SU1448352A1 - Apparatus for capturing telemetry data - Google Patents

Abstract

The invention relates to telemetry and can be used to collect information from geographically dispersed controlled sites, the energy resource of which is limited. The purpose of the invention is to increase the reliability of the device. The device contains at each KP sensor 1 telemetry ADC 2, element 7, key 8, current limiter 9, linear unit 10, channel switch 11, pulse distributor 12, trigger 13, timer 14, communication line 15, at the control point power supply 16 , generator 17 clock pulses, driver 18 clock pulses, pulse distributor 19, switch 20 analog signals, A / D converter 21, decoder 22, temperature sensor 23, current limiter 24. 2 Il. i cl

Description

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The invention relates to telemetry and can be used to collect information from dispersed control objects, in particular, to collect data during long-term geocryological studies.

 The aim of the invention is to improve the reliability of the device "

Figure 1 shows the functional diagram of the device; FIG. 2 shows the timing diagrams; the operation of the elements 12 14 according to the clock pulses of the driver 18 is shown;

The device contains on each KP sensor 1 t e 3 measures ci scientific research institute, analog-to-digital converter (ADC) 2. converter 3 of parallel code to serial, which consists of pulse distributor 4, elements AND 5, element 1-ШИ 6, element And 7, key 8, current limiter 9. linear block 10, - channel .key 11,

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My information code depending on temperature. At the controlled point, it arrives at distribution 4 and, from its first output, at the input of the corresponding element AND 5. Simultaneously with the arrival of this impulse, the corresponding output of the distributor 12 receives a signal that sets trigger 13 to state 1, which causes opening the key 11, which disconnects the units 10-14 from the communication line. This is necessary so that the total resistance of these units does not affect the resistance of the communication line RO. The signal 1 from the output of the flip-flop 13 is also enabling to transfer information about the weight of the readable bit from the output of the transducer 2 through the AND 7 V element of the control, where the output of the ADC is 2 V. the surveyed bit is recorded O, n the output of the corresponding element AND

the distributor 12 pulses, the trigger 25 and the elements OR 6, And 7 will be

My information code depending on temperature. At the controlled point, it goes to distribution 4 and from its first output to the input of the corresponding element AND 5. Simultaneously with the arrival of this pulse, the corresponding output of the distributor 12 appears at the corresponding output, setting trigger 13 to state 1, which causes the opening of the key 11, which disconnects the units 10-14 from the communication line. This is necessary so that the total resistance of these units does not affect the resistance of the communication line RO. The signal 1 from the output of the flip-flop 13 is also enabling to transmit information about the weight of the readable bit from the output of the transducer 2 through the element 7, B in those controls where the output of the ADC is 2 c. the interrogated bit is recorded O, at the output of the corresponding element I 5,

13, timer 14, two-wire communication line 15, at the control room of the SPU} power supply 16, generator 17 clock pulses, driver 18 clock pulses, distributor 19 Im1 pulse, switch 20 analog signals, analog-to-digital converter (LS) 21. Deko der 22, temterature sensor 23 and current limiter 24,

The device works as follows

With PU at the same time, all gearboxes receive clock pulses from generator 17 from the output of the horner 18. First pulse from the control unit, arriving at. the communication line to each kn, passes through it sequentially through the key 11 which is initially in a closed position, the linear block 10, then to the parallel code to serial to converter 3, start the analog-to-digital converter 2, after which the conversion analog- {signal from the sensor to the parapel binary code. The first pulse of the control panel switches to the ADC 2 signal V of the temperature sensor 23. The second pulse from the generator 23 triggers the conversion of the signal V and the received code buffer decoder 22 and, based on its correction occurs dec-odirue0

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the potential prohibiting the lock of key 8, therefore, the key will be open, and a current limiter 9 will not be connected to the communication line 15. The third pulse from the driver 18 causes the control panel V to switch the signal V to the ADC 21 proportional to the resistance of the communication line R and this clock pulse is not received, since key 8 is open. By the fourth clock pulse

with the driver 18 signal V p on PU

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converted to a digital code, at ON-SECH at the output of the A / D converter 21 at the end of the conversion instead of the previous (address) code proportional to temperature. The decoder 22 converts this code to the original combination of zeros and ones read from all control points, while eliminating a possible error due to a change in the temperature of the soil in which the communication line is located. Between the fourth and fifth as-. This pulse produces a pulse at the output of timer 14, which translates the trigger 13 into the state O, which leads to the closure of the key 11.

On the fifth clock pulse, the current limit switches 9 are re-switched in all gearboxes depending on the values of the next readable bits AID 2, the opening of the key 11, the setting of the trigger 13 in co5

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This is 1, turning on the timer. On the PU, the V signal is switched over this pulse (J to the input of the ADC 21. However, V c has already been switched to the ADC by the third clock pulse from the driver 18 — the switching is confirmed.

The next two pulses from the former 18 are used to decode the information read from the PU. After this, the signal from timer 14 carries the next ea 4J key of i1 in the control unit, and the next clock pulse from the control panel produces a new commutation of the keys 8 in the control unit. Further, the process of reading information for the remaining bits of the ADC 2 is similar to that described.

Claims (1)

Invention Formula A device for collecting telemetry data, containing at each controlled point (CP) a telemetry sensor, the output of which is connected to the first input of an analog-to-digital converter, a parallel-to-serial code converter, consists of a group of elements AND, an element OR, and a pulse distributor, the outputs of elements AND the groups are connected to the corresponding inputs of the OR element, the output of the anapogapha converter is connected to the second inputs of the elements AND the parallel code to serial converter key, the first input of which is connected to the first wire of the J.c connection, the output of the key through the current limiter is connected to the second wire of the communication line, the linear unit, the output of which is connected to the input of the pulse distributor of the variable code converter to the serial one, the output of which is connected to the second to the input of the analog-digital converter, on the control panel. The first wire of the communication line is connected to the positive terminal of the power supply. 0 five 0 0 five five The second wire of the communication line is connected via a current limiter to the negative terminal of the power source, a temperature sensor whose output is connected to the first input of the analog signal switch, the second input of which is connected to the second wire of the communication line, the output of the analog signal switch is connected to the first analog-digital input converter, pulse distributor, the first input of which is connected to the third input of the analog signal switch, the second output - to the second input of the analog-digital converter, output which and the third output of the pulse distributor connects respectively to the first and second inputs of the decoder, the outputs of which are outputs of the device, a clock pulse generator, the output of which is connected to the pulse distributor through the clock pulse generator, in order to increase the reliability of the device , a channel key, a pulse distributor, a trigger, a timer and an AND element whose output is connected to the second key input, the first channel input are entered into it at each controlled point The key is connected to the second wire of the communication line, the output of the channel key is connected to the input of the linear unit, the output of which is connected to the input of the pulse distributor, the output of which is connected to the first input of the trigger. The second output is connected to the output of the timer, the output of the trigger is connected to the second. the channel key input, the timer input and the first input of the element I, the second input of which is connected to the output of the element OR the parallel code-to-serial code converter, the outputs of the pulse distributor of which are connected to the second inputs of the corresponding elements AND the parallel code to serial converter. 0 K / tH} 4 radbmk-chickpeas (1) (z) G; Fie.2 u (YU