為了提高中小企業(yè)管控一體化程度，統(tǒng)一反映企業(yè)各個工業(yè)現(xiàn)場實時運(yùn)行狀況，設(shè)
計工業(yè)實時數(shù)據(jù)庫成為實現(xiàn)工業(yè)現(xiàn)場網(wǎng)絡(luò)與企業(yè)管理網(wǎng)絡(luò)相結(jié)合的關(guān)鍵所在。論文介紹了一種基于VC++和Delphi 的實時數(shù)據(jù)庫系統(tǒng)的開發(fā)方法，提出了利用動態(tài)鏈接庫實現(xiàn)實時數(shù)據(jù)庫系統(tǒng)核心，并給出了數(shù)據(jù)模型和接口的實現(xiàn)，同時引入了空間替換法滾動存儲多批次歷史數(shù)據(jù)的方法，利用該方法設(shè)計的工業(yè)實時數(shù)據(jù)庫系統(tǒng)具有全面的開放性和靈活性。
關(guān)鍵字：數(shù)據(jù)對象； 實時數(shù)據(jù)庫； DLL；多線程
The Study and Design of the Industrial Real-time Database System Huang shao-chuan1，KAI Jin-yu2, Mo Lin3 (1、Guangxi international business vocational college ,Guangxi Nanning 530007； 2、College of Computer and Information ,Anyang Normal University, Henan Anyang 455000 3．Guangxi University, Guangxi Nanning 530004) Abstract: In order to improve the level of combination of the managing and controlling in the enterprises, reflect uniformly the real time running states of all spots in the enterprise, the design of an industrial real time database is the key of combining the industrial scenes net and managing net. The strategy of designing a real-time database system (RTDBS) with VC++ and Delphi are introduced, a method of establishing RTDBS by means of dynamic link library (DLL) is presented, and a method for realizing model and interface is given, a new method of saving multi-times history data by using cycling mechanism for saving memory space is introduced. Thus RTDBS designed in Industry possesses all-round openness and flexibility.
Keywords: Data object; Real-time database; DLL; multi-thread