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Method for wirelessly collecting vehicle fault information by using screen brightness

A technology for wireless collection and fault information, applied in vehicle testing, machine/structural component testing, vehicle components, etc., to solve problems such as no screen output, inconvenient access to SD cards or U disks, etc.

Active Publication Date: 2021-08-06
FAURECIA COAGENT ELECTRONICS S & T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is an occasion where the machine cannot be disassembled and connected to the debugging line, and there may be no content output on the screen at all. There is no OBD device, and it is inconvenient to connect SD cards or U disks. In this way, the conventional method of collecting machine faults will not come in handy. We are eager to have a new type of fault information collection method, which can collect vehicle fault information

Method used

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  • Method for wirelessly collecting vehicle fault information by using screen brightness
  • Method for wirelessly collecting vehicle fault information by using screen brightness
  • Method for wirelessly collecting vehicle fault information by using screen brightness

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Embodiment Construction

[0025] In order to understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Information can be encoded, 1bit information can be expressed as 0 or 1, 8bit is a byte. The brightness of the backlight has two states of bright and dark. We can simply understand that bright is 1 and dark is 0. In such a state, 1 bit information can be expressed. We keep on and off, and 8 bits can express one byte of information.

[0027] In order to ensure the accuracy, integrity, and validity of information, we must define a communication protocol that both the sender and the receiver follow.

[0028] Information standard: bright screen means 1, dark screen means 0

[0029] Communication baud rate: According to the characteristics of turning on and off the screen brightness, and the mobile phone software can accurately identify the two states of the screen bright and the scre...

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Abstract

The present invention discloses a method for wirelessly collecting fault information of a car machine by using screen brightness. The brightness change caused by the continuous opening and closing of the screen backlight is used to send out the fault information of the car machine, and the fault information is collected and recorded by a smart phone. A supplement to the collection of vehicle fault information, this invention is convenient and practical in specific scenarios.

Description

technical field [0001] The technology relates to a method for collecting and recording vehicle fault codes, in particular to a method for wirelessly collecting vehicle fault information by using screen brightness. Background technique [0002] The car multimedia host, as a comprehensive and complex car entertainment system, generally has a (MCU+APU) structure. MCU refers to the microprocessor, which mainly controls the power supply part and prepares the necessary peripheral conditions for APU startup. After everything is ready, it supplies power to the APU, and then the APU starts. Under this architecture, the MCU needs to be able to turn on or off the backlight of the display. The work of the MCU is somewhat similar to our computer BIOS, which is responsible for the most basic functions of system startup. APU here refers to a processing unit that can run an operating system (Android, QNX, linux, etc.) and provide various multimedia services. Various complex programs run ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/00G05B19/042B60R16/02H04M1/72403H04M1/72448H04M1/72406
CPCB60R16/02G01M17/00G05B19/0421G05B19/0428H04M1/72403H04M1/72406H04M1/72448
Inventor 陶福兆顾焰甘茂煌
Owner FAURECIA COAGENT ELECTRONICS S & T CO LTD