SU1437893A1 - Device for receiving remote control signals - Google Patents

Abstract

The invention relates to the field of telemechanics and can be applied to control at a distance various objects in the power systems of oil fields, pipelines, mines, transportation, irrigation, telecommunications, etc. The purpose of the invention is to improve the noise immunity of the device. The device contains a receiver 1, a pulse generator 2, a counter 3, a decoder 4, a counter 5, a pulse distributor 6, trigger blocks 7, 8. The device operates as follows. The control signals from the output of the receiver 1 are fed to the first input of the counter 3, to the second input of which impulses come from the output-generator 2. The decoder 4 converts the binary code to the position code. The counter 5 and the pulse distributor 6 provide for recording the information of the telecontrol signal into the corresponding triggers of the trigger blocks 7.8. The device provides for the suppression of impulse noise arising in the pauses of the telecontrol ™ information signals. 3 il. (L

Description

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The invention relates to a satellite telemema and can be applied for controlling at a distance various objects in power systems, in oil fields, pipelines and mines, transport, irrigation equipment, and zalactros. ai, in factories; and also thanks: to the simplicity and low cost of the instrument for controlling the air, automobile, aircraft models, toy w, etc.

The aim of the invention is to increase the noise immunity of the device.

The block diagram of the device is shown; in fig. 2 — nremen.nye diagrams — jjv & i output sig1, alov device elements; in Fig. 3, a conventional circuit diagram of the device,

The device contains a receiver 1, a generator 2, a counter 3, a decoder 4 a counter 5, a distributor 6 pulses, blocks 7 and. 8 triggers.

The device works as follows.

The receiver receives, amplifies, and corrects the aiR of the weak and distorted in the communication line. Generator 2 rp abyv ay t p r o m u g ol n n 1 e impul s. Counter 3 converts the sequence number of the inputs to the second input from the output of the pulse generator 1 into a binary code, which with the help of the decoder 4 is converted into a decimal code. The decoder outputs are selected in such a way as that the production of not all, but four definite, preassigned, numbers, for example, 3, 5 8, 9 o The counter to 3 is zeroed at its second input. The second 5 recalculates when pulses are applied to the nepBbrii input and is zeroed when pulses are applied to the second input. The signal at the output of the distributor 6 pulses appears only in the case of our gate signal at the second input. The first distributor pulse distributor b is not used.

Trigger block 7 for pre-recording the states of distributor decoder b on the first input, and returning to the initial state is performed by applying a pulse to the second input (EB triggers). , at its second entrance (D-trggers type latch),;

The signal at the output of receiver 1 is a series of square-wave pulses of 9 different durations, divided by 1 by proceskut (frames).

The first pulse in the frame carries information on the first channel, the second through the second and. etc., the last pulse is a separating one and serves to create a frame synchronization pulse. The information transmitted through the channel is enclosed in the pulse duration of the 5 corresponding to these channels.

The frequency of the pulses 10 of the generator 2 is selected in such a way that the counter 3 during the passage of each information pulse will count to the specified 4iiana, paper meter. during a short pulse - no less than three, no more than 5; not less than six: not more than a pulse, irovo.y resh1khrO1- from 1i - to

nine,

The pulses coming from the generator 2 to the first input of the counter 3 are considered to be only for a time:

pass, the information points of the computer which come from the output of receiver 1 to counter 3. In the intervals between pulses, counter 3 is set to the zero state. Deiiffrator 4 decrypts the state of the first counter 3s, and during the passage of a short pulse (log.O) at the first output of the decoder A, an impulse P is emitted, the duration of which is equal to the duration of the generator pulses. 2, During the passage of a long frame synchronization pulse, the Ht-i-pulses are selected AND, 12. 13. 14, respectively, on the first, second, third and fourth outputs of the decoder 4, Taki about-tg, at the first output during the passage frames will be added to the number of pulses equal to the number of commands plus one. The pulses from this output are fed to the first (counting) input of the 5 KOTopbsi counter, which converts the sequence number of these pulses into a binary code. The signal from the outputs of the second counter 5 is fed to the inputs of the distributor 6

pulses.

At the second input of the decoder 4 there are pulses only at the moment of transmission of a long pulse (log.1)

And the frame synchronization pulse. Since the second pin of the decoder 4 is connected to the gate input of the distributor 6 pulses, the outputs of the decoder 4, corresponding to the channels through which the signal O is transmitted, do not pass, the outputs corresponding to the channels through which signals 1 are transmitted, pulses pass that is illustrated in diagrams 15, 16 and 17. Each output of the distributor 6. pulses (except the first) is connected to the input of the corresponding trigger of block 7 of the flip-flops. During the passage of the frame, the states of the outputs 7, 18 and 20 of the distributor 6 pulses are recorded in the cells of the block 7 of the flip-flops. The outputs of the block 7 of the flip-flops are connected with the corresponding first points of the block of the 8 flip-flops. At the time of the passage of the frame sync pulse 1 at the third output of the decoder 4, a pulse 13 is released, which, acting on the second input of the block 8 of the flip-flops, rewrites the states of the outputs of the 7 flip-flops. The outputs of the lock 8 trigger are the outputs of the device. A pulse 14, selected at the fourth output of the decoder 4, returns the counter 5 and the trigger unit 7 to the initial state. In this case, signals 21, 22 and 23 appear at the outputs of the device. Then the process repeats.

If in the incoming signal from the transmitter there are interference in the form of pulses, the duration of which is less than the duration of the short information pulse, located between the information pulses, then this interference does not affect the operation of the device, since at the specified pulse duration, the counter 3 does not count to a predetermined number, at which time a pulse is received at the first output of the decoder 4, and over the cutoff of the disturbance pulse, the counter 3 is converted to zero state; Thus, the impulse of the jam does not pass to the first input of the counter 5.

The device in FIG. 3 contains the element OR 24, in the receiver 1 element

OR 25, in generator 2, elements AI 26 and 27, resistors 28 and 29 and capacitors 30 and 31, B km-pulse distributor 6 element 32 and depp-tfrator 33, in the trigger unit 7 RS-triggers ZL-37, in the trigger unit 8)) —Ly 38–41 trigger. The device consists of four commands and is designed to control sports models and toys and contains eight chip microcircuits and four hanging elements. The decoder 33 of the distributor 6 pulses converts the binary code into the sum {H1-.1Y (0-7). In this case, the supply of a high level of voltage to the 8th entrance prohibits depp1frac1po, setting up all outputs (0-7) inisKiie

We offer -; oa the device - possesses povienenoy on; eco-resistance.

Formula i-i l about b and e and

The sigpap device is controllable, containing the receiver whose input is the input; ycTpoii, the output is connected to the first input of the first counter, the generator of gonoles, the outputs of the nepBvTro counter are sent with the corresponding input of the dehftrator, the second counter, the outputs of which are connected to the information distributor P1 inputs of the pulse distributor, the first trigger block The outputs of which are connected to the respective first inputs of the second block of flip-flops, the outputs of which are the outputs of the device, characterized in that. that, in order to increase the noise immunity of the device, the output of the pulse generator is connected to the second input of the first counter, the first output of the shifter is connected to the first input of the second counter, the second output is connected to the gate input of the pulse distributor, the outputs of which are connected to the corresponding first inputs of the first trigger block and the third output A decoder connects with the second input of the second block of triggers, a quarter of the output with the second inputs of the second counter and the first block of the triggers.

Claims (1)

A device for receiving control, containing the input of which is the input of the device, the output is connected to the first input of the first counter, a pulse generator, the outputs of the first counter are connected to the corresponding inputs of the decoder, the second counter, the outputs of which are connected to the information inputs of the pulse distributor, the first block of triggers, the outputs of which connected to the corresponding first inputs of the second block of triggers, the outputs of which are the outputs of the device, characterized in that, in order to improve noise immunity On the device side, the output of the pulse generator is connected to the second input of the first counter, the first output of the decoder is connected to the first input of the second counter, the second output is connected to the gate input of the pulse distributor, the outputs of which are connected to the corresponding first inputs of the first block of triggers, the third output of the decoder is connected to the second input the second block of triggers, the fourth output - with the second inputs of the second counter and the first block of triggers.