SU1453434A1 - Apparatus for receiving and transmitting remote control signals - Google Patents

Abstract

The invention relates to remote control devices using a reverse communication channel for transmitting tele- and voice signals using a reverse channel for receiving acknowledgment commands, voice signals and synchronization signals. It can be used for remote control of mine hoisting machines and other industrial facilities and objects using wired communication lines, radio lines, as well as other guiding communication systems. The aim of the invention is to increase functional reliability. The device includes a switch block 1, encoder 2, frequency dividers 9, 10, 11, generator 8, pulses, keys b, 7, mixers 12, 15, filters 13, 18, 23, 25 low frequency, filter 14 high frequency, transmitter 16 , the receiver 17 of the frequency selector 21 of the sync signal, the phase detector 24, the shift register 3, the start element 4, the interval generator 5, the low frequency amplifier 19, the loudspeaker 20, the microphone 22. The goal is achieved by synchronizing the reference pulse generator. 1 il. с (L с 4 СП СО 4 САД 4;

Description

This invention relates to remote control devices with application. a reverse communication channel for transmitting tele- and voice signals using a reverse channel for receiving acknowledgment commands, voice signals and synchronization signals, and more. be used for remote control of mine hoisting machines and other industrial facilities using wired communication lines, radio lines, as well as other guiding communication systems.

, The purpose of the invention is the development of | Functional reliability

The drawing shows a block diagram of the proposed device.

The device contains a block 1 of switches 1, encoder 2, shift register 3, start element 4, shaper 5 intervals, first key 6, second key 7, pulse generator 8 first frequency divider 9, second frequency divider 10, third frequency divider 11, first mixer 12, second low-pass filter 13, high-pass filter 14, second mixer 15, communication channel transmitter 16, receiver 17 with microphone, third low-frequency filter 18, low frequency amplifier 19, loudspeaker 20, clock frequency selector 21, microphone 22 , first filter 23 bottom frequency, phase detector 24 and fourth low-pass filter 25.

The device works as follows.

When taking a command using the switch block 1, the signal is fed to the input of the encoder 2, which encrypts a given command, from the output of the encoder-signal is fed to the shift register 3 to write the code word. The trigger element 4 writes to the shift register 3 and generates a signal to form time intervals, which organizes the continuous cyclic operation of the transmitting device. At the end of the writing of the parallel code word in the shift register 3, the further conversion of the parallel code to the serial one occurs.

From the first output of the 3 shift register, the signals arrive at the third input of the first key 6, and from the second output

register 3 shift to the third input of the second key 7, the second inputs of the first 6 and second 7 keys receive signals from the output of the start element 4.

From the output of the generator 8 pulses the signal of the reference frequency is fed to the inputs of the first 9, second 10 and third 11 dividers.

Signals with the frequency from the first 9 and second 10 dividers, respectively, are sent to the first inputs of the first 6 and in the second 7 keys.

V. the beginning of the code word is formed by the start-up, the pulse by the start element 4 with simultaneous feeding of signals to the second inputs of the first key 6 and the second key 7.

The generated starting pulse through the first and second frequencies, respectively, arrive at the first and second inputs of the first mixer 12. At the end of the starting pulse, the signals from the output of the shift register 3 are alternately fed to the third inputs of the first key b and the second key 7. From the output of the first key 6, the signal with frequency the first divider 9 is fed to the first input of the first mixer 12, and from the output of the second key 7 the signal with the frequency of the second divider 10 is fed to the second input of the first mixer 12. From the output of the first mixer 12, the partial-impu The soft code is fed to the input of the second low-frequency filter 13, from the output of which the signal is fed to the input of the high-frequency filter 14. From the output of the high-frequency filter 14, the frequency-pulse code arrives at the first input of the second mixer 15, to the second input of which a signal is fed with the frequency of the third divider 11, which monitors the communication channel.

The group signal from the output of the second mixer 15 is fed to the input of the transmitter 16, and from the output of the transmitter 16 to the communication line.

Speech signals are transmitted using microphone 22. The signal from microphone 22 is fed to the input of the first low-frequency filter 23, the output of which is fed to the third input of the second mixer 15. Constantly the group command signal and the control signal go to the first and second inputs of the second mixer communication channel. Thus, the group command and voice signal from the output of the second mixer 15 is fed to the input of the transmitter 16 and further to the communication line.

The acknowledgment signals and voice signals are received as follows. The signal from the input of the communication line is fed to the input of the receiver 17 and through the low-frequency filter 18 is fed to the input of the low-frequency amplifier 19 and from its output to the loudspeaker .20.

The reception of synchronization commands is carried out as follows.

From the output of the receiver 17, the synchronization signals are fed to the input of the frequency selector 21 of the clock signals, from the output of which the synchronization signals are fed to the second input of the phase detector 24, the error signal is fed to the input of the fourth. low frequency filter 25 and through a quarter low frequency filter 25 signal is fed to the input of the generator 8 pulses.

Claims (1)

Invention Formula A device for receiving and transmitting television signals containing a switch block whose output is connected to the first input of the encoder, the output of which is connected to the first input of the shift register, the first output of which is connected to the input of the trigger element, the second and third outputs to the first inputs of the first and second keys, respectively , the first output of the startup element is connected to the second inputs of the keys, the second output to the second input of the shift register, the third output -,, , ten 20 Q 453434 the trigger element is connected through the interval generator to the second input of the encoder, the generator and the pulses, the outputs of the first and second keys are connected to the first and second inputs of the first mixer, a high-frequency filter whose output is connected to the first input of the second mixer, which output via the communication channel transmitter and the receiver is connected to the microphone, the output of which is connected to the second input of the second mixer through the first low-frequency filter, the low-frequency amplifier, the output of which is connected to the input of the loudspeaker, is distinguished Not only that, in order to improve the functional reliability of the device, frequency dividers, a second, third and fourth low-pass filters, a frequency selector of the clock signal and a phase detector, a pulse generator output connected to the inputs of the first, second and third frequency dividers, the outputs of the first and the second frequency dividers are connected respectively to the third inputs of the keys, the output of the third frequency divider sub 30 is connected to the third input of the second mixer, to the first input of the phase detector, the output of which Ora low-pass filter connected .s vhodom.generatora pulses, the receiver output is connected through, the frequency selector clock signal to the second input of the phase detector and through a third low-pass filter - to the input of low-frequency amplifier, the output of the first mixer via a fourth filter connected to the input high frequency. 25 35