JPH09200865A - Remote control system - Google Patents

Abstract

(57) [Abstract] [Problem] To automatically set addresses of operation and control terminals at initial startup. A central device (1) sequentially increments the address from address (1), and each terminal of a remote control switch (3) and a control terminal (4) sets the address to (1) and a signal of address (1) from the central device (1) is remote controlled. When the communication processing unit 31 of the switch 3 detects it, the channel switch 36 is operated to cut off the rear transmission line 2b, and the setting of the address 1 is stored in the address memory 35 and fixed. When the control terminal 4 and subsequent terminals detect the interruption of the transmission line, the address is incremented to 2. Then the central unit 1
When the signal of the address 2 is transmitted from the control terminal 4 and the control terminal 4 detects this address, the channel switch 46 is operated to cut off the rear transmission line 2c, and the setting of the address 2 is confirmed. In this way, the addresses are automatically set sequentially.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device using multiplex transmission.

[0002]

2. Description of the Related Art FIG. 7 is a diagram showing a remote control device for controlling a remote control relay using conventional multiplex transmission. In the figure, 1 is a central device for controlling the system, 2 is a transmission line consisting of a pair of signal lines, 3 is a remote control switch as an operation terminal, and is composed of 3a and 3b. Four
Is a control terminal, 5 is a remote control relay, and is composed of 5a to 5d. Reference numeral 6 is a remote control transformer for supplying operating power to the remote control relay 5.

A plurality of remote control switches 3, control terminals 4, remote control relays 5, and remote control transformers 6 are connected depending on the scale of the system. Reference numerals 7 and 8 are AC power supplies.

FIG. 8 is a diagram showing a detailed configuration of the central unit 1, the remote control switch 3, and the control terminal 4. In the figure, the same symbols as those in FIG. 7 indicate the same components. Reference numeral 11 is a power supply unit, 12 is a communication processing unit, and 13 is a control logic processing unit for controlling the entire system, which constitutes the central unit 1.

Reference numeral 31 is a communication processing unit, 32 is an address setting unit using a dip switch, 33 is a switch input unit, and 34 is a lamp display unit for displaying a status, which constitutes the remote control switch 3. Reference numeral 41 is a communication processing unit, 42 is an address setting unit using a DIP switch, 43 is a relay state monitoring unit that detects the state of the remote control relay 5, 44 is a relay control unit that controls the remote control relay 5, and a control terminal device. Make up 4.

Next, the operation will be described. When the voltage of the AC power supply 7 is applied to the central unit 1, the operating power is supplied from the power supply unit 11 to the communication processing unit 12 and the control logic processing unit 13. Then, the communication processing unit 12 supplies operating power to the remote control switch 3 and the control terminal 4 via the transmission line 2.

In the remote controller switch 3, the communication processing section 31
Accepts the setting of its own address from the address setting unit 32, initializes the switch input unit 32 and the lamp display unit 34, and enters the communication from the transmission line 2 and the switch monitoring state.

In the control terminal 4, the communication processing unit 4
1 receives the setting of its own address from the address setting unit 42, initializes the relay state monitoring unit 43 and the relay control unit 44, and enters the remote monitoring relay 5 and communication monitoring state.

Switch input section 3 by remote control switch 3
When the switch No. 3 is pressed, the switch input information is transmitted to the communication processing unit 31, and the communication processing unit 31 creates a communication message with its own address added, and then sends the communication message to the central unit 1 via the transmission line 2. To do.

The communication message is decoded by the communication processing unit 12 of the central unit 1 and then the control logic processing unit 13 is used as switch input information.
Sent to Information on the remote control relay 5 to be controlled corresponding to the pressed switch is input to the control logic processing unit 13 in advance by setting means (not shown).

The control logic processing unit 13 selects a relay to be controlled based on the switch input information and sends it to the communication processing unit 12 as relay control information, and the communication processing unit 12 adds the address of the control terminal 4 to the communication. Assemble the message,
Send to transmission line 2. The communication processing unit 41 of the control terminal device 4 checks the address in the communication message and, in the case of the communication message addressed to itself, decodes the control information and sends a control signal to the relay control unit 44.

The relay control unit 44 controls the remote control relay 5 based on the control signal, and confirms on the relay state monitor 43 whether the remote control relay 5 has operated correctly.
The communication result is edited into a communication message by the communication processing unit 41 and transmitted to the central unit 1.

The control result decrypted by the communication processing unit 12 of the central unit 1 is converted into the lamp display information of the corresponding remote control switch 3 by the control logic processing unit 13 and assembled by the communication processing unit 12 into a communication message. Are transmitted to the transmission line 2. In the remote control switch 3, the lamp display information is decoded by the communication processing unit 31, and the status is displayed on the lamp display unit 34.

Now, the control circuit of the remote control relay 5 will be described. 9 shows the connection state when the remote control relay is ON, and FIG. 10 shows the connection state when the remote control relay is OFF. FIG. 11 shows the current flowing through the remote control relay when it is ON / OFF. The remote control relay 5 has an auxiliary contact for switching the polarity of the operating circuit in addition to the main contact for controlling the ON / OFF of the load, and is connected to the operating circuit.

For the operation coil 51 of the remote control relay, a voltage reduced by the remote control transformer 6 from the commercial AC power source 8 to, for example, 30 V or less is passed through the relay state monitor 43 and the relay controller 44 of the control terminal 4. Is being applied.

The current flowing through the remote control relay 5 is as follows. In the steady state, when the remote control relay 5 is ON (FIG. 9), the positive half-wave I3 flows through the photocoupler of the relay state monitor 43, and the negative half-wave does not flow. When the remote control relay 5 is OFF (FIG. 10), neither a positive half wave nor a negative half wave flows. Thereby, the state of the remote control relay 5 can be detected. The monitor current I3 is usually 2 to
It is 3 mA.

When the SCR1 is turned on while the remote control relay 5 is on, an operating current I1 flows through the remote control relay in the positive half-wave, the main contact is switched off, the auxiliary contact is also reversed, and the direction of the diode is reversed. Operating current I
1 stops. SCR when remote control relay 5 is OFF
When 2 is turned on, the operation current I2 flows through the remote control relay in the negative half-wave, the main contact is switched to ON, the auxiliary contact is also inverted, and the direction of the diode is reversed, so that the operation current I2 is stopped. The operating currents I1 and I2 are usually 1
The current is about 00 mA.

[0018]

Since the conventional remote control device using multiplex transmission is configured as described above,
The remote control relay board must always have a remote control transformer 6 and an AC power supply 8, and a breaker for that is required, and even if transmission is normal, if the power of the remote control relay board is off, the state of the relay cannot be known. There are many system restrictions.

Further, it is necessary to individually set the addresses of the remote control switch 3 and the control terminal device 4, but troubles due to non-setting or setting error occur, and much work time is spent for setting work and setting confirmation. There was such a problem.

The present invention has been made in order to solve such a problem, and obtains a remote control switch and a control terminal which do not require manual setting of individual addresses, and a power supply for remote control relays (remote control transformer and A
The purpose is to obtain a remote control system that does not require (C power supply).

[0021]

[Means for Solving the Problems]

(1) In the remote control system according to the present invention, an operation terminal and a plurality of control terminals are connected in series to a central device by a transmission line, and the above-mentioned operation terminal is operated according to an operation command from the operation terminal. In the remote control system, the central device transmits the control signal together with the address signal to the control terminal device, and the control terminal device having the address performs the control operation of the controlled object based on the control signal. Of the operation terminal device and the control terminal device, each of the operation terminal device and the control terminal device has its own terminal device powered by the power supplied from the central device through the transmission line. In addition to operating the power supply, the power supply unit has a power storage unit that compensates for a short power failure by this power supply, a shutoff unit that shuts off the transmission line behind the self terminal, and a self address An address setting means is provided for setting the first address of the addresses in a predetermined order, and changing the address in the predetermined order each time the no-voltage due to the interruption of the transmission line is detected. When the address signal from the device coincides with the self-address, the self-address is confirmed, the rear transmission line is cut off by the blocking means, and each terminal at the rear is changed by the address setting means. Is.

(2) Further, an operation terminal and a plurality of control terminals are connected in series to the central unit by a transmission line,
The central device transmits a control signal together with an address signal to the control terminal in response to an operation command from the operation terminal, and the control terminal having the address controls the control target based on the control signal. In the remote control system that operates, each terminal of the operation terminal and the control terminal operates its own terminal by the power supplied from the central unit through the transmission line, and supplies the power. A power supply unit having a power storage means for compensating for a short-time power failure, and each of the terminals is provided with a switching means for cutting off the rear transmission line or the connection of the controlled object of the own terminal, and from the operation terminal. The central unit sends an address signal and a control signal to the control terminal in response to the operation command of the control terminal, and the control terminal having the address has the transmission line by the switching means. Connected to said controlled object with blocking the is obtained so as to control the controlled object in response to the control signal.

(3) Further, an operation terminal and a plurality of control terminals are connected in series to the central unit by a transmission line,
The central device transmits a control signal together with an address signal to the control terminal in response to an operation command from the operation terminal, and the control terminal having the address controls the control target based on the control signal. In the remote control system that operates, the central device is provided with address signal generating means for outputting address signals in a predetermined order, and each of the operation terminal and the control terminal is transmitted from the central device to the transmission device. A power supply unit having a power storage unit for operating a self-terminal unit by a power supply supplied through a line and compensating for a short power failure by the power supply, and each of the above-mentioned terminal units shuts off a rear transmission line or a self-terminal unit. Switching means for cutting off the connection of the controlled object and the self-address is set to the first address of the addresses in the predetermined order, and the transmission line is cut off. Address setting means for changing the address in the predetermined order each time the voltage is detected is provided, and each terminal unit determines its own address when the address signal from the central unit coincides with its own address when the system is started up. At the same time, the rear transmission line is blocked by the blocking means, and each terminal at the rear sets its own address by changing its own address by the address setting means.
After setting the address, the central unit sends an address signal and a control signal to the control terminal in response to an operation command from the operation terminal, and the control terminal having the address is switched by the switching means. The transmission line is cut off and connected to the controlled object to control the controlled object according to the control signal.

(4) Further, in the above (2) or (3), when one control terminal device has a plurality of control targets, any one of the plurality of control targets is provided to this control terminal device. The central unit transmits an address signal, a channel signal and a control signal in response to an operation command from the operation terminal, and the control terminal having the address is the channel signal. The corresponding control target is selected and controlled by the control signal.

(5) Further, in the above (2) or (3), the control target of the control terminal device is a remote control relay, and the control signal for controlling the remote control relay is dependent on the polarity of this control signal. This is a control signal for turning on and off the remote control relay.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. FIG. 1 is a block diagram of a remote control system of the present invention, and FIG. 2 shows internal configurations of a central unit, a remote control switch, and a control terminal. FIG. 3 is a diagram showing a flow of automatic address setting to the terminal device of the present invention.
1 and 2, 1 to 7 are the same as those described in the above-mentioned conventional device, and in FIG. 1, the remote control transformer 6 and the AC power source 8 of FIG. 7 are omitted.

In FIG. 2, 11 is a power supply unit, 12 is a communication processing unit, 13 is a control logic processing unit for controlling the entire system, 14 is a relay state monitoring unit for detecting the states of the remote control relays 5a and 5b, and 15 is Remote control relays 5a, 5b
The relay control unit 16 controls the transmission signal, and the transmission control switch 16 switches the transmission signal.

Reference numeral 31 is a communication processing unit, 35 is an address memory, 36 is a switching relay, 33 is a switch input unit, 34 is a lamp display unit for displaying a status, and 37 is a power supply unit. Four
Reference numeral 1 is a communication processing unit, 45 is an address memory, 46 is a switching relay, 47 is a power supply unit, and 48a and 48b are channel switches.

Next, the operation will be described with reference to FIGS. 2 and 3. (1) Immediately after the power is turned on (step 101), the system is initialized.

(2) When the voltage of the AC power supply 7 is applied to the central unit 1, operating power is supplied from the power supply 11 to the communication processor 12, the control logic processor 13, the relay monitor 14, and the relay controller 15. To be done. Here, the transmission changeover switch 16
Is initially connected to the power supply unit 11, and operating power is supplied from the power supply unit 11 to the remote control switch 3 and the control terminal 4 via the transmission lines 2a, 2b, 2c ,. ).

(3) In the remote control switch 3, the power supply unit 37 which is supplied with power from the transmission line 2a supplies the operating power supply to the inside of the remote control switch 3 (terminal 1 in FIG. 3) and at the same time has the power supply unit 37. Storage means (not shown)
Then, the electric charge is accumulated so that the memory does not disappear due to the power failure for the transmission time of several telegrams. A capacitor is usually used as the power storage means. Then, the communication processing unit 31 sets the self address in the address memory 35 to "1" (step 20).
1) The switch input unit 33 and the lamp display unit 34 are initialized.

(4) Similarly, in the control terminal 4,
First, at the same time that the power supply unit 47 supplied with power from the transmission line 2b supplies operating power to the inside of the control terminal 4, the power storage unit (not shown) in the power supply unit 47 causes a power failure for a transmission time of several telegrams. Accumulates enough electric charge to erase the memory. Then, the communication processing unit 41 also has the address memory 4
The self address in 5 is set to "1" (step 30)
1).

(5) The central unit 1 has the transmission changeover switch 16
Is connected to the communication processing unit 12, and the selection signal of the address "1" is output (step 103).

(6) Since the switching relays 36 and 46 of each terminal are initially connected to the succeeding transmission lines 2a and 2b, all the terminals to which the self address "1" is set respond and switch. The relays 36 and 46 try to disconnect from the subsequent transmission line 2, but when the switching relay 36 of the terminal device (remote control switch 3) closest to the central device 1 disconnects the rearward transmission line 2b (step 202), Since the power supply of the terminal device is cut off, the terminal device becomes inoperable and cannot switch the switching relay 36 and thereafter.

(7) The central unit 1 issues a type monitor signal in order to check the type of the terminal unit having the address "1" (step 104), and the terminal unit (remote controller) having the address "1" closest to the central unit 1 is sent. Only the switch 3) can return the remote control switch information or the control terminal information which is its own type (step 203). The remote control switch information or the control terminal information includes the address of the remote control switch.

(8) When the central unit 1 receives the type information, it sends a signal for canceling the selection of the address "1" (step 105), and the terminal unit of the address "1" which received the selection cancellation signal is switched relay. 36 is replaced and connected to the succeeding transmission line 2 (step 204).

(9) The terminal device having the address "1", which has correctly transmitted the type information, writes the address "1" to the address memory 35, completes the initialization process, and becomes the normal process, and thereafter the memory of the address memory is stored. Does not change. As a result, the address "1" of the terminal is fixedly set (step 205).

(10) The other terminals that cannot receive and transmit the type information increment the address "1" to the address "2" (steps 302 and 402).

(11) The central unit 1 then outputs the selection signal for the address "2" (step 106).

(12) Switching relays 36, 46 of each terminal
Is initially connected to the succeeding transmission line 2, all the terminals having the self address "2" react to try to disconnect the succeeding transmission lines after the switching relay 46, but the address " Central device 1 after the 1 ”terminal
When the control terminal 43 (terminal 2 in FIG. 3) close to the terminal disconnects the subsequent transmission line 2c by the switching relay 46 (step 303), the subsequent terminal (not shown) is powered off and the subsequent terminal Switching of the switching relay (not shown) of the container becomes impossible.

(13) When the central device 1 issues a type monitor signal in order to check the type of the terminal device having the address "2" (step 107), it is next to the central device 1 next to the terminal device having the address "1". Only the terminal device with the address "2" returns the control terminal device information of its own type (step 30).
4).

(14) When the central device 1 receives the type information, it sends a signal for canceling the selection of the address "2" (step 108), and the terminal device of the address "2" which received the selection cancellation signal is switched relay. 46 is returned to its original state and connected to the subsequent transmission line 2C (step 305).

(15) The terminal device having the address "2" which has correctly transmitted the type information writes the address "2" to the address memory 45, completes the initialization process, and becomes the normal process, and thereafter the address memory is changed. However, the address "2" is definitely set (step 306).

(16) The other terminals that could not transmit the type information increment the address "2" to the address "3" (step 403).

(17) Similarly, from address "3" to the last terminal device N, address selection, type confirmation, and address selection deselection are performed, and addresses up to N are confirmed (step 4).
04,109,405,110,406,111,40
7,408).

(18) Next, the central unit 1 receives the address N +
The selection signal of 1 is issued (step 112), and the address N +
The type 1 monitor signal is transmitted, but there is no response. When it is confirmed that there is no response (step 113), the central unit 1 ends the initialization process and returns to the normal process.

The relationship between the remote control switch for designating the control target and the control terminal 4 as the controlled device is the central unit 1.
It is designated and input by a setting means (not shown) provided in the.

FIG. 4 shows an example of the setting state of the controlled object by the setting means. In FIG. 4, the remote control switch to which the address "1" is set controls the remote control relays 1 and 2 (corresponding to channels 1 and 2) of the control terminal device having the address "3". The operation buttons are S11 and S12. Also, the remote control switch to which the address "2" is set,
Remote control relays 3 and 4 of the control terminal at address "3"
(Corresponding to channels 1 and 2) is controlled. The operation button is S
21 and S22.

In this figure, from the side closer to the central unit, "remote control switch with address 1", "remote control switch with address 2", "control terminal device with address 3", "remote control switch with address 4", "control terminal with address 5" Are connected in series in that order.

Here, the channel is a sub-number of a plurality of switches provided in one remote control switch, and a subordinate channel switch 48a of the control terminal 4 to be controlled is a combination of the address of the remote control switch and the channel number. , 48b to control the remote control relay 5 to be controlled
Identify a or 5b.

Here, when the polling signal from the communication processing unit 12 described in the second embodiment is used to supply the operating power to the remote control switch 3 and the control terminal 4, the transmission changeover switch 16 first sets the communication processing unit 12. It is possible to accumulate electric charge in the power storage means even if it is connected to.

With the configuration and operation procedure described above, it is possible to automatically set the address numbers to the sequentially connected terminals (remote control switch 3 and control terminal 4) when the system is started up. Therefore, it becomes unnecessary to set the addresses of the remote control switch and the control terminal device in advance, and the system adjustment work can be simplified. Further, since the operation power supply required for the remote control relay is supplied from the central unit, the remote control relay board does not require the power supply for the remote control relay and the remote control transformer.

In the above example, the method of incrementing the address number and sequentially increasing it has been described, but the same effect can be obtained by decrementing the address number. In addition to incrementing or decrementing the address, a predetermined order may be set and set, and the address may be changed and set in that order.

Embodiment 2 The block diagram of this embodiment is the same as that of FIG. 2 of the first embodiment. FIG. 5 shows a flowchart of normal operation, and FIG. 6 shows a waveform of a transmission signal of normal processing.

When the remote control relay 5 is controlled from the central unit 1, the transmission changeover switch 16 of the central unit 1 is normally connected to the communication processing section 12, and each remote control switch 3 and the control terminal 4 are assigned an address number. A polling signal (a signal requesting data transmission from the central device to the terminal device in order) is transmitted, and the power transmitted by this signal is the power supply unit of each remote control switch 3 and the control terminal device 4. It serves as a power source for 37 and 47, and also serves as a power source for storing electricity in a power storage means (not shown) in the power source section.

A series of information flow for remote control "remote control switch 3-> central device 1-> control terminal 4->
"Remote control relay 5-> control terminal 4-> central device 1-> remote control switch 3" is the same as the conventional device.

Here, the signal transmission waveform among the central unit 1, the control terminal 4 and the remote control relay 5 is changed according to the purpose of signal transmission as shown in FIG. This change is made by switching the transmission changeover switch 16 of the central unit 1.

The control of the remote control relay 5 via the remote control switch 3 and the control terminal 4 will be described with reference to the flowchart of FIG. (1) The switching relay 36 of the remote control switch 3 remains connected to the subsequent transmission line 2b (step 50).
0).

(2) The central unit 1 includes the transmission changeover switch 1
6 is connected to the communication processing unit 12 (step 120), an inquiry polling signal is transmitted, and communication with the remote control switch 3 is performed (step 122). (3) When the operation button of the remote control switch 3 is pressed (step 211), a message is returned to the central unit 1 as an answer to the polling signal (step 122).

(4) Upon receiving the answer message, the central unit 1 switches the transmission changeover switch 16 to the relay control section 15 (step 123). (5) At the same time, the control telegram to which the address of the control target of the predetermined operation button of the remote controller switch 3 shown in FIG. 4 is added is edited, and the address selection signal which is the edited control telegram is sent to the transmission line 2. (Step 124).

(6) The control terminal 4 which has received the address selection signal and coincides with its own address (step 50
1) The switching relay 46 is switched to the remote control relays 5a and 5b side (step 502). (7) By switching the switching relay 46 to the remote control relays 5a, 5b side, the connection to the subsequent transmission line 2 is cut off, and all the voltages of the transmission line 2 are transmitted via the corresponding channel switches 48a, 48b of the address.
a, 5b.

(8) Here, the channel switch 48a,
Which of the 48b is activated depends on the address selection signal sent from the central unit 1 (including the address and channel number as shown in FIG. 4, and the waveform of the address selection signal in FIG. 6). The control terminal 4, which has detected the address selection signal, decodes the channel number included in the address selection signal and corresponds to the corresponding channel switch 4
Remote control relay 5 to be controlled by controlling 8a and 48b
A and 5b are specified (step 503).

(9) In the central unit 1, the transmission changeover switch 1
6 is connected to the relay controller 15 and a one-shot AC half-wave signal for controlling the remote control relay 5 is transmitted to the transmission line 2 (step 125).

(10) This one-shot AC half-wave signal is sent to the operating coil 51 shown in FIGS. 9 and 10 as it is, and when the remote control relays 5a and 5b are turned on and when the OF is turned off.
By changing the polarity of the half-wave when performing F, ON or OFF control is performed with one shot (step 5).
04).

(11) Next, remote control relays 5a and 5b
Of the switching terminal 46 for control terminal 4
Is on the remote control relay 5 side, the transmission changeover switch 16 of the central unit 1 is connected to the relay monitor unit 14 (step 126), and the presence or absence of the monitor current I3 of FIG. The ON / OFF state is determined (step 127).

(12) When the control of the remote control relay 5 and the status monitoring are completed, the transmission changeover switch 16 is returned to the communication processing section 12 (step 128), and a signal for canceling the address selection is transmitted (step 129). .

(13) The control terminal 4 of the corresponding address receiving the address selection cancel signal returns the connection of the switching relay 46 to the transmission line 2C (step 505). (14) Then, a polling signal with each address number is sent to each remote control switch 3 and control terminal device 4, so that each remote control switch 3 and control terminal device 4 inquires about the next control message and supplies operating power. Return to the initial state.

As described above, since the operation power required for the remote control relay is supplied from the central unit,
A remote control relay power supply and remote control transformer can be dispensed with in the remote control relay panel.

Embodiment 3 The address automatic setting of the above-described first embodiment is applied to the operation terminal to be controlled by the control object, but the address setting of the operation terminal having the control object to perform proportional control or other control other than on / off control. Can also be applied to.

Fourth Embodiment In FIG. 1 of the first embodiment,
It is connected to the transmission line in the order of "central device → remote control switch → remote control switch → control terminal →", but also in "central device → remote control switch → control terminal → remote control switch → control terminal →" Well again
The order may be "central device → control terminal → control terminal → remote control switch → remote control switch". That is, the central device may be arranged at one end of the transmission line, and other terminals may be connected to the transmission line in series.

[Brief description of drawings]

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

FIG. 2 is an internal configuration diagram of a central device, a remote control switch, and a control terminal according to the first embodiment of the present invention.

FIG. 3 is an address automatic setting flowchart of the terminal according to the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of the relationship between the remote control switch and the control target of the control terminal according to the first embodiment of the present invention.

FIG. 5 is a control flowchart of a remote control relay according to the second embodiment of the present invention.

FIG. 6 is a diagram showing signal waveforms according to the second embodiment of the present invention.

FIG. 7 is a block diagram of a conventional remote control device.

FIG. 8 is a diagram showing a detailed configuration of a conventional central unit, remote control switch, and control terminal device.

FIG. 9 is a diagram showing a connection state when a remote control relay is ON.

FIG. 10 is a diagram showing a connection state when a remote control relay is OFF.

FIG. 11 is a diagram showing a current when the remote control relay is ON / OFF.

[Explanation of symbols]

1 central device, 2 transmission lines, 3, 3a remote control switch (operating terminal), 4, 4b control terminal,
5, 5a, 5b, 5c, 5d Remote control relay, 7, 8
AC power supply, 11 power supply section, 12 communication processing section, 13
Control logic processing unit, 14 relay monitor unit, 15 relay control unit, 16 transmission changeover switch, 31 communication processing unit,
33 switch input section, 35 address memory, 36,
46 switching relay, 37, 47 power supply section, 41 communication processing section, 45 address memory, 48a, 48b channel switch.

Claims (5)

[Claims] 1. An operation terminal and a plurality of control terminals are connected in series to a central device via a transmission line, and the central device is controlled by the central device in response to an operation command from the operation terminal. In the remote control system, in which a control signal together with an address signal is transmitted to the control device, and the control terminal device having the address controls the control target based on the control signal, the central device outputs the address signal in a predetermined order. Each of the operation terminal and the control terminal operates its own terminal by the power supplied from the central unit through the transmission line and supplies the power. The power supply section having a power storage means for compensating for a short-time power failure, a shutoff means for shutting off the transmission line behind the self terminal, and the self address as the first address in the predetermined order And an address setting means for changing the address in the predetermined order each time a no-voltage due to the transmission line interruption is detected.
Each of the terminals determines its own address when the address signal from the central device coincides with its own address, and
A remote control system characterized in that the transmission line on the rear side is shut off by the shutting off means, and each terminal device on the rear side changes its own address by the address setting means. 2. An operation terminal and a plurality of control terminals are connected in series to a central device by a transmission line, and the central device is controlled by the central device in response to an operation command from the operation terminal. In the remote control system, which sends a control signal together with an address signal to the control device, and the control terminal device having the address controls the control target based on the control signal, each of the operation terminal device and the control terminal device. The terminal device operates its own terminal device by a power supply supplied from the central device through the transmission line, and a power supply unit having a power storage means for compensating for a short power failure by the power supply, and each of the terminal devices. Switching means for shutting off the rear transmission line or shutting off the connection of the controlled object of the own terminal device, and the central device addresses the control terminal device in response to an operation command from the operation terminal device. And a control terminal having the above-mentioned address cuts off the transmission line by the switching means and connects to the controlled object to control the controlled object according to the control signal. A remote control system characterized by the above. 3. An operation terminal and a plurality of control terminals are connected in series to the central device by a transmission line, and the central device is controlled by the central device in response to an operation command from the operation terminal. In the remote control system, in which a control signal together with an address signal is transmitted to the control device, and the control terminal device having the address controls the control target based on the control signal, the central device outputs the address signal in a predetermined order. Each of the operation terminal and the control terminal operates its own terminal by the power supplied from the central unit through the transmission line and supplies the power. Power supply section having a power storage means for compensating for a short-time power outage, a switching means for disconnecting the transmission line at the rear of the terminal device or a connection of the controlled object of the own terminal device, The address is set to the first address of the addresses in the predetermined order, and the address setting means changes the address in the predetermined order each time the no-voltage due to the transmission line interruption is detected. When the address signal from the central unit coincides with its own address, each of the terminals determines its own address, and cuts off the rear transmission line by the cutoff means, and each of the rear terminals is set by the address setting means by itself. After changing the address and setting the address, after the address is set, the central device sends an address signal and a control signal to the control terminal device in response to an operation command from the operation terminal device, and The control terminal having an address cuts off the transmission line by the switching means and connects it to the controlled object so as to respond to the control signal. Remote control system being characterized in that so as to control the controlled object. 4. The channel selection according to claim 2 or 3, wherein when one control terminal device has a plurality of control targets, the control terminal device selects any one of the plurality of control targets. The central device transmits an address signal, a channel signal, and a control signal in response to an operation command from the operation terminal, and the control terminal having the address is a control target corresponding to the channel signal. Is selected and controlled by the control signal. 5. The remote control relay according to claim 2 or 4, wherein the control target of the control terminal is a remote control relay, and the control signal for controlling the remote control relay is controlled by the remote control relay according to the polarity of the control signal. A remote control system characterized by using a control signal to turn on and off.