針對某大型港口海關(guān)對通關(guān)效率和可靠性的要求，通過分析系統(tǒng)結(jié)構(gòu)、功能，提出了
采用分布式結(jié)構(gòu)的大型港口海關(guān)電子閘集成系統(tǒng)。分析了系統(tǒng)在準(zhǔn)確性、可靠性、穩(wěn)定性以及抗干擾能力等方面的要求，對系統(tǒng)的部分通訊采用冗余通訊方式，對系統(tǒng)部分設(shè)備進(jìn)行冗余控制。研究了工業(yè)以太網(wǎng)及現(xiàn)場總線等技術(shù)在系統(tǒng)中的合理運(yùn)用。系統(tǒng)通過在某港口一個多月的運(yùn)行測試，證明其穩(wěn)定性等指標(biāo)都實現(xiàn)了預(yù)期目標(biāo)。
關(guān)鍵詞：PROFIBUS, OPC 技術(shù), 關(guān)系數(shù)據(jù)庫
ABSTRACT: Introducing an efficient and reliable system which is designed for a large container terminal via analyzing the construction and function of the system. Analyzing the requirements of precision, reliability, stability and anti-jam ability of system，employ redundancy in the system communication and redundant control in part of system. Study the applications of technologies, such as industrial Ethernet and Field Bus, in the system. And the test results show that the system is efficient.
KEY WORD: PROFIBUS, OPC, Relation Database