數(shù)據(jù)交換平臺中的異構(gòu)數(shù)據(jù)轉(zhuǎn)換技術(shù)

　　為了有效地解決數(shù)據(jù)交換時數(shù)據(jù)表示的通用性問題，使得數(shù)據(jù)在不同的業(yè)務(wù)系統(tǒng)間都能夠被識別，本課題采用調(diào)查研究和文獻研究相結(jié)合的方法，首先對淮北礦業(yè)集團各業(yè)務(wù)系統(tǒng)數(shù)據(jù)庫中數(shù)據(jù)表進行統(tǒng)計和分析，重點分析了需要轉(zhuǎn)換數(shù)據(jù)的類型和邏輯關(guān)系，總結(jié)出其所有數(shù)據(jù)轉(zhuǎn)換的邏輯關(guān)系，然后參考現(xiàn)有文獻資料中提出的數(shù)據(jù)轉(zhuǎn)換模型，最后制定出有獨創(chuàng)性的數(shù)據(jù)源標準和數(shù)據(jù)映射標準。并采用通用的數(shù)據(jù)描述語言——XML(eXtensive Makeup Language)將其主要部分表示出來。該數(shù)據(jù)標準有著數(shù)據(jù)表示范圍超越數(shù)據(jù)表、數(shù)據(jù)轉(zhuǎn)換的靜態(tài)模型和動態(tài)模型相結(jié)合、數(shù)據(jù)表示和實體數(shù)據(jù)庫相分離等特點。通過項目實踐，證明了該標準能夠解決數(shù)據(jù)表示的通用性問題，能夠?qū)崿F(xiàn)了數(shù)據(jù)在不同業(yè)務(wù)系統(tǒng)之間識別與轉(zhuǎn)換。

　　Abstract:

　　In this paper a portable human-machine interface system based on the STM32 Micro-controller to be used in the compution of Total station measurement is designed. The methods of simulation bus timing by MCU IO port and use SPI interface Flash to storage the font is used. We stored the chinese font in the external SPI interface Flash and load them when we need to use them. The design of chinese font show system based on the latest ARM Cortex-M3 processor was finished. Human-machine interface system which has self definite chinese font is realized.