摘要
介绍一种曼彻斯特码测井电缆通信系统的原理、组成、工作性能及其应用效果。系统中曼彻斯特码编码译码器是用PIC单片机实现的,具有应用灵活、电路简单、成本低、可靠性好等特点。系统还用PIC单片机实现了CRC软件校验功能,提高了数据传输的准确率和稳定性。实际应用表明,系统工作正常,可以满足一般常规测井的数据传输要求。
This paper describes the principle, composition, performance and practical application of a logging cable communication system. The system utilizes PIC microprocessor to carry out the Manchester eneoder/deeoder and cyclic redundancy check （CRC） with software. It is characterized by its flexibility, simple circuit, low cost and high reliability, as well as its improvement in accuracy and stability of data transmission. The practical application shows that the system works well and is able to meet the requirement of conventional logging communication.
出处
《测井技术》
CAS
CSCD
2006年第6期576-579,共4页
Well Logging Technology
