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　　在樓宇自控網(wǎng)絡中采用以太網(wǎng)的優(yōu)點是：實現(xiàn)了從管理層(信息網(wǎng))到現(xiàn)場設備控制層(控制網(wǎng))的“一網(wǎng)到底”，即實現(xiàn)人們期望的通信協(xié)議的兼容和統(tǒng)一；這樣系統(tǒng)擴展起來也比較方便；與智能建筑中其它系統(tǒng)(信息網(wǎng)通信自動化系統(tǒng)和辦公自動化系統(tǒng))集成起來更加容易。其缺點是：首先，目前開發(fā)基于以太網(wǎng)的控制系統(tǒng)產(chǎn)品的難度較大，開發(fā)費用和成本相對還是較高，用戶可以選擇的廠商也很有限，壟斷利潤較高，研發(fā)成本還沒有被消化，這些都導致產(chǎn)品價格過高。其次，以太網(wǎng)的實時性、可靠性等方面還有待進一步完善。

4　結(jié)束語

　　就目前而言，不管是應用在樓宇自控網(wǎng)絡中的基于現(xiàn)場總線的FCS還是以太網(wǎng)，都有論文聯(lián)盟wWw.LWl論文聯(lián)盟WWW.LWLM.COM整理m.com其優(yōu)點和缺點。隨著時間的推移和技術(shù)的進步，它們也必將會被進一步完善。據(jù)統(tǒng)計，我國目前有從事樓宇自動化業(yè)務的企業(yè)3000家以上，產(chǎn)品供應商約3000家。另外，隨著我國紹濟的快速發(fā)展和人們生活水平的不斷提高，建筑和社區(qū)的數(shù)字化建設正在興起，F(xiàn)CS和以太網(wǎng)都必將在樓宇自控領域中獲得更廣泛的應用，在今后相當長的時間內(nèi)，兩者在競爭的同時也將繼續(xù)并存。

參考文獻

1郭維均．俞洪．《智能建筑基礎》中國計量出版社． 2001：6

2陳秋良．自動控制技術(shù)．《現(xiàn)場總線控制系統(tǒng)綜述》 2001；20

3李光輝．繆希仁．現(xiàn)場總線技術(shù)及在低壓電器領域中的應用．電工技術(shù)雜志，2002

4郝曉弘．馬向華．現(xiàn)場總線控制系統(tǒng)一新一代控制系統(tǒng)．《工業(yè)控制計算機》2001；14

5陽憲惠．《現(xiàn)場總線技術(shù)及其應用》清華大學出版社,1999

6張振昭．許錦標．萬頻．《樓宇智能化技術(shù)》北京機械工業(yè)出版社。1999

7董春橋．BACnet標準在我國推廣和應用的思考．《智能建筑與城市信息>。2003

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