JP2001339780A - Control system of remote monitoring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate working operation for wiring. SOLUTION: A control system of remote monitoring comprises a higher level system A including a transmission controller 1 and an operating terminal unit 2 connected to the controller 1 via a signal line, a lower level systems B1-B4 including a control terminal unit 3 connected to the controller 1 and a load L, and a general unit 10 set up respectively between the higher level system A and each lower level systems B1-B4. The general unit 10 comprises a T/U function part connected to the controller 1 of the higher level system A via the signal line and a switching function part connected to the controller 1 of the system B1-B4 and the unit 10 holds a plurality of addresses for controlling and operating, that addresses are corresponded to those function parts, respectively. When matched between the address data included in the transmission signal to the T/U function part and the held controlling address, the transmission signal including the operating address responding to the controlling address is sent, in a time division multiple transmission system, to the signal line connected to the switching function part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring and control system including a transmission control device, an operation terminal device, a control terminal device, and the like, which are branched and connected to a two-wire signal line.

[0002]

2. Description of the Related Art Conventionally, there is a remote monitoring control system of this type having a configuration as shown in FIG. In the figure, one control terminal 3 can individually control up to four loads L individually. In other words, in addition to the control address individually given to each control terminal 3, a 2-bit load number is set in each control terminal 3, and which load L is controlled by specifying the load number is determined. It is configured so that it can be selected. The operation terminal 2 has an operation address and a load number set in the same manner as the control terminal 3. A maximum of four operation switches S can be connected to one operation terminal 2.

A plurality of operation terminals 2 and control terminals 3 are provided, respectively, and are connected to the transmission control device 1 via a two-wire signal line L _S. Each operation terminal 2 is set with an individual operation address, and each control terminal 3 is set with an individual control address. The operation terminal 2 and the control terminal 3 are individually recognized using the address.

[0006] The transmission control device 1 sends out a transmission signal V _{S in the} format shown in FIG. 15A to the signal line L _S. That is, a synchronization signal SY indicating the start of signal transmission, mode data MD indicating the mode of the transmission signal V _S , address data (including a load number) AD for separately calling the operation terminal 2 and the control terminal 3, and a load L , A control data CD for controlling the data transmission, a checksum data CS for detecting a transmission error, and a bipolar signal (a signal return period WT as a time slot for receiving a return signal from the operation terminal 2 or the control terminal 3). (± 24 V), and data is transmitted by pulse width modulation (FIG. 15B). In each operation terminal 2 and each control terminal 3, when the address data AD transmitted by the transmission signal V _S received via the signal line L _S matches the operation address or the control address set in advance,
While taking in control data CD from the transmission signal V _S ,
During the signal return period WT of the transmission signal V _S , the monitoring data is returned as a current mode signal (a signal transmitted by short-circuiting the signal line L _S via a suitable low impedance).

When data is transmitted from the transmission control device 1 to a desired operation terminal 2 or control terminal 3, the mode data M
D is the control mode, and the operation terminal 2 or the control terminal 3
The operation address or control address of sending a transmission signal V _S to the address data AD, the transmission signal V _S
Is transmitted to the signal line L _S , the operation terminal 2 or the control terminal 3 that matches the address data AD transmits the control data CD.
And returns monitoring data during the signal return period WT. In the transmission control device 1, the control data CD is transmitted to the desired operation terminal 2 or control terminal 3 based on the relationship between the transmitted control data CD and the monitoring data received during the signal return period WT.
Confirm that it was transmitted to. Further, the control terminal 3 outputs a load control signal for controlling the load L according to the received control data CD, and the operation terminal 2 displays a monitoring signal for performing an operation confirmation display of the load L according to the received control data CD. Is output. Here, the control terminal 3 can receive a load monitoring input from the load L. The control terminal 3 generates monitoring data based on the load monitoring input and sends out the monitoring data during the signal return period WT.

On the other hand, the transmission control device 1 has transmitted a transmission signal V _S is obtained by the mode data MD as the dummy mode always at regular time intervals, the operation terminal 2 is some information to the transmission control device 1 transmits When trying to do so, the synchronizing signal SY of the transmission signal VS in the dummy mode is synchronized with FIG.
An interrupt signal such as 5 (c) is generated. At this time, the operation terminal 2 sets an interrupt flag to prepare for the subsequent information exchange with the transmission control device 1. When receiving the interrupt signal, the transmission control device 1 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 2 that has transmitted the transmission signal and generated the interruption signal, the upper 4 bits of the address data AD of the transmission signal in the interruption polling mode are the upper 4 bits of the operation address set in the operation terminal 2. Are returned to the transmission control device 1 during the signal return period WT. The transmission control device 1 controls the operation terminal device 2 that has generated the interrupt signal to 16
Since the individual search operations are performed collectively, the operation terminal device 2 can be found in a relatively short time. When the transmission control device 1 acquires the operation address of the operation terminal device 2 which has generated the interrupt signal in this way, the mode data MD is set to the monitoring mode,
A transmission signal having the acquired address data AD is transmitted through a signal line L.
_In response to this transmission signal, the operation terminal device 2 returns the information to be transmitted in the signal return period WT. Finally, the transmission control device 1 sends a signal for instructing an interrupt reset to the operation terminal device 2 that has generated the interrupt signal, and releases the interruption flag of the operation terminal device 2.
As described above, information transmission from the operation terminal device 2 to the transmission control device 1 is performed by the transmission control device 1 from the transmission control device 1 to the operation terminal device 4.
Times signal transmission (dummy mode, interrupt polling mode,
(Monitoring mode, interrupt reset). When the transmission control device 1 wants to know a desired operation state of the control terminal 3, it is only necessary to transmit a transmission signal using the mode data MD as monitoring data.

As is apparent from the above-described operation, in the transmission control device 1, when the switch S provided on the operation terminal device 2 is operated, based on the operation data returned from the operation terminal device 2, the switch S correspondence generates control data to be transmitted to the control terminals 3 connected to the load L that is set in advance, the transmission signal V _S of the signal line L including the control data
_S, and transmits the control data to the corresponding control terminal 3 to control the load L.

Thus, the operation address and the control address also indicate the types of the operation terminal 2 and the control terminal 3. To briefly summarize the above operation, when there is an operation input from the switch S to the operation terminal 2, monitoring data corresponding to the operation input is returned to the transmission control device 1, and the transmission control device 1 When the control data CD is transmitted to the control terminal 3, the control terminal 3 outputs a load control signal to operate the relay, thereby controlling the load L. Here, since a load monitoring input is given to the control terminal 3 by the operation of the relay, the monitoring data corresponding to the load monitoring input is returned to the transmission control device 1 and the returned monitoring data is transmitted to the operation terminal 2. I do. The operation terminal 2 outputs a monitoring signal according to the transmission signal. The monitoring output is usually used for turning on / off an operation check lamp composed of a light emitting diode.

By the way, since the above-mentioned remote monitoring control system is arranged, for example, one system in one section for the sake of management, it is intended to perform control over a plurality of systems. In such a case, an integrated unit for linking the operation terminal 2 and the control terminal 3 between the systems is required. That is, as shown in FIG. 16, the signal lines L _SA and L _SB1 of the plurality of remote monitoring control systems are provided.
~L by interposing an integrated unit 10 _PA between _SB4, is one of the signal lines L _SA, L _SB1 ~L _SB4 other signal line transmission signal being transmitted to L _SA, the L _SB1 ~L _SB4 transmission Conversion to a transmission signal is being considered. Integrated unit 1
0 _PA, as shown in FIG. 17, the control terminals 3 and the first terminal portion 3a having almost the same functions, and a second terminal portion 2a having substantially the same function as that of the operation terminal 2 The load control signal of the first terminal unit 3a is used as an operation input of the second terminal unit 2a, and the monitoring signal of the second terminal unit 2a is used as a load monitoring input of the first terminal unit 3a. It is configured as follows.

Now, the upper terminal T _{A is connected} to the first terminal 3a.
Including a remote monitoring control system host system A, the lower terminal T _B1 through T _B4 transmission control device 1 connected through to the second terminal portion 2a which includes a transmission control device 1 connected through the The remote monitoring and control system is connected to the lower systems B ₁ to
And B _4. In FIG. 16, four lower systems B _{1 to} B _1
4 shows an integrated unit _10PA that enables the host system A to perform integrated monitoring and control. When the switch S connected to the operation terminal device 2 associated with the first terminal unit 3a is operated in the upper system A, a load control signal is output from the first terminal unit 3a, and the lower systems B ₁ to B ₁ are output. given the operation input to the second terminal portion 2a connected to B _4, the transmission signal to the control terminals 3 associated with the second terminal portion 2a in the lower system B ₁ .about.B ₄ is sent. That is, by operating the switch S connected to the operation terminal device 2 of the upper system A, the lower systems B _{1 to} B ₄
The load L connected to the control terminal 3 can be controlled. When the load L is controlled, the second terminal unit 2a
Since outputs a monitoring signal, a first terminal portion 3a load monitoring inputs receiving and sending a transmission signal to the upper signal line L _SA of host system A, the operation terminal connected to the switch S which is operated 2, the operating state of the load L is transmitted.

Japanese Patent Application Laid-Open No. 10-164677 discloses a remote monitoring system capable of suppressing an increase in size and cost even when setting operation and control addresses of a relatively large number of circuits in an integrated unit. A control device is disclosed.

[0012]

However, in the remote monitoring and control system using the integrated unit as described above, the wiring from the upper system to the lower system becomes parallel wiring, that is, a bundle of lines as shown in FIG. There was a problem. When wiring signal lines outdoors, it is necessary to shield the signal lines with metal pipes and bury them underground to avoid the effects of induced lightning surges. When it is bundled, construction becomes very troublesome. When the number of lower systems is small, there is a problem that extra terminals are generated.

Further, as shown in FIG. 19, an amplifier 4 interposed in the signal line L _S may be used, but the work of routing the signal line L _S in this way is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a remote monitoring control system that facilitates wiring work.

[0015]

According to a first aspect of the present invention, there is provided a transmission control apparatus including an operation terminal connected to the transmission control apparatus via a two-wire signal line. A first system, a second system including a transmission control device, a control terminal connected to the transmission control device via a two-wire signal line, and a load under the control of the control terminal; And an integrated unit interposed between the second system and the integrated system, wherein the operation terminal device holds an individually set operation address and operates in response to an operation input. Is transmitted to the two-wire signal line connected to the operation terminal in a time-division multiplex transmission system, and the control terminal holds the individually set control addresses, With division multiplex transmission method When the address data included in the transmission signal transmitted to the two-wire signal line connected to the control terminal matches the control address held, the device is under control according to the control data included in the transmission signal. It controls the load, the transmission control device holds the correspondence between the operation address and the control address included in the transmission signal transmitted on the two-wire signal line connected to the transmission control device, According to an operation address included in a transmission signal transmitted to a two-wire signal line connected to the transmission control device in a time division multiplex transmission system, a control address and control data corresponding to the operation address Is transmitted to a two-wire signal line connected to the transmission control device by a time-division multiplex transmission method, and the integrated unit is a transmission control device of the first system. A first terminal unit connected to the transmission control device of the second system via a two-wire signal line, and a first terminal unit connected to the transmission control device of the second system via a two-wire signal line. And a plurality of control addresses and a plurality of operation addresses respectively associated with the second terminal unit, and transmitted to the two-wire signal line connected to the first terminal unit in a time division multiplex transmission system. When the address data included in the incoming transmission signal matches the held control address, the transmission signal including the operation address corresponding to the control address is transmitted to the two-wire signal line connected to the second terminal unit. The transmission is performed by the time division multiplex transmission method.

According to a second aspect of the present invention, in the remote monitoring and control system according to the first aspect, one first system is provided, and a plurality of second systems are provided. An integrated unit is provided separately from the system, and each integrated unit is provided with a photocoupler that couples between the first terminal unit and the second terminal unit.

The third aspect of the present invention is the first or second aspect.
In the remote monitoring and control system according to the aspect, the first terminal of the integrated unit operates on a power supply of the first system via a two-wire signal line connected to the first terminal, and the second terminal includes: It is characterized by operating with a power supply of the second system via a two-wire signal line connected to the second terminal unit.

The invention according to claim 4 is the first or second invention.
The integrated unit for remote monitoring and control system described above is provided with a changeover switch, and the functions of the first terminal unit and the second terminal unit are switched by the changeover switch.

The invention according to claim 5 is the invention according to claim 3 or 4.
In the above described remote monitoring and control system, the integrated unit includes a container molded to have a common size of the distribution board and accommodating the first terminal unit and the second terminal unit.

The invention described in claim 6 is the third or fourth invention.
In the above described remote monitoring and control system, the integrated unit includes a container housing the first terminal unit and the second terminal unit, and the unit has a mounting hole.

The invention according to claim 7 is the invention according to claim 5 or 6.
In the remote monitoring and control system described in the above, 2
The terminal for connecting the wire-type signal line and the terminal for connecting the two-wire signal line to the second terminal portion are provided at both ends of the body or both ends of the body, respectively. It is characterized by.

An eighth aspect of the present invention provides a first system including a transmission control device and an operation terminal connected to the transmission control device via a two-wire signal line, a transmission control device, and the transmission control device. A plurality of second systems each including a control terminal connected to the control terminal via a two-wire signal line and a load under the control of the control terminal, and a first system and a plurality of second systems. A remote monitoring and control system constituted by an integrated system interposed therebetween,
The operation terminal holds an individually set operation address, and transmits a transmission signal including the operation address to a two-wire signal line connected to the operation terminal in accordance with a time-division multiplex transmission method according to an operation input. The control terminal holds the individually set control addresses, and transmits the signals transmitted to the two-wire signal line connected to the control terminal in a time division multiplex transmission system. When the address data included in the signal matches the control address held, the load under control is controlled according to the control data included in the transmission signal, and the monitoring data, which is the operation state information of the load under control, is transmitted. Including the transmission signal connected to the control terminal
The transmission control device transmits the signal to a signal line of a time-division multiplex transmission method.
The correspondence between the operation address and the control address included in the transmission signal transmitted on the wire-type signal line is retained, and transmitted to the two-wire signal line connected to the transmission control device in a time-division multiplex transmission system. According to the operation address included in the transmitted transmission signal, a transmission signal including a control address and control data corresponding to the operation address is transmitted to a two-wire signal line connected to the transmission control device. The transmission is performed by the division multiplex transmission method, and the monitoring data included in the transmission signal transmitted to the two-wire signal line connected to the transmission control device is received by the time division multiplex transmission method,
The integrated system includes a first terminal device connected to the transmission control device of the first system via a two-wire signal line, and a transmission control device of a plurality of second systems via a two-wire signal line. A plurality of individually connected second terminal devices, and a wireless communication system having a plurality of configurable communication channels respectively assigned to the first terminal devices and the plurality of second terminal devices to the plurality of second terminal devices. A first terminal device, comprising: a communication device; a plurality of wireless communication devices each having channel selection means for selecting one communication channel from the plurality of communication channels; and extraction means for extracting information from a wireless communication signal of the selected communication channel. And a plurality of control addresses and a plurality of operation addresses respectively associated with the plurality of second terminal devices, and When the address data included in the transmission signal transmitted to the two-wire signal line connected to the first terminal device by the double transmission method matches the control address held, the operation data corresponding to the control address is used. A transmission signal including an address is transmitted to a two-wire signal line connected to the second terminal device by a time-division multiplex transmission method, and a transmission signal including monitoring data is transmitted according to the transmission signal including the operation address. When the transmission signal including the monitoring data is transmitted to the two-wire signal line connected to the second terminal device by the time division multiplex transmission method, the transmission signal including the monitoring data is transmitted to the two-wire signal line connected to the first terminal device. It is characterized by being transmitted by a time division multiplex transmission system.

According to a ninth aspect of the present invention, in the remote monitoring control system according to the eighth aspect, the wireless communication is a wireless communication using radio waves, and the first terminal device and the second terminal device are molded to a common size of a distribution board. Each of which has a terminal structure capable of connecting an external antenna which is a part of the wireless communication device.

According to a tenth aspect of the present invention, in the remote monitoring control system according to the ninth aspect, the body has a mounting hole for mounting the body on a wall surface or a ceiling surface.

According to an eleventh aspect of the present invention, there is provided a transmission control device in which a plurality of operation terminals and control terminals each having an address are branched and connected to a two-wire signal line and connected to the two-wire signal line. A transmission signal is transmitted and received between each of the plurality of operation terminals and the control terminal in a time-division multiplex transmission system, and an operation provided in the operation terminal is performed by using an address correspondence set in the transmission control device. A remote monitoring and control system for controlling a load connected to the control terminal by transmitting a transmission signal including data corresponding to the operation of the unit to the control terminal defined by the correspondence,
A two-wire signal line connected to the transmission control device
The wireless communication system relays information included in a transmission signal transmitted by a time-division multiplexing transmission method to a linear signal line, and includes a relay amplifier that amplifies the transmission signal to be relayed.

[0026]

FIG. 1 is a block diagram of a remote monitoring and control system according to a first embodiment of the present invention, and FIG. 2 is a block diagram of an integrated unit of FIG. 1. Referring to FIGS. An embodiment will be described.

The remote monitoring and control system shown in FIG. 1 includes a host system A including (at least) a transmission control device 1 and an operation terminal 2 connected to the transmission control device 1 via a two-wire signal line; Each of (at least) a transmission control device 1, a control terminal 3 connected to the transmission control device 1 via a two-wire signal line, and a load L such as a lighting fixture under the control of the control terminal 3. a plurality of subsystems B ₁ .about.B ₄ including, is constituted by the integration unit 10 is interposed individually between the respective host system a and a plurality of subsystems B ₁ ~B _4. For example, in each of the upper system A and the lower systems B _{1 to} B _{4, a set} of an operation terminal 2 and a control terminal 3 (having a load L under control) associated with each other as necessary. May be further provided in one or more sets. In this case, it is needless to say that the correspondence between those addresses must be registered and set in the transmission control device 1 in the system.

In the above configuration, the transmission control device 1, the operation terminal device 2, the control terminal device 3 and the like are the same as the conventional one described with reference to FIGS. 10 will be described.

As shown in FIG. 2, the integrated unit 10 includes a T / U function unit 11 connected to the transmission control device 1 of the upper system A via a two-wire signal line _LSA , and a lower system B _And a switch function unit 12 connected to any one of the transmission control devices 1 to B ₄ via a two-wire signal line L _SB, and the T / U function unit 11 and the switch function unit 1
A plurality of control addresses and a plurality of operation addresses respectively associated with 2 are held and transmitted to a two-wire signal line connected to the T / U function unit 11 by a time division multiplex transmission method. When the address data included in the transmission signal matches the held control address, the transmission signal including the operation address corresponding to the control address is transmitted to the two-wire signal line L _SB connected to the switch function unit 12. The transmission signal including the monitoring data is transmitted to the switch function unit 12 by the time division multiplex transmission method in accordance with the transmission signal including the operation address.
When transmitted thereto to the signal line L _SB line type, which transmits in a time division multiplex transmission method transmission signal including the monitoring data to the connected two-wire signal line L _SA to T / U function unit 11 It is.

In the example shown in FIG. 2, the T / U function unit 11 and the switch function unit 12 are coupled to each other by two photocouplers PC so that bidirectional data transmission / reception is possible.
Is the transmission signal I / F 111, the optical address setting transmission / reception unit 1
12, the switch function unit 12 includes a storage unit 113 and a signal processing unit 110.
F121, optical address setting transmission / reception unit 122, storage unit 12
3, the display unit 124 and the signal processing unit 120. Further, terminals T _A and T _B for connecting the signal line L _SA and the signal line L _SB are provided, respectively.

[0031] Here, T / U function unit 11 and the switch function unit 12 is insulated by the photocoupler PC, configured to obtain the power through the respective signal lines L _SA and the signal line L _SB. That is, the transmission signal I / Fs 111 and 12
Reference numeral 1 denotes a circuit configured to generate DC power from a two-wire signal line and a circuit that transmits and receives signals. Also, T /
The U function unit 11 can set and store a plurality of control addresses by the optical address setting transmission / reception unit 112 and the storage unit 113. Similarly, the switch function unit 12
Also, the optical address setting transmission / reception unit 122 and the storage unit 123
Allows setting and storing of a plurality of operation addresses. The plurality of address values stored in the storage units 113 and 123 are stored in an array and are associated with each other.

Next, the control executed by the signal processing units 110 and 120 will be described together with the operation of the integrated unit 10 which is a feature of the first embodiment. First, in the host system A, when a desired switch of the operation terminal device 2 is operated, T / U (terminal unit) control of a certain operation address occurs.

Thereafter, in each integrated unit 10, when the address value received through the transmission signal I / F 111 matches the control address value stored in the storage unit 113, the signal processing unit 110 Is transmitted to the signal processing unit 120 of the switch function unit 12 via the photocoupler PC. Subsequently, the signal processing unit 120 is connected to the switch function unit 12 via the signal line _LSB by using an address corresponding to the number information among a plurality of operation addresses stored in the storage unit 123. Switch control is performed for the lower-level system. That is, the signal processing unit 120 converts the transmission signal including the operation address corresponding to the number information into the transmission signal I /
Control to send from F121 is performed.

Thereafter, in the lower system to be subjected to the switch control, the corresponding control terminal 3 completes the target T / U control for the load L under control,
A transmission signal including monitoring data as its own operation state information is transmitted to a signal line _LSB connected to the control terminal 3. As a result, the transmission signal including the monitoring data is once received by the transmission control device 1 of the lower system.

Thereafter, in the integrated unit 10 that has performed the switch control, the signal processing unit 120 receives the transmission signal including the monitoring data through the transmission control device 1 and the transmission signal I / F 121 of the lower system, and monitors the transmission signal. The information based on the data is transmitted to the signal processing unit 110 via the photocoupler PC, and a signal is output to the display unit 124 based on the monitoring data. Subsequently, the signal processing unit 11
0 transmits a transmission signal including monitoring data, which is operation state information of the control terminal 3, to the operation terminal 2 of the operated switch through the transmission signal I / F 111 and the transmission control device 1 of the higher system. . Thereby, the operation terminal device 2 can display a control result corresponding to the operation by, for example, an LED.

As described above, since the integrated unit 10 is individually interposed between the upper system A and each of the plurality of lower systems B _{1 to} B ₄ , bus-type wiring becomes possible as shown in FIG. In addition, the wiring length can be shortened and the wiring work can be facilitated. Also, without generating extra terminals,
The number of lower systems can be arbitrarily increased or decreased. Further, space can be saved.

FIG. 3 is a block diagram of a remote monitoring control system according to a second embodiment of the present invention, and FIG. 4 is a block diagram of an integrated unit of FIG. 3. The second embodiment will be described below with reference to these drawings. I do. However, for convenience of explanation, reference numerals 20A and 20B in parentheses shown in FIG. 3 are appropriately used. In FIG. 3, the operation terminal 2, the control terminal 3, and the load L under the control are not shown, but what is necessary according to the layout of the room and the like is indicated by dotted lines in each system. Will be installed.

The integrated unit 20 used in the remote monitoring control system shown in FIG. 3 is different from the integrated unit 10 of the first embodiment in that the direction of the transmission signal relayed by the integrated unit 20 is changed after connection. It is configured so that it can be easily changed. In the example of FIG. 4, the integrated unit 20 includes a terminal unit 21, a terminal unit 22, two photocouplers PC for performing bidirectional data transfer between the terminal unit 21 and the terminal unit 22, and a changeover switch SW20. Have been.

Here, the terminal portions 21 and 22 are
Each of them includes a transmission signal I / F 201, an optical address setting transmission / reception unit 202, a storage unit 203, a display unit 204, and a signal processing unit 200. A predetermined pair of switching terminals 200a and 200b in the signal processing unit 200 are connected to a switching switch SW20. Is short-circuited by T / of the first embodiment.
While functioning as the U function unit 11 or the switch function unit 12, when opened, the switch function unit 1 of the first embodiment
2 or the T / U function unit 11. Then, the one that functions as the switch function unit 12 enables the display unit 204.

The integrated unit 20 thus configured basically operates in the same manner as the integrated unit 10 of the first embodiment, so that the same effects as those of the first embodiment can be obtained.
After the connection, the changeover switch SW20 is operated, so that FIG.
As shown in the figure, the integrated units 20 (20A) and 20 (2
0B), the directionality of the transmission signal can be easily changed without rewiring. This allows
At the time of construction, the work of laying wiring in the panel becomes particularly easy.

In the first or second embodiment,
Each circuit part of the integrated unit shown in FIG. 2 or FIG.
Alternatively, it may be configured to be housed in the container shown in FIG.

The device body E10 shown in FIG. 5 is formed on the distribution board agreements dimensions, terminal T _A and T _B for connecting signal lines of two-wire is provided at both ends of the device body E10, this In this case, workability and uniformity of appearance are improved, and the effect of space saving and low cost can be obtained. W1 is a window of the display unit, and W2 is a window of the optical address setting transmission / reception unit.

The body E20 shown in FIG. 6 is configured such that terminals T _A and T _B for connecting signal lines are provided at one end of the body E20, and the body E10 shown in FIG.
By adding the integrated unit of (1) and the integrated unit of the container body E20 to the product, the number of options of a wiring routing method (saving construction) that is easy in construction increases.

The container E30 shown in FIG. 7 is formed in a box shape having ears E300 each having a pair of mounting holes E301 at both ends, and an integrated unit of such a container E30 is added to a product. As a result, it is possible to perform off-panel installation that does not require an installation location that makes full use of the advantages that do not require a power line.

FIG. 8 is a block diagram of a remote monitoring and control system according to a third embodiment of the present invention, and FIG. 9 is a partial block diagram of the integrated system of FIG. Will be described.

The remote monitoring and control system shown in FIG. 8 is a host system A including a transmission control device 1 and an operation terminal 2 connected to the transmission control device 1 via a two-wire signal line.
And a plurality of lower systems each including a transmission control device 1, a control terminal 3 connected to the transmission control device 1 via a two-wire signal line, and a load L under the control of the control terminal 3. and B ₁ ~B _4, is constituted by the integrated system 30, which is interposed between these upper system a and a plurality of subsystems B ₁ ~B _4.

In the above configuration, the transmission control device 1, the operation terminal 2, the control terminal 3 and the like are the same as the conventional one described with reference to FIGS. 30 will be described.

The integrated system 30 includes a host system A
The transmission control device 1 and the terminal device 31 connected via the signal line L _SA of 2-wire, a signal line L _SB of 2-wire transmission control device 1 of the plurality of subsystems B ₁ .about.B ₄ via the And a plurality of terminal devices 32 respectively connected to the terminal device 31 and a plurality of control addresses and a plurality of operation addresses respectively associated with the terminal device 31 and the plurality of terminal devices 32. When the address data included in the transmission signal transmitted to the signal line L _SA of 2-wire connected to the terminal device 31 in the transmission system matches the control address held, for operation corresponding to the control address a transmission signal including the address, sends out in a time division multiplex transmission method to the signal line L _SB of the connected two-wire to the terminal apparatus 32, heat transmission comprising monitoring data in accordance with the transmission signal including the operation address Terminal 3 but time division multiplex transmission method
When transmitted thereto to the signal line L _SB of 2-wire connected to 2, in a time-division multiplex transmission method transmission signal including the monitoring data to the signal line L _SA of 2-wire connected to the terminal device 31 Is to be sent.

In the example of FIG. 9, the terminal device 31 includes a transmission signal I / F 311, an optical address setting transmission / reception unit 312, a storage unit 313, a display unit 314, a wireless communication I / F 315,
Antenna 316, power supply unit 317 and signal processing unit 310
The terminal device 32 includes a transmission signal I / F 321, an optical address setting transmission / reception unit 322, a storage unit 323, a display unit 324, a wireless communication I / F 325,
Antenna 326, power supply unit 327 and signal processing unit 320
It consists of.

Here, the integrated system 30 has dedicated power supply units 317 and 327 in the terminal devices 31 and 32, respectively, and stores the address correspondence of a plurality of predetermined lower systems in the storage unit 313 in one terminal device 31. 1 except that it is configured to be storable and configured so that transmission and reception of signals between the terminal device 31 and each terminal device 32 are performed wirelessly.
The configuration is the same as the conventional integrated unit described with reference to FIGS. That is, the terminal device 31 is provided with a wireless communication I / F 315 as a wireless communication device having a plurality of configurable communication channels assigned to the plurality of terminal devices 32, and each terminal device 32 has a plurality of communication channels. Wireless communication I as a wireless communication device having channel selection means (such as a changeover switch or an infrared type channel setting transmission / reception unit) for selecting one communication channel from the communication channel, and extraction means for extracting information from a wireless communication signal of the selected communication channel. / F
325 are provided. In the example of FIG. 9, the antennas 31 are respectively provided to the wireless communication I / Fs 315 and 325.
6, 326 are connected, and a wireless system using radio waves is adopted as a wireless communication system, but an infrared system using infrared light may be used. Further, as a modulation method of the wireless system, for example, spread spectrum or the like may be used.

In the integrated system 30 having the above configuration, FIG.
19, the relay processing similar to that of the conventional integrated unit described with reference to FIG. 19 is performed wirelessly, so that the connection between the upper system A and the plurality of lower systems B _{1 to} B ₄ (particularly, wiring between buildings, etc.) Wiring laying work in places where laying work is difficult) is unnecessary (saving work).

Note that, in the third embodiment, the terminal device 3
1 or each terminal of the terminal device 32 shown in FIG.
Alternatively, it may be configured to be housed in the container shown in FIG.

A container E40 shown in FIG. 10 is formed to have a common size of a distribution board, and a terminal T for connecting a two-wire signal line.
_A and T _B are provided at one end of body E40, and terminal T _C for connecting the antenna is provided at the other end. In this case, workability and uniformity of appearance are improved. Also,
Since only the antenna is provided outside, when the container E40 is stored in the distribution board, the appearance in the distribution board is improved.

The container E50 shown in FIG. 11 is formed in a box shape having a pair of protruding pieces E500 each having a mounting hole E501 at each end, and is provided with two antennas (built-in antennas). Terminal device (3
By providing 1 or 32), the container E50 can be attached to a wall surface or a ceiling surface, and can be installed outside the panel.

FIG. 12 is a block diagram of a remote monitoring and control system according to a fourth embodiment of the present invention, and FIG. 13 is a block diagram of the relay amplifier of FIG. 12, which will be described below with reference to these drawings. I do.

The remote monitoring and control system shown in FIG. 12 has a transmission control device 1 in which a plurality of operation terminals 2 and control terminals 3 are branched and connected to a two-wire signal line and connected to a two-wire signal line. A transmission signal is transmitted and received between each of the plurality of operation terminals 2 and the control terminals 3 in a time-division multiplex transmission system, and the correspondence of addresses set in the transmission control device 1 is used. 2 for controlling a load L connected to the control terminal 3 by transmitting a transmission signal including data corresponding to the operation of the operation unit (switch) provided in the control terminal 3 to the control terminal 3 specified in the above correspondence. The feature of the fourth embodiment is that it is included in a transmission signal transmitted through a two-wire signal line connected to the transmission control device 1 and transmitted to the two-wire signal line in a time-division multiplex transmission system. Information transmitted wirelessly Performs relay, and a relay amplifier 40 for amplifying the transmission signal to be relayed.

In the above configuration, the transmission control device 1, the operation terminal device 2, the control terminal device 3 and the like are the same as the conventional one described with reference to FIGS. 40 will be described.

As shown in FIG. 13, the relay amplifier 40
Transmission signal I / F 411, wireless communication I / F 412,
Antenna 413, power supply unit 414, and signal processing unit 410
41, a transmission signal I / F 421, a wireless communication I / F 422, an antenna 423, and a power supply unit 42
4 and an amplifier 42 including a signal processing unit 420, and configured to function in the same manner as a conventional amplifier except that information included in a transmission signal is relayed by wireless communication.

That is, in the amplifier 41, the signal processing unit 410 receives a so-called full two-wire signal (voltage signal) from the transmission control device 1 via the two-wire signal line and the transmission signal I / F 411, and converts the carrier wave. It converts the information from the transmission control device 1 into a radio signal,
/ F 412 and antenna 413 are transmitted. In the amplifier 42, the signal processing unit 420 receives a wireless signal from the amplifier 41 via the antenna 423 and the wireless communication I / F 422, and transmits information from the transmission control device 1 to the transmission signal I / F 421 and a two-wire type. The transmission is controlled by the time division multiplex transmission method via the signal line.

In the amplifier 42, the signal processing unit 4
Numeral 20 receives a return signal (current signal) from the control terminal 3 via a two-wire signal line and a transmission signal I / F 421, converts a carrier into a radio wave, and transmits information from the control terminal 3 to a wireless signal. Controls transmission from the wireless communication I / F 422 and the antenna 423. In the amplifier 41, the signal processing unit 410 receives a wireless signal from the amplifier 42 via the antenna 413 and the wireless communication I / F 412, and transmits information from the control terminal 3 to the transmission signal I / F 411 and the two-wire system. The transmission is controlled by the time division multiplex transmission method via the signal line.

In the relay amplifier 40 having the above-described configuration, information included in a transmission signal transmitted by a time-division multiplex transmission method to a two-wire signal line is relayed by wireless communication.
Since the transmission signal to be relayed is amplified (substantially),
In particular, wiring work in places where wiring laying work is difficult, such as outdoors or between buildings, is unnecessary, and construction can be reduced.

In the examples shown in FIGS. 12 and 13, a wireless system using radio waves is adopted as the wireless communication system, but an infrared system using infrared light may be used.

[0063]

As is apparent from the above description, according to the first aspect of the present invention, the transmission control device and the operation terminal connected to the transmission control device via a two-wire signal line are included. A first system, a second system including a transmission control device, a control terminal connected to the transmission control device via a two-wire signal line, and a load under the control of the control terminal; And an integrated unit interposed between the second system and the integrated system, wherein the operation terminal device holds an individually set operation address and operates in response to an operation input. Is transmitted to the two-wire signal line connected to the operation terminal in a time-division multiplex transmission system, and the control terminal holds the individually set control addresses, The division multiplex transmission method When the address data included in the transmission signal transmitted to the two-wire signal line connected to the control terminal matches the control address held, the load under control according to the control data included in the transmission signal. The transmission control device holds the correspondence between the operation address and the control address included in the transmission signal transmitted on the two-wire signal line connected to the transmission control device, and According to the operation address included in the transmission signal transmitted to the two-wire signal line connected to the transmission control device in the division multiplex transmission system, the control address and the control data corresponding to the operation address are changed. And transmitting the transmission signal including the transmission signal to a two-wire signal line connected to the transmission control device in a time-division multiplex transmission system. A first terminal unit connected via a two-wire signal line; and a second terminal unit connected to the transmission control device of the second system via a two-wire signal line. A plurality of control addresses and a plurality of operation addresses respectively associated with the second terminal unit are retained and transmitted to the two-wire signal line connected to the first terminal unit in a time division multiplex transmission system. When the address data included in the incoming transmission signal matches the held control address, the transmission signal including the operation address corresponding to the control address is transmitted to the two-wire signal line connected to the second terminal unit. Since the transmission is performed by the time division multiplex transmission method, bus-type wiring becomes possible, and the wiring length can be shortened and the work of wiring is facilitated. In addition, the number of lower systems can be arbitrarily increased or decreased without generating extra terminals. Further, space can be saved.

According to the second aspect of the present invention, in the remote monitoring and control system according to the first aspect, the first system includes one
A plurality of second systems are provided, an integrated unit is separately provided between each of the plurality of second systems and the first system, and each integrated unit has a first terminal unit, a second terminal unit, Since a photocoupler is provided for coupling between the two, a bus-type wiring is possible, and the wiring length can be shortened and the wiring work can be facilitated. In addition, the number of lower systems can be arbitrarily increased or decreased without generating extra terminals. Further, space can be saved.

According to the third aspect of the present invention, in the remote monitoring control system according to the first or second aspect, the first terminal of the integrated unit is a two-wire signal line connected to the first terminal. Powered by the first system via the
Since the terminal unit operates with the power supply of the second system via the two-wire signal line connected to the second terminal unit, the wiring work is facilitated.

According to the invention described in claim 4, the remote monitoring control system integrated unit according to claim 1 or 2 is provided with a changeover switch, and the function of the first terminal unit and the second terminal unit is switched by the changeover switch. The directionality of the transmission signal can be easily changed without rewiring. This facilitates the work of laying the wiring in the panel, particularly during the construction.

According to a fifth aspect of the present invention, in the remote monitoring and control system according to the third or fourth aspect, the integrated unit is molded to a common size of a distribution board and houses the first terminal unit and the second terminal unit. Since the container is provided, the workability and uniformity of appearance are improved, and the effect of space saving and low cost can be obtained.

According to a sixth aspect of the present invention, in the remote monitoring and control system according to the third or fourth aspect, the integrated unit includes a container housing the first terminal unit and the second terminal unit. Is provided with a mounting hole, so that it can be installed outside the panel regardless of the installation location by making the best use of the advantage of no power line.

According to the seventh aspect of the present invention, in the remote monitoring and control system according to the fifth or sixth aspect, a terminal for connecting a two-wire signal line to the first terminal unit and a second terminal for connecting the two terminal type signal line to the second terminal unit. Terminals for connecting wire-type signal lines are provided at both ends of the body or both ends of the body, respectively, so there is a choice of an easy wiring routing method (saving construction) in construction. Increase.

According to the invention of claim 8, the first system including the transmission control device and the operation terminal connected to the transmission control device via the two-wire signal line, the transmission control device, and the transmission control device A plurality of second systems each including a control terminal connected to the control device via a two-wire signal line and a load under the control of the control terminal;
A remote monitoring and control system constituted by an integrated system interposed between a system and a plurality of second systems, wherein the operation terminal device holds an individually set operation address and outputs the operation address to the operation input. The control terminal transmits a transmission signal including an operation address to a two-wire signal line connected to the operation terminal in a time-division multiplex transmission manner in response to the control address. When the address data included in the transmission signal transmitted to the two-wire signal line connected to the control terminal in the time division multiplex transmission method matches the control address to be retained, the transmission signal is transmitted. The control signal is controlled according to the control data included in the control signal, and the transmission signal including the monitoring data, which is the operation state information of the controlled load, is transmitted to the two-wire signal connected to the control terminal. The transmission control device transmits the operation address and the control address included in the transmission signal transmitted on the two-wire signal line connected to the transmission control device. In accordance with an operation address included in a transmission signal transmitted to a two-wire signal line connected to the transmission control device in a time-division multiplex transmission system while maintaining the relationship, the control corresponding to the operation address is performed. Transmission signal including the address and control data for
The signal is transmitted to the two-wire signal line connected to the transmission control device by the time division multiplex transmission method, and is transmitted to the two-wire signal line connected to the transmission control device by the time division multiplex transmission method. The integrated system receives the monitoring data included in the transmission signal. The integrated system includes a first terminal device connected to the transmission control device of the first system via a two-wire signal line, and a plurality of second system devices. The transmission control device includes a plurality of second terminal devices that are individually connected to each other through a two-wire signal line, and the first terminal device and the plurality of second terminal devices each include a plurality of second terminals. Wireless communication device having a plurality of configurable communication channels assigned to a device, channel selection means for selecting one communication channel from the plurality of communication channels, and wire of the selected communication channel A plurality of wireless communication devices each having extraction means for extracting information from a communication signal, a plurality of control addresses and a plurality of operation addresses respectively associated with the first terminal device and the plurality of second terminal devices. When the address data included in the transmission signal transmitted to the two-wire signal line connected to the first terminal device by the time-division multiplexing transmission method matches the control address stored, A transmission signal including an operation address corresponding to the operation address is transmitted to a two-wire signal line connected to the second terminal device by a time division multiplex transmission method, and the transmission signal including the operation address is transmitted in response to the transmission signal including the operation address. When a transmission signal including monitoring data is transmitted by a time-division multiplex transmission method to a two-wire signal line connected to the second terminal device,
Since the transmission signal including the monitoring data is transmitted to the two-wire signal line connected to the first terminal device by the time division multiplex transmission method, wiring between the first system and the plurality of second systems is performed. Laying work is not required, and construction can be reduced.

According to the ninth aspect of the present invention, in the remote monitoring control system according to the eighth aspect, the wireless communication is a wireless communication using radio waves, and the first terminal device and the second
The terminal device has a body molded to the common size of the distribution board, and each of these bodies has a terminal structure that can connect an external antenna that is a part of the wireless communication device, so that workability and uniformity of appearance are improved. It will be good.

According to the tenth aspect, the ninth aspect is provided.
In the remote monitoring and control system described above, since the body has a mounting hole for mounting the body on a wall surface or a ceiling surface, the body can be installed at a desired place outside the panel.

According to the eleventh aspect of the present invention, a plurality of operation terminals and control terminals each having an address are branched and connected to a two-wire signal line, and the transmission control is connected to the two-wire signal line. A transmission signal is transmitted and received between the device and each of the plurality of operation terminals and the control terminal in a time division multiplex transmission system, and the correspondence of the address set in the transmission control device is used to provide the operation terminal. A remote monitoring and control system for controlling a load connected to the control terminal by transmitting a transmission signal including data corresponding to the operation of the operation unit to the control terminal specified in the above correspondence, the transmission control comprising: The wireless communication relays information included in the transmission signal transmitted by the time-division multiplex transmission method to the two-wire signal line via the two-wire signal line connected to the device, and relays the information. Because with a relay amplifier for amplifying a transmission signal that, in particular wiring work in difficult places wiring laying such between outdoor and buildings can be achieved becomes Ministry construction unnecessary.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a remote monitoring control system according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of an integrated unit of FIG. 1;

FIG. 3 is a configuration diagram of a remote monitoring control system according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of an integrated unit of FIG. 3;

FIG. 5 is a diagram showing an example of a container housing each circuit unit shown in FIG. 2 or FIG. 4;

FIG. 6 is a diagram showing an example of a container housing each circuit unit shown in FIG. 2 or FIG. 4;

FIG. 7 is a diagram showing an example of a container housing each circuit unit shown in FIG. 2 or FIG. 4;

FIG. 8 is a configuration diagram of a remote monitoring control system according to a third embodiment of the present invention.

FIG. 9 is a partial configuration diagram of the integrated system of FIG. 8;

FIG. 10 is a diagram showing an example of a container housing each circuit unit of each terminal device shown in FIG.

FIG. 11 is a diagram showing an example of a container housing each circuit unit of each terminal device shown in FIG. 9;

FIG. 12 is a configuration diagram of a remote monitoring control system according to a fourth embodiment of the present invention.

13 is a configuration diagram of the relay amplifier of FIG.

FIG. 14 is a configuration diagram of a conventional remote monitoring control system.

FIG. 15 is a diagram showing a format of a transmission signal, pulse width modulation, and an interrupt signal.

FIG. 16 is a diagram showing a conventional configuration of a remote monitoring control system using an integrated unit.

FIG. 17 is a block diagram of FIG. 16;

18 is a diagram showing a state of wiring from a higher system to a lower system in the remote monitoring control system of FIG. 16;

FIG. 19 is a diagram showing a remote monitoring control system using a conventional amplifier provided on a signal line.

[Explanation of symbols]

 Reference Signs List 1 transmission control device 2 operation terminal device 3 control terminal device L load 10, 20 integrated unit 11 T / U function unit (first terminal unit) 12 switch function unit (second terminal unit) SW20 changeover switches E10, E20, E30, E40, E50 Body 30 Integrated system 31 Terminal device 32 Terminal device 40 Relay amplifier 41 Amplifier 42 Amplifier

Claims (11)

[Claims] 1. A first system including a transmission control device and an operation terminal connected to the transmission control device via a two-wire signal line, a transmission control device, and a two-wire signal transmitted to the transmission control device. Remote monitoring comprising a second system including a control terminal connected via a line and a load under the control of the control terminal, and an integrated unit interposed between the first and second systems A control system, wherein the operation terminal holds an individually set operation address, and transmits a transmission signal including the operation address in response to an operation input to a two-wire signal line connected to the operation terminal. The control terminal holds the individually set control addresses, and the two-wire signal line connected to the control terminal in the time division multiplex transmission method. Transmission transmitted to If the address data included in the signal matches the control address held, the load control device controls the load under control according to the control data included in the transmission signal, and the transmission control device is connected to the transmission control device. A two-wire signal line connected to the transmission control device in a time-division multiplex transmission system, which holds a correspondence between an operation address and a control address included in a transmission signal transmitted on the two-wire signal line. A transmission signal including a control address and control data corresponding to the operation address is transmitted to a two-wire signal line connected to the transmission control device in accordance with the operation address included in the transmission signal transmitted to the transmission control device. The integrated unit includes a first terminal connected to the transmission control device of the first system via a two-wire signal line, and a second system. A second terminal unit connected to the transmission control device of the system via a two-wire signal line, a plurality of control addresses and a plurality of operation addresses respectively associated with the first and second terminal units. When the address is held and the address data included in the transmission signal transmitted to the two-wire signal line connected to the first terminal unit by the time division multiplex transmission method matches the control address held, A remote monitoring and control system for transmitting a transmission signal including an operation address corresponding to a control address to a two-wire signal line connected to a second terminal unit by a time division multiplex transmission method. . 2. A single first system is provided, a plurality of second systems are provided, and an integrated unit is separately provided between each of the plurality of second systems and the first system.
2. The remote monitoring and control system according to claim 1, wherein each integrated unit is provided with a photocoupler for coupling between the first terminal unit and the second terminal unit. 3. The first terminal of the integrated unit includes the first terminal.
Operate with the power supply of the first system via the two-wire signal line connected to the terminal unit, and the second terminal unit operates on the second system via the two-wire signal line connected to the second terminal unit. 3. The remote monitoring and control system according to claim 1, wherein the remote monitoring and control system operates on a power supply of the system. 4. The remote monitoring control system according to claim 1, wherein the integrated unit includes a changeover switch, and the functions of the first terminal and the second terminal are switched by the changeover switch. 5. The remote monitoring and control system according to claim 3, wherein the integrated unit includes a body molded to a common size of a distribution board and accommodating the first terminal and the second terminal. 6. The integrated unit according to claim 3, wherein the integrated unit includes a container for housing the first terminal portion and the second terminal portion, and the container has a mounting hole. Remote monitoring and control system. 7. A terminal for connecting a two-wire signal line to the first terminal part and a terminal for connecting a two-wire signal line to the second terminal part are provided at both ends of the body or both. 7. The remote monitoring control system according to claim 5, wherein both are provided at one end of the body. 8. A first system including a transmission control device and an operation terminal connected to the transmission control device via a two-wire signal line, a transmission control device, and a two-wire signal transmitted to the transmission control device. A plurality of second systems each including a control terminal connected via a line and a load under the control of the control terminal, and interposed between the first system and the plurality of second systems. A remote monitoring and control system including an integrated system, wherein the operation terminal device holds an individually set operation address, and transmits a transmission signal including the operation address to the operation terminal device in response to an operation input. The control terminal transmits the signals to the connected two-wire signal line in a time-division multiplex transmission system. The control terminal holds the individually set control addresses and transmits the control addresses to the control terminal in the time-division multiplex transmission system. Two wires connected When the address data included in the transmission signal transmitted to the signal line of the transmission line matches the held control address, the load under control is controlled according to the control data included in the transmission signal, and the load under control is controlled. A transmission signal including monitoring data, which is operation state information of the transmission terminal, is transmitted to a two-wire signal line connected to the control terminal in a time-division multiplex transmission method. The correspondence between the operation address and the control address included in the transmission signal transmitted on the connected two-wire signal line is retained, and the two-wire system connected to the transmission control device in a time-division multiplex transmission system. According to the operation address included in the transmission signal transmitted to the signal line, a transmission signal including a control address and control data corresponding to the operation address is transmitted to the transmission control. The transmission signal transmitted to the two-wire signal line connected to the transmission control device is transmitted to the two-wire signal line connected to the transmission control device by the time division multiplex transmission method. The integrated system includes a first terminal device connected to the transmission control device of the first system via a two-wire signal line, and a plurality of transmission control devices of the second system. And a plurality of second terminal devices individually connected to each other via a two-wire signal line, and the first terminal device and the plurality of second terminal devices are respectively assigned to the plurality of second terminal devices. Wireless communication device having a plurality of configurable communication channels, channel selection means for selecting one communication channel from the plurality of communication channels, and wireless communication signal of the selected communication channel A plurality of wireless communication devices each having extraction means for extracting information therefrom, and holding a plurality of control addresses and a plurality of operation addresses respectively associated with the first terminal device and the plurality of second terminal devices. If the address data included in the transmission signal transmitted to the two-wire signal line connected to the first terminal device by the time division multiplex transmission method matches the control address held, the control address is A transmission signal including a corresponding operation address is transmitted to a two-wire signal line connected to the second terminal device by a time division multiplex transmission method, and monitoring data is transmitted according to the transmission signal including the operation address. When the transmission signal including the monitoring data is transmitted to the two-wire signal line connected to the second terminal device by the time division multiplex transmission method, the transmission signal including the monitoring data is connected to the first terminal device. Remote monitoring control system, characterized in that for sending in a time division multiplex transmission method in two-wire signal lines. 9. The wireless communication is a wireless communication using radio waves, wherein the first terminal device and the second terminal device have bodies molded to a common size of a distribution board, and each of these bodies is a wireless communication device. 9. The remote monitoring control system according to claim 8, further comprising a terminal structure to which a part of an external antenna can be connected. 10. The remote monitoring control system according to claim 9, wherein the body has a mounting hole for mounting the body on a wall surface or a ceiling surface. 11. A plurality of operation terminals and control terminals each having an address are branched and connected to a two-wire signal line, and a transmission control device and a plurality of operation terminals connected to the two-wire signal line are provided. A transmission signal is exchanged with each of the control terminals in a time-division multiplex transmission system, and by using an address correspondence set in the transmission control device, an operation of an operation unit provided in the operation terminal is performed. A remote monitoring and control system for controlling a load connected to a control terminal device by transmitting a transmission signal including data to the control terminal device defined by the above-mentioned correspondence, wherein the two-wire system is connected to a transmission control device. Relays information included in a transmission signal transmitted by a time-division multiplex transmission method to a two-wire signal line through wireless communication, and amplifies the transmission signal to be relayed. A remote monitoring and control system comprising an amplifier.