Automatic diagnosis method of automobile sound loudspeaker and antenna

Abstract

The invention relates to the technical field of automobile sound, in particular to an automatic diagnosis method of an automobile sound loudspeaker and an antenna. The automatic diagnosis method is characterized in that an automobile sound circuit is respectively provided with a detection circuit for monitoring the loudspeaker or the connection state of two ends of the antenna; the detection circuit outputs a signal to a microprocessor MCU; the MCU controls a display screen to display the detected sate after judging data; the detection circuit comprises a power amplifier, a voltage acquisition unit and a voltage comparison unit, wherein the power amplifier is used for driving the loudspeaker or the antenna, the voltage acquisition unit and the voltage comparison unit are successively connected to the automobile sound loudspeaker or two ends of the antenna, the power amplifier is provided with a diagnosis pin which is connected with the MCU, and the output end of the voltage comparisonunit is connected with the MCU. The diagnosis method of the invention is simple and visual, does not need other diagnosis equipment and greatly improves detection efficiency while lowering detection cost.

Description

technical field [0001] The invention relates to the technical field of car audio, in particular to an automatic diagnosis method for the horn and antenna of the car audio. Background technique [0002] At present, the operation of car audio diagnosis technology is complicated, and it is generally diagnosed through the bus, and special equipment such as a diagnostic instrument is required to perform the diagnosis, and the diagnosis cost is relatively high. For cars without a bus, diagnosis cannot be realized. Car stereos use antennas to receive external information and speakers to broadcast information. These two basic elements must be tested when they leave the factory. Due to the complexity of the detection method and relatively low efficiency, the entire production and operation process is limited. Contents of the invention [0003] The problem to be solved by the present invention is to provide a method for diagnosing the car audio horn and antenna conveniently and qui...

AI Technical Summary

Problems solved by technology

[0002] At present, the operation of car audio diagnosis technology is complicated, and it is generally diagnosed through the bus, and special equipment is needed to cooperate with it, such as a diagnostic instrument, and the diagnosis cost is relatively high

For cars without bus, it is impossible to realize diagnosis

Car stereos receive external information through antennas and broadcast information through speakers. These two basic elements must be tested when they leave the factory. Due to the complexity of the detection methods and relatively low efficiency, the entire production and operation process is limited.

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