Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hard handover dual-redundancy CAN controller

A CAN controller and dual-redundancy technology, applied in the field of CAN bus communication, can solve problems such as insufficiency, achieve high switching efficiency, simple and convenient operation, and reduce software burden

Active Publication Date: 2014-07-16
NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current switching method and redundant mode of the dual redundant CAN controller cannot meet the requirements for high switching efficiency, multiple reliability, system flexibility and miniaturization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hard handover dual-redundancy CAN controller
  • Hard handover dual-redundancy CAN controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] The controller structure is as figure 1 shown. 1 is the bus interface module, 2 is the channel switching control module, 3 is the first CAN bus controller module, 4 is the second CAN bus controller module, 5 is the address data signal line of the wishbone bus, and 6 is the interface control of the wishbone bus Signal line, 7 is the address data signal line inside the controller, 8 is the internal control signal line, 9 is the interface signal line between the first CAN bus controller module and the external transceiver, and 10 is the second CAN bus controller module and Interface signal lines for external transceivers.

[0019] The controller communicates with the external wishbone master device through the address data signal line 5 of the wishbone bus and the interface control signal line 6 of the wishbone bus; the bus interface module 1, the channel switc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a hard handover dual-redundancy CAN controller, which is characterized by comprising a bus interface module, a handover control module, a first CAN bus controller module and a second CAN bus controller module, wherein the bus interface is used for data exchanging of an external bus with an on chip bus and responding; and the handover control module receives control and data signals from the two CAN bus controller modules and determines the states of the first CAN bus controller module and the second CAN bus controller module, judges whether handover is switched, and transmits the control and data signals to the bus interface module, the first CAN bus controller module and the second CAN bus controller module. The hard handover dual-redundancy CAN controller has the advantages of high handover efficiency, nanosecond level handover completing, capability of meeting the requirements of different reliabilities, wide application range, reduced software load, and simpleness and convenience for operation.

Description

Technical field: [0001] The invention belongs to the field of CAN bus communication, and in particular relates to a dual-redundancy controller for pure hardware switching. Background technique: [0002] Most of the currently used dual redundant CAN bus systems are switched by software, the switching efficiency is low, the switching conditions are single, and cannot meet the requirements of different reliability of the network; and the redundancy mode of dual controllers and dual buses is adopted, the mode is single, and the nodes are only It can work in redundant mode; users need to configure two bus controllers, the system is complex, and the software burden is increased. Related patent achievements include dual redundant CAN bus communication system and its communication method, dual redundant CAN bus controller and message processing method, CAN bus dual redundant hot switching system, CAN bus dual redundant hot switching system and hot Switch method. [0003] The curre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
Inventor 王瑞晓刘泽响翟雯艳吕树云
Owner NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com