SU443337A1 - Device for checking electrical installation - Google Patents

Description

one

The present invention relates to the field of computer technology and can be used, for example, in enterprises manufacturing electronic equipment, computers and computer equipment.

A device for checking electrical installation is known, comprising registers, information input and output units, unit y1: directions, comparison circuit, logic circuits, pulse generator, and galvanic coupling recorder.

A disadvantage of the known device is its complexity, due to the fact that the electroplating recorder has two co-switching keys for each contact of the tested product.

To simplify the device, it contains a buffer register and a chugness analysis block, the first and second outputs of which are connected to the second inputs of even and odd numbers of contacts, its third output is connected to the third input of the control unit, and the parity analysis input is connected to the output of the buffer register whose input is connected to the output of the input block information.

FIG. 1 shows a block diagram of the device; in fig. 2, as an example, is shown some electrical circuit connected

to the registrars of galvanic couplings.

The block diagram of the device contains the recorder 1 galvanic connections, consisting of

two matrices 2 and 3, to which the odd and even contacts of the tested product are connected, respectively; the outputs of register 4 of odd numbers and register 5 of even numbers are connected to the inputs of matrices 2 and 3 and to the inputs of output block 6, the output of which is connected to the input of control block 7, the inputs of which have outputs of register 5 of even numbers, register 4 odd numbers, registrar 1 galvanic couplings, parity analysis unit 8 and input unit 9; the outputs of the control block 7 are fed to the register 5 even numbers, the register 4 odd numbers, the input block 9, the output block 6 and the buffer register 10, to the second input of which the output is connected

block 9 input, and the output of the buffer register 10 enters the block 8 parity, the outputs of which are fed to the inputs of the register 5 even numbers and register 4 odd numbers. All contacts to be tested are numbered with natural numbers. The numbers of all contacts to be checked are recorded on a carrier (for example, a punched tape), and the numbers of the contacts belonging to the same electrical circuit are recorded one

for others in order of their growth. room

The last contact entering this electrical circuit is marked with a sign “end of circuit.

The operation of the device consider the example of a chain (Fig. 2).

The recording on the carrier, with respect to the price shown, will be as follows: kl, k3, / e4, / g5 "end of the chain.

From the input block 9, the number of the first contact of the checked value is entered into the buffer register 10, and also through the parity analysis block 8 into the register of 5 even numbers and the register of 4 odd numbers, depending on the contents of the lower bit of the first contact of the value ( i.e. whether this number is even or odd, one will be added to the low order of the register 5 even numbers or the register 4 odd numbers. In this example, if the number of the first contact is equal to one (odd), then one will be added to the contents of the register 5. even numbers and there the number will be written "2. In this case, the signal from the recorder 1 of the galvanic connection will not be received, since the contact with the k2 number is not included in the tested electrical circuit. The control unit 7 changes the state of the register of 5 even numbers by adding K to the contents of this register of the number "+ 2 (using the binary-decimal number system, for example, this can be done by changing the state of the second low-order digit of the 5 even numbers). In the register of 5 even numbers the number “4. The registrar 1 of galvanic communications will receive a signal about the presence of a connection between contacts k and X4, according to this signal from the input block 9 in the buffer register 10 the number of the next contact of the circuit (i.e. / d3) is entered; since this is an odd number, it will be recorded in the register 8 of odd numbers through the parity block 8. The signaling from the recorder 1 of the galvanic connections will indicate that there is no break in the connection between contacts k3 and M. In the same way, the presence of connections between all the contacts of this circuit is checked.

When entering the contact number from the input block 9, which is marked with the "end of the circuit (in this example, this is H5), the connection between contacts M and k5 will be checked. Since the Sign "end of value" is marked by a contact, {nodding odd number, then the contents of register 4 odd numbers will be increased by adding a number, and the failure of signals from the galvanic communications recorder 1 will be a sign of the absence of spurious connections with all odd contacts having numbers greater than 5. At the same time, the last even number is recorded in the register of 5 even numbers, i.e. / r4, and in the buffer register 10 there is a contact number marked with the sign "end of the chain, i.e. 5.

When the contents of register 5 odd numbers reach the maximum value.

the information recorded by the Buffer buffer perncT.ie 10 is entered into the register of 4 odd numbers (since 5 was recorded in the buffer register 10). Thereafter, the contents of the register of 5 even numbers will increase by the number "+2. Thus, the absence of false connections of this circuit with contacts having even numbers greater than in t / r4 is checked. If the registrar reaches 5 even numbers, the maximum value in the absence of signals from the registrar of galvanic communications will be a sign of the correctness of the tested electric circuit, and the device will switch to checking the next circuit.

15 The absence of a signal from the recorder 1 of the gal1 anicic links when entering the number of the next checked circuit contact is a sign of an open circuit, and the arrival of a signal from the recorder 1 of the electroplated communications when

The verification of contacts that are numbered larger than the number of the contact, indicated by the sign "end of the circuit, is evidence of a false connection of the circuit under test. Error information in the circuit is recorded in

25 output unit and the device switches to check the next circuit.

With this principle of operation of the device, the possibility of the presence of circuits in which the control of breaks is difficult, i.e. circuits containing

30 only even or only odd numbers. However, with a rational choice of connecting the monitored installation or using unoccupied contacts, it is possible to provide an O35 for the development of wiring diagrams of the product, facilitating the verification of the installation. For example, if there is a circuit consisting only of contacts with even numbers iH, then this circuit can be connected to one of the unused odd contacts, which does not reflect

0 at work.

Thus, the connection of contacts with even numbers to one matrix of the recorder 1 electroplated communications, and contacts with odd numbers to the other 5 and the use of separate checking of even and odd contacts allows to increase the number of checked contacts by 2 times. The same volume of the recorder 1 electroplating, the equipment of which constitutes a significant part of the entire device for testing electrical installation.

Subject invention

A device for checking electrical installation 5, containing a galvanic communications recorder, the information inputs of which are connected to the corresponding even and odd contacts of the product under test, the registers of even and odd contact numbers, the first outputs of which are connected to the address inputs of the galvanic connection recorder and outputs of the output unit information, the second outputs of the registers of even and odd numbers of contacts are connected respectively to the first and second inputs of the block

management associated with the input and output information blocks, with the first inputs of the registers of even and odd numbers of contacts and the output of a galvanic communications recorder, characterized in that, in order to simplify the device, it. contains b; ferrous register and parity analysis block, the first and second outputs of which are connected respectively to the second inputs of even and odd numbers of contacts, its third output is connected to the third input of the control unit, and the input of the parity analysis unit is connected to the output of the floating register, whose input connected to the output of the input block information.