WO2007101121B1 - Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones - Google Patents

Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones

Info

Publication number
WO2007101121B1
WO2007101121B1 PCT/US2007/062743 US2007062743W WO2007101121B1 WO 2007101121 B1 WO2007101121 B1 WO 2007101121B1 US 2007062743 W US2007062743 W US 2007062743W WO 2007101121 B1 WO2007101121 B1 WO 2007101121B1
Authority
WO
WIPO (PCT)
Prior art keywords
sensors
original
distance
component
hazardous
Prior art date
Application number
PCT/US2007/062743
Other languages
French (fr)
Other versions
WO2007101121A2 (en
WO2007101121A3 (en
Inventor
Richard Galera
James E Dogul
George E Rollins
Derek W Jones
George K Schuster
Suresh R Nair
Ray C Delcher
Original Assignee
Rockwell Automation Tech Inc
Richard Galera
James E Dogul
George E Rollins
Derek W Jones
George K Schuster
Suresh R Nair
Ray C Delcher
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rockwell Automation Tech Inc, Richard Galera, James E Dogul, George E Rollins, Derek W Jones, George K Schuster, Suresh R Nair, Ray C Delcher filed Critical Rockwell Automation Tech Inc
Publication of WO2007101121A2 publication Critical patent/WO2007101121A2/en
Publication of WO2007101121A3 publication Critical patent/WO2007101121A3/en
Publication of WO2007101121B1 publication Critical patent/WO2007101121B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact

Abstract

The claimed subject matter provides industrial automation systems and/or methods that evaluate a proximity to potential hazards. A plurality of sensors can provide redundant detected data. Additionally, a proximity evaluation component can evaluate the detected data, determine a location of at least one of a person and an object, and identify a distance from the location to one or more hazardous zones in a monitored region.

Claims

AMENDED CLAIMS received by the International Bureau on 29 December 2007 (29.12.2007)
1. (Currently Amended) An industrial automation system that evaluates proximity to potential hazards, comprising: a plurality of sensors that provide redundant detected data; aftd a proximity evaluation component that evaluates the detected data, determines a location of at least one of a person and an object, and identifies a distance from the location to one or more hazardous zones in a monitored region; and a safety logic component that utilizes the distance from the location to the one or more hazardous zones to yield a corresponding response, comprising: a weighting component that weights distance related information based upon a likelihood of accurate measurement related to each of the plurality of sensors: a combination component that aggregates distance related Information associated with the plurality of sensors: and at) optimization component that generates a voting configuration that the safety logic component employs to generate the corresponding response based upon distance related information from the plurality of sensors.
2. (Original) The system of claim 1 , the plurality of sensors provide redundancy by utilizing overlapping sensing ranges.
3. (Original) The system of claim 1, the plurality of sensors includes one or more of thermal energy sensors, electromagnetic sensors, mechanical sensors, chemical sensors, optical sensors, radiation sensors, acoustic sensors, and biological sensors.
4. (Original) The system of claim 1, the plurality of sensors continuously monitor the monitored region.
5. (Original) The system of claim I1 the plurality of sensors intermittently evaluate the monitored region utilizing at least one of a predetermined time interval and a varying time interval
6. (Original) The system of claim 1, the plurality of sensors monitor the monitored region upon an occurrence of an event.
32
7. (Original) The system of claim 1, the plurality of sensors each obtain a two- dimensional image associated with a corresponding section of the monitored region facing a respective one of the plurality of sensors.
8. (Original) The system of claim 1, the plurality of sensors each being associated with a separate, respective proximity evaluation component.
9. (Original) The system of claim 1, the proximity evaluation component continuously evaluates the location and the distance to the one or more hazardous zones.
10. (Original) The system of claim 1, the proximity evaluation component individually analyzes the detected data provided from each of the plurality of sensors.
11. (Original) The system of claim 1, the proximity evaluation component determines whether the distance from the location to any of the hazardous zones is below a threshold.
12. (Original) The system of claim 1, further comprising a location component that obtains the detected data and identifies at least one of a position, an orientation, and a change in location associated with the at least one of the person and the object.
13. (Original) The system of claim 12, the location component analyzes a two- dimensional image obtained from one of the plurality of sensors and identifies disparate shapes other than shapes associated with potential hazards.
14. (Original) The system of claim 1, further comprising a distance analysis component that evaluates a minimum distance between the location and the one or more hazardous zones.
15. (Original) The system of claim 1, further comprising a hazardous zone recognition component that identifies the one or more hazardous zones within the monitored region.
16. (Original) The system of claim 15, the hazardous zone recognition component identifies hazardous zones associated with at least one of a movement of machinery, a temperature, a pressure, and an amount of emitted radiation.
33
17. (Original) The system of claim 15, the hazardous zone recognition component further comprises a teaching component that evaluates potentially harmful characteristics associated with the monitored region prior to entry into the monitored region by the at least one of the person and the object.
18. (Original) The system of claim 17, the teaching component identifies the one or more hazardous zones by integrating detected motions associated with machinery into an envelope shape for each of the one or more hazardous zones.
19. (Original) The system of claim 15, the hazardous zone recognition component further comprises a definition component that interactively updates at least one of a shape and a contour of the one or more hazardous zones during operation.
20. (Cancelled)
21. (Currently Amended) The system of claim 1 [[2O]], the safety logic component modifies operation based at least in part upon the distance.
22. (Original) The system of claim 21, the modification being at least one of halting, slowing, speeding up, and restarting operation.
23. (Currently Amended) The system of claim 1 [[2O]], the safety logic component combines distance related information associated with the plurality of sensors.
24. (Cancelled)
25. (Cancelled)
26. (Cancelled)
27. (Original) The system of claim 1, further comprising a control component that causes a machine to modify operating parameters based at least in part upon the distance.
28. (Original) The system of claim 1, further comprising an alarm component that provides an alarm based at least in part upon the distance.
29. (Currently Amended) A method that facilitates determining a proximity to a potential hazard in an industrial automation environment, comprising: redundantly monitoring an industrial automation environment utilizing a plurality of sensors: identifying one or more hazardous zones existent during operation in the environment; determining a position of at least one of a person and an object in the environment;
UtIU evaluating a distance from the position of the at least one of the person and the object to the one or more hazardous zones; weighing distance related information based upon a likelihood of accurate measurement related to each of the plurality of sensors: aggregating the distance related information associated with the plurality of sensors: and generating a response based at least upon the aggregated distance related information.
30. (Original) The method of claim 29, further comprising obtaining a redundant sense of the environment by utilizing a plurality of sensors.
31. (Original) The method of claim 29, further comprising monitoring areas in the environment in which the at least one of the person and the object one or more of enters, exits, and traverses.
32. (Original) The method of claim 29, further comprising continuously monitoring the environment, continuously identifying the one or more hazardous zones, continuously determining the position, and continuously evaluating the distance.
33. (Original) The method of claim 29, further comprising: monitoring movement of machinery in the environment prior to entry by the at least one of the person and the object; and
35 identifying the one or more hazardous zones by analyzing the movement of the machinery to determine corresponding shapes and contours of the one or more hazardous zones.
34. (Original) The method of claim 29, further comprising updating at least one of a contour and a shape associated with at least one of the one or more identified hazardous zones during runtime.
35. (Original) The method of claim 29, further comprising: obtaining a two-dimensional image associated with a section of the environment facing each of a plurality of sensors; locating a shape other than the one or more hazardous zones; and determining a distance from the location of the shape to the one or more hazardous zones.
36. (Original) The method of claim 29, further comprising identifying a minimum distance from the position to the one or more hazardous zones.
37. (Original) The method of claim 29, further comprising separately evaluating detected data from a plurality of sensors to determine distance related information corresponding to each of the plurality of sensors.
38. (Original) The method of claim 29, further comprising at least one of modifying operation and providing an alarm based upon the determined distance being below a threshold value.
39. (Currently Amended) A system that determines a proximity to a potential hazard in an industrial automation environment, comprising: means for redundantly monitoring a region utilizing a plurality of sensors: means for identifying a hazardous zone in the region; means for determining a location of at least one of a person and an object in the region; means for evaluating a distance from the location of the at least one of the person and the object to the hazardous zone; a»4
36 means for weighing distance related information based upon a likelihood of accurate measurement related to each of the plurality of sensors: means for aggregating the distance related information associated with the plurality of sensors: and means for providing a response based at least in part upon the aggregated distance related information.
37
PCT/US2007/062743 2006-02-23 2007-02-23 Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones WO2007101121A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/360,730 2006-02-23
US11/360,730 US7522066B2 (en) 2006-02-23 2006-02-23 Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones

Publications (3)

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WO2007101121A2 WO2007101121A2 (en) 2007-09-07
WO2007101121A3 WO2007101121A3 (en) 2007-12-27
WO2007101121B1 true WO2007101121B1 (en) 2008-02-14

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PCT/US2007/062743 WO2007101121A2 (en) 2006-02-23 2007-02-23 Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones

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US (1) US7522066B2 (en)
WO (1) WO2007101121A2 (en)

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Publication number Publication date
US7522066B2 (en) 2009-04-21
WO2007101121A2 (en) 2007-09-07
US20070194944A1 (en) 2007-08-23
WO2007101121A3 (en) 2007-12-27

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