SU1287186A1 - Device for checking electric wiring - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used to automatically check the correctness of the electrical installation of computer equipment and other electronic devices. The aim of the invention is to increase the reliability of the control. The goal is achieved by the fact that in the device containing the address counter 1, the switch 2, whose information inputs are connected to the sockets 3 of the control object 4, is the first element OR 5,. the first 6 and second 13 comparison circuits, an input unit, a display unit, including a fault indicator 9, a connector contact indicator 17 and a connector indicator 19, a contact address register 10, a connector address register 11, first and second decoders 12, 14 contact addresses, a group comparison circuits 15, decryptor 18 of the number of removal, elements And 20, 21, pulse generator 22, switch, Start button 23 of the mode of the actuating element (electrical tool) 24., amplifier 26. 2 Il. (L

Description

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The invention relates to automation and computer technology and can be used to automatically check for correct electrical installation of computer aids and other electronic devices.

The purpose of the invention is to increase the speed and reliability of the control.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 - control object (panel with connectors) with the display unit installed.

The device (Fig. 1) contains an address counter consisting of a group of counters 1 contact address, a commutator comprising a group of multiplexers 2, groups of information inputs of which are connected to the contacts (cheating pin) of sockets 3 of the control 4, the first element OR 5 and a comparison circuit 6, a power switching unit 7, an input block 8, a fault indicator 9, a register; 10 contact addresses, connector address register 11, first contact address decoder 12, second comparison circuit 13, second contact address decoder 14, group comparison circuit 15, connector contact indicator display elements 16 (connector pin diagrams), connector number decoder 18, elements 19 indication of the connector indicator, the first and second elements And 20 and 21, the generator 22 pulses, the switch (button) 23 mode of the actuating element 24, the second element ISH 25, the amplifier 26.

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input element OR 5 and comparison circuit 6.

The connector pin address from the register 10 is fed to the input of the decoder 12, where it is decrypted and the potential from the excited output through the corresponding comparison circuit 15 includes an indication element 16 on the connector mnemonic 17. The latter is a series of display elements, the location of which repeats the position geometry of the contacts (pins) in connector 3. Each contact of connector 3 corresponds to its own display element 16. Mnemonic scheme 17 is located in the field of view of the operator.

. So, the indicator 19 directly indicates to the operator the connector 3 of the next cheating, and the mnemonic diagram 17 indicates the cheating pin. Addressing the pin on which the output of the actuator is located (electrical installation tool 24) onto the mnemonic scheme 17 is performed as follows. At the address inputs of multiplexers 2, a constant search of the addresses generated by the counters 1 under the action of pulses from the generator 22 is performed. 21 and OR 25. Thus, continuous sequential polling is performed by the selected 35 multiplexer of 2 pins of connector 3 from the first to the last (multiplexer 2 is considered selected as It is present at the control input potential from the excited

20

25

thirty

The device operates as follows by exiting the decoder 18). In the moment

at once.

From the output of the block 8. In the register 11 the address of the connector is entered, and in the register 10 - the address of the pin (contact) of this connector on which the next cheat is to be performed. The address of the connector is decrypted by the decoder 18. The potential from the excited output of the decoder 18 ignites the display element 19, indicating to the operator the next jacking socket (Fig. 2). At the same time, the same potential at the control input of multiplexer 2 makes the selection of the specified connector 3. Now the signals from the pin of only this connector 3 can be transmitted through the inputs of the multiplexer 2 to its output, and then to

polling pin on which the end of grounded electric tool 24 is located, low potential: from this pin through input-output

45 of the multiplexer 2 is fed to the input of the comparison circuit 6 and the element OR 5. A low signal from the output OR 5 blocks the passage of pulses from the generator 22 through the element 21. The binary code recorded in this way in the counter 1 uniquely corresponds to the pin on which The end of the electrical installation tool is currently located. 24.State

The 5J of counter 1 is decrypted by a decoder 14 including the corresponding display element 16 of the connector mnemonic 17. Thus, on the connector mnemonic diagram simultaneously light312871

There are two display elements 16, corresponding to the setpoint pin and the current position pin of the electrical installation tool 24 on the selected connector 3. The operator on the mnemonic 17 one -5 temporarily sees the desired pin and the error, i.e. the distance from the end of the tool to the desired pin. At the time of the coincidence of the indication

is extinguished because with coincidence in

counter 1 and in register 10 are equal codes, which, having passed decoders 14 and 12, give a comparison in scheme 15 and, therefore, do not include display elements 16.

Comparison of the setpoint code (register 10) and the current position code of the electrical installation tool 24 (counter 1) is also performed in the comparison circuit 13. At the time of the comparison, a high potential is produced at the output of the comparison circuit 13, which through the element AND 20 enters the input of the amplifier 26, at the output of which the working voltage is produced for the operation of the twisting tool 24. The operator presses the button 23, which by the second contact closes the power supply circuit of the electromechanical assembly tool 24. The cheat is completed. This eliminates the possibility of false cheating.

In addition to the indicated blocking from the wrong choice, the wrap pin in the proposed device carries out the second blocking - from a technological installation defect caused by the conductor insulation being pressed on the sharp edge of the pin belonging to another circuit, as a result of which two independent circuits are short-circuited.

At the time of performing the wrapping, the device scans the mounting floor and collects all the addresses of the pins associated with the cheating pin. If among these addresses there are addresses that are not provided by the program. The indicator 9 lights up. Circuit malfunction. In this way, additional control of the entire assembly tul is carried out. This control is implemented as follows. When an operator installs an electrical tool 24 on the wrap-pin from the output of the element 20, a signal is generated that the decoder 18 translates into a state where all the tires are raised than providing

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It simultaneously selects all multiplexers 2. When the button 23 is pressed, it connects the output of the generator 22 to the input of the element OR 25 with the first contact. Under the action of pulses from the input OR 25, the addresses on the address buses of all the multiplexers are searched by 2 counters 1. This will scan ) the entire installation floor of the object 4 control. The scan is performed with a high frequency sufficient to pass through the entire field of the object 4 of the control while wrapping is done. If a pin is detected that is connected by galvanic coupling to the pin on which the winding is carried out, then the low potential from the body of the electrical installation tool 24 is through the multiplexer /. arrives at the input of the comparison circuit 6 and the element OR 5. At a signal from the extrude 5, block 8 outputs the address of the first point of the terminated circuit (the address of the connector and the contact in the connector). The drive to the first point of the circuit from the output of block 8 enters the input of the circuit 6 compare. The other inputs of the comparison circuit 6, from the output of the multiplexer 2 and counter 1, receive the address of the first detected point, which is galvanically connected to the wrap pin. In the case of a comparison, the scan of the mounting floor continues up to a second point, galvanically connected to the wrap point (pin). In a similar way, the validity of finding the second point in the chain to be mounted, etc. is checked.

In the case of non-comparison, the signal from the output of the comparison circuit turns on the fault indicator 9 of the circuit, and also stops the generator 22. On the mnemonic circuit 17, the address of the fault contact is displayed (from counter 1). The fault connector address is the low potential multiplexer number 2, which goes to a separate display unit (not shown).

Claims (1)

Invention Formula A device for controlling electrical installation, containing a switch, groups of information inputs of which are groups of inputs of a device for connecting groups of outputs of a control object, an actuator whose output is an output of a device for connection to a corresponding B5 code from a group of inputs of a control object, an input block that is connected with the output of the first element OR, the group of inputs of which is connected to the group of outputs of the switch, the address input connected to the video counter of the address counter, two circuits with The contact address register, the connector address register and the display unit, which includes a connector indicator, a connector contact indicator and a fault indicator, are different in that, in order to improve the speed and accuracy of the control, the decoder number of the connector, a group of comparison circuits, two decoders are entered into the device contacts, an actuator mode switch, a pulse generator, a second OR element, two AND elements and an amplifier, the output of the register of the address of the connector is connected to the first information input of the Deshi the slot number of the connector, the second information input and the output group of which are connected respectively to the output of the first element I, the input group of the connector indicator and the group of control inputs of the switch, a group of outputs connected to the first information input of the first comparison circuit, the second information input of which is connected to the output of the block input, input register address of the connector and the input register W sh five 0 five D five address of the contact, the output connected to the input of the first contact decoder and the first information input. the house of the second comparison circuit, the second information input of which is connected to the input of the second, contact decoder, the third information input of the first comparison circuit and the output of the address counter, the input connected to the output of the second OR element, the first and second inputs of which are connected respectively to the output of the second And element and the first the output of the actuator mode switch, the second output of which is connected to the enable input of the actuator, and the first and second inputs are respectively connected to the generator outputs and The pulses and the amplifier, the input of the first element I connected to the output, whose direct input is connected to the output of the second comparison circuit, and the inverse input - with the output of the first SH and the first input of the second element And, the second input of the pulse generator connected to with the output of the first comparison circuit and the input of the fault indicator, the group of inputs of the connector contact indicator is connected to the outputs of the comparison circuit of the group, the first and second inputs of which are connected respectively to the output groups of the first and second decoders contact information input actuator connected to zero potential bus device. I