CAN bus-bluetooth intelligent network bridge

A CAN bus, intelligent technology, applied in the field of communication, to achieve the effect of improving the convenience of operation and expanding the use distance

Inactive Publication Date: 2010-11-17
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantage that the existing automotive diagnostic instrument must be connected to the automotive diagnostic interface socket through a wire harness, and provide an intelligent network bridge that can realize wireless data transmission between the CAN bus and the automotive diagnostic instrument

Method used

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  • CAN bus-bluetooth intelligent network bridge
  • CAN bus-bluetooth intelligent network bridge
  • CAN bus-bluetooth intelligent network bridge

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Embodiment Construction

[0020] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0021] as attached figure 1 Shown, a kind of CAN bus-bluetooth intelligent network bridge is characterized in that: comprise main control unit, power supply unit, bluetooth module and CAN bus interface; Power supply unit is connected with main control unit, bluetooth module and CAN bus interface respectively and provides Their respective required power supply voltage; the main control unit is respectively connected with the bluetooth module and the CAN bus interface, and can transmit data between each other.

[0022] In this specific embodiment, main control unit uses the microprocessor that model is PIC18F2480, and this microprocessor has CAN controller and serial port module, wherein the receiving pin of CAN controller is connected with the RxD end of CAN bus interface driver chip U0, The sending pin is connected to the TxD end of the CAN bus interfa...

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PUM

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Abstract

The invention discloses a CAN bus-bluetooth intelligent network bridge, relating to the field of communication. The CAN bus-bluetooth intelligent network bridge of the invention comprises a main control unit, a power supply unit, a bluetooth module and a CAN bus interface, wherein the power supply unit is respectively connected with the main control unit, the bluetooth module and the CAN bus interface and provides the power supply voltage needed thereby; the main control unit is respectively connected with the bluetooth module and the CAN bus interface and can transmit data therebetween. Through the CAN bus-bluetooth intelligent network bridge in the invention, wireless data transmission between the CAN network and the bluetooth device, such as an auto diagnosis apparatus, can be realized via the bluetooth network, thus expanding data transmission distance and improving operation convenience of the device.

Description

technical field [0001] The invention relates to the communication field, in particular to a CAN bus-Bluetooth network bridge. Background technique [0002] At present, with the development of computer technology, on-board microcomputer controllers are used in more and more cars, and these controllers are connected through buses such as CAN and LIN to transfer and exchange data with each other, among which CAN (Control Local Area Network ) bus is currently the most used. This has greatly improved the power, safety, reliability and humanization of the car, but it also makes car maintenance diagnosis and troubleshooting much more difficult. For this reason, a fault self-diagnosis module is added to the on-board microcomputer controller to store the performance and fault parameters during the running of the car, and even automatically analyze and judge the technical status of the car, and display it on the car diagnostic instrument , so that the maintenance personnel can quick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/40H04B5/00H04L12/46
Inventor 付景枝王礼建
Owner NANJING UNIV OF INFORMATION SCI & TECH
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