為滿足實時測井需求，提高系統(tǒng)資源的利用率和系統(tǒng)性能，在數(shù)控測井軟件開發(fā)中將多線程編程技術(shù)應(yīng)用其中，并對多線程編程技術(shù)應(yīng)用的可行性和必要性進(jìn)行了分析。給出了軟件的模塊框圖及多線程間關(guān)系，利用MFC的自定義類封裝和實現(xiàn)各個線程，在線程中分別實現(xiàn)串口通信、數(shù)據(jù)處理、實時繪圖功能，采用事件、消息驅(qū)動的方式來調(diào)度同步線程。實驗結(jié)果表明，數(shù)控測井軟件在使用多線程編程技術(shù)后，比未使用多線程技術(shù)，提高了CPU 50%的使用效率，每秒處理的最大數(shù)據(jù)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.