JPS5826877B2 - Indoor load control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides operation switches Sa, Sb... and lighting loads.
Load control unit R11j P1□ is installed corresponding to each indoor load such as 11j "1□... and air conditioning load.
In a load control system consisting of ... and a signal repeater M,
Start synchronization pulse from signal repeater M...SPi.

S P 1 + 1 and address code signals P, , P2...
Send out ... and operate the operation switches Sa, Sb...
・Or after calling the load control unit R, , R, 2, etc., operation switch Sa.

The system is managed by receiving control signals sent from sb... or sending control signals to load control sections R11, R, □...
a.

Control signal transmission time period from sb... and load control unit R1
1t R1□...The control signal time period and the control signal to R1□... are placed separately for time division multiplex control, the signal from the operation switch Sa... is received and stored by the signal repeater M, and the signal is stored in the signal repeater M. The correspondence relationship between the operation switch Sa... and each load control section R11'... is arbitrarily set using a program setting device P that can be freely changed like a diode matrix using diode pins Pd, and the signal repeater This invention relates to an indoor load control method characterized in that the blocks and patterns of the operation system can be arbitrarily varied by controlling a desired load control unit R1□... located remotely with a signal from M. The purpose of this invention is to provide a load control system that allows the operation switch systems for lighting loads, air conditioning loads, etc. to be easily changed by changing programs.

In general, controlling load groups controlled by operation switches in any layout, either in blocks or in patterns, can be used to save energy by turning off unnecessary lights, or to change the layout of rental buildings, offices, etc. Various effects can be expected, such as the ability to control lighting.

FIG. 1 shows an example of a block change in lighting control.

In FIG. 1, S, / to S5' are lighting load blocks corresponding to each operation switch, and when the lighting load block configuration as shown in FIG. 1A is changed to the lighting load block configuration as shown in FIG. This is called a block change in lighting control, and FIG. 2 shows an example of a pattern change.
The lighting pattern is shown by the diagonal line surrounded by the chain line 8
A portion 2' indicates a lighting pattern caused by the switch S3, and when the lighting pattern shown in FIG. 2A is changed to, for example, the lighting pattern shown in FIG.

For example, in conventional operation switches for lighting loads, the operation switch and the lighting load operated by it are generally fixed, and when changing the lighting pattern or lighting block, it is common to change the wiring. However, in practice, there was a problem in that wiring changes were costly and such changes were impossible.

In addition, because the operation switch system is fixed, it is often impossible to turn off only a certain part of the light even if there is an unnecessary lighting load, and there are many cases where power is wasted. In this case, it would be possible to provide an operation switch for each lamp in the lighting load, but the wiring would be extremely complicated and the number of operation switches would be extremely large, which would pose a practical problem. In reality, such a method is not adopted.

In addition, it is common to remove unnecessary lighting load lamps, but even if the lamps are removed, current still flows through the primary side of the leakage transformer (ballast), which often results in power loss.

In view of the above points, the present invention has a program setting function that can immediately respond to various cases, allows the optimum control system to be easily obtained on the spot without the need for wiring changes, and has a multiple control function and a program setting function. By having a variable function, it is possible to easily change the pattern or block of the switch system with extremely simple wiring, and it also provides a load control method that makes it easy to add and expand the system. An embodiment of the present invention will now be described in detail with reference to the drawings.

FIG. 3 is a wiring system diagram of an embodiment of the present invention, in which a time-division multiplex control system using a dedicated line 7c, which is extremely easy to wire, is adopted as a control method, and the lighting load is reduced.

This is an example of controlling... In the same figure, Lll
j "12...L4□ is the lighting load, R11...R
47 is a load control unit such as a receiving relay, S a y S
b sSc is an operation switch, Ap is a power line that supplies power from distribution board B to lighting loads 11 to L47, tc is a dedicated line, M is composed of a synchronization signal generation section, signal transmission/reception section, address exchange section, etc. It is a signal repeater.

FIGS. 4 and 5 respectively show the connecting portion between the power line tp, private line tc, and lighting load Lpq, and the connecting portion between the operating switch Sa and the signal private line tc in an arbitrary load control unit Rpq.

The basic load control method that is the premise of the present invention will be briefly explained below based on FIGS. 3 to 5.

It is assumed that address code signals of pulse codes encoded in a time-division manner are sequentially and cyclically transmitted from the signal repeater M.

When the specific address time of the operation switch Sa comes, a signal is sent from the transmitter Sa2 to the dedicated signal line Lc in accordance with whether the switch (group) Sa1 shown in FIG. 5 is turned on or off.

This signal is received by a signal repeater M and its contents are stored in a memory.

There is an exchange circuit in the signal repeater M that can connect the instruction content of the operation switch S a =S c to any load control unit R11 to R4□, and controls the connected lighting load as an operation system of the operation switch Sa. Load control unit e.g. R, pq
When the specific address time period of , the content signal of the operation switch Sa is sent from the signal repeater M, and as shown in FIG.
Received by q1, drives relay R1) Q2 and its contact R
p(la is opened and closed to transfer power from the power line tp to the lighting load L
Supply or stop supply to pq.

Of course, in this case, there may be a plurality of switches in the operation switch Sa, and a plurality of relays in the load control section Rpq, and the load control section Rp can be switched by operating the operation switch Sa.
Not all relays in q are matched to operate.

In FIG. 3, the operation switch Sc is, for example, a photoelectric switch S c 1 installed near the window and a transmitter S c
2, which makes it possible to automatically turn on and off the lighting load near the window in response to external light.

Next, a configuration example for performing the above operation will be described in more detail.

FIG. 6 shows an example of the circuit block configuration of the signal repeater M.

In the circuit shown in FIG. 6, 1 is a clock pulse circuit, 2 is a synchronization signal circuit that generates synchronization signals to each circuit using the clock pulse from the clock pulse circuit 1, and the start synchronization pulse shown in FIG. , Spi+1.・・・
・, address code signal P, , P2..., Pr, control command signal Q1゜Q2. This circuit sequentially and cyclically outputs a synchronizing signal for transmitting or receiving a group of signals necessary for controlling each address, such as Q3.

3 is a counter that counts 14 pulses output from the synchronizing signal circuit 2 in a signal group per channel and notifies the decoding circuit 4 and shift register 5 of the channel address of the signal to be sent or received, and has a binary output. is appearing.

A decoding circuit 4 receives and decodes a binary signal indicating the address from the counter 3.

Reference numeral 5 designates a parallel manual serial output shift register which reads a binary signal indicating the address from the counter 3 from the parallel input terminal, shifts it into series according to the pulse from the synchronizing signal circuit 2, converts it from parallel to serial, and produces an address code signal. be.

6 is the start synchronization pulse issued at the beginning of each signal group...S
P is SP i+ 1... is synchronized signal circuit 2
This is a start synchronization pulse generation circuit that generates a pulse with a longer pulse length than other signals in synchronization with the synchronization signal from the start.

7 is the control command path line tb1, and the input terminals R,...
- When sent out by controlling the analog switches 9, 10, 11 with the output of the control command decoding circuit 4 inputted to Rn, it is read from the parallel input terminal and serially shifted by the synchronization signal from the synchronization signal circuit 2. It is a parallel manual serial output shift register that encodes control commands.

8 is a shift register 5, a start synchronization pulse generation circuit 6
, the signal from the shift register 7, and further controls the output signal by the signal from the synchronizing signal circuit 2.

Reference numeral 19 denotes a coupler, which is a circuit that sends a signal from the transmission control circuit 8 to the dedicated line tc for signal transmission, or transmits a received signal from the dedicated line Lc to the reception control circuit 18.

However, when the reception permission signal is output from the synchronization signal circuit 2, the reception control circuit 18 transmits the signal from the coupler 19 to the pulse width detection circuit 21 and the clock pulse circuit 20.

This clock pulse circuit 20 supplies a clock to a pulse width detection circuit 21 and a shift register 22 to detect a received signal.

The pulse width detection circuit 21 detects the type of signal by detecting the difference in pulse width of the received signal from the coupler 19. In the example of FIG. 7, the address code signal Pl is "1" and the signal P2
(indicates a "0" signal) is a circuit that supplies a clock to the shift register 22, and the shift register 22 is a serial input/parallel output shift register for converting the received signal from serial to parallel. The signal is sent to the signal path line tb2.

The received signal thus sent to the received signal bus slice tb2 is a signal obtained by decoding the output of the counter 3 by the decoding circuit 4 and sent to the gate circuits 12, 13, and 14, and further received by the synchronization signal circuit 2. The gate circuits 12 and 13 output the received signal read signal at the timing after receiving the signal.
14, the logical product of both is taken, and the output is sent to the received signal storage circuits 15, 16...17, so that the signal on the received signal path line tb2 is stored in the received signal storage circuits 15, 16. .17.

These output terminals are outputs S, , S2..., Sm.

Control command input terminal R1 in the block circuit diagram of Fig. 6
..., Rn and received signal storage circuit output terminal SI, ...
, Sm are, for example, diode pins Pd as shown in FIG.
In the program setting device P, which can freely change the settings and is made of a diode matrix using the diode pin Pd, the program is set so that arbitrary correspondence can be performed.

The diode pin Pd has an output terminal S1. . . . has a built-in diode directed from the Sm side to the input terminals R1, . . . , Rn. For example, the output terminal S in FIG.

is at “1” level, the input terminal R connected to it
1 is also at the "1" level, and if it is made to correspond to the on control of the "1" level lighting load, an on command will be issued to the load control unit R11 having that unique address via the input terminal R1.

Also, regarding input terminal R2, output terminals S2 and S
When diode pin Pd is connected to m-2, output terminals S2 and Sm-2 constitute an OR gate with two inputs, and output terminals S2 or Sm
If any of -2 is "work", an ON command is similarly issued via input terminal R2.

Next, output terminal S1゜...Sm and input terminal R1...Rn
In order to change the correspondence, the control section can be easily changed by changing the position of the diode pin Pd.

So, returning to Fig. 3 and describing the operation procedure, when operating the operation switches Sa, Sb, ... Sc, a signal corresponding to the operation switch (for example, 1
"on" and "0" off) are sent to the dedicated line tc, received and stored by the signal repeater M, and set to the address of the corresponding load control unit via the program setting device P as shown in FIG. The load control units R1, . . . , R67 are controlled by inserting an on or off command signal into the time period.

In the above embodiment, the diode pin Pd is used as a program setting device, but a rewritable semiconductor memory I
A similar function can be obtained by setting control correspondence using JRAM or the like.

Next, FIG. 9 shows a block circuit diagram of the operation switches Sa, Sb, . . . corresponding to the circuit of the signal repeater M in FIG. An example diagram is shown in FIG.

In the circuit of FIG. 9, 23 is a coupler, which includes a coupling element between the dedicated line tc and the logic circuit, a signal level shift circuit, a noise removal filter, a signal sending driver, etc.

Reference numeral 24 denotes a clock generation circuit which supplies a clock pulse width detection circuit 25 of a predetermined frequency when an input signal is received, and is composed of a multi-by-break with a control terminal or the like.

The pulse width detection circuit 25 counts the number of pulses from the clock generation circuit 24, detects the pulse width from the count result, and determines the type of signal.

26 is a serial-to-parallel conversion circuit consisting of a serial input/parallel output shift register, which reads an address code and obtains a parallel signal.

Reference numeral 27 denotes a coincidence determination circuit that determines whether the address code output from the serial/parallel conversion circuit 26 matches a set address, and is composed of a switch block and a gate circuit.

Reference numeral 28 denotes a time zone determining circuit which receives the signal from the coincidence determining circuit 27, stores it when a coincident signal is received, and determines the signal sending time.When the signal sending time comes, the time zone determining circuit 28 sends a signal to the transmission control circuit 29. The feed clock generation circuit 24 is operated to transmit the signal from the pulse width detection circuit 25 to the switch operation section 3.
It combines it with the signal from 0 to create the 'l' or 0' signal, and sends the operation signal to the dedicated line tc via the coupler 23.

FIG. 10 shows an example of a circuit block of the load control units R11, . . . , R47, .

Therefore, when the addresses match and a control command comes in, the parallel output of the series/parallel circuit 34 and the time zone discrimination circuit 36 (in this case, unlike the time zone discrimination circuit 28 of the operation switch Sa...) discriminate the receiving time zone. A control command from the receiver control circuit 37 is inputted to the relay drive unit 38 for load control.
Transmit control commands to [sometimes multiple devices].

To explain the above-mentioned operation using the time chart in Fig. 7, A
s(i-1), As(i), As(i+1)
. . . is a time period in which the unique addresses of the operation switches Sa, Sb, Sc, .
．． ...is composed of Pr, and Cs (i −1)
, C5(i), . . . ° are time periods in which signals are sent out depending on the on/off state of the operation switch, and are composed of, for example, three operation switch signals Q1tQ2 and Qa.

Also...Ar(j), Ar(j11),... are the unique address time zones of the load control units R10,...R4□..., and...Cr(jLCr(j+1)・... transmits the control signal sent from the signal repeater M to the load control unit R11tR4
7... This is the time period for receiving.

In the embodiment shown in FIG. 3, the signal repeater M and the operating switches Sa, Sb, . . . are separate devices, but the operating switches may be built into the signal repeater M.

That is, in this case, the receiving circuit section is eliminated in the block circuit shown in FIG. 6, and the memory circuit output (S
It is sufficient to install an operation switch at the position (l, ..., Sm).

As described above, the present invention receives and stores the signal of the operation switch with a signal repeater, and uses a program setting device that is built in the signal repeater and whose settings can be changed freely like a diode matrix using diode pins to control the operation switch. The blocks and patterns of the operation system can be changed arbitrarily by setting the corresponding relationship between the load control unit and each load control unit, and controlling the desired load control unit located remotely using the signal from the signal repeater. Therefore, in the operation control system for lighting loads, air conditioning loads, etc., the operation switch system can be easily changed by changing the program, and the loads can be switched in a predetermined set block or pattern. , energy saving effects can be expected by releasing unnecessary loads, and when installing a load control system, the correspondence between the operation switch and each load control section can be determined at the construction stage, that is, at the user's side, and it can be adjusted to suit the on-site situation. In addition, after installing the indoor loads, you only need to set the control pattern for each indoor load, which has the effect of making it easy to carry out construction that matches the site conditions. Even when changing the indoor layout, the program setting device can be used to change the correspondence between the operation switches and each load control section, so that the control pattern of each indoor load can be easily changed without changing the wiring. Furthermore, the signal repeater sends out a start synchronization pulse and an address code signal to call the operation switch or load control section, and then receives the control signal sent from the operation switch or sends the control signal to the load control section. The time period for sending control signals from the operation switch and the time period for sending control signals to the load control section are separated and time-division multiplexed control is performed, allowing control of the load control section and monitoring of the operation switch. are performed in different time periods, so even if the same signal line is used to transmit the control signal from the operation switch and the control signal to the load control unit, it is necessary to separate both signals. In addition, the signal repeater only needs to send a start synchronization pulse at the beginning of a signal group, and there is no need to send a clock signal for control signal transmission and reception. When an indoor load control system is formed using the control method of the present invention without requiring means for transmitting and receiving signals separately, the circuit configuration is simplified, and furthermore, the system can be expanded and expanded easily. In addition, when performing time-division multiplex control using power line transport or wireless transport, even when performing time-division multiplex control using dedicated lines, the control system can be configured with extremely simple wiring, and the installation of the control system is easy. This has the effect of reducing wiring construction costs.

[Brief explanation of the drawing]

FIGS. 1a and 1b are schematic diagrams showing the state before and after the block change of the lighting load block, respectively, and FIG. b is a schematic diagram showing the states before and after the pattern change of the lighting load pattern, FIG. 3 is a basic configuration block diagram of an embodiment of the present invention, FIG. 4 is a block diagram of the same load control section, and FIG. 6 is a block diagram of the same operation switch as above, FIG. 6 is a detailed circuit block diagram of the signal repeater as above, FIG. 7 is a time chart as above, and FIG. 9 is a detailed circuit block diagram of the same operation switch as above, and FIG. 10 is a detailed circuit block diagram of the load control section same as above, Sa, Sb... are operation switches, "11 t" 12
... is the lighting load, :Rit j R12... is the load control section, M is the signal repeater, P is the program setting device, SP
i, SPi+1... are start synchronization pulses, Pl,
P2 is an address code signal.

Claims (1)

[Claims] 1. In a load control system consisting of an operation switch, a load control unit installed corresponding to each indoor load such as a lighting load or an air conditioning load, and a signal repeater, the start synchronization pulse and address code signal are transmitted from the signal repeater. After sending the signal and calling the operation switch or load control section, the system is managed by receiving the control signal sent from the operation switch or sending the control signal to the load control section, and then receiving the control signal from the operation switch. The transmission time period and the control signal time period to the load control section are separated and time-division multiplexed, and the operation switch signal is received and stored by a signal repeater, and a diode pin built into the signal repeater is used. The correspondence relationship between the above operation switches and each load control section can be set arbitrarily using a program setting device that can be freely changed like a diode matrix.
An indoor load control method characterized in that the block pattern of the operation system can be arbitrarily varied by controlling a desired load control unit located remotely using a signal from a signal repeater.