FR2622072A1 - System for multiple remote control from plural sets - Google Patents

Abstract

The invention relates to a process and device for remote control by way of a common line of a multiplicity of working apparatuses from one of the distant control sets. This device can afford the control of mobile or stationary hardware under various operating principles with the absence of ground cable and data transmission under safety voltage. Application: control of multiple circuits affording safety in the industrial, wine-producing and other sectors.

Description

 Multiple remote control system from many positions.

 Method and device for remote control via a common line of a multiplicity of execution apparatuses from one of the remote control stations.

 Until now, when control data had to be exchanged between equipment via a common transmission line, transmission equipment transmitted data comprising a destination address used to specify a receiving equipment and added to the command data, and the receiving equipment itself determined whether it was the one designated by the destination address. If the receiving equipment was indeed the one designated, it received the order data comprising its own address in order to control these associated terminals based on the data received. These provisions are not completely satisfactory and have the drawback of a lack of reliability, risk of interference and fragility of the system.

 The present invention overcomes these drawbacks by means of a system for transmitting command data between a multiplicity of materials coupled to a common command transmission line.

 More specifically, it relates to devices intended to allow various combinations between the different circuits to be controlled.

 The device according to the invention comprises in combination several sets of different circuits, namely - set of preparation circuits comprising as many distinct circuits as there are use circuits to be controlled, each of them comprising neither control switch .

- set of control circuits comprising as many control switch qutii: isiste of different shifts of control of the various circuits of use, these circuits being connected to the various relays controlling the eircuits of use of the respective combination, and this by l 'through the control contacts whose closing is controlled by the preparation circuits.

- control unit to desired destination equipment without transmission of destination address, both on site and remotely.

 In the present invention, transmission equipment transmits a control signal, which signal includes a content code signal portion representing the control content of the control data signal.

 The various features and advantages of the device according to the invention will appear during the following description.

This is given with reference to the attached drawing for information only and in which the figure represents the block diagram of the present device, a single circuit of use having been provided on this diagram to simplify the understanding thereof.

 As indicated above, the simplified diagram corresponds to the theoretical case where the present device would be used for the control of a single circuit of use.

 The diagram of the device represented comprises several distinct circuits, namely - a circuit L I for preparation, - a control circuit A, - a reception circuit B. This said circuit can also be controlled locally without having to use the control circuit A. These various circuits are connected to a single circuit for transmitting control data L.

 The control circuit A comprises one or more control switches with manual operation under so-called safety voltage.

 The figure shows information circulating in an online transmission circuit according to an embodiment of the present invention.

 The operation of this device is as follows: in order to be able to control the supply of the operating circuit B to the control circuit hub A, it is first of all necessary to proceed to the recording of this command on the preparation circuit L I.

 For this purpose, it suffices to connect the control circuit A to the preparation circuit L I by a dedicated socket.

When reception circuit B is connected to the same type of appropriate socket on the preparation circuit
L 2 ...., this has the effect of putting the device in service condition. Indeed, it will then suffice to actuate the control circuit A to immediately obtain the supply of the circuit
B controlling a user circuit as it is.

 On this overlock, it should be noted that no current flows in the control circuit A until its switch has been actuated. Under these conditions, the recording made on the preparation circuit E I can be maintained for an indefinite time.

 Obviously, the switch of the control circuit A must be of an appropriate type in order to remain in the latching position after operation.

 To reset receiver circuit B, perform a reset operation of the control circuit switch A.

 In reality, the present device is intended to ensure the control of multiple circuits according to the different combinations which it is possible to produce as a function of the number of these.

I1 it should be noted that in this device the control circuits A, ÀI, À 2 .... and the reception circuits 3, BI,
B 2 ..... can be moved and connected to any circuit, LI, X 2 ..... IZ .... for preparation.

 Because of its advantages, the present control device can be the subject of numerous applications. Thus it can be used to control multiple circuits ensuring security in the industrial, wine-making, and other fields .....

 In addition, this device can ensure the control of mobile or fixed equipment under different operating principles with the absence of cable on the ground and a data transmission under safety voltage.

 it should be noted that, in addition to the mobility advantages of the control and reception circuits, a priority of start-up is made both at the level of the receiver and at the level of the control circuit to avoid any false maneuvers.

 As a variant, (see figure) there are as many control switches A .... as there are different combinations of control of the various use circuits, these circuits being connected to the various relays B .... commanding the respective use circuits, and this, by means of a fixed transmission circuit L. The circuits B .... being made up of relays provided with mechanical and electric locks, this avoiding any false control operations of the from the operator.

Claims (4)

- REV3iCÂTI0NS -  1. Device for remote control of several electrical circuits according to various combinations, characterized in that it comprises, in combination, sets of circuits, of preparation comprising as many distinct circuits as there are circuits of use to be controlled , each of them composing a control switch and controlling the supply of the control relay of the corresponding use circuit.  2. The remote control device according to claim 1, is characterized in that there are as many control switches au'there are different combinations of control of the various circuits of use, these circuits being connected to various relays controlling the respective use circuits, and this, via a fixed transmission circuit.  3. The remote control device according to claim 2, characterized in that the reception circuit 3-1, B 2 consists of relays with electrical and mechanical interlocks, this avoiding any false control operations on the part of the 'operator.  4. The remote control device as claimed in claim 2, characterized by the fact that the fixed transmission line is mounted on the "spider" principle, which makes it possible to extend it to a very large number of preparation circuits without preparation d 'extraordinary extension and without disturbing the functioning of the existing transmission line.