SU610152A1 - Telesignal receiver - Google Patents

Description

(54) DEVICE FOR RECEIVING TELESIGNALS

one

The invention relates to the field of telemechanics and can be used in the telemechanization of dispersed objects.

A device for receiving television signals (1) is known, which contains shift registers, distributors, memory blocks and logic elements AND, OR.

The disadvantage of such a device is the saving time for entering into synchronization by Cycle and tact, which reduces the speed of information transfer.

The closest in technical essence to the invention is a device for receiving television signals 2, containing the first

a phasing unit, the first output of which is connected to the input of the first distributor, is; The swarm output is to the first input of the second distributor, the divider and to the first input of the first shift register. The first output of the first distributor is connected to the first input of the first element And, the output of which is connected to the second input of the first shift register. The second output of the first distributor is connected to the first input of the code analyzer, the output of the second distributor is connected to the second input, and the first output of the first shift register is connected to the third input. The outputs of the code analyzer are connected with the first inputs of the second element AND,

The second output of the first shift register is connected to the second input. The third output of the first shift register through the first decoder is connected to the second input of the second distributor.

A disadvantage of the known device is the low speed, due to the long time taken to synchronize. The aim of the invention is to improve the speed of the device.

The goal is achieved by introducing a switch into the proposed device, the first and second outputs of which are connected respectively to the i-th and (+ 1) -th information inputs of the switch, the second phasing unit, the third distributor, the second decoder, the second shift register, the third, the fourth and fifth elements I. The information inputs of the switch are connected to the inputs of the device, the first output is connected to the input of the first phasing unit and the second input of the first

element I, the second output to the input of the second block of the phasing and to the first input of the third element I, to the second input of which the first output of the second phasing unit is connected, and the output connected to the first input of the second shift register, the second input of which

the first input of the third distributor junction with the second output of the second phasing unit. The output of the second shift register through the second decoder is connected to the second input of the third distributor, the output of which is connected to the first input of the fourth element I. The third output of the second phasing unit is connected to the first input, the fifth And element, the output of which is connected to the second input of the first phasing unit. The output of the fourth element And is connected to the third input of the second distributor. The control input of the device is connected to the second inputs of the fourth and fifth And elements and to the second input of the switch.

The functional diagram of the device is shown in. drawing.

The device contains the second 1 and first 2 phasing blocks, the third 3 and second 4 distributors, the second 5 and the first 6 decoders, the second 7 and the first 8 shift registers, the third 9, the fifth 10, the fourth 11 and the first J2 elements And, the code analyzer 13 , the second element And 14, the first distributor 15 and the switch 16.

The device works as follows.

The information inputs of the switch 16 from the group of dispersed objects receive information from the tele-alarm system in the form of a continuous sequence of code combinations. The television signaling information that enters the device via the (i -f 1) th input is fed to the input of the phasing unit 1 and the AND 9 element, to the second input of which gates pulses are sent from the block 1. From the output of the AND 9 element, information is recorded in the sdvng 7 register After registration of the cyclic phasing code combination and its decoding by block 5, a reset pulse of a 3 c distributor is formed at its output, the initial state. Thus, the clock and cycle phases of the tele-alarm information received via the (i + 1) input are memorized by blocks 1 and 3, respectively.

At the same time, remote signaling code combinations coming through the i-th channel are fed to the input of the phasing unit 2 and the element 12, from the output of which the remote signaling information is written to the shift register 8. When the cyclic-phased code combination from the output of the unit b is registered, the clock distributor 4 enters impulse of its reset to the initial state. The code combinations of the tele-alarm system recorded in block 8 are analyzed by the code-13 analyzer for compliance with the encoding law. The results of the verification of code combinations are converted and fed to the input of the AND element 14, forming a resolution to enable the reading of the television signaling information. The remote signaling information supplied to the i-th input of the switch 16 is fed to the input of block 2 and to the element 12, is written to the shift register 8, checked and, in the absence of error, through the element 14 enters the actuating elements of the telecontrol system. The tele-alarm information received at the (i + 1) -th input of the switch 16 is fed to the input of the phasing unit in cycle 1 and to the element 9. The clock phase is remembered by unit 1. After decoding the cyclic phasing code pattern from the decoder 5, the distributor 3 remembers the cyclic the phase of the information arriving at the (i -f 1) -th input.

To switch the channel to the control channel, the input of the switch 16 from input 17 receives a pulse, which is simultaneously applied to

the second inputs of the elements 10 and 11. After the channel has been switched to the input of the phasing unit 2 and the first input of the element 12, the signaling information of the (i + 1) -th channel is fed, and the clock and cycle phases stored in blocks 1 and 3 through elements And 10

and 1 is rewritten into blocks 2 and 4, which ensures the registration of the telealarm information after the channel is connected.

Thus, with the reception of information on

The t-th input is simultaneously set to the initial clock and cyclic phases (i +}) of the input, and at the time of switching channels of the clock and cyclic phases of this information are set on blocks 2 and 4 by rewriting them from blocks I and 3.

The technical and economic efficiency of the proposed device consists in reducing the time for receiving the alarm signaling information, which generally improves the speed of the device. The reception time of the telealarm information from geographically dispersed communication objects consists of the phasing time per clock, the waiting time for the arrival of the frame phasing code pattern, the cycle phasing time, and the reception time of the telealarm information. With

The optimal choice of the number of cyclic phasing code combinations for setting the clock and cyclic phases of the device requires from two to 10 code combinations. The tele-signaling cycle may consist of two or more code combinations, therefore,

the time of reception of information is from 10 to 200% compared with the time of reception of known devices.

Thus, the use of the proposed device in remote control systems of a group of dispersed objects makes it possible to reduce the time of reception of an alarm about their state, which increases the speed of the system.

Claims (2)

1. USSR Author's Certificate No. 3 6886i Cl. G 06 F 5/02, 06/22/70. 2. USSR author's certificate number 317066, cl. G 06 F 11/10, 28.0769.