基于CAN总线的井下视频信号采集系统设计  

Design of down-hole video signal acquisition system based on CAN bus

作　　者：张家田[1] 王金成[1] 严正娟[1] 赵明[1] 

机构地区：[1]西安石油大学光电油气测井与检测教育部重点实验室,陕西西安710065

出　　处：《电子技术应用》2013年第12期15-17,21,共4页Application of Electronic Technique

基　　金：国家重大专项(2011zx05020-004-05)

摘　　要：深井环境恶劣,要求测井仪器可靠性高、数据处理性能好。介绍了以ADSP-21992芯片为主控芯片的井下视频信号采集系统设计。该系统主控芯片内嵌CAN控制器,与相关元器件组成CAN接口单元,搭载EILog-06测井系统的遥传短节,实现对井下图像数据的采集和传输。给出了系统的硬件设计和软件设计,并用串口摄像头进行了测试验证。Due to the physically harsh environment in deep well, a high reliability system with good performance in signal pro- cessing is necessary. The design of downhole video signal acquisition system based on ADSP-21992 microprocessor is introduced. The inside CAN controller and other components are employed as the main eompengts to constitute the CAN bus interface. The borehole images transmission and acquisition are realized by using the EILog-06 logging system which is mainly composed of the logging telemetry joint and the CAN bus interfaces. The design of hardware and software of the system are showed, and the experi- mental CMOS camera is given to verify the feasibility of this method.

关 键 词：井下视频 摄像头 ADSP-21992芯片 CAN总线 EILog-06测井系统 

分 类 号：P631.83[天文地球—地质矿产勘探]