JP2000013415A - Remote supervisory and control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously operate plural loads, which become the object of group control, without time difference. SOLUTION: Control terminal equipment 32 is provided with an individual address setting part 12 for setting respectively peculiar individual addresses and a broadcasting address setting part 13 for setting a broadcasting address common for plural pieces of dimming terminal equipment 32. When the broadcasting address is commonly set and a transmission signal containing the broadcasting address is sent from a transmission controller 30 to a signal line Ls, concerning the dimming terminal equipment 32 to become the object of group control, the respective pieces of dimming terminal equipment 32 almost simultaneously receive that transmission signal and start the control of illumination loads.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transmitting a transmission signal between terminals connected to a signal line by a time division multiplex transmission system and using the transmission signal to operate a switch provided in the terminal. The present invention also relates to a remote monitoring control system for controlling a load provided in another terminal device.

[0002]

2. Description of the Related Art A remote monitoring control system having a configuration shown in FIG. 13 is conventionally known. In this remote monitoring and control system, a plurality of operation terminals 31 and control terminals 3 are connected to a two-wire signal line Ls connected to the transmission control device 30.
2 is branched connection (multi-drop connection). In the illustrated example, one operation terminal device 31 and one control terminal device 32 are shown, but a plurality of operation terminals are actually provided. In the illustrated example, a lighting fixture 33 including a lighting load is connected to the control terminal 32, and the light output of the lighting load is instructed from the control terminal 32. Here, the dimmer that controls the power supplied to the lighting load may be built in the control terminal 32 or the lighting fixture 33. Normally, a dimmer is built in the control terminal 32 when the lighting load is an incandescent lamp, and a dimmer is built in the lighting fixture 33 when the lighting load is a discharge lamp such as a fluorescent lamp.

When the control terminal 32 receives an instruction to change the light output of the illumination load to increase or decrease and an instruction to start the change, the control terminal 32 changes the light output to the indicated change direction. When the control terminal 32 receives the change end instruction, the light output at that time is maintained. In this way, only two points, the change start time and the change end time, of the light output are specified, and during this time, the control terminal 32 automatically changes the light output. It is called a dimming type terminal.

[0004] The operation terminal device 31 has three switches Sa to Sc that are pushed. The switch Sa instructs the lighting load to be turned on and off, the switch Sb instructs an increase in the light output, a change start and a change end, and the switch Sc instructs a decrease in the light output and a change start and a change end. here,
The switches Sb and Sc instruct a change start at the start of the push operation and a change end at the end of the push operation.

By the way, each address is set to each operation terminal 31 and each control terminal 32.
The transmission control device 30 individually recognizes the operation terminal device 31 and the control terminal device 32 using those addresses. Here, the individual address is set using a DIP switch or an optical wireless signal from a setting device provided separately from the remote monitoring control system.

[0006] The transmission control device 30 controls the signal line Ls
The transmission signal Vs of the format shown in FIG. That is, a synchronization signal SY indicating the start of signal transmission, mode data MD indicating the mode of the transmission signal Vs, address data AD for individually calling the operation terminal device 31 and the control terminal device 32, control data CD for controlling the load, and transmission. Checksum data CS for detecting an error, return signal (monitoring data) from operation terminal device 31 or control terminal device 32
Is a bipolar (± 24 V) time-division multiplexed signal consisting of a signal return period WT, which is a time slot for receiving data, and data is transmitted by pulse width modulation (FIG. 14B). In each operation terminal device 31 and each control terminal device 32, the transmission signal Vs received via the signal line Ls
When the address data AD transmitted by the control signal coincides with a preset address, the control data CD is fetched from the transmission signal Vs, and the monitoring data is transferred to the current mode signal (signal line L) during the signal return period WT of the transmission signal Vs.
s as a signal sent by shorting through a suitable low impedance).

[0007] From the transmission control device 30 to the desired operation terminal 3
1 or the control terminal 32, a transmission signal Vs with the mode data MD as the control mode and the address of the operation terminal 31 or the control terminal 32 as the address data AD is transmitted. Vs to the signal line Ls
, The operation terminal device 31 or the control terminal device 32 that matches the address data AD receives the control data CD and returns the monitoring data during the signal return period WT. The transmission control device 30 confirms that the control data CD has been transmitted to the desired operation terminal 31 or control terminal 32 based on the relationship between the transmitted control data CD and the monitoring data received during the signal return period WT. The control terminal 32 outputs a load control signal for controlling a load according to the received control data CD, and the operation terminal 31 outputs a monitoring signal for performing a load operation confirmation display according to the received control data CD.

On the other hand, the transmission control device 30 normally transmits the transmission signal Vs in which the mode data MD is in the dummy mode at regular time intervals (referred to as polling at all times). When transmitting any information, an interrupt signal as shown in FIG. 14C is generated in synchronization with the synchronization signal SY of the transmission signal Vs in the dummy mode. At this time, the operation terminal 31 sets an interrupt flag and prepares for the subsequent information exchange with the transmission control device 30. Upon receiving the interrupt signal, the transmission control device 30 sets the mode data MD to the interrupt polling mode and sequentially increases the upper half of the address data AD (the upper 4 bits if the address data AD is 8 bits). In the operation terminal device 31 that has transmitted the transmission signal and generated the interrupt signal, the upper 4 bits of the address data AD of the transmission signal in the interrupt polling mode match the upper 4 bits of the address set in the operation terminal device 31. Then, the lower 4 bits of the address are returned to the transmission control device 30 during the signal return period WT. Thus, the transmission control device 3
In the case of “0”, since 16 operation terminals 31 that have generated the interrupt signal are collectively searched, the operation terminal 31 can be found in a relatively short time.

When the transmission control device 30 obtains the address of the operation terminal 31 that has generated the interrupt signal, the mode data M
D is set to the monitoring mode, and a transmission signal having the acquired address data AD is transmitted to the signal line Ls. In response to this transmission signal, the operation terminal device 31 returns information to be transmitted to the signal return period WT. It is. Finally, the transmission control device 30 sends a signal for instructing an interrupt reset to the operation terminal device 31 that has generated the interrupt signal, and releases the interrupt flag of the operation terminal device 31. As described above, information transmission from the operation terminal device 31 to the transmission control device 30 is performed by four signal transmissions from the transmission control device 30 to the operation terminal device 31 (dummy mode, interrupt polling mode, monitoring mode,
(Interrupt reset). When the transmission control device 30 wants to know the desired operating state of the control terminal 32, it is only necessary to transmit a transmission signal using the mode data MD as monitoring data.

When the operation data is generated by operating the switches Sa to Sc, the operation data is returned from the operation terminal 31 to the transmission control device 30 and the transmission signal including the control data CD generated based on the operation data is transmitted. Is transmitted to the control terminal 32 by the transmission control device 30, the control terminal 32 controls the lighting load. Here, the control terminal 32 returns the monitoring data to the transmission control device 30, and transmits the returned monitoring data to the operation terminal 31. The operation terminal 31 outputs a monitoring signal according to the transmission signal. The monitoring signal is usually used for turning on / off the confirmation light. The operation terminal device 31 shown in FIG. 13 is used for dimming for instructing the light output of the illumination load, and transmits operation information to the transmission control device 30 at the start and end of the pressing operation of the switches Sb and Sc. When the switch Sb is pressed, for example, as shown in FIG. 15, an operation signal OP1 instructing to start increasing the light output of the lighting load is transmitted to the transmission control device 30, and the operation signal OP1 is transmitted. Control signal CN corresponding to
1 is transmitted to the control terminal 32. Also, the switch Sb
Is completed, the operation signal OP2 instructing the stop of the change of the optical output is transmitted to the transmission control device 30, and the control signal CN2 corresponding to the operation signal OP2 is transmitted to the control terminal 32. Here, the operation signals OP1 and OP2 and the control signals CN1 and CN2 are transmitted by transmission signals.

In this type of remote monitoring and control system, the correspondence between the address of the operation terminal 31 and the address of the control terminal 32 is managed by the transmission control device 30. In addition to associating the address with the address of one control terminal 32, it is also possible to associate the address of one operation terminal 31 with the address of a plurality of control terminals 32. Is set, the lighting loads of a plurality of circuits can be collectively controlled by the switches Sa to Sc of one circuit. This type of control is called collective control. In particular, collective control for controlling a plurality of lighting loads to the same control state is called group control, and a control state (light control level) in which a plurality of lighting loads are individually set in advance. Is called pattern control.

[0012]

On the other hand, the light output of each lighting load can be adjusted by operating the switches Sa to Sc corresponding to each lighting load. On the other hand, there is a demand to slightly increase or decrease the overall light output (illuminance) of the lighting space without changing the ratio of the light output of each lighting load. To satisfy this kind of demand, group control may be performed for a plurality of lighting loads.

Since individual addresses are set in the operation terminal 31 and the control terminal 32, when performing group control, a plurality of control terminals 32 are assigned to the address of one operation terminal 31. May be associated. That is, as shown in FIG.
An operation terminal device 31a corresponding to the operation terminal device one-to-one,
Operation terminal 3 associated with a plurality of control terminals 32
1b are provided, and when the switches Sa to Sc are operated in the operation terminal 31b, the operation signals OP1, OP2
Is transmitted to the transmission control device 30, the transmission control device 30
Here, a plurality of control signals CN11-CN13, CN21-CN are respectively associated with the operation signals OP1 and OP2.
23 are sequentially generated and sequentially transmitted to each control terminal 32 to be subjected to group control. According to this procedure, a plurality of lighting loads connected to the control terminal device 32 to be subjected to group control can be controlled collectively by operating one of the switches Sa to Sc.

However, since the operation information of the switches Sa to Sc is sequentially transmitted to each of the control terminals 32 to be subjected to the group control, the timing of receiving the operation information of the switches Sa to Sc for each of the control terminals 32 is determined. Will be different. In particular, when the number of control terminals 32 to be subjected to group control is large, the timing of receiving the operation information of the switches Sa to Sc is greatly shifted. For example, if the switch Sb is pressed to increase the light output of the lighting load, some control terminals 3
In the lighting equipment connected to 2, the increase in light output starts from the start of the pressing operation of the switch Sb, but another control terminal 3
In the lighting device connected to 2, the increase in the light output is started with a delay from the start of the pressing operation of the switch Sb, and a sense of incongruity due to a timing shift occurs.

On the other hand, as shown in FIG. 17, a plurality of lighting fixtures 33 are connected in parallel to one control terminal 32 to provide a plurality of lighting loads in one circuit. It is conceivable that a plurality of lighting loads are controlled collectively by the switches Sa to Sc of the circuit. If this configuration is adopted, a plurality of lighting loads can be controlled collectively by one switch Sa to Sc. However, if this configuration is adopted, the brightness of each lighting load can be adjusted. Disappears.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a remote monitoring control system capable of simultaneously operating a plurality of loads to be subjected to group control without time lag. It is in.

[0017]

According to a first aspect of the present invention, a plurality of terminals each having an address are branched and connected to a signal line, and the transmission control device connected to the signal line is connected to each of the terminals. Transmission and reception of transmission signals by the time-division multiplexing transmission method at the same time, and by using the correspondence relation of the address set in the transmission control device, the transmission signal including data corresponding to the operation of the switch provided in the terminal device in the correspondence relation. What is claimed is: 1. A remote monitoring and control system for controlling a load connected to another terminal device by transmitting the signal to another prescribed terminal device, wherein the correspondence relationship is an individual control relationship for associating a load of one circuit with one switch. And a collective control relationship in which a load of a plurality of circuits is associated with one switch. Each of the terminals has an individual address which is a unique address for each terminal, and a plurality of terminals. Has a broadcast address that is an address that is set in common, the terminal processing unit provided in the terminal connected to the load, the address data included in the transmission signal matches the individual address, or the When the address data included in the transmission signal matches the broadcast address, the load is controlled, and each terminal has a broadcast address separately from the individual address, and the broadcast address is Since the terminals are set in common by a plurality of terminals, the terminals to which the same broadcast address is set receive the same transmission signal at substantially the same time, and the load can be controlled at substantially the same timing. Because
The grouped loads can be operated without a time difference. In addition, since the load can be individually controlled by using the individual address, when it is desired to control the individual loads and to group the loads, the loads are controlled at the same time so that the user does not feel uncomfortable.

According to a second aspect of the present invention, in the first aspect of the present invention, the terminal has an address setting memory in which each bit position is associated with one address. Since the address flag is set and the address corresponding to the bit position is used as the address of the terminal, the memory capacity can be reduced when setting a plurality of addresses, and the cost can be reduced. Can be shortened.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the load is a lighting load, and the transmission control device receives data corresponding to an operation of the switch related to the collective control. After sequentially transmitting a transmission signal including a target illuminance level and an individual address of each of the lighting loads associated in the collective control relationship, transmission including control data and a broadcast address for instructing start of control of the lighting load. Since signals are transmitted, the terminals set with the same broadcast address will receive the same transmission signals at almost the same time, and will start controlling the lighting load at almost the same timing, causing a sense of incongruity. There is no.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the terminal processing unit provided in the terminal provided with the switch, when the address data included in the transmission signal matches the broadcast address, Since transmission of a transmission signal including data corresponding to the operation of the switch is inhibited, load control by operating a desired switch can be inhibited.

According to a fifth aspect of the present invention, in the first to third aspects of the present invention, since the broadcast address is stored in the PROM, the broadcast address can be appropriately set by an installer or the like. .

According to a sixth aspect of the present invention, in the first to third aspects of the present invention, since the broadcast address is stored in a nonvolatile memory, the broadcast address is prevented from being lost due to a power failure or the like. be able to.

[0023]

(Embodiment 1) FIG. 1 shows an embodiment of the present invention. FIG. 1 shows a transmission control device 30 and a control terminal device 32.

The transmission control device 30 includes a transmission processing unit 20 composed of a microprocessor. The transmission processing unit 20 is connected to a signal line Ls via a transmission driver circuit 21. The operation of the transmission processing unit 20 is defined by a program stored in a program memory 22 composed of a ROM.
The correspondence between the terminals is stored in a rewritable data memory 23 in a table format. It is desirable to use a nonvolatile memory such as an EEPROM as the data memory 23. Further, a work memory 24 composed of a RAM is used for storing data and the like exchanged with the terminal during operation of the transmission control device 30.

The control terminal 32 is used for dimming, and is connected to a lighting fixture 33 (see FIG. 2).
It is possible to control the light output of the illumination load provided in the above. Therefore, hereinafter, the control terminal 32 shown in the present embodiment is referred to as a dimming terminal. The dimming terminal 32
Incorporates a dimmer using a triac when the lighting load is an incandescent lamp, and outputs the dimming data when the lighting load is a fluorescent lamp, so that the dimmer provided in the lighting fixture 33 can output the dimming data. Is controlled by That is, the dimming control unit 14 illustrated in FIG. 1 includes a dimmer for an incandescent lamp, and has a function of generating dimming data for a fluorescent lamp.

As described above, the dimming terminal 32 is connected to the transmission control device 30 via the two-wire signal line Ls, and transmits a transmission signal to and from the transmission control device 30. Is transmitted by the time division multiplex transmission method. The dimming terminal 32 includes a terminal processing unit 10 composed of a microcomputer. The terminal processing unit 10 is connected to a signal line Ls via a transmission / reception circuit 11. The transmission / reception circuit 11 depolarizes (ie, full-wave rectifies) the bipolar transmission signal transmitted through the signal line Ls and receives the signal, and supplies the received signal to the terminal processing unit 10. Further, a power supply circuit for obtaining an internal power supply of the dimming terminal 32 from a transmission signal transmitted through the signal line Ls is also provided. On the other hand, the signal returned from the terminal processing unit 10 to the transmission control device 30 is converted into a current mode signal in the transmission / reception circuit 11 and transmitted to the signal line Ls.

The dimming terminal 32 includes an individual address setting unit 12 and a broadcast address setting unit 13. The broadcast address setting unit 13 includes a nonvolatile memory such as an EEPROM or a PROM, and the individual address setting unit 12 includes a dip switch or a nonvolatile memory. The individual address set in the individual address setting unit 12 is unique to each dimming terminal 32, and one signal line L
In the dimming terminal 32 connected to s, the same individual address is set so as not to be duplicated. On the other hand, as the broadcast address set in the broadcast address setting unit 13, the same broadcast address is redundantly set in a plurality of dimming terminals 32 connected to one signal line Ls. In addition, only one individual address is set in the individual address setting unit 12, but a plurality of broadcast addresses can be set in the broadcast address setting unit 13.

The terminal processing unit 10 selects whether to use an individual address or a broadcast address as the address of the dimming terminal 32 based on the mode data included in the transmission signal transmitted through the signal line Ls. . That is, if the mode data is the individual mode, when the address data included in the transmission signal matches the individual address set in the individual address setting unit 12, the lighting load is controlled through the dimming control unit 14, If the mode data is the group control mode, the lighting load is controlled through the dimming control unit 14 when the address data included in the transmission signal matches the broadcast address.

As described above, the dimming terminal 32 has two types of addresses, an individual address and a broadcast address. Therefore, in the case of pattern control (group control), first, the dimming terminal to be subjected to pattern control is controlled. 32, the target illuminance level is sequentially instructed, and thereafter, the start of dimming is instructed using a broadcast address, that is, if a broadcast notification is performed to a plurality of dimming terminals 32 having the same broadcast address, A plurality of dimming terminals 32 having the same broadcast address receive the dimming start instruction almost at the same time, and the lighting load can be controlled without a time difference. That is, in the present embodiment, one transmission signal can be received by a plurality of dimming terminals 32 by using a broadcast address.

Now, as shown in FIG.
A plurality of (three in the figure) dimming terminals 32 are branched and connected to 0 via a signal line Ls, and one circuit lighting load (as described above, lighting control) is controlled by the dimming terminal 32. Utensil 3
It is assumed that an operation terminal device 31a associated with lighting loads of a plurality of circuits and an operation terminal device 31b associated with lighting loads of a plurality of circuits are connected to the signal line Ls. Hereinafter, the operation terminal device 31a associated with the lighting load of one circuit is referred to as an individual dimming switch, and the operation terminal device 31b associated with the lighting load of a plurality of circuits is referred to as a pattern dimming switch.

When the switches Sa to Sc provided on the individual dimming switches 31a are operated, the transmission control device 30 operates the switches Sa to Sc on one dimming terminal 32 defined by a preset correspondence. Transmit information. The switch Sa instructs ON / OFF of the lighting load. When the switches Sb and Sc are operated while the lighting load is on, the light output of the lighting load is adjusted. For example, when the switch Sc is pressed, the start of the change in the light output in the decreasing direction is instructed to the dimming terminal 32 at the time of the pressing operation, and the end of the change is completed at the time of releasing the pressing operation. 32.

That is, the switches Sb and Sc are used to control the dimming terminal 32 by using the transmission signal at two points, ie, the start and end of the pressing operation.
Give instructions. On the other hand, the dimming terminal device 32 that has received the transmission signal associated with the pressing operation of the switches Sb and Sc changes the light output of the illumination load by a predetermined amount over time from the start of the change to the end of the change. The change in the light output of the lighting load is actually performed stepwise, but the change amount of the light output in one step and the rate of change per time are set so that the light output looks almost continuous. .

Switch S of pattern dimming switch 31b
When d is operated, a transmission signal is transmitted to each of the dimming terminals 32 in the group according to the procedure shown in FIG. Here, in the configuration of FIG. 3, the pattern dimming switch 31b is
It is associated with the same broadcast address set in the dimming terminal (1) 32, the dimming terminal (2) 32, and the dimming terminal (3) 32.

Now, when the switch Sd of the pattern dimming switch 31b is pressed, an operation signal OP1 for instructing dimming control of the illumination load is transmitted to the transmission control device 30, and the transmission control device 30 registers an individual signal registered in advance. Control signals CN11, CN12, and CN13 using the target illuminance level (light control level) of the control signal as control data by using individual addresses, the light control terminals (1) 32, the light control terminals (2) 32, and the light control terminals (3) Transmit the data sequentially to 32. That is, the control signal C
N11 includes the individual address of the dimming terminal (1) 32 as address data, and includes the target illuminance level of the lighting load connected to the dimming terminal (1) 32 as control data. On the other hand, each dimming terminal 32 stores the target illuminance level. The transmission control device 30 controls the control signals CN11 and CN1.
2 and CN13 are sequentially transmitted to the signal line Ls, and then the transmission signal (control signal CN1) of the broadcast address is transmitted in the group control mode.
4) is transmitted to the signal line Ls, and is controlled by the dimming terminal (1) 32, the dimming terminal (2) 32, and the dimming terminal (3) 32 in which the broadcast address is set. The signal CN14 will be received at the same time. as a result,
The dimming terminal (1) 32, the dimming terminal (2) 32, and the dimming terminal (3) 32 start dimming the illumination load almost simultaneously. With this procedure, no matter how many dimming terminals 32 are subject to group control,
The operation information of the pattern dimming switch 31b is transmitted almost simultaneously with no time difference to each dimming terminal 32, and there is almost no time difference in controlling the individual lighting loads. The operation signal OP1 and the control signals CN11 to CN11 described above are used.
CN14 is a transmission signal.

If a single light control terminal 32 has a plurality of broadcast addresses, one light control terminal 32 can belong to a different group. For example, in a meeting room or presentation room,
The whole may be used as one room, or may be divided into a plurality of rooms using a partition, and in such a case, the range of the lighting load to be controlled by the group is changed. However, the same lighting load must belong to different groups. If one dimming terminal 32 can have only one broadcast address, the same lighting load cannot belong to different groups,
This is made possible by the configuration of the present embodiment.
That is, there is no problem even if the information is repeatedly registered in a plurality of groups, so that the group control can be dynamically and easily set.

In the present embodiment, a single dimming terminal 32 has a plurality of broadcast addresses. However, the terminal of the conventional remote monitoring and control system stores the address as several words of data. Therefore, when trying to make a terminal device that sets multiple addresses, memory capacity is required as a multiple of the number of addresses, which leads to problems such as larger products and increased costs, and the time required to set addresses. There was a problem that becomes longer. For example,
It is assumed that the setting of one address requires an 8-bit data amount, and when the physical address is 00H to FFH, 256
In order to provide the number of addresses, a data amount of 2048 bits is required. In addition, when a plurality of (N) addresses are assigned to each of the circuits (1) to (N), a transmission signal is received and included in the transmission signal as shown in FIG. It is determined whether or not the address data matches the address of the circuit (1). If the address data matches, the process is performed when the address matches. If not, the address matches the address of the circuit (2). Is determined, and the process is performed when the addresses match only when the addresses match. When the addresses do not match, it is determined whether the addresses match the address of the circuit (N). Is performed, and if it does not match, control is performed to receive the next transmission signal.
Since a maximum of N match determinations are performed, and the time for address match determination is long, it is necessary to reduce the transmission speed and the number of circuits.

To solve this kind of problem, the dimming terminal 32 is provided with an address setting memory M in which each bit position is associated with one address as shown in FIG. The address flag may be set at any one of the bit positions, and the address corresponding to the bit position may be used as the address of the dimming terminal 32. FIG. 4 shows a 32 × 8 bit map memory in which each bit in the first row of FIG.
FH, each bit in the second row is sequentially associated with 20H-3FH from the left, each bit in the third row is sequentially associated with 40H-5FH from the left, and each bit in the fourth row is left. From 60H to 7FH in order from
Each bit in the fifth row is associated with 80H to 9FH in order from the left, and each bit in the sixth row is A0H to B in order from the left.
Each bit in the seventh row is associated with C0H to DFH in order from the left, and each bit in the eighth row is associated with E0H to FFH in order from the left. In the example shown in FIG. 4, the presence or absence of the setting of the address flag is determined by each bit being 0 or 1, and the address is set to 03H and 04H (03H and 0H).
The bit data at the bit position corresponding to each of the 4Hs is set to 1). That is, 256 addresses can be set with a data amount of 256 bits, and 204 addresses can be set.
The required data amount is 8 compared to the conventional method that requires 8 bits.
Since it can be reduced to one-half, the capacity of the memory can be reduced and the cost can be reduced. Further, since the data amount of the address setting can be reduced, the time for the address setting can be shortened.

Further, since the address is set in the bitmap format as described above, in order to determine the coincidence of the address, the bitmap address (corresponding to the address data corresponding to the address data included in the received transmission signal) is determined. Is provided in the terminal processing unit 10, and when the data at the bit position of the bit map corresponding to the address data is 1 (when the address flag is set), the address data matches. When the bit is 0, it is possible to control to receive the next transmission signal, so that only one address match determination is required regardless of the number of set addresses. Thus, even a terminal having a plurality of addresses can use a low-cost and low-speed terminal processing unit 10, and the number of circuits depends on the transmission speed. Restricted also eliminated, it becomes possible to speed up the transmission speed at a low cost.

(Embodiment 2) Since the basic configuration of this embodiment is substantially the same as that of Embodiment 1, only the differences will be described. In this embodiment, the group control switch 31b is connected to the control terminals (1) 32 to (4) 32 shown in FIG.
The same broadcast address is set in the control terminal (1) 32 to the control terminal (4) 32, and when the switch Sd of the group control switch 31b is pressed, as shown in FIG. The operation signal OP1 is transmitted from the control switch 31b to the transmission control device 30, and the transmission control device 30 first controls the control signal CN including the broadcast address common to the control terminals (1) 32 to (4) 32.
11 (transmission signal) is transmitted to the signal line Ls. On the other hand, the control terminal device 32 that has received the control signal CN11 transmits the control signal C to the signal line Ls from the transmission control device 30 next.
The terminal processing unit 10 has a function of receiving N12 regardless of the address match. Thus, in this embodiment,
The control terminal to which the same broadcast address is set is transmitted to the transmission control device 30 next to the control signal CN11 including the broadcast address.
, The control signals CN12 transmitted to the signal line Ls from the control terminal (1) 32 to the control terminal (4) 32 can be controlled at substantially the same timing. That is, simultaneous control of the control terminals (1) 32 to (4) 32 can be performed with a small number of transmissions.

(Embodiment 3) The basic configuration of this embodiment is substantially the same as that of Embodiment 1, and only the differences will be described. In the present embodiment, the group control switch 31c is connected to the operation terminals (1) 31a to (4) 3 shown in FIG.
1a, the same broadcast address is set in the operation terminal devices (1) 31a to (4) 31a, and when the switch Sd of the group control switch 31b is pressed, as shown in FIG. Group control switch 3
1b is transmitted from the transmission control device 30 to the transmission control device 30. The transmission control device 30 transmits a switch including a broadcast address common to the operation terminal devices (1) 31a to (4) 31a. A control signal CN1 (transmission signal) including control data for prohibiting an interruption due to the operation of Se is transmitted to the signal line Ls. Then, the operation terminals (1) 31a to (4) 31a receive the control signal CN1 almost at the same time, and the lighting load is not controlled even if the switch Se is pressed thereafter.

Thereafter, the group control switch 3
When the switch Sd of 1b is pressed, an operation signal OP2 instructing the switch operation to be valid is transmitted from the group control switch 31b to the transmission control device 30, and the transmission control device 3
0 is the operation terminal (1) 31a to the operation terminal (4) 31
a control signal CN including control data including a broadcast address common to a and enabling an interrupt in accordance with the operation of the switch Se.
2 (transmission signal) is transmitted to the signal line Ls. Then, the operation terminal (1) 31a to the operation terminal (4) 31a receive the control signal CN2 almost simultaneously, and thereafter, the switch Se.
, The lighting load can be controlled. That is, the group control switch 31b of this embodiment is provided to lock (prohibit) the operation of the other operation terminal devices (1) 31a to (4) 31a. It is possible to prohibit the control of the lighting load by the operation of the other operation terminal devices (1) 31a to (4) 31a only by the push operation of.

(Embodiment 4) Since the basic configuration of this embodiment is substantially the same as that of Embodiment 1, only the differences will be described. In the present embodiment, a ventilation fan L is used as a load connected to the control terminal 32.

In this embodiment, a common broadcast address is set for the operation terminal (1) 31a to the operation terminal (4) 31a shown in FIG. The control signal CN including the broadcast address is used as a synchronizing signal for the operation display lamps of the operation terminals (1) 31a to (4) 31a. Thus, in the present embodiment, since the operation display lamp can flicker in the same cycle, the confirmation (recognition) of the operation (operation) state of the load L can be enhanced.

[0044]

According to the first aspect of the present invention, a plurality of terminals each having an address are branched and connected to a signal line, and time division multiplexing is performed between the transmission control device connected to the signal line and each of the terminals. By transmitting and receiving the transmission signal by the transmission method and using the correspondence of the address set in the transmission control device, the transmission signal including the data corresponding to the operation of the switch provided in the terminal device is defined by the correspondence. A remote monitoring and control system for controlling a load connected to the other terminal by transmitting the load to another terminal, wherein the correspondence includes an individual control relationship for associating a load of one circuit with one switch, and one There is a collective control relationship that associates loads of a plurality of circuits with a switch, and each of the terminal units has an individual address that is a unique address for each terminal unit and a common address set for a plurality of terminal units. And a terminal processing unit provided in a terminal connected to a load, wherein the address data included in the transmission signal matches the individual address or is included in the transmission signal. Since the load is controlled when the address data matches the broadcast address, each terminal has a broadcast address separately from the individual address, and the broadcast address is set in common by a plurality of terminals. Terminals to which the same broadcast address is set receive the same transmission signal at substantially the same time, and can control the load at substantially the same timing. There is an effect that operation can be performed without a time difference. In addition, since the load can be individually controlled by using the individual address, when it is desired to control the individual loads and to group the loads, the loads are controlled at the same time so that the user does not feel uncomfortable.

According to a second aspect of the present invention, in the first aspect of the present invention, the terminal has an address setting memory in which each bit position is associated with one address. Since the address flag is set and the address corresponding to the bit position is used as the address of the terminal, the memory capacity can be reduced when setting a plurality of addresses, and the cost can be reduced. This has the effect of shortening the time required for the setting of.

According to a third aspect of the present invention, in the first or second aspect of the invention, the load is a lighting load, and the transmission control device receives data corresponding to an operation of a switch related to the collective control. After sequentially transmitting a transmission signal including a target illuminance level and an individual address of each of the lighting loads associated in the collective control relationship, transmission including control data and a broadcast address for instructing start of control of the lighting load. Since signals are transmitted, the terminals set with the same broadcast address will receive the same transmission signals at almost the same time, and will start controlling the lighting load at almost the same timing, causing a sense of incongruity. There is an effect that there is no.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the terminal processing section provided in the terminal provided with the switch, when the address data included in the transmission signal matches the broadcast address, Since the transmission of the transmission signal including the data according to the operation of the switch is inhibited, the load control by the operation of the desired switch can be inhibited.

According to a fifth aspect of the present invention, in the first to third aspects of the present invention, since the broadcast address is stored in a PROM, the broadcast address can be appropriately set by a constructor or the like. This has the effect.

According to a sixth aspect of the present invention, in the first to third aspects of the present invention, since the broadcast address is stored in a nonvolatile memory, the broadcast address is prevented from being lost due to a power failure or the like. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a main block diagram showing a first embodiment.

FIG. 2 is a schematic configuration diagram showing a usage example of the above.

FIG. 3 is an operation explanatory diagram showing a control procedure in the above.

FIG. 4 is an explanatory diagram of an address in a bitmap format in the embodiment.

FIG. 5 is an operation explanatory diagram in the case where a bitmap format address in the above is used.

FIG. 6 is an operation explanatory diagram of a reference example having a plurality of addresses.

FIG. 7 is a schematic configuration diagram showing a second embodiment.

FIG. 8 is an operation explanatory diagram showing a control procedure in the above.

FIG. 9 is a schematic configuration diagram showing a third embodiment.

FIG. 10 is an operation explanatory diagram showing a control procedure in the above.

FIG. 11 is a schematic configuration diagram showing a fourth embodiment.

FIG. 12 is an operation explanatory diagram showing a control procedure in the above.

FIG. 13 is a schematic configuration diagram of a conventional remote monitoring control system.

FIG. 14 is an operation explanatory view of the above.

FIG. 15 is an operation explanatory diagram showing a control procedure in the above.

FIG. 16 is an operation explanatory diagram showing a procedure of group control in the above.

FIG. 17 is a schematic configuration diagram showing another configuration example of the above.

[Explanation of symbols]

 REFERENCE SIGNS LIST 30 transmission control device 31 operation terminal device 31 a individual dimming switch 31 b pattern dimming switch 32 control terminal device (dimming terminal device) 12 individual address setting unit 13 broadcast address setting unit Ls signal line

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 3K073 AA14 AA28 AA86 CA01 CB04 CC24 CE06 CE09 CG07 CG42 CH23 CJ01 CJ02 CJ03 CJ14 CJ16 5K032 BA08 CA11 CC10 CD03 DA02 DB19 DB24 5K048 AA06 AA08 BA07 CA04 CA07 CA11 CB02 EB01 EB02 GC02 HA01 HA02

Claims (6)

[Claims] A plurality of terminals each having an address are branched and connected to a signal line, and a transmission signal is transmitted and received between a transmission control device connected to the signal line and each of the terminals by a time division multiplex transmission method. And transmitting a transmission signal including data corresponding to the operation of a switch provided in the terminal to another terminal defined by the correspondence by using the correspondence of the address set in the transmission control device. A remote monitoring and control system that controls a load connected to the other terminal device according to (1), wherein the correspondence relationship is an individual control relationship in which one switch is associated with one circuit load, and one switch is a plurality of circuit loads. There is a collective control relationship to associate, and each terminal is an individual address that is a unique address for each terminal, and an address that is commonly set for a plurality of terminals. And a terminal processing unit provided in the terminal connected to the load, wherein the address data included in the transmission signal matches the individual address or the address data included in the transmission signal is the same. A remote monitoring and control system, wherein the load is controlled when it matches the broadcast address. 2. The terminal according to claim 1, wherein each bit position is one.
An address setting memory associated with the two addresses, an address flag is set at any bit position of the address setting memory, and an address corresponding to the bit position is used as an address of the terminal. 2. The remote monitoring and control system according to 1. 3. The load is a lighting load, and when the transmission control device receives data corresponding to an operation of a switch related to the collective control, a target of each lighting load associated with the collective control is set. 3. A transmission signal including a broadcast address and control data for instructing start of control of the lighting load and a transmission signal including a broadcast address after sequentially transmitting a transmission signal including an illuminance level and an individual address. A remote monitoring and control system as described. 4. A terminal processing unit provided in a terminal provided with the switch, wherein when address data included in the transmission signal matches a broadcast address, a transmission signal including data corresponding to an operation of the switch. 2. The remote monitoring and control system according to claim 1, wherein transmission of data is prohibited. 5. The remote monitoring control system according to claim 1, wherein the broadcast address is stored in a PROM. 6. The broadcast address according to claim 1, wherein the broadcast address is stored in a nonvolatile memory.
The remote monitoring and control system according to any one of the above.