[PR]
×
[PR]上記の広告は3ヶ月以上新規記事投稿のないブログに表示されています。新しい記事を書く事で広告が消えます。
What is CANbus
CANbus (Controller Area Network bus) is a serial communication protocol for embedded systems. It was developed by Bosch in Germany in the 1980s to meet the needs of efficient and reliable communication in complex electronic systems. CANbus is mainly used in automotive electronic systems, but it is also widely used in industrial automation, medical equipment, agricultural machinery and other fields.
Core features of CANbus
Multi-host structure:
CANbus is a multi-host network protocol. This means that multiple nodes on the network (such as controllers, sensors or actuators) can communicate without a master device.
Broadcast communication:
All nodes communicate through a single bus. The data frame sent by one node will be received by all other nodes. This broadcast mechanism makes system design simpler.
Efficient data transmission:
CANbus handles access to multiple nodes through a priority-based arbitration mechanism. Data frames with higher priority will be transmitted first, which can reduce the delay of data transmission.
Error detection and handling:
CANbus includes a variety of error detection and handling mechanisms, such as bit errors, fill errors, CRC check errors, etc. When a node detects an error, it will automatically retransmit the data to ensure the reliability of the data.
Real-time performance:
CANbus supports high-priority data transmission and is suitable for applications that require real-time response, such as engine control and braking systems in automobiles.
PR