摘要
用于传输井下数据的双通道电缆遥测系统传输接口 ,它使用模式 5与模式 7两个通道 ,总传输速率可以达到 40 0 KBPS,采用数据分配和合成方法 ,显著简化了系统的硬件结构 。
With the continuous development of the imaging logging tool,the data quantity through the borehole cables is greatly increased.Therefore,the higher requirements to the cable telemetry system are raised.In order to implement the high speed transmission of datum,several cores of logging cable are used and several upgoing channels are designed besides the high performance encoding plan is adopted.A transmission interface scheme on dual channel cable telemetry system is described.Using mode 5 and mode 7,the transmission rate can be up to 400 KBPS.By the help of data distribution and composition,the hardware system can be greatly decreased and the reliability of the whole system is improved.
出处
《石油仪器》
1997年第2期15-17,60-61,共3页
Petroleum Instruments
关键词
测井仪
电缆遥测系统
数据传输
软件
硬件
logging equipment,cable telemetry system,data transmission,hardware,computer program
