CN102098836B - Lighting control device and lighting control system - Google Patents
Lighting control device and lighting control system Download PDFInfo
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- CN102098836B CN102098836B CN201010569051.8A CN201010569051A CN102098836B CN 102098836 B CN102098836 B CN 102098836B CN 201010569051 A CN201010569051 A CN 201010569051A CN 102098836 B CN102098836 B CN 102098836B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
Disclosed is a lighting control device, a lighting control system and a lighting up control device, which achieve both human detection and brightness control by means of a single shooting part. When a person exists in the region, the lighting control device (2) of the lighting control system (1) controls the lighting up of a lighting load (3). In an image sensor (4), the shooting part (41) shoots the region by means of a shooting member arranged with a plurality of light-receiving members. An amplification part (43) amplifies the light-receiving value of each light-receiving member. An adjusting part (44) adjusts gain, thereby the average value of all output values of the amplification part under a first mode becomes a constant value, and the gain is fixed to a standard value under a second mode. An image processing part of the lighting control device detects whether a person exists in the region or not based on the distribution of the output value of the amplification part. When the lighting up device (8) detects that a person exists in the region under the first mode, the lighting up state of the lighting load changes. When the lighting up device (8) conducts dimming control on the lighting load under the second mode, the average value of the output value of the amplification part is contained in a target scope.
Description
Technical field
If the present invention relates to, a kind ofly in predefined region, there is people to exist, to irradiating the lighting load in described region the light a lamp illumination control apparatus of controlling, the Lighting Control Assembly that comprises this illumination control apparatus and for the lighting control device of this illumination control apparatus.
background technology
In the past, the multiple imageing sensor of having applied ccd video camera or the cmos camera sale that is developed and goes on the market.The people detection of using described imageing sensor to detect the existence of the people in camera watch region is employed expansion in a lot of fields.
As the application examples of controlling for throwing light on, known have in the situation that utilizes the photographed images of being made a video recording by portrait transducer to detect in camera watch region have people to exist, the Lighting Control Assembly that lighting load is lit a lamp.Imageing sensor is for example arranged at (with reference to Fig. 2 (b)) on ceiling surface.At this moment camera watch region becomes from described ceiling surface region vertically downward.
Described Lighting Control Assembly possesses imageing sensor, image processing part and lighting control section.Imageing sensor possesses image pickup part and transformation component.Image pickup part is the video camera of having applied the semiconductor camera elements such as CCD or CMOS.Transformation component will be transformed to numerical data from the analogue data of image pickup part output, and as view data, sends the numerical data of conversion to image processing part.
Image processing part, by certain photographed images (photographed images that in camera watch region, nobody exists) constantly image as a setting, is obtained the difference of brightness value (pixel value, concentration value) and generates difference image each pixel between current photographed images (hereinafter referred to as " present image ") and background image.Brightness value at all images between present image and background image does not have in vicissitudinous situation, and the brightness value of whole pixels of difference image is " 0 ".On the other hand, have people to exist in because of region, in the situation that the pixel that between present image and background image, brightness value changes exists, in difference image, the brightness value of several pixels is not " 0 ".Image processing part is not the size of the pixel detection total number of " 0 " and the set of continuous or adjacency etc. to brightness value in difference image, if these values have surpassed predefined threshold value, is judged to be in region and has people to exist.At this moment, the detection signal that represents to detect people's existence outputs to lighting control section from image processing part.
Receive the lighting control section of detection signal to the power supply of load open initial point lamp needs of throwing light on, or lighting load is carried out to brightness adjustment control to reach the lightness of regulation.
Described Lighting Control Assembly as mentioned above because be with region in there is phase interlock of people and system that lighting load is lit a lamp and controlled, so the people detection during light-off of lighting load is very important.But during the light-off of lighting load, in the less situation of light, it is darker that region becomes out of doors.That is, the numerical data of the analogue data of image pickup part output and transformation component conversion becomes small.Therefore, imageing sensor is to obtain brighter photographed images, also possesses enlarging section.Amplify described numerical data image data generating enlarging section.At this moment, enlarging section is by AGC (Auto Gain Control: automatic gain is controlled), adjustment gains (magnification ratio) thereby carries out suitable signal and amplify, so that the mean value of the brightness value of the whole pixels in the photographed images generating according to view data is kept to certain.
Therefore, described Lighting Control Assembly can always generate the photographed images of suitable lightness in the situation that utilizing imageing sensor people to be detected by the AGC of enlarging section, so even more also can detect accurately people in region.
But known and described Lighting Control Assembly is different, utilize imageing sensor to carry out the Lighting Control Assembly (for example, with reference to patent documentation 1) of the lightness of control area.In this Lighting Control Assembly, first set lightness desired value, so that become the lightness of user's hobby in region.Described lightness desired value is set to the average brightness value of whole pixels of the photographed images under the state that the outdoor light in entering camera watch region is blocked.After having set lightness desired value, when outdoor light is injected in camera watch region, because outdoor light makes to brighten in region, so that the average brightness value of photographed images becomes is larger than lightness desired value.At this moment, to the lighting load lighting control section of controlling of lighting a lamp, can carry out brightness adjustment control to lighting load, to reduce the light of lighting load, export until the average brightness value of photographed images reaches lightness desired value, at described average brightness value, reach the moment of lightness desired value, described average brightness value is maintained to lightness desired value.
According to the above description, Yi Bian described Lighting Control Assembly can utilize outdoor light energetically, Yi Bian control the light output of lighting load, so that camera watch region becomes the lightness of user's hobby.
Technical literature formerly:
Patent document 1:(Japan) JP 2009-238410 communique
But, utilize imageing sensor as above (image pickup part, enlarging section) to carry out the Lighting Control Assembly of people detection, form respectively with the Lighting Control Assembly that utilizes imageing sensor to control lightness, therefore when hope is carried out described people detection and lightness and controlled these two, need to arrange Lighting Control Assembly separately.That is, for a lighting load, need to install for the structure of people detection and carry out lightness control structure these two.Therefore, the shape of ligthing paraphernalia deforms, or the installation site of each structure or the structure of ligthing paraphernalia be restricted, and system configuration becomes complicated.
Summary of the invention
The present invention is in view of what time above, its object is, provides image pickup part that a kind of use is single to make people detection and lightness control the illumination control apparatus that can get both, the Lighting Control Assembly that comprises this illumination control apparatus and for the lighting control device of this illumination control apparatus.
The invention of the illumination control apparatus of the first scheme, if have people to exist in predefined region,, to the control of lighting a lamp of the lighting load in the described region of throwing light on, it is characterized in that, possess: image pickup part, is used the imaging apparatus of having arranged a plurality of photo detectors to make a video recording to described region; Enlarging section, to described a plurality of photo detectors amplified respectively by light value and as a plurality of output valves; Adjustment part, adjusts the gain of described enlarging section; Test section, detects according to the distribution of described a plurality of output valves in described region, whether someone exists; Lighting control device, to the control of lighting a lamp of described lighting load; Described lighting control device possesses the 2nd pattern that detects the 1st pattern that in described region, whether someone exists and control the lightness in described region, and has the function of described the 1st pattern of mutual switching and described the 2nd pattern; Under described the 1st pattern, described adjustment part adjusts described enlarging section so that the mean value of described output valve becomes certain value, and under described the 2nd pattern, described adjustment part is fixed as predefined fiducial value by described gain on the other hand; If detect in described region and have people to exist by described test section under described the 1st pattern, described lighting control device makes the state variation of lighting a lamp of described lighting load on the one hand, under described the 2nd pattern, described lighting load is carried out to brightness adjustment control on the other hand, so that the mean value of the described output valve of described enlarging section is contained in predefined target zone.
The invention of the illumination control apparatus of alternative plan, it is characterized in that, in the invention of the first scheme, described lighting control device carries out brightness adjustment control to described lighting load under described the 2nd pattern, so that take the mean value of the brightness value comprising in people's pixel coverage among the photographed images using described output valve as brightness value, is not contained in described target zone.
The invention of the Lighting Control Assembly of third party's case, is characterized in that, the lighting load that possesses the illumination control apparatus of the first scheme or alternative plan and irradiate described region.
The invention of the lighting control device of cubic case, for the illumination control apparatus of the first scheme or alternative plan.
The effect of invention is as follows:
According to first and third, the invention of cubic case, detect while having people to exist in region, can make on the one hand the state of lighting a lamp of lighting load change, on the other hand by the gain of enlarging section being fixed as to predefined fiducial value and controlling the lightness in described region, can with single image pickup part and people detection be realized in enlarging section and lightness is controlled these two.Thus, according to the invention of the first scheme, can seek the simplification of device.
According to the invention of alternative plan, while carrying out lightness control, owing to only having used the brightness value of not taking people's pixel coverage in photographed images, so can remove the pixel coverage that the change of brightness value is larger, therefore can improve the precision that lightness is controlled.
Accompanying drawing explanation
Fig. 1 is the block diagram of structure that the Lighting Control Assembly of embodiments of the present invention is shown.
Fig. 2 is the same Lighting Control Assembly, is (a) skeleton diagram that use state is shown, and is (b) figure that photographed images is shown.
Fig. 3 is the figure that the action of the enlarging section of the same Lighting Control Assembly is described.
Fig. 4 is the figure that the action of the image processing part of the same Lighting Control Assembly is described.
Fig. 5 is the flow chart that the action that is the same Lighting Control Assembly is shown.
Fig. 6 is the flow chart of action that the common control of the same Lighting Control Assembly is shown.
Fig. 7 is the flow chart that the action that the lightness of the same Lighting Control Assembly controls is shown.
Fig. 8 is the figure that the action of the lighting control device of the same Lighting Control Assembly is described.
Fig. 9 is the figure that the action of the lighting control device of the same Lighting Control Assembly is described.
Figure 10 is the figure that the action of the same Lighting Control Assembly is described.
Symbol description
1 Lighting Control Assembly
2 illumination control apparatus
3 lighting loads
4 imageing sensors
41 image pickup parts
43 enlarging sections
5 image processing parts
8 lighting control devices
Embodiment
Object of the present invention and feature, can understand by the explanation of the preferred embodiment after carrying out together with the accompanying drawing with following.
The Lighting Control Assembly 1 of embodiments of the present invention as shown in Figure 1, possesses illumination control apparatus 2 and lighting load 3.This Lighting Control Assembly 1 is arranged on ceiling surface C as shown in Fig. 2 (a).
Light-emitting diode) or fluorescent lamp etc. lighting load 3 is such as being LED (Light Emitting Diode:, light a lamp, and irradiate predefined region A by the electric power of being supplied with by AC power (not shown).In addition, as AC power, such as there being source power supply (civil power) of voltage 100V etc.
Illumination control apparatus 2 as shown in Figure 1, possesses imageing sensor 4, image processing part 5, storage part 6, light accepting part (acceptance division) 7 and lighting control device 8.If there is people B to exist in region A (with reference to Fig. 2), 2 pairs of lighting loads 3 of illumination control apparatus control of lighting a lamp.
Imageing sensor 4 possesses image pickup part 41, transformation component 42,43He adjustment part, enlarging section 44.Imageing sensor 4, by action described later, generates the photographed images of 30 left and right per second, and the view data of photographed images is carried out to data transmission to image processing part 5 at any time.
Image pickup part 41 is such as being the video camera that the imaging apparatus (semiconductor camera element) that uses charge coupled cell (CCD) or CMOS etc. to arrange a plurality of photo detectors is made a video recording to region A (with reference to Fig. 2).The light value that is subject to of each photo detector is the larger electric weight of the larger value of light quantity, and is the analogue value.
Transformation component 42 is transformed to numerical data by the light value that is subject to of each photo detector from analogue data.The numerical data that is subject to light value of each photo detector outputs to enlarging section 43 from transformation component 42.
Enlarging section 43 is for example ISP (Image Signal Processor: image-signal processor), will be transformed to amplified by light value and forming a plurality of output valves of digital value by transformation component 42.Output valve 43 outputs to image processing part 5 as the view data of photographed images from enlarging section.
Gain G, such as consisting of computer etc., under the 1st pattern described later, is adjusted by AGC, so that the mean value of whole output valves of enlarging section 43 becomes certain value in adjustment part 44.So-called gain G, be enlarging section 43 whole output valves mean value be all subject to the ratio of the mean value of light value.On the other hand, under the 2nd pattern described later, enlarging section 43 is fixed as predefined fiducial value by gain G.
In the Lighting Control Assembly 1 of present embodiment, because being contrasts bright load 3 control of lighting a lamp with people detection phase interlock, so the people detection during light-off of lighting load 3 is very important.But during the light-off of lighting load 3, in the less situation of light, region A is dimmed out of doors.That is, the light value that is respectively subject to from image pickup part 41 becomes small.At this, in the Lighting Control Assembly 1 of present embodiment, the in the situation that of the 1st pattern, adjustment part 44 utilizes AGC to adjust gain G, and enlarging section 43 will suitably be amplified by light value respectively, thereby can guarantee the lightness of photographed images.Therefore,, when image processing part 5 detects people B (with reference to Fig. 2 (a)) as described later, enlarging section 43 can provide to image processing part 5 view data of the photographed images of suitable lightness.
Fig. 3 illustrates the relation of lightness (average brightness value) D of gain G and the photographed images of enlarging section 43.For example current relation is made as to point * 3 of Fig. 3.In the variation because of outdoor light, the lightness D of photographed images is from D0 to D1, and in situation about changing to dimmed direction (point * 2 of Fig. 3), enlarging section 43 makes gain G slowly increase from current G1 by AGC.Thus, the lightness D of photographed images is slowly close to D0.In the moment (point * 3 of Fig. 3) that reaches the lightness D0 equal with point * 1, enlarging section 43 stops the increase of gain G, afterwards gain G is maintained to G2.
Image processing part 5 shown in Fig. 1 is obtained view data from the enlarging section 43 of imageing sensor 4, by the view data obtaining, comes whether have people B (with reference to Fig. 2 (a)) to exist in surveyed area A.As image processing part 5, the semiconductor device that use can highly be processed (such as DSP (Digital Signal Processor) or height image processor etc.).Image processing part 5 is equivalent to test section of the present invention.
Utilize Fig. 4 that the action of image processing part 5 is described.The view data of certain photographed images (photographed images that in the A of region, nobody B exists) the constantly as a setting view data of image P2 (with reference to Fig. 4 (b)) is stored in storage part 6.That is, by the photographed images of the state that in the A of region, really nobody B exists image P2 as a setting all the time.As storage part 6, such as using the volatibility mass storages such as DDRAM (Display Data RAM) etc.
If the view data as the present image P1 (with reference to Fig. 4 (a)) of up-to-date photographed images is sent to image processing part 5 from imageing sensor 4, image processing part 5 is obtained the difference of brightness value by each pixel and is generated difference image P3 (with reference to Fig. 4 (c)) between present image P1 and background image P2.Between present image P1 and background image P2, all (the brightness value of pixels does not almost have in vicissitudinous situation, the situation of the difference brightness value separately of whole pixels below setting), the brightness value of whole pixels of difference image P3 is set as " 0 ".On the other hand, have people B to exist in because of region A, thereby between present image P1 and background image P2, exist in the situation of the pixel that brightness value changes, the brightness value that has some pixels in difference image P3 is not " 0 ".Brightness value in 5 couples of difference image P3 of image processing part is not the image of " 0 ", detects total number and continuously or the size of the set of adjacency etc., if these values surpass predefined threshold value, in determinating area A, has people B to exist.At this moment, the detection signal of the existence of people B from image processing part 5 to lighting control device 8 output expressions, detected.
In addition,, as the establishing method of the background image P2 based on image processing part 5, also have other multiple.As general method, for example, there is image processing part 5 by the up-to-date photographed images method that image P2 upgrades by time series as a setting one by one.
Light accepting part 7 shown in Fig. 1 receives operation signal from remote control (hereinafter referred to as " remote control ") 9.Operation signal comprises the operation information relevant to content of operation remote control 9 being operated by user.As remote control 9, use suitably by the infrared remote controller of infrared ray operation signal, or the electric wave remote control by radio wave operation signal etc.
Lighting control device 8 consists of computer and lamp circuit, has the 2nd pattern that whether has the 1st pattern of people B and the lightness of control area A in surveyed area A, and has the function that the 1st pattern and the 2nd pattern are switched mutually.
Lighting control device 8 is under the 1st pattern, if receive people detection signal from image processing part 5, the power supply that lighting load 3 is started to light a lamp and needed, carries out brightness adjustment control etc. to reach the lightness of regulation to lighting load 3.
In addition, lighting control device 8, under the 2nd pattern, is obtained the information of the brightness value of each pixel in present image P1, and lighting load 3 is carried out to brightness adjustment control so that average brightness value is contained in predefined target zone.At this, lighting control device 8 is using the mean value of not taking the brightness value comprising in people's pixel coverage in present image P1 as average brightness value.The so-called pixel coverage of not taking people, refers in the difference image P3 of the difference as described present image P1 and background image P2, the scope of the pixel of brightness value below setting, and the difference of brightness value etc. is almost the scope of the pixel of " 0 ".
Further, lighting control device 8 needs the target zone of the lightness of setting regions A (with reference to Fig. 2).Therefore, lighting control device 8 has: common control model, conventionally move (people detection and lightness are controlled); And set model, the target zone of the lightness of setting regions A (with reference to Fig. 2).The setting of target zone need to be from common control mode switch to set model.As the triggering signal that is switched to set model, be set with the setting signal of one of operation signal from remote control 9.For target zone, in the situation that the irradiation by lighting load 3 realizes predefined lightness (being the lightness of the dimming ratio based on setting in the present embodiment) under the state that in the A of region, outdoor light is blocked, preset target zone so that the average brightness value of photographed images becomes the median of target zone.
In addition, the specified signal of one of remote control 9 operation signal, when light accepting part 7 receives described specified signal, carries out the adjusting of light output of lighting load 3 and the decision of the lightness of hobby by lighting control device.
Then, utilize Fig. 5 that the action of the Lighting Control Assembly 1 of present embodiment is described.First, Lighting Control Assembly 1 is supplied with to electric power (S1 of Fig. 5).If light accepting part 7 receives setting signal (S2) from remote control 9, Lighting Control Assembly 1 is transferred to set model (S3).Afterwards, under the state being blocked at the outdoor light to region A, the lightness information of user's hobby is input to light accepting part 7 (S4) from remote control 9.In the present embodiment, be made as under the state that light is blocked out of doors and input lightness information, but be not limited to this.That is, user also can be in the lightness information that has input hobby under the state of outdoor light.The lightness information (being dimming ratio the present embodiment) that lighting control device 8 receives from remote control 9 based on light accepting part 7, carries out brightness adjustment control (S5) to lighting load 3.At this moment, the average brightness value of the photographed images of region A is made as desired value Dt, target setting scope so that desired value Dt become median and store this target zone (S6).Afterwards, from set model, be switched to common control model (S7).On the other hand, in step S2, in the situation that light accepting part 7 does not receive setting signal from remote control 9, transfer to common control model (S7)
Then,, in the Lighting Control Assembly 1 of present embodiment, utilize Fig. 6 and Fig. 7 that the action of common control model is described.The Lighting Control Assembly 1 of present embodiment timesharing ground under common control model repeatedly carries out people detection (S11 of Fig. 6) and (S12) controlled in lightness.
As lightness, control, as shown in Figure 7, lighting control device 8 is obtained the information (S21 of Fig. 7) of the brightness value of whole pixels in photographed images.The average brightness value D and the desired value Dt (S22) that relatively according to the information of the brightness value of the whole pixels that obtain at step S21, obtain.If luminance difference | D-Dt| is ((1-σ) Dt≤D≤(1+ σ) Dt) below σ %, does not do any processing, finishes lightness and controls.
On the other hand, in luminance difference | D-Dt| is greater than σ %, and in the situation of D < Dt (being "Yes" in S23), lighting control device 8 is measured the light output (S24) that improves lighting load 3 in accordance with regulations.After having carried out the processing of step S24, carry out step S22.In luminance difference | D-Dt| is greater than σ %, and in the situation of D > Dt (being "No" in S23), amount reduces the light output (S25) of lighting load 3 in accordance with regulations.After having carried out the processing of step S25, carry out step S22.Until luminance difference | it is following that D-Dt| becomes σ %, continues step S22 to the processing of step S25, if luminance difference | and D-Dt| becomes below σ %, finishes lightness and controls.
By above-mentioned action, average brightness value D and desired value Dt can be adjusted to almost identical target zone, so the lightness that makes the lightness of region A approach the hobby of initial setting under the state of outdoor light can comprised.
For example, as shown in Fig. 8 (a), there is no under the environment of outdoor light, the lightness of region A to be made as the lightness of user's hobby, by storage average brightness value D at this moment, target setting value.In Fig. 8 (a), user the light output of lighting load 3 is set as all lighting a lamp for example 70%, average brightness value D is at this moment made as to desired value Dt.After target setting value Dt, from set model, switch to common control model.Afterwards, as shown in Fig. 8 (b), inject in the situation of outdoor light, region A brightens, and average brightness value D becomes D2 (D2 > Dt).At this moment, lighting control device 8 reduces the light output of lighting load 3 to reach the mode of desired value Dt, thereby reduces average brightness value D.Until average brightness value D becomes the light output that desired value Dt reduces lighting load 3, at average brightness value D, become the moment of desired value Dt, make the light stable output of lighting load 3.In the example of Fig. 8, the light output by making lighting load 3 from all light a lamp 70% be reduced to all light a lamp 50%, make average brightness value D reach desired value Dt.In addition, in the A of region, have in the situation of people B existence, adjust the light output (with reference to Fig. 8 (c)) of lighting load 3 so that reach desired value Dt except being judged as the average brightness value D of the pixel the pixel that people detected from D2.
According to the above description, as shown in Figure 9, even in the situation that light is injected out of doors, average brightness value D rises, the light that reduces lighting load 3 by ignition device 8 is exported, and average brightness value D is reduced.That is, the arrow as Fig. 9, moves to point * 10 from point * 11.
The Lighting Control Assembly 1 of present embodiment, carries out to timesharing as mentioned above people detection (the 1st pattern) and lightness and controls (the 2nd pattern).That is, after people detection, carry out lightness control.In addition,, if entered lightness control, but people do not detected,, after official hour, lighting control device 8 is turned off the light lighting load 3, proceeds people detection.
During lightness is controlled, use the image collection by the photographed images of people detection processing of carrying out before and the people B of extraction, measure the average brightness value of all images except being judged as the image that people detected, by this value and desired value comparison.Its result, reduces the light output of lighting load 3 as correcting process during higher than desired value, increase the light output of lighting load 3 during lower than desired value as correcting process.The example of Figure 10 for average brightness value β is carried out to the correction of setting δ.Carry out and revise when carrying out people detection at every turn, approach final desired value α (δ > 0 in the situation of β < α, δ < 0 in the situation of β > α).At this moment, desired value α is set to fixing permissible range as target zone, if average brightness value β is contained in target zone, finish to revise.
Above, according to present embodiment, detecting while having people B to exist in the A of region lights a lamp lighting load 3, on the other hand the gain of enlarging section 43 is fixed on to predefined fiducial value and detects the lightness of described region A, thereby can enough single imageing sensors 4 (image pickup part 41, enlarging section 43) realize people detection and lightness is controlled these two.Thus, according to present embodiment, can seek the simplification of illumination control apparatus 2.
In addition, according to present embodiment, lighting control device 8 is when carrying out lightness control, owing to only using the brightness value of not taking people's pixel coverage in present image P1, so can remove the pixel coverage that the change of brightness value is larger, improve the precision that lightness is controlled.
In addition, as modified embodiment of the present embodiment, lighting control device 8 is under the 2nd pattern, the average brightness value of use when brightness adjustment control is carried out in bright load 3 in contrast, can adopt the mean value of brightness value of whole pixels of present image P1, also can adopt the mean value of the brightness value of the pixel coverage (pixel coverage predetermining) that almost nobody exists.In addition, also can replace by the light intensity of region A the lightness information of user's hobby during set model.
The specific embodiment of the present invention of take is above illustrated as main, but also can within the scope of main points of the present invention and additional claim, in this technical field, be out of shape, change or revise, therefore aforesaid explanation and accompanying drawing are not to limit technological thought of the present invention, but explain the present invention by illustration.
Claims (3)
1. an illumination control apparatus, if having people to exist in predefined region,, to the control of lighting a lamp of the lighting load in the described region of throwing light on, is characterized in that possessing:
Image pickup part, is used the imaging apparatus of having arranged a plurality of photo detectors to make a video recording to described region;
Enlarging section, using described a plurality of photo detectors amplified respectively by light value and as a plurality of output valves;
Adjustment part, adjusts the gain of described enlarging section;
Test section, detects according to the distribution of described a plurality of output valves in described region, whether someone exists; With
Lighting control device, to the control of lighting a lamp of described lighting load;
Described lighting control device has the 2nd pattern that detects the 1st pattern that in described region, whether someone exists and control the lightness in described region when the light-off of described lighting load, and has the function of described the 1st pattern of mutual switching and described the 2nd pattern;
Under described the 1st pattern, described adjustment part adjusts described gain so that the mean value of described output valve becomes certain value, and under described the 2nd pattern, described adjustment part is fixed as predefined fiducial value by described gain on the other hand;
If detect in described region and have people to exist by described test section under described the 1st pattern, described lighting control device makes the state variation of lighting a lamp of described lighting load on the one hand, under described the 2nd pattern, described lighting load is carried out to brightness adjustment control on the other hand, so that the mean value of the described output valve of described enlarging section is contained in predefined target zone;
Under described the 1st pattern, in the situation that outdoor light has occurred to change during the light-off of described lighting load, described gain is adjusted so that the mean value of described output valve equates with before outdoor light variation in described adjustment part.
2. illumination control apparatus according to claim 1, is characterized in that,
Described lighting control device carries out brightness adjustment control to described lighting load under described the 2nd pattern, so that take the mean value of the brightness value comprising in people's pixel coverage among the photographed images using described output valve as brightness value, is not contained in described target zone.
3. a Lighting Control Assembly, is characterized in that, possesses:
Claim 1 or 2 illumination control apparatus of recording; With
Irradiate the lighting load in described region.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009268109A JP5406683B2 (en) | 2009-11-25 | 2009-11-25 | Lighting control device, lighting control system, and lighting control device |
| JP268109/2009 | 2009-11-25 |
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| Publication Number | Publication Date |
|---|---|
| CN102098836A CN102098836A (en) | 2011-06-15 |
| CN102098836B true CN102098836B (en) | 2014-11-12 |
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| CN201010569051.8A Active CN102098836B (en) | 2009-11-25 | 2010-11-24 | Lighting control device and lighting control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8659230B2 (en) * | 2011-06-16 | 2014-02-25 | Panasonic Corporation | Illumination control system |
| JP2013008460A (en) | 2011-06-22 | 2013-01-10 | Panasonic Corp | Lighting device |
| EP2748950B1 (en) * | 2011-10-14 | 2018-11-28 | Philips Lighting Holding B.V. | Coded light detector |
| JP5872306B2 (en) * | 2012-01-30 | 2016-03-01 | 株式会社東芝 | Information processing apparatus, information processing method, and program |
| JP2014007074A (en) | 2012-06-25 | 2014-01-16 | Panasonic Corp | Illumination system |
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| CN102098836A (en) | 2011-06-15 |
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