RU2602001C1 - System for transmitting information to control objects - Google Patents

Abstract

FIELD: data processing.

SUBSTANCE: invention relates to data exchange systems responsible for exchange of information between devices of automatic control and controlled objects. System comprises first and second multichannel set-transmitters, control unit, linear device first and second communication channels, coded information generator, lock key, control panel, controlled object and monitor. Input of the monitor is connected to the second output of the generator of code information, wherein the controlled objects are configured to generate receipts when performing corresponding control actions, and the linear devices are configured to convert said receipts into messages that are similar to messages transmitted via the first communication channel; additionally the output of each controlled object is connected to the second input of the linear device, and the outputs of the second communication channel depending on the number of controlled objects are connected to the corresponding inputs of the control unit, its second output is connected to the input of the control panel.

EFFECT: higher reliability and accuracy of bringing instructions to controlled objects and monitoring the execution of the transmitted control action by the controlled objects.

1 cl, 1 dwg

Description

The invention relates to data exchange systems and can be used to implement the exchange of critical information between automation equipment and control facilities of special danger.

A known information system for transmitting critical information containing multichannel transmitters-transmitters connected by their outputs to the control unit and the code generator is connected by outputs through a blocking key with control objects, while the inputs of the transmitter-transmitters are connected to the outputs of the code information generator and the control panel [1 ].

This system is not reliable enough, due to the lack of the ability to confirm the transmitted message and receipt of the control objects performing the transmitted control action.

The closest known from its technical essence and the achieved result is the system of information transfer to control objects selected as a prototype [2]. The system for transmitting information to control objects contains two multi-channel transmitters-transmitters connected by outputs with control information to the inputs of the control unit. A blocking key in the system is connected between the data output of one of the two (first) transmitters and the input of the first communication channel and is connected via an enable input to the output of the control unit. The input of the code information framer is connected to the output of the blocking key, and the output is connected to the first inputs of the transmitters-transmitters, the second inputs of which are connected to the control panel. The inputs of the linear devices are connected to the corresponding outputs of the first communication channel, one (first) outputs to the control objects, and the other (second) outputs to the corresponding inputs of the second communication channel. The output of the second communication channel is connected to the first inputs of the master transmitters. Transmitters-transmitters are made with the possibility of forming preliminary commands and after confirmation of their acceptance by linear devices - executive commands. Linear devices, the number of which corresponds to the number of control objects, are configured to generate control actions on the control objects when the received preliminary and executive commands correspond to each other and not exceeding the maximum time interval from receiving a preliminary command to receiving an executive command.

The disadvantages of this system include the absence of:

- evaluation of confirmation of the control objects fulfilling the transferred control action and the formation of a repeated message when the control objects fail to transmit the transmitted control action on the first attempt;

- process visualization devices by which the dispatcher could monitor the current situation and make an appropriate decision on the displayed image.

Thus, the main technical problem to be solved by the claimed invention is directed is to increase the reliability and reliability of communicating commands to control objects, to ensure control by the control objects of the transferred control action by transmitting appropriate confirmations.

The specified technical result is achieved by the fact that in the system of transmitting information to control objects, consisting of two multi-channel transmitters-transmitters connected by outputs with control information to the first and second inputs of the control unit, a locking key connected between the data output of the first transmitter-transmitter and the input of the first a communication channel and connected via a granting input to the first output of the control unit, the input of the code information generator is connected to the output of the blocking key, and the output to the first input m transmitters, the second inputs of which are connected to the control panel, the inputs of the line devices are connected to the corresponding outputs of the first communication channel, the first outputs to the control objects, and the second outputs to the corresponding inputs of the second communication channel, the output of the second communication channel is connected to the first inputs transmitters, which are configured to generate preliminary commands and after confirming their acceptance by linear devices, executive commands, linear devices, the number of which corresponds to the number of control objects, made with the possibility of forming control actions on the control objects when the received preliminary and executive commands correspond to each other and not exceeding the maximum time interval from receiving the preliminary command to receiving the executive command, an additional monitor is introduced, the input of which is connected to the second output of the code information generator while the control objects are configured to generate receipts when performing the appropriate control influences, and linear devices - with the ability to convert these receipts into messages similar to those transmitted through the first communication channel, in addition, the output of each control object is connected to the second input of the linear device, and the outputs of the second communication channel according to the number of control objects to the corresponding inputs of the block control, the second output of which is connected to the input of the control panel.

The figure shows a block diagram of the inventive system, where it is indicated:

1 and 2 - the first and second multichannel transmitters;

3 - control unit;

4 - linear device;

5 and 6 - the first and second communication channels;

7 - shaper code information;

8 - blocking key;

9 - control panel;

10 - control object;

11 - monitor

The system operates as follows. Transmission from the control panel 9 of the commands is carried out only from one channel of the transmitter-transmitter 1 through the blocking key 8, and reception is carried out by both channels of the transmitter-transmitter 1 and 2 with character-by-symbol control and the formation of a repeated message due to transmission from the control unit 3 (if there is an error in message received via the second communication channel 6) to the control panel 9 to repeat the message when the control objects 10 do not comply with the transmitted control action.

The outputs of the respective linear devices 4, the number of which corresponds to the number of control objects 10, are connected to the inputs of the corresponding control objects 10.

For confirmation by the dispatcher of the possibility of transmitting commands, the control panel 9 with buttons is used, the position data of which (on / off) is supplied to both input channels of the transmitter-transmitter 1 and 2, while the inputs of the transmitter-transmitter 1 and 2 are connected to the outputs of the code information generator 7 and remote control 9 control.

The transmitters-transmitters 1 and 2 operate in time cycles according to the same algorithms and provide control information to the control unit 3. The control unit 3 includes a blocking key 8, allows data to be transmitted from the transmitter 1 to the code information generator 7 and to the communication channel 5 only when the control information from the channels of the transmitters-transmitters 1 and 2 coincides. If necessary, the manager enters it in the form of an appropriate command from the control panel 9, it enters the setters-transmitters 1 and 2, which generate data through the control unit 3 to the shaper 7 code information about the requested command in the first representation.

The dispatcher, making sure that the data in the first view corresponds to the command entered in the non-automated mode, presses the first confirmation button on the control panel 9, after which the setters-transmitters 1 and 2 send data about the requested command to the code information generator 7 in the second view through the control unit 3 .

The dispatcher, making sure from the picture on the monitor 11 that the data in the second view corresponds to the entered command, presses the second confirmation button on the control panel 9, after which the command is automatically turned on, that is, its output to the control objects 10.

The commands are transmitted alternately in time over a single-channel communication line, and the necessary reliability is achieved by transmitting the same command twice (preliminary and executive commands) with confirmation of the acceptance (acknowledgment) of the preliminary command on the corresponding linear device 4 and using the encoding of the transmitted information using a pseudo-random sequence. Transmitters-transmitters 1 and 2 form an executive command only in the case of receipt from the corresponding line device 4 of the receipt corresponding to the sent preliminary command with no exceeding the maximum time interval from the submission of the preliminary command to receipt of the receipt.

The linear device 4 generates a control action on the control object 10 only in the case of the arrival of an executive command corresponding to the received preliminary command with no exceeding the maximum time interval from receiving the preliminary command to receiving the executive command. After receiving the control action on the control object 10, a predetermined operation is carried out, on the basis of which a receipt is generated on it that characterizes the execution by the control object 10 of the transmitted control action. Such procedures are known [3], for example, in autonomous systems, the mismatch parameters are generated from the sensors of the control object without contact with the control panel.

In the linear device 4, the receipt is converted to a form corresponding to the procedure performed by the control object 10, and in the form of a codogram, it is transmitted via the second communication channel 6 to the corresponding input of the control unit 3. If the received message corresponds to that transmitted to the given control object 10, then the control procedure ends there. Otherwise, a corresponding message is transmitted from the control unit 3 to the control panel 9, which automatically generates repeated preliminary and executive commands. All procedures in the system, including time characteristics, are constantly monitored by the dispatcher according to the picture on the monitor screen 11 in a form convenient for visual information retrieval. In case of incorrectly executed control actions or if the maximum time interval between received executive commands is exceeded, the attention of the dispatcher can be attracted by sound signals.

The nodes of the claimed system can be implemented as follows: nodes 1-10 are shared with the prototype, node 11 together with node 9 is on a PC, for example, a laptop, and nodes 1, 2, 3, 7, 8 are made programmatically. Communication channels (data transmission systems) can be made on wire, fiber-optic and radio communication lines. Moreover, at the output of the first communication channel 5, the distribution functions of received information are performed, for example, using code division of messages, and at the output of the first communication channel 5, operations on combining information are carried out, for example, using temporary separation of messages, on the receiving side, the reverse operation: separation of messages by time.

Other known technical solutions in which the essential features coincide with the essential features of the invention are not found by the applicant, which confirms his compliance with the criterion of "novelty." The proposed system is industrially applicable and meets the criterion of "inventive step", because it does not explicitly follow from the prior art. Thus, the proposed technical solution meets the established conditions of patentability of the invention.

Using the proposed device will improve the reliability and reliability of bringing teams to control objects due to:

- confirmation of the control objects fulfilling the transmitted control action and the formation of a repeated message if the control objects do not perform the transmitted control action on the first attempt or exceed the specified delivery time;

- visualization on the monitor screen of all processes occurring in the system, according to which the dispatcher could monitor the current situation and make an appropriate decision;

- ensuring continuous automatic and non-automated control of the transferred control action and receipts of its implementation by the management objects.

The proposed system can be applied in railway transport, subway, nuclear power plants and other enterprises of special danger.

Literature

1. RF patent No. 2089429, cl. B61L 25/02, publ. 1997.

2. RF patent No. 2089429, cl. B61L 25/02, H04B 7/26, publ. 2004 (prototype).

3. Aircraft radio control systems. T. 1. The principles of construction of radio control systems. Fundamentals of synthesis and analysis. / Ed. A.I. Kanaschenkova and V.I. Merkulova. - M.: Radio Engineering, 2003 .-- 192 p. (sheet 8, Fig. B1, sheet 15).

Claims (1)

A system for transmitting information to control objects, containing two multichannel transmitters-transmitters connected by outputs with control information to the first and second inputs of a control unit, a blocking key, connected between the data output of the first transmitter-transmitter and the input of the first communication channel and connected via an enable input to the first the output of the control unit, the input of the driver of the code information is connected to the output of the blocking key, and the output is to the first inputs of the transmitters-transmitters, the second inputs of which are connected with a control panel, the inputs of the linear devices are connected to the corresponding outputs of the first communication channel, the first outputs to the control objects, and the second outputs to the corresponding inputs of the second communication channel, the output of the second communication channel is connected to the first inputs of the master transmitters, which are configured to preliminary commands and, after confirmation of their acceptance by linear devices, executive commands, linear devices, the number of which corresponds to the number of control objects, are made with the possibility of the formation of control actions on the control objects when matching the received preliminary and executive commands with each other and not exceeding the maximum time interval from receiving a preliminary command to receiving an executive command, characterized in that a monitor is inserted into it, the input of which is connected to the second output of the code information generator, when this control objects are configured to generate receipts when performing the appropriate control actions, and linear devices with the ability to convert these receipts into messages similar to those transmitted through the first communication channel, in addition, the output of each control object is connected to the second input of the line device, and the outputs of the second communication channel according to the number of control objects to the corresponding inputs of the control unit, the second output of which is connected to the input remote control.

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