SU1319061A1 - Device for collecting data from distributed objects - Google Patents

Abstract

The invention relates to telemechanics and can be used in telemetry systems that continuously receive signals about the state of objects from dispersed controlled points. The invention makes it possible to increase the reliability of the device by eliminating delays in the processing of information from all monitored items at a high frequency of changes in the state of objects. This is achieved by inserting the distributor 12 and the element OR 13 into a device comprising a clock pulse generator 1, a decoder 3, a control unit 2, a display unit 4, and information channels 5 — receivers 6 with memory blocks 7 and comparators 9. The control unit allows the output of information from the next polled information channel to the decoder for processing and recording in the display unit only in case of a change in the state of the objects. The distributor does not allow the processing of information about changes in the state of objects that have occurred in those information channels that have smaller order numbers, until the information to the decoder from the channels with larger order numbers has been completed. 1 h. item f-ly, 2 ill. § SA:; about o 0

Description

The invention relates to telemechanics and can be used in telemetry systems that continuously receive television signals on the state of dispersed objects.

The purpose of the invention is to increase the reliability of the device by reducing the redundancy of information received from objects.

FIG. 1 shows a functional diagram of the proposed device; in fig. 2 shows functional diagrams of a control unit and a pulse distributor.

The device (Fig. 1) contains a clock pulse generator 1, a control block 2, a decipher 3, a display block 4, information channels 5 containing the receiver 6, a memory block 7, a trigger 8, a comparator 9, the first 10 and the second 11 keys. The device also contains the distributor 12 pulses and the element OR 13.

The control unit 2 (Fig. 2) contains in each control unit 14 elements AND 15 and 16 elements OR 17 and triggers 18.

The distributor 12 pulses (Fig. 2) contains elements And 19 and 20 and the trigger 21 and the elements OR 22.

The device works as follows.

Via communication channels from the monitored points, information is continuously fed to the inputs of the corresponding receivers 6, in which the code messages, clock and cycle synchronization are registered, the code combinations are checked for the code used. The operation of the receivers 6 is provided by the first clock sequence of the generator 1. In the absence of errors in the received combination from the receiver 6, a parallel code is output to the first input of the memory unit 7 and the input of the comparator 9. At the same time, a signal to the comparator 9 is output from the first output of the receiver 6, by which he compares the code combination stored in block 7 with the code combination received by receiver 6 in the next cycle.

If the code combinations are different, which indicates a change in the state of the monitored object, a signal is output from the output of the comparator 9 to the first input of the trigger 8, which ensures that the trigger switches to the state "1. In this case, the signal from the direct output of the trigger 8 is supplied to block 7, ensuring the recording of the received code combination, and to the second input of the control block 2.

If the code combination has not changed, the signal at the output of the comparator 9 does not appear, information is not recorded in block 7, trigger 8 remains in the initial state, and its inverse output receives a signal at the corresponding third input of block 2. From generator 1 to the distributor 12 and block 2 arrive two

phase-shifted clock pulses (the amount of phase shift is set depending on the speed of the blocks that decrypt the code combinations).

The pulses from the generator 1 are fed to the first inputs of the elements AND 19 and 20 of the distributor 12. At the beginning of each polling cycle, the flip-flops 21 are in the initial state and the signals from the direct outputs

0 arrive at the second inputs of the first elements AND 19. Therefore, the pulses from the generator 1 through the element 19 arrive at the first inputs of the elements 15 and 16 of block 2. If the second input of the second element

If the signal "1 from the inverse output of the trigger 8" arrives, the signal 16-1 then the pulses from generator 1 pass through the first inputs of the elements 14 and 15 of the next control unit.

0 If from one of the blocks 5 (for example, from k-ro) the signal corresponding to the logical “1 comes from the direct output of the trigger 8, which indicates a change in the code combination in the memory block 7, then the pulse from the generator 1 goes to the cut element AND 15 to the input of the trigger 18, which is triggered and the signal from its output is fed to the control inputs of the first 10 and second 11 keys and the trigger 8 of the corresponding block 5. Recorded in

, In block 7, the code combination is read in parallel code into decoder 3. The result of the decryption through the public key 11 goes to the corresponding section of display unit 4. The trigger 8 is moved to its original position.

at the same time, the signal from the output of the trigger 18 goes to the corresponding second input of the distributor 12. This signal, passing through the OR element 22 of the first cells of the distributor, goes to the flip-flops 21, which are thrown and the logical signal "1 appears on their inverse outputs connected to the second inputs of the second elements And 20.

Upon completion of decryption and outputting information to display unit 4, a pulse is sent to the first input of unit 2, resetting the corresponding trigger 16 to the initial state.

Upon receipt of the next pulse of the first sequence from the generator 1 to the distributor 12, the pulse passes

0 successively through the second elements AND 20 of the first cells, and from the output of the subsequent element AND 20 is fed to the second input of the element OR 17 of block 2 and the polling cycle continues.

At the end of reading information

5 from all blocks of memory 7, in which the information has changed, the pulse from generator 1, having passed distributor 12 and all nodes of block 2, appears at output 5

poro of element 15 or trigger output 16 (depending on whether the information in memory block 7 has changed or not changed). This impulse, the passage through the element OR 13 transfers the triggers 21 to the initial state.

When the next clock pulse of the first sequence arrives from generator 1 into the distributor, the polling cycle repeats. .

Claims (2)

Invention Formula I. Device for collecting information from distributed objects, containing a clock pulse generator, the first output of which is connected to the first input of the control unit, and in each information channel a receiver, the first and second outputs of which are connected to the first inputs of the memory unit and comparator, respectively, the output unit the memory is connected to the first input of the first key and the second input of the comparator, the output of which is connected to the first input of the trigger, the output of which is connected to the second input of the memory unit, the second key, the first inputs All of the information channels are combined and connected to the second output of the clock generator, the first outputs of the control unit are connected to the combined first input of the second key and the second inputs of the trigger and the first key of the information channel of the same name, the output of the wormshaper is connected to the second inputs of the second keys of each information channel, the outputs of which are connected to the corresponding inputs of the display unit, the first and second outputs of the trigger of each information channel are connected to the corresponding second and the third inputs of the control unit, the outputs of the first keys of each information channel are combined and connected to the input of the descrambler, the inputs of the receivers of all information channels are device inputs, characterized in that, to increase the reliability of the device, the pulse distributor and the OR element are entered into it, The second output of the clock generator is connected to the first input of the pulse distributor, the outputs of which are connected to the corresponding fourth inputs of the control unit, the first outputs of which are connected The second and one of the first outputs of the control unit are connected respectively to the first and second inputs of the OR element, the output of which is connected to the third input of the pulse distributor, and in each information channel the first output of the receiver is connected to the third input of the comparator. 2. The device according to claim 1, characterized in that, according to the number of information channels, the control unit contains control nodes, each of which contains the first and second AND elements, a trigger and, besides the last information channel, the OR element, the outputs of the first and second AND elements, are connected to the first inputs, respectively, of the trigger and the OR elements, 5, the output of the OR element of each control node, except the last one, is connected to the first inputs of the first and second elements AND the subsequent control node, the first inputs of the first and second elements and the first control node are combined, the outputs of the triggers of each control node are the first outputs of the control unit, the output the OR element of the penultimate control node is the second output of the control unit; the combined second inputs of the triggers of each control node are 5, the first inputs of the control unit, the second inputs of the first and second elements AND of each control unit are respectively the corresponding second and third inputs of the control unit, the first inputs of the first and second elements AND of the first 0 the control unit and the second inputs of the OR elements of the remaining control units are the corresponding fourth inputs of the control unit.