JP2007141581A - Lighting control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To turn on and off a lighting device at an appropriate timing in accordance with a user's feeling and aim at energy saving. <P>SOLUTION: In the lighting control device 10 automatically turning on or off a lighting device L in accordance with luminance in the neighborhood, a control part body 11 distinguishes which of given time slots the present time belongs to, and changes a combination of lighting-on luminance and lighting-off luminance in accordance with the time slots. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lighting control device, and more particularly to an energy saving technique in the lighting control device.

In general, an illumination device such as a street light used outdoors is provided with an automatic flashing device so that it is turned on when it becomes dark in the evening and turned off when it becomes brighter in the morning (see, for example, Patent Document 1).
The automatic flashing device measures the illuminance of an environment where a street light or the like is installed, and performs flashing control based on the measured illuminance.
In the conventional automatic flashing device, a difference in illumination between lighting and extinguishing must be provided in order to prevent malfunction.

For example, when the surroundings gradually darken from daytime to night, the street lights turn on when the ambient illuminance is 100 lx. The street light was turned off.
In this case, the ambient illuminance at the time of lighting is set to 100 lx, and the ambient illuminance at the time of turning off is set to 200 lx in order to prevent the lamp life of the street lamp from being shortened by repeatedly turning on and off unnecessarily. . Specifically, if the ambient illuminance at the time of lighting is 100 lx and the ambient illuminance at the time of extinguishing is 120 lx, lighting and extinguishing may be repeated depending on the movement of the cloud, and the lamp life of the street light Could be shortened.
Japanese Patent Laid-Open No. 61-27097

In order to solve this problem, it may be possible to set a delay time for switching the operation to avoid unnecessary operation due to temporary illumination changes, but it does not work immediately even when the illumination intensity that needs to be turned on or off is inconvenient. It was difficult to say that it was an appropriate method.
SUMMARY OF THE INVENTION An object of the present invention is to provide an illumination control device that can be turned on and off at an appropriate timing according to the user's feeling and can save energy.

In order to solve the above problem, in a lighting control device that automatically turns on or off the lighting device according to the ambient illuminance, a time zone determination unit that determines which predetermined time zone the current time belongs to, and And a blinking setting changer that changes the combination of the illumination illuminance and the illumination illuminance according to the time zone.
According to the above configuration, the time zone determination unit determines which predetermined time zone the current time belongs to, and the blinking setting change unit determines the combination of the lighting illuminance and the lighting illuminance according to the determined time zone. change.
In addition, in the lighting control device that automatically turns on or off the lighting device according to the surrounding luminance, a time zone determination unit that determines which predetermined time zone the current time belongs to, and according to the time zone And a blinking setting changing unit for changing a combination of the lighting brightness and the turning-off brightness.
According to the above configuration, the time zone determination unit determines which predetermined time zone the current time belongs to, and the blinking setting change unit selects a combination of the lighting luminance and the lighting luminance depending on the determined time zone. change.
In these cases, the predetermined time zone may be set based on a season or an area where the lighting device is installed.

  According to the present invention, it is possible to turn on and off at an appropriate timing according to the user's sense and to save energy.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration block diagram of a lighting control apparatus according to an embodiment.
The illumination control device 10 having a function as an automatic flashing device is roughly configured to include a control unit main body 11 and a light receiver 12 for measuring the illuminance around the illumination device L to be controlled. Yes.

FIG. 2 is a block diagram illustrating a detailed configuration of the illumination control apparatus according to the embodiment.
The control unit body 11 is configured as a microcomputer, and includes a control unit circuit 21 that controls the entire control unit body 11, a communication circuit 22 that performs communication with the light receiver 12 under the control of the control unit circuit 21, and a communication A communication connector unit 23 connected to the circuit 22; a relay output terminal circuit 24 having a plurality of relays; and a blinking control of a plurality of lighting devices connected under the control of the control unit circuit 21; A control connector 25 provided with connector terminals for connecting a plurality of lighting devices to the terminal circuit 24, and an abnormality detection signal for notifying the user of an abnormal state under the control of the control circuit 21 An abnormal output circuit 26, an abnormal output connector 27 for connecting the abnormal output circuit 26 to an external alarm device (speaker, lamp, etc.), and an external commercial power source (100/200) The main power supply circuit 29 that receives power supply from the power supply terminal 28 through the power supply terminal 28 and supplies power to the entire control unit main body 11, and the power for driving the light receiver 12 through the light receiver power connector 31. And a light source power supply circuit 32 for supplying to the receiver. The control unit body 11 includes a communication circuit 22, a relay output terminal circuit 24, an abnormal output circuit 26, a main power supply circuit 29 and a light receiver power supply circuit 32, a communication connector unit 23, a control connector unit 25, and an abnormal output connector unit 27. And a surge / noise countermeasure element / circuit 30 that is inserted between the receiver power connector 31 and the surge current and noise of various signals.

In this case, the control connector unit controls the flashing control terminals TLA to TLC for performing the flashing control of the three systems of lighting devices L, and the dimming control for performing the light control of one or more systems of the lighting devices L. And a common terminal TCM that functions as a common electrode terminal for the blinking control terminals TLA to TLC and the dimming control terminal TCN.
The light receiver 12 includes a light receiving element 41 configured as an illuminance sensor for detecting the illuminance around the lighting device L to be controlled, and a sensor output data obtained by performing analog / digital conversion on the sensor output signal output from the light receiving element 41. The communication circuit 43 that outputs to the control unit main body via the communication connector part 42 and the communication line LC, and the power supplied from the light receiver power supply circuit 32 via the light receiver power connector 31, the power supply line LP and the power terminal 44 And a power supply circuit 45 for supplying the operation power supply to the entire light receiver 12 based on the above. Further, the light receiver 12 is interposed between the communication circuit 43 and the power supply circuit 45 and the communication connector portion 42 and the power supply terminal 44, and is a surge / noise countermeasure element / circuit 46 that removes a surge current and noise of various signals. It has.

Here, the principle of the present invention will be described.
First, dark adaptation and bright adaptation of human eyes will be described.
Dark adaptation means that when you enter a dark place from a bright place, the eyes gradually get used to it in the dark so that you can see it gradually after a while, although you can't see it well at first. On the other hand, light adaptation means that when you enter a bright place from a dark place, the eyes gradually get used to it in a bright way so that you can see it gradually after a while, even though you cannot see the surroundings very well. Also, dark adaptation takes more time to get used to the eyes than light adaptation.

By the way, in the sunset, it is appropriate to turn on the lighting device early because it is dark adaptation because it is dark because it is dark, and eyes are not used immediately.
On the other hand, in the case of sunrise, since it was brighter than dark, it is brightly adapted, and when it starts to brighten, there is no problem even if it turns off early.
Therefore, in the present embodiment, the human physiology is changed by changing the lighting illuminance setting, which is a combination of the lighting illuminance setting and the lighting illuminance setting, according to the time zone (time zone including sunset and time zone including sunrise). This makes it possible to perform lighting control close to.

Next, a specific operation will be described.
In the following description, the time zone including the sunset (hereinafter referred to as the first time zone) is set to 12:00 to 24:00 in the 24-hour system, and the time zone including the sunrise (hereinafter referred to as the second time zone). 0:00 to 12:00.
FIG. 3 is an explanatory diagram of the first specific example.
In the first specific example, the first time zone is a time zone for preferentially setting the lighting setting for the purpose of lighting operation. For example, the lighting time is set to light when the illuminance at the light receiver 11 reaches 100 lx. The light-off setting is set so that the light is turned off when the illuminance at the light receiver 11 reaches 200 lx, which is twice 100 lx.
On the other hand, the second time zone is a time zone for preferentially setting the extinction setting for the purpose of the extinguishing operation. For example, the extinction setting is such that when the illuminance at the light receiver 11 becomes 120 lx, the extinction setting is turned off, and the receiving setting is received. It is set to light up when the illuminance in the vessel 11 is 60 lx, which is half of 120 lx.

Specifically, the lighting on / off illuminance setting for each time zone is stored in advance as lighting on / off illuminance data in a non-illustrated nonvolatile memory of the control circuit 21.
In this state, the power supply circuit 45 of the photoreceiver 12 supplies the operation power supply to the photoreceiver 12 based on the power supplied from the photoreceiver power supply circuit 32 via the photoreceiver power supply connector 31, the power supply line LP and the power supply terminal 44. Supply to the whole.
As a result, the light receiving element 41 detects the illuminance around the lighting device L and outputs a sensor output signal to the communication circuit 43.
The communication circuit 43 performs analog / digital conversion on the sensor output signal and outputs it as sensor output data to the communication circuit 22 of the control unit main body 11 via the communication connector 42 and the communication line LC.

FIG. 4 is a process flowchart of the control circuit unit of the embodiment.
On the other hand, when receiving the sensor output data via the communication circuit 22, the control circuit unit 21 of the control unit main body 11 determines whether the current time belongs to the first time zone or the second time zone (step S11). ).
If it is determined in step S11 that the current time belongs to the first time zone (step S11; current time = 12: 00 to 24:00), the lighting illuminance B = 100 lx is applied (step S12), and the lighting illuminance 100lx. And the illumination intensity of 200 lx (= 2 · B) is adopted (step S13).
Subsequently, the control circuit unit 21 determines the current brightness (illuminance) (step S16).
If it is determined in step S16 that the current brightness is less than or equal to the lighting illuminance B = 100 lx, the control circuit unit 21 supplies power from the blinking control terminals TLA to TLC and is connected to each of the blinking control terminals TLA to TLC. The lighting device L is turned on (step S17), the process proceeds to step S11 again, and the same process is repeated thereafter.

If it is determined in step S16 that the current brightness is higher than the lighting illuminance B and the illumination illuminance is less than 200 lx, the control circuit unit 21 maintains the current state (step S18). That is, when the lighting device L is on, the lighting state is maintained, and when the lighting device L is off, the off state is maintained (step S18), and the process proceeds to step S11 again. Similar processing is repeated.
If it is determined in step S16 that the current brightness is extinction illuminance = 200 lx or more, the control circuit unit 21 stops the power supply from the blinking control terminals TLA to TLC, and supplies the blinking control terminals TLA to TLC. The connected lighting device L is turned off (step S19), the process proceeds to step S11 again, and the same process is repeated thereafter.

More specifically, in the case of FIG. 3, when the current time is 18:00, it is the first time zone, and the illuminance around the illumination device L detected by the light receiver 12 is 100 lx or less. Supplies electric power from the blinking control terminals TLA to TLC, and turns on the lighting device L connected to each of the blinking control terminals TLA to TLC. In the above description, all the blinking control terminals TLA to TLC are described as being collectively set. However, actually, the lighting control can be performed individually.
If it is determined in step S11 that the current time belongs to the second time zone (step S11; current time = 0 o'clock to 12 o'clock), the illumination intensity A = 120 lx is applied (step S14), and the illumination intensity 60 lx (= 0.5 · A) and extinction illuminance of 120 lx are employed (step S15).

Subsequently, the control circuit unit 21 determines the current brightness (illuminance) (step S16).
If it is determined in step S16 that the current brightness is lighting illuminance = 60 lx or less, the control circuit unit 21 supplies power from the blinking control terminals TLA to TLC and is connected to each of the blinking control terminals TLA to TLC. The lighting device L is turned on (step S17), the process proceeds to step S11 again, and the same process is repeated thereafter.
If it is determined in step S16 that the current brightness is higher than the lighting illuminance = 60 lx and less than the lighting illuminance A = 120 lx, the control circuit unit 21 maintains the current state (step S18). That is, when the lighting device L is on, the lighting state is maintained, and when the lighting device L is off, the off state is maintained (step S18), and the process proceeds to step S11 again. Similar processing is repeated.

If it is determined in step S16 that the current brightness is equal to or greater than the turn-off illuminance A = 120 lx, the control circuit unit 21 stops the power supply from the blinking control terminals TLA to TLC and the blinking control terminals TLA to TLC are stopped. The lighting device L connected to is turned off (step S19), the process proceeds to step S11 again, and the same process is repeated thereafter.
More specifically, in FIG. 3, when the current time is 5 o'clock, it is the second time zone, and the illuminance around the illumination device L detected by the light receiver 12 is equal to or greater than the extinction illuminance A = 120 lx. The circuit unit 21 stops the power supply from the blinking control terminals TLA to TLC, and turns off the lighting devices L connected to the blinking control terminals TLA to TLC.

FIG. 5 is an explanatory diagram of a second specific example.
Also in the second specific example, the first time period is a time period for preferentially setting the lighting setting for the purpose of lighting operation. For example, when the illuminance at the light receiver 11 is 100 lx or less as the lighting setting, the first time period is turned on. As a setting for turning off the light, the light is turned off when the illuminance at the light receiver 11 becomes 200 lx or more, which is twice 100 lx.
On the other hand, the second time period is a time period for preferentially setting the extinction setting for the purpose of the extinguishing operation. For example, the extinction setting is such that the extinction is turned off when the illuminance at the light receiver 11 is 60 lx or more. It is set to light up when the illuminance at the light receiver 11 is 30 lx or less, which is half of 60 lx.

In this state, the power supply circuit 45 of the photoreceiver 12 supplies the operation power supply to the photoreceiver 12 based on the power supplied from the photoreceiver power supply circuit 32 via the photoreceiver power supply connector 31, the power supply line LP and the power supply terminal 44. Supply to the whole.
As a result, the light receiving element 41 detects the illuminance around the lighting device L and outputs a sensor output signal to the communication circuit 43.
The communication circuit 43 performs analog / digital conversion on the sensor output signal and outputs it as sensor output data to the communication circuit 22 of the control unit main body 11 via the communication connector 42 and the communication line LC.

On the other hand, when receiving the sensor output data via the communication circuit 22, the control circuit unit 21 of the control unit main body 11 determines whether the current time belongs to the first time zone or the second time zone (step S11). ).
If it is determined in step S11 that the current time belongs to the first time zone (step S11; current time = 12: 00 to 24:00), the lighting illuminance B = 100 lx is applied (step S12), and the lighting illuminance 100lx. And the illumination intensity of 200 lx (= 2 · B) is adopted (step S13).
Subsequently, the control circuit unit 21 determines the current brightness (illuminance) (step S16).

If it is determined in step S16 that the current brightness is less than or equal to the lighting illuminance B = 100 lx, the control circuit unit 21 supplies power from the blinking control terminals TLA to TLC and is connected to each of the blinking control terminals TLA to TLC. The lighting device L is turned on (step S17), the process proceeds to step S11 again, and the same process is repeated thereafter.
If it is determined in step S16 that the current brightness is higher than the lighting illuminance B and the illumination illuminance is less than 200 lx, the control circuit unit 21 maintains the current state (step S18). That is, when the lighting device L is on, the lighting state is maintained, and when the lighting device L is off, the off state is maintained (step S18), and the process proceeds to step S11 again. Similar processing is repeated.
If it is determined in step S16 that the current brightness is extinction illuminance = 200 lx or more, the control circuit unit 21 stops the power supply from the blinking control terminals TLA to TLC, and supplies the blinking control terminals TLA to TLC. The connected lighting device L is turned off (step S19), the process proceeds to step S11 again, and the same process is repeated thereafter.

More specifically, in the case of FIG. 5, the current time is 18:00, which is the first time zone, and the illuminance around the illumination device L detected by the light receiver 12 is 100 lx or less. Supplies electric power from the blinking control terminals TLA to TLC, and turns on the lighting device L connected to each of the blinking control terminals TLA to TLC.
If it is determined in step S11 that the current time belongs to the second time zone (step S11; current time = 0 to 12:00), the illumination illuminance A = 60 lx is applied (step S14), and the illumination illuminance 30lx. (= 0.5 · A) and the extinction illuminance of 60 lx are adopted (step S15).
Subsequently, the control circuit unit 21 determines the current brightness (illuminance) (step S16).

If it is determined in step S16 that the current brightness is less than or equal to the lighting illuminance B = 30 lx, the control circuit unit 21 supplies power from the blinking control terminals TLA to TLC and is connected to each of the blinking control terminals TLA to TLC. The lighting device L is turned on (step S17), the process proceeds to step S11 again, and the same process is repeated thereafter.
If it is determined in step S16 that the current brightness is higher than the lighting illuminance B and the illumination illuminance is less than 60 lx, the control circuit unit 21 maintains the current state (step S18). That is, when the lighting device L is on, the lighting state is maintained, and when the lighting device L is off, the off state is maintained (step S18), and the process proceeds to step S11 again. Similar processing is repeated.
If it is determined in step S16 that the current brightness is extinction illuminance = 60 lx or more, the control circuit unit 21 stops the power supply from the blinking control terminals TLA to TLC and supplies the blinking control terminals TLA to TLC. The connected lighting device L is turned off (step S19), the process proceeds to step S11 again, and the same process is repeated thereafter.

More specifically, in the case of FIG. 5, when the current time is 5 o'clock, it is the second time zone, and the illuminance around the illumination device L detected by the light receiver 12 is 60 lx or more. Stops the power supply from the blinking control terminals TLA to TLC, and turns off the lighting devices L connected to the blinking control terminals TLA to TLC.
As described above, according to the present embodiment, the lighting device can be turned on / off closer to the human physiological sense, and the time zone in which the lighting illuminance is given priority and the time zone in which the lighting illuminance is given priority. Since the lighting on / off illuminance setting can be set separately, the effective lighting time can be shortened to save energy.

In the above description, the blinking control of the lighting device is performed based on the illuminance around the lighting device, but the blinking control of the lighting device is performed based on the luminance around the lighting device (unit: cd / m 2). It is also possible to do. Even in this case, the lighting device can be turned on / off closer to the human physiological sense, and the lighting on / off luminance setting can be set separately for the time zone in which the lighting luminance is given priority and the time zone in which the lighting luminance is given priority. Since it can be set, it is possible to save energy by shortening the effective lighting time.
In the above description, the first time zone is set to 12:00 to 24:00 in a 24-hour system, and the second time zone is set to 0:00 to 12:00. However, the latitude or season of the place where the lighting device is installed (for example, It is also possible to make the contents of the lighting / illumination setting different depending on, e.g., spring equinox, summer solstice, autumn equine, and winter solstice. As a result, it is possible to perform lighting on / off control closer to a sense seen by human eyes.
In the above description, the time zone is two, the first time zone and the second time zone, but it is also possible to divide into three or more time zones.

It is a general | schematic block diagram of the illumination control apparatus of embodiment. It is a detailed block diagram of the illumination control device of the embodiment. It is explanatory drawing of a 1st specific example. It is a process flowchart of the control circuit part of embodiment. It is explanatory drawing of a 2nd specific example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting control apparatus 11 Control part main body 12 Light receiver 21 Control part circuit 22 Communication circuit 24 Relay output terminal circuit 29 Main power supply circuit 32 Power supply circuit for light receivers L Lighting apparatus TLA-TLC Flashing control terminal TCN Light control terminal TCM Common terminal

Claims (3)

In the lighting control device that automatically turns on or off the lighting device according to the ambient illuminance,
A time zone discriminating unit for discriminating to which predetermined time zone the current time belongs;
A blinking setting change unit that changes the combination of the illumination illuminance and the illumination illuminance according to the time zone,
An illumination control device comprising: In the lighting control device that automatically turns on or off the lighting device according to the surrounding brightness,
A time zone discriminating unit for discriminating to which predetermined time zone the current time belongs;
A blinking setting changing unit that changes a combination of lighting luminance and lighting luminance depending on the time zone,
An illumination control device comprising: In the lighting control device according to claim 1 or 2,
The predetermined time zone is set based on a season or an area where the lighting device is installed.

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