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Vehicular audio system quiescent current automatic test system and method

An automated testing, static current technology, applied in electrical components and other directions, can solve the problems of post-processing and analysis of static current data, lack of recording means for static current, cumbersome and inconvenient operation, etc., to improve convenience, light weight, and convenience. The effect of installation

Active Publication Date: 2018-07-24
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, because the detection method of the quiescent current of the car audio in the real car is still some traditional technical means, it is to use a multimeter to measure the quiescent current value of the main unit on the real car after sleep through the manual recording method, but it can only be read For the quiescent current value at a certain moment, if it is necessary to completely record the quiescent current change value of the car audio when the car is placed for a long time, it will take a long time and the efficiency is low; Power supply, cumbersome and inconvenient operation
The traditional quiescent current test only records the quiescent current value. When the amount of data is huge, it is more troublesome to analyze and process later. It is difficult to count the quiescent current exceeding the standard value and the time period when the quiescent current is high
Therefore, a new static current detection method is needed, which can not only solve the problem of lack of effective recording means for monitoring the static current of the car audio for a long time in the real car, but also make it difficult to post-process and analyze the collected static current data. The real vehicle static current test device is convenient to use

Method used

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Experimental program
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Effect test

Embodiment 1

[0028] A vehicle audio static current automatic test system, including Arduino single-chip microcomputer, current sensor module, computer information processing module, clock module and SD module; Arduino single-chip microcomputer is used to obtain the required information after the sensor perceives the environment, and then uses the program control device, The current sensor module is used to sense the information of the measured current, and can convert the current information into the required information output. The computer information processing module is used to obtain, analyze the information and display the results. The clock module allows the The single-chip microcomputer does corresponding work according to the clock, and the SD module is used to obtain and save the required information.

[0029] The Arduino microcontroller is connected to the clock module, the current sensor and the SD module, and the current sensor and the clock module are connected to the SD modul...

Embodiment 2

[0034] A method for automatic testing of vehicle audio quiescent current, characterized in that the information includes the following steps:

[0035] S1. Acquisition and conversion of current data: when starting to detect the static current, collect the static current information of the car audio through the current sensor, and transmit the information to the Arduino microcontroller for processing, and convert it into a current value;

[0036] S2. Acquisition of time stamp: use the Arduino microcontroller to control the clock module, so that when it obtains the current information, the system time of the module is obtained synchronously;

[0037] S3. Current marking: Arduino MCU sets the maximum allowable threshold and current warning peak value according to the magnitude of the quiescent current, and writes the data into the SD card after marking the data. The quiescent current value will be judged and marked through the following steps:

[0038] a. If the quiescent current ...

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Abstract

The invention discloses a vehicular audio system quiescent current automatic test system and a vehicular audio system quiescent current automatic test method. The system comprises a single chip microcomputer, a current sensor module, a computer information processing module, a clock module and an SD module. The current sensor module and the clock module are controlled via a program in the single chip microcomputer to acquire current data, a timestamp of corresponding current acquisition time and the like, and the current data, the timestamp and the like are transmitted to the SD module for storing, and at last, the current data, the timestamp and the like are analyzed by the computer information processing module to acquire needed information feedback. The system is small in whole size, light in weight and convenient to carry; the device system is powered by a battery, the external power supply is not needed, the convenience is improved, and the recording time is synchronized, so thatresearch and development engineers are facilitated to analyze reasons.

Description

technical field [0001] The invention relates to the field of quiescent current detection, in particular to an automatic quiescent current testing system and method for a vehicle audio system. Background technique [0002] In the past, because the detection method of the quiescent current of the car audio in the real car is still some traditional technical means, it is to use a multimeter to measure the quiescent current value of the main unit on the real car after sleep through the manual recording method, but it can only be read For the quiescent current value at a certain moment, if it is necessary to completely record the quiescent current change value of the car audio when the car is placed for a long time, it will take a long time and the efficiency is low; Power supply, complicated and inconvenient operation. The traditional quiescent current test only records the quiescent current value. When the amount of data is huge, it is more troublesome to analyze and process l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00
CPCH04R29/001
Inventor 李文进赵国锋刘昶
Owner HUIZHOU DESAY SV AUTOMOTIVE
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