SU1472850A1 - Recorder of galvanic connections - Google Patents

Abstract

The invention can be used when checking a wiring diagram of an electrical installation, for example, a cable, a harness, etc. The purpose of the invention, the enhancement of functionality, is achieved by fixing the inter-coupling in the tested product. For this, block 5 of blocking circuits, block 4 of galvanic isolation, switch 3 codes and block 9 of control and printing are added to the recorder. The logger also contains a switch 1 connection and a switch 2 poll. At each operation clock, switch 1 connects the potential of a logical unit to one of its outputs, which is connected via galvanic isolation unit 4 to the first 22 and second 23 input connectors, to the contacts of which the product to be connected is connected. The polling switch 2 sequentially polls its inputs, which are connected via the block 5 with the contacts of the input connectors, and upon detecting the potential of a logical unit, issues a signal to the block 9 of control and printing to fix the detected link. Generator 6, counter 13, triggers 8, 10, 11, 12, elements 7, 18, 19, 20 AND, elements 16 and 17 OR, drivers 14 and 15 ensure the operation of the device in automatic mode. 1 hp f-ly, 2 ill.

Description

unit, galvanic isolation unit 4, switchboard 3 codes and unit 9 of control and printing. The logger also contains a switch 1 connection and a switch 2 poll. Switch 1 on each clock cycle connects potential 1 to one of its outputs, which are connected via galvanic isolation unit 4 to the first 22 and second 23 input connectors, to the contacts of which the product being connected is connected. The polling switch 2 sequentially polls its inputs, which are connected via the block 5 with the contacts of the input connectors, and when a potential is detected, outputs a signal to the control and printing unit 9 to fix the detected connection. The generator 6, the counter 13, the triggers 8, 10, And, 12, the elements And 7, 18, 19, 20, the elements OR 16 and 17, the formers 14 and 15 ensure the operation of the device in automatic mode 1 ZP. f-ly, 2 ill.

one

The invention relates to instrumentation engineering and can be used to test and promptly document the wiring diagram of electrical installation, for example, cable, harness, and cross-connect connector.

The purpose of the invention is to expand the functionality by ensuring the fixing of the inter-coupling in the tested product.

Fig. 1 shows a block diagram of a registrar of galvanic couplings; in fig. 2 is a block diagram of a blocking circuit.

The recorder contains a switch 1 connection, a switch 2 interrogation, a switch 3 codes, a block 4 galvanically isolated, a block 5 of locking circuits, a generator of 6 pulses, the first element I 7, a first trigger 8, a block 9 of control and printing, the fourth 10, the third 11 and second 12 triggers, pulse counter 13, first 14 and second 15 drivers, first element OR 16, second element OR 17, second element AND 18, fourth element AND 19, third element AND 20, zero block 21, first 22 and second 23 input connectors. The output of the zeroing unit 21 is connected to the first input of the connecting switch 1 and the first input of the polling switch 2, the first output of which is connected to the first input of the first trigger 8, the output of which is connected to the nepBciA input of the first element And 7, the second output of which is connected to the output of the pulse generator 6, and you

0

0 5

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move - with the second input of the switch 2 of the survey, the third output of which is connected to the second input of the switch 1. The first input of the counter 13 is connected to the output of the first element AND 7, the second input to the output of the first element OR 16, and the output to the information input of the switch 3 code, the first and second outputs of which are connected respectively to the third and fourth inputs of the control and printing unit 9 and the control input is connected to the output of the third trigger 11, the first input of which is connected to the first input of the second trigger 12 and to the output of the second element OR 17, the second input to the third output of the interrogation switch 2 and the first input of the first element OR 16, The open input of which is connected to the first input of the block 5 of the blocking circuits, the fifth input of the control and printing block 9, the output of the zeroing block 21, the first input of the second element OR 17 and the first input of the fourth trigger 10, the output of which is connected to the first input of the second element AND 18, the output of which is connected to the second input of the first trigger 8, and the second input to the output of the zeroing and printing unit 9, the second input of which is connected to the output of the second driver 15, the input of which is connected to the first output of the polling switch 2 and the second input of the second trigger and 12, the output of which is connected to the first input of the fourth element I 19, the output of which is connected to the second input of block 5 of the blocking circuits, and the second input to the fourth output of the interrogation switch 2, the third and fourth inputs of which are respectively connected to the corresponding first and second outputs of the block 5 blocking circuits, the third and fourth inputs of which are respectively connected to the corresponding contacts of the first 22 and second 23 input connectors and to the first and second outputs of the galvanic isolation unit 4, the first and second inputs of the cat The first is respectively connected to the corresponding first and second outputs of the switch 1 of the connection, the third output of which is connected to the first input of the third element AND 20, the output of which is connected to the second input of the fourth and third trigger 10, and the second input to the second output of the interrogation switch 2, the second input the second element OR 17, the third input of the first element OR 6 and the input

20 of the switch 2 of the polling, as well as the 13 inputs of the pulses to the second input and chronically change their state. Thus, the output code of the counter 13 pulses corresponds to the number of the contact

the first driver 14, the output of which is 25 first 22 or the second 23 input

It is connected to the first input of the control and printing unit 9.

The blocking circuit block (Fig. 2) contains blocking circuits by the total number of contacts of the first 22 and second 23 input connectors, each of which contains the first 24 and second 25 I-NOT elements, trigger 26, and inverter 27, whose input is connected to one of the third and the fourth inputs of block 5 of the blocking circuits, the output with the first input of the second element AND-NOT 25 and the first input of the first element AND-NOT 24, the second input of which

The switch 2 polls during the tact of its work polls all its third and fourth inputs. As the first contact of the first 22 or second 23 input connectors with a potential 1 is detected from the first output of the switch 2, the first trigger 8 passes the counting pulses of the generator 6 to the output of the first element I 7, and also forms the second driver 15 of the time 45

connected to the second input of the block 5 of the circuit 40 of the decisive block of the control and printing block 9, and the output connected to the first input of the trigger 26, the second input of which is connected to the first input of the block 5 of the blocking circuit and the output connected to the second input of the second element 25 NAND, the output of which is connected to the corresponding output of block 5 of the blocking circuits.

The device works as follows.

In control and printing unit 9, start and end printing signals are generated. In the time interval from the beginning to the end of printing, the control and printing unit 9 prints the numbers of contacts present in the form of a binary-decimal code at its third and fourth input, if a signal arrives at its second input, I allow 50

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printing a detected telecommunication. After polling the last contact of the first connector 22, the switch 2 of the poll generates a signal at its third output, which through the first element OR 16 sets the pulse counter 13 to the zero state, and through the third trigger 11 switches the switch 3 of the code so that the code arriving at the input of this switch appears only at its second output, i.e. will be printed on the track corresponding to the second connector 23 of the product.

After interrogating the last contact of the second connector 23, the interrogation switch 2 operates as follows.

Initially, at its fourth output, it generates a signal that through 72850 -4

printing. After printing, the control and printing unit 9 pulls through the paper tape and thereby prepares for further work. In the time interval from the end to the beginning of printing, a search is made for the connections in the product.

Switch 1 connects to one of its first or second outputs potential 1, which is transmitted through the corresponding channel of the galvanic isolation unit 4 to the contacts of the first 22 or second 23 input connectors, and then through 15 the corresponding channels of the blocking circuit 5 - to third and fourth inputs of switch 2 polling.

The pulses of the generator 6 through the first element And 7 are fed to the second input

the switch 2 of the poll, and also on the first input of the counter 13 pulses and synchronously change their state. Thus, the output code of the counter 13 pulses corresponds to the contact number

first 22 or second 23 input

connectors connected by the switch 2 polling to the first output of this switch.

The switch 2 polls during the tact of its work polls all its third and fourth inputs. As the first contact of the first 22 or second 23 input connectors with a potential 1 is detected from the first output of the switch 2, the first trigger 8 passes the counting pulses of the generator 6 to the output of the first element And 7, and also generates the second driver 15 of the signal allowing the control unit 9 and print

decision block 9 control and print

printing a detected telecommunication. After polling the last contact of the first connector 22, the switch 2 of the poll generates a signal at its third output, which through the first element OR 16 sets the pulse counter 13 to the zero state, and through the third trigger 11 switches the switch 3 of the code so that the code arriving at the input of this switch appears only at its second output, i.e. will be printed on the track corresponding to the second connector 23 of the product.

After interrogating the last contact of the second connector 23, the interrogation switch 2 operates as follows.

Initially, at its fourth output, it produces a signal that

five

The fourth element And 19 is cut to the second input of block 5 of the blocking circuit and prohibits the passage of signals 1 from the third inputs to the first outputs and from the fourth inputs to the second outputs of block 5 of the blocking circuits along those buses where signals 1 are present during this work cycle. Thus, block 5 of the blocking circuits excludes reprinting of the contacts of the same name. For example, if there are contacts in the first connector 22 of the product, in the absence of a blocking circuit block 5, the device would print;

in the first cycle of the switch 2 polling: 1-2-3 - the first bus is connected to the second and third;

in the second cycle: 1-2-3 - the second tire is connected to the first and third;

in the third cycle: a 1-2-3 third tire is connected to the first and second, i.e. “the same electrical cable would be printed three times. Block 5 of the blocking circuits, after the end of the first cycle of the switch 2 of the interrogation by the signal from its fourth output, will block the first, second and third buses of the third outputs of block 5 of the blocking circuits and will not be fixed in the subsequent cycles to the end of the measurements.

Then, the polling switch 2 generates a signal at its second output, which through the first element OR 16 sets the counter 13 to them

pulses to the zero state, and through the second element OR 17 and the third trigger 11, switches the switch 3 codes so that the code arriving at the information input of this switch appears only at its first output, i.e. will be printed on the track corresponding to the first 22 connector of the product.

At the same time, the signal at the second output of the interrogation switch 2, arriving at the second input of the connecting switch 1, connects the signal G1 to the next first or second output, i.e. prepares connection switch 1 to work in the next cycle.

The signal from the second output of the opto switch 2 also goes to the first generator 14, which allows the formation of a command to indicate a space in the print. Spaces separate z

groups of interconnected contacts, which ensures print consistency.

Thus, in the first cycle of operation, the switch 1 connects the signal 1 to the first pin of the first connector 22 of the product, and

five

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five

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The polling switch 2, finding a bus with a single potential, allows the control unit 9 to print and print the numbers of these tires on a paper tape.

In the following cycles, the device operates in the same way, namely, it searches for the connections of the following contacts of the input connectors 22 and 23 of the product with the other contacts of these connectors of the product.

After the last operation cycle (formation 1 at the last second of the second outputs of switch 1 of connection), the signal from the second output of switch 2 polling switches switch 1 of connection in such a way that signal 1 appears only at its third output and opens the first input is the third element AND 20. In this case, the signal from the output of the third element AND 20 is fed to the second input of the fourth trigger 10, setting it to the zero state. The fourth trigger 10 closes the second element AND 18 at its first input and thereby prohibits the passage of the print end signals from the output of the control unit 9 and the print that serve to start the device in the automatic operation mode.

Block 5 of the blocking circuits (Fig. 2) 0 consists of identical blocking circuits, the number of which is equal to the sum of the number of contacts of the input connectors 22 and 23. The first and second inputs of all blocking circuits are combined and are 5 with the first and second inputs of the block 5 circuits respectively blocking.

The blocking scheme works as follows.

By pressing the button on the block 21, 0, 0, all the locking circuits are reset to their original state. In this case, the signal arriving at. the third input through the inverter 27 and the second element AND-NOT 25, open through the second 5 input, passes to the output of the blocking circuit.

The initial state is provided as follows: signal 1 is fed to the second trigger input, set 5

It is located in a single state, thereby opening the IS-NE 25 element at the second input.

The blocking signal from the fourth output of the interrogation switch 2, arriving at the second input of the blocking circuit, passes through the first NAND element to the first trigger input in case of a signal 1 at the input of the inverter connected to one of the third or fourth blocking circuit block inputs. Switching to the zero state, the trigger blocks the signal from the first input of the second element

And-NOT to the output of the blocking circuit, i

Thus, at the end of each cycle, only those tires of the product are blocked on which signal 1 is present, and the blocking is performed for the duration of all subsequent cycles until the end of the product check.

Claims (2)

1. A galvanic communications recorder containing a zeroing unit, the output of which is connected to the first input of the connection switch and the first input of the interrogation switch, the first output of which is connected to the first input of the first trigger, the output of which is connected to the first input of the first And element, the second input of which is connected with the output of the pulse generator, and the output with the second input of the interrogation switch, the second output of which is connected to the second input of the connecting switch, the first and second input connectors, characterized in that Functional capabilities, by fixing the inter-couplings in the tested product, a control and printing unit with five inputs and one output, galvanic isolation unit, blocking circuit block, code switch, second, third and fourth triggers were inserted into it, the first and second shapers, the first and second elements OR, the second, third and fourth elements AND, the counter whose first input is connected to the output of the first element AND, the second input to the output of the first element OR, and the output to the information input of the switch ora code, the first and the WTO Jq 15 2Q five 35 d. dg five The swarm outputs of which are connected respectively to the third and fourth inputs of the control and printing unit, and the control input to the output of the third trigger, the first input of which is connected to the first input of the second trigger and to the output of the second OR element, the second input to the third output of the polling switch and the first input of the first OR element, the second input of which is connected to the first input of the blocking circuit, the fifth input of the control and printing unit, the output of the zeroing unit, the first input of the second OR element, and the first input of the fourth trigger Serra, the output of which is connected to the first input of the second element I, the output of which is connected to the second input of the first trigger, and the second input - to the output of the control and printing unit, the second input of which is connected to the output of the first forming unit, the input of which is connected to the first output of the interrogation switch and the second input of the second trigger, the output of which is connected to the first input of the fourth element I, the output of which is connected to the second input of the blocking circuit blocking circuit, and the second input to the even, r-rty output of the polling switch, the third and fourth inputs Secondly, they are respectively connected to the corresponding first and second outputs of the blocking circuit, the third and fourth inputs of which are respectively connected to the corresponding contacts of the first and second input connectors and to the first and second outputs of the galvanic isolation unit, the first and second inputs of which are respectively connected to the corresponding first and the second outputs of the connection switch, the third output of which is connected to the first input of the third element And, the output of which is connected to the second input of the fourth trigger, and the second input — with the second output of the polling switch, the second input of the second OR element, the third input of the first OR element, and the input of the first driver, the output of which is connected to the first input of the control and printing unit. 2. A recorder according to claim I, characterized in that the blocking circuit blocking comprises blocking circuits by the total number of contacts of the first and second input connectors, each of which contains the first and second elements NAND, a trigger and an inverter, the input of which is connected to one of the third or fourth inputs of the blocking circuit block, the output to the first input of the second element NAND and the first input of the first element NAND, the second the input of which is connected to the second input of the blocking circuit, and the output to the first input of the trigger, the second input of which is connected to the first input of the blocking circuit of the blocking circuit, and the output to the second input of the second NAND element, the output of which is connected to the corresponding output of the blocking circuit of the blocking circuit .