RU2121221C1 - Coding device for checking remote-control systems at gravity humps - Google Patents

Abstract

FIELD: automatic and remote control facilities. SUBSTANCE: device has generator, first and second counters, first and second coincidence circuits, data input unit, flip-flop unit, display, first and second multiplexers, RAM control circuit, random-access memory, pulse coding unit, serial train shaper, and display unit. Data input unit has keyboard with A and B matrices controlled by 16 keys (8 keys for matrix A and 8 ones for matrix B). In this way, 34 pulses can be coded. EFFECT: improved reliability of device due to simplified logic and data input unit circuits. 1 dwg

Description

 The invention relates to automation devices and telemechanics and can be used to control and configure various telemechanics systems on sorting slides.

 Known code generator, which is used to configure the telemetry system "Lisna". It contains a generator, counter, first and second decoders, an information input unit, a coding unit, a sequential pulse train and a matching circuit (see "Lisna Telemechanics System for Electrified Railways", edited by N.D.Sukhoprudsky, Moscow, Transport, 1979., S. 193-196, Fig. 95).

 The disadvantage of this device is the bulky coding panel, consisting of 128 contact sockets (64 pulses and pauses), which increase the dimensions of the device. In this case, 128 wires are required to connect the panel with the logic circuit and 128 pins for switching.

 Of the known devices, the closest is an encoder for checking telemechanics systems on sorting hills, containing a generator whose output is connected to the counting input of the first counter, an information input unit (coordinate keyboard in the prototype), a trigger block, the first and second decoders, the first matching circuit, RAM control circuit, the output of which is connected to the control input of random access memory, while the reset input of the trigger block is connected to the input of the RAM control circuit (see USSR AS N 118 7278, H 03 M 11/00, 1983).

 The disadvantage of this device is the large number of buttons on the coordinate keyboard, an expensive device and lowering the reliability of its operation.

 The objective of the invention is to increase the reliability of the device by simplifying its logic and information input unit.

 The task is implemented as follows.

 To an encoding device for checking telemechanical systems on sorting hills, containing a generator whose output is connected to the counting input of the first counter, an information input unit, a trigger block, first and second decoders, a first matching circuit, a RAM control circuit, the output of which is connected to the control input of the operational storage device, while the reset input of the trigger block is connected to the output of the RAM control circuit, an indicator, the first and second multiplexers, the second coincidence circuit, the second counter, the ind a display, a pulse coding unit, a sequential series driver, while the first output of the information input unit is connected to the installation input of the trigger unit, the output of which is connected to the indicator input and the information inputs of the first multiplexer, the second output of the information input unit is connected to the information inputs of the second multiplexer, the outputs of the first and the second multiplexers are connected to the first and second inputs of the second match circuit, the output of which is connected to the reset input of the trigger block and to the input of the control circuit I have RAM, the output of random access memory is connected to the control input of the pulse coding unit, the output of which is connected to the second input of the sequential series driver and the control input of the display unit, the output of the second counter is connected to the address inputs of the first and second multiplexers, to the address inputs of RAM, to the inputs of the first and the second decoders, the outputs of which are connected respectively to the first and second inputs of the first matching circuit, the output of which is connected to the reset inputs of the second counter and block code pulses, the counting input of which is connected to the output of the first counter and the first input of the shaper of a sequential series, the output of which is connected to the counting inputs of the display unit and the second counter and is the output of the device.

 A comparative analysis of the claimed invention with the closest analogue revealed the differences indicated in the characterizing part of the claims, which indicates that the invention satisfies the condition of patentability "novelty".

 A patent search in the art did not reveal technical solutions having features matching the distinguishing features of the invention and providing the specified technical result, which indicates the satisfaction of the invention patentability condition "inventive step".

 All circuits and blocks in the device are made on typical elements of the 561 series.

 The first counter 2 is a frequency divider.

 The information input unit 8 is a keyboard containing matrices A and B, and they are controlled by 16 buttons (8 buttons - matrix A and 8 buttons - matrix B). In this way, 64 pulses can be encoded. The trigger block 9 consists of RS-triggers, united by the inputs of R.

 The RAM control circuit 13 contains single vibrators, coincidence circuits, and operation mode switches and allows for the recording of encoded pulses in the RAM 14, the reset of individual pulses, and the general reset of the information located in the RAM.

 Block 15 coding of pulses is a time relay made on a binary counter with feedback and makes it possible to record the duration of long and extra-long pulses.

 Shaper 16 serial series contains an amplifier, a matching circuit, and optocoupler isolation and allows you to generate a sequential series of pulses entering the communication line.

 The drawing shows a functional diagram of the device.

 The encoder for checking telemechanics systems on sorting hills contains a generator 1, first 2 and second 3 counters, first 4 and second 5 decoders, first 6 and second 7 matching schemes, information block 8, trigger block 9, indicator 10, first 11 and second 12 multiplexers, a RAM control circuit 13, random access memory (RAM) 14, a pulse coding unit 15, a series shaper 16 and an indication unit 17. In this case, the output of the generator 1 is connected to the counting input of the first counter 2, the output of which is connected to the counting mu input of the pulse coding block 15 and the first input of the sequential series 16 shaper, the second input of which is connected to the output of the pulse coding block 15 and the control input of the indicating block 17, the counting input of which is connected to the counting input of the second counter 3 and to the output of the serial series 16 shaper, output the second counter 3 is connected to the address inputs of the first 11 and second 12 multiplexers, with the inputs of the first 4 and second 5 decoders and with the address outputs of RAM 14, the output of which is connected to the control input of the unit to pulse coding 15, the reset input of which is connected to the reset input of the second counter 3 and with the output of the first matching circuit 6, the outputs of the first 4 and second 5 decoders are connected to the first and second inputs respectively, the first output of the information input unit 8 is connected to the installation input of the trigger block 9, the output of which is connected to the input of the indicator 10 and the information inputs of the first multiplexer 11, the second output of the information input unit 8 is connected to the information inputs of the second multiplexer 12, the outputs of the first 11 and second 12 ultipleksorov respectively connected to first and second inputs of a second coincidence circuit 7 whose output is connected to the reset input of flip-flops unit 9 and to the input of the RAM 13 of the control circuit.

 The coding device for checking telemechanics systems on sorting slides works as follows.

 In the initial state, the pulses from the output of the generator 1 are supplied through the first counter 2 to the counting input of the pulse coding unit 15 and to the first input of the shaper 16 of a sequential series. Short pulses from the output of the shaper 16 enter the communication line, as well as to the counting inputs of the display unit 17 and the second counter 3. The pulses from the output of the second counter 3 arrive in binary code to the address inputs of the first and second multiplexers 11 and 12, to the inputs of the decoders 4 and 5 and to the address input of RAM 14. In the absence of signals from the output of information input block 8, the triggers of block 9 are in the zero state and zero pulses are fed to the information inputs of multiplexers 11 and 12 as the codes on the other inputs of multiplexers 11 and 1 change 2.

 At the last pulse, determined by the decoders 4 and 5, the first matching circuit 6 opens and the pulse from its output resets the second counter 3 to the zero state. At the same time, the pulse coding unit 15 starts up and the number “0” corresponding to the synchronizing ultra-long pulse of the LED is lit in the display unit 17. In this case, the shaper 16 of the serial series is blocked at the second input and the LED goes into the communication line.

 After the end of the LED, the pulse coding block 15 is blocked at the counting input, the resolving potential from its output goes to the second input of the shaper 16 of the serial series and a new series of short pulses enters the communication line.

 When one of the buttons of the matrix A is pressed in the information input block 8, one of the triggers in block 9 is triggered, the indicator 10 lights up and the positive potential goes to the corresponding information input of the pen multiplexer 11. When one of the buttons of the matrix B is pressed in the information input block 8, the positive potential comes in to the corresponding information input of the second multiplexer 12. At the same time, at a certain step of the second counter 3, the second matching circuit 7 opens and the enable signal from its output is fed to the input of the control circuit 13 RAM RAM. The triggers of block 9 are returned to their original state and the indicator goes out 10. Simultaneously with the output of the RAM control circuit 13, the encoded pulse number is written to RAM 14, which starts the pulse encoding block 15 every time the address from the output of the second counter is set on the code inputs of RAM 14 3. At the same time, the digit corresponding to the encoded pulse number lights up in the indication block 17, and a long pulse arrives in the communication line, the duration of which is determined in the pulse coding block 15. To reset the information, the switch in the RAM control circuit 13 becomes the "reset" position and then the pulse coding is performed as described above.

Claims (1)

 An encoding device for checking telemechanical systems on sorting hills, containing a generator whose output is connected to the counting input of the first counter, an information input unit, a trigger block, first and second decoders, a first matching circuit, a RAM control circuit, the output of which is connected to the control input of random access memory devices, wherein the reset input of the trigger block is connected to the input of the RAM control circuit, characterized in that an indicator, the first and second multiplexers, the second match circuit are inserted into it , a second counter, an indication unit, a pulse coding unit, a sequential series shaper, the first output of the information input unit being connected to the installation input of the trigger unit, the output of which is connected to the indicator input and information inputs of the first multiplexer, the second output of the information input unit is connected to information inputs the second multiplexer, the outputs of the first and second multiplexers are connected to the first and second inputs of the second match circuit, the output of which is connected to the reset input of the trigger unit while the output of random access memory is connected to the control input of the pulse coding unit, the output of which is connected to the second input of the sequential series driver and the control input of the display unit, the output of the second counter is connected to the address inputs of the first and second multiplexers, to the address inputs of the random access memory, and to the inputs of the first and second decoders, the outputs of which are connected respectively to the first and second inputs of the first matching circuit, the output of which is connected to odes resetting the second counter and the block encoding pulses to the counting input of which is connected to the output of the first counter and the first input of a consecutive series, the output of which is connected to the count input of the display unit and the second counter is the output of the apparatus.