基于CAN现场总线时间信息共享技术研究

The Research of Share Technology About Time Information Based The CAN-bus

某电子时间引信系统从火控计算单元提取的射弹飞行时间数据需要实时可靠地传送给编程装置,为保证时间信息传送的准确、及时,采用了CAN总线进行时间信息的传输。简述了CAN现场总线及智能节点接口技术,设计了时间提取单元和编程装置,给出了时间信息提取电路及编程装置的结构图,实现了通过CAN现场总线传送时间信息的目的。

The data of projectile flight time obtained by some electronic time fuze system from the fire control computing units need to be transmitted to the programmable device duly and reliably. For assuring the time information to be transmitted duly and reliably, the CAN-bus is adopted to carry the time data. In this paper, the CAN-bus and interface technology of the CAN smart node is narrated briefly, the time information obtaining units and the programmable device are designed, the configuration chart of the time obtaining circuit and programmable device are given .The aim of transmitting time data by CAN field bus is achieved.