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    2014-02-21 07:41:48Դ: ʡһԺߣΰ

     һ

    ؼƲǵؼеҪǽַ㾫Ⱥ͵ؼͼȵĻ˱뾫ơϸҪѭ“嵽ֲּ𼶿ԭ

    ؼƲƲͼƲΪƽƲ͸߳̿ƲõķGPS߲ˮ׼ࣨEDMǸ̲߳ȡ

    ص

    ؼƵλҪ󾫶ȸߡܶȴ󡣵ؼƽƲĵȻƲһܿƲݵIJƼչ״ǰձGPSӲGPSGPS͵߲ߵĽϡβȣؼҪƽƵнϴܶȡؼͼIJ񣨵λȡܶȣͼߴС޹أβͼвͼ߾ؼͼƵλܶҪַҪλܶҪϸߣÿ·϶ҪеߣؼͼƵ㲻ҪΪǰĵؼϸ񣬻ΪճؼеؼͼƵӦԻԱʶڵβУͼƵԭϲسñ棬λֻʱʶ   

    1.  GPS

    ȫλϵͳGPSڹ㷺Ӧڸ𽥷չΪƲеֶ뷽ھIJ˵ص:

    ۲վ֮ͨӣνṹǵó淽ʱҪ GPSӦ1~2ͨӡGPSIJĿġҪ󡢽ջνͨۺϿǣŻԭС

    λȸߣṩάꡣGPSھȷⶨ۲ƽλõͬʱԾȷⶨ۲վĴظߡ

    ۲ʱ̡±;              

    GPSȷּ                       

    Ŀ

    ۲ⷽ

    ȼ

    D

    E

    ĵ

    һ

     

    ʱγ/min

    پ̬

    2

    1.6

    1.6

    1.6

    1.6

    ̬

    60

    45

    45

    45

    45

    ȫҵGPS۲⹤κεص㣬κʱؽУһҲ״Ӱ졣

    ĿǰڵؼУѡGPSֶлƲGPSʱѾ“ּ𼶿”IJԭҵʽݵλĵȼȡ롢Ҫþ̬پ̬λԭGPSݴһ߽㡢ƽͶӰתõGPSڵϵͳеߡ

    ͼƲУGPSRTKGPSʵʱ̬Լ·չвοվϵͳCORS

    RTKĻ ԭǣڻ׼վϰһ̨GPSջпɼGPSǽ۲⣬۲ݣͨߵ紫豸ʵʱط͸û۲վûվϣGPSջڽGPSźŵͬʱͨߵ豸ջ׼վĹ۲ݣȻԶλԭʵʱ㲢ʾûվά꼰侫ȡRTKЧʸߣȵ߲Ĺٺܶࡣ

    CORSϵͳԶΪһɸ̶ġеGPSοվִͨźͻ(LANWAN)ɵ磬ʵʱͬͬ͡󡢲ͬεûԶṩIJͬ͵GPS۲ֵ(زλα)ָ״̬ϢԼйGPSĿϵͳǼinternet,ͨѶ,GPSλһϵͳʵӦCORSϵͳһͨGPRSͨѶġ ͬRTKƣ

    ҵԱҪ׼վ

    οվеϵͳٻ

    վͻ׼վľӡ

    OTFʼʱ䡣

    񾫶ȷֲȣRTKľӶ͡

    2.  ߲

    ڵؼҪڳΧɱзֵܼĵطЩGPSջ޷㹻ǣźŲ޷ӦƵάꡣʱΪͳֶεĵֳ߲ãȫվռ£߲ĹҲ󽵵ˡڵؼУ߲ķҪͼƲڵؼĵλҪߣƵܶȴԵ߲һ㲼ΪżҲɷϵߣƽİ취м㡣

    3.  ߳̿Ʋ

    ȻؼDzⶨؼҪغͱҪĵҪصƽλãֻؼķչҪά꣬ʹؼɹõ;չҪ߳̿

    ߳̿Ҫøȼˮ׼ķGPS̵߳ķΪGPSߣúˮ׼÷ƴˮ׼澫ģڲø߳쳣ֵӶѴظ߻ߡ

    4.  ʵ

    ijеؼ񣬳Լ10ƽƽƵλС5 cmƲԹCGPSΪ㣬DGPSƽ0.5/ƽEGPSƽ8/ƽܶҪͬʱʵʹҪžͼƲҪ󣬲DEGPS߳̿Ʋ1985Ҹ̻߳׼ڶˮ׼Ļϣĵˮ׼ķУƽ㡣δĵˮ׼GPSɲGPS߳ķߡ

    ؼͼƲDEGPSĻõķܣҵƽƽͼ߳̿EDMǸ̵߳ķڿ³źźõĵطCORSϵͳGPSʵʱõͼ꣬GPSؼʱһӽмˡ

    5. 

    ǰžõķչعԽԽܹҺ͵طŵӣعһҪݾǵؼؼΪΪؼṩIJõ˺ܴķչԺҲ֯ȫڶص顣ƲؼĻӦõӣַĺӦãʹؼøɡ

     

    ο

    ں ࡶؼѧӺѧ磬20048µڶ档

    TD 1001-93ؼ̡

    GB/T 18314-2001,ȫλϵͳ(GPS)

    GB 500261993  ̲淶˵

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