JPS6010641B2 - lighting control device - Google Patents

Description

[Detailed Description of the Invention] This invention connects a plurality of lighting bags to each terminal device having a unique address, and connects these terminal devices to a central control device via a common transmission line. The present invention relates to a lighting control device that controls a lighting device via a terminal according to a control pattern programmed in advance.

Recently, as energy prices have soared, various attempts have been made to conserve energy, including the idea of automating the control of lighting to eliminate unnecessary lighting.

To achieve this, it was necessary to precisely control the lighting equipment, which inevitably required complicated wiring work and required a large-scale control device to automatically control the lighting, making it difficult to realize.

In response to this, the following proposals have been made to solve the above-mentioned problems. In this method, controlled lighting devices such as lighting fixtures are connected as multiple loads to each of multiple terminal devices each having a unique address, and these terminal devices are connected to a central control device through a common transmission line. The device is configured to control the illuminated fixture via a terminal according to a control pattern, for example, a lighting pattern, programmed in advance on the device side, and its configuration is shown in FIG. 1 as an example.

In FIG. 1, 1 is a central control unit, to which a plurality of (two in the illustrated example) terminals 3 and 4 are connected via a common transmission line 2. A plurality of (four in the illustrated example) controlled lighting devices, such as lighting fixtures 5a to 5, respectively.
d, 6a to 6d are connected.

Furthermore, a hand switch panel 7 is connected to the terminal 3 of the terminals 3 and 4. This hand switch panel 7 has toggle switches 7a to 7d built therein, and serves as a down switch in a normal lighting circuit. Although the hand switch panel 7 is connected to the terminal device 3 here, it may be connected to the terminal device 4 side. In other words, the hand switch? is connected to terminals 3 and 4 as needed.Normally, since there are many terminals, a hand switch is not connected to all terminals, but only to terminals where it is convenient for wiring. Connected. In this case, the central control device 9 in such a configuration is provided with a central processing unit (hereinafter abbreviated as CPU) la. Level detector 1 that detects the level and converts it into a digital signal
g, a console panel lh for inputting and outputting data, a RAM 1j for storing data, and an interface circuit lk for the transmission line 2 are connected, respectively.

Further, the terminal devices 3 and 4 are provided with lighting equipment 5a to 5d and 6a.
Output circuits 3a to 3d and 4a to 4d corresponding to the output circuits 3a to 3d and 4a to 4d are provided, and the power circuits 3a to 3d9 and 4a to 4d can be made independent or connected to the electric wires 3j and 3j through the relay circuits 3e to 3h and 4e to 4h, respectively.
Connected to 4j.

In addition, these terminals 3 and 4 have a built-in circuit for performing bowling with the central control unit 1, and for example, if they are configured with random logic, they discriminate between a start signal and data for synchronization with the central control unit. A discriminator circuit that reads the sent address signal, a register circuit that reads the sent address signal, a comparator circuit that determines whether this address signal matches its own unique address, a register circuit that reads the sent control signal, and this signal Latch times to latch,
A drive circuit that starts the above-mentioned relay circuit with the output of this latch circuit, a register circuit that reads the signal of the above-mentioned hand switch, a clock pulse circuit that supplies clock pulses to the entire circuit, a counter circuit and a gate for timing the entire circuit. It further includes a line receiver circuit that receives signals from the transmission line, a line driver circuit that sends signals to the transmission line, etc. Next, the exchange of signals between the central control device 1 and the terminals 3 and 4 will be explained.

First, FIG. 2 shows the format of signals to the terminals 3 and 4.

That is, the signals in this case consist of a start signal at, an address signal b, a control signal c, and a hand switch signal d.
Of these, start signal a, address signal b, control signal c
is sent from the central control device 1 to the terminal device 374 side, and the "hand switch signal is a signal sent from the terminal device 3 and mother to the central control device 1. Binary signals are used for these signals, but the FSK tower is used as appropriate. In some cases, modulation such as K is applied.In this case, a demodulator is required in the central control unit and the terminal unit 394.Also, without modulation, the pulse Hi hot w
If "1" and "0" are expressed in , it becomes unnecessary for the demodulator. Parity bits may also be added to increase signal redundancy. In this case, central control device 1 and terminal device 3
, a Kawako parity check circuit is required. On the other hand, the start signal is coded or modulated to distinguish it from the address signal. First, the line driver of the central control unit and the line receivers of the terminals 3 and 4 are enabled, and in this state, when a start signal is sent from the central control unit 1 to the transmission line 2, all the lines connected to the transmission line 2 are enabled. The terminals 3 and 4 stand by to read the next signal sent, and read the next address signal sent.

In this case, the address signal is represented by a binary code greater than the number of terminals. For example, if there are 31 terminals, the address signal is represented by 5 bits.

The read address signal is compared with the address set in each terminal device 3, 4, and only the one that matches reads the next control signal and latches it, and further drives the relay circuit by the drive circuit. .

Here, the addresses of the terminal devices 3 and 4 are arbitrarily set by the address setting circuit, and if the read address signal and its own address do not match, the terminal devices 3 and 4 do not read the next control signal sent, or even if they read it. It does not latch and waits until the next start signal is sent.

In addition, one bit of the control signal is one bit of the output circuit of the terminals 3 and 4.
If there are four output circuits at this time, the control signal has four bits, and "1" and "0" correspond to on and off of the relays of the output circuits. When the reading of the control signal is completed, the central controller 1 disables the line driver and enables the line receiver so as to read the signal sent from the terminal device 3 or 4.

At this time, the terminal 3 or 4 enables the line driver and disables the line receiver to send a signal to the central controller 1. (This switching is done, for example, by counting clock pulses.) Here, the contents of the register circuit that read the signal from the hand switch panel 7 from the terminal device 3 are sent to the transmission line 2, and the central controller 1 Read the switch signal.

Here, 1 bit of the hand switch signal corresponds to the toggle switch Ta to Td, and if there are 4 switches, the hand switch signal has 4 bits, and "1" and "0" correspond to on and off of the switch. .

Through the above process, the first exchange of signals between the terminals 3 and 4 is completed, and the central control unit 1 sends the next signal.

In this way, the central controller 1 sequentially and periodically controls the terminals 3 and 4.
and exchange signals. By the way, in the central control device 1, the hand switch signal sent from the terminal device 3 is sent to the CPU.
1a, and from the central control device 1 to the terminal device 3
, 4 becomes the output of the CPU 1a, but other inputs to the CPU 1a include signals from the timer 16 and signals from the optical sensor 8. A signal from the timer lb is input to the CPU 1a at the time set by the time limit circuits lc to lf. This timer lb is used when controlling lighting equipment according to a determined time schedule. Further, the optical sensor 8 detects daylight in a building such as a building, and is installed near a window outdoors or indoors, and inputs an analog signal corresponding to daylight to the level detector 1g. The level detector 1g compares a preset reference value with the signal from the optical sensor 8, converts it into a digital signal, and inputs it to the CPU 1a. This number of levels may be two or more. The light sensor 8 is used to control the lighting equipment near the window depending on the intensity of daylight. In this manner, the CPU 1a receives these signals and performs logical operations according to a predetermined program to determine control signals for each of the terminals 3 and 4.

This program is normally written in a ROM (read-on IJ memory) within the CPU 1a. On the other hand, the lighting pattern data and hand switch assignment data as reference data are R
It is written to AM1 j.

This data is normally written into the RAM 1i manually from the console panel lh using a keyboard or the like. In addition to this, the RAM 1j occupies an area of data indicating the state of the hand switch 7, data indicating the state of the timer circuits lc to lf, and data indicating the level state from the optical sensor 8. Next, the memory format of RAM1i is shown in FIG.

In FIG. 3, lighting pattern data and hand switch assignment data are written for each output circuit in a. The output circuit address is obtained by assigning numbers to all the output circuits (4 circuits in the illustrated example) of each terminal device 3 and 4. For example, if the terminal device is 16
If there are 16x4 = 64 output circuit addresses. Therefore, the control signal for one terminal device consists of control signals for four output circuit addresses. Next, we will explain the lighting pattern data and hand switch allocation data. Here, the explanation will be based on a plan view of an office floor where lighting fixtures are arranged as shown in FIG. 4, for example. That is, in FIG. 4, lighting fixtures #1 to #64 are arranged, and each fixture has a different output circuit address. Of course, each device is connected to some terminal (not shown). Also #1
It is assumed that the appliance #8 is placed near a window and daylight comes in through the window. This office floor 1 is divided into eight areas, for example, as shown by dotted lines, and each area can be turned on and off from a hand switch. The data that determines which switch each appliance belongs to is stored in the area of hand switch assignment data in Figure 3a.
Written in hexadecimal code.

In this case, since there are eight switches, 4-bit data will be written. When there is a change in the area classification outside the hand switch data, it can be rewritten manually from the console panel lh. Next, a lighting pattern is determined in advance in order to control the lighting equipment shown in FIG. 4 according to the time schedule and the degree of daylight.

For example, in FIG. 5, the hatched appliances are turned off.

Figure 5a shows the lighting pattern during work when the daylight level is in town, Figure 5b shows the lighting pattern during work when the daylight level is 0, and Figure 5c shows the lighting pattern during work when the daylight level is 0. Pattern d in FIG. 5 is a night lighting pattern.

Here, as the daylight level increases, the daylight becomes stronger, and FIG.

In Figure 5b, the daylight is weaker than in Figure 5a, so the number of appliances that are turned off is reduced. Which of these lighting patterns is selected is determined by the CPU 1 based on a combination of inputs from the timer time limit circuits lc to lf and inputs from the optical sensor 8.
It is calculated and decided according to the program in a.

Therefore, in the lighting pattern data area in Figure 3a, on/off data for each lighting pattern is written for each output circuit address.For example, if there are 9 types of lighting patterns, on/off is expressed as "1" or "0". It will be written in bit-wise manner. When changing the lighting pattern outside of the lighting pattern data, it can be manually written from the console panel lh. In addition, FIG. 3b shows hand switches (there are eight switches here).

) shows whether it is on or off, FIG. 3c shows the state of the timer time limit circuits lc to lf (6 channels in this example), and FIG. 3d shows which level the level from the optical sensor 8 is. Each of these areas is written in bit correspondence (three levels in this example). for example,
In Fig. 3b, it is "1" if the switch is on, "0" if it is off, in Fig. 3c it is "1" if the timed circuit channel is on, it is "0" if it is off, and in Fig. 3d it is noon. The address corresponding to the light level is "1" and the others are "0", and as a matter of course, in FIGS. 3c and 3d, only one address is "1" and the others are "0".

Further, the hand switch data sent from the terminal device to the central control unit is written into the memory shown in FIG. 3B each time.
In this way, the memories shown in FIGS. 3a, b, c, and d are used as reference tables for the CPU 1a to determine the control signals to be sent to the terminal 3 and the turtle.

In other words, the CPU 1a determines the lighting pattern based on a predetermined program by referring to FIG. Control signal for one output circuit ('GI' if on, '0' if off) by referring to Figure 3 a and b for the hand switch address and on/off of the hand switch for the address.
). When these four control signals are collected, the control signals for the terminals to which these four output circuits belong have been determined, and are sent to the terminals 3 and 4. Therefore, if this operation is repeated in sequence, each lighting fixture will be automatically controlled according to the degree of daylight.

FIG. 6 shows an example of a lighting pattern obtained in this manner. In other words, Figure 6 shows an example of a temporal change in the lighting pattern in a certain area, and the time period is T, ~
It is divided into six sections (T6), and the lighting pattern is programmed to change for each time period. Here T,
T2 and T4 are before work, T2 and T4 are during work, L is lunch break, T5 is after work, and circles are night time. The vertical axis is the number of devices that are turned on. In this case, during the time periods T2, Circle, and L, the lighting pattern is changed by input from the optical sensor.
The number of devices that are turned on may change, and T, ~
During the time period T6, the lighting pattern may be controlled by hand switch operation. In addition, as mentioned above, changing the hand switch that controls the appliance or changing the lighting pattern can be done simply by changing the software, and the wiring from the central control unit to the terminal equipment is also necessary for sending signal lines. This is a great advantage in terms of wiring work as it only requires a chisel. However, such a lighting control device has the following disadvantages.

In other words, when the lighting pattern data for a certain output circuit, that is, a lighting fixture, and the hand switch data to which this fixture is assigned are different, the problem is which one should be prioritized.

Specifically, if the lighting pattern data for a certain appliance indicates that the appliance is on, but the hand switch data indicates that it is off, the problem is whether to turn the control signal on or off. In contrast, in the past, it was common to adopt a method of giving priority to off.

That is, if either one is off, the control signal is turned off. Therefore, if this is done, an appliance that has been turned off based on the lighting pattern data cannot be turned on from the hand switch, whereas an appliance that has been turned off based on the lighting pattern data can be turned off using the hand switch data.

The reason for adopting this method is that if a device that has been turned off based on lighting pattern data can be turned on using a hand switch, for example, if the hand switch is turned on in the morning, it tends to remain on all day long. Even if you try to control the lighting pattern with a timer or light sensor, the lights may not turn on or off and you may not be able to achieve the expected power savings.

Therefore, if priority is given to off as described above, even if the lighting pattern is on, the fact that the hand switch is off means that the corresponding appliance does not need to be lit, which is significant insofar as this is the case. However, in reality, for example, if you want to turn on only certain sections, for example, 6 sections in Figure 4, at night after work due to overtime or other reasons, you need to be able to write data for the night lighting pattern, and this can be done from the console panel to the fixture 1.
It is extremely troublesome to manually input data for each unit, and it is also extremely inconvenient to have to return to the original night lighting pattern for the next day. For this reason, when controlling the lighting pattern using a timer, it is not possible to adopt a lighting pattern that turns off almost all the appliances, such as the nighttime pattern. This had the disadvantage that turning it off was left to the hand switch, making it difficult to control the lighting pattern using a timer. Furthermore, as a conventional example of this type, there is Tokuko Shobara Ichimaku No. 78. In other words, this device receives and stores the signal from the operation switch with a signal repeater, and uses the program setting device built into the signal repeater to arbitrarily set the correspondence between the operation switch and each load control section. A desired load control section is controlled using a signal from the load controller.
However, with something like this, if you want to change the pattern setting of a certain block for a certain period of time, you have to rewrite the data in the program setting device, as described above, and in the end, you end up relying on a hand switch etc. in such cases as well. . This invention was made to eliminate these drawbacks, and includes a so-called temporary function that changes the lighting pattern of the lighting device assigned to the switch in the central control unit to another lighting pattern for a certain period of time by operating a predetermined switch. The purpose of the present invention is to provide a lighting control device that can respond to changes in the lighting pattern with simple operation by adding a function, and can effectively stop the operation of unnecessary lighting devices, which is also effective from the point of view of power saving. do.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 7 shows an example in which the present invention is applied to a lighting control device, and the same parts as in FIG. 1 are given the same reference numerals. In this case, a so-called temporary switch panel 9 is connected to the terminal device 3 of the terminal devices 3 and 4 instead of the handheld switch panel 7, for changing the lighting pattern of the lighting equipment to another lighting pattern for a certain period of time. This switch panel 9
is composed of a group of push switches (momentary switches) 9a to 9d that are closed only when pressed. Further, the terminal device 3 is provided with the same number of flip-flops 10a to 10d as the switch groups 9a to 9d.

These flip-flops 10a-10d operate in reverse every time the corresponding switches 9a-9d are pressed, and the outputs of these flip-flops 10a-10d are sent to the central control unit 1 and written to the RAM area shown in FIG. 3b. be included. Here, the CPU 1a of the central control device 1 is conventionally operated as shown in FIG.
However, in this invention, changes in the state are also looked at.

Then, when a change in state occurs, the control signals for the appliances assigned to the switch groups 9a to 9d of the temporary switch panel 9 that have changed are changed from the regular lighting pattern data to another temporary lighting pattern data, and the terminal device 3,
Make sure to send it to the 4th side. In this case, a new area for writing several types of temporary pattern data is added to FIG. 3a. Further, the central control device 1 is provided with another timer 11. This timer 11 has a timer function corresponding to the switch groups 9a to 9d of the temporary switch panel 9, respectively.
The temporary lighting pattern data is made to last as a control signal until a predetermined time has elapsed by the operation of d, and the control signal of the CPU 1a is changed to the original regular lighting pattern data after the time has elapsed. ing. The timer 11 also changes the control signal to the original regular lighting pattern data even when the states of the switch groups 9a to 9d change before the time is up. Next, the operation of the apparatus of the present invention constructed in this manner will be explained.

In this case, the exchange of signals between the central control unit 1 and the terminals 3 and 4 is the same as described above, so a description thereof will be omitted.

In this state, when any switch 9a to 9d on the temporary switch panel 9 is operated, the corresponding flip-flops 10a to 10d operate in reverse, and their output is sent to the central controller 11 and stored in the RAM 1j. written.

Then, the CPU a changes the control signal for the appliances assigned to the operated switches 9a to 9d from the regular lighting pattern data to the 8U temporary lighting pattern data due to the state change at this time, and outputs the control signal to the terminal device 3, 4.
send to the side.

At the same time, the timer 11 starts and continues to send the control signal to the temporary pattern data until a preset time has elapsed, and then the timer 11 sends the time-up signal to the CPU.
Waiting for the control signal to be sent to 1a, the control signal is changed to the original regular lighting pattern data. FIG. 8 shows an example of a lighting pattern obtained in this manner. In other words, FIG. 8 shows an example of a temporal change in the lighting pattern of a certain area, and the time periods are divided into six time periods L to T6, and the lighting pattern is programmed to change for each time period. Here, T is before work, T2 and T4 are during work,
t indicates the lunch break, and T5 indicates the night time period. In such a lighting pattern, when the temporary switch 9 is operated at time L', the lighting pattern is changed to another temporary pattern, for example, full lighting, and this state is maintained until time t2 when the timer 11 times up, and the time ratio is 2. The lighting pattern will automatically change to the regular night lighting pattern.

Furthermore, if the temporary switch 9 is operated again at time t3, the lighting pattern is changed to the temporary 'lighting pattern again, but if the temporary switch 9 is operated again at time t41 without crossing the time river 5 where the timer 11 times up. At time t4, the lighting pattern is changed to the regular nighttime lighting pattern. Therefore, according to such a configuration, by operating the temporary switch, it is possible to easily change from the regular lighting pattern to another temporary lighting pattern, for example, full lighting, and if left in this state, it is possible to turn off the light for a predetermined period of time. The lighting pattern can be automatically returned to the normal lighting pattern afterwards, and if the temporary switch is operated before the specified time, the lighting pattern can be immediately returned to the normal lighting pattern, so the lighting pattern data can be changed on the console panel as before. In addition, unnecessary lighting equipment can be effectively turned off, resulting in extremely favorable results in terms of power saving.

Next, FIG. 9 shows another embodiment of the present invention, in which the same parts as in FIG. Device 1
In this way, the function of transmitting data from the terminals 3 and 4 to the central control device 1 becomes unnecessary, which reduces the cost accordingly. Although the flip-flop shown in FIG. 9 is built into the temporary switch 9, it may also be provided on the central control unit 1 side. However, even with this arrangement, the same effects as those of the above-mentioned embodiment can be expected. It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications within the scope without changing the gist.

For example, in the above-described embodiment, the timer 1 1 has a timer function corresponding to the switch groups 9a to gd of the temporary switch panel 9. It may be possible to forcibly return to the original regular lighting pattern. In addition, in the above, the time period for which the temporary lighting pattern lasts after operating the temporary switch 9 is determined by the timer 11, but from the time the temporary switch 9 is operated until the time when the time zone changes (as shown in the example in FIG. 8). In other words, T, → L, T2 → L, T3 → L, T5 → T
6, T6→T. ) The temporary lighting pattern may be maintained. In this way, timer 1
1 becomes unnecessary. In this case, if the period from L to T is too long, a new time limit may be set in the middle. Furthermore, although the flip-flop is realized by electrical means in the above description, it can be replaced with a toggle switch (alternate switch).

In this case, the relationship between the direction in which the toggle switch is tilted and the lighting pattern is completely random, which may cause some confusion in operation, but it has the advantage of being inexpensive. Furthermore, the above-mentioned timers lb, 1 and 1 time limit circuits lc to lf do not need to be realized as hardware and can be implemented as C
For example, a method of counting commercial power supply synchronization pulses may be used in the program of the PU 1a.

Additionally, a secondary hand switch can be used in conjunction with the temporary switch. In this case, in addition to several types of temporary pattern data, an area for writing temporary switch assignment data is added to Fig. 3a, and in addition to Fig. 3b, the states of the temporary switches similar to Fig. 3b are recorded. All you have to do is set up an area where you are afraid. As described above, according to the present invention, by adding a so-called temporary function that changes the lighting pattern of the lighting device assigned to the switch to another lighting pattern for a certain period of time by operating a predetermined switch, the lighting can be turned on with a simple operation. It is possible to provide a lighting control device that can respond to changes in patterns, can effectively stop the operation of unnecessary lighting devices, and is effective in terms of power saving.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a conventional lighting control device.
Fig. 2 is a diagram showing the format of the transmission signal used in the same device, Fig. 3 a, b, c, and d is a diagram showing the format of the RAM used in the same embodiment, and Fig. 4 is an office where the same device is applied. A plan view of the first floor, Figures 5a, b, c, and d are diagrams for explaining the control pattern of the device, Figure 6 is a diagram showing an example of a change in the control pattern of the same bag counterfeit, and Figure 7 is a diagram for explaining the control pattern of the same machine. FIG. 8 is a block diagram showing one embodiment of the present invention, FIG. 8 is a diagram showing an example of control pattern changes in the same embodiment, and FIG. 9 is a block diagram showing an embodiment of the present invention. 1...Central control unit, la...CPU, l
b, 11... Timer, lc~lf...
・Time limit circuit, 1g... Level detector, lh... Console panel, l j... RAM, l k... Interface circuit, 2... Transmission line, 3, 4...・
...Terminal, 53-5d, 6a-6d...Lighting equipment, 7...Hand switch panel, 7a-7d
... Toggle switch, 8 ... Optical sensor, 9 ... Temporary switch panel, 9a to 9d ... Push switch, 10 ... Flip-flop. Figure 1 Figure 2 Figure 4 Figure 3 Figure 6 Figure 5 Figure 5 Figure 7 Figure 8 Figure 9

Claims (1)

[Scope of Claims] 1. A lighting device is connected to each of a plurality of terminal devices each having a unique address, and these terminal devices are connected to a central control device via a common transmission line, and a lighting device is programmed in advance. In the lighting device that controls the lighting device according to a lighting pattern, a state change corresponding to the operation of a predetermined switch connected to the central control device or a terminal device is inputted into the central control device, and the central control device controls the above-mentioned operation. 1. A lighting control device, characterized in that the lighting device is controlled by changing a control signal for the lighting device assigned to the switched switch from a regular lighting pattern to another lighting pattern for a predetermined period of time. 2. The lighting control device according to claim 1, wherein when the state of the switch changes again before the predetermined time has elapsed, the control signal is returned to the normal lighting pattern. 3. The lighting control device according to claim 1 or 2, wherein the switch is a combination of a momentary switch and a flip-flop. 4. The lighting control device according to any one of claims 1 to 4, wherein the central control device controls the lighting device according to a lighting pattern programmed in advance by an external signal. 5. The lighting control device according to claim 4, wherein the external signal is a signal from at least one of a timer and a light sensor.