JP2001307888A - Automatic lighting switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic lighting switch device which realizes an arbitrary switching operation easily while an illuminance sensitive type automatic lighting switch device on the market is used. SOLUTION: This has two illuminance induction type lighting switch devices wherein, while either switch-on standard luminance or switch-off standard luminance is manually set, the other is automatically set, and a calculation of a logic circuit to do a logical operation of the output of these two automatic lighting switch devices is equipped, and therefore the lighting load based on the result of the calculation of the output of the two automatic lighting switch devices is automatically switched on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic light-on / off device suitable for, for example, turning on / off an outdoor light of a building or a condominium, and more particularly to two commercially available illuminance-sensitive automatic light-on / off switch devices. The present invention relates to an automatic turning on / off device that can easily realize any operating characteristics by using the same.

[0002]

2. Description of the Related Art An automatic light-on / off device detects an ambient illuminance by an illuminance-sensitive automatic light-on / off switch device and automatically turns on / off a lighting load. A familiar example is
2. Description of the Related Art There are known those applied to outdoor lighting of buildings and condominiums.

[0003] In the automatic light-on / off device, two reference illuminances are set, a lighting reference illuminance for determining a lighting timing and a light-off reference illuminance for determining a turning-off timing. A hysteresis characteristic is provided between the two reference illuminances so as to prevent the illumination load from performing an unstable on / off operation due to a minute illuminance variation in the evening or dawn.

In general, one of the reference illuminances, which is turned on or off, is left to manual setting, but in consideration of the user's convenience, the other reference illuminance is automatically set according to a predetermined algorithm. I have.

[0005] For example, an EE switch (model EE4) manufactured by Matsushita Electric Works, which is one of the illuminance-sensitive type automatic light-on / off switch devices.
In 413), the lighting reference illuminance is left to manual setting in the range of 5 to 300 lx. On the other hand, the light-off reference illuminance is automatically set according to a predetermined algorithm. Specifically, when the lighting reference illuminance is manually set to 5 lx, the light-off reference illuminance is 10 times or less of the lighting reference illuminance, and when the lighting reference illuminance is manually set to 300 lx, the light-off reference illuminance is 5 times or less the lighting reference illuminance. Is automatically set to This frees the user from having to manually set both reference illuminances individually while considering the hysteresis characteristics.

[0006]

However, the algorithm for automatically setting the reference illuminance is a fixed algorithm left to the design of the maker, so that the optimum reference illuminance for turning on and off is always maintained even in any site situation. It is very difficult to get.

[0007] In addition, this problem becomes more serious when the sunshine environment at the place where the automatic light-on / off switch device is installed is different from the sunshine environment at the place where the lamp is installed.

For example, due to restrictions on the arrangement of switch boxes, etc., an illuminance-sensitive type automatic light-on / off switch installed on the west side of an apartment where the west is well hit turns on / off the illuminating lights installed on the east side of the apartment where the sun shines well. There is a case where it is inevitable to adopt the configuration described above.

In such a case, if the lighting reference illuminance is manually set to a certain value in accordance with the illuminance on the west side in the evening, a switch is installed on the east side of the apartment, even though it is already sufficiently dark in the evening. Since the west-side illuminance does not decrease to the lighting reference illuminance, there is a disadvantage that the illumination lamp does not turn on. In this case, for example, a complaint that the keyhole of the door is difficult to see is sent from the resident or the like to the apartment management company.

Therefore, when the lighting reference illuminance is manually set to a higher lighting reference illuminance in accordance with the eastern illuminance in the evening, the turning off reference illuminance is automatically set to a higher value (5 to 10 times or less the lighting reference illuminance). However, on the east side of the apartment, despite the dawn being already bright enough, the illuminance on the west side where the switch is installed has not risen to the light-off reference illuminance. . In this case, for example, a complaint that the electricity bill is increased is similarly sent from a resident or the like to the apartment management company.

Conversely, if a lower lighting reference illuminance is set in accordance with the eastern illuminance in the morning, the extinction reference illuminance is automatically set to a lower value in conjunction therewith. The situation gets worse with further delays.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to use a commercially available illuminance-sensitive type automatic light-on / off switch device while maintaining an arbitrary light-on / off operation characteristic. An object of the present invention is to provide an automatic light-on / off device that can be easily realized.

[0013]

An automatic light-on / off device according to the present invention comprises two illuminance-responsive automatic light-on / off switches in which one of a lighting reference illuminance and a light-off reference illuminance is manually set and the other is automatically set. And a logical operation circuit for performing a logical operation on the outputs of the two automatic light-on / off switch devices, whereby the lighting load is automatically turned on based on the logical operation result of the two automatic light-on / off switch devices. It turns off the light.

In the present invention, two commercially available illuminance-sensitive automatic light-on / off switch devices are used. Here, a device called an “illuminance-sensitive automatic turning on / off switch device” is an internal switch (output switch) that is turned on when the illuminance detected by the photoelectric element decreases to the lighting reference illuminance, and turned off when the illuminance detected by the photoelectric element increases to the turning off reference illuminance. It is a device provided. As the internal switch, a semiconductor contactless switch or a contact switch is used. Generally, this internal switch directly opens and closes the lighting load. For a large-capacity lighting load, this internal switch opens and closes the auxiliary relay for control of the large switch.

Generally, a hysteresis characteristic is provided between the lighting reference illuminance and the turning-off reference illuminance in order to avoid unstable on / off operation. If the lighting reference illuminance can be manually set, the light-off reference illuminance is automatically set according to a predetermined algorithm. Conversely, when the light-off reference illuminance can be manually set, the light-on reference illuminance is automatically set according to a predetermined algorithm. Note that the method for manually setting the reference illuminance includes a case where a built-in adjustment volume or the like is operated and a case where a light amount to a photoelectric element for illuminance detection is reduced by a filter (for example, a black film or the like). Can be considered.

The reference illuminance automatic setting algorithm includes:
Various things are proposed by the manufacturer. In one algorithm, when the lighting reference illuminance is manually set, the light-off reference illuminance is automatically set to a value higher than the lighting reference illuminance according to a predetermined design concept. In another algorithm, when the lighting reference illuminance is manually set, the light-off reference illuminance is automatically set to a value lower than the lighting reference illuminance according to a predetermined design concept. Thus, the design philosophy varies.

In a preferred embodiment, one of the two automatic light-on / off switch devices is set to a desired lighting reference illuminance, and the other is set to a desired lighting reference illuminance.
By adopting such a configuration, in combination with the configuration of the logical operation circuit, it is possible to freely set the reference light / light illuminance without depending on the reference illuminance automatic setting algorithm of each automatic light-on / off switch device.

What kind of operation specifications are used as the two automatic light-on / off switch devices is determined by the on / off specification of the target lighting load (how much light is turned on and how much light is turned off). Do). Two automatic light-on / off switch devices having the same operation specifications may be used, or two automatic light-on / off switch devices having different operation specifications may be used. In short, it is only necessary that the on / off specification of the target lighting load can be realized by the logical operation of the output characteristics of the two automatic light-on / off switch devices. However, if two switch devices having the same operation specifications are adopted, the reference illuminance setting operation is simplified. That is, if the lighting (or extinguishing) reference illuminance of one automatic light-on / off switch device is set to be higher than the lighting (or extinguishing) reference illuminance of the other automatic light-on / off switch device, the light-off (or on) reference illuminance is set. This is because such disparities can be obtained by themselves.

In the present invention, a logical operation circuit is used to realize the on / off specification of the target lighting load. The content of the logical operation is determined by the operating specifications of the two automatic light-on / off switch devices to be employed and the on / off specifications of the target lighting load.

For example, if the outputs of both switch devices are connected in parallel to each other to perform a logical sum operation, the lighting load is turned on only during a period in which at least one of the outputs of both switch devices is on. Can be. If both switches are connected in series and a logical AND operation is performed, only during the period when both outputs of both switches are on,
The lighting load can be turned on.

Further, if any one of the outputs of the two switch devices connected in parallel is separated from the circuit at an appropriate timing using a timer or the like, the timing of the switch device (A) which is turned on first is earlier than that of the switch device (A). Selecting a period until the timing of the switch device (B) to be turned off, or selecting a period from the timing of the switch device (B) to be turned on to the timing of the switch device (A) to be turned off later, The lighting load can be turned on.
This means that it is possible to calculate an output signal in which the period from the on-time of the output of one automatic on / off switch device to the off-time of the output of the other automatic on / off switch device is on. Here, the switch devices (A) and (B) are different switch devices.

Therefore, according to the automatic light-on / off device of the present invention, while using a commercially available illuminance-sensitive automatic light-on / off switch device, any light-on / off operation can be performed without being restricted by the individual reference illuminance automatic setting algorithm. The operation characteristics can be easily realized.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

One embodiment of an automatic light-on / off device to which the present invention is applied is shown in FIGS. FIG. 1 is a bird's-eye view showing the positional relationship between the device of the present invention applied to an apartment and a common light, FIG. 2 is an external view showing the mode of attachment of the device of the present invention to a switch box, and FIG. 3 is a circuit configuration of the device of the present invention. FIG. 4 is a ladder diagram showing a logical operation circuit of the device of the present invention, and FIG. 5 is an explanatory diagram of the operation of the device of the present invention.

In FIG. 1, 1 is an apartment to which the present invention is applied, 1a is an eastern building of the apartment 1, 1b is a western building of the apartment 1, 2 is a switch box installed in the western building 1b (of the present invention). (Automatic light-off device is incorporated.) 3 is the eastern front entrance, 4 is the common hallway on each floor of the eastern building 1a, L1 is a shared lamp installed in the corridor 4 in plurals, and L2 is the front entrance of the eastern building 1a. 3
It is a common light installed in

In this apartment 1, the switch box 2 is installed in the west building 1b for reasons such as wiring. The switch box 2 has an automatic light-on / off device and a wiring board for connecting to the common lights L1, L2 and the like on the east side, and two automatic light-on / off switch devices S1, S2 to be described later.
Is attached to this switch box 2. Common light L
1, L2 are automatically turned on / off based on the detected illuminance of the automatic light-on / off switch devices S1, S2.

At the dawn, the area around the west side of the apartment, where the switch box 2 is installed, is darker than the area around the eastern corridor 4 and the eastern front entrance 3 because the sun is blocked by the eastern building 1a at dawn. On the other hand, in the evening, the west side is blocked by the east side corridor 4 because the west side is blocked by the east side building 1a because the west side is shining.
And the area around the front entrance 3 becomes brighter.

The automatic light-on / off device of the present invention has the following features.
It is particularly preferably used when the installation location of the switch box 2 to which the automatic light-on / off switch device is mounted and the installation location of the lights L1 and L2 automatically turned on and off by the automatic light-on / off switch are different. is there.

FIG. 2 shows how the automatic light-on / off device according to this embodiment is attached to a switch box.
In the figure, 2 is a switch box, 2a is an opening / closing door on the front face of the switch box, S1 and S2 are automatic switch-on / off switches, and VR1 and VR2 are automatic switch-on / off switches S
Reference illumination adjustment volumes 1 and 2 are the outer walls of the western building 1b located behind the switch box 2.
Note that the reference illuminance adjustment volume VR1 is shown enlarged in the figure.

Two automatic light-on / off switch devices S1, S2
In this example, an EE switch (model EE4413) manufactured by Matsushita Electric Works is used in this example. The switch devices S1 and S2 include a front opening / closing door 2a of the switch box 2.
And a multi-timer (not shown), which will be described later, is accommodated in the switch box 2,
Each is connected to a power source and a common light.

Two automatic light-on / off switch devices S1, S2
As shown in the enlarged view in the figure, reference illuminance adjustment volumes VR1 and VR2 are provided at the bottom, respectively. By appropriately adjusting these reference illuminance adjustment volumes VR1 and VR2, the light-on / off reference illuminance is adjusted. Can be set freely within a predetermined range. In this example, the settable range is 5 to 300 lx for the lighting reference illuminance. The light-off reference illuminance is automatically set based on a set value of the light-on reference illuminance according to a predetermined algorithm so that a hysteresis characteristic is provided. In the EE switch manufactured by Matsushita Electric Works, which is adopted in the present embodiment, the light-off reference illuminance is set higher (brighter) than the light-up reference illuminance, and its range is set to 5 to 10 times or less of the light-up reference illuminance.

The circuit configuration of the automatic light-on / off device is shown in the connection diagram of FIG. In the figure, reference numerals S1 and S2 denote automatic switch-on / off devices. These automatic light-on / off switch devices S1 and S2 perform control processing of processing the output from the phototransistor PT as the photoelectric element, the triac TRC as the internal switching element, and the output from the phototransistor PT, and controlling the triac TRC based on the calculation result. It has a circuit CTR.

The power supply PWR is connected between the terminals T1 and T2. The common light L, which is the lighting load to be turned on and off, is connected to the terminal T
2 and T3. TM is a multi-timer,
The multi-timer TM includes a time-measuring element D that measures a set timer time, and a time-recovery operation instantaneous return contact SW that is automatically opened and closed based on the time measured by the time-measuring element D. still,
In this example, OMRON H
3YN-21 is used.

FIG. 4 is a ladder diagram showing the above circuit configuration. In the figure, P1 and P2 are power buses, SW
1, SW2 is an output switch of the automatic light-on / off switch device S1, S2 (corresponding to the triac TRC shown in FIG. 3), T is a timing element of the multi-timer TM (corresponding to the timing element D shown in FIG. 3), T-1 is a multi-timer TM
, L denotes a shared lamp (corresponding to the shared lamps L1 and L2 shown in FIG. 1).

As shown in the figure, the output switch SW1 of the automatic light-on / off switch device S1 and a timing element (hereinafter, referred to as a timer) T are connected in series between power supply buses P1 and P2. Similarly, for the output switch SW2 and the common light L of the automatic light-on / off switch device S2, the power bus P1,
It is connected in series between P2. The contact point T-1 of the timer is connected to a connection point C1 between the output switch SW1 of the automatic light-on / off switch device S1 and the timer T, and a connection point C2 between the output switch SW2 of the automatic light-on / off switch device S2 and the common light L. Connected between Therefore, according to the operation state of the contact point T-1 of the timer, the common lamp L is output via the output switch SW1.
Is formed.

That is, when the output switch SW1 of the automatic light-on / off switch device S1 is on (ON), the output switch SW1 of the automatic light-on / off switch device S1 is switched on the condition that the contact T-1 of the timer is closed. Electricity is supplied to the common lamp L, and the common lamp L is turned on. Similarly,
When the output switch SW2 of the automatic light-on / off switch device S2 is on (ON), power is supplied to the common light L from the output switch SW2 of the automatic light-on / off switch device S2, and the common light L is turned on.

The timer T is controlled by an automatic light-on / off switch device S1.
When the output switch SW1 is turned on (ON), power is supplied, and measurement of a preset timer time is started in synchronization with the ON (ON) timing of the output switch SW1. When the timer time elapses, the contact T-1 of the timer is opened, and the power supply from the output switch SW1 to the common light L is cut off. In this state, the common light L is turned on when the output switch SW2 of the automatic light-on / off device S2 is on (ON), but is not turned on when the output switch SW2 is off (OFF).

As described above, in this embodiment, within the timer time specified by the timer T, the energization state of the common light L is determined by the output of the automatic light-on / off switch device S1 (output switch SW1) and the automatic light-on / off switch device. Although controlled by the logical sum with the output of S2 (output switch SW2), after the timer time has elapsed, the energizing state of the common light L is only the output (output switch SW2) of the automatic light-on / off switch device S2. A logic operation circuit is configured to be controlled by the logic operation circuit.

In the above-described circuit configuration, the lighting reference illuminance of the automatic light-on / off switch device S1 is set to 300 lx, and the light-off reference illuminance of the automatic light-on / off switch device S2 is set to 1.
Set to 50 lx. At this time, the setting of the lighting reference illuminance can be directly performed by operating the sensitivity adjustment volume VR. On the other hand, the setting of the light-off reference illuminance is indirectly performed through an automatic setting process based on a predetermined algorithm by setting the light-on reference illuminance by the sensitivity adjustment volume VR. That is, the automatic light-on / off switch device S
The turn-off reference illuminance of No. 2 can be set by specifying the turn-on reference illuminance corresponding to the turn-off reference illuminance of 150 lx.

When the reference illuminance is set in this manner, the Matsushita Electric Works EE switch automatically turns on and off the switch device S1.
Has been confirmed to be higher than 150 lx, and the lighting reference illuminance of the automatic light-on / off switch device S2 will be lower than 300 lx. That is, in the evening, the automatic light-on / off switch device S1 generates the lighting output first, and in the dawn, the automatic light-on / off switch device S2 generates the light-off output first.

In addition, the timer time of the timer T is set to 2 hours. The timer time is set to be longer than a required time from a previously assumed ON (ON) timing of the automatic switch on / off switch device S1 to an ON (ON) timing of the automatic switch on / off switch device S2. It is set shorter than the required time from the ON (ON) timing of S1 to the OFF (OFF) timing of the automatic light-on / off switch device S2. This is because, after the output contacts SW1 and SW2 of the automatic light-on / off switch devices S1 and S2 are both turned on (ON), the contact T-1 of the timer is opened,
This is for closing the contact T-1 of the timer after the off (OFF) timing of the output contact SW2 of the automatic light-on / off switch device S2.

In FIG. 5A, the west illuminance W and the east illuminance E of the apartment 1 in the respective time zones from the evening to the dawn are shown with time on the horizontal axis and illuminance on the vertical axis. In the figure, TH1 is the lighting reference illuminance (= 300 lx) of the automatic light-on / off switch device S1, TH2 is the light-off reference illuminance of the automatic light-on / off switch device S1, TH3 is the lighting reference illuminance of the automatic light-on / off switch device S2, and TH4 is This is the light-off reference illuminance (= 150 lx) of the automatic light-on / off switch.

Also, (b) shows the state of the output contact SW1 of the automatic light-on / off switch device S1, (c) shows the state of the output contact SW2 of the automatic light-on / off switch device S2, and (d) shows the timer. In the figure, (e) shows the state of the timer contact T-1, and (f) shows the on / off state of the common light L, respectively.

In the evening, the sun starts to set, the illuminance decreases, and the west illuminance W becomes equal to the lighting reference illuminance 3 of the automatic switch on / off switch S1.
When it reaches 00lx, the output contact SW1 of the automatic light-on / off switch device S1 is turned on (ON). As a result, energization of the common light L via the output contact SW1 of the automatic light-on / off switch device S1 is started, and the common light L is turned on. At this time, the illuminance E on the east side where the west sun is blocked is lower than 300 lx, and the lighting illuminance is appropriate. The timer T is started in synchronization with the ON (ON) timing of the automatic light-on / off switch device S1, and a preset timer time (here, 2
Time) measurement is started.

Next, when the illuminance W on the west side falls to the lighting reference illuminance TH3 of the automatic light-on / off switch device S2, the output contact SW2 of the automatic light-on / off switch device S2 is turned on (ON).
Then, the energization to the common light L via the output contact SW2 of the automatic light-on / off switch device S2 is started, but the common light L is already energized from the output contact SW1 of the automatic light-on / off switch device S1. Does not affect the turning on and off of the common light L. The illuminance E on the east side at this time is lower than 150 lx, which is quite dark.

Output contact SW1 of the automatic light-on / off switch S1
When two hours have elapsed from the ON timing of the timer T, the timer T times out and the contact T-1 is opened. Thereby, the power supply to the common light L via the output contact SW1 of the automatic light-on / off switch device S1 is cut off. At this time, since the common lamp L is energized via the output contact SW2 of the automatic light-on / off switch device S2, the common lamp L is not turned off. Thereafter, the common light L is turned on until the next dawn.

The next morning, the sun starts to rise, the illuminance rises, and the west illuminance W becomes equal to the reference illuminance T for turning off the automatic switch on / off switch S2.
When it reaches H4 (= 150 lx), the output contact SW2 of the automatic light-on / off switch device S2 is turned off. At this time, the light-off reference illuminance TH of the automatic light-on / off switch device S1 is used.
2 is sufficiently higher than 150 lx, the output contact SW1 of the automatic light-on / off switch device S1 is in the ON state, and the contact T-1 of the timer T remains open. For this reason, the common lamp L is extinguished because there is no power supply to the common lamp L via the output contact SW2 of the automatic light-on / off switch device S2. At this time, the east illuminance E is 150 l
It is higher than x and has an appropriate light-off illuminance.

Thereafter, when the sun rises further and the west illuminance W reaches the extinction reference illuminance TH2 of the automatic light-on / off switch device S1, the output contact SW1 of the automatic light-on / off switch S1 is turned off (OFF), and the timer is synchronized with this. T contact point T-1
Is closed. The east illuminance E at this time is quite bright.

In the present embodiment, the above operation is repeated on a daily cycle. That is, in this embodiment, the output contacts S of the automatic light-on / off switch devices S1 and S2 are used.
By performing a logical operation between W1 and SW2 and the contact T-1 of the timer T, the common lamp L is turned on (ON) based on the lighting reference illuminance of the automatic light-on / off switch device S1.
Starts lighting, and the automatic light-on / off switch device S2
A logic operation circuit for turning off the common light L at an off (0FF) timing based on the light-off reference illuminance is realized. As a result, it is possible to obtain an arbitrary timing for turning on and off the light while using a commercially available illuminance-sensitive automatic turning on and off switch.

In this embodiment, the automatic lighting switch is installed on the west side of the apartment and the common light L is installed on the east side. However, it goes without saying that the present invention can be applied to other installation modes. As an example, there can be cited one in which the automatic light-on / off switch of the present invention is installed on the east side of a building, and the lighting installed on the west side of the building is automatically turned on / off based on the illuminance on the east side of the building. Also in such a case, it is possible to obtain an arbitrary turning-on / off timing of the common light. The configuration of the logic circuit and the setting of the reference illuminance for turning on and off the light vary depending on the installation mode of the automatic light-on and light-off device, but those skilled in the art can easily conceive the configuration and the setting.

[0051]

As is clear from the above description, according to the automatic light-on / off device of the present invention, any light-on / off operation characteristics can be simplified while using a commercially available illuminance-sensitive automatic light-on / off switch device. It becomes feasible.

[Brief description of the drawings]

FIG. 1 is a bird's-eye view showing a positional relationship between a device of the present invention applied to an apartment and a common light.

FIG. 2 is an external view showing a mode of attaching the automatic light-on / off device of the present invention to a switch box.

FIG. 3 is a connection diagram showing a circuit configuration of the automatic light-on / off device of the present invention.

FIG. 4 is a ladder diagram showing a logical operation circuit of the automatic light-on / off device of the present invention.

FIG. 5 is a diagram illustrating the operation of the automatic light-on / off device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Apartment 1a East side building 1b West side building 2 Switch box 2a Switch box opening / closing door 3 East side main entrance 4 Common hallway of each floor 5 Exterior wall of the western side building located behind the switch box CTR Control circuit D Timing element E East side illumination L Shared lamp L1 Hallway common light L2 Entrance common light P1, P2 Power bus PT Phototransistor PWR Power supply S1, S2 Automatic light-on / off switch SW1, SW2 Output contact of automatic light-on / off switch T Timer T1, T2, T3 Connection terminal T-1 Timer contact TH1 Illumination reference illuminance (3
00lx) TH2 Lighting-off reference illuminance of the automatic light-on / off switch S1 TH3 Lighting-on reference illuminance of the automatic light-on / off switch S2 TH4 Lighting-off reference illuminance of the automatic light-on / off switch S2 (1
50lx) TM Multi Timer TRC Triac VR1, VR2 Reference Illumination Adjustment Volume W West Illumination

Claims (4)

[Claims] 1. An illuminance-sensitive automatic light-on / off switch device in which one of a lighting reference illuminance and a light-off reference illuminance is set manually when the other is automatically set; A logic operation circuit for performing a logic operation on an output, whereby the lighting load is automatically turned on / off based on a result of the logic operation of the outputs of the two automatic light-on / off switch devices. 2. The automatic light-on / off device according to claim 1, wherein one of the two automatic light-on / off switch devices is set to a desired lighting reference illuminance, and the other is set to a desired light-off reference illuminance. . 3. An automatic light-on / off switch device in which the same specifications are used as the two automatic light-on / off switch devices, and the lighting reference illuminance (or light-off reference illuminance) of one of the automatic light-on / off switch devices is the same as the other automatic light-on / off switch device. 2. The automatic lighting / lighting device according to claim 1, wherein the lighting reference illuminance (or the light-off reference illuminance) is set higher than the lighting reference illuminance. 4. The logic operation circuit calculates an output signal in which a period from an on timing of an output of one automatic light on / off switch device to an off timing of an output of the other automatic light on / off switch device is on. The automatic lighting / lighting device according to claim 1.