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With the continuous development of oilfield equipment and technology to improve the oil companies to survive and competitiveness, reduce production costs and improve labor efficiency, reduce security risks, is the field current and future periods a major task . Oil companies carried out by pumping pumping operation, you need workers to operate a dedicated vehicle for pumping jobs, but workers are difficult to accurately determine what position downhole pumping sub in only infer based on experience , the error is very large, so a signal acquisition system needed to do such work. Signal acquisition system in pumping unit designed to achieve, is to meet the development needs of the oilfield , is the digital oilfield foundation for the development and improvement of oilfield oilfield automation level of modern management play a major role. In this paper, embedded system design methods, namely software and hardware design coordinated approach in the design of hardware and also conducted a supporting software part of the design . The system includes microcontroller, memory , display devices , key equipment and communication interfaces designed for oil testing oil , fishing oil, fishing sand downhole . When the production operations , the signal acquisition device automatically depending on the operating conditions for dynamic sealing rope , with the rope to prevent water overflow caused by the movement of the on-site environmental pollution. Having a finger deep , limit pre-alarm , crane anti-collision , the liquid level display , data storage and other major functions.
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