Data acquisition and fault diagnosis terminal for vehicle

A technology for fault diagnosis and vehicle data, applied in electrical testing/monitoring, etc., can solve the problems of cluttered wiring harness of the whole vehicle, difficult to monitor in real time whether the driver's operation meets the requirements of the specification, complicated and cumbersome installation, etc.

Inactive Publication Date: 2012-08-01
TIANJIN FAW XIALI AUTOMOBILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, most of the traditional vehicle-mounted terminals use external sensors to collect data in the vehicle, which leads to complicated and cumbersome installation and messy vehicle wiring harness.
[0003] Chinese patent CN 2864823 Y discloses a vehicle data recorder, the recorder uses Flash Memory (flash memory), can only record 16M data, the storage capacity is small, and cannot meet the needs
[0005] Traditional on-board road test monitoring equipment is difficult to monitor in real time whether the driver's operation during the road test meets the specification requirements

Method used

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  • Data acquisition and fault diagnosis terminal for vehicle
  • Data acquisition and fault diagnosis terminal for vehicle
  • Data acquisition and fault diagnosis terminal for vehicle

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Embodiment Construction

[0016] The vehicle data collection and fault diagnosis terminal of the present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

[0017] figure 1 It is a structural block diagram of the vehicle data acquisition and fault diagnosis terminal of the present invention. Such as figure 1 As shown, the vehicle data acquisition and fault diagnosis terminal of the present invention includes a power management unit, a single-chip microcomputer core control unit, a GPS positioning unit, a GPRS wireless communication unit, a clock unit, a voice unit, a storage unit, a key unit, an LCD display unit, and an interface unit. Wherein, the power management unit provides 5V and 3.3V working power for the above terminals. The core control unit of the one-chip computer adopts the 16-bit MC9S12XDP512MAG one-chip computer of Freescale. The single-chip core control unit stores various types of engine information, and has built-in communicat...

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Abstract

The invention discloses a data acquisition and fault diagnosis terminal for a vehicle. The terminal comprises a power management unit, an SCM (single chip machine) core control unit, a clock unit, a voice unit, a storage unit, a push-button unit, an LCD (liquid crystal display) unit and an interface unit. The terminal adopts a CAN bus and a K-line to carry out data acquisition in the vehicle, and an IO(input-output) interface is reserved to acquire the signals acquired by the CAN bus and the K line so as to enable a controller to acquire more useful signals in the vehicle. The acquired data can be stored by an SD (secure digital) card or USB (universal serial bus), and also can be transmitted to a remote server through 3G (3rd generation telecommunication) / GPRS (general packet radio service) in real time to be stored so as to realize the large capacity data storage. The terminal can automatically recognize engine types or part types of a plurality of companies. A tester can transmit GPS (global positioning system) positioning information back through a GPRS wireless communication unit arranged in the terminal so as to monitor road test conditions in real time by a far-end server.

Description

technical field [0001] The invention relates to a vehicle data acquisition and fault diagnosis equipment, which is used to obtain the output of various on-board sensors installed in the vehicle from the OBD-II (On-Board Diagnosis-II, second-generation on-board diagnostic system) interface of the vehicle Data and vehicle fault code data, and send road test data to the remote server in real time. Background technique [0002] There are many deficiencies in the existing vehicle data collection terminals. First of all, most of the traditional vehicle-mounted terminals use external sensors to collect data in the vehicle, which leads to complicated and cumbersome installation and messy vehicle wiring harness. [0003] Chinese patent CN 2864823 Y discloses a vehicle data recorder. The recorder uses Flash Memory (flash memory), which can only record 16M data, and the storage capacity is small, which cannot meet the needs. [0004] The diagnostic range of traditional on-board diagn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 马如斌张群郭琳季德斌张晓明高琳
Owner TIANJIN FAW XIALI AUTOMOBILE
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