资 源 简 介
为满足实时测井需求，提高系统资源的利用率和系统性能，在数控测井软件开发中将多线程编程技术应用其中，并对多线程编程技术应用的可行性和必要性进行了分析。给出了软件的模块框图及多线程间关系，利用MFC的自定义类封装和实现各个线程，在线程中分别实现串口通信、数据处理、实时绘图功能，采用事件、消息驱动的方式来调度同步线程。实验结果表明，数控测井软件在使用多线程编程技术后，比未使用多线程技术，提高了CPU 50%的使用效率，每秒处理的最大数据由15组提高到40组，对程序的实时性起到良好的作用。
Abstract: In order to satisfy the requirement of real-time logging， raise the ultiliazation rate of the resource and improve the performance of the system， multi-thread programming technology was used in the computerized well logging software. In this paper， we analyzed the necessity and feasibility of multi-thread programming technique， found the software module diagram and the relationship between the multi-thread， encapsulated and implemented each thread using general class of MFC， realized the function of serial port communication， data processing， real-time cartography separately in threads， used the event and message to dispatch the synchronize threads. The results show that the numerical control logging software with multi-thread programming can raise the service efficiency of CPU by 50%， enhance the biggest processing data from 15 to 40 groups each second， which has good effect on the real-time of program.
