SU1524079A1 - Receiving device of remote measurement system - Google Patents

Abstract

The invention relates to radio engineering and can be used in receiving devices for telemetry, radio navigation and radio control. The purpose of the invention is to expand the functionality of the device. The device contains linear node 1, serial code to parallel code converter 2, code protection block 3, digital-to-analog converter 4, first 5.1 and second 5.2 keys, first 6.1 and second 6.2 elements OR, matching converter 7, first 8.1 and second 8.2 clock pullers, 9 clock pulse generator, control unit 10, first 11.1 and second 11.2 pulse shapers, scaling element 12, first 13.1 and second 13.2 indicators, analog-to-digital converter 14, digital indicator 15. The device allows the entire dynamic The second range of transmitted information separator into two sub-bands and, using the address group of the received signal, restore it in accordance with the measured value. 3 il.

Description

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The invention relates to radio engineering and can be used in receiving devices for telemetry, radio navigation and radio control.

The aim of the invention is to expand the functionality of the device.

FIG. 1 shows a functional diagram of the device; in fig. 2 - JQ functional diagram of the sync pulse extractor; in fig. 3 is a control block diagram.

The device contains a linear node 1, a converter 2 of a serial-to-parallel code, a code protection block 3, a digital-to-analog converter 4, the first 5.1 and second 5.2 keys, nepBuii 6.1 and second 6.2 elements, and through the first element OR 6.1 control unit 10 The pulse formation 11.1 expands the pulses by a time equal to (or more) the duration of the information group. The signal from the extended pulse generator from Clause 1 opens the key 5.1 and starts the first indicator 13.1, which informs about stationarity. consecutive code in paraplel

the code from which the codes arrive at the input of the code protection block 3, which checks the codes (for example, even and prohibits or sends the received informational signal group to its outgoing signals. The information code set is converted into a digital-analogue interface

you are OR matching converter 7,20 former 4 into electric current

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the first 8.1 and the second 8.2 sync pulse separators, 9 clock pulse generator, control unit 10, the first 11.1 and second 11.2 pulse drivers, the scaling element 12, 25 the first 13.1 and the second 13.2 indicators, analog-to-digital converter 14, digital indicator 15.

The clock pulse allocator 8.1 contains the shift register 16, the inverter 17, the oQ element is NOT-18. The clock pulse allocator 8.2 is constructed in the same way as

The control unit contains an element And 19, the first 20.1 and the second 20.2 pulse shapers, the delay element 21.

The device works as follows.

Line node 1 demodulates the radio pulses received from the communication channel, forms and restores the sequence of video code pulses, distorted by interference. The signal consists of two groups of pulses, next to 9 {x one after another: the synchrogroup (synchronization and address) and the information group (information of the transmitted signal). The syncgroup and information group pulses appear at code positions according to the law of transmitted information. When the stationary address code is received, the nerve selector 8.1 of the sync pulse is triggered, and when the non-stationary code is received, the second extractor of the 8.2 sync pulse is triggered. The allocated 55 synchroimpass of stationary components of the sluggish signal simultaneously starts the first driver 11.1 and 40

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or the voltage that is supplied to the cut key is an open key 5.1, the second element OR 6.2 to the matching converter 7. Various measuring devices can be connected to the latter.

The sync pulse of the non-extrinsic pressure signals, selected by the second selection of the 8.2 sync pulse, is triggered via the first element OR 6.1 control unit, the second pulse shaper 1, which includes the second indicator 13.2, signaling the signal unsteady on the received signal, and opens the second edge 5.2. At the same time, the output signal from the cyr analogue converter 4 through the open second key 5.2 sets ia the scaling element 12, where the signal is amplified K times (K is the transfer coefficient of the stationary components of the transmitter of the telemeter transmitter). In this case, the stationary non-stationary components of the signal are brought to the same scale. The scaled signal through the second element OR 6.2 is fed to the input of the matching converter 7.

Received signals through the analog digital converter 14 enters the digital indicator 15,

The transferred value, for example, the amplitude of vibrations of an object, changes in a large dynamic range. For example, non-stationary components caused by shock loads exceed the amplitude of oscillations of stationary components by more than 20 times. Therefore, it fluctuates

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pulse and through the first element OR 6.1 control unit 10. The pulse shaper 11.1 spreads the pulses by a time equal to (or longer) the duration of the information signal group. Expanded impulse of the former P.1 opens the key 5.1 and starts the first indicator 13.1, which informs about stationarity. The control unit 10 starts the converter 2 of the serial code into the interlayer

the code from which the codes arrive at the input of the code protection unit 3, which checks the codes (for example, evenness) and prohibits or sends to its output the received information signal group. Information code set; and converted to digital-to-analog converter 4 into electric current

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or the voltage that is supplied through the public key 5.1, the second element OR 6.2 to the matching converter 7. Various measuring devices can be connected to the latter.

The sync pulse of the non-intrinsic component selected by the second sync pulse selector 8.2 triggers through the first element OR 6.1 control unit 10, the second pulse generator 11.2, which turns on the second indicator 13.2, signaling that the received signal is unsteady, and opens the second key 5.2. At the same time, the output signal from the digital analogue converter 4 through the open second key 5.2 enters the ia scaling element 12, where the signal is amplified by K (K is the transmission coefficient of the stationary components of the transmitter of the telemeter transmitter). In this case, the stationary and non-stationary components of the signal are brought to the same scale. The scaled signal through the second element OR 6.2 is fed to the input of the matching converter 7.

Received signals through analog-to-digital converter 14 is fed to a digital indicator 15,

The transmitted value, such as the amplitude of the vibrations of the object, varies in a large dynamic range. So, for example, non-stationary components caused by shock loads exceed the amplitude of oscillations of stationary components by more than 20 times. Therefore, the oscillation is 1

The measured process varies over a wide dynamic range. The device allows the entire dynamic range of transmitted information to be divided into two sub-bands and, using the address group of the received signal, restore it in accordance with the measured value.

Claims (1)

Invention Formula A receiver of telemetry systems containing a linear node whose input is an input of a device, and the output is connected to the first input of a serial code to parallel code converter, the output of which is connected to the first input of a code protection block whose output is connected to an analog-to-digital converter, sync pulse selector, clock generator, the output of which is connected to the first input of the control unit, the first output of which is connected to the second input, convert the serial code to parallel code, the second output of the control unit is connected to the second input of the code protection unit, the matching converter whose output is the output of the device, and the input is combined with the input of the anapho-digital converter, the output of which is connected to the digital indicator input, characterized in that /five ABOUT 5 o 0 five five neither the functional capabilities of the device, the second sync pulse first and second pulse selectors, indicators, AND elements, OR elements, the scaling element, the output of the linear node are connected to the combined first inputs of the first and second sync pulse pullers, the output of the first sync pulse pulse is connected to it. the first input of the first element OR and through the first pulse shaper with the input of the first indicator and the first input of the first element AND whose output is connected with the first input of the second element OR, the output of the second sync pulse selector is connected to the second input of the first OR element and through the second pulse shaper to the input of the second indicator and to the first input of the second element AND, the output of which is scaled through the second input of the second element OR, the output of which is connected to the input of the matching converter, the second inputs of the first and second separators of clock pulses are combined and connected to the output of the clock generator, the output of the first IL element connected to the second input of the control unit, an output tsifroanalogo- Vågå transducer connected to the combined second inputs of the first and second elements I.