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A CAN bus transceiver system

A technology of CAN bus and transceiver system, applied in the field of CAN bus transceiver system, can solve problems such as difficult large-scale popularization and use, high cost, complex circuit structure, etc., to reduce mutual interference, improve stability and reliability, circuit The effect of simple structure

Active Publication Date: 2022-07-08
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to improve the stability of the CAN bus circuit for automobiles, the circuit structure is complicated, resulting in very high cost, and it is not easy to promote and use on a large scale.

Method used

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  • A CAN bus transceiver system
  • A CAN bus transceiver system
  • A CAN bus transceiver system

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Embodiment Construction

[0022] Below with reference to the accompanying drawings, the specific embodiments of the present invention, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, etc. are described in further detail:

[0023] like figure 1 As shown, a CAN bus transceiver system includes a micro-control module 10, a CAN transceiver module 20, and an isolated power supply module 30. The micro-control module 10 is used for receiving an input signal and sending the input signal to the CAN transceiver module 20; The CAN transceiver module 20 is used to convert the input signal into a CAN signal, and send the CAN signal to the CAN network; when there is a CAN signal input in the CAN network, the CAN signal is decoded and sent by the CAN transceiver module 20. to the microcontroller module 10; the isolated power supply module 30 is used for power conversion, and the input end of ...

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Abstract

The invention belongs to the field of bus technology, in particular to a CAN bus transceiver system. The invention includes a micro-control module, a CAN transceiver module, and an isolated power supply module. The micro-control module is used to receive input signals and send the input signals to the CAN transceiver module. The CAN transceiver module is used to convert the input signals into CAN signals, and The CAN signal is sent to the CAN network, and when there is a CAN signal input in the CAN network, the CAN signal is decoded by the CAN transceiver module and sent to the micro-control module; the isolation power module is used for power conversion, and the input end of the power module is isolated A first power supply is connected, and the first power supply is used for supplying power to the micro-control module and the CAN transceiver module; the output end of the isolated power supply module is connected to the second power supply. The invention greatly improves the stability and reliability of the circuit, and the isolated power supply module effectively reduces the mutual interference between the CAN network and the micro-control module, and the circuit structure of the invention is simple, further reduces the cost, and is suitable for mass production.

Description

technical field [0001] The invention belongs to the field of bus technology, in particular to a CAN bus transceiver system. Background technique [0002] CAN bus technology, the full name of "Controller Area Network-BUS", CAN bus technology was first used in the communication of aircraft, tanks and other weapon electronic systems, and this technology was used in the earliest origin of civil vehicles In Europe, this kind of bus network is used for the transmission of various sensor data in the car. At present, there are two main ways to connect the CAN bus in the car: one is the high-speed CAN bus used for the drive system, and the speed can reach 500kb / s; The other is the low-speed CAN bus used in the body system, with a rate of 100kb / s. Of course, there are some buses such as entertainment systems or intelligent communication systems for mid-to-high-end cars. Their transmission rates are higher and can exceed 1Mb / s. The high-speed CAN bus mainly connects the engine control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40
CPCH04L12/40013H04L2012/40215Y02P90/02
Inventor 光昌国周东方应鑫王贵听
Owner ANHUI NORMAL UNIV