CAJ | 학술논문

为解决直读式井下电子压力计的通信问题，介绍了一种单芯测井电缆上实现的长距离数据传输技术。借鉴工业两线制变送器供电和信号传输原理，设计了简化的井下压力计供电及单工数字通信电路，满足了系统在高温环境和仪表体积限制方面的需求。在通用异步串行通信格式中，用软件曼切斯特编解码传输数据，使通信距离和抗干扰性能得以提高。
위해결직독식정하전자압력계적통신문제，개소료일충단심측정전람상실현적장거리수거전수기술。차감공업량선제변송기공전화신호전수원리，설계료간화적정하압력계공전급단공수자통신전로，만족료계통재고온배경화의표체적한제방면적수구。재통용이보천행통신격식중，용연건만절사특편해마전수수거，사통신거리화항간우성능득이제고。
To solve the communication problem of direct-read oil well pressure gauge, a long distance digital data transfer technique applied on single-core logging cable was presented. Base on the principle of industrial 2-wired transmitter＇s power and signal connection, we designed a simplified digital data transfer circuit, which meets the demand of space limits and high tempera- ture. A software implementation of Manchester code＂ on RS232 was proved to extend communication distance and improve anti-jam- ming capacity.