用软件实现曼彻斯特编译码方法的研究

介绍了在测井仪器中如何用单片机软件编程将井下仪测试数据实现曼彻斯特编码、发送传输 ,及地面解码等方法 ;阐述了井下仪实现双极性曼彻斯特码差分化的技术原理 ,地面译码时同步识别、数据采集、数据串 /并转换等技术方法 ,以及该方法在实践中应用情况。实际应用表明 ,该技术传 /收数据稳定可靠 ,智能化程度高 ,大大地简化了仪器硬件电路 ,提高了仪器性能价格比 ,在生产测井领域具有良好的推广应用前景。

The study of the method of Manchester’s coding and decoding with software

This article mainly presents the method of carrying out Manchester's coding, transmitting and surface decoding within the logging tool for the logged data through single chip processor software programming. It also presents the technical principle of the logging tool realizing dual-polarized Manchester's code difference, and the ways of synchronous identification, data acquisition and series-parallel transmission during the surface decoding. The in-situ application of the method is described, too. The actual application shows that the technology features stable and reliable data transmission and acceptance and high-degree intelligence, thus greatly simplifying the tool's circuit, improving its cost performance and having an excellent application prospect.