安全检测：瑞星：安全 诺顿：安全 卡巴：安全
【Abstract】 With the constant development of equipment in oil field, improving the viability and competitive ability of the oil enterprises, reducing output cost, raising working efficiency, lessening the potential safety hazard, are the main task in the oil field for the time being and in a future time.When the pumping unit operating the task of suction, oil enterprises require workers to operate specialized vehicles to do the task of suction, but it is not easy for the workers to judge the underground position of pump accurately, they have to infer according to experience with error, therefore, a system of signal acquisition is demanded deadly to do such kind of work.The designing Realization of the signal acquisition system in the pumping unit catering for the developing demand of oil field, which is the base of digitalized oil field and play an important role in automatic development together with promotion of the modern management level for the oil field.The essay mainly adopts the designing method of embedded system, a kind of coordination of software and hardware design, that is to say, designing the auxiliary part of software while designing the part of hardware. The system mainly includes designs of single-chip computer, storage, display equipment, button equipment and communications interface etc., which is applied to underground task of oil testing, oil salvage,sand salvage and so on. When doing the operation, the equipment of signal acquisition will conduct a dynamic seal to wire rope automatically according to the state of operation in case of the oil overflow caused by movement of wire rope and the environmental pollution for the spot. The main functions of the system are indicate depth, limited warning, crown-saver, liquid display and date storage.
【关键词】 嵌入式系统； 单片机； 信号采集； 串行通讯； 控制系统；
【Key words】 embedded system； singe-chip computer； signal acquisition； serial communication； control system；