JPH1141672A - Remote control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set automatically addresses of terminal equipment for operation and control and a branching unit. SOLUTION: A central unit 1 increases incrementally an address number sequentially from the address 1 at initial rising of a branching system, and a branching unit 9 and each of terminal equipment 101-192 start from the address 1 and when the address signal from the central unit 1 is coincident with its own address, changeover relays 941-949 are operated to interrupt a backward transmission line 2 and when the address between the central unit 1 is confirmed, its own address is confirmed. Then the changeover relay 941 is operated by a connection request from the central unit 1 to set one address to the system of the transmission line 21 according to the above method. Then the changeover relay 942 connects to a system of a transmission line 22 to set another address. Thus, the addresses up to the final transmission line 29 are set automatically.

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 As a method of performing remote control using multiplex transmission, an illumination control system as shown in FIG. 10 is well known. In the figure, 1 is a central device for controlling the system, 2 is a transmission line composed of a pair of signal lines, and 3 is a remote control switch as an operation terminal, which is composed of 3a and 3b. 4 is a control terminal, 5 is a remote control relay,
5a to 5d. Reference numeral 6 denotes a remote control transformer for supplying operating power to the remote control relay 5. A required number of remote control switches 3, control terminals 4, remote control relays 5, and remote control transformers 6 are connected in a required number depending on the scale of the system. Reference numerals 7 and 8 denote AC power supplies.

[0003] This system is a bus system in which each terminal is connected to the transmission line 2 in parallel. Therefore, it is necessary to distinguish each terminal, and usually an address is set using a dip switch or infrared communication. Thereafter, a two-stage setting is required in which a control method of pressing which operation switch is used to turn on / off which relay is separately set using a setting device is required.

[0004] On the other hand, Japanese Patent Application No. 8-9151 discloses that
As shown in FIG. 11, there is shown a method in which addresses are automatically set by connecting respective terminals in series to save the trouble of setting. Hereinafter, the automatic address setting will be described.

FIG. 12 shows the internal configuration of a central unit, a remote control switch, and a control terminal, and FIG. 13 is a diagram showing a flow of automatic address setting to the terminal. 11 and 12, reference numerals 1 to 7 are the same as those described in FIG. 10, and in FIG. 11, the remote control transformer 6 and the AC power supply 8 in FIG. 10 are omitted.

In FIG. 12, 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 state of the remote control relays 5a and 5b, and 15 is Remote control relays 5a, 5
Reference numeral 16 denotes a relay control unit that controls the transmission signal.

Reference numeral 31 denotes a communication processing unit, 32 denotes an address memory, 36 denotes a switching relay, 33 denotes a switch input unit, 34 denotes a lamp display unit for displaying a status, and 35 denotes a power supply unit. 4
1 is a communication processing unit, 42 is an address memory, 46 is a switching relay, 45 is a power supply unit, and 47a and 47b are channel switches.

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

(2) When the voltage of the AC power supply 7 is applied to the central unit 1, the power supply unit 11 supplies operating power to the communication processing unit 12, the control logic processing unit 13, the relay monitor unit 14, and the relay control unit 15. Is done. Here, the transmission switch 16
Are initially connected to the power supply unit 11, and the power supply unit 11 supplies operating power to the remote control switch 3 and the control terminal 4 via the transmission lines 2a, 2b, 2c,... (Step 102). ).

(3) In the remote control switch 3, the power supply unit 35 supplied with power from the transmission line 2a supplies operating power to the inside of the remote control switch 3 (terminal 1 in FIG. 13) and has the power supply unit 35 inside. The electric storage means (not shown) accumulates enough electric charge to keep the memory from being lost due to a power outage for a transmission time of several telegrams. Note that a capacitor is usually used as the power storage means. Then, the communication processing unit 31 sets its own address in the address memory 32 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, the power supply unit 45 supplied with power from the transmission line 2b supplies operating power to the inside of the control terminal 4, and at the same time, the power storage means (not shown) provided in the power supply unit 45 causes a power outage of about several transmission times of several telegrams Accumulates enough charge to keep the memory from disappearing. Then, the communication processing unit 41 also stores the address memory 4
2 is set to "1" (step 30).
1).

(5) The central unit 1 is equipped with a transmission switch 16
Is connected to the communication processing unit 12 to output a selection signal of the address "1" (step 103).

(6) Since the switching relays 36, 46 of each terminal are all initially connected to the succeeding transmission lines 2a, 2b, all terminals having their own address "1" react and switch. Although the relays 36 and 46 are to be disconnected from the subsequent transmission line 2, when the switching relay 36 of the terminal device (remote control switch 3) closest to the central device 1 disconnects the rear transmission line 2b (step 202), Since the power of the terminal device is turned off, the terminal device becomes inoperable and cannot be switched after the switching relay 36.

(7) When the central unit 1 issues a type monitor signal to check the type of the terminal unit having the address “1” (step 104), the terminal unit having the address “1” closest to the central unit 1 (remote controller) Only the switch 3) can return the remote control switch information or the control terminal information of the self type (step 203). Note that the remote control switch information or the control terminal information includes the address of the remote control switch.

(8) Upon receiving the type information, the central unit 1 transmits a signal for deselecting the address "1" (step 105), and the terminal having the address "1" receiving the deselection signal switches the switching relay. 36 is restored and connected to the subsequent transmission line 2 (step 204).

(9) The terminal having the address "1" that has successfully transmitted the type information writes the address "1" into the address memory 32, completes the initialization processing, and enters the normal processing. Do not change As a result, the address "1" of the terminal is determined and set (step 205).

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

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

(12) Switching relays 36, 46 of each terminal
Are connected to the succeeding transmission line 2 at first, all the terminals having the self address "2" react and try to disconnect the subsequent transmission lines after the switching relay 46, respectively. Central unit 1 after the terminal of "1"
When the control terminal 4 (terminal 2 in FIG. 13) closes the subsequent transmission line 2c by the switching relay 46 (step 303), the power of the subsequent terminal (not shown) is cut off and the subsequent terminal The switching of the switching relay (not shown) of the container becomes impossible.

(13) When the central unit 1 issues a type monitor signal to check the type of the terminal having the address "2" (step 107), the central unit 1 is located next to the central unit 1 next to the terminal having the address "1". Only the terminal having the address "2" returns the control terminal information of the self type (step 30).
4).

(14) When the central unit 1 receives the type information, it transmits a signal for deselecting the address "2" (step 108), and the terminal having the address "2" receiving the deselection signal switches the switching relay. 46 is restored, and the transmission line 2C is connected to the subsequent transmission line 2C (step 305).

(15) The terminal having the address "2" which has successfully transmitted the type information writes the address "2" into the address memory 42, completes the initialization processing, and proceeds to the normal processing, and thereafter changes the address memory. , The address "2" is determined and set (step 306).

(16) The other terminal which could not transmit the type information increments the address "2" to the address "3" (step 403).

(17) After the address "3", address selection, type confirmation and address selection cancellation are performed in the same way up to the last terminal N, and the address N is determined (step 4).
04, 109, 405, 110, 406, 111, 40
7,408).

(18) Next, the central unit 1 sets the address N +
1 (step 112), and the address N +
1 type monitor signal is sent, but there is no response. After confirming that there is no response (step 113), the central device 1 ends the initialization process and returns to the normal process.

In the normal processing, the transmission changeover switch 16 is connected to the communication processing unit 12, communicates with the communication processing unit 31 which monitors the switch input unit 33 in the remote control switch 3, and monitors the switch. . When it is detected that the switch is pressed, the control logic processing unit 13 calls the control terminal 4 corresponding to the corresponding remote control relay, switches the switching relay 46 and the channel switches 47a and 47b, and switches the transmission switching switch 16 to the relay control unit. 15 and the exciting current of the remote control relay flows.

Thereafter, the transmission changeover switch 16 is connected to the relay monitor section 14 and the ON / OFF state of the remote control relays 5a and 5b is monitored through the control terminal 4. The transmission changeover switch 16 is connected to the communication processing unit 12 again, and a blinking control signal of the lamp display unit 34 is sent to the remote control switch 3.

[0028]

The remote control system shown in FIG. 11 is free from the address setting work as compared with the system shown in FIG. 10, but has a signal path since all terminals must be connected in series. There is a disadvantage that the signal becomes very long and the signal is easily attenuated. This situation is shown in FIG.
Shown in

[0029] The terminals are usually distributed in buildings and premises. When all terminals are connected in series, in order for a signal to reach the last terminal, the signals must pass through all terminals as shown by the thick line in FIG. Generally, in a transmission system, the longest distance of a wiring is defined from the permissible limits of signal attenuation, delay, and distortion. In such a system, if all terminals are connected in series, the physical range of the system is narrowly limited.

The present invention has been made in order to solve such a problem. For example, when a transmission line is branched using the branching unit in the system shown in FIG. 9, the transmission line becomes as shown in FIG. The longest distance of the wiring is shortened like the wiring path of FIG. In a system in which the maximum distance of the wiring is specified, the physical range of the system is widened as compared with the case where the branch unit is not used. It is an object of the present invention to provide a remote control system that can branch a transmission line in the middle of the transmission line and that can automatically set an address.

[0031]

[Means for Solving the Problems]

(1) In a remote control system according to the present invention, a plurality of operation terminals and a control terminal are connected in series to a central device via a transmission line, and the above-described operation terminal is operated in response to an operation command from the operation terminal. A central device transmits a control signal together with an address signal to the control terminal, and the control terminal having the address performs a control operation of a control target based on the control signal. A branch unit is provided for branching to the transmission lines, and the operation terminal and the control terminal are connected to arbitrary positions of these transmission lines, and the central unit outputs address signals in a predetermined order. Address signal generating means, and connection request means for requesting connection of a transmission line to a branch destination of the branch unit, wherein the operation terminal and the control terminal Each terminal device and the branch unit operate its own device by a power supply supplied through a transmission line, and a power supply unit having a power storage unit that compensates for a short-time power failure by this power supply, and a power supply unit behind the own device. An interrupting means for interrupting the transmission line, and an address for setting its own address to the first address of the address in the predetermined order, and changing the address in the predetermined order each time no voltage is detected due to the interruption of the transmission line. Setting means, when starting up the system, the terminal unit and the branch unit determine the self address when the address signal from the central unit matches the self address, and cut off all the transmission lines behind by the cutting means. The rear terminal and the branching unit change their own addresses by the address setting means, and perform a terminal close to the central unit. Alternatively, the address determination operation of sequentially determining addresses from the branch units and the branch destination of the branch unit are switched by a connection request from the central device, so that the address determination operation of the terminal or the branch unit at the branch destination can be performed. In this case, the addresses of all the terminals and the branch units are set by combining with the branch destination switching operation.

(2) In the above (1), when the system is started up, one path from the central unit to an arbitrary last terminal is formed, and the addresses of the terminal and the branch unit on the path are sequentially set. When the address setting of the route is completed, the branch destination of an arbitrary branch unit is switched to form one route from the central unit to the last terminal of the switched branch destination. By sequentially setting the addresses after the switched branch destination, forming one path at a time by the above-described branch destination switching operation, and performing an address setting operation for each formed one path for all paths, The terminal and the address of the branch unit are set.

(3) In the above (1), when the system is started up, the first terminal or branch unit, the second terminal or branch unit,... The address is determined sequentially at the same order as the terminal or the branch unit. If there is a branch unit in the middle of the above determination operation, there are a plurality of the same terminal or branch unit at the branch destination. To determine all the addresses of all the same terminals or branch units, and then proceed to the address determination operation of the next terminal or branch unit to obtain the addresses of all the terminals and branch units. Is set.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is an example of a system configuration using a branch unit. Transmission line 2a from central unit 1
Is divided by the branching unit 9a into two systems of a transmission line 2b and a transmission line 2c. After passing through the remote control switch 3b, the transmission line 2c is connected to the branch unit 9b.
The transmission line is divided into two systems, a transmission line d and a transmission line 2e. Each system includes a remote control switch, a control terminal,
Alternatively, another branch unit is connected.

FIG. 2 shows the internal structure of the branching unit 9. In the figure, 91 is a communication processing unit, 92 is an address memory, 93 is a power supply unit, 941, 942,.
49 is a switching relay. 1 is a central unit, 7 is A
, 29 are transmission lines, 1
Numerals 01 to 192 denote terminals such as a remote control switch and a control terminal, which are the same as the internal configuration of FIG.

Next, the operation of the branch unit will be described. The branching unit first sets the address in the same manner as the other terminals, but after all the address settings are completed, the switching relays 941, 942... 949 remain ON, and the operation is performed except for communication. Stop. Normally, the switching relays 941, 942,... 949 are turned ON / OF unless the central device 1 is called in special circumstances (such as resetting).
F operation is not performed.

As an example, the address setting operation of the system of FIG. 2 will be described with reference to the flowchart of FIG. (1) After turning on the power (step 101), the central device 1
If it is known that there is a branch unit, a branch address memory is reserved in the control logic processing unit 13. The branch address memory stores data in order, and when fetching, the last stored data is fetched first. Initially, no data is contained (state 15
0).

(2) The central unit 1 supplies power to the terminal unit and the branch unit, waits for a charging period of the terminal unit / branch unit (step 102), and sends a selection signal of address 1 to the transmission line (step 103). ).

(3) The initial value of the branch unit address is "1" (step 601). When the selection signal of the address 1 comes from the central unit 1, the branch unit tries to turn off all the transmission switching relays 941, 942,... 949. At this time, if the branch unit is closest to the central device 1, the switching relays 941, 942,...
However, if another terminal is closest to the central unit 1, the terminal turns off the switching relay, so that the branch unit turns off the transmission line and switches the switching relays 941 and 942.
.. 949 cannot be turned off. The central device 1 sends the type monitor and the selection release to the address 1 and ends the setting process of the address 1 (steps 104 and 105). During this time, the branch unit that could not return the type monitor updates its own address to “2” (step 602).

(4) When the branch unit 9 connected to the J-th unit from the central unit 1 updates its own address and the own address becomes "J" (step 603), the central unit 1
Sends a selection signal to address J (step 130)
And the branching unit are transmission switching relays 941, 942,.
Turn off all 949 and disconnect the transmission line after that (step 604).

When the central unit 1 sends the type monitor (step 131), the branch unit returns data obtained by adding the number of branches to the type signal indicating the branch unit (step 605). After confirming that the type signal is the branch unit, the central unit 1 stores the address of the branch unit and each branch number in the branch address memory (step 13).
2). 151 shows the state of the branch address memory at this time.

(5) When the central unit 1 sends a selection release signal to the branch unit (step 133), the branch unit turns on all the transmission switching relays 941, 942,... 949, and determines the address "J". (Step 606,
607). Central device 1 extracts "address J branch 1" which is the last data of the branch address memory (state 15).
2) Send a connection request for branch 1 to address J (step 134). The branch unit always fixes the transmission switching relay 941 corresponding to branch 1 to the ON state (step 608).

(6) Next, the central unit 1 sets the address J + 1
(Step 135), all the terminals connected to the rear of this branch unit at address J + 1 try to turn off the transmission switching relay. At this time, the branching unit 9 turns off the switching relays 942... 949 of the transmissions other than the branch 1 fixed to ON (step 609). In this state, power is supplied from the central unit 1 from the address 1 to the branch unit 9 to (J-1).
, The branch unit 9 of the address J, and the terminal 111 of the address (J + 1) immediately after the transmission line 21 connected to the switching relay 941 of the branch 1.

The central unit 1 sends a type monitor to the address J + 1 (step 136), confirms the type of the terminal device 111, and sends out a deselection of the address J + 1 (step 137). At this time, the branch unit turns on the transmission switching relays 942... 949 which have been turned off (step 610).

(7) Similarly, the branching unit 9 turns off the transmission switching relays 942... 949 other than the branch 1 fixed to ON each time the central unit 1 sends out the selection signal.
Each time a deselection signal is sent out, the switching relay 942.
By repeating the operation of turning on 949, the address after the address J + 2 can be determined.

(8) When the address is determined up to the terminal 112 of the last address K connected to the transmission line 21 of the branch 1, the response returns even if the central unit 1 issues a type monitor to the next address K + 1. Not come (step 13
8). The central unit 1 checks the branch address memory. The branch address memory contains "address J branch 2" as final data as shown in state 152. Central device 1
Retrieves the data of "address J branch 2" (state 15
3) Send a connection request for branch 2 to address J (step 139). The branch unit always fixes the transmission switching relay 942 corresponding to branch 2 to the ON state (step 611).

(9) When the central unit 1 sends a selection signal of the address K + 1 (step 140), the branching unit 9 turns off the switching relays after the branch 3. Since the branch 1 has only an address up to K and is separated from the branch 3 and thereafter, every time the central unit 1 transmits the selection signal, the type monitor, and the deselection signal, the address after K + 1 is set to the transmission line 22 of the branch 2. It is set to the system.

(10) As described above, the central unit 1 sets the address of the terminal by transmitting the selection signal, the type monitor, and the deselection signal while sequentially updating the address. The branch address and the branch number are stored in the branch address memory, and when there is no response from the terminal device, the next branch address and the branch number are taken out from the branch address memory, and a connection request for the branch is transmitted.
The selection signal, the type monitor, and the deselection signal are transmitted again to set the address of the terminal. With this method, it is possible to set different address numbers for all terminals and branch units.

(11) The central unit 1 fetches the last data "address J branch i" from the branch address memory (step 154), sends a connection request (step 141), and the branch unit J transmits the branch i. (Step 612), the operation of initializing the branch unit 9 is completed.

(12) The central unit 1 sequentially sets an address for the terminal connected to the transmission line 29 which is the last branch i, sets an address N to the last terminal 192, and then sets an address N + 1 Is transmitted (step 142), confirming that there is no response, and terminating the initialization work.

(13) When shifting from the initialization work to the normal processing, all the transmission lines are connected by the switching relays of all the branch units and the terminals. And
Regardless of the command (including the address) from any remote control switch (operation terminal), it is transmitted to the central unit, and the central unit transmits to the control terminal of the commanded address and transmits the command (including the address). Make the command executable.

As described above, when there are a plurality of branch units, the branch address and the branch number of the later encountered branch unit are taken out first from the branch address memory and connected to each other. If one branch is written upward and each time the branch number is increased, the address is set clockwise from the central unit 1 along the left hand side of the transmission line as in the system of FIG. In the above, the address numbers are set in ascending order, but may be in descending order.

In the example of FIG. 5, the transmission line is connected in the branching unit so as to form one path from the central device in the upper part of the figure to the final terminal # 7, and if the address setting of the path is completed. The branch destination of the last branch unit # 6 connected to the route is switched, and the central unit switches the terminal # 9.
Is formed, an address corresponding to the unset address of this route is determined, and then the branch destination of the branch unit # 4 immediately before the final branch unit # 6 is switched, and the central unit switches to the final terminal. One path to the device # 13 is formed, and the address of this path is set.

As a modification of this embodiment, when the address setting of one path from the central unit in FIG. 5 to the final terminal # 7 is completed, the branch destination of the branch unit # 2 is switched to the final one. One route to the terminal device 19 may be formed, and an address may be set, thereby changing the route forming order. That is, the last terminal is # 7, # 9, ... # 2
Since there are six to 0, there are six routes to the central device, and addresses may be set for each of these routes in order.

As described above, in this embodiment, the address is set one by one over all the paths, so that the address can be set reliably even in a system having a branch line.

Embodiment 2 This embodiment shows an example of an order different from the address setting order shown in FIG. 5 of the first embodiment, in which addresses are set from the side closer to the central device.

FIG. 7 shows an example of the configuration of an address according to this embodiment. In FIG. 7, the numbers in parentheses (1) to (8)
Indicates the number of the device (terminal or branch unit) from the central device, and if there is a branch unit, a plurality of devices exist at the same position. For example, the sixth device has four devices, and the seventh device has five devices.
The address number shown in square brackets of [# 8] below the terminal device # 9 indicates the address number in the case of a modification of the second embodiment described later.

Next, the operation will be described. (1) Addresses # 1 to # 3 are determined in the same manner as in the first embodiment. (2) When the address # 3 of the terminal is determined, the branch destination of the branch unit of the address # 2 is switched according to the connection request from the central unit, and the address # 4 of the terminal is determined. That is, the addresses of the third two devices from the central device are determined.

(3) Next, the branch destination of the branch unit having the address # 2 is switched to determine the address # 5 of the branch unit as the fourth device and the address # 6 of the terminal. (4) Since the next branch unit # 5 is encountered, the branch units # 2 and # 5 are switched to determine the addresses of the terminal # 7, the branch unit # 8, and the terminal # 9. (5) Similarly, the addresses of the sixth to eighth devices are set.

The above branch destination switching operation is an operation in which all the branch units are always switched alternately, and the upstream branch unit closer to the central unit is preferentially switched alternately. The branch destination switching operation is performed by setting the logic of the central device.

Next, as a modified example of the second embodiment,
The case of the parenthesized address setting order such as [# 8] in FIG. 7 will be described. (1) From the central unit to the fourth, the address is determined by the same operation as described above. (2) In the fifth step, the addresses are determined from the top to the bottom of the figure. In this case, switching is performed with priority given to the branch unit # 5 downstream of the branch unit # 2. (3) In the sixth, the address is set from the top of the figure in the same manner. (4) In the seventh, the address is set in the same way from the top, but the branch units [# 10] and [# 11] Switching is performed with priority over unit # 2. (5) Finally, the terminal units [# 19] and [# 20] are set, and thereafter there is no response from the terminal, so the central unit determines that all addresses have been set, and ends the address setting operation. .

The advantage of this embodiment is that the address can be simply set from the side closer to the central unit, so that the logic of the address setting program of the central unit is simplified.

Embodiment 3 This embodiment shows an example of an order different from the address setting order shown in FIG. 7 of the second embodiment. The branch destination of a branch unit is alternately switched, and if there is a branch unit in the middle, the branch unit has priority. In such a manner that they are alternately switched.

FIG. 8 shows an example of the configuration of an address according to this embodiment. (1) Addresses # 1 to # 3 are determined in the same manner as in the first embodiment. (2) When the address # 3 of the terminal is determined, the branch destination of the branch unit of the address # 2 is switched according to the connection request from the central unit, and the address # 4 of the terminal is determined. That is, when a branch unit is encountered, the branch destination is always switched.

(3) Next, the branch destination of the branch unit at the address # 2 is switched to determine the branch unit address # 5 and the terminal address # 6. (4) Since the next branch unit # 5 is encountered, the branch unit # 5 is switched to determine the addresses of the terminals # 7 and # 8. That is, the downstream (rear) branch unit #
5 switches the branch destination in preference to the upstream (front) branch unit # 2.

(5) Next, after the addresses of the branch units of addresses # 9 and # 10 are determined, (6) the branch unit # 9 is switched to change the terminal units # 11 and #.
12, the address of # 13 is set.

(7) Next, the branch destination of the branch unit # 10 is switched to set the addresses of the terminals # 14, # 15, and # 16. (8) Finally, the branch destination of the branch unit # 17 is switched. To set the addresses of the terminals # 18, # 19 and # 20,
The setting operation ends.

As described above, in this embodiment, the branch destinations of the branch units are switched alternately. However, when a downstream branch unit is encountered, the branch destination is switched with priority given to the downstream branch unit. Things.

An advantage of this embodiment is that the downstream from a specific branch destination (for example, # 5) can be treated as one block.

Embodiment 4 In the first embodiment, as an example of the procedure for connecting the branches, the branch address and the number are taken out from the branch address memory in order and connected. However, the order of setting the addresses is not defined, and the connections are made randomly. It doesn't matter. The point is that it is only necessary to be able to connect one branch at a time without error.

That is, by combining an address setting operation for setting an address toward a terminal or a branch unit at the rear and a branch destination switching operation for switching the branch destination of the branch unit one branch at a time, the branched transmission is performed. Even in a configuration in which a terminal device or a branch unit is connected to a line, address setting can be performed.

[0072]

As described above, according to the present invention, an address is set by combining an address setting operation for setting an address backward and a branch destination switching operation for switching a branch destination of a branch unit. Therefore, address setting can be performed reliably and easily.

[Brief description of the drawings]

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

FIG. 2 is an internal configuration diagram of a branch unit according to the first embodiment of the present invention.

FIG. 3 is a flowchart for automatically setting an address of a branch unit according to the first embodiment of the present invention;

FIG. 4 is a flowchart for automatically setting a branch unit address according to the first embodiment of the present invention;

FIG. 5 is a diagram showing a configuration example of an address according to the first embodiment of the present invention;

FIG. 6 is a diagram showing a system configuration including a branch unit according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a configuration example of an address according to the second embodiment of the present invention;

FIG. 8 is a diagram showing a configuration example of an address according to a third embodiment of the present invention;

FIG. 9 is a diagram showing a configuration example of a conventional system without a branch unit.

FIG. 10 is a configuration diagram of a conventional remote control system.

FIG. 11 is a configuration diagram of a conventional remote control system.

FIG. 12 is a diagram showing an internal configuration of a conventional central device, remote control switch, and control terminal.

FIG. 13 is a flowchart of a conventional terminal automatic address setting.

[Explanation of symbols]

1 Central unit, 2, 21, 22, 29, 2a-
2e transmission line, 3,3a-3f remote control switch (operation terminal), 4,4a, 4b control terminal, 5,5a, 5b, 5c, 5d remote control relay, 6 remote control transformer, 7,8 AC power supply, 9 branch unit, 11 power supply unit, 12 communication processing unit, 13 control logic processing unit, 14 relay monitor unit, 15 relay control unit, 16 transmission changeover switch, 31, 41 communication processing unit, 32, 42 address memory, 35, 45 Power supply unit, 36, 46 switching relay, 33 switch input unit, 34 lamp display unit, 47a, 47b channel switch, 91 communication processing unit, 92 address memory, 93 power supply unit, 941, 942, 94
9 Switching relay.

Claims (3)

[Claims] 1. A plurality of operation terminals and a control terminal are connected in series to a central device by a transmission line, and the central device responds to an operation command from the operation terminal by the control terminal. In a remote control system for transmitting a control signal together with an address signal to a control unit and performing a control operation of a control target based on the control signal, the control terminal having the address branches the transmission line into a plurality of transmission lines. A unit is provided, and the operation terminal and the control terminal are connected to arbitrary positions of these transmission lines, and the central device outputs address signals in a predetermined order, Connection request means for requesting connection of a transmission line to a branch destination of the branch unit, wherein each of the operation terminal and the control terminal is connected to a branch unit. A power supply unit having a power storage unit that compensates for a short-time power failure by operating the own device by a power supply supplied via a transmission line, and a shutoff unit that shuts off a transmission line behind the own device. Address setting means for setting the self-address to the first address of the address in the predetermined order, and changing the address in the predetermined order each time no voltage is detected due to the interruption of the transmission line. At the time of raising, the terminal and the branch unit determine the self address when the address signal from the central unit matches the self address, and cut off all the rear transmission lines by the cutoff means,
The rear terminal and the branch unit change their own addresses by the address setting means, perform an address determination operation of sequentially determining addresses from the terminal or the branch unit close to the central unit, and a branch of the branch unit. The address is switched by the connection request from the central unit, and the address of all the terminals and the branch units is combined by combining with the branch destination switching operation for enabling the address determination operation of the terminal or the branch unit of the branch destination. A remote control system characterized by setting. 2. The remote control system according to claim 1, wherein
When the system is started up, one path from the central unit to any last terminal is formed, and the addresses of the terminal and the branch unit on the path are sequentially determined. When the address setting of the path is completed, By switching the branch destination of an arbitrary branch unit, forming one path from the central unit to the last terminal of the switched branch destination, sequentially setting the addresses after the switched branch destination of the path, By forming the paths one by one by the branch destination switching operation and performing the address setting operation for each formed path for all the paths, the addresses of all the terminals and the branch units are set. A remote control system. 3. The remote control system according to claim 1, wherein
When the system is started, the address is determined for each of the first terminal or the branch unit and the same as the n-th terminal or the branch unit sequentially from the central unit. If there is a branch unit in the middle of the above-mentioned determination operation, there are a plurality of the same terminal or branch unit at the branch destination, but the branch destination is switched and all the same terminal or branch units are switched. A remote control system characterized in that the addresses of all the terminal units and the branch units are set by determining all the addresses and thereafter shifting to the address determination operation of the next terminal or branch unit. .