JPH0241880B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method for forcibly switching off a predetermined number of lighting lights from among a plurality of lighting lamp groups turned on by a lighting command signal before receiving an all-lights-off command signal. This invention relates to a lighting thinning operation device that turns off the lights midway through the process.

[Prior art] For example, in night lights, security lights, etc., all of the lights are turned on in the evening by a lighting command signal from an automatic flasher, etc., and then all lights are turned off in the morning by a command signal to turn them all off from the same automatic flasher, etc. It is often the case that you want to forcibly turn off some of them midway through the process.

For example, if we take fluorescent security lights that are a set of two lights that are controlled by automatic flashers, conventional ones that do not have a built-in thinning operation device, both of these security lights have automatic flashers that turn off in the evening. After the lighting illuminance is detected and the lighting command signal is issued, the lights continue to be lit until the all-lights-out command signal is issued via the automatic flasher in the morning.

However, even if both lights are turned on from dusk until about 10 p.m., it is not necessarily necessary to keep both lights on until late at night, when there is no foot traffic.

In fact, it is rather undesirable from the standpoint of energy saving.

Therefore, as mentioned above, conventionally, after a lighting command signal is issued from an automatic flasher and before a command signal for all lights to be turned off is issued by an automatic flasher in the morning, a certain amount of time has elapsed after the lights are turned on. A thinning operation device was devised to forcibly turn off one light mid-way, that is, to "thin out" the light.

In other words, after both lights are turned on in response to the lighting command signal from the automatic flasher in the evening, the one light that is set to be thinned out is forcibly turned off midway when the scheduled time set in the timer has elapsed. be.

[Problems to be solved by the invention] However, in the conventional thinning operation device described above, the number of lighting lights to be thinned out is always one fixed light, and this does not change even if the day changes. The drawback was that there was a large difference in lifespan between those who did not have it and those who did not. In other words, the lighting lights that are turned on all night without being thinned out are more likely to burn out because the cumulative lighting time is longer.

And these drawbacks lead to virtually doubling the maintenance effort required. In other words, even if the light that is more likely to burn out burns out, it will be necessary to dispatch workers frequently to replace it, while the light that is being thinned out will eventually burn out, so it will be difficult to replace it. This means that workers will have to be dispatched for this purpose.

The present invention has been made in view of this point, and in response to the conventional two-light security light described above, the two lighting lights are thinned out every day, or at least every few days. If we extend this to systems where not only two lights but multiple lights are controlled by a single control circuit system, at least only a few lights that are the same for many days will be subject to thinning. It is an object of the present invention to provide a thinning operation device that can select and update the combination of illumination lights to be thinned out, and thereby equalize the lifespan of all the illumination lights.

[Means for Solving the Problems] In order to achieve the above object, the present invention assumes that one cycle is from the generation of the lighting command signal to the generation of the all-lights-out command signal (for example, from the time when the lights are turned on in the evening to the time when the lights are turned off in the morning of the next day). cycle), each time the cycle is updated, or at least every several cycles, a combination changing circuit that determines the illumination lights to be thinned out from among all the illumination lamp groups according to a set thinning factor. will be established. In other words, after the set time has elapsed after the lighting command signal was generated,
or a forced thinning signal generating circuit that issues a forced thinning signal at a set time; and a thinning signal generation circuit that generates a forced thinning signal at a set time; A decimation setting circuit to set; corresponds to the decimation number set by the decimation setting circuit from among the plurality of illumination lamp groups for each cycle starting from the generation of the lighting command signal, or every few cycles; a combination change circuit that changes the combination that determines the number of illumination lights to be thinned out; among the plurality of illumination light groups, only the illumination lights corresponding to the combination specified by the combination change circuit are sent to the forced thinning signal; To provide an illumination light thinning operation device comprising: a circuit for forcibly extinguishing the light midway through;

[Function] Since the present invention is configured as described above, in particular, due to the existence of the combination changing circuit, there is no need to always thin out only a certain number of illumination lamps from among a plurality of illumination lamp groups. The combination of lighting lights to be thinned out can be changed. Therefore, in the end, a plurality of illumination lights can be used on average, and the lifespan can be made uniform.

To explain the operation of the thinning operation device of the present invention, all the lights in a plurality of lighting lamp groups are once turned on by a lighting command signal via an automatic flasher or the like.

After the light is turned on, if the time set by the user or a preset time has passed, or at 10 p.m. or 11 p.m.
A forced thinning signal is generated by the forced thinning signal generation circuit at a set time such as 0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.

On the other hand, the decimation number to be decimated is set so that it can be changed by the user using a decimation number setting circuit, or fixedly set by hardware. For example, out of a total of eight lights, there are three or four lights. If there are only two lights in total, the setting argument is, of course, "1", so it can be set as a fixed value in terms of hardware.

Therefore, when the forced thinning signal is generated, the illumination lights corresponding to the thinning number set above are forced to be turned off midway through, but during that time, a number of combination change circuits corresponding to the thinning number are used in the circuit system. There is.

The combination change circuit can change the combination at the beginning or end of each cycle or every several cycles, or at any appropriate point in the process using known technology. The lighting lights that are thinned out as the thinning signal is generated are not always the same.

For example, if there are eight lighting lights #1 to #8 and you want to thin out three of them as described above, in a certain cycle, #1,
Lighting lights #3 and #7 have been thinned out, but in the next cycle, lighting lights #2, #4, and #8 will be thinned out.
It can be done as follows. Of course #1,
If there are only two #2 lights, changing the combination every cycle or every few cycles means "2"
Since the combination that takes "1" from is changed, it means that one of these two illumination lights is alternately thinned out.

[Embodiment] FIG. 1 shows a basic embodiment of the thinning operation device of the present invention, which is intended for improvement of a two-lamp type security light. Therefore, #1 illumination light 16, #2 illumination light 17
One of the two lights is alternately thinned out, and the on/off command signal Si is obtained through the contact 15 of the automatic flasher.

As stated in advance, in this embodiment, the thinning argument setting circuit sets the thinning argument to "1" in hardware,
Further, the combination changing circuit alternately selects either the #1 illuminating lamp 16 or the #2 illuminating lamp 17 in order to change the combination of selecting one lamp from two lamps. The #2 flip-flop 13 mainly has the functions of such a thinning parameter setting circuit and a combination changing circuit.

To explain the operation in detail below, during the daytime, when the automatic flasher (not shown) detects sufficient illuminance, the automatic flasher contact 15 in this embodiment as an example of the lighting switch circuit 15 is in an open state. It is in.

Therefore, the lighting/extinguishing circuit 14 of the #1 lighting lamp 16
Relays RY1 and RY2 for turning on and off each illumination light in the light on/off circuit 14b and #2 are both in a demagnetized state,
The relay contacts ry1 and ry2 are both opened to turn off the corresponding illumination lights 16 and 17.

Also, timer 10 and #1 flip-flop 1
2 is reset by a reset signal Ss of, for example, logic "H" from a reset/start signal generator 19 which outputs a reset signal when power is not supplied from an AC 100V line.
Note that when the signal Ss becomes logic "L", this signal Ss can be considered as a start signal.

However, the DC power supply 18 is in operation even during the daytime, and the #2 flip-flop 13 and the NAND gates G1 and G2 receive power supply.

In this initial state, the first NAND gate G1 receives at its one input the Q output of the #1 flip-flop 12 which is in the reset state.
The output logic is set to "H".

On the other hand, of course, either the Q output or the output of #2 flip-flop 13 is at "H". For convenience, it is assumed here that the Q output is "L" and the output is "H".

The timer 19 is of a presettable type, and the time can be set by the user using a time setter 11 such as a suitable digital switch. This set time Tx represents the total lighting time from the lighting point to forced thinning.

When the automatic blinker detects the illuminance at which the lighting lamp should be turned on in the evening, the contact 15 is turned on.

Then, due to the above initial conditions, both inputs of NAND gate G1 are logic "L", and of NAND gate G2, one input is logic "L" and the other input is logic "H". Even so, there is no change in the fact that NAND is not established, so the outputs of both NAND gates G1 and G2 both become logic "H", and the #1 light-on/off circuit 14a,
and a switching circuit of #2 lighting/extinguishing circuit 14b,
For example, both the thyristor circuits SCR1 and SCR2 are turned on, and the respective relays RY1 and RY2 are driven to close their contacts ry1 and ry2, thereby lighting both illumination lights 16 and 17 #1 and #2.

At the same time, the timer 10 that has been reset starts to measure or count time.

Eventually, the time Tx set in the time setting device 11
When , a time-up signal Su of logic "H" is generated at the Q output of the timer 10.

This signal Su is applied to the T input of #1 flip-flop 12, which is also out of reset, inverting its Q output to "H" and inverting its output to "L".

Therefore, the inversion of the output to "L" is used as a hold signal for timer 10, and timer 1
0 is stopped at time-up and the logic "H" of the Q output is applied together to one input each of both NAND gates G1 and G2.

At the same time, the time-up signal Su is also applied to the T input of the #2 flip-flop 13 to invert its output.

Therefore, the logical value relationship between the Q output and the output of #2 flip-flop 13 under the above-mentioned initial conditions is reversed, and the Q output, which was "L", becomes logic "H",
The output which was "H" becomes logic "L".

Then, the NAND gate G1 obtains a NAND signal, and its output falls to logic "L", which becomes the forced thinning signal So1 and is applied to the thyristor circuit SCR1 in the #1 light-on/off circuit 14a. is turned off to release the excitation of relay RY1, and its contact ry1 is opened to forcibly turn off the #1 illumination light 16 midway through.

On the other hand, since both input logics of NAND gate G2 are "H" and "L", which are different, its output logic remains "H" as before, and therefore #2 lighting lamp 17 lights up. Continue.

In this way, crime prevention lighting is provided only by the #2 light 17 until the early morning hours, but when the surrounding environment illuminance rises beyond the threshold illuminance, the contact circuit 15 of the automatic flasher opens, and the #2 light 17 is also turned off.

Along with this, the reset/start signal generator 1
The reset signal Ss is sent again from 9 to reset the timer 10 and #1 flip-flop 12, and the circuit system returns to the initial state described above.

However, if we consider the period from turning on in the evening to turning off in the morning as one operating cycle of this circuit system, in the initial state of this second cycle, compared to the initial state of the first operating cycle described above, # The logical relationship between the Q output and the output of the two flip-flops 13 is reversed.

That is, in the initial state of the second cycle, the Q output of #2 flip-flop 13 is logic "H" and the output is logic "L", so the second cycle due to the operation of the automatic flasher When the cycle restarts, it is now the signal So2 of the second NAND gate G2 that goes to logic "L" as timer 10 times up. In other words, this time, instead of the #1 illumination light 16, the #2 illumination light 17 is forced to be turned off.

Also, as is clear from the above, the initial state of the third cycle is exactly the same as the initial state of the first cycle, #2 flip-flop 1
The Q output of 3 becomes logic "L" and becomes a standby state, the fourth time is the second time, the fifth time is the first time,
The third time, and so on, the illumination lights to be forced to be turned off midway through are alternately selected for each cycle update.

Looking at the embodiment shown in FIG. 1 above in view of the gist of the present invention, only one of the forced thinning signals, So1 or So2, is output, so the thinning factor is set to "1" in terms of hardware. It can be seen that the settings are fixed.

Also, choosing one light from two lights means
This means that either the #1 or #2 illumination lights 16, 17 are selected alternately, and it can be seen that the first illustrated embodiment entrusts the combination change to the #2 flip-flop 13 accordingly.

In the second embodiment shown in FIG. 2, eight lighting lights are controlled simultaneously, and n lights can be selected and thinned out among the eight lighting lights.

The user can set the decimation parameter n (1≦n≦7) using a decimation parameter setting device 22 such as a suitable dip switch.
This is done by a shift register 21 connected like a ring counter. When the user sets n, it is applied as decimation data to preset data inputs P1-P8 of shift register 21.

Although parts that can be used in common with the first illustrated embodiment or parts that can use similar circuit elements are not shown in this second embodiment, hereinafter, such parts are shown in the second embodiment.
The operation of the second embodiment will be described with reference to FIG. 1, including the circuit elements not shown in the drawings, using the reference numerals.

Switch circuit 15 (first
When one operation cycle is started, such as by closing the reset/start signal generator 1,
A reset signal Ss is issued from 9 (Fig. 1),
Timer 10, flip-flop 24, shift
Register 21 is reset.

If the edge of the reset signal Ss is considered significant and the flip-flop 24 is reset, the flip-flop 24 is reset by the edge of the reset signal Ss, and then the reset is released.

Then, since the set terminal of flip-flop 24 is grounded, its Q output becomes logic "L" and its output becomes logic "H".

The logic "H" output of this flip-flop 24 becomes a set signal for the timer 10, and the timer 10 starts measuring or counting time from this point, and this means that the time Tx set by the time setting device 11 described above has elapsed. It will continue until

On the other hand, the one-shot delay circuit 25 outputs a somewhat delayed one-shot pulse, which is applied to the clock input of the #1 counter 27 to read the contents of the #1 counter held at the end of the previous cycle. It is incremented by 1" and becomes "M". In this embodiment, this counter 27 has four bits, so the least significant bit Q ₀
The content of the count can be represented by four digits from Q3 to the most significant bit Q3.

Eventually, when the timer 10 finishes counting the time value Tx set therein, a time-up signal Su is output as its output.
This time-up output Su is applied to a set input ST of an oscillator 23, which causes the oscillator 23 to oscillate a clock CP of an appropriate predetermined period.

At this point, the A=B output of the digital comparator 29, which will be explained in detail later, means that both input data A and B are
Since ≠B, the logic is “L”.

Therefore, the clock CP generated by the oscillator 23 inverts the A=B output of the comparator 29 and passes only through the AND gate Gb, which receives the other input, and also passes through the subsequent OR gate Gc. and is applied to the clock input CK of the shift register 21.

Prior to this, the monostable multivibrator MB was triggered at an appropriate timing, such as the falling edge of the reset signal Ss at the start of the cycle, a load input was given to the shift register 21, and the setting was made using the thinning parameter setter 22. After loading the thinned-out data into the shift register 21, the shift register 21 is set to an enabled state at the falling edge of the vibrator Q output, that is, at the rising edge of the output.

Therefore, the shift register 21 starts shifting the preset data every time it receives a clock from the oscillator 23.

For example, the preset data is the lowest bit P1.
If the value is “11100000” when multiplied by the most significant bit P8, the output bit
Ports Q1 to Q8 become "01110000", and the next clock input becomes "00111000". That is, it is shifted one bit at a time, and the carry is around.

On the other hand, the clock input is #2 counter 2, which has been reset by the reset signal at the start of the cycle.
It is also applied to the clock input CK of No. 8, and its content data B is incremented by "1".

As mentioned earlier, the content A of the #1 counter 27 of the content data A, which is the value "M" obtained by adding "1" to the content of the previous cycle and the above # 2 counter 28
The content B of the #2 counter 27 is compared in the digital comparator 29, and therefore, when the content B of the #2 counter 27 counts the clock from the oscillator 23 and becomes the same as the content A of the #1 counter 27 in this cycle, the comparison is completed. The A=B output of the device 29 becomes logic "H" as a result of the condition being satisfied.

Then, the AND gate Gb, which inverts this A=B output and receives it at one end, has a logic "L" output.
In other words, from that point on, the oscillator 23 is fixed to both the #2 counter 28 and the shift register 21.
Clocks CP from will no longer be given.

At the same time, with the next clock CK from the oscillator 23 after A=B, an AND logic is established at the AND gate Ga, and the T of the flip-flop 24 is
Input a logic "H" pulse to the input.

Therefore, the output of the flip-flop 24 becomes logic "L" and serves as a stop input for the oscillator 23, stopping the oscillator 23, while the Q output becomes "H" and there are as many as the number of lighting lights. Logic "H" is applied to all inputs of NAND gates G1 to G8.

As a result, the eight output ports Q1 to Q8 of the shift register 21 perform a shift operation according to the clock generated by the oscillator 23 from the preset data taken in at the start of the cycle as described above. Since the state is the same as when the clock was stopped at the time of input, for example, if "00001110" was output from the lowest bit port Q1, the flip-flop in the NAND gate array G1 to G8 In combination with the logic “H” output from 24, NAND logic can be adopted in G5 and G.
6, G7, and forced thinning signals So5, So6, So are output from these three NAND gates G5 to G7.
7 is issued.

These signal groups So1, ..., So8 are the same as in the first illustrated embodiment, except that the number of lights is increased to eight, so the turn-on/off circuits 14a, 14b, 14a and 14b are dedicated to each of the lighting lights.
..., 14h, in the above case #5, #6,
The illumination light #7 will be forcibly turned off during the process.

The remaining lighting lights are connected to the morning switch circuit 15 (1st
The light is turned off by the opening operation shown in the figure, and the circuit system shown in the second figure also returns to its initial state.

Then, from the evening of the next day, the above-mentioned cycle starts again, but at that time,
As for the contents of the #1 counter 27, the contents A becomes "M+1" due to the described mechanism, so even if the preset data is the same, the clock input from the time when the shift register 21 starts the shift operation until it substantially stops. The number is different from the previous cycle described above, and therefore the NAND gate that performs NAND logic when the Q output of the flip-flop 24 becomes "H" is also different from the above. In this way, it is possible to forcibly turn off illumination lights in combinations different from those described above.

However, #1 counter 27 and #2 counter 28
When a 4-bit type is used, on the day when the content of #1 counter 27 changes from "15" to "0", the same combination of lighting lights as the previous day will be thinned out.
The next day, the combination will be different, so there will be no problem. Conversely, it is also possible to intentionally change the combination every few days using known electronic circuit technology.

In addition, in the case of the configuration of the illustrated embodiment, settings such as thinning out every other illumination light can be made in accordance with data input via the thinning number setting device 22, in addition to simple combinations.

Furthermore, based on the example shown in FIG. 2,
It is obvious that the number of illumination lights to be controlled at one time is not limited to eight, but can generally be N.

Also, as is clear from the above-described operation, the present invention is not limited to those that obtain a lighting command signal and a total lights-out command signal using an automatic flasher as in the conventional example described above, but also applies to various sensors. 15 switch circuits including applied circuits and manual operation
Considering this, the present invention can be applied to any case where an arbitrary number of illumination lamps are to be thinned out in one cycle starting from the generation of the lighting command signal from the switch circuit 15.

Furthermore, both of the above two embodiments are constructed as so-called fixed-time type devices that perform thinning operation after the set time Tx has elapsed after lighting.
0 to a synchronized type, or to make the time from the time when the lighting signal is generated until the forced thinning time display signal corresponding to the time-up signal Su is output variable in consideration of changes in the sunset time each day. A time type circuit system can also be adopted.

Of course, the light-on/off circuits 14a, . . . for each illumination light are
may take any configuration other than that shown, and the illumination lamp itself is not limited to the above-mentioned fluorescent lamp, but may be an incandescent lamp, a mercury lamp, or the like.

[Effects of the Invention] According to the present invention, as a device for thinning out an arbitrary number of lighting lights during a time when they should normally be kept on, such as from evening to early morning, a combination of lighting lights to be thinned out can be used. Since a device that can be changed can be provided, it is possible to equalize the lifespan of all lighting lamps, and as a result, maintenance efforts can be greatly reduced.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are schematic diagrams of first and second embodiments of a lighting light thinning operation device according to the present invention, respectively. In the figure, 10 is a timer, 11 is a time setter, 1
2, 13, 24 are flip-flops, 14a,
14b, . . . are illumination light on/off circuits, 16 and 17 are illumination lights, 21 is a shift register, 22 is a decimation parameter setter, 23 is an oscillator, 27 and 28 are counters,
29 is a digital comparator.

Claims (1)

[Scope of Claims] 1. A forced thinning signal generation circuit that issues a forced thinning signal after a set time has elapsed or at a set time after the lighting command signal is generated; A plurality of illumination lights turned on by the lighting command signal; A decimation number setting circuit which sets a decimation number to forcibly turn off the lights midway through the above-mentioned forced decimation signal; a combination changing circuit for changing a combination for determining a number of illumination lights to be thinned out in a number corresponding to the thinning number set by the thinning number setting circuit from among the plurality of illumination light groups; A lighting light thinning operation device comprising: a circuit for forcibly extinguishing only the lighting lights corresponding to the combination specified by the change circuit in the middle using the forced thinning signal;