SU1464175A1 - Apparatus for checking electric wiring - Google Patents

Abstract

The invention relates to automation and computing, can be used to verify the right. the willows of the electrical installation. The aim of the invention is to improve the performance of electrical installation control. The set target is achieved by the fact that the device containing the contact address counter, switch, element Ш11, power switching unit, input block, contact address register, connector address register, two contact address decoder, group of comparison circuits, comparison circuit, indicators, the connector mimic diagram, the connector number decoder, the connector position indicator block, the actuator (electrical tool), the addresses of the current contact and the impulse rotor (one-shot) are entered. 2 Il.

Description

one

The invention relates to automation and computing and can be used to verify the correctness of the electrical installation of computer aids and other electronic devices.

The aim of the invention is to improve the performance of electrical installation control.

FIG. 1 is a block diagram of the device; in Fig.2 - control object (panel with connectors) with an installed display unit.

The device contains counters 1 contact addresses, the outputs of which are connected to the address inputs of multiplexers 2 of the switch, whose information inputs through the connecting block (not shown) are connected to the sockets 3 of the object 4 control. The number of information inputs of one multiplexer 2 corresponds to the number of contacts (wrap pins) in connector 3 of object 4 of the control. The output of each multiplexer 2 is connected to the input of the element OR 5 and to the first inputs of the comparison circuit 6 of the power switching unit 7, the second and third inputs of which are connected to the output of the input unit 8. The output of the comparison circuit 6 is connected to the fault indicator 9. The output of the input unit 8 is also connected to the inputs of the register of the contact address and the register of the connector address 11. The output of the register U is connected to the first decoder of 12 contacts and to the inputs of the comparison circuit 13, the other inputs of which

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connected to the outputs of counter 1 The outputs of the decoders 12 and 14 are connected to the inputs of the comparison circuit 15, the outputs of which are connected to the indicators 16 of the mimic 17 connectors. The outputs of the register 11 are connected to the inputs of the decoder 18 of the number of the connector, the outputs of which are connected to the block 19 of the indicators of the position of the connector and to the control inputs of the multiplexers

2, the connector position actuators 19 are located in close proximity to the indicated connectors 3, (FIG. 2) for the computer panel 4. The output of the elements of OR 5 and the comparison circuit 13 are connected to the inputs of the element AND 20, the output of OR 5 is also connected to the input of the input unit 8 and the element 21, the second input of which is connected to the output of the pulse generator 22 and through the first contact of the actuator switch 23 (wiring tool ) 24 - with the input of the element OR 25. The output of the element AND 20 is connected to the control input of the decoder 18 and to the input of the amplifier 26. The information inputs of the register 27 address of the current contact are connected to the outputs of the counter 1, the output of the pulse former (simultaneously oscillator) 28 is connected to the reset input of the register 27 te1suschego contact addresses,

The device works as follows.

From the output of block 8 to register 11, the address of the connector is entered, and in register 10 - the address of the pin (contact) of this connector, on which it is necessary to tighten the thread of the next wrap.

The address of the connector is decrypted by the decoder 18, Potential from the excited output of the decoder 18 lights up the indicator 19, indicating to the operator the next jack to wrap (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 pins of only this connector 3 can be transmitted through the inputs of multiplexer 2 to its output5 and then to the input of the OR 5 element and the comparison circuit 6,

A, the connector cres pin 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 comparison circuit 15 turns on the cyclic 16 on

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mnemonic scheme 17, Mnemonic-. This circuit 17 is a series of indicators whose location repeats the position of the contacts (pins) in the connector. Each pin of connector 3 has its own indicator. Mnemonic scheme 17 is located in the field of view of the operator.

An indicator 19 directly indicates to the operator the next cheat connector, and the mnemonic scheme 17 indicates the cheat pin.

5 The address of the pin, on which the end of the electrical installation tool 24 is located, is displayed on the mnemonic circuit 17 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 output through the open element AND 21 and OR 25 is performed. Thus,

5 performs a continuous sequential polling of the selected 2 pin pins of the connector 3 from the first to the last (the multiplexer is considered to be selected, which has a potential from the excited output of the decoder 18 at the control input), At the time of polling the pin on which the end of the grounded terminal is located electrical installation tool 24, low potential from this pin through multiplexer 2 is fed to the input of comparison circuit 6 and element OR 5. From output OR 5, a low signal blocks the passage of pulses through element 21 of the generator Ator 22, The binary code recorded in this way in the counter 1 uniquely corresponds to the address of the pin on which the end of the electrical installation tool 24 is currently located.

The state of counter 1 by a low signal from the output of the element OR 5 is rewritten into register 27, the state of register 27 is decrypted by decoder 14, which includes the indicator 16 of connector mnemonic circuit 17. Thus, on the connector mnemonic, the light simultaneously has two indicators 16, corresponding to the set pin and

g pin of the current position of the electrical installation tool 24 on the selected connector 3, the operator at the same time on the mimic 17 sees the target (the desired pin) and the mismatch, i.e.

five

five

0

the distance from the end of the tool to the desired pin (target). Wire the end of the tool on the pin m, the operator pulls together the indicator of the position of the end of the tool with the target. At the moment of coincidence, the indications go out, since if there is a coincidence in counter 1 and in register 10, there will be equal codes that, having passed decoders 14 and 12, give comparison on diagram 15 and, therefore, do not include indicators 16,

To eliminate the flickering of the indicators 16, reflecting the current position of the tip of the electrical installation tool, at the moments of transition from one pin to another, when contact with the previous one is temporarily lost and contact with the next pin is not made, and also to avoid chattering, the register 27, which stores the address of the current connector pin and the transitional moments of movement of the tool tip between the pins. The one-shot 28 sets the time | 1 insensitivity zone to contact loss. When the tool tip 24 loses contact with the connector pin at the output of OR 5, a high potential appears that triggers the single-vibrator 28. If the contact loss time is shorter than the pulse T generated by the one-vibrator, then when contact is restored with the pin at the output of OR 5 The low level with which the single-oscillator is stopped. By the same low level, the state of the counter 1 is overwritten in the register 27. This can be either a new state (address) when the end of the tool 24 goes to a new pin, or the same oh when bounce

In the first case, the address of the flicker-free pin changes to a new one, in the second case (bounce), the address is stored in register 27, and therefore, it is displayed without flicker on the corresponding indicator 16 of connector mimic 17.

If the loss of contact of the instrument with a pin longer than T (the operator loads the wire into the instrument, or stops working), then after finishing the one-shot 28 and there is no low potential at its input from the output of the element OR 5 at the output of the one-shot 28 - the impulse by which register 27 is reset to the initial, zero state is processed

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Claims (1)

condition. The indication of the position of the end of the electrical installation tool on the mounting field is indicated by the connector mimic 17 and goes out. Invention Formula A device for controlling electrical installation, containing an address counter, the counting input and the output of which are connected respectively to the first output of the power switching unit and to the address input of the switch, whose information input group is the input group of the device to be connected to the output group of the object being monitored, and the output group is connected to a group of inputs of the 1-SHI element and a group of information inputs of the power switching unit; the first and second information inputs and the first and second synchronization inputs to Respectively, they are connected respectively to the outputs of the address counter, the input block, the OR element and the comparison circuit, and the second and third outputs, respectively, to the control input of the decoder of the connector number and the input of the actuating element whose probe is the output of the device control, a group of outputs of the remote connector number is connected to the group of inputs of the block of position indicators of the connector and the group of control inputs of the switch, the output of the OR element is connected to the input of the input block, the output of the To the inputs of the contact address register and the address register of the connector, the output of which is connected to the information input of the decoder of the connector number, the first and second inputs of the comparison circuit are connected respectively to the output of the address counter and the output of the contact address register, the group of inputs of the connector mimic circuit indicators groups, the first and second inputs of which are connected respectively to the input groups of the first and second contact decoder, the input of the first contact decoder is connected to the output of the address register and contacts, characterized in that, in order povsh1eni performance monitoring, introduced into the device address register of current contact and the pulse generator, wherein the synchrotron input address register tekuttsego kontak71464175 This is connected to the input of the forcing contact, the information input of the Pulse and the output of the UTI element, the output and output of the connected corresponding pulse forserter pulse is connected but to the output of the address counter and the input of the reset of the address register of the second contact decoder.  w ha w 1