【正文】
(4)Any ponent failure can not lead to error running of the equipments. ExtendibilityIn order to guarantee the monitor extendibility on adding gates number or gate extension construction, the system has extendibility on following aspects:(1)Backup points number is not less 20% of the running equipments。(2)when meeting wrong operation it would be forbid to operate automatically。 Maintainability The system hardware and the software is easy to maintain, measure and repair.(1)The equipment has selfdiagnosis function。(2)The analog acquisition cycle: electricity 2s, nonelectricity 10s。4結(jié)語該系統(tǒng)設(shè)計(jì)了各級(jí)監(jiān)控站的權(quán)限設(shè)置問題,特別是現(xiàn)地啟閉機(jī)運(yùn)行控制及故障保護(hù)功能的設(shè)計(jì),各級(jí)監(jiān)控站權(quán)限狀態(tài)的合理設(shè)置,解決了現(xiàn)地與遠(yuǎn)程發(fā)生沖突及出現(xiàn)意外緊急情況時(shí)的應(yīng)急處理措施,使系統(tǒng)功能更加安全完善。通信軟件基于TCP/IP以太網(wǎng)絡(luò)接口,為系統(tǒng)各進(jìn)程間提供網(wǎng)絡(luò)透明的通信服務(wù),為系統(tǒng)的資源和數(shù)據(jù)共享提供必要的條件和有效的保護(hù)。⑷具有存儲(chǔ)器轉(zhuǎn)存的實(shí)用程序。⑵具有直接控制輸入和輸出設(shè)備的能力。⑶ 任何硬件和軟件的故障都不會(huì)危及系統(tǒng)的完善和人身的安全。⑵ 當(dāng)操作有誤時(shí),能自動(dòng)被禁止動(dòng)作。⑸ 互換件和不可互換件可保證識(shí)別。⑸控制命令響應(yīng)時(shí)間:控制命令回答響應(yīng)時(shí)間<1s;接受執(zhí)行命令到執(zhí)行控制的響應(yīng)時(shí)間<1s。系統(tǒng)總體結(jié)構(gòu)圖為:系統(tǒng)主要功能如下:⑴ 實(shí)現(xiàn)涵閘啟閉機(jī)的實(shí)時(shí)控制及啟閉狀態(tài)監(jiān)測(cè);⑵ 實(shí)現(xiàn)涵閘閘前、閘后水位及閘室內(nèi)環(huán)境的實(shí)時(shí)監(jiān)測(cè);⑶ 實(shí)現(xiàn)閘前、閘后、閘室及周邊環(huán)境的現(xiàn)地和遠(yuǎn)方監(jiān)視;⑷ 實(shí)現(xiàn)啟閉機(jī)的限位、過載等安全保護(hù)。通過視頻接入終端和控制解碼器,可對(duì)攝像機(jī)云臺(tái)的轉(zhuǎn)動(dòng)、鏡頭的變焦、變倍、變光圈及刮雨器進(jìn)行控制。黃河涵閘遠(yuǎn)程監(jiān)控系統(tǒng)質(zhì)量控制魏開松1,黃波2,端木凌云2( )摘 要:新時(shí)期黃河治理開發(fā)的標(biāo)志是:“堤防不決口、河道不斷流、污染不超標(biāo),河床不抬高”,根據(jù)新時(shí)期的治水思路,提出了建設(shè)好“三條黃河”(即“原型黃河”、“數(shù)字黃河”、“模型黃河”)的現(xiàn)代治黃理念。所有圖像通過視頻接入終端壓縮后通過網(wǎng)絡(luò)通信傳送到閘管所,以便進(jìn)行現(xiàn)場(chǎng)管理和控制,同時(shí)這些圖像經(jīng)以太網(wǎng)交換機(jī)和無線通信傳送到黃河水量調(diào)度管理系統(tǒng)網(wǎng)絡(luò)上,供各級(jí)水調(diào)中心調(diào)用。⑸ 實(shí)現(xiàn)閘室與閘管所、省局、黃委的語音通訊功能。⑹人機(jī)通信響應(yīng)時(shí)間:運(yùn)行人員發(fā)出一個(gè)新的圖像調(diào)用命令開始到100%畫面顯示在顯示器上為止的響應(yīng)時(shí)間不超過2s;在已顯示畫面上動(dòng)態(tài)數(shù)據(jù)更新周期不超過2s。⑹ 可提高硬件的代換能力。⑶ 在人機(jī)通信中設(shè)操作員控制權(quán)口令。⑷ 系統(tǒng)中任何單個(gè)元件的故障不會(huì)造成生產(chǎn)設(shè)備的誤動(dòng)。⑶有效地執(zhí)行高級(jí)語言程序。⑴數(shù)據(jù)庫的結(jié)構(gòu)和組織能支持應(yīng)用程序直接迅速存取數(shù)據(jù)及對(duì)數(shù)據(jù)的查詢修改和擴(kuò)充。通信軟件能監(jiān)視通信通道故障,并進(jìn)行故障切除和報(bào)警;網(wǎng)絡(luò)通信交換數(shù)據(jù)量及其頻度滿足功能要求和系統(tǒng)性能要求。通過超聲波水位計(jì)對(duì)閘前、閘后水位的準(zhǔn)確測(cè)定,確定涵閘引水流量。(3)The resolution of the sequence of events record: ≤ 5ms。(2)The system has breakpoint for experiment and failure isolation。(3)A control right mand is used on manputer munication。(2)The adequacy of the puter storage is over 40%。(3)Any hardware and software failure doesn’t affect the safety on people and system。(8)The average maintenance time of a failure is in 30ms. Available rateThe system design should adopt high reliability ponents, the realtime operating system should has practical running experience, the software should be practical, then the system can obtain high availability. The total failure time of the system should not exceed 1% of the running time during the oneyear guarantee time of after one year trial operation and equipment acceptance check. CPU loading rateThe processing ability of the monitoring puter has sufficient adequacy and ability storage over 50%, the CPU ability storage of PLC over 20%. System safetyThe specific measures for the system safety on operation, munication, hardware, software and fixed ware are as follows. Guarantee measures for operation safety(1)Every function and operation of the system has check and verification, warning and cancel would be took place when error is founded 。The field monitoring equipment PLC30000h。 at the same time the data are transmitted to monitoring center of all levels by wireless munication, and receive remote control mand, then automatically switch video source and video camera.(3)Realize realtime video monitoring of the gates by remote control camera’s rotating and zooming. 2. System function The system conclude: field measure system, video monitoring system, gate management monitoring station, system power, internet telephone system, internet