SU623225A1 - Remote control command receiver - Google Patents

Description

(54) DEVICE FOR RECEPTION OF CUMAND TELECOMMUNICATIONS

The invention relates to the field of telemechanics and can be used in frequency-combination electing systems intended for telemechanization of industrial facilities with a dispersed location of controlled points. The known frequency system of telemechanics (11 using a serial clock code in the tonal frequency range, contains on the receiving side a linear unit, distributor, decombinator, the outputs of which are connected to the actuators. A disadvantage of the known device is low noise immunity The closest in technical essence to the invention is a device for receiving remote control commands, comprising a linear transformer, primary and the winding of which is connected by one output to one wire of the communication line, and the other output is connected via a capacitor to another wire of the communication line, and the coincidence element, the output of which is connected to the actuator, is the Myak immunity. command reception noise immunity. The goal is achieved by introducing a frequency code converter into a binary-decimal CODE, a memory block and a command selector, you Filled on coding elements, input. The ports of which are connected to the first outputs of the frequency code to binary number converter, and the outputs are connected to the inputs of the AND elements, the outputs of which are connected to the first inputs of the memory block. The secondary winding of the linear transformer is connected to the input of the frequency code converter to the binary-decimal code, the second outputs of which are connected to the second inputs of the memory unit. The outputs of the memory unit are connected to the inputs of the matching element. The block diagram of the device is shown in the drawing. The device contains a capacitor I, a linear transformer 2, a frequency code converter into a binary decimal code, a command selector 4, a memory block 5, a matching element 6 and | 1 execute; Y1 jY: em 7.

Converter 3 contains a pulse generator 8, a civia / KiiBaioRuift element 9, a standby multivibrator 10, a clock pulse generator AND, an immersion distributor 12, a trigger 13, logic elements AND 14, OR 15, and a binary-decimal counter 16.

Voter co.1si | d 4 is made on the coding elements 17, which is equal to the number of the frequency-frequency code, and the logical elements I 18.

The memory block 5 is made on two triters 19 and 20 and the element 21.

The device works with: 1 unit 1 o6 () a3 (jM

The telecontrol command is transmitted; 11111 to the telemechanical channel in the dual-frequency code f and f via capacitor 1 and transformer 2 is sent to the input of the rectangular impulse generator 8, the signal from which enters the element 14 and smoothes the e.1.mentment 9, forwards a reset pulse sent to the input of the multivibrator 10, the output of which is used to reset the pulse distributor 12 and the counter 16 to zero at the moment the remote-controlled frequency code appears, the pulse from the generator 11 is fed to the counting input of the distributor pulses 12, from the first output of which, via trigger 13n element 14, a signal is received to record the code on a three-digit counter 16. At the fourth output of distributor 12, a signal is written to end the recording, the fifth output serves to flip the decoded digital code 16 coding elements: 17 and elements And 18 selectors of commands (telecontrol) 4, on triggers - 19 and 20 blocks of memory 5. To observe the sequence of passing a code combination, the recording of the subsequent code in trigger 20 is forbidden only After writing the previous code in trigger 19. This blocking is performed by the element And 21. The outputs of the flip-flops 20 and 19 and the element And 21 are connected to the input of the matching element 6, which generates a command to actuate the actuating element 7 in the presence of signals from the triggers 19 and 20 .

At the end of the cycle of passing the telecontrol commands from the output of the pulse distributor 12, a reset signal is applied to the zero of counter 16 and flip-flops 19 and 20. As a result, actuating element 7 is disconnected and the device returns to its initial position for the next remote control command.

In order to ensure reliable when e.ma remote control commands within the limits of the deviation of the digital code z: 5 discrete reading of the code from the first decade of the counter "Units are not performed. For example, if the frequency code fi is 280 Hz and the code / 3 380 Hz, after being converted into a digital code, has the values K 56 and, then the flip-flops 19 and 20 register numbers at the values of K, 50 59 and.

Depending on the assigned first digital code for this remote-controlled contact | ) Of the end point, the coding elements of the 17 members of the command (teleurans.men) 4 have corresponding removable inserts with their rsiayka scheme.

The proposed device is possible to increase the value of the remote control ((; value and content C1 ()) of the commands of the telecontrol.

Claims (2)

1.Gi. P. D. Tele iipai5.iei-iH (.; 1 (; Dingnyi prom1, ts1: 1 obtyzhekty. .. "Energy, 1969, p. 23 .. 2.Katkov, F.A., and others. Gellhhpppcha, Kiev, “Gosener1oizdat, 1974. p. 142