SU1305754A1 - Device for reception of telemetering information - Google Patents

Abstract

The invention relates to information transmission techniques and can be used in multichannel telemetry systems. The purpose of the invention is to increase the speed of receiving information. To achieve this goal, a second code converter, the second and third OR elements, are entered into the device, which allows the information transmitted by the combined messages to be received and unambiguously distributed. 1 il.

Description

11305754 2

The invention relates to the content area of both converters of information transfer technology and can be carried out simultaneously by pulses supplied from synchronization unit 5 to shear (control)

be used in multichannel telemetry systems.

The aim of the invention is to increase the 5 inputs of the transducers 6 and 7. These

beyond the speed of receiving information.

The drawing shows a diagram of the proposed device.

The device for receiving telemetry information contains the identifier of 1 characters, the elements OR 2-4, the synchronization unit 5, the serial and parallel converters 6 and 7, the decoder 8 and the And 9 elements — 9j c

the pulses are synchronous with the clock pulses, but are delayed relative to them for the time required for recording. Thus, JO each channel message symbol is recognized; the value information contained in it (O or 1) is allocated in the corresponding bit of both the channel number code and the code

15

substantial reference; after recording these values in the converters, their contents are shifted by one bit. With the arrival of the last K-th channel symbol, the device operates as follows.

The telemetry input signal. Arrives at the character identifier,

where is converted into a serial-20 containing information of video pulses appearing on it is recorded (after the shift operation)

in the second bits of the converters 6 and 7, and the information obtained from the first character of the first character is in

his exits. Pulse durations are the same and less than the duration of the input symbols. The amplitudes of the pulses correspond to the logic level 1. At the same time, a pulse can occur only at one of the outputs, while at one output the pulses correspond to the presence of the character with the f sign, at the other output - the symbol with the sign f, and at the third output - the symbol with the sign f. , at the fourth output, the symbol with the sign f „, and at the fifth output - the symbol with the sign f. The pulses from the outputs of the identifier arrive at the four-input element OR 2, indicate the presence of any of the symbols of the channel message, and in their entirety, at the output of the element OR 2, form clock pulses arriving at the input of the synchronization unit 5. From the outputs of the identity of 1 characters, the pulses also arrive

thirty

(K + 1) bit dah.

By means of the shift pulses, the synchronization unit 5 generates, with a certain delay, required to perform the last shift operation, a read pulse that is fed to the read inputs of converters 7 and 6. At the inputs of the decoder 8, the channel number appears, and outputs - a signal that opens a group of elements And 9 corresponding to a given channel number through the control 35 inputs. At the same time, the information entry of the AND elements in all groups, using the read signal from the converter 7, is given a code of a substantial count, which is sent only to the output with the corresponding number

channel. I

40

at the input of the element OR 3. These pulses 45 Later, when receiving the second and in their entirety, they form pulses of all subsequent channel messages of record 1 into the code of the channel number, work in a similar way, and come from the output of the element OR 3 while forcibly zeroing to the recording converter input converters 6 and 7 are not required, 6 serial code in parallel- 50 since the number of bits in the channel

ny. At the same time, the pulses from the outputs of the identifier 1 arrive at the input of the element OR 4, forming at its output the pulses of code 1 into the code: a substantial count, which are fed to the recording input of the second converter 7 of the serial code into a parallel one. Defective Shift

the pulses are synchronous with the clock pulses, but are delayed relative to them for the time required for recording. Thus, each channel message symbol is recognized; the value information contained in it (O or 1) is allocated in the corresponding bit of both the channel number code and the code

substantial reference; after recording these values in the converters, their contents are shifted by one bit. With the arrival of the last K-th symbol of the channel message

 the information contained in it is recorded (after the shift operation)

in the second bits of the transducers 6 and 7, and the information received from the r first character is in

0

(K + 1) bit dah.

By means of the shift pulses, the synchronization unit 5 generates, with a certain delay, required to perform the last shift operation, a read pulse that is fed to the read inputs of converters 7 and 6. At the inputs of the decoder 8, the channel number appears, and outputs - a signal that opens a group of And 9 elements corresponding to a given channel number through the control 5 inputs. At the same time, the information entry of the AND elements in all groups, using the read signal from the converter 7, is given a code of a substantial count, which is sent only to the output with the corresponding number

channel. I

0

messages always equal to K. However, in order to increase the reliability of the device operation with possible failures in the channel messages of the telemetry frame, a forced reset is carried out at the setup input by the pulses of the synchronization unit 5 synchronous with

3

impulses marker frame produced at the output of the identifier 1 at the end of each frame.

Thus, the additional introduction of new elements makes it possible to receive and unambiguously distribute the information transmitted by the combined messages, in which the channel number code and the essential reference code are transmitted simultaneously.

Claims (1)

Invention Formula A device for receiving telemetric information (J) containing a symbol identifier whose input is the input of the device, the first output is connected to the first input of the synchronization unit, the outputs of which are connected to the corresponding first inputs of the first serial to parallel converter, the outputs of which are connected to the corresponding the inputs of the decoder, the elements AND, OR, characterized in that, in order to increase 0575A4 informativity of the device, the second and third elements OR and the second serial code-to-parallel converter are entered into, the AND elements are combined into groups by the number of channels, the second, third, fourth and fifth outputs of the character identifier are connected to the corresponding inputs of the first, second and three elements OR, the output of the first element OR is connected to the second input of the synchronization unit, the outputs of which are connected to the first inputs of the second transducer of the sequential 5 code into parallel, the output of the second and third About the OR elements are connected to the second inputs of the first and second converters of a serial code into a parallel one, the 20 outputs of the decoder are connected to the first inputs of the elements of the channel of the same name, the same outputs of the second converter of a serial code into a parallel connector 25 dinene with the second inputs of the elements of the same name AND each channel. (affaji i channel tif nanal VNIIPI Order 1457/50 Circulation 544 Random polygons pr-tie, Uzhgorod, st. Project, 4 Subscription