WO2007088630A1 - Checking device, checking method, and checking program - Google Patents

Abstract

A checking device, method, or program for checking the work of a person concerning an apparatus. To detect the interference between an apparatus installed in a work area and the worker, the position of the person serving as a worker, shape information, the position where the apparatus is installed in the work area, and the information on the shape are stored. Dangerous portion of the apparatus dangerous to the person are extracted from the information on the apparatus and the information on the person concerning the apparatus, and information representing the dangerous portions is outputted, thus providing check information on the work and check information on the workability at device designing stage.

Description

 Specification

 Verification device, verification method, and verification program

 Technical field

 [0001] The present invention relates to work verification of each work process such as assembly work, dismantling work, maintenance work, normal work, etc. of various devices such as mechanical devices, and particularly to dangerous places and shapes in various work. The present invention relates to a verification device, a verification method, and a verification program used for verifying a dangerous situation at a device design stage, etc., and for checking a worker's safety.

 Background art

 [0002] The design tool (CAD: Computer Aided Design) is used for confirmation and verification at the design stage of risk prevention for workers in the assembly process, dismantling work, maintenance work, and normal work process of equipment. There have been carried out methods such as visual confirmation at the factory, trial manufacture of the object, and confirmation of the actual product.

 [0003] With regard to such work confirmation and verification, Patent Document 1 discloses a sequential interference check along the assembly Z disassembly path of the assembly Z disassembly target part in the virtual three-dimensional space set in the computer. While performing the above, it is disclosed that virtual assembly Z disassembly work and assembly Z disassembly workability evaluation of machinery are performed simultaneously, and Patent Document 2 evaluates assembly performance using CA blueprints. In Patent Document 3, space information including assembly space and adjustment maintenance space is calculated using CA blueprints, and this space information is used as support information for machine assembly, etc. What is used is disclosed.

 Patent Document 1: Japanese Patent Laid-Open No. 9 311883

 Patent Document 2: Japanese Patent Laid-Open No. 2002-144171

 Patent Document 3: Japanese Patent Laid-Open No. 9-81608

 Disclosure of the invention

 Problems to be solved by the invention

[0004] In such work confirmation and verification, visual check on the screen developed CA CA blueprint cannot completely eliminate the visual check omission, so that the check omission is an assembly work, There is a risk of harm to workers engaged in dismantling work, maintenance work, and normal work. The To improve the work, it is necessary to change the design of the equipment. As the scale of the equipment increases, the number of confirmation man-hours increases and the number of omissions in visual confirmation increases. In addition, confirmation of the actual trial production costs, man-hours, and turn for the trial production. In addition, avoiding danger to the human body may hinder work such as assembly and operation and reduce efficiency.

 [0005] For this reason, at the design stage, there are demands for detecting and verifying dangerous parts to people, as well as improving the verification quality, reducing the number of man-hours, and shortening the work number.

[0006] With respect to such a problem, the above-mentioned Patent Documents 1 to 3 do not disclose or suggest the structure, but also disclose or suggest a configuration that solves the problem.

Accordingly, an object of the present invention is to provide work verification information regarding work verification of a person involved in assembly of an apparatus or the like.

[0008] Further, an object of the present invention is to provide verification information on the workability of a person related to the apparatus at the stage of designing the apparatus, regarding the work verification of the person related to the assembly of the apparatus.

[0009] Further, the object of the present invention will be described in detail. For the verification of human work related to the assembly of the apparatus, work efficiency and safety verification information is provided, and work efficiency and worker safety are improved. Is to contribute to

 Means for solving the problem

[0010] In order to achieve the above object, according to a first aspect of the present invention, there is provided a verification apparatus for verifying a person's work related to an apparatus, wherein information representing the apparatus and information about a person related to the apparatus are used. And a processing unit for extracting a dangerous part of the device, and an output unit for outputting information representing the dangerous part.

 [0011] In this verification apparatus, a dangerous part that poses a danger to a person is extracted from the design data of the apparatus and information representing a person related to the apparatus, and information indicating the dangerous part, that is, verification information is output. The above-mentioned purpose can be achieved, for example, the output information can be developed on the screen of a display device and used for correction of design data, and can be used for designing a highly safe device. .

[0012] In the verification apparatus, the processing unit may extract the person's dangerous part exerted by the apparatus, and the output unit may output information representing the dangerous part. The above object can be achieved. [0013] In the verification apparatus, the processing unit determines a risk level of the dangerous part, and the output unit outputs information indicating the risk level determined by the processing unit. The above object can be achieved similarly.

 [0014] In the verification device, the processing unit may determine the form of the dangerous part, and the output unit may output information representing the form determined by the processing unit. The above object can be achieved.

 [0015] In the verification device, the processing unit may determine a distance between the dangerous place and the person, and the output unit may output information indicating the distance determined by the processing unit. Well, the above objective can be achieved as well.

 [0016] In the verification device, the danger location may include a physical or chemical danger, and may include a location that is directly or indirectly dangerous to the person. The part may be configured to include each part of a person's head, torso, hand, and foot, and the above object can be achieved in the same manner.

 [0017] In order to achieve the above object, a second aspect of the present invention provides a verification apparatus for verifying an interference state between an apparatus arranged in the work area and the worker in the work area. First storage means for storing corresponding human body position and Z or shape information, second storage means for storing information regarding the placement position and Z or shape of the apparatus in the work area, and the first storage A verification for verifying an interference state between the worker and the device in the work in the work area of the worker using the information stored in the means and the information stored in the second storage means. And an output unit that outputs the verification result by the verification unit so that the interference state can be discriminated, and the above object can also be achieved by such a configuration. In this verification device, the interference state between the worker and the device is a state in which the interference area set around the worker or the device overlaps, and is wider than the state in which the worker and the device directly overlap. is there.

[0018] In order to achieve the above object, a third aspect of the present invention provides a verification method for verifying the work of a person associated with a device, from information representing the device and information of a person associated with the device. The method includes a step of extracting a dangerous point of the device and a step of outputting information representing the dangerous point. [0019] By using this verification method, the design data of the device, the information indicating the person related to the device, and the dangerous point that poses a danger to the person are extracted, and the information indicating the dangerous point, that is, the verification information is obtained. . Such verification information can be developed on, for example, a screen of a display device and used for correction of design data, and can be used for designing a highly secure device.

 [0020] In the verification method, the risk level of the dangerous part may be determined by including a step of extracting the human dangerous part exerted by the device and a step of outputting information representing the dangerous part. The above object can be achieved in the same manner as a configuration including a process and a process of outputting information representing the determined danger level.

 [0021] The verification method may include a step of determining the form of the dangerous place and a step of outputting information representing the determined form, and the dangerous place and the person. And a step of outputting information representing the determined distance, and the above object can be achieved in the same manner.

 [0022] In the verification method, the dangerous part includes a physical or chemical danger, and may include a place directly or indirectly dangerous to the person. The above-mentioned dangerous part may be configured to include human head, torso, hand and foot parts, and the above object can be achieved in the same way.

 [0023] In order to achieve the above object, a fourth aspect of the present invention provides a verification method for verifying the state of an apparatus placed in a work area and a worker! First, using the information on the human body position and Z or shape in the work area and the information on the device arrangement position and Z or shape in the work area, and determining the positional relationship between the worker and the apparatus; As a result of discrimination by the discrimination step, a configuration is provided that includes a step of verifying a position that is dangerous to the human body, and an output step of outputting the dangerous location verified by the verification step in a discriminable form. Even with such a configuration, the above object can be achieved.

[0024] In order to achieve the above object, a fifth aspect of the present invention is a verification program for verifying a person's work related to an apparatus using a computer, which relates to information representing the apparatus and the apparatus. The method includes a step of extracting a dangerous part of the device for the person from information on the person, and a step of outputting information representing the dangerous part. [0025] By using this verification program, a risk location that poses a risk to a person is extracted from the design data of the device and information representing the person related to the device, and information indicating the risk location, that is, verification information is obtained. . Such verification information can be developed on, for example, a screen of a display device and used for correction of design data, and can be used for designing a highly secure device, etc. .

 [0026] The verification program may be configured to include a step of extracting the dangerous part of the person exerted by the device and a step of outputting information representing the dangerous part. The above object can be achieved in the same manner as a configuration including a step of determining and a step of outputting information representing the determined risk level.

 [0027] In the verification program, the risk location and the person may be configured to include a step of determining a form of the dangerous location and a step of outputting information representing the determined form. The above-mentioned object can be achieved in the same manner as a configuration including the step of determining the distance to and the step of outputting the determined distance.

 [0028] In the verification program, the dangerous part includes a physical or chemical danger, and the dangerous part may include a place that is directly or indirectly dangerous to the person. The above-mentioned object can be achieved in the same manner as a configuration including the human head, torso, hands, and feet.

 The invention's effect

[0029] According to the present invention, the following effects can be obtained.

 [0030] (1) By using the design data of the device, verification information indicating a dangerous place for the person of the device and a dangerous part of the person can be output.

[0031] (2) If a display device is used for the output unit, the verification information can be developed on the design data and used for modification of the design data.

[0032] (3) Since verification information indicating a dangerous part of a device or a dangerous part of a person can be used at the design stage of the device, man-hours for trial production and the like can be reduced.

[0033] (4) By reducing the check man-hours, the design and development time of the device can be shortened.

Brief Description of Drawings 圆 1] It is a block diagram showing a work verification apparatus according to the first embodiment.

圆 2] A flowchart showing the processing procedure of the work verification process according to the first embodiment. 圆 3] A diagram showing a dangerous part of the apparatus.

圆 4] It is a diagram showing another dangerous point of the device.

FIG. 5 is a diagram showing the presence or absence of chamfering.

FIG. 6 is a diagram showing an example of extraction of a sharp shape.

FIG. 7 is a diagram showing a configuration example of a database.

 FIG. 8 is a flowchart showing a processing procedure of verification processing according to the second embodiment.

 FIG. 9 is a diagram showing an example of component attribute definition.

[10] It is a diagram showing an example of the definition of a dangerous area.

 FIG. 11 is a diagram showing an example of a determination condition for danger.

12) A diagram showing a definition example of a dangerous area and a display example thereof.

[13] FIG. 13 is a diagram showing an example of sharp shape extraction and display in a dangerous area.

 FIG. 14 is a diagram showing extraction of sharp shapes in other dangerous areas and display examples thereof.

 FIG. 15 is a flowchart showing a processing procedure of verification processing according to the third embodiment.

 FIG. 16 is a diagram showing an arrangement example of a device model and a human body model.

[17] FIG. 17 is a diagram showing an example of classification of dangerous parts.

[18] FIG. 18 is a diagram showing a dangerous region of a human body part with respect to the apparatus.

 FIG. 19 is a flowchart showing a processing procedure of verification processing according to the fourth embodiment. [20] FIG. 20 is a diagram showing an example of classification of dangerous areas.

 FIG. 21 is a flowchart showing a processing procedure of verification processing according to the fifth embodiment. [22] A diagram showing a dangerous shape outside the apparatus.

[23] FIG. 23 is a diagram showing a dangerous shape in the work area of the hand.

[24] FIG. 24 is a diagram showing a sharp shape related to an operator's foot.

 FIG. 25 is an enlarged view of a part of a sharp shape related to an operator's foot.

[26] FIG. 26 is a diagram showing the trajectory of the operator and other workers related to the apparatus.

Explanation of symbols [0035] 2 Work verification device

 4 Verification unit

 8 Database

 10 Output section

 34A Human Body Model Database Department

 34B Tool model database

 38 Display device

 98 Equipment model

 100 human body model

 BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment]

 [0037] A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration example of the work verification apparatus according to the first embodiment.

 [0038] This work verification device 2 is an example of a verification device that verifies the work of a person associated with the device, that is, the interference state between the device arranged in the work area and the worker in the work area. For example, it is constituted by a computer system. Here, the devices to be verified by the work verification device 2 include mechanical devices that are the targets of various operations such as assembly, disassembly, maintenance, normal operation, etc. by persons such as workers. Includes persons such as workers and operators who are involved with the equipment in dismantling and maintenance. In addition, the interference state between the equipment and the worker is set or assumed to be an interference area around the worker or the equipment, and the interference areas overlap or the interference is set or assumed around the equipment side of the equipment. When entering the area, it is a case where the apparatus enters the interference area which is set or assumed around the worker, and is wider than the state where the worker and the apparatus directly overlap.

[0039] The work verification device 2 includes a verification unit 4, an input / output interface unit 6, a database 8, an output unit 10, and the like. The verification unit 4 uses various types of 3D CAD (Computer Aided Design) processing functions such as 3D shape editing and the information stored in the database 8 that constitutes the first and second storage means. A function that extracts the dangerous part of the device for the person from the information indicating the device to be verified and the information of the person who is the operator of the device. A processing unit that has a function to verify the interference between workers and equipment during work in the business area, such as CPU (Central Processing Unit), ROM (Read-Only Memory), RAM (Random-Access Memory), etc. The recording medium is configured. In addition to the work verification program according to the present invention, the recording medium stores a calculation processing program, a presentation processing program for presenting calculation results, and the like. The recording medium may be a portable recording medium.

 [0040] The verification unit 4 includes a safety calculation processing unit 12, a work attribute definition unit 14, a verification target extraction unit 16, a work condition definition unit 18, a work area placement unit 20, and the like. The safety calculation processing unit 12 performs processing such as confirmation and verification of human safety from information representing the device and information representing a person related to the device. Process 22 and danger classification process 24 are included, and the risk targets include dangerous parts of equipment and dangerous parts of humans. The work attribute definition unit 14, the verification target extraction unit 16, the work condition definition unit 18 and the work area placement unit 20 cooperate with the safety calculation processing unit 12 and also provide information necessary for processing such as safety calculation. I will provide a. Therefore, the work attribute definition unit 14 defines work attributes such as fastening parts and work parts for the parts in the assembly, disassembly, and maintenance of the device. The verification target extraction unit 16 extracts verification targets such as tools and work from the apparatus. The work condition definition unit 18 defines work conditions such as manual work, foot work, and visual work. Further, the work area placement unit 20 places work areas such as tools and human bodies.

 [0041] The input / output interface unit 6 captures, for example, three-dimensional data 26, tool model data 28, and human body model data 30 as information representing a device to be verified with respect to the verification unit 4 and a person or tool related to the device. It is. The tool model data 28 is data representing tools such as a driver and a wrench, and the human body model data 30 is data representing parts such as a person's head, face, hands, torso, and feet. Also, for example, a keyboard 32 is connected to the input / output interface unit 6 as an information input unit used for correcting the three-dimensional data 26 and the like based on the verification result output to the output unit 10.

[0042] The database 8 is a first storage means for storing the human body position and Z or shape information corresponding to the worker, and a second storage means for storing information regarding the arrangement position and Z or shape in the work area of the apparatus. For example, it is composed of a storage medium such as a hard disk device, and stores pre-loaded tool model data 28, human body model data 30 and the like. In this database 8, database sections 34 and 36 are organized as a plurality of areas. In the database section 34 constituting the storage area of the work area information, in addition to the tool model data 28 and the human body model data 30, the work area information related to them is stored. Etc. are stored. In addition, the database section 36 constituting the storage area for the verification results stores the verification results of the verification section 4, that is, the results of the safety calculation process, and is used for correction of the device data. Stored as history information.

[0043] The output unit 10 outputs the verification result from the verification unit 4, that is, outputs the verification result so that the interference state can be determined. In this case, the output unit 10 is provided with a display device 38 that presents information representing the verification result so as to be visible. The display device 38 outputs display information such as a device, a person, a dangerous part of the device, a dangerous part of a person, and the like as a calculation result of the safety calculation processing unit 12. The display device 38 is composed of, for example, an LCD (Liquid Crystal Display) and displays the presentation information. The display contents include a danger level color-coded display 40, a danger target classification display 42, and a danger target warning 44, and the warning includes a warning sound in addition to the display on the image. The danger level color-coded display 40 makes the degree of danger visible by making the degree of danger different. The dangerous object classification label 42 clearly indicates the target part or person's position. Hazardous object warning 44 warns of the danger by identifying the dangerous part of the device and the human part.

[0044] In such a configuration, the tool model data 28 and the human body model data 30 are taken into the verification unit 4 through the input / output interface unit 6 and stored in the database unit 34 that forms the storage region of the work area information of the database 8. The The three-dimensional data 26, which is design data, is taken into the verification unit 4 from the input / output interface unit 6, and the safety is verified with reference to the tool model data 28 and the human body model data 30 read from the database unit 34. In this case, the design data 3D data 26, tool model data 28 and human body model data 30 are matched to verify the relationship between the device and the person! Recognizing dangerous parts (apparatus) such as shape and human dangerous parts, the verification result is output to the output unit 10 of the three-dimensional data and displayed on the screen of the display device 38. In that case, the dangers to human parts are classified and displayed on the screen. In addition, the danger location of the device, the danger according to its shape and the distance between people are displayed. Display on the screen of device 38. It also displays on the screen the parts that are exposed on the outer shape (outer surface) of the device and places where the shape poses a danger to humans.

[0045] In this way, for the workers involved in assembly work, dismantling work, and maintenance work based on the three-dimensional data of the design data of the device, the dangerous place and the dangerous part are verified, and the shape that affects people, etc. If the dangerous part or dangerous part is presented by display etc., design changes and worker safety can be improved from the presented information.

[0046] In addition, if a part of a person's dangerous force is classified and presented, it becomes useful information about work and design.

[0047] If the degree of influence on people! / Is presented as information indicating the distance of dangerous shape power, etc., the degree of danger! Can be recognized.

 [0048] By performing such work verification and presentation of danger information, it is possible to detect dangerous places for people in the design process, etc., reducing the number of risk check man-hours, shortening the development period of equipment, and conducting on-site trials. Efficient design, such as omission.

 Next, the work verification method will be described with reference to FIGS. 2, 3, 4, 5, and 6. FIG. FIG. 2 is a flowchart showing the processing procedure of the work verification process, and FIGS. 3 to 6 are diagrams illustrating dangerous shapes. In FIG. 2, the same parts as those in FIG.

[0050] This work verification method includes taking in three-dimensional data (Ml) representing a device that is the target of various work such as assembly work, dismantling work, maintenance work, and normal operation, creating database 8 (M2), It includes stepwise processing steps such as assigning attribute definitions to device parts (M3), safety verification (M4), and output of verification results (M5). This processing process poses a danger to workers engaged in various tasks such as assembly work, dismantling work, maintenance work, and normal operation based on the shape of the design data in the 3D data, etc., by executing the verification program. The dangerous part and the dangerous part of the person are verified, and the verification result is displayed on the display device 38.

 [0051] (1) Importing 3D data (Ml)

[0052] At the start of processing, the three-dimensional data 26 representing the device is acquired (step SD o [0053] (2) Creation of database 8 (M2)

 The tool model data 28 and the human body model data 30 are taken into the verification unit 4 through the input / output interface unit 6 and stored in the database 8. Therefore, in the device design process based on the 3D data 26, information representing tools, human work areas, etc. is based on the 3D data 26 and referring to the basic model tool model data 28 and human body model data 30. Created in database 8. An example of the information created and stored in this database 8 is as follows.

 [0055] a. Work area information of fastening parts such as screw nuts and the like constituting the verification target device, and parts subject to manual work

 b. For fastening parts, information on the work area of the hand holding the driver and the driver, and for parts that are directly hand-operated such as handles, the work area information of the hand holding the handle

 cFor areas such as labels that need to be read using a barcode reader, work area information for the hand holding the barcode reader and barcode reader

 d. For foot operation targets such as pedals, the size (area) of the foot to be operated is specified as work area information.

 e. For areas that require visual confirmation, work area information includes the size of the person's face f. Other work areas for assembly and disassembly, operation areas when using the equipment, etc.

 For such work area information, the work area database section in the database 8 shown in FIG. 2 includes, for example, work area information of tools and hands, work area information of hands, feet, faces, and other parts. Stored.

[0057] (3) Assigning attribute definitions (M3)

 [0058] The attribute definition is a definition that represents an attribute for a part or the like in advance with respect to design data. For example, an attribute is defined for a part that is an object of hand operation, foot operation, or visual confirmation (step S 2)

 [0059] (4) Verification process (M4)

[0060] This verification process includes a process for confirming safety to humans at the time of designing the device, etc., and confirming the shape of peripheral parts in the work area (step S3) and sharpening of parts, etc. Shape extraction ( This includes processing such as step S4).

 [0061] In this verification process, a part requiring work and operation is extracted based on the attribute given in step S2, and a work range in the apparatus is defined based on the database 8 in the work area. For example, a sharp shape that poses a danger to a person is extracted for a part shape within a range of a constant distance, for example, 0 to 5 [cm]. Here, the fixed distance is individually set according to the degree of danger to each part (hand, foot, face) of a person. In the distance information for the face, the distance information from the dangerous object to a certain distance, for example, 20 [cm] is used as the judgment information.

 [0062] The sharp shape of the component is, for example, a thin plate portion, a minute shape, a sharp corner shape, or the like, which is determined and extracted. As shown in Fig. 3, the standard for sharp shape extraction or recognition is that the distance dl between the two surfaces of the part 46 is, for example, l [mm] or less, as shown in Fig. 3, and the minute shape, as shown in Fig. 4, The width of the part 48 (including the diameter) d2 is, for example, l [mm] or less, and in the shape of a sharp corner, for example, a width of, for example, l [mm] or less, a square shape with no chamfering, etc. Extract. In this case, the chamfering is judged on the presence or absence of chamfering, and in the part 50 shown in FIG. 5 (A), there is a corner 52, so there is no chamfering, and as shown in FIG. If chamfer 56 exists in 54, the shape where the angle Θ of each side 58, 60 (two sides) to be terminated is, for example, 90 [deg.] Or less is recognized as no chamfer, and even if chamfer 56 exists, If the chamfering width d3 is narrow, for example, l [mm] or less, it is extracted as a dangerous place as in the case of no chamfering.

[0063] Further, regarding the extraction of a sharp shape, for example, as shown in FIG. 6, the device 62 includes a handle 66 operated by an operator's hand 64, and in the vicinity of the handle 66, Assuming that sharply shaped parts 68, 70, 72 protrude, parts 68, 70, 72 will be handed by hand No. 66 [operation area 74]. Extract these 咅 68, 70, and 72. In this case, the operation area 74 is an interference area for the hand 64 device. That is, the operation area 74 is an area in which the hand 64 that holds the handle 66 is a range necessary for the operation of the handle 66 and moves in accordance with the operation. If the parts 68, 70, 72 protrude in such an operation area 74, the parts 68, 70, 72 can be operated by the operation of the handle 66 by the hand 64 during assembly, disassembly, maintenance or normal operation of the device 62. There is a risk of injury to the hand 64 if it comes into contact with the hand 64 force. Also, if you want to avoid the occurrence of trauma, it is difficult to operate the handle 66. The work is hindered. For part 68, danger range 76 is set, and for parts 70 and 72, danger range 78 is set. Therefore, regarding the extraction of such a sharp shape, the parts 68, 70 and 72 are extracted and used as information for prompting a design change or the like. These devices 62, parts 68, 70, 72 and the like are examples, and the present invention is not limited to these.

[0064] (5) Verification result output (M5)

 [0065] The above-described verification result is displayed on the display device 38 (steps S5 and S7). In this case, through extraction of the sharp shape (step S4), etc., the dangerous part and the dangerous part of the person are identified, and these are displayed on the display device 38, and the displayed information is used as design data on the shape. Reference is made to the shape correction in the CAD data (step S6), and the correction result is verified again through steps S2 to S4. If the danger is avoided, it is displayed on the display device 38 for safety confirmation. (Step S7). Devices with secured safety will be transferred to work processes such as manufacturing processes (Step S8).

 [0066] As an example of the verification result, the display content on the display device 38 is as follows.

 [0067] A. Classification of danger for human parts

 [0068] According to the classification of the danger to the human part, the human hand, the foot, the face, and other parts are classified, and the necessary work area is extracted from the database 8 by the attribute of the preset part, It classifies according to the affected person's part, and each part is color-coded in a different color and displayed on the screen of the display device 38.

 [0069] As a colored display, for example, when there is a dangerous shape in a manual work location, for example, a yellow display is performed. If there is a sharp shape around the pedal for footwork, for example, it is displayed in blue. Also, if there is a sharp shape in the vicinity of the part that the operator needs to read visually, such as a label in the device, for example, a red display is given as a warning to warn that it is a dangerous part . In this way, the display is displayed with different coloring for each dangerous place that affects people.

 [0070] B. Different display depending on the degree of influence on people

[0071] The degree of influence (risk) on the person involved with the device varies depending on the location and the distance from the part. Therefore, the degree of danger is announced on the screen of the display device 38 according to the relative distance between the dangerous place and the person, for example, by changing the display color, color transparency, and brightness. [0072] Regarding the display for changing the transparency and brightness of the color, the dangerous shape changes the display color according to the distance from the work area. For example, when the distance of the work area force of the dangerous shape is 5 [mm] or less, an opaque display color (dark, colored) is used. When the distance of 5 [mm] force is 10 [mm], the display color is translucent. If the risk is less than 10 [mm], the display will be displayed so that the degree of danger can be distinguished from the display color, such as a transparent display color due to the reduced risk.

 [0073] In addition, since the degree of risk varies depending on the part (hand, foot, face) of the person, the display color is changed for each part, and the setting is made individually according to the influence on the person.

 [0074] C. Extraction display of dangerous parts of equipment

 [0075] As the external shape of the device, for example, a dangerous part is extracted and displayed with respect to the shape exposed to the outside of the device. In this case, for the determination of the external part of the device, the coordinates in the XYZ directions are taken based on the coordinate origin defined on the CAD data based on the 3D data representing the device, and the minimum and maximum coordinates on that coordinate are taken. A surface with a certain dimension or more in the coordinates is judged as the external surface of the device and recognized.

 [0076] If there is a shape portion such as a fine protrusion on the recognized outer surface, there is a danger to the person involved in the device. To warn.

 [0077] The risk to the person of the device is divided into parts such as a person's face, torso, and feet, and the dangerous part is displayed on the three-dimensional data for each part and warned.

[0078] The position of the installation floor surface of the device is aligned with the installation surface of the human foot based on the size (dimension) information such as the height and volume of the human face, torso, and foot. Define a human part.

[0079] As a specific example of the protrusion shape that affects people, for example, a protrusion shape having a protrusion amount from the outer peripheral surface of Φ = 5 [mm] or less, for example, 10 [mm] or more may be used.

[0080] As described above, import of three-dimensional data (Ml), creation of database 8 (M2), assignment of attribute definitions to parts of the device (M3), safety verification (M4), verification results Output (M

5) etc., the design data is verified, and based on the display of the result, the shape etc. in the 3D CAD data is corrected, so that highly safe work can be realized. The risk of affecting can be avoided.

Next, the database 8 will be described with reference to FIG. Figure 7 shows the database 8 3 is a diagram illustrating a configuration example of the database unit 34 of FIG. In FIG. 7, the same parts as those in FIG.

 [0082] The database unit 34 may be configured to set a human body model database unit 34A, a tool model database unit 34B, and a dangerous area database unit 34C. In this case, the human body model database unit 34A is an example of first storage means for storing the human body position and Z or shape information corresponding to the worker, and the tool model database unit 34B is an arrangement in the work area of the device. This is an example of a second storage means for storing information on the position and Z or shape, and stores information on the tool model. In this case, the human body model database section 34A stores information on human hands, torso, legs, face, whole body, men, women, and the like. Further, the tool model database unit 34B classifies tools used for the operation of the apparatus, and stores information such as a driver, a wrench, and a spanner. The danger area database 34C stores information indicating the danger area of the relationship between the person and the device.For example, the distance of the hand or foot from the outer shape of the device (hand: outer shape + XX [mm], foot : External shape + XX [mm]) etc. are stored.

 [0083] The human body model database unit 34A, the tool model database unit 34B, and the dangerous region database unit 34C are linked, and information on the tool used in the work region and the person using the tool is used for the verification process.

 [Second Embodiment]

 Next, a second embodiment of the present invention will be described with reference to FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. FIG. 8 is a flowchart showing the processing procedure of the verification processing according to the second embodiment, FIG. 9 is a diagram showing an example of component attribute definition, FIG. 10 is a diagram showing an example of dangerous area definition, and FIG. Fig. 12 is a diagram showing an example of the judgment condition for acceptability, Fig. 12 is a diagram showing an example of dangerous area definition, Fig. 13 is a diagram showing the extraction and coloring of sharp shapes in the dangerous region, and Fig. 14 is sharp shapes in other dangerous regions. It is a figure which shows extraction and coloring display. 8 to 14, the same reference numerals are given to the same or related parts as those in FIGS. 1, 2, 6, and 7.

This verification process includes a process of recognizing a shape that may cause harm to a person related to the apparatus from CAD data representing the apparatus and displaying the recognition result on a three-dimensional display screen. In this verification process, the above-described work verification device 2 (Fig. 1), data Base 8 (Fig. 7) is used.

 [0087] At the start of this processing, the three-dimensional data 26 representing the device is taken in (step S11), and attribute definitions are attached to the parts constituting the device (step S12). In this case, attribute definitions are attached to the target equipment and work conditions. In this attribute definition, for example, as shown in FIG. 9, the attribute definition for the target part and the work condition for the target tool are defined. In other words, the screws are attributed as fastening parts, the target tool is a driver, and the working conditions are defined as manual work. Handles are defined as manual parts with attribute definitions, but the target tool has a work condition of manual work. The pedal is defined to have a footwork component attribute definition, no target tool, and the work condition is footwork. In addition, the camera is defined as having visual attributes and the working condition of the target tool is visual work.

 [0088] For the target tool, the placement of the target tool is identified with reference to the work area information from the database 8 (step S13), and the verification process (M4) described above (Fig. 2) is dangerous. (Step S14).

 In this risk determination, risk determination information (FIG. 11) is used together with the risk area information (FIG. 10). Regarding the dangerous area information, the dangerous area is defined as shown in FIG. 10, for example, a hand, a foot, a face, etc. are specified as a target part of a person, and a predetermined distance range from the outside of the hand is, for example, 0 to 5 cm. ], As a predetermined distance range from the outside of the foot, for example, a range of 0 to 5 [cm], and as a predetermined distance range from the outside of the face, for example, a range of 0 to: LO [cm] is defined as the dangerous area. . In this example, the danger area is larger on the face than on the limbs. In the case of a hand, for example, as shown in FIG. 12, a range 80 of the distance d4 = 0 to 5 [cm] of the outer force of the hand 64 is defined as a dangerous area that is an interference area.

[0090] In addition, as shown in Fig. 11, the judgment conditions for determining whether danger is possible include a thin plate shape, a protrusion shape, a sharp shape, and the like as the judgment items. The thin plate shape is, for example, 1 [mm] or less as the plate thickness The length and width are, for example, 10 [mm] or more, and the protrusion shape is, for example, l [mm] or less as the diameter, and the length and width are, for example, 10 [mm] or more. When the length is 1/10 or less and one side is, for example, 10 [mm] X 10 [mm], the chamfer width is determined as a sharp shape, for example, l [mm] or less. An angle between two sides or two faces of 90 degrees or less is defined as no chamfering. [0091] After the determination of the possibility of danger, the dangerous part and the dangerous part of the person are extracted (step S15). In this dangerous part and human dangerous part extraction, parts that are harmed by humans (parts that cause trauma) are extracted. Then, the dangerous part and the dangerous part are displayed on the display device 38 (step S16). In this case, color-coded display according to the danger level and color-coded display of the parts affected by people.

 In this case, for example, as shown in FIG. 13, the screen 39 of the display device 38 displays a device model 82 force S, and this device model 82 has parts 86, 88, 90, and 92 as tool models. Driver 94, hand 64, etc. are displayed as a human body model. As is clear from the device model 82, the parts 90 and 92 are present in the operation area 74 (FIG. 6) of the hand 64 that operates the driver 94. Then, a sharp shape (thin plate shape) in this region is extracted, and in the device model 82, a red portion 96 representing a dangerous spot is formed on the end faces of the parts 90 and 92, and a colored display representing the dangerous spot is formed.

 Further, for example, as shown in FIG. 14, the inner side surface portion of the device model 82 and the parts 86 and 88 are unfolded and displayed on the screen 39 of the display device 38 from the above-described image. In this case, the parts 90 and 92 are present in the operation area 74 of the hand 64 that operates the driver 94, and as described above, the operation area 74 is determined to be a dangerous area in the determination of the possibility of danger. A sharp shape (thin plate) in the range of 5 [mm] is extracted from the outside, and as a color display of the corresponding part of the thin plate, the red part 96 representing the dangerous part on the image is displayed on the end face of the parts 90 and 92 related to the operation area 74. Is formed, and it is colored to indicate the dangerous area.

 [0094] Based on the display of the verification result, the display information is referred to, the positions of the parts 90 and 92, the positions of the parts 86 and 88, and the shape thereof are corrected on the CAD data. Safety is enhanced.

 [Third Embodiment]

Next, a third embodiment of the present invention will be described with reference to FIG. 15, FIG. 16, FIG. 17, and FIG. FIG. 15 is a flowchart showing the processing procedure of the verification processing according to the third embodiment, FIG. 16 is a diagram showing an example of the arrangement of the apparatus and the human body model, and FIG. 17 is a diagram showing an example of the classification of the dangerous part. FIG. 18 is a diagram showing a dangerous region of a human body part with respect to the apparatus. 15, 16, 17, and 18, the same or related parts as those in FIGS. The same reference numerals are given.

 [0097] In this verification process, the relationship between the three-dimensional data representing the device and the human body related to the device is recognized, and the human part and the risk to that part are classified and displayed on the three-dimensional screen. It includes processing to expand and display. Also in this verification process, a verification program is launched and executed by a computer, and the above-described work verification device 2 (FIG. 1), database 8 (FIG. 7), etc. are used. In this case, the storage area power tool and the human body model of the work area information in the database 8 are referred to, and the human hand, foot, face, etc. are referred to in the human body model.

 When starting the processing, when the verification program is executed, three-dimensional data representing the device is taken in (step S21), and attribute definitions are attached to the parts constituting the device (step S22). In this case, attribute definitions are attached to the target tool and work conditions. The assignment of this attribute definition is as described in FIG.

 [0099] The target tool is determined based on the acquisition of the three-dimensional data (step S23), then the working conditions are determined (step S24), and then the work area information is referenced from the database 8, and the arrangement of the human body model along with the device model is determined. Determined (step S25). Figure 16 shows an example of the arrangement of the determined device model and human body model. In this case, the arrangement of the device model 98 and the human body model 100 is displayed, and the device model 98 includes the table 99 and the device 102.

[0100] To determine the possibility of danger, the danger area information (Fig. 10) and the danger judgment condition (Fig. 11) are used to judge the possibility of danger (step S26). (Step S27). In the extraction of the dangerous part, the part where the human body is damaged (the part causing trauma) is extracted. The classification of this dangerous part is determined from the classification based on the attribute definition information and the coordinate data in the device model, and the floor is set as the reference 0. For example, as shown in Fig. 17, the dangerous part is the foot, hand and torso, face. It is defined as 0 to 800 [111111] for feet, 800 to 1200 [111111] for hands and torso, and 1200 [mm] for faces. Such definition information is used as comparison information to determine the possibility of danger. For example, as shown in FIG. 18, in the device model 98 and the human body model 100, hi is a foot danger area, h2 is a torso danger area, and h3 is a face danger area. These dangerous areas h 1 ~! ι3 is an interference area involving the device and the person. [0101] Then, the dangerous part and the dangerous part are displayed on the display device 38 (step S28). In this display, a color-coded display according to the danger level of the dangerous part and a color-coded display of the part affected by people are performed.

 By the way, in this embodiment, the recognition and the determination of the dangerous area affecting the human body are performed based on the determination condition indicating the dangerous shape shown in FIG. 11 and the classification of the dangerous part shown in FIG. It is then determined whether there is a corresponding dangerous shape in the dangerous area, and an interference check between the dangerous shape and adjacent parts is performed, for example, by comparing the coordinate elements. It can be determined whether there is a sharp shape against the shape that is present, and if it exists, it is recognized as a dangerous shape.

 [Fourth Embodiment]

 Next, a fourth embodiment of the present invention will be described with reference to FIG. 19 and FIG.

 FIG. 19 is a flowchart showing a processing procedure of verification processing according to the fourth embodiment, and FIG. 20 is a diagram showing an example of dangerous area classification and display. 19 and 20, the same reference numerals are given to the same or related parts as those in FIGS.

 [0105] This verification process recognizes the danger location in the 3D data representing the device, the distance between the device and component outline and the person, determines the danger level according to the distance, and displays the determination result on the 3D screen. Includes processing to expand and display above. In this verification process, the above-described work verification device 2 (Fig. 1), database 8 (Fig. 7), etc. are used. In this case, the tool model and the human body model are referred to from the storage area of the work area information in the database 8, and the human hand, foot, face, etc. are referred to in the human body model.

 [0106] At the start of this processing, a three-dimensional model representing the device is taken in (step S31), and attribute definitions are attached to the parts constituting the device (step S32). In this case, attribute definitions are attached to the target tool and work conditions. The assignment of this attribute definition is as described in FIG.

 [0107] The target tool is determined based on the acquisition of the three-dimensional data (step S33), and then the work area is arranged (step S34).

[0108] Then, the parts in the work area of the worker are checked (step S35), and the dangerous shape in the work area is extracted by this check (step S36). Parts check In FIG. 10, the definition of the dangerous area in FIG. 10 is referred to, and the determination items and conditions shown in FIG. The dangerous shape extraction process is omitted because it has been described in the third embodiment, but extraction of the 3D data force dangerous shape is executed.

 [0109] Then, on the display device 38, the existence of the verified dangerous shape and the like are displayed on the model display together with the device model represented by the three-dimensional data (step S37). In this display, color-coded display according to danger level, color-coded display of areas affected by people, etc. are performed. The color-coded display of the danger level of this danger area indicates the distance between the outer shape of the device and the human body according to the danger level. For example, danger level 1 (highest danger level), danger level 2 (intermediate danger level), danger Classified according to level 3 (low risk level), check the danger shape at each risk level 1, 2 and 3 !, and display them in different colors on the screen of the display device 38.

 [0110] The color-coded display of the danger level of this dangerous part will be described with reference to FIG. 20. The screen 39 of the display device 38 has a device model 82, parts 86 and 88, a tool 94, a dryer 94, and a human body model. Hand 64 is displayed, and for example, a danger level mark 104 representing the danger level 1 range, a danger level mark 106 representing the danger level 2 range, and a danger level 3 range are represented as the display form representing the danger area. The danger level mark 108 is displayed. Also, the danger level mark 110 is displayed on the parts 90 and 92 that overlap with the danger level marks 104 and 106, and even if it is within the danger level mark 108, if the part 112 is a dangerous shape, it is dangerous. A danger level mark 114 indicating the shape is displayed. In this case, the danger level marks 104, 106, and 108 are circular marks surrounding the range, and the range represents the confirmation range of the danger level. In this case, the coloring differs depending on the danger level.For example, the danger level marks 104 and 114 representing the highest danger level are red, the danger level mark 106 representing the intermediate danger level is green, and the low danger level. The danger level mark 108 representing the level is displayed in blue.

 [0111] With such a configuration, it is possible to immediately recognize the dangerous area, easily determine the dangerous part and the dangerous part, and correct the design data according to the dangerous level.

 [Fifth Embodiment]

Next, with respect to the fifth embodiment of the present invention, FIG. 21, FIG. 22, FIG. 23, FIG. Will be described with reference to FIG. FIG. 21 is a flowchart showing the processing procedure of the verification processing according to the fifth embodiment, and FIGS. 22 to 25 are diagrams showing recognition of the device model, the human body model, the dangerous shape, and a display example thereof. 21 to 25, the same or related parts as those in FIGS. 1, 2, and 18 are denoted by the same reference numerals.

 [0114] This verification process recognizes the relationship between the three-dimensional data representing the device and the human body related to the device, classifies the human part and the risk to that part, and displays this on the three-dimensional screen. It includes a process for expanding and displaying. The verification process 2 (Fig. 1), database 8 (Fig. 7), etc. are also used in this verification process. In this case, the tool model and the human body model are referred from the storage area of the work area information in the database 8, and the human hand, foot, face and the like are referred to in the human body model.

 [0115] At the start of this processing, a three-dimensional model representing the device is taken in (step S41), and the shape of the outer surface and the like of the device is recognized (step S42). Based on the recognition of this shape, the dangerous shape is extracted (step S43), the affected part of the dangerous shape is classified (step S44), and the dangerous shape is displayed on the display device 38 (step S44). Step S45).

 In this case, as shown in FIG. 22, a plurality of protrusions 116 on the outer surface of the device model 98 are recognized, and the display screen 39 of the display device 38 displays the device model 98, the human body model 100, and the device model. A protrusion 116 recognized as a dangerous shape is displayed on the Dell 98, and the dangerous shape mark 118 is displayed. In this case, the device model 98 displays an operation jig 120 operated by the human body model 100.

 Further, as shown in FIG. 23, for the device model 98, the operation jig 120 is enlarged and displayed on the screen 39 of the display device 38 as another image, and the protrusion on the upper surface of the operation jig 120 is displayed. 122 is recognized as a dangerous shape, and a dangerous shape mark 124 representing the dangerous shape is displayed together with the hand 64 of the human body model 100. In this case, since the hand 64 touches the protrusion 122, it is recognized as a dangerous area and a dangerous shape.

In addition, as shown in FIG. 24, the human body model 100 is displayed for the other device model 98 as shown in FIG. 24, and in the vicinity of the foot 126 of the human body model 100, as shown in FIG. The protrusion 128 that may touch the foot 126 is recognized as a dangerous shape, and a dangerous shape mark 130 indicating the dangerous shape is displayed. That is, the dangerous shape mark 130 interferes. Displays the area.

 [0119] The display device 38 has a dangerous shape mark 118 for the dangerous part and the dangerous part.

 (FIG. 22), danger shape mark 124 (FIG. 23), and danger shape mark 130 (FIG. 25) are displayed in different colored displays, for example, in red to distinguish them from the safe parts of the device model 98.

 [Other Embodiments]

 [0121] In the above embodiment, the verification of the dangerous part of the device and the dangerous part of the person with respect to the person directly involved with the device has been described, but the interference caused by the movement of other workers and the A configuration may be adopted in which the distance between workers is verified, and the verification information is used for design data, arrangement, and change of the device. In FIG. 26, the display screen 39 of the display device 38 displays the interference caused by the movement of other workers, that is, the human trajectory 132, with respect to the device model 98 and the human body model 100. In other words, it is possible to verify by the interference area between the person and the person only by the interference between the person and the device.

 [0122] As described above, the most preferred embodiment of the present invention has been described. However, the present invention is not limited to the above description, but is described in the claims or disclosed in the specification. It goes without saying that various modifications and changes can be made by those skilled in the art based on the gist of the present invention, and such modifications and changes are included in the scope of the present invention.

 Industrial applicability

[0123] The present invention provides work verification for each work process such as assembly work, dismantling work, maintenance work, normal work, etc. of various devices such as mechanical devices. The situation can be done at the device design stage, etc., which contributes to improving the safety of workers.

Claims

The scope of the claims

 [1] In a verification device that verifies the work of people involved with the device,

 A processing unit for extracting a dangerous part of the device for the person from information representing the device and information of a person related to the device;

 An output unit for outputting information representing the dangerous place;

 The verification apparatus characterized by including.

 [2] In the verification device according to claim 1,

 The processing unit extracts the dangerous part of the person affected by the device,

 The verification apparatus according to claim 1, wherein the output unit includes outputting information representing the dangerous part.

 [3] In the verification device according to claim 1,

 The processing unit determines a danger level of the dangerous place,

 The verification apparatus according to claim 1, wherein the output unit includes outputting information representing the danger level determined by the processing unit.

[4] In the verification device according to claim 1,

 The processing unit determines the form of the dangerous place,

 The verification device characterized in that the output unit includes outputting information representing the form determined by the processing unit.

[5] In the verification device according to claim 1,

 The processing unit determines a distance between the dangerous place and the person,

 The output device includes outputting information indicating the distance determined by the processing unit.

[6] In the verification device according to claim 1,

 2. The verification apparatus according to claim 1, wherein the dangerous part includes a physical or chemical danger and includes a place that is directly or indirectly dangerous to the person.

[7] In the verification device according to claim 2,

 The verification apparatus according to claim 1, wherein the dangerous part includes a human head, torso, hand, and foot.

[8] In the work area, verify the state of interference between the equipment placed in the work area and the worker. In the verification device

 First storage means for storing human body position and Z or shape information corresponding to the worker;

 Second storage means for storing information on the arrangement position and Z or shape of the apparatus in the work area;

 Using the information stored in the first storage means and the information stored in the second storage means, an interference state between the worker and the device in the work in the work area of the worker A verification unit for verifying,

 An output unit that outputs a result of verification by the verification unit so that an interference state can be discriminated.

[9] A verification method to verify the work of people involved with the device! In a hurry

 Extracting a risk location of the device for the person from information representing the device and information about a person associated with the device;

 Outputting information representing the dangerous place;

 The verification method characterized by including.

[10] In the verification method according to claim 9,

 Extracting the person's risk site affected by the device;

 Outputting information representing the dangerous part;

 The verification method characterized by including.

[11] In the verification method according to claim 9,

 Determining a danger level of the danger location;

 Outputting information representing the determined danger level;

 The verification method characterized by including.

[12] In the verification method according to claim 9,

 Determining the form of the dangerous location;

 Outputting information representing the determined form;

 The verification method characterized by including.

[13] In the verification method according to claim 9, Determining a distance between the dangerous location and the person;

 Outputting information representing the determined distance;

 The verification method characterized by including.

 [14] In the verification method according to claim 9,

 The verification method according to claim 1, wherein the dangerous part includes a physical or chemical danger and includes a place that is directly or indirectly dangerous to the person.

[15] In the verification method according to claim 10,

 The verification method according to claim 1, wherein the dangerous part includes a human head, torso, hand, and foot.

[16] A verification method for verifying the status of equipment and workers placed in the work area!

 Determining the positional relationship between the worker and the device using information on the human body position and Z or shape in the work area and information on the device arrangement position and Z or shape in the work area;

 A step of verifying a position that is dangerous to the human body as a result of the determination in the determination step;

 An output step for outputting the dangerous position verified in the verification step in a discriminable form;

 A verification method characterized by comprising:

[17] A verification program for verifying the work of a person related to the device using a computer, the step of extracting a dangerous part of the device for the person from information representing the device and information of a person related to the device When,

 Outputting information representing the dangerous spot;

 A verification program comprising:

[18] In the verification program according to claim 17,

 Extracting the person's risk site affected by the device;

 Outputting information representing the dangerous part;

 A verification program comprising:

[19] In the verification program according to claim 17,

Determining a danger level of the danger location; Outputting information representing the determined danger level;

 A verification program comprising:

 [20] In the verification program according to claim 17,

 Determining the form of the dangerous spot;

 Outputting information representing the determined form;

 A verification program comprising:

[21] In the verification program according to claim 17,

 Determining a distance between the dangerous location and the person;

 Outputting the determined distance;

 A verification program comprising:

[22] In the verification program according to claim 17,

 The verification program includes a physical or chemical danger and includes a place that is directly or indirectly dangerous to the person.

[23] In the verification program according to claim 18,

 The verification program according to claim 1, wherein the dangerous part includes a human head, a torso, a hand, and a foot.