CN101400207B - Automatic light modulation system and method for brightness control - Google Patents

Abstract

An automatic light modulation system and a brightness control method are disclosed. The system includes at least one lighting device, at least one sensor, as well as a decision-making module. Each lighting device of this at least one lighting device is controllable, and has a remote control function. Every sensor of this at least one sensor for each sensor automatic configure to form a wireless sensing network and sense the corresponding light luminance value of the system environment, and use a wireless network to respond the corresponding light luminance value to the decision-making module. The decision-making module, based on system information, light luminance value responded by every sensor in the at least one sensor and requirements of users, dynamically controls every lighting device in the at least one lighting device to a corresponding suitable brightness.

Description

Automatic light control system and the method for controlling brightness

Technical field

The invention relates to a kind of automatic light control system and the method (Automatic Lighting Control System and Method) of controlling brightness.

Background technology

Can make people's eyes easy fatigue in the excessive or dark excessively environment, possibly cause inpairment of vision, therefore how suitable brightness being provided is considerable to avoid eye strain.In the lighting criteria that TaiWan, China is stipulated, standard different activity and the needed illumination of playground (illumination).For example, the illumination in the classroom is that 200-750 Lux (Lux), blackboard illumination are that 300-1500Lux, desk face are greater than 500Lux; Illumination 750-1500Lux in office, design office; In the lobby, the illumination in warehouse is 75-150Lux.

Will fill especially except the illumination of environment, distribution of light is also very important, is referred to as luminous intensity distribution (the luminous intensity distribution) uniformity (uniformity).Distribution of light is even more, can not cause the fatigue of eyes more.Therefore, how allocating general lighting equipment (for example, the fluorescent lamp of ceiling) and make the illumination that exposed installation is equipped with (for example, desk lamp, floor lamp etc.) with the part, also is an important topic so that appropriate ambient brightness to be provided.

In the document of TaiWan, China patent No. M284176, disclosed a kind of integration luminance sensor with (Light Emitting Diode LED) is the light fixture of light source with light-emitting diode.This LED lamp and transducer are wired connection.This light fixture uses luminance sensor sensing context, passes luminance signal back light fixture with wired mode, adjusts the brightness that corresponding electric current changes the LED light fixture.

In the document of U.S. Patent number 6548967, disclosed lamp light controlled network method and system (Universal Lighting Network Methods and Systems).Lighting device in this light network system all can be adjusted light, and the light unification is by control centre's keyholed back plate, and the center is via cable network transmitting control signal, and light fixture can carry various transducer, but also monitoring of environmental.Do not disclose control centre in this document and how to control light fixture, do not have exposure can adjust the indoor environment light source automatically yet and control light fixture with considering a plurality of users' demand.

Proc.of ACM Int ' l Conference on Embedded Networked Sensor Systems; 2005 papers delivered " Intelligent light control using sensor networks " in; Disclosed a kind of lamp light control system that utilizes the wireless sensor art designs, this system can consider user's the demand and the power saving problem of indoor environment.The user can go to define preference brightness according to the demand of oneself.This only considers a kind of Light Control Unit in disclosing, and its light control methods must be learnt the relation of all light regulation and control scales and illumination earlier.The possibility of result of regulation and control can't satisfy some user's demand.

Summary of the invention

The object of the present invention is to provide a kind of automatic light control system and the method for controlling brightness.

Be the realization above-mentioned purpose, automatic light control system provided by the invention, this system comprises:

At least one lighting device, the brightness of each lighting device of this at least one lighting device is regulatable, and has remote control function, said lighting device is divided into general lighting equipment and local lighting apparatus;

At least one transducer, each transducer automatic configuration of this at least one transducer forms wireless sensor network, and the corresponding light luminance value of sensing system environment; And

Decision-making module; This decision-making module receives the light luminance value of this each transducer sensing through wireless network; And, go each lighting device to the corresponding suitable brightness of this at least one lighting apparatus via Remote Dynamic decision pattern according to this corresponding light luminance value and user's demand of system information, this each transducer sensing;

This system information comprises each this lighting device information, each this lighting device weight proportion, the information of this system environments, movable brightness of illumination demand and each this lighting device brightness coverage of user to the light luminance value of each this transducer at least, and each lighting device is cut this system environments and the weighing factor ratio of each grid position in a plurality of virtual grids of forming is used to try to achieve the brightness value that present general lighting equipment is provided.

Described automatic light control system, wherein, this at least one lighting device is selected from any combination of general lighting equipment and localized lighting equipment.

Described automatic light control system, wherein, this Remote Dynamic decision pattern is the wherein a kind of media through wired media or wireless medium.

Described automatic light control system, wherein, this at least one transducer is selected from any combination of at least one fixed sensor and at least one Portable transducer.

Described automatic light control system, wherein, this at least one fixed sensor is positioned in a plurality of virtual grids that the system environments cutting is formed, with the light luminance value of the corresponding virtual grid of sensing.

Described automatic light control system, wherein, this wireless sensor network that is formed by configuration provides the function of locating the user.

Described automatic light control system, wherein, each transducer of this at least one transducer is with the wireless multipoint dancing mode, with data return to data collection server.

Described automatic light control system, wherein, the movable brightness of illumination demand of this user comprises stipulates the light intensity range of needs.

Described automatic light control system, wherein, each this Portable transducer comprises control unit, luminance sensor, demand input interface and wireless transport module;

This control unit receives the light luminance value that this luminance sensor senses, and the user goes the input demand through this demand input interface, and this control unit is passed to this decision-making module through this wireless transport module with the demand of this light luminance value and this input.

The method of automatic light control system provided by the invention control brightness can be applicable in the system environments that the user moves or demand when changing, and this method comprises:

Come the light luminance value of this system environments of sensing through at least one transducer, and be reported to decision-making module;

Each lighting apparatus is tried to achieve the brightness value that present general lighting equipment is provided to the weight proportion of the light luminance value of each transducer in the light luminance value of this system environments that senses based on transducer and this system environments, and said lighting apparatus is divided into general lighting equipment and local lighting apparatus;

Decide the required light luminance value that provides of at least one lighting apparatus in this system environments through this decision-making module; And

Each lighting apparatus of this at least one lighting apparatus of Remote Dynamic regulation and control.

The method of automatic light control system provided by the invention control brightness can be applicable in the system environments that the user moves or demand when changing, and this method comprises:

The light luminance value that stores a system information, user's information in advance and repay by at least one transducer, and determine the required light luminance value that provides of one or more general lighting equipment in this system environments;

Each general lighting equipment of this one or more general lighting equipment of dynamic regulation;

Determine the required light luminance value that provides of one or more localized lighting equipment in this system environments, and regulate and control wherein each this localized lighting equipment; And

Receive the light luminance value of each transducer of at least one transducer, and judge whether to reach corresponding door desired value,, then repeat above-mentioned institute in steps if do not reach this corresponding door desired value;

Wherein, This system information comprises each lighting apparatus information, each lighting apparatus weight proportion, the information of system environments, movable brightness of illumination demand and each this lighting apparatus brightness coverage of user to the light luminance value of each transducer at least, and each lighting apparatus is cut this system environments and the weighing factor ratio of each grid position in a plurality of virtual grids of forming is used to try to achieve the brightness value that present general lighting equipment is provided;

Said transducer comprises fixed sensor and Portable transducer.

The method of described automatic light control system control brightness; Wherein, Remove each this general lighting equipment of dynamic regulation and each this localized lighting equipment through a kind of binary search mode, said binary search mode further is: suppose that a regulatable meter full scale of lighting apparatus is 0-X, this lighting apparatus scale of regulation and control at present is x '; Make this lighting apparatus brighter like desire, then control value t is the numerical value between x ' and X; Otherwise, make this lighting apparatus darker like desire, then control value t be between 0 and x ' between numerical value.

The method of described automatic light control system control brightness wherein, satisfies every user's demand through the linear programming equation, and determines the light luminance value of the minimum essential requirement that can reach every user, and said linear programming equation is:

$D_{\mathrm{wd}}^l\left(i\right)\·R_i\≤{\stackrel{\‾}{R}}_i\·(S^f+{\mathrm{WA}}_{\mathrm{wd}})\≤D_{\mathrm{wd}}^u\left(i\right)\·R_i$ $\∀i\∈[1,n],$

Wherein,

With

Be respectively the bound of user i light intensity range of needs, R _iBe the matrix of k * 1 of a predefined,

For according to R _iIn the new matrix of k * k of going out of matrix element construction, S ^fBe the matrix of k * 1, be used for writing down the numerical value of fixed sensor institute sensing, W is the matrix of a k * m, A _WdBe the matrix of m * 1, be used for representing the illumination value of the required regulation and control of general lighting equipment.

The method of described automatic light control system control brightness, wherein, this linear programming equation is to find the solution through tasting the method for miscounting;

Wherein, this is tasted the method for miscounting and comprises:

Anticipate at least one user's in this linear programming equation light intensity range of needs;

Through algorithm, find the solution this linear programming equation; And

If this linear programming equation has do not separate, then relax the condition of each user's light intensity range of needs in this linear programming equation, and get back to this and find the solution the equational step of this linear programming.

According to the present invention; Decision package can be considered the multiple factor that influences the light luminance of environment; For example comprise each lighting apparatus to information such as movable brightness of illumination demand of the weight proportion of each transducer brightness value, system environmental information, user and lighting apparatus brightness coverages, decide the most suitable user's environment light source.Also every user's demand can be satisfied, and the light luminance value of the minimum essential requirement that can reach every user can be determined through the linear programming equation.

Description of drawings

Fig. 1 is the example schematic of an automatic light control system, and is consistent with some the enforcement example that discloses.

Fig. 2 is a work example of automatic light control system environment, and is consistent with some the enforcement example that discloses.

Fig. 3 is an example schematic calculating the brightness of regulation and control lighting apparatus.

Fig. 4 is an exemplary flowchart, and a kind of method of automatic light control system control brightness is described, and is consistent with some the enforcement example that discloses.

Fig. 5 is the general lighting equipment of the required adjustment of comings and goings of storage in the system information and the brightness demand of localized lighting equipment, and an example of brightness coverage.

Fig. 6 is an exemplary flowchart, and a kind of method of controlling brightness in the key diagram 4 is consistent with some the enforcement example that discloses.

Fig. 7 is an exemplary flowchart of tasting the method for miscounting, and is consistent with some the enforcement example that discloses.

The situation that Fig. 8 A example explanation user light intensity range of needs is separated less than occuring simultaneously, causing equation not have takes place.

The light intensity range of needs that user's demand is regulated and control is relaxed in the explanation of Fig. 8 B example.

Fig. 9 is the example schematic that the binary search mode removes lighting apparatus.

Figure 10 is the sketch map of an exemplary miniature Portable transducer.

Primary clustering symbol description in the accompanying drawing:

100 automatic light control systems

The 111-11N lighting device

13 decision-making modules

14 system informations

15 wireless networks

The 121-12N transducer

200 system environmentss

201 users

203 decision-making modules

205 Data acquisition, servers

G ₁-G ₂₅Grid

L ₁, L ₂General lighting equipment

W ₁General lighting equipment L ₁Weight proportion

W ₂General lighting equipment L ₂Weight proportion

401 come the light luminance value of this system environments of sensing through at least one transducer, and are reported to a decision-making module

402 decide the required light luminance value that provides of at least one lighting apparatus in this system environments through this decision-making module

Each lighting apparatus of this at least one lighting apparatus of 403 Remote Dynamic regulation and control

The 601 prior light luminance values that store a system information, user's information and repay by at least one transducer, and determine the required light luminance value that provides of one or more general lighting equipment in this system environments

Each general lighting equipment of this one or more general lighting equipment of 602 dynamic regulations

The required light luminance value that provides of one or more localized lighting equipment in 603 these system environmentss of decision, and regulate and control wherein each this localized lighting equipment

604 receive the light luminance value of each transducer of this at least one transducer

605 judge whether to reach corresponding target threshold value

701 anticipate at least one user's in the equation light intensity range of needs

702 through algorithm, solving equation formula

703 relax the condition of each user's in the equation light intensity range of needs

U ₁, U ₂The user

The regulatable meter full scale of 0-X lighting device

The scale that x ' lighting device is present

The t control value

1001 control units

1002 luminance sensors

1003 demand input interfaces

1004 wireless transport modules

1005 display modules

Embodiment

The detailed description and the claim scope that cooperate attached drawings, embodiment, will on address other purpose of the present invention and advantage and be specified in after.

Fig. 1 is the example schematic of an automatic light control system, and is consistent with some the enforcement example that discloses.With reference to figure 1, automatic light control system 100 can comprise at least one lighting device 111-11N, at least one transducer 121-12N and decision-making module 13.The brightness of each lighting device among the lighting device 111-11N all is regulatable, and has remote control function.Each transducer automatic configuration among the transducer 121-12N forms wireless sensor network, and the corresponding light luminance value of sensing system environment, utilizes wireless network 15 that this corresponding light luminance value is reported to decision-making module 13.Decision-making module 13 is according to light luminance value and user's demand of each the transducer repayment among system information 14, the transducer 121-12N; Each lighting device of dynamic regulation lighting device 111-11N to corresponding suitable brightness lets the user experience the appropriate environments light source.

Decision-making module 13 can remove each lighting device of lighting apparatus 111-11N via Remote Dynamic decision pattern.For example, in the long-range brightness that comes each lighting device of remote control lighting apparatus 111-11N through wired media (like cable network) or wireless medium (like wireless network).

System information 14 can be stored in decision-making module 13 in advance.This system information 14 can comprise that each lighting device information, each lighting device are to information such as movable brightness of illumination demand of weight proportion, system environmental information, the user of each transducer brightness value and lighting apparatus brightness coverages.The movable brightness of illumination demand of user can be with reference to the lighting criteria of announcing, for example the lighting criteria announced of TaiWan, China.The movable brightness of illumination demand of user for example comprises stipulates the light intensity range of needs.

In the present embodiment, lighting device can be divided into two types.One type is general lighting equipment (general lighting device), for example, and fluorescent lamp, floor lamp etc.Another kind of is localized lighting equipment (local lighting device), for example, and desk lamp, desk lamp etc.General lighting equipment can be used to illuminate integrated environment, and localized lighting equipment can be used to satisfy the lighting demand of specific position.Transducer 121-12N also can comprise fixed (fixed) transducer and Portable (portable) transducer.

Fixed sensor can be positioned in a plurality of virtual grids that the system environments cutting is formed, with the light luminance value of the corresponding virtual grid of sensing.For example, can fixed sensor be embedded in small-sized furniture or house ornament, and fixed placement is in indoor environment.The light luminance Value Data of each fixed sensor sensing can be represented the brightness in a standard zone.Fixed sensor also can periodically be repaid brightness value to decision-making module 13.The Portable transducer can be embedded in as on glasses, bookmark, the mobile phone.The volume of Portable transducer is easy to carry about with one for a short time, also can be movable according to the user activities such as (for example, study) sleeps let the user import the brightness demand, and detected light line strength data.

The wireless sensor network that is formed by configuration can provide the function of locating the user.The location technology of this wireless sensor network can be located user's position, can let decision-making module 13 judge according to this positioning result which position the user is in.Decision-making module also can be regulated and control suitable indoor environment brightness according to user's activity, and the process of regulation and control also can be included interactional situation between a plurality of users in consideration.

Fig. 2 is a work example (working example) of automatic light control system environment, and is consistent with some the enforcement example that discloses.With reference to the work example of figure 2, the lighting device in the system environments has general lighting equipment (as: fluorescent lamp) and localized lighting equipment (as: desk lamp).Decision-making module 203 can be a remote server (remote server) or computer.System environments 200 is cut into 25 virtual grids (virtual grid) G ₁-G ₂₅, have fixed sensor in each virtual grid, but the zonal ray intensity data in each each virtual grid of fixed sensor sensing, and can be periodically with light intensity data return to the decision-making module 203 of sensing.The Portable transducer that the user carries; Except can through wireless network with the light intensity data return arround the user to decision-making module; Also can be through the location technology of wireless sensor network, locate and judge which virtual grid the user is in.For example, user 201 Portable transducer is on one's body informed decision-making module through location technology, and this user 201 is positioned at virtual grid G ₂₅

The wireless sensor network that can be formed through fixed sensor and Portable transducer is reported to data collection server (sink) 205 with data with wireless multipoint (multihop) mode of jumping earlier.Data collection server 205 is again with this data return to decision-making module 203.

The illumination of general lighting equipment may influence the zone of a plurality of virtual grids, for example is positioned at central grid G ₁₃Fluorescent lamp L ₁May influence virtual grid G ₇, G ₈, G ₉, G ₁₂, G ₁₃, G ₁₄, G ₁₇, G ₁₈, G ₁₉The numerical value of interior fixed sensor institute sensing.Fluorescent lamp L ₂May influence virtual grid G ₁₆, G ₁₇, G ₂₁, G ₂₂The numerical value of interior fixed sensor institute sensing.Owing to light is along with distance decays, therefore can build when putting in system, learn general lighting equipment and localized lighting equipment influence degree (weight proportion) earlier to grid inner sensor brightness value.Suppose that each fixation of sensor is identical with the vertical range (S) of ceiling, for example, certain general lighting apparatus is to virtual grid G _jBrightness weighing factor ratio be 0.7 o'clock, the representative at virtual grid G _jIn the brightness value of transducer institute sensing be 0.7 times an of transducer is measured under the general lighting equipment brightness value.The mentioned in the present embodiment brightness that certain general lighting apparatus provided be under this general lighting equipment and vertical range at a distance of the brightness value at S place.

According to brightness decay experiment, no matter the present illumination control value of lighting apparatus why, and the light attenuation degree is all linear relationship.Therefore, in the present embodiment, can with each lighting apparatus to the weighing factor proportional recording of each grid position in a matrix W.Utilize this matrix W to try to achieve the brightness value that present general lighting equipment is provided.Suppose the known residing position of lighting apparatus as each, and utilize the information of present position to take out the corresponding row of m bar (row), come construction one matrix W ' by matrix W.The transducer brightness value of general lighting equipment present position then is recorded in the matrix

; The brightness value that general lighting equipment provides representes that with variable

relation of the brightness value that then transducer detected and the brightness value weight proportion of general lighting equipment can be described below:

Wherein,

represents the matrix of k * 1; K is the virtual grid number, is used for the numerical value of fixed sensor institute sensing in the register system; W ' represents the matrix of a k * m, and m is the number of general lighting equipment, is used for writing down the influence degree of general lighting equipment to virtual grid;

is the matrix of m * 1, is used for writing down the illumination value of present general lighting equipment.

With the weight proportion relation of the brightness value of the brightness value of this sensor detecting and general lighting equipment, Fig. 3 is an example schematic calculating the brightness of regulation and control lighting apparatus.With reference to the example of figure 3, virtual grid G ₁₃Interior general lighting equipment (fluorescent lamp) L ₁, for arround the weighing factor ratio of grid write down respectively as follows: virtual grid G ₁₃The weighing factor ratio be W ₁=1; Virtual grid G ₈, G ₁₂, G ₁₈, G ₁₄The weighing factor ratio be W ₁=0.6; Virtual grid G ₇, G ₉, G ₁₇, G ₁₉The weighing factor ratio be W ₁=0.4.General lighting equipment (fluorescent lamp) L ₂To arround the weighing factor ratio of grid be respectively: virtual grid G ₁₆, G ₁₇, G ₂₁, G ₂₂The weighing factor ratio be W ₂=0.8.When the user is positioned at virtual grid G ₁₇In, and the brightness of need of work is 520Lux, in other words, and virtual grid G ₁₇The interior brightness value that transducer sensed is required to be 520Lux.

As general lighting equipment L ₁When opening, virtual grid G ₁₃The brightness value that interior fixed sensor detects is 500Lux, with l ₁=500 expressions.And to virtual grid G ₁₇Influential general lighting equipment is L ₁, L ₂, then decision-making module 203 is regulated and control general lighting equipment L ₂Illumination value l ₂Can pass through l ₁=500 and 0.4l ₁+ 0.8l ₂=520 simple simultaneous equations is tried to achieve l ₁=500 and l ₂=400.

Therefore, through wireless network, decision-making module 303 adjustable general lighting equipment L ₂Illumination value l ₂To 400Lux, so, virtual grid G ₁₇The interior brightness value that fixed sensor detected is 520Lux, meets user's demand.If as grid G ₁₇When the influencing of natural daylight (daylight) arranged, virtual grid G then ₁₇The interior value that fixed sensor detected then can exceed 520Lux, and this moment, decision-making module 203 can downgrade general lighting equipment L ₂Illumination value l ₂, to reach desired value 520Lux.

Fig. 4 is an exemplary flowchart, and a kind of method of automatic light control system control brightness is described, and is consistent with some the enforcement example that discloses.The method can be applicable in the system environments that the user moves or demand when changing.With reference to the example flow process of figure 4, come the light luminance value of this system environments of sensing through at least one transducer, and be reported to a decision-making module, shown in step 401.Decide the required light luminance value that provides of at least one lighting apparatus in this system environments through this decision-making module, shown in step 402.But each lighting apparatus of this this at least one lighting apparatus of decision-making module Remote Dynamic regulation and control is shown in step 403.Decision-making module can be with reference to the system information of prior foundation and storage, the target threshold value of decision regulation and control lighting apparatus.

Fig. 5 is the general lighting equipment of the required adjustment of comings and goings of storage in the system information and the brightness demand of localized lighting equipment, and an example of brightness coverage.In the example of Fig. 5, the activity that stores in the system information can comprise reading, typewrite, see TV, activity such as have a dinner.The brightness demand of the general lighting equipment of required adjustment, for example reading is 300Lux to 500Lux.The brightness demand of the localized lighting equipment of required adjustment, for example typewriting is 900Lux to 1000Lux.The brightness coverage for example sees that TV is 7 virtual grids of user's periphery.

Fig. 6 is an exemplary flowchart, and a kind of method of controlling brightness in the key diagram 4 is consistent with some the enforcement example that discloses.This sample method can be applicable in the system environments that the user moves or demand when changing.This sample method can require localized lighting according to user's demand, strengthens the illumination of user's working face.Localized lighting equipment can provide a certain user to use.

When user in this system environments moves or demand when changing, at least one sensing (for example fixed sensor or Portable transducer) reaches decision-making module with movable through wireless network with the user position through the wireless network location technology.Example flow process with reference to figure 6; Decision-making module is stocking system information, user's information and by the light luminance value of at least one transducer repayment in advance; And determine the required light luminance value that provides of one or more general lighting equipment in this system environments, shown in step 601.But each general lighting equipment of this one or more general lighting equipment of decision-making module dynamic regulation is shown in step 602.

Decision-making module can determine the required light luminance value that provides of one or more localized lighting equipment in this system environments, and regulates and control wherein each this localized lighting equipment, shown in step 603.Decision-making module receives the light luminance value of each transducer of this at least one transducer, shown in step 604.And judge whether to reach corresponding target threshold value, shown in step 605.If do not reach this corresponding target threshold value, then repeat above-mentioned institute in steps.In other words, if do not reach the target threshold value, then get back to step 601, decision-making module is regulated and control general lighting equipment and localized lighting equipment once more respectively, till reaching the target threshold value.

Adaptive (adaptive) decision making algorithm that decision-making module uses can be respectively made the decision-making of regulation and control to general lighting equipment and localized lighting equipment.Decision-making module is according to the system information of setting up in advance; Defining every user i is an interval value for the light intensity range of needs of general lighting equipment:

from above-mentioned brightness decay experiment; The regulation and control of general lighting equipment may be defined to a linear programming formula, below are the parameters of two predefineds:

X _m＝[1?1…1] _1×m， (A)

R _i＝[r _i(G ₁)?r _i(G ₂)…r _i(G _k)] ^T (B)

Wherein, X _mBe the constant matrices of a 1 * m, m is the number of general lighting equipment.R _iBe the matrix of k * 1, k is the grid number, and whether be used for writing down user i influences virtual grid G ₁-G _kIllumination numerical value.If user i influences virtual grid Gj, then the element in j matrix is recorded as 1.Above-mentioned parameter (B) but also construction go out a new matrix:

${\stackrel{\‾}{R}}_i=\left[\begin{array}{cccc}{r}_i\left(G_1\right)& 0& \·\·\·& 0\\ 0& r_i\left(G_2\right)& \·\·\·& 0\\ \·& \·& & \\ \·& \·& \·\·\·& 0\\ \·& \·& & \\ 0& 0& 0& r_i\left(G_k\right)\end{array}\right]---\left(C\right)$

With reference to above-mentioned variable (A), (B), (C), the purpose that general lighting equipment is regulated and control does, under the condition that satisfies user's demand, also can reduce power consumption and reach energy-conservation purpose, promptly satisfies following equation (1):

$\begin{array}{cc}\min & X_m(A_{\mathrm{wd}}+L_{\mathrm{wd}}^c)\end{array}---\left(1\right)$

Wherein, A _WdRepresent the matrix of m * 1, be used for representing the illumination value of the required regulation and control of general lighting equipment;

Represent the matrix of m * 1, be used for writing down the illumination value of present general lighting equipment.The meaning of equation (1) is that the brightness value that lighting apparatus provided can reach the situation of user's minimum essential requirement, in other words, can reach the function of power saving exactly after will making that the illumination value of the required regulation and control of general lighting equipment adds present illumination value.

Equation (2) is the linear programming equation; The light value that this linear programming equation solves must satisfy every user's demand, and general lighting brightness that equipment provides must be in user i light intensity range of needs ; Equation (3) is the light emitting region of restriction general lighting equipment.

$D_{\mathrm{wd}}^l\left(i\right)\·R_i\≤{\stackrel{\‾}{R}}_i\·(S^f+{\mathrm{WA}}_{\mathrm{wd}})\≤D_{\mathrm{wd}}^u\left(i\right)\·R_i$ $\∀i\∈[1,n]---\left(2\right)$

$0\≤A_{\mathrm{wd}}+L_{\mathrm{wd}}^c\≤L_{\mathrm{wd}}^{\max }---\left(3\right)$

Wherein, S ^fRepresent the matrix of k * 1, be used for the numerical value of fixed sensor institute sensing in the register system; W represents the matrix of a k * m, and m is the number of general lighting equipment, and k is the grid number, is used for writing down the influence degree of general lighting equipment to virtual grid;

Be the matrix of m * 1, be used for writing down the highest luminance value of general lighting equipment.

Likewise; Regulation and control for localized lighting equipment; But every user i of predefined is the brightness s that the Portable transducer that utilizes user i to carry measures illuminated area for the range of needs

of the light intensity of localized lighting equipment to the localized lighting presentation mode of user i, by the brightness of decision-making module regulation and control localized lighting equipment at least greater than

and provide this brightness to user i.Behind the control value of all local lighting apparatus of decision-making module decision, the result is stored in A _LdIn the matrix.A _LdRepresent the matrix of m ' * 1, be used for representing the illumination value of the required regulation and control of localized lighting device; M ' represents the number of localized lighting equipment.

Therefore, decision-making module is according to the desired value A of above-mentioned adaptive decision making algorithm to the regulation and control of general lighting equipment _Wd, and the desired value A of localized lighting equipment regulation and control _LdMake the decision-making of regulation and control respectively.For example, certain user needs the local luminance range of needs to be [700,800], and the brightness value A of fixed sensor sensing general lighting equipment _Wd=300Lux, then decision-making module only need be regulated and control localized lighting equipment to A _Ld=700-300=400Lux gets final product, and at this moment, the local luminance that beginning use person Portable transducer on one's body senses is 700Lux, can reach user's minimum brightness demand.

Adaptive decision making algorithm for the general lighting equipment of equation (2); Not necessarily have and separate; For example, the present action of certain user is to read (it is bright that this user requires light to beat), and certain contiguous user is then in sleep (this user requires light to dim); Two users' light intensity range of needs is not occured simultaneously, and the situation that causes equation (2) nothing to separate takes place.Therefore, take place for avoiding above-mentioned situation of not separating, the equation of linear regression formula that can be directed against equation (2) is carried out a kind of method of miscounting of tasting, exemplary flowchart as shown in Figure 7.

With reference to the example flow process of figure 7, in step 701, anticipate at least one user's in the equation (2) light intensity range of needs.This anticipates, and for example comprises to each virtual grid, whether the demand that inspection influences the user of this virtual grid has common factor.If do not occur simultaneously, for example can revise users' in the subclass fewer in number R _i, let amended R _iDo not influence this virtual grid.

In step 702, through an algorithm, solving equation formula (2).This algorithm can use arbitrary equational algorithm of linear programming of finding the solution.Do not separate if still have, can relax the condition of each user's light intensity range of needs in the equation (2), shown in step 703.And get back to step 702.If separate, then finish this flow process.

In step 703; Soften terms; For example can with the upper bound

of equation (2) with lower bound

is modified to respectively with

wherein; α is a variable parameter, can be used to adjust the accuracy and the convergence rate of light regulation and control.

Following example is the condition that user's light intensity range of needs in the equation (2) is relaxed in explanation, reaches the demand that satisfies every user.The situation that the example explanation user light intensity range of needs of Fig. 8 A is separated less than occuring simultaneously, causing equation not have takes place.With reference to figure 8A, be positioned at virtual grid G ₁In user U ₁The brightness range of needs be [450,500], virtual grid G ₂In user U ₂The brightness range of needs be [150,250].General lighting equipment L ₁For virtual grid G ₁The weighing factor ratio be W ₁=1; And for virtual grid G ₂The weighing factor ratio be W ₁=0.6.Virtual grid G ₁, G ₂In natural daylight (daylight) influence that receives 100Lux illumination is arranged.

If will satisfy user U ₁The brightness demand, general lighting equipment L ₁Regulate and control illumination to 450Lux.Yet, as general lighting equipment L ₁When adjusting to 450Lux, virtual grid G ₂The interior illumination that will receive 450*0.6=270Lux, this 270Lux illumination surpasses user U ₂The peak (250) of brightness range of needs.Under this situation, after the pretreatment steps of completing steps 701, when the algorithm of execution in step 702 is found the solution, will be not have the situation of separating.

Therefore, the step 703 in the example flow process of Fig. 7 can be relaxed the light intensity range of needs that user's demand is regulated and control, and the light intensity range of needs that user's demand is regulated and control is relaxed in the explanation of Fig. 8 B example.With reference to the example of figure 8B, can be with user U ₁With U ₂The top/bottom latitude of brightness demand respectively relax 50Lux.Therefore, user U ₁The brightness range of needs be modified to [400,550]; User U ₂The brightness demand be modified scope for [100,300].At this moment, as general lighting equipment L ₁Satisfy user U ₁Minimum requirements the time, the illumination of 400Lux only need be provided.And virtual grid G ₂Also receive only the illumination of 400*0.6=240Lux, therefore also can satisfy user U simultaneously ₂Range of needs.So, equation (2) just can be found out one group of feasible separating (feasible solution).

By above-mentioned adaptive decision making algorithm, can find out that all general lighting equipment and localized lighting equipment all need many (or few) that the illumination of the desired value of regulation and control is provided.

Step 601 and step 603 in the example flow process of the control brightness of review Fig. 6 have been regulated and control the desired value A that general lighting equipment is regulated and control respectively _WdDesired value A with the regulation and control of localized lighting equipment _LdAccording to desired value A _WdWith A _Ld, decision-making module can be made the decision-making of regulation and control.For example, decision-making module can remove lighting apparatus to target threshold value through a kind of binary search (Binary Search) mode.The adjustment scale of lighting apparatus and the relation of light intensity also can be learnt by prior measurement mode.

Fig. 9 is the example schematic that the binary search mode removes lighting apparatus.With reference to the example of figure 9, suppose that a regulatable meter full scale of lighting device is 0-X, and the scale that this lighting device is regulated and control at present is x '.If desire makes this lighting device brighter, then the control value t that determines of decision-making module is the numerical value between x ' and X; Otherwise, if desire makes this lighting device darker, then this t value be between 0 and x ' between numerical value.

Decision-making module produces new control value x ' behind the regulation and control lighting apparatus, and by transducer feedback brightness value, decision-making module utilizes the brightness value of weight proportion and transducer repayment, checks and learns whether reach the target threshold value.If do not reach this target threshold value, decision-making module will be judged once more need lighten or dim this lighting device, determines another new t value according to this again, and this new t value then is between new control value x ' and X, or between 0 and new x ' between.

User's Portable transducer on one's body also can manually change state by the user except when the user moves, can on-site brightness value being transmitted back to the decision-making module.For example, when the user changes into sleep state from the state of studying, can be changed by the manual delivery status of Portable transducer and order to decision-making module, the brightness of being controlled lighting apparatus by decision-making module automatically meets user's demand.This Portable transducer can have multiple structure to go to realize that Figure 10 is the block schematic diagram of an exemplary miniature Portable transducer.

With reference to the example of Figure 10, this Portable transducer can comprise control unit (control unit) 1001, luminance sensor (lighting sensor) 1002, demand input interface (demand input interface) 1003 and wireless transport module (wireless transmission module) 1004.Control unit 1003 receives the light luminance value that luminance sensor 1002 senses.The user goes the input demand through demand input interface 1003.Control unit 1003 is passed to decision-making module through wireless transport module 1004 with user's demand of this light luminance value and input, lets the adjustable lighting device of decision-making module and reaches user's demand.This Portable transducer also can comprise display module 1005, and for example LCD (LCD) shows light brightness value or relevant information etc.

The above is merely enforcement example of the present invention, when not limiting the scope that the present invention implements according to this.The equalization of promptly being done with the present invention spirit generally changes and modifies, and all should still belong in the scope that claim of the present invention contains.

Claims (14)

1. automatic light control system, this system comprises:

At least one lighting device, the brightness of each lighting device of this at least one lighting device is regulatable, and has remote control function, said lighting device is divided into general lighting equipment and local lighting apparatus;

At least one transducer, each transducer automatic configuration of this at least one transducer forms wireless sensor network, and the corresponding light luminance value of sensing system environment; And

Decision-making module; This decision-making module receives the light luminance value of this each transducer sensing through wireless network; And, go each lighting device to the corresponding suitable brightness of this at least one lighting apparatus via Remote Dynamic decision pattern according to this corresponding light luminance value and user's demand of system information, this each transducer sensing;

This system information comprises each this lighting device information, each this lighting device weight proportion, the information of this system environments, movable brightness of illumination demand and each this lighting device brightness coverage of user to the light luminance value of each this transducer at least, and each lighting device is cut this system environments and the weighing factor ratio of each grid position in a plurality of virtual grids of forming is used to try to achieve the brightness value that present general lighting equipment is provided.

2. automatic light control system as claimed in claim 1, wherein, this at least one lighting device is selected from any combination of general lighting equipment and localized lighting equipment.

3. automatic light control system as claimed in claim 1, wherein, this Remote Dynamic decision pattern is the wherein a kind of media through wired media or wireless medium.

4. automatic light control system as claimed in claim 1, wherein, this at least one transducer is selected from any combination of at least one fixed sensor and at least one Portable transducer.

5. automatic light control system as claimed in claim 4, wherein, this at least one fixed sensor is positioned in a plurality of virtual grids that the system environments cutting is formed, with the light luminance value of the corresponding virtual grid of sensing.

6. automatic light control system as claimed in claim 1, wherein, this wireless sensor network that is formed by configuration provides the function of locating the user.

7. automatic light control system as claimed in claim 1, wherein, each transducer of this at least one transducer is with the wireless multipoint dancing mode, with data return to data collection server.

8. automatic light control system as claimed in claim 1, wherein, the movable brightness of illumination demand of this user comprises stipulates the light intensity range of needs.

9. automatic light control system as claimed in claim 4, wherein, each this Portable transducer comprises control unit, luminance sensor, demand input interface and wireless transport module;

This control unit receives the light luminance value that this luminance sensor senses, and the user goes the input demand through this demand input interface, and this control unit is passed to this decision-making module through this wireless transport module with the demand of this light luminance value and this input.

10. the method for automatic light control system control brightness can be applicable in the system environments that the user moves or demand when changing, and this method comprises:

Come the light luminance value of this system environments of sensing through at least one transducer, and be reported to decision-making module;

Each lighting apparatus is tried to achieve the brightness value that present general lighting equipment is provided to the weight proportion of the light luminance value of each transducer in the light luminance value of this system environments that senses based on transducer and this system environments, and said lighting apparatus is divided into general lighting equipment and local lighting apparatus;

Decide the required light luminance value that provides of at least one lighting apparatus in this system environments through this decision-making module; And

Each lighting apparatus of this at least one lighting apparatus of Remote Dynamic regulation and control.

11. the method for automatic light control system control brightness can be applicable in the system environments that the user moves or demand when changing, this method comprises:

Prior stocking system information, user's information and the light luminance value of repaying by at least one transducer, and determine the required light luminance value that provides of one or more general lighting equipment in this system environments;

Each general lighting equipment of this one or more general lighting equipment of dynamic regulation;

Determine the required light luminance value that provides of one or more localized lighting equipment in this system environments, and regulate and control wherein each this localized lighting equipment; And

Receive the light luminance value of each transducer of at least one transducer, and judge whether to reach corresponding door desired value,, then repeat above-mentioned institute in steps if do not reach this corresponding door desired value;

Wherein, This system information comprises each lighting apparatus information, each lighting apparatus weight proportion, the information of system environments, movable brightness of illumination demand and each this lighting apparatus brightness coverage of user to the light luminance value of each transducer at least, and each lighting apparatus is cut this system environments and the weighing factor ratio of each grid position in a plurality of virtual grids of forming is used to try to achieve the brightness value that present general lighting equipment is provided;

Said transducer comprises fixed sensor and Portable transducer.

12. the method for automatic light control system control brightness as claimed in claim 11; Wherein, Remove each this general lighting equipment of dynamic regulation and each this localized lighting equipment through a kind of binary search mode, said binary search mode further is: suppose that a regulatable meter full scale of lighting apparatus is 0-X, this lighting apparatus scale of regulation and control at present is x '; Make this lighting apparatus brighter like desire, then control value t is the numerical value between x ' and X; Otherwise, make this lighting apparatus darker like desire, then control value t be between 0 and x ' between numerical value.

13. the method for automatic light control system control brightness as claimed in claim 11; Wherein, Satisfy every user's demand through the linear programming equation, and determine the light luminance value of the minimum essential requirement that can reach every user, said linear programming equation is:

$D_{\mathrm{wd}}^l\left(i\right)\·R_i\≤{\stackrel{\‾}{R}}_i\·(S^f+{\mathrm{WA}}_{\mathrm{wd}})\≤D_{\mathrm{wd}}^u\left(i\right)\·R_i$ $\∀i\∈[1,n],$

Wherein,

With

Be respectively the bound of user i light intensity range of needs, R _iBe the matrix of k * 1 of a predefined,

For according to R _iIn the new matrix of k * k of going out of matrix element construction, S ^fBe the matrix of k * 1, be used for writing down the numerical value of fixed sensor institute sensing, W is the matrix of a k * m, A _WdBe the matrix of m * 1, be used for representing the illumination value of the required regulation and control of general lighting equipment, k is cut the number of these a plurality of virtual grids of a plurality of virtual grids that form for this system environments, and m is the number of general lighting equipment.

14. the method for automatic light control system control brightness as claimed in claim 13, wherein, this linear programming equation is to find the solution through tasting the method for miscounting;

Wherein, this is tasted the method for miscounting and comprises:

Anticipate at least one user's in this linear programming equation light intensity range of needs;

Through algorithm, find the solution this linear programming equation; And

If this linear programming equation has do not separate, then relax the condition of each user's light intensity range of needs in this linear programming equation, and get back to this and find the solution the equational step of this linear programming.

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