Test method of board-level tpms launch module batch test system

Abstract

The invention relates to a board-level TPMS transmitting module batch testing system, which is characterized by comprising a programmer, a shielding box, a wireless signal analyzer, a wireless trigger and a microprocessor. The high-sensitivity probes in the corresponding pinholes of the transmitting module and the power load pins converge on the probe board. The probe board is connected to the multi-cut switch in the shielding box. The programmer and wireless signal analyzer are located outside the shielding box. The device is connected to the program programming port of the TPMS transmitting module through the programming thimble, the wireless signal analyzer is connected to the probe board, the wireless trigger is located in the shielding box, and is connected to the external microprocessor, and the TPMS transmitting module is connected to the external microprocessor through the power load pin. It is connected with the external power-on controller, and the power-on controller is connected with the microprocessor.

Description

technical field [0001] The invention relates to the technical field of automobile tire pressure monitoring, in particular to a board-level TPMS emission module batch testing system and a testing method thereof in the TPMS production process. Background technique [0002] As people pay more and more attention to car safety, tire pressure monitoring is getting more and more attention. The application of TPMS in various automobiles is also increasing. With the extensive use of TPMS products in real life, in the production process, a complete TPMS system is a receiver equipped with multiple transmitters. The transmitter is determined by the number of tires included in the target car body, then In the production process, the TPMS transmitter consists of multiple sensitive components. In order to ensure the yield rate of the product and save unnecessary waste in the subsequent processes, we need a set of board-level TPMS transmitter test modules to help us identify those componen...

AI Technical Summary

Problems solved by technology

A car usually needs 4 TPMS transmitter modules and a receiver to form a complete system. Usually electronic products, due to mass production, the components are small, and the detection method is random inspection. TPMS belongs to safety automotive electronics, the best The current detection method is full detection, which brings huge detection pressure. Usually, a TPMS board-level module test is based on a simple shipment calculation. If 100,000 sets of systems are produced in a month, then the board-level test needs Test 400,000 times, one test module, the usual test process is, after burning externally, put the battery in the test shielding box, trigger the wireless transmission process through an external trigger, record the test results, and calibrate whether the product is good or not. For good products, enter the next step, the front and back process may take about 30 seconds to 5 minutes, and the real pure test process may be about 5 to 10 seconds later, which is a huge market for the test volume of 400,000 a month Once the output rises again, it will bring huge pressure on human cost and material resources.

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