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Gateway controller with multi-channel CAN bus communication function

A CAN bus, gateway controller technology, applied in the field of gateway controllers with multi-channel CAN bus communication, can solve problems such as single function and poor reliability

Inactive Publication Date: 2015-01-07
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gateway controller with multi-channel dual redundant CAN bus communication, which solves the problem of poor reliability and single function of general gateway controllers

Method used

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  • Gateway controller with multi-channel CAN bus communication function
  • Gateway controller with multi-channel CAN bus communication function
  • Gateway controller with multi-channel CAN bus communication function

Examples

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Embodiment Construction

[0016] A gateway controller with multi-channel CAN bus communication, including: CPU1, power supply circuit 5 and dual redundant CAN bus circuit 4, also includes: electronic relay switch 2, photoelectric isolator 3, core processing module 6 and dual redundant Bus communication module 7. The dual redundant CAN bus circuit 4 includes: an isolation amplifier and a CAN driver; the power supply circuit 5 includes: a switch and a DC / DC conversion chip.

[0017] Dual redundant CAN bus circuit 4, electronic relay switch 2, photoelectric isolator 3 and power supply circuit 5 are connected to CPU1.

[0018] Both the core processing module 6 and the dual redundant bus communication module 7 are placed in the CPU. The function of the core processing module 6 is: to realize the initialization of each interface of the controller, various task scheduling management, switch data acquisition and processing and switch output control; the function of the dual redundant bus communication module ...

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Abstract

The invention discloses a gateway controller with a multi-channel CAN bus communication function. The gateway controller comprises a CPU (1), a power circuit (5), a dual-redundancy CAN bus circuit (4), a core processing module (6), a dual-redundancy bus communication module (7), an electronic relay switch (2) and an optoelectronic isolator (3). According to the gateway controller, data exchange with multi-CAN subnet control equipment is realized through the dual-redundancy CAN bus circuit (4); switching value signals in various forms are collected through the optoelectronic isolator (3), and the core processing module (6) conducts data collection, logical operation and diagnostic analysis to obtain control requirements; control over controlled equipment is realized through the electronic relay switch (2). The controller is key equipment for multi-CAN-bus subnet system networking for outdoor equipment such as automobiles, special vehicles and engineering machines, each group of CAN network uses two CAN buses to realize dual-redundancy communication, and the problems that a general gateway controller is poor in reliability and single in function are solved.

Description

technical field [0001] The invention relates to a gateway controller, in particular to a gateway controller with multi-channel CAN bus communication. Background technique [0002] At present, CAN bus is widely used not only in the field of automobiles and engineering machinery, but also in the field of industrial control, such as industrial field control and community security. Due to the large number of CAN bus communication devices on most construction machinery vehicles, the CAN gateway controller used for multi-channel CAN subnetworks has become one of the key devices in CAN bus networking. The automotive CAN bus gateway controller based on LPC2294 mainly includes CPU, memory, CAN bus circuit, power supply, initialization module and CAN bus communication module. The gateway controller is mainly used for data interaction between two CAN buses. The defect of the gateway controller is that the two CAN networks only use one CAN bus, which has certain unreliable factors. At...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/40
Inventor 陈治国邱旭阳吴庆勋聂光玮王雷
Owner BEIJING MECHANICAL EQUIP INST
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