SU805211A1 - Device for determination of wire number in a harness - Google Patents

Description

pulse maker connected by the first output to the input of the decoder, the second output through the second deflector to the inputs of the controlled guta, the second output of the control unit is connected to the input of the power supply unit, its first, second and third inputs with the corresponding outputs of the amplifier, generator and comparison unit.

The drawing shows a block diagram of the device.

The device for determining the wire number of the monitored harness 1 contains a control block 2, an amplifier 3, a unit 4 operating modes, a generator 5, a wire number 6 sensor, a comparison block 7, a power block 8, an indication block 9, a decoder 10, a pulse counter 11, the second the decoder 12 and the contact element 13.

A device for determining the harness number is as follows.

The way.

Unit 4 operating modes affects the input of control unit 2, sets one of the following operating modes: harness wire number determination mode, wire number search mode.

In the wire number determination mode, the generator 5 generates counting pulses, which are fed through the control unit 2 to the input of the counter 11 pulses. Pulse counter 11 generates a sequence of binary-decimal codes on the first and second outputs, which posits to the inputs of the decoder 12 and the decoder 10. The decoder 12 converts the binary-decimal code of the counter 11 to the unitary code and sets the inputs of the monitored harness 1 to the level of logical zero.

 The operator connects by hand or through some other contact element 1.4ent 13 harness wire 1, number

which it is necessary to determine to the input of the amplifier 3, intended to form and amplify the signal of the logical zero, coming through the harness 1 and the contact element 13 from the decoder 12.

The amplifier 3, when a logical zero signal is input, outputs a control signal at the output, which is fed to the input of control unit 2 and stops the supply of pulses to the start of counter 11 and acts on block 8, allowing power to be applied to block 9

Block 9 highlights the harness wire number, contacting him at this moment through the contact element, such as the operator's hand, with the input of amplifier 3. The wire number is read from the output of counter 11 and is converted by decoder 10 into the code required for block 9.

In the search mode for the wire with the specified number, setting the wire number 6

sets the number of the wire to be refunded in binary-decimal code to the input of the block 7. The contact element 13 connects alternately the wires of the monitored harness to the input of the amplifier 3.

Unit 7 compares, for each wire being unwound, the coded wire number arriving from setpoint 6 and the current numbers coming from the output of the decoder 10, and inputting the input of unit 2 a signal at the moment of their coincidence. If at the same moment of time at the input of block 2, which is connected with the output of amplifier 3, the enabling signal, block 2 stops the impulses to enter the counter 11 and outputs a razraivaet signal to the input of block 8. Block 8 supplies power to the input of block 9, which indicates the number of the requested wire, indicating that the requested wire is connected to the input of the contact element and found.

Thus, by introducing the counter 11, the decoder 12 and the control unit 2, it is possible to quickly determine the wire number of the harness and search for the wire with the specified number. In the case of EOM, no systematic adjustment of the units of the device is required, and therefore the results are highly reliable throughout the entire service life.

Claims (2)

1. Wire harness tester {TPG-1). Information sheet WIMID977, 77-166 2. Patent OTA 3740644, cl. 324-66, 1973 (prototype).