摘要
旋转导向工具仪器工作在井下苛刻环境中,其内部通信系统需要具有耐高温、可靠性高、通信实时性强和扩展灵活等特性。设计了一种基于HI3110芯片的CAN总线通信系统,介绍了利用CAN总线控制驱动集成芯片HI3110及单片机实现CAN总线通信节点的系统硬件设计结构方案和软件工作流程。实验室测试表明,该通信系统在125℃环境温度下,通信误码率可以达到10-5,满足旋转导向仪器内部通信系统对耐高温、可靠性、实时性的要求,并且在旋转导向工具工程应用中取得了很好的效果。
Rotary steerable drilling tool works in harsh environment underground .The communication system in tools need the following characteristics ,such as high temperature resistance ,high reliability ,realtime capability and flexible expansion capability . This paper describes the design of CAN bus communication system based on HI3110 chip , introduces CAN bus communication nodes hardware structure and software work flow with HI 3110 and MCU . Laboratory tests show that the communication bit error rate can reach 10-5 in ambient temperature 125 ℃ . The communication system meets requirements of rotary steerable tool with high temperature resistance ,high reliability and realtime capability ,and obtained the good effect in engineering application of rotary steerable drilling tool .
出处
《电子测量技术》
2015年第6期143-147,共5页
Electronic Measurement Technology
