SU1091208A1 - System for transmitting telemetering information - Google Patents

Abstract

I. SYSTEM FOR TRANSMITTING TELEMETRICAL INFORMATION, containing transmitters on the transmitter side, the outputs of which are connected to the ripper inputs of the switch, the timing device, the first output of which is connected to the second input switch 4, the transmitter, the output of which is connected to the input of the communication channel, on the receiving side - a receiver, the input of which is connected to the output of the communication channel, the first output of the receiver is connected to the generator input, the first output of the generator is connected to the input of the pulse distributor, which, in order to jump reliably transmitting information, on the transmitting side, a pulse distributor, an analog-to-digital converter, keys, WL elements and a sealing block are entered into it, the switch output is connected to the analog-digital converter input, the analog digital converter outputs and the pulse distributor are connected to the first and second inputs of the corresponding keys, the outputs of the keys are connected to the interface of the inputs of the OR elements, the outputs of the OR elements and the second output of the chroniser are connected respectively to the perches and the second inputs of the block The output of which is connected to the input of the transmitter, the third output of the chronizer is connected to the input of the pulse distributor, a pulse former, adders, a matrix switch, a frequency divider, a decompressor and a digital-to-analog converter are entered on the receiver side, the second and third outputs of the generator are connected to the pulse generator and the frequency divider, the second output of the receiver ka and the outputs of the pulse former are connected to the first and second inputs of the adders, respectively; Ports and pulse distributor: respectively with the first and second inputs of the matrix switch, the AMSO moves of which and (the course of the frequency divider is connected respectively to the primary and the & block of the ramp unit, the outputs of which are connected 00 with the corresponding inputs m c4fo-a of the analog converter, the output of which is connected to the outputs of the system ". 2. System pop.1, I distinguish that the compaction block contains adders, pulse formers and the majority element, the outputs of the pulse formers are connected to the inputs of the corresponding adders, the outputs of the adders are connected to the corresponding inputs of the majority element,

Description

The other inputs of the adder, the inputs of the impulse drivers and the output of the majority element are connected respectively to the first and second inputs and to

the output of the compaction unit

3. The system in accordance with claim 1, 1, which means that the block for the resolution of the circuit contains counters and r-hog elements, the outputs of the counters are connected to the first inputs of the corresponding threshold elements, the first inputs. the counters and the outputs of the threshold elements are connected respectively to the first inputs and to the outputs of the decompressor; the second inputs of the counters and threshold elements are combined and connected to the second input of the decompressor.

  The invention relates to radio engineering and communication, in particular to telemetry, and can be used in multi-channel information transmission systems and in communication networks. A known system for transmitting telemetry information comprising on the transmitter side of the sensor, frequency subcarrier generators, carrier frequency generator, modulators, filters, adder and transmitter, and Hti receiver side — receivers, demodulators, filters, and registering1H1-1I block G The closest in technical sense to the present is a system for transmitting Telbmetric information containing: on the transmitting side a chronizer, ne: the left and second outputs of which are connected respectively to the first and through the distributor pulses with the second inputs of the information source 5, the output of the information source through the transmitter is connected to the input of the communication channel, on the receiving side the input of the receiver is connected to the output of the communication channel, the output of the receiver is connected to the inputs of the generator, the first recording unit and the first inputs of the distributed pulses and the information consumer, the generator output is connected to the second input of the pulse distributor, the output of which is connected to the second input of the information consumer G23. A disadvantage of the known systems is the low reliability of information transmissions. The purpose of the invention is to increase the reliability of information transmission by improving the use of the dynamic range of a signal in a communication channel. The goal is achieved by the fact that the system for transmitting telemetry information containing sensors on the transmitting side, the outputs of which are connected to the first inputs of the switch, the timing device, the first output of which is connected to the second input of the switch, the transmitter whose output is connected to the input of the communication channel, the reception side; - the receiver, whose input is connected to the output of the communication channel, the first output of the receiver is connected to the input of the generator, the first output of the generator is connected to the input of the pulse distributor, the pulse distributor, analog-to-digital converter, keys, SHS elements and the sealing unit, output are entered on the transmitting side the switch is connected to the input of the analog-digital converter, the outputs of the analog-digital converter and the pulse distributor are connected to the first and second inputs of the corresponding keys, the outputs of the keys are connected to The corresponding inputs of the SHS elements, the outputs of the OR elements and the second output of the chronizer are connected respectively to the first and second inputs of the sealing unit, the output of which is connected to the input of the transmitter, the third output of the chromium distributor is connected to the input of the pulse distributor, the pulse shaper, totalizers, matrix switch, a frequency divider, a decoupler and a digital-to-analog converter; the second and third outputs of the generator are connected respectively to the 31 inputs of the pulse former and the divider the frequencies, the second output of the receiver and the outputs of the pulse former are connected respectively to the first and second inputs of the adders, the outputs of the adders and distributors of the impulses are connected respectively to the first and second inputs of the matrix switch, the outputs of which and the output of the frequency divider are connected respectively to the first and second inputs of the decompressor, the outputs of which are connected to the corresponding1) inputs of a digital-to-analog converter, the output of which is connected to the outputs of the system; the sealing block contains an adder ovateli pulses and the majority element, pulse shaping outputs connected to first inputs of corresponding adders, the outputs of the adders are connected to respective inputs of the majority element, second inputs of adder inputs and output pulse shaping majority element are connected respectively to first and second inputs and to the output of the sealing unit. The decompressor contains counters and threshold elements, the outputs of the counters are connected to the first inputs of the respective threshold elements, the first inputs of the counters and the outputs of the threshold elements are connected respectively to the first inputs and to the outputs of the decomposition unit, and the second inputs are connected and connected to the second input block decompression. Figure 1 shows the block diagram of the transmitting part of the system i in FIG. 2 - the same, the receiving part ;, in FIG. 3 - the same, majoritarian unit; 4 is the same as a decoupler; Fig. 5 shows voltage plots showing the operation of the transmission part of the system; Fig. 6 are diagrams of stresses explaining the operation of the receiving part. The transmitting part of the system (Fig. 1) contains a source of I information including a sensor 2 and a switch 3, a chronizer 4, which includes a frequency divider 5 and a generator of 6 clock pulses, an analog-to-digital converter 7, an 8-pulse distributor, 55 keys 9 , elements OR 10, major compaction unit 11 and transmitter 12. 8 Receiver part (FIG. 2) contains receiver 13, clock pulse generator 14, pulse driver 15, modulo 16 adders, two pulse distributor 17, matrix switch 18, divider 19 frequency, block 20 razush1otne} "and digital tax converter 21. The major consolidation unit 11 (FIG. 3) contains modulo two adders 22, pulse formers 23 and the majority element 24. The decompressor unit 20 (FIG. 4) contains counters 25 and threshold elements 26. The system works as follows, the transmitting part of the system, the generator 6 generates pulses L clock frequency and synchronizes the operation of the corresponding blocks 5.8 and 11 of the system. The frequency divider 5 produces a pulse Uj arriving at the control input of the switch 3. The latter connects the sensor 2, analog information from which is transmitted to the input of the analog-digital converter 7. At the output of the converter, a code is formed in a parallel form with the duration of the bit character equal to pulse repetition period U2. Suppose that converter 7 generates a six-bit code 110101, the bit symbols of which are represented by the corresponding plots of voltages Ug. These six bits of the code arrive at the inputs of the keys 9. At the same time, at the output of the distributor 8, whose operation is synchronized from. generator 6, six (by the number of bits of the information code) distribution pulses of the positive polarity Ug - .i are formed. The duration of the control pulse Ug, which commutes the information symbol of the first (senior) bit, is equal to twelve IMC periods, the pulse duration Q pulse and, the pulse duration and, the second digit information symbol, commutes, ten periods of the UT pulse, of the fourth, fifth, and sixth bits — eight, six, four heads, and two pulse periods, respectively (diagrams U, U; The first discharge start and reset of the first discharge pulse are made according to front and rear edges of the sixth-digit distributive pulse, start and reset of the sixth-decoupling impulse — the leading and leading edges of the first-digit distribution impulse, respectively, the second and leading fronts of the second-order distributive pulse the distribution pulse is of the second bit, and the start and discharge of the distribution pulse is of the second bit, respectively, the back and front edges of the distribution pulse of the second bit. The starting and resetting of the third and fourth distributive impulses are ana; awesome Next, the output symbols of the keys 9 arrive at the inputs of the elements of the ICH-, and the first element {-ShI receives the first and the sixth digit information symbols, which correspond to the diagrams of voltages Ug, and, the second element OR, the second and fifth digit symbols corresponding to ep frames of voltages U ,,,, and the third element OR - the commented information symbols of the third and fourth bits, corresponding to the diagrams of voltages, and J, As a result of such processing, at the outputs of the elements OR 10, the number information flows are 2 times less compared to the number of informational X flows on its in: soda, voltage plots, respectively, CS-Ts. These information flows post on the input, block 1 of the major consolidation and on the first inputs of summers 22 modulo two , to the other inputs of which there are DELHI impulses U-1Q- U, jj from the respective formers 23. The operation of the formers 23 is synchronized with the corresponding generator pulses 6, At the outputs of the adders 22 for {; JMYryyut three modulated sweats: and pulses LL, - and which n arrive at the inputs of the majority element 24. The majority element 24 operates as follows. If the symbols of the three streams arriving at the input of the element 24 in each time sample contain more ones than zeros, then a symbol equal to one or, otherwise, equal to zero is formed at its output into the corresponding time discrete. As a result of the iKoro algorithm of operation at the output of the majority element 24, one group signal is formed, which carries information at once from six information bits (voltage diagram, JK goes to transmitter 12. The dynamic range of the signal, i.e. the ratio of its maximum power to average is equal to one, and the energy of each information bit is redistributed in proportion to the duration of the distribution pulses. Thus, if we fix the energy diverted to transmit the entire group signal, and equaling the reliability of the received information to the proposed system with a system in which the group signal is transmitted with an even distribution of energy between the bits, then the gain in reliability is obtained, since as the transition to the transmission of higher discharges the probability of the uninterrupted is reduced. side of the system after establishing synchronization by clock pulses b%, and passing through 1–1b. ”receiver 13, the received group signal U2 is simultaneously fed to the input) 1 adders 16 modulo two, The inputs which, with the pulse shaper 15, receive signals and, -, are identical to the signals L - formed in the transmitting part of the system. The operation of the generator 15 is synchronized from the generator 14. As a result of summing at the outputs of the adder 16, three parallel streams of pulses (diagrams of the corresponding voltages J IL) are received at the matrix switch 18, the other signals of the distributor 17 pulses are received from the distributor 17 pulses L, - LL . identical to the signals generated on the transmitting side of the system by the distributor 8. The operation of the distributor 1 7 is synchronized with the clock pulses of the hsnerator 14, In the switch 18 there is a separation of three input streams U six parallel CD-Tsts incoming

7109

to the input of the decompressing unit 20, to the control input of which the gates are received of a frequency of 19 €.

In block 20, the counters 25 B1) 1 play the role of integrators and form the decomposition symbols U – U arriving at threshold elements 26, the outputs of which form bitwise in1) Ornament characters identical to the transmitted symbols and, Ug, to the transmit part of the system.

The information symbols of block 20 are fed to a converter 21, in which the digital signal is converted to analog.

A system with a uniform energy distribution for code bits is taken as the base object. Let the probability of an erroneous reception of each character of a six-digit binary code P 1ОЯ Then the signal-to-interference energy ratio.

1208

determined from the expression Rdsch), ftiT Transmission reliability, 01107 is variable by the dispersion of the opium,

bp,. The bit distribution of the total energy of the code group (the number of bits m 6) is expressed as:

t; 1 2 3 456.

, 1.14 2.28 3.44 4.5 5.7 6.8

Error dispersion is calculated using the formula

.2., 20Hlf / x

expi - v- | oix 3i.

4 / t / n-.

Win on the reliability of the transfer .- g

NP 136.5.

--- 4 times. .

61.31

cpv.2

% jninjijaruTjiJTjnjTJTJTruT

/

if2 J- S JrUlJrLI JriI jrLrU J rL

lfz2 -

cpi / .5

.

USDFig. 6

Claims (3)

one? TELEMETRIC INFORMATION TRANSMISSION SYSTEM, containing on the transmitting side sensors whose outputs are connected to the first inputs of the switch, a chronizer, the first output of which is connected to the second ©! the input of the switch is a transmitter whose output is connected to the input of the communication channel, on the receiving side there is a receiver whose input is connected to the output of the communication channel, the first output of the receiver is connected to the input of the generator, the first output of the generator is connected to the input of the pulse distributor, distinguishing - I am with the fact that, in order to increase the reliability of information transmission, a pulse distributor, an analog-digital converter, keys, OR elements and a sealing block are introduced into it on the transmitting side, the output of the switch is connected to the input of analog-digital the new converter, the outputs of the analog-to-digital converter and the pulse distributor * are connected to the first and second inputs of the corresponding keys, the outputs of the keys are connected to the corresponding inputs of the OR elements, the outputs of the OR elements and the second output of the chronizer are connected respectively to the first and second inputs of the block seals, the output of which is connected to the input of the transmitter, the third output of the chronizer is connected to the input of the pulse distributor, a pulse shaper, adders, matrix commom are introduced on the receiving side a tripod, a frequency divider, a decompression unit and a digital-to-analog converter, the second and third outputs of the generator are connected q respectively to the inputs of the pulse generator and frequency divider, the second output of the receiver and the output of the pulse generator are connected respectively to the first and second inputs of the adders, the outputs of the adders and the pulse distributor are connected respectively to the first and second inputs of the matrix switch, the outputs of which and the output of the frequency divider are connected respectively to the first and second inputs! decompression unit, the outputs of which are connected to the corresponding inputs! digital-to-analog converter, the output of which is connected to the outputs of the system. e 2. System pop. 1, distinguished by the fact that the compaction unit contains adders, pulse shapers and a majority element, the outputs of the pulse shapers are connected to the first inputs of the respective adders, the outputs of the adders are connected to the corresponding inputs of the majority element, second> The first inputs of the adder, the inputs of the pulse former and the output of the majority element are connected respectively to the first and second inputs and to the output of the compaction unit. 3. The system according to π. 1, with the fact that the decompression unit contains counters and threshold elements, the outputs of the counters are connected to the first inputs of the corresponding threshold elements, the first inputs of the counters and outputs of the threshold elements are connected respectively to the first inputs and the outputs of the decompression unit, the second inputs of the counters and threshold elements are combined and connected to the second input of the unit times the compaction.