JPH04183196A - Remote control system - Google Patents

Abstract

PURPOSE:To simplify a transmission system and to reduce its cost by adding an area code indicating an area to control data to be sent to an objective control station and by making another control station received control data suppress sending control data. CONSTITUTION:When controlling an object control station 13 remotely from a control station unit 1 installed at control station 12a in area A, control data 16 to which an object control station address code 5 is attached is generated, and further by an area code attaching circuit 5 an area code 14 is attached, and a control signal is sent by a data sending/receiving circuit 4 to an object control station 13 via a transmission line 3. Here, when control station 12b in area B receives a control signal from area A by the area code detecting control circuit 7, the control station 12b, until receiving control completion data 19, suppresses sending control data for executing the control in area B in order not to be able to execute control in area B.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a remote control system, and particularly to remote control in a remote control system consisting of a plurality of control stations and a plurality of controlled stations assigned to each control station. Method [Prior Art] In the conventional remote control method, in a remote control system having multiple areas consisting of multiple control stations and multiple controlled stations assigned to each control station, a single transmission is required. Only one area's control data can be transmitted over a single area, so in order for a control station in each area to remotely control the controlled stations assigned to it, control data can be transmitted over multiple transmission lines provided for each area. had to be transmitted.

[Problem to be solved by the invention]

In the conventional remote control method described above, multiple control stations each control the controlled station, so in group control that transmits control data, multiple transmission paths must be provided, so the transmission system The problem is that it is complicated and expensive.

An object of the present invention is to provide a remote control method that can construct a remote control system without using a plurality of transmission paths, and that can simplify and reduce the cost of the transmission system.

[Means to solve the problem]

In the remote control system of the present invention, a plurality of control stations and a plurality of controlled stations are connected via a transmission path, and each of the control stations and the controlled station is assigned a remote control function. (A) Area code adding means for adding an area code indicating the area to the control data to be sent to the controlled station and sending the control data to the control station; B) Area code detection control means for receiving the area code transmitted from another control station and suppressing transmission of control data from the own station.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The remote control method shown in FIG. 1 consists of a control station device 1, a transmission line 3
A controlled station device 2 connected to the control station device 1 via
It consists of

The control station device 1 also includes a data transmitting/receiving circuit 4, a control input circuit 8, an area code addition circuit 5, an area Φ code detection control circuit 7, and a display circuit 6.

Further, the controlled station device 2 includes a data transmitting/receiving circuit 9 and a control output circuit 10.

Next, the operation will be explained.

The control station device 1 shown in FIG. 1 is installed in the control station 12a in area A shown in FIG. When the control station device 1 remotely controls the controlled station 13, the control input circuit 8 of the control station device 1 transmits control data to which a controlled station address code 15 is added, as shown in FIG. 16 is generated, and area code 14 is further added by area code adding circuit 5 to generate a control signal. This control signal is transmitted by the data transmitting/receiving circuit 4 to the controlled station 13 via the transmission line 3.

The controlled station device 2 of the controlled station 13 receives the control signal through the data transmitting/receiving circuit 9, and outputs the control output signal 11 for external control from the control output circuit 10.

When the control is completed, the controlled station device 2 returns the control data 17 to the control station device 1 of the control station 12a, and the control station device 1 displays on the display circuit 6 that the control has ended. At the same time, control completion data 1 is added with area code 18.
9 is sent to the transmission line 3.

Here, when the B area control station 12b intercepts the A area control signal using the area code detection control circuit 7,
Until the control completion data 19 is received, the sending of control data for executing control within the B area is suppressed, so that control within the B area cannot be executed.

In this way, by assigning the area O code 14, control signals for multiple areas can be sent and received on a single transmission path, so a remote control system can be constructed without using multiple transmission paths. can simplify and reduce the cost of the transmission system.

Note that in the above explanation, the control station 12b in area B is
The area control signal is intercepted by the area code detection control circuit 7, and control within the B area cannot be executed until the control completion data 19 is received. Upon detection, the execution of control in area B is suppressed, and after a predetermined time necessary and sufficient for completion of control in area A, the suppression of control data in area B is released; Control may also be executed.

〔Effect of the invention〕

As explained above, the present invention adds an area code to the control data sent from the control station, so that control signals for multiple areas can be sent and received over a single transmission path. This has the effect that a remote control system can be constructed without using a transmission line, and the transmission system can be simplified and lowered in cost.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
A system configuration diagram constructed using the remote control method shown in the figure, and FIG. 3 is a diagram showing data used in the remote control method shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Control station device, 2... Controlled station device, 3... Transmission path, 4... Data transmission/reception circuit, 5......・Control input circuit, 6...
Display circuit, 7...Area code detection control circuit, 8...Area code addition circuit, 9...
...Data transmission/reception circuit, 10...Control output circuit, 11...Control output signal, 12a, 12b...
...Control station, 13...Controlled station, 14...
... Area code, 15 ... Controlled station address code, 16 ... Control data, 17.
...Controlled station control end data, 18...
Area Φ code, 19...Control completion data. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] 1. A plurality of control stations and a plurality of controlled stations are connected via a transmission path, and the control stations and the controlled stations are respectively assigned to be remotely controlled. In a remote control system having an area consisting of: (A) an area code adding means for adding an area code indicating the area to control data to be sent to the controlled station, and sending the control data; B) A remote control system characterized by comprising: area code detection control means for receiving the area code sent by another control station and suppressing the sending of control data from the own station. 2. In the remote control system according to claim 1, when the area code detection control means receives the area code sent by another control station, it starts suppressing the sending of control data from the own station. , a remote control characterized in that when the control station that sent the area code receives control completion data sent from a remotely controlled controlled station, the suppression of sending control data from the own station is released. method. 3. In the remote control system according to claim 1, when the area code detection control means receives the area code sent by another control station, the area code detection control means sends out the control data from the own station in a predetermined manner. A remote control method that is characterized by inhibiting only time.