RU1793453C - Device for remote control - Google Patents

Abstract

The invention relates to the field of remote control of both wireless and wired processes. The purpose of the invention is to simplify the device. The device comprises a pulse generator, a trigger, a counter, control keys, an adder, a delay element, decoders, And elements on the transmitting side, an interrogation pulse selector, a trigger, a counter, an adder, a delay element, a decoder, and I. elements, 2 ill.

Description

The invention relates to the field of remote control of both wireless (flying, floating and moving objects on the surface), and wired technological processes.

A telecontrol device using a step finder is known, where command signals are supplied by a pre-programmed movement of the contacts of the step finder in accordance with the supply of a voltage to it, for example, by pressing a button. Since the device involves finding the desired actuator circuit and connecting it to the current source, then during the search, in order to avoid connecting the current source to any other actuator circuit, a time relay is used, which leads to low speed, and the device has practical use only in wired performance.

A device for remote control with pulse-frequency division multiplexing in a wireless or wired

control options. The essence of the device consists in generating in the device transmitter low-frequency interrogation pulses and bursts of pulses in the middle band of the sound frequency range, in setting the corresponding elements of the transmitter circuit to a single or, respectively, to the zero state, and as a result, periodic appearance of the bursts at the transmitter output in the initial state of bursts of 15 pulses, causing the command code equal to the number of pulses 15-N, where N is the number of the pressed button of the button field, in the aggravation (decrease) of the fronts of the pulses of the packet received at the device’s receiver, in setting the corresponding elements of the receiver circuit to a single or zero state, in the formation of reset pulses and, accordingly, counting pulses, which determine the state of the counter, determining in the pauses between the packets the number of pulses in the packet and the passage of the command signal to executive device. Since the device generates interrogation pulses and bursts of pulses

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sensors have different repetition periods, this causes instability in time as much as possible of the burst pulse duration, and when the pressing time coincides, interference occurs that determine the formation of the wrong number in the counter, which leads to the issuance of a false command, Thus, the device is likely to have a practical malfunction codes leading to real failures, i.e., inoperability; making it impossible to use in facilities where failure can lead to disaster, for example in aircraft.

A telecontrol device is known for transmitting commands in wireless or wired control versions, adopted as a prototype. The essence of the device lies in the fact that marker pulses are formed in the transmitter, to which the signal pulses of the commands are connected, followed by the transmission of the cumulative signal to the ether line, the reception of the aggregate signal, the selection of marker pulses and their selection by duration, with which form time intervals adequate in duration to the time intervals of the pulse signals of the commands in the transmitter, & comparing these time intervals with the time intervals of the received pulse signals of the commands, in an additional comparison of the mentioned signals after several repetition periods, the results of which are the passage of the signal pulses of the command to the input of the actuator. :

6 of the known telecontrol device, in the event of a marker signal error, the system does not work at all, since the synchronization is disrupted in the receiver, which requires restoration of the power supply with its subsequent switching on. If the system works in the presence of short-duration interference in the command signal, then if the duration of the interference is longer. During the comparison periods, the system is not operational, i.e., the signal accumulation element does not work to increase the working capacity. In addition, there is no automatic repeat of commands in the event of any error, and the use of delay lines in the receiver of the device determines the inadequacy of the signals at the output of the delay lines to the signals at the output of the transmitter of the device. In this case, the device diagram is unnecessarily complicated. Thus, the known device is not reliable enough and very complex.

 The invention is a simplification of the device,

The essence of the invention lies in the recirculation of the pulse of the polling generator

in the transmitter to the pulse train, determined by the time delay equivalent to the sum of the transient delays in the elements and the signal transit time in the circuit of the transmitter circuit, followed by linking the resulting pulse train to the polling pulse and transmitting the combined signal to the air on a single-wire communication line , in receiving e the total signal, separating the polling pulse from the packet

pulses, recirculation of a single polling pulse into a pulse train (with parameters adequate to those obtained in the transmitter) and comparing the separated pulse train with the received pulse train,

according to the results of which the command signals are transmitted (determined by combinations of polling pulses and received pulse packets) to the input of the actuator, and in repetition

commands with the frequency of the interrogation pulse generator in the event of any error (interference).

Distinctive features of the remote control device from the prototype are

the presence on the transmitting side of the second adder, delay element, counter, decoder and AND elements with corresponding connections, and on the receiving side of the trigger, adder, delay element,

counter and decoder with corresponding LINKS. : ............

In FIG. 1 is a functional diagram of a transmitting side of a device; in FIG. 2 is a functional diagram of its receiving side.

The device comprises, on the transmitting side, a pulse generator 1, a trigger 2, a counter 3, control keys 4, a first adder 5, a delay element 6, a decoder

7, elements And 8 and a second decoder 9, on the receiving side, a polling pulse selector 10, a trigger 11, a counter 12, an adder 13, a delay element 14, a decoder 15 and elements And 16.

The device operates as follows.::. .....

The pulse generated by the pulse generator 1 on the transmitting side of the device throws the trigger 2 of the reference into the output position of the resolving potential to the adder 5, while this pulse starts the recirculation circuit, which is a series-connected adder 5 and a delay element 6. The recirculated pulses from the output of the delay element b go to the counting input of the counter 3, the maximum number of recirculated pulses depends on the capacity of which. The pulses from the output of counter 3 are sent to the decoder 7, which converts the numerical sequence of pulses (number-pulse code) of the counter 3 into a potential code, that is, into a single sequence of potentials in time at the output of the decoder 7. From the outputs of the decoder 7, the pulses arrive respectively at one potential inputs of AND elements 8, at other potential inputs of which a potential occurs correspondingly when the corresponding control key 4 is pressed. After the formation of the last potential, the trailing edge of this pulse (the last output of the decoder 7) sets the counter 3 to its initial position and the trigger trigger 2 removes the resolving potential from the adder 5. The adder 5 sums the pulses from the outputs of the elements And 8 and the pulses from the output of the pulse generator 1, Parameters the generated pulse train (the number of pulses, the repetition period) is determined by both the pulse generator 1 and the delay element 6, the delay value of which should be equal to the transition time according to Kotelnikov’s theory x processes plus the transit time of the signal along the communication circuit, i.e. in the elements of the devices (which eliminates the instability in time). However, the specific number of pulses in the packet is set by pressing the corresponding control keys 4, which, together with the And 8 elements, determine the number of pulses at the output of the adder, the pulse sequence starting with the pulse of the pulse generator 1 and then sequentially located in time. The pulse of the packet, the number of which depends on the number (numeric value) of the pressed control key 4.

At the receiving side of the device, the first to the polling pulse selector 10 and to the trigger 11 from the set of pulses is a polling pulse (triggering pulse) and then a series of pulses in succession in accordance with the pressed control key 4. The polling pulse sets the trigger 11 to the state of issuing the enabling potential to the adder 13 at one input (i.e., it opens the circuit for receiving a signal) and the inhibiting potential to the polling pulse selector 10, which causes the output to the output of the last polling pulse to another the input of the adder 13. The burst of pulses falls only on the inputs of elements And 16. The pulse

Interrogation 0 triggers a recirculation circuit, which is a series-connected adder 13 and delay element 14. The recirculated pulses from the output of the delay element 14 are fed to

5 counting input of the counter 12, on the capacity of which the maximum number of recirculated pulses depends. From the output of the counter 12, the burst of pulses arrives at the input of the decoder 15, where the number sequence (number-pulse code) of the burst is converted into a potential code, i.e., into a single sequence of potentials in time at the outputs of the decoder 15, which are supplied by the corresponding potential inputs5 elements And 16, to other potential inputs of which pulses of the packet are received directly from the input of the receiving side. After the formation of the last potential in the decoder 15, the trailing edge of this pulse sets the counter 12 to its initial state, the trigger 11 removes the enable potential from the adder 13 and the inhibit potential from the Yuim5 selector of the polling pulse, and the receiving side is ready to receive a new set of pulses at the head with a polling pulse (which the receiver opens to receive a command signal), i.e., a pulse code,

0 corresponding to the new team. Thus, the input of the receiving side is protected from impulse noise with a duration shorter than the repetition duration of the polling pulse.

5 interference with a duration longer than the repetition of the polling pulse, as a result of updating (repeating) the command with the frequency of generation of the polling pulse (for example, with a frequency of 10.00 Hz), the interference does not interfere with the command signal, i.e., the receiving side has high noise immunity.

Claims (1)

SUMMARY OF THE INVENTION A telecontrol device comprising, on a transmitting side, a first adder, the output of which is an input to the communication line of the device, a pulse generator, trigger and control keys, on the receiving side, a polling pulse selector, the input of which is the output of the communication line of the device, the elements And, the output of each of which is the corresponding output of the receiving side, is included that, in order to simplify, a second adder, a delay element, a counter, a decoder and AND elements are introduced on the transmitting side, the output of the pulse generator is connected to the input of the first adder, to the first input of the second adder and to the input Setting the trigger, the output of the latter is connected to the input permission To change the second adder, the output of which through the delay element is connected to its second input and to the counter input of the counter, the outputs of the latter are connected to the inputs of the decoder, each output of which is connected to the first input of the corresponding AND element, the output of which is connected to the corresponding input of the group of the first adder, the first conclusions control keys are combined and connected to the terminal of zero potential, the second output of each control key is connected to the second the input of the corresponding element AND, the last output of the decoder is connected to the inputs Reset counter and trigger, on the receiving side, the trigger, adder, delay element, counter and decoder, the output of the polling pulse selector is connected to the first input of the adder, the output of which through the delay element is connected to its second input and to the counter counter input, the outputs of the latter are connected to the inputs of the decoder, each output of which is connected to the first input of the corresponding AND element, the input of the polling pulse selector and the second inputs of Tov and are combined and connected to the input of latch installation, the forward and inverted outputs of which are connected to the enable input of the adder and to an input prohibition interrogation pulse selector, respectively, the last output of the decoder is connected to the reset inputs of the counter and the flip-flop. Figure 1 Figure 2