Light control glass control system

Abstract

To prevent a frequency switching control as well as realizing a switch control intended by a user in the case where an ON / OFF control of a light control glass is performed on the basis of a brightness.SOLUTION: A light control glass system includes: comparison means of comparing a brightness measurement result and a brightness threshold value; determination means of determining that a light control glass part has to be changed to an opacity state in the case where the light control glass part is in a transparent state, and a measurement result is larger than the brightness threshold value, and determines that the light control glass part has to be changed to a transparent state in the case where the light control glass part is in the opacity, and the measurement result is smaller than the brightness threshold value; timer means of starting a counting of a predetermined time in the case of determining that the state has to be changed; and notification means of notifying a determination result by the determination means at a counting termination time by the timer means to the light control glass part. The timer means resets the counting time of the predetermined time when the determination that the state has to be changed by the determination means is performed.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] This relates to technology for controlling the transparency / opacity of light-controlling glass. [Background technology]

[0002] Transparent glass and windows installed in buildings provide good visibility both inside and outside, making the room feel spacious. On the other hand, people have a need to avoid being seen by others, and there are times when transparent glass and windows make people feel that their privacy is not protected. On the other hand, curtains and blinds inherit the advantages of transparent glass and windows and solve their disadvantages. However, curtains and blinds also have drawbacks, such as taking up space and creating dead space, and being difficult to open and close.

[0003] Under such circumstances, light-controlling films (light-controlling glass) that can be used together with glass and windows by turning them transparent or opaque by ON / OFF control have been developed. For example, Patent Document 1 proposes a light-controlling control device that includes an acquisition unit that acquires sensor information obtained from a plurality of sensors present in a building, and a control unit that controls the transmittance of a light-controlling film installed in an opening of the building based on the sensor information acquired by the acquisition unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-136006 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above conventional technology, when changing the transparency or opacity of the window glass based on the brightness outside, there is a problem that unintended switching operation occurs due to light blocking caused by the passing of a person or a change in brightness caused by special factors such as car headlights, etc. In addition, in the above conventional technology, such switching operation occurs frequently, which leads to a shortened lifespan of related equipment.

[0006] In view of the above problems, the present invention aims to provide a light control glass control system that realizes switching control as intended by the user when controlling the ON / OFF of light control glass based on brightness, and prevents the shortening of the lifespan of related equipment due to frequent switching control. [Means for solving the problem]

[0007] One embodiment of the disclosed light control glass control system is a light control glass control system including a light control glass section formed by sandwiching a light control film, which changes state between transparent and opaque by ON / OFF control, between plate glass, a sensor section installed near the light control glass section and measuring the brightness near the light control glass section, and a controller section which performs ON / OFF control on the light control glass section based on the measurement result of the sensor section, wherein the controller section includes a comparison means which compares the measurement result with a brightness threshold value for switching the light control glass section between transparent and opaque, and a control section which controls the light control glass section to turn ON / OFF when the light control glass section is in a transparent state and the measurement result is greater than the brightness threshold value. the light control glass section is provided with a determination means for determining that the light control glass section should change state to opaque when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value, and for determining that the light control glass section should change state to transparent when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value; a timer means for starting to measure a predetermined time when it is determined that the state should change; and a notification means for notifying the light control glass section of the determination result by the determination means at the end of the time measurement by the timer means, wherein the timer means resets the measurement of the predetermined time when it is determined by the determination means that the state should change during the time measurement. Effect of the Invention

[0008] The disclosed light control glass control system realizes switching control as intended by the user when controlling the ON / OFF of light control glass based on brightness, while preventing the shortening of the lifespan of related equipment due to frequent switching control. [Brief description of the drawings]

[0009] [Figure 1] 1 is a diagram illustrating an overall outline of a light control glass control system according to an embodiment of the present invention. [Diagram 2] 1 is a diagram illustrating an overview of a light control glass portion according to an embodiment of the present invention. FIG. [Diagram 3] FIG. 2 is a diagram illustrating an overview of a sensor unit according to the present embodiment. [Figure 4] FIG. 1 is a functional block diagram of a light control glass control system according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a diagram for explaining an outline of the operation of the light control glass control system according to the present embodiment. [Figure 6] 4 is a diagram for explaining the processes of a determination unit, a timer unit, and a notification unit according to the present embodiment. FIG. [Figure 7] 4 is a diagram for explaining the processes of a determination unit, a timer unit, and a notification unit according to the present embodiment. FIG. [Figure 8] 4 is a diagram for explaining the processes of a determination unit, a timer unit, and a notification unit according to the present embodiment. FIG. [Figure 9] 4 is a diagram for explaining the processes of a determination unit, a timer unit, and a notification unit according to the present embodiment. FIG. [Figure 10] FIG. 2 is a diagram illustrating an example of a hardware configuration of a controller unit according to the present embodiment. [Figure 11] 5 is a flowchart showing a flow of an example of processing by the light control glass control system according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings, an embodiment of the present invention will be described. (Operation principle of the light control glass control system according to the present embodiment)

[0011] The operation principle of a light control glass control system (hereinafter, simply referred to as "the system") 100 according to the present embodiment will be described with reference to Figures 1 to 9. Figure 1 is a diagram for explaining an overall outline of the system 100, Figures 2 and 3 are schematic diagrams of a light control glass unit 110 and a sensor unit 120, which are components of the system 100, respectively, and Figure 4 is a functional block diagram of the system 100.

[0012] As shown in FIG. 1, the present system 100 has a light control glass unit 110, a sensor unit 120, and a controller unit 130, with the light control glass unit 110 and the controller unit 130 being connected, and the sensor unit 120 and the controller unit 130 being connected.

[0013] As shown in FIG. 2, the light control glass unit 110 is configured by sandwiching a light control film 210, which is switched between a transparent state and an opaque state by ON / OFF control of an electric signal, between plate glasses 220. The light control film 210 only needs to be switched between transparent and opaque by ON / OFF control of an electric signal, and which of the ON / OFF states is transparent or opaque may be either, and is not limited. The light control film 210 is a mechanism for switching between transparent and opaque based on an ON / OFF command from the controller unit 130, as described later. As shown in FIG. 5, when the brightness is below a reference value 270 (dark), the light control glass unit 110 is in a transparent state 230 that transmits light from the outside, and when the brightness is above the reference value 270 (bright), the light control glass unit 110 is in an opaque state 240 that blocks light from the outside.

[0014] 1 and 3, the sensor unit 120 is installed near the light control glass unit 110, measures the brightness near the light control glass unit 110, and notifies the controller unit 130 of the measurement result 260. Therefore, the sensor unit 120 is connected to the controller unit 130. The sensor unit 120 has a sensor surface 250 for measuring the brightness.

[0015] When the sensor unit 120 is installed on a vertical surface (such as a wall surface), it is preferable that the brightness sensor surface 250 faces diagonally upward. This is to efficiently receive sunlight and to control the system 100 in accordance with the user's physical sensation. The brightness measured by the sensor unit 120 is, for example, illuminance (lux), luminous intensity (candela), luminous flux (lumen), etc., but is not limited to these. The controller section 130 performs ON / OFF control for the light control glass section 110 based on the measurement result 260 of the sensor section 120 . As shown in FIG. 4, the controller section 130 includes a comparison means 140, a determination means 150, a timer means 160, and a notification means 170.

[0016] The comparison means 140 compares the measurement result 260 with a brightness threshold 270 that is a reference for the brightness at which the light control glass section 110 is switched between transparent and opaque. The units of the measurement result 260 and the brightness threshold 270 may be any information that represents brightness, such as an electrical signal (voltage, etc.) that represents the measurement result measured by the brightness sensor surface 250, and the units are not particularly limited.

[0017] When the light control glass unit 110 is in the transparent state 230 and the measurement result 260 is greater than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the opaque state 240. In addition, when the light control glass unit 110 is in the opaque state 240 and the measurement result 260 is less than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the transparent state 230.

[0018] The timer means 160 starts measuring a predetermined time when the determination means 150 determines that the light control glass section 110 should change to the opaque state 240. The timer means 160 also starts measuring a predetermined time when the determination means 150 determines that the light control glass section 110 should change to the transparent state 230.

[0019] Furthermore, when the determination means 150 determines that the light control glass section 110 should change to the opaque state 240 during the timer means 160's process of counting the predetermined time, the timer means 160 resets the counting of the predetermined time. That is, in such a case, the timer means 160 resets the timer counting the predetermined time to zero (initial value) at the timing of the determination by the determination means 150, and starts counting the predetermined time from zero (initial value) again.

[0020] Furthermore, when the determination means 150 determines that the light control glass section 110 should change to the transparent state 230 during the timer means 160's process of counting the predetermined time, the timer means 160 resets 280 the counting of the predetermined time. That is, in such a case, the timer means 160 returns the timer counting the predetermined time to zero (initial value) at the timing of the determination by the determination means 150, and starts counting the predetermined time from zero (initial value) again.

[0021] When the timer means 160 has finished timing a predetermined time, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the end of the timing process. Here, the determination result by the determination means 150 is a determination that the light control glass unit 110 should change to the transparent state 230, or a determination that the light control glass unit 110 should change to the opaque state 240.

[0022] At this time, the light control glass unit 110 changes state from the transparent state 230 to the opaque state 240, or from the opaque state 240 to the transparent state 230, according to the judgment result of the judgment means 150 notified by the notification means 170. In this way, the light control glass unit 110 (light control film 210) switches between transparent and opaque based on the ON / OFF command from the controller unit 130.

[0023] The processing of the determination means 150, the timer means 160, and the notification means 170 when the light control glass unit 110 maintains the transparent state 230 will be described with reference to Fig. 6. Fig. 6 is a diagram showing an example of processing when the light control glass unit 110 maintains the transparent state 230.

[0024] As shown in FIG. 6, the light control glass section 110 is initially in a transparent state 230, but when the determination means 150 determines that the light control glass section 110 should change to an opaque state 240, the timer means 160 starts counting a predetermined time.

[0025] Furthermore, when the determination means 150 again determines that the light control glass section 110 should change to the opaque state 240 during the counting process of the predetermined time by the timer means 160, the timer means 160 resets the counting of the predetermined time.

[0026] Then, when the timer means 160 finishes the time measurement process, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the time the time measurement process ends (determination that the light control glass unit 110 does not need to change its state). In this case, the transparent state 230 is maintained in the light control glass unit 110.

[0027] In this way, the present system 100 introduces a retrigger process using the timer means 160. This enables the present system 100 to reduce the occurrence of unnecessary temporary transparent / opaque switching operations that occur when the light control glass unit 110 is in the transparent state 230 at night or the like and strong light such as from an automobile headlight is irradiated onto the sensor unit 120.

[0028] The processing of the determination means 150, the timer means 160, and the notification means 170 when the state changes from the transparent state 230 to the opaque state 240 will be described with reference to Fig. 7. Fig. 7 is a diagram showing an example of processing when the light control glass unit 110 changes from the transparent state 230 to the opaque state 240.

[0029] As shown in FIG. 7, the light control glass section 110 is initially in a transparent state 230, but when the determination means 150 determines that the light control glass section 110 should change to an opaque state 240, the timer means 160 starts counting a predetermined time.

[0030] Then, when the timer means 160 finishes the time measurement process, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the time the time measurement process ends (determination that the light control glass unit 110 should change to the opaque state 240). In this case, the light control glass unit 110 changes state from the transparent state 230 to the opaque state 240.

[0031] In this way, by setting the timer time of the timer means 160 appropriately (shortening), the system 100 can achieve the originally intended state change operation of the light control glass section 110 other than that caused by special or temporary factors, without causing the user to feel uncomfortable.

[0032] The processing of the determination means 150, the timer means 160, and the notification means 170 when the light control glass unit 110 maintains the opaque state 240 will be described with reference to Fig. 8. Fig. 8 is a diagram showing an example of processing when the light control glass unit 110 maintains the opaque state 240.

[0033] As shown in FIG. 8, the light control glass section 110 is initially in an opaque state 240, but when the determination means 150 determines that the light control glass section 110 should change to a transparent state 230, the timer means 160 starts counting a predetermined time.

[0034] Furthermore, when the determination means 150 determines again that the light control glass section 110 should change to the transparent state 230 during the counting process of the predetermined time by the timer means 160, the timer means 160 resets the counting of the predetermined time.

[0035] Then, when the timer means 160 finishes the time measurement process, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the time the time measurement process ends (determination that the light control glass unit 110 does not need to change its state). In this case, the opaque state 240 is maintained in the light control glass unit 110.

[0036] In this way, the present system 100 introduces a retrigger process using the timer means 160. This enables the present system 100 to reduce the occurrence of unnecessary temporary transparent / opaque switching operations caused by a person or animal passing in front of the sensor unit 120 in bright daylight and temporarily blocking the light.

[0037] The processing of the determination means 150, the timer means 160, and the notification means 170 when the light control glass unit 110 changes state from the opaque state 240 to the transparent state 230 will be described with reference to Fig. 9. Fig. 8 is a diagram showing an example of processing when the light control glass unit 110 changes state from the opaque state 240 to the transparent state 230.

[0038] As shown in FIG. 9, the light control glass section 110 is initially in an opaque state 240, but when the determination means 150 determines that the light control glass section 110 should change to a transparent state 230, the timer means 160 starts counting a predetermined time.

[0039] Then, when the timer means 160 finishes the time measurement process, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the time the time measurement process ends (determination that the light control glass unit 110 should change to the transparent state 230). In this case, the light control glass unit 110 changes state from the opaque state 240 to the transparent state 230.

[0040] In this way, by setting the timer time of the timer means 160 appropriately (shortening), the system 100 can achieve the originally intended state change operation of the light control glass section 110 other than that caused by special or temporary factors, without causing the user to feel uncomfortable.

[0041] Based on the above operating principle, when controlling the ON / OFF of light control glass based on the brightness outside (sunlight), for example, the system 100 realizes switching control as intended by the user and prevents the shortening of the lifespan of related equipment due to frequent switching control.

[0042] Based on the above-described operating principle, the present system 100 prevents switching operations of the light control glass unit 110 based on changes in brightness due to special or temporary factors, and prevents frequent switching operations.

[0043] Based on the above-described operating principle, the present system 100 realizes control of the light control glass unit 110 as intended by the user by avoiding switching operations of the light control glass unit 110 due to special or temporary factors as much as possible.

[0044] Based on the operating principle described above, the present system 100 prevents a shortening of the lifespan of the light control film 210 and peripheral devices by avoiding switching operations and frequent switching operations of the light control glass unit 110 due to special or temporary factors as much as possible. (Hardware configuration of the controller according to this embodiment)

[0045] An example of the hardware configuration of the controller unit 130 will be described with reference to Fig. 10. Fig. 10 is a diagram showing an example of the hardware configuration of the controller unit 130. As shown in Fig. 10, the controller unit 130 has a CPU (Central Processing Unit) 410, a ROM (Read-Only Memory) 420, a RAM (Random Access Memory) 430, an auxiliary storage device 440, a communication I / F 450, an input device 460, a display device 470, and a recording medium I / F 480.

[0046] The CPU 410 is a device that executes a program stored in the ROM 420, performs arithmetic processing on data loaded into the RAM 430 in accordance with instructions from the program, and controls the entire controller unit 130. The ROM 420 stores the programs and data to be executed by the CPU 410. When the CPU 410 executes a program stored in the ROM 420, the programs and data to be executed are loaded into the RAM 430, and the RAM 430 temporarily holds the arithmetic data during the calculation.

[0047] The auxiliary storage device 440 is a device that stores the OS (Operating System) which is basic software, the application program according to the present embodiment, and the like together with related data. The auxiliary storage device 440 is, for example, a HDD (Hard Disk Drive) or a flash memory.

[0048] The communication I / F 450 is an interface for connecting to a communication network such as a wired or wireless LAN (Local Area Network) or the Internet, and for transmitting and receiving data to and from other devices 110 and 120 that provide a communication function.

[0049] The input device 460 is a device such as a keyboard for inputting data to the controller unit 130. The display device (output device) 470 is a device constituted by an LCD (Liquid Crystal Display) or the like, and functions as a user interface when the user utilizes the functions of the controller unit 130 or when making various settings. The storage medium I / F 480 is an interface for transmitting and receiving data to and from a storage medium 490 such as a CD-ROM, DVD-ROM, or USB memory.

[0050] Each of the means included in the controller unit 130 may be realized by the CPU 410 executing a program corresponding to each of the means stored in the ROM 420 or the auxiliary storage device 440. Each of the means included in the controller unit 130 may be realized by implementing the processing related to each of the means as hardware (electronic circuits, etc.). Alternatively, the program according to the present invention may be read from an external server device via the communication I / F 450, or read from the storage medium 490 via the storage medium I / F 480, causing the controller unit 130 to execute the program. (Processing example by the light control glass control system according to the present embodiment)

[0051] A processing example by the present system 100 will be described with reference to Fig. 11. Fig. 11 is a flowchart showing the flow of a processing example by the present system 100. Note that Fig. 11 uses the same flowchart to explain the case where the light control glass section 110 is initially in a transparent state 230 and the case where it is initially in an opaque state 240.

[0052] In S10, the sensor unit 120 measures the brightness near the light control glass unit 110, and notifies the controller unit 130 of the measurement result 260. Next, in S10, the comparison means 140 compares the measurement result 260 with a brightness threshold value 270. The units of the measurement result 260 and the brightness threshold value 270 may be any information representing brightness, such as an electrical signal (voltage, etc.) representing the measurement result measured by the brightness sensor surface 250, and the units are not particularly limited.

[0053] Then, in S10, the determination means 150 determines whether or not the state of the light control glass unit 110 should change. Here, when the light control glass unit 110 is in the transparent state 230 and the measurement result 260 is greater than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the opaque state 240. Also, when the light control glass unit 110 is in the opaque state 240 and the measurement result 260 is less than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the transparent state 230.

[0054] If the determination result by the determination means 150 in S20 is that the light control glass unit 110 should change to the opaque state 240 or that the light control glass unit 110 should change to the transparent state 230 (Yes in S20), the process proceeds to S30. If the determination result by the determination means 150 in S20 is not that the light control glass unit 110 should change state (No in S20), the process proceeds to S10. In S30, the timer means 160 resets the measurement time (timer) to zero and starts measuring a predetermined time.

[0055] In S40, the sensor section 120 measures the brightness near the light control glass section 110 and notifies the controller section 130 of the measurement result 260, and the comparison means 140 compares the measurement result 260 with the brightness threshold value 270.

[0056] In S40, the determination means 150 determines whether or not the state of the light control glass unit 110 should change. Here again, when the light control glass unit 110 is in the transparent state 230 and the measurement result 260 is greater than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the opaque state 240. Also, when the light control glass unit 110 is in the opaque state 240 and the measurement result 260 is less than the brightness threshold value 270, the determination means 150 determines that the light control glass unit 110 should change to the transparent state 230.

[0057] If the determination result by the determination means 150 in S50 is that the light control glass unit 110 should change to the opaque state 240 or that the light control glass unit 110 should change to the transparent state 230 (Yes in S50), the process proceeds to S30. If the determination result by the determination means 150 in S50 is not that the light control glass unit 110 should change state (No in S50), the process proceeds to S60.

[0058] If the timer means 160 has finished timing the predetermined time in S60 (Yes in S60), the process proceeds to S70, and if the timer means 160 has not finished timing the predetermined time in S60 (No in S60), the process proceeds to S40.

[0059] In S70, sensor section 120 measures the brightness near light control glass section 110 and notifies controller section 130 of measurement result 260, and comparison means 140 compares measurement result 260 with brightness threshold value 270. Furthermore, in S70, determination means 150 determines whether or not the state of light control glass section 110 should change. When measurement result 260 is greater than brightness threshold value 270, determination means 150 determines that light control glass section 110 should change to opaque state 240. Furthermore, when measurement result 260 is less than brightness threshold value 270, determination means 150 determines that light control glass section 110 should change to transparent state 230.

[0060] If the judgment result by the judgment means 150 in S80 is that the light control glass section 110 should change to the opaque state 240 or that the light control glass section 110 should change to the transparent state 230 (Yes in S80), the processing proceeds to S90.

[0061] In S90, the notification means 170 notifies the light control glass unit 110 of the determination result by the determination means 150 at the end of the timing process by the timer means 160. Here, the determination result by the determination means 150 is a determination that the light control glass unit 110 should change to the transparent state 230, or a determination that the light control glass unit 110 should change to the opaque state 240.

[0062] Then, in S90, the light control glass unit 110 changes from the transparent state 230 to the opaque state 240, or from the opaque state 240 to the transparent state 230, according to the determination result of the determination means 150 notified in S90.

[0063] As described above, by setting the timer time of the timer means 160 appropriately (shortening it), the system 100 can realize the originally intended state change operation of the light control glass section 110 other than that caused by special or temporary factors without causing the user to feel uncomfortable.

[0064] Through the above-described processing, when the system 100 controls the ON / OFF of the light-control glass based on the brightness outside (sunlight), for example, it realizes the switching control intended by the user and prevents the shortening of the lifespan of related equipment due to frequent switching control.

[0065] By the above-mentioned processing, the present system 100 prevents switching operations of the light control glass unit 110 based on changes in brightness due to special or temporary factors, and prevents frequent switching operations.

[0066] Through the above-described processing, the present system 100 avoids switching operations of the light control glass unit 110 due to special or temporary factors as much as possible, thereby realizing control of the light control glass unit 110 as intended by the user.

[0067] Through the above-described processing, the present system 100 prevents the lifespan of the light control film 210 and peripheral devices from being shortened by avoiding switching operations and frequent switching operations of the light control glass unit 110 due to special or temporary factors as much as possible.

[0068] Although the embodiment of the present invention has been described in detail above, the present invention is not limited to such specific embodiment, and various modifications and variations are possible within the scope of the gist of the present invention described in the claims. [Explanation of symbols]

[0069] 100 Dimming Glass Control System 110 Light control glass section 120 Sensor section 130 Controller section 140 Means of comparison 150 Judgment means 160 Timer means 170 Means of Notification 210 Light Control Film 220 Plate Glass 230 Transparent state 240 Opaque state 250 Brightness sensor surface 260 Sensor measurement results 270 Brightness Threshold 280 Timer Reset 410 CPU 420 ROM 430 RAM 440 Auxiliary storage 450 Communication Interface 460 Input Device 470 Output Device 480 Storage Media Interface 490 Storage medium

Claims

1. A light control glass control system including: a light control glass section formed by sandwiching a light control film, which changes state between transparent and opaque by ON / OFF control, between glass plates; a sensor section that is installed near the light control glass section and measures the brightness near the light control glass section; and a controller section that performs ON / OFF control of the light control glass section based on the measurement result of the sensor section, The controller unit A comparison means for comparing the measurement result with a brightness threshold value for switching between transparent and opaque of the light control glass portion; a determining means for determining that the light control glass section should change to an opaque state when the light control glass section is in a transparent state and the measurement result is greater than the brightness threshold value, and for determining that the light control glass section should change to a transparent state when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value; a timer means for starting to measure a predetermined time when it is determined that the state should be changed; a notification means for notifying the light control glass of a result of the determination by the determination means at the end of the time measurement by the timer means, The light control glass control system according to claim 1, wherein the timer means resets the measurement of the predetermined time when the determination means determines during the measurement that the state should be changed.

2. A light control glass control system including a light control glass section formed by sandwiching a light control film, which changes state between transparent and opaque by ON / OFF control, between glass plates, and a sensor section, which is installed near the light control glass section and measures brightness near the light control glass section, comprising: a controller section which performs ON / OFF control of the light control glass section based on a measurement result of the sensor section, A comparison means for comparing the measurement result with a brightness threshold value for switching between transparent and opaque of the light control glass portion; a determining means for determining that the light control glass section should change to an opaque state when the light control glass section is in a transparent state and the measurement result is greater than the brightness threshold value, and for determining that the light control glass section should change to a transparent state when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value; a timer means for starting to measure a predetermined time when it is determined that the state should be changed; a notification means for notifying the light control glass of a result of the determination by the determination means at the end of the time measurement by the timer means, The controller section is characterized in that the timer means resets the measurement of the predetermined time when the determination means determines that the state should change during the measurement.

3. A light control glass control method in a light control glass control system including a light control glass section formed by sandwiching a light control film that changes state between transparent and opaque by ON / OFF control between glass plates, a sensor section that is installed near the light control glass section and measures the brightness near the light control glass section, and a controller section that performs ON / OFF control for the light control glass section based on the measurement result of the sensor section, In the controller unit, A comparison step in which a comparison means compares the measurement result with a brightness threshold value for switching between transparent and opaque states of the light control glass portion; A step in which a determination means determines that the light control glass section should change to an opaque state when the light control glass section is in a transparent state and the measurement result is greater than the brightness threshold value, and determines that the light control glass section should change to a transparent state when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value; a step of starting a timer means to measure a predetermined time when it is determined that the state should be changed; a notification means notifying the light control glass unit of a determination result by the determination means at a time when the timer means finishes timing; The light control glass control method according to the present invention, characterized in that the timer means resets the measurement of the predetermined time when the determination means determines during the measurement that the state should be changed.

4. A light control glass control system including a light control glass section formed by sandwiching a light control film that changes state between transparent and opaque by ON / OFF control between glass plates, and a sensor section that is installed near the light control glass section and measures brightness near the light control glass section, comprising: a control method performed by a controller section that performs ON / OFF control on the light control glass section based on a measurement result of the sensor section, A comparison step in which a comparison means compares the measurement result with a brightness threshold value for switching between transparent and opaque states of the light control glass portion; A step in which a determination means determines that the light control glass section should change to an opaque state when the light control glass section is in a transparent state and the measurement result is greater than the brightness threshold value, and determines that the light control glass section should change to a transparent state when the light control glass section is in an opaque state and the measurement result is less than the brightness threshold value; a step of starting a timer means to measure a predetermined time when it is determined that the state should be changed; a notification means notifying the light control glass unit of a determination result by the determination means at a time when the timer means finishes timing; A control method comprising the steps of: resetting said timer means for measuring said predetermined time when said determining means determines that said state should change during said measuring;

5. A control program for causing a computer to execute the method according to claim 4.

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