Vehicular harness on-off detection equipment
A technology of on-off detection and equipment, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of missed detection, substandard products, error-prone, etc., to improve detection efficiency, fast detection speed, and reduce error rate. Effect
Inactive Publication Date: 2012-07-04
重庆三祥汽车电控系统有限公司
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Problems solved by technology
The above-mentioned detection mainly has the following shortcomings: 1. Low efficiency: the inspection requires the cooperation of 2 personnel, and the work efficiency is slow. The average detection time for one wire harness is 1 to 2 minutes; , which may lead to missed inspection, and the unqualified product is judged as qualified; or wrong inspection, the qualified product is judged as unqualified; 3. The terminals at both ends of the wire harness and the contact of the sheath cannot be detected: the two ends of the wire harness are sheathed The connector is connected to the automobile instrument harness in this way, and this inspection method cannot detect whether the contact of the harness connector is good
Method used
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] 1. Hardware implementation
[0021] figure 1 It is the circuit block diagram of the on-off detection equipment of the vehicle wiring harness, as shown in the figure. The on-off detection equipment of the vehicle wiring harness includes a single-chip microcomputer, a buzzer, a decoder, a voltage amplifier circuit, a 20-way switch circuit, a 20-way voltage divider circuit, a 20-way voltage acquisition circuit, 20 light-emitting diodes (that is, indicator lights) and for control The single-chip microcomputer receives the button for inquiring the on-off command of the wiring harness.
[0022] The buzzer is connected to the single-chip computer; the signal output terminal of the single-chip computer is connected with the decoder; the signal output terminal of the decoder is connected with the input terminal of the voltage amplif...
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The invention discloses vehicular harness on-off detection equipment which comprises a singlechip, a buzzer, a decoder, a voltage amplifying circuit, a divider circuit, a switching circuit and a voltage acquisition circuit. The buzzer is connected to the singlechip the signal output end of which is connected with the decoder, the signal output end of the decoder is connected with the input end ofthe voltage amplifying circuit, one path of the output end of the voltage amplifying circuit is connected with a matched connector (I) of a vehicular harness terminal through a triode Q3, and the other path is connected with a matched connector (II) of the vehicular harness terminal sequentially through the divider circuit, a triode Q4 and an LED D3. The vehicular harness on-off detection equipment improves the detection efficiency, lightens the amount of labor, has high detection speed and reduced error rate and can be used for carrying out all the detection including the contact of the connects at both ends of the vehicular harness.
Description
Technical field [0001] The present invention involves a device for the vehicle wire beam test. Background technique [0002] The car wire beam (car signal rotor beam) is used to collect signals such as car speed and engine speed.In order to detect whether the 20 guide lines in the vehicle carrier beam have poor contact, missed, and error errors, the inspectors should check the production line beam for inspection. [0003] At present, the general tools for vehicle wiring are usually used for universal meters.The inspection method is to contact the terminal 1 to 20 of the two ends of the vehicle carrier beam with the universal surface red and black surface pen to measure the interruption of the 20 guidelines to test whether there is a missed and error -connected phenomenon.The above tests are as follows: 1. Low efficiency: The inspection requires two personnel to cooperate, and the work efficiency is slow. The average detection time for 1 to 2 minutes is 1 to 2 minutes; second, the...
Claims
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IPC IPC(8): G01R31/02
Inventor 夏翼
Owner 重庆三祥汽车电控系统有限公司