為滿足實時測井需求，提高系統資源的利用率和系統性能，在數控測井軟件開發中將多線程編程技術應用其中，并對多線程編程技術應用的可行性和必要性進行了分析。給出了軟件的模塊框圖及多線程間關系，利用MFC的自定義類封裝和實現各個線程，在線程中分別實現串口通信、數據處理、實時繪圖功能，采用事件、消息驅動的方式來調度同步線程。實驗結果表明，數控測井軟件在使用多線程編程技術后，比未使用多線程技術，提高了CPU 50%的使用效率，每秒處理的最大數據由15組提高到40組，對程序的實時性起到良好的作用。

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.