SU1712903A2 - Wiring structures tester - Google Patents

Abstract

The invention relates to instrumentation engineering and can be used for automated control of electronic equipment installation structures. The purpose of the invention is the expansion of the field of application is achieved by allowing control of installation structures under the influence of its own voltage sources, by introducing into block 13 an analysis of the circuit of the device of channel optoelectronic switches 16 and 17, which can eliminate the effect of such stresses on the results of the analysis . The device also contains an information pre-processing unit 8, a printing unit 11, a distribution-information block 9, a control unit 1, an output register block 12, first 2 and second 3 reference registers, contact counters 7 and circuits 6, first 4 and second 5 comparison units, a signature fixation and state block 14, a circuit analysis block 13 and an information input block 10. 4 ill. And

Description

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The invention relates to a reference measurement technique and can be used for the automated control of mounting structures of electronic equipment.

A device is known that allows a source of excitation to be stable. the current of two contacts of the controlled target and the subsequent processing of the obtained reactions to judge the accuracy and quality of the compounds of the controlled product.

The disadvantage of this device is that the verification of the correctness of the circuits is carried out by successively searching the contact pairs, which leads to an increase in the monitoring time proportional to the square of the number of monitored contacts.

It is also known a device for controlling assembly structures comprising a control unit, first and second ztalon registers, first and second comparison units, circuit and contact counters, preliminary information processing unit, information distribution unit, information input unit, printing unit, output register unit, blocks circuit analysis, polling address decoder, channel stable current sources, digital-to-analog converter and comparators.

The disadvantage of this device is that in the process of monitoring circuits, channel current sources are closed on the common wire of the device, which is unacceptable in the case of monitoring mounting structures that are under voltage of their own current sources. In particular, the correctness of the ctpyKTyp installation, which incorporates an electromagnetic relay, can be judged only by ensuring their switching by applying electrical voltages to them.

The purpose of the invention is to expand the field of application of the device due to the control of mounting structures under the influence of its own voltage sources.

The goal is achieved by the fact that in a device for controlling assembly structures, containing an information input unit, connected to the first input of the preprocessing unit, the second input of which is connected to the output of the output register, and the first output to the input of the print unit, the second control output of the unit pre-processing of information is connected to the input of the distribution block - information, and the third information output is connected by bus

together with the control outputs of the information distribution unit with the circuit and contact meters respectively, the first output of the circuit counter is connected to

a bus with a third input of the output register and with the first inputs of n network analysis units, and the first input of the output register is connected by bus to the fifth output of the control unit, with the outputs of the information distribution and preprocessing units connected to the first input of the control unit as well as the inputs the first and second standard registers, the outputs of which through the first and second blocks

5 comparisons are connected to the third and fourth inputs of the control unit, the third output of the control unit is connected by bus to the second inputs n of the network analysis units, the first and second outputs of the control unit

0, are connected to the inputs of the circuit and contact counters, and the inputs of the first and second comparison blocks are connected by buses to the second outputs of the circuits of circuits and contacts, respectively, and the first output of the contact counter is connected by bus to the second input of the output register, the fourth input of which is connected to the output of the signature fixation block and the states and the second input of the control unit, and the fourth output of the control unit — with the second input of the signature and state fixation unit; the first n inputs of the latter are connected to the n outputs of the network analysis units Respectively, the control unit contains the first OR element, which is the first input of the control unit, one of the inputs of which is connected to the input of the initial installation of the second trigger, and the other is connected to the input of the initial installation of the third trigger and counting input

0 of the second trigger, the output of the latter is connected to the first input of the third element I and is the fourth output of the control unit, and the third input of the latter is connected to the first element I, the second input of which is the fourth input of the control unit connected to the initial installation input of the fourth trigger, and the output is connected to the input of the initial setup of the first trigger, the synchronization input of which

0 is associated with the output of the first OR element and is the fourth output of the control unit, a clock generator connected to the inputs of the sixth, fourth and second elements AND, the last of which is connected

5 other inputs with the outputs of the first and fourth triggers, and the output with the counting input of the fourth trigger, which is the first output of the control unit, the output of the fourth trigger is connected to the input of the initial installation of the counter, the counting input

the counter is connected to the output of the fourth element And, and the first output of the counter is connected to the second input of the fourth element And, the second input of the sixth element And and through the first element NOT to the first input of the fifth element And, the second input of which is connected to the second output of the counter, and the third output through the second element is NOT connected to the third input of the fifth element AND, the output of which through the third element OR is connected with the second output of the counter to the third output of the control unit, the second input of the third element OR is connected to the output The second element and the fourth output of the control unit, and the second input of the sixth element And is connected to the output of the third element And, the second input of which is connected to the output of the third trigger and is together with the output of the first trigger the fifth output of the control unit, and synchronization of the third trigger is connected to the output of the second OR element, the inputs of which are the second input of the control unit, the signature fixation and state block are connected by the outputs of the n network analysis units containing the poll address decoder and the receiving register, the control inputs of the latter and the inputs of the decoder are the second and first inputs of the respective block, the outputs of the poll address polling decoder are connected to the control inputs of the first channel optoelectronic switches, and the outputs of the second channel optoelectronic keys are connected to the inputs of the receiving register, the output of which is the output of the block, the inputs of the first and control inputs of the second channel keys of each channel are interconnected AND; the terminals for connecting the monitored product, and the outputs of the first channel switches and the analysis units are connected to each other and to the outputs of channel sources of stable current, the other output of which is connected to another control input of the second channel switch.

The introduction of the first and second channel optoelectronic switches allows galvanically unloading the circuits of the monitored product and the control device and thereby controlling a wide range of mounting structures whose circuits can be influenced by their own sources of voltage.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 -circuit optoelectronic switch connections; in fig. 3 is a control block diagram; in fig. 4 is a diagram of the signature fixation and status block for the case of p-16.

The device for controlling assembly structures contains a control unit 1, the first 2 and second 3 registers of standards, the first 4 and second 5 comparison units, a counter 6 of circuits and a counter 7 of contacts, a block 8 of preliminary information processing, a block 9 of information distribution, an input block 10 information, printing block 11, output register block 12, network analysis blocks 13, and signature fixing block 0 14.

The circuit analysis unit 13 includes a decoder 15 polling addresses, the first 16 and second

17-channel optoelectronic keys, block

18 receiving register and channel sources NICKI 19 stable current.

The signature and state fixing unit 14 (FIG. 4) contains a register 20, a first modulo-21 adder 21, a multiplexer 22, and n blocks 23 of the second modulo-two adders.

The control unit 1 (Fig. 2) contains the first element OR 24, the first element AND 25, the second element OR 26, the first 27, the second 28 and the third 29 triggers, the second 30 and

5 third 31 elements AND, fourth trigger 32, fourth element AND 33, clock generator 34, counter 35, first 36 and second 37 elements NOT, fifth 38 and sixth 39 elements AND, and third element OR 40.

0 Control block 1, first 2 and second 3 registers of standards, first 4 and second 5 blocks. comparison keys, 6-circuit counter and 7-contact counter, preprocessing information block 8, distribution block 9

5, the information input unit 10, the printing unit 11, the output register 12, the signature fixing and status block 14 are similar to the prototype device and are made on similar elements. The circuit analysis unit 13 contains standard digital elements of the K555 series. The optoelectronic switches 16 and 17 of the circuit analysis unit can be made, for example, on the basis of optotransistors of the type ZOL 10 or AOT110 or

5 similar.

The device works as follows.

In the initial state, the registers of the standard of chains 2 and contacts 3, as well as the counters

0 circuits 6 and contacts 7 are reset to zero, all the triggers in control block 1 and registers in blocks 18 and 20 are in the zero state, signals from the output of information distribution block 9 are not received. All outputs of the decoder 15 polling addresses are in a high-impedance state.

At the beginning of the operation of the device, information from the monitored mounting structure comes from the input unit 10 through the preprocessing unit 8 to

information distribution unit 9, the control signals of which record the number of monitored circuits in block 2, and the number of monitored contacts in block 3. When the fast deconstructing signal from the information distribution unit 9 is received, the trigger 27 is set to the first input of control unit 1 in one state, and the trigger 28 is fixed in the zero state, which determines the operation of block 14 in the signature fixation mode. The clock frequency is received from the generator 34 through the fourth element I 33 to the input of the counter 35, and also through the second element I 30 to the input of the trigger 32 and prohibits further changing the state of the fourth trigger 32. At the same time, the output of the element I 30 excites through the counter 6 the first decoder output 15 of the polling address, which causes the current to flow through the LED of the control input of the first optoelectronic switch of the corresponding channel. The current flowing through the LED, in turn, causes the opening of a photo of the same key. In Result, Je, circuits are formed for the flow of currents: from the source 19 of a stable current of the excited channel through the LED of the second 17 and the open phototransistor of the first 16 keys of the same channel; from the source 19 of the stable current of other channels, the LED of the second key 17 of its channel, the terminal of its own and the excited channels, if they have a connection between themselves in a controlled mounting structure, an open phototransistor of the first 16 key of the excited channel. The flowing currents through the LEDs of the second optoelectronic keys cause the phototransistors to open these keys. The state of the phototransistors of the second channel optoelectronic switches is perceived by the receiver register.

The presence in the current circuits of semiconductor structures and sources of stable current makes it possible to determine the presence in the controlled installation structure of a compound having a resistance of a finite value, to unambiguously determine the presence and direction of switching on the semiconductor structure of the test compound and at the same time provides protection against false triggering of the analysis circuit presence in a controlled connection of its own voltage source, and the presence of an optoelectronic separation between the circuits of analysis and Botko information protects the latter from possible overvoltages from sources of stress examined emoy structure.

The sequential counting of the counter 35 together with the elements NOT 36 and 37, And 38 and

OR 40, generates signals for parallel writing in registers 18 and further signals for sequential reading of information received from the outputs of the second channel optoelectronic keys 17.

0 When the counter reaches state 35, the four level of the logical unit prohibits the change of the state of counter 35 through the element 33 and at the same time allows the passage of the clock frequency from

5 generator 34 through the elements And 31 and 39 to the inputs of the register 20 of the counter 7 of the contacts and through the element IL AND 40 to the input of the registers 18, the outputs of which are connected to the inputs of the block 14, which in the case of p 16 is made as

0 adder 21 po modulo two, having four inputs connected to the first, third, fourth and twenty-fourth outputs of register 20, and, its input through multiplexer 22 and adder 23 modulo

5 two are connected to the first information input of the register 20, the next fifteen inputs of which receive information from the outputs of the adders 23 connected via multiplexer 22 to

0 first fifteen outputs of the register 20, respectively. This structure of connections allows to obtain a given high reliability of control by the method of signature analysis with a length of values. The register size 20 is selected based on the maximum number of values given. are input to the register of fixation of the signature, and is defined as follows. Thus, the number of circuit counter values is limited by the number, and due to parallel processing of the outputs of the circuit analysis blocks 13, the contact counter width can be limited by the number and therefore the maximum number of values arriving at

5 input register 20 may have a value equal to 2 ° x2 22.

When the counter reaches 7 contacts, the value specified in the register 3 of the contacts standard, the comparison unit 5 resets

0 trigger 32 to zero state. With the arrival of a clock pulse from the generator 34, the output of the second element I 30 adds one to the counter of 6 circuits, which in turn excites the second output of the decoder 15 of the polling address, and the cycle described above repeats.

Thus, all points of the assembly structure are checked on the principle of each with each. However, due to the parallel processing of information by the block

14 from all the circuit analysis units 13, the monitoring time is linearly dependent on the number of monitored points. When the counter 6 chains reaches the value recorded in the chain converter register 2, the comparison unit 4 together with the output of the comparison unit 5, through the first element 25, resets the first trigger 27 and the resultant signature information is output from the signature fix register 20 through the output register 12 and block 8 preprocessing on the printing unit 11 At this point, the operation of the device in the BR mode ends.

If the signature obtained in the BR mode does not match, the reference one is executed mode I Fault Detection (OH). In this mode, the control unit 1 operates in a similar way with the only difference that, by the command IT coming from the information distribution unit 9, the second trigger 28 is set to one state and switches the block 14 to the state of register output 18.

If during the control process the points of the circuit associated with the number of the excited contact are detected, then these contacts will be recorded in the status register 20 and then through the second element OR 26 the third trigger 29 will be set to one, which through the third element 31 will prohibit passing the clock signal to the output of the sixth element And 39, which temporarily stops the operation of the control unit. At the same time, in block 8 of pre-processing of information from the output of the third trigger 29, the output register 12 will receive a signal enabling the excited contact number from the 6-circuit counter, the number of the associated contact from the 7-contact counter, and the number of the circuit analysis block that determined the next contact circuit. The preprocessing unit 8 compares the reference numbers of the circuit contacts coming from the input unit 10 with the received information and, if they do not correspond, displays the result on

block 11 printing. Next, from the information distribution unit 9, an OH command is received, the third trigger 29 is triggered, and the monitoring process continues until

until the first element of And 25 passes simultaneously the comparison signals, indicating that all the contacts of the mounting structure are checked. Thus, in the process of control unit 11

All circuits will be printed, links in which will be different from the reference ones. This concludes the operation of the device.

Thus, the introduction into the analysis unit of the first and second channel optoelectronic switches allows the monitoring of mounting structures that are under the voltage of their own voltage sources and have in their composition

active elements: resistors, semiconductors and relays, which expands the field of application for monitoring electronic equipment of the 4th and 5th generations while maintaining performance

control inherent in the prototype.

Fo rumula and 3 obre ts and A Device for controlling the assembly structures according to ed. St. Ns 1619205, characterized in that, in order to expand

application areas, the first and second channel rptoelectronic keys are entered into the circuit analysis unit, and the control inputs of the first channel keys are connected to the outputs of the polling address decoder,

the inputs of which are the first inputs of each of the n analysis blocks, and the output of the second channel switches are connected to the inputs of the receiving register block, the outputs of which are the outputs of each of the n blocks

analysis, the input of the first and first control input of the second keys of each channel are connected to each other and to the terminal for connecting the monitored mounting structure, and the outputs of the first channel keys of all n analysis units are connected to each other and to the first outputs of channel stable current sources, the second outputs of which are connected with the second control input of the second channel key.

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Claims (1)

Claim Device for monitoring mounting structures by ed. St. No. 1619205, characterized in that, in order to expand the scope of application, the first and second channel optoelectronic keys are introduced into the circuit analysis unit, the control inputs of the first channel keys being connected to the outputs of the polling address decoder, the inputs of which are the first inputs of each of η blocks analysis, and the outputs of the second channel keys are connected to the inputs of the receiving register block, the outputs of which are the outputs of each of the η analysis blocks, the input of the first and the first control input of the second keys of each channel are connected between and at a terminal for connection with a controlled mounting structure, and outputs first channel all keys η analysis units are connected to each other and with the first output channel constant current sources, * second outputs are connected to a second control input of the second channel key. Tig.Z her Hq1 Hq 12 Fi 2.4 Compiled by M. Khaenko Editor A. Lezhnina Tehred M. Morgenthal Corrector M. Pozho Order 534 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.