SU698033A1 - Information transmitting device - Google Patents

Description

(54) DEVICE FOR TRANSFER OF INFORMATION

one

The invention relates to telemechanics and may find application in information transmission systems for distributed industrial facilities.

A device for transmitting information comprising a command for receiving and decrypting commands, information input and output blocks, communication channels, a counter 1 is known. However, this device has limited functionality.

The closest to the technical essence of this invention is a device for transmitting information, containing at the control point a pulse generator, an output which is connected to the counter input, the counter outputs are connected to the corresponding code buses, a command input block executed on the key elements whose outputs of the same name interconnected and connected to the corresponding command transmissions, the elements of which are And whose first inputs are connected to the response signals, the outputs of the elements And through the corresponding memory elements are connected to the inputs of the block. - analysis and display of information, at the controlled point-signal decoders

telecontrols and decoders of response signals, inputs connected to code buses, first And elements and second And elements, elements of a telecontrol signal, unit for executing commands and generating response signals 2.

In this device to transfer information between the control point

0 and a controlled item are used wire groups allocated in the channel si si. But at the same time, each controlled point for receiving a cyclically polling command from the control point has one additional individual wire and a unit for connecting a communication line. This leads to a large consumption of wires in the communication channel and the complexity of the device.

In addition, the telecontrol and reception of the response signals are carried out at different clock ticks of the counter, as a result of which it reduces 5s the speed of the device.

The aim of the invention is to increase the reliability and speed of the device.

This is achieved by the fact that in the device being developed at the control point, the inputs of the pulse distributor are connected to the outputs of the counter, the outputs of the pulse distributor are connected to the inputs of the command input unit and the second inputs of the first And elements, and the controlled point of the outputs of the teletravel signal decoder is connected to the first two second signals elements And, the second input of which are connected with. the corresponding command transmission buses, the outputs of the AND elements, through the corresponding memory elements of the telecontrol signals, are connected to the inputs of the instruction execution unit and generating response signals, the outputs of which are connected to the first inputs of the first And elements, the outputs of the decoders of the response signals, whose outputs are connected to the response signal bus. „

FIG. 1 is a block diagram of a control station; in fig. 2 - blokkhema controlled item ..

The device for transmitting information contains a pulse generator 1, a counter 2, a pulse distributor 3, elements of AND (response signals), elements of the response signal of the information analysis and display unit 6, a command input unit 7, key elements 8 - 8 - | , code bus 9, command transmission bus 10, response signal bus 11, telecontrol signal decoder 12-12 |, response signal decoder 13, first AND elements (telecontrol signals) 15 telecontrol signal memory elements 17p, command execution unit and response signals 18, the second elements And (response signals),

The operation of the device is as follows.

The signals from the output of the pulse generator 1 are fed to the input of the parallel binary counter 2, From the output of the counter 2, the binary code is fed to the inputs of the pulse distributor 3 and to the code buses 9 of the communication channel,

The pulse distributor 3 from the binary code arriving at its input generates pulses distributed over the channels of specified addresses that arrive at the inputs of the elements AND of the response signals 4 (the corresponding addresses and the inputs of the command input block 7.

The pulses arriving at the inputs of the command input unit 7 are distributed in time in the group of command transmission 10, depending on the position of the keys 8, -8 f and addresses, and arrive at the inputs of the telecontrol signal decoders 1, 2- 12 Y and the decoders of the response signals 1 3. | | - 13(.

When signals are received from the outputs of the decoders 12 and commands to the buses 10 to the inputs of the elements of telecontrol signals 14,), the latter are opened and from the output their signals go to the memory elements of telecontrol signals 1 (1, 17fi). elements 8p and affect the inputs of the command execution unit and the formation of response signals 18.

When binary codes 9 arrive at the inputs of the decoders of the response signals 12, signals appear at their outputs, which are sent to one of the elements of the AND elements of the response signals 19-19, and the other inputs of the elements And are given commands from the output of the block 18.

From the output of the elements And 19, -1E. bus 11 receives the response signals in the form of pulses distributed in time.

The response signals are sent to the repeats of the inputs of the And 4 y elements, and when they coincide with the signal received from the output of the distributor 3, they pass to the inputs of the memory cells 5-5 j /, and are remembered. From the outputs of the memory cells 5)., The signals arrive at the information analysis and display unit 6.

The introduction of a signal distributor allowed at each controlled point to exclude a communication unit and an additional wire to receive a command from the control point.

In addition, on one pulse of the pulse distributor, the command is transmitted and the response signals are received, which allows halving the cycle time of collecting and transmitting information while maintaining the number of commands transmitted per cycle and received response signals without complicating the equipment.

Claims (2)

1. Authors certificate of the USSR 479141, cl. G 08 C 19/16, 1973. 2. USSR author's certificate number 294163, cl. G 08 C 19/16, 1969 (prototype). AND