SU1765840A1 - Device for transmitting and receiving remote control signals - Google Patents

Abstract

The invention relates to automation and telemechanics and can be used for remote control of moving objects within sight. The purpose of the invention is to increase the functional reliability of the device. The transmitter generates a sequence of command pulses modulated in the infrared frequency range, separated by clock pulses, the duration of which is several times longer than the duration of the command pulses. The selector highlights the received sync pulses and resets the counter. If the transmitter’s direct radiation flux does not reach the receiver, the meter will not be reset and the alarm will sound. If within 3-4 seconds the operator does not restore the communication channel, the signal from the output of the selector will ensure that the control object is turned off, 1 sludge.

Description

WITH

WITH

The invention relates to the field of automation and telemechanics and can be used for remote control of moving objects within sight.

The purpose of the invention is to increase the functional reliability of the device.

The drawing shows the functional diagram of the device

The device contains a control command transmitter 1, a control command receiver 2, a clock selector 3, a pulse generator 4, a pulse distributor 5, a key block 6, a register 7, an actuator block 8, a counter 9, a pulse width selector 10, a signaling block 11, a differentiator 12, the integrating element 13, the elements OR 14 and 15, the trigger 16, the key 17.

The differentiating element consists of a capacitor 18 and a resistor 19.

The integrating element consists of a capacitor 20 and a resistor 21.

The device works as follows.

Transmitter 1 generates modulated command pulse sequences modulated in the infrared frequency range, separated by clock pulses, the duration of which is several times longer than the duration of command pulses.

The first clock demodulated by the receiver 2 and selected by the selector 3 sets the distributor to 5 pulses, the counter 9, and also stops the generator of 4 pulses. At the moment of termination of the clock pulse, the generator 4 starts to work.

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pulses and distributor 5 pulses. Thus, cyclical synchronization of the pulse distributors of the transmitting and receiving sides of the device is carried out. During the operation of the distributor 5, the pulse from its last output will write down the unit to counter 9, but the sync pulse that came after it will reset it to the zero state, therefore, to the control input of the 6 key block, the second input of the OR 14 element, the selector 10 inputs a zero signal will be received from the output of the counter 9. The keys of the block 6 remain in the on state, permitting the passage of pulses from the output of the distributor 5 to the synchronization inputs of the corresponding triggers of the register 7, to the integrated information inputs of which are fed after The impulses from the output of the receiver 2 are written. Recording of commands occurs in those triggers of register 7, the sync and informational inputs of which receive pulses from the outputs of the distributor 5 and receiver 2, respectively.

Logic unit signals from the outputs of the triggers to which the command was written trigger the corresponding relays of the block 8 actuators, the contacts of which include the corresponding actuators. The signal from one of the outputs of block 6 of keys goes through differentiating element 12, consisting of capacitor 18 and resistor 19, to input of trigger 16 and input of element OR 14, Trigger 16 is set to state 1, and a single signal from the output of element OR 14 acts on the control input of the switch 17. The key is triggered and discharges the capacitor 20. Upon termination of the pulse at the output of the differentiating element and opening of the key 17, the second capacitor 20 begins to charge along the circuit: direct output of the trigger 16, resistor 21, common wire . The constant time of the charging circuit is chosen in such a way that in the interval between pulses from the output of block 6 of keys, capacitor 20 does not have time to charge before the trigger voltage of trigger 16, and it does not change its state.

If the radiation flux of transmitter 1 does not reach receiver 1, and the reflected signal is weak or absent, i.e. the communication channel disappears, the counter 9 will not reset, and in the next cycle of the distributor 5 the unit will record at the output of counter 9. This will turn on the unit 11 sound alarm, lock the key

Claims (1)

17 and the opening of the keys of block 6. This ensures that the information in register 7 is memorized and trigger 16 is held in one state. If during the time selector 10 (3-4 seconds) the operator does not restore the communication channel, the signal from the output of the selector 10 through element 15 sets all the triggers of register 7 to zero, ensures that the control object is turned off, if (3-4) seconds , the communication channel will be restored, the first received sync pulse will reset the counter 9 to zero, which will cause the audible alarm unit 11 to turn off, unlock the keys of unit 6 and close the key 17 and allow further control of the control object. Apparatus of the Invention A device for transmitting and receiving remote control signals, comprising a control command transmitter, a control command receiver whose output is connected to the register information input and connected through the clock selector to the counter zero input, pulse distributor clock inputs and the pulse generator whose output is connected to the clock input of the pulse distributor, the outputs of which are connected via a key block with the corresponding register synchronization inputs Which are connected to the inputs of the actuator unit, the last of the outputs of the pulse distributor is connected to the counting input of the counter, the output of which is connected to the inputs of the alarm unit and the pulse duration selector, to the control input of the key block, in order to increase functional reliability, The first and second elements OR, the trigger, the differentiating element and the integrating element, the key, the first of the outputs of the key block are entered into the device through the differentiating element connected to the first in one of the first element OR and with the installation input of the trigger unit, the direct output of which is connected via an integrating element to the information input of the key and to the installation input of the zero trigger, the inverse output of which is connected to the first input of the second element OR, the output of which is connected to the input of the installation of the zero register, the output of the counter is connected to the second input of the first OR element, the output of which is connected to the control input of the key, the output of which is connected to the zero potential bus, the output of the pulse width selector is connected to the second input of the second element OR.