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1、摘要隨著我國(guó)社會(huì)信息化的不斷發(fā)展,餐飲行業(yè)的點(diǎn)菜系統(tǒng)也在不斷地進(jìn)行信息化建設(shè),無(wú)線點(diǎn)餐系統(tǒng)已經(jīng)成為影響酒店檔次的主要因素之一。目前,市場(chǎng)上流行的無(wú)線點(diǎn)餐技術(shù)是一種基于PDA和802.11b無(wú)線局域網(wǎng)技術(shù)的無(wú)線全智能餐飲服務(wù)系統(tǒng)。這種方式的功耗比較高,而且需要培訓(xùn)專(zhuān)門(mén)的服務(wù)人員。ZigBee技術(shù)是一種低功耗、低成本、低復(fù)雜度的雙向無(wú)線通信技術(shù),可以為無(wú)線點(diǎn)餐系統(tǒng)提供很好的解決方案。本課題設(shè)計(jì)并實(shí)現(xiàn)了一個(gè)基于ZigBee的無(wú)線點(diǎn)餐系統(tǒng)。系統(tǒng)主要由三部分組成:點(diǎn)菜終端、服務(wù)器以及協(xié)調(diào)器。點(diǎn)菜終端設(shè)備采用S5P
2、V210微處理器作為控制核心,通過(guò)擴(kuò)展FLASH、SDRAM、觸摸屏和ZigBee無(wú)線模塊等部件構(gòu)建了點(diǎn)菜終端的硬件平臺(tái),在此基礎(chǔ)上移植了Linux操作系統(tǒng),并采用目前比較流行的圖形界面Qt設(shè)計(jì)出美觀的圖形用戶(hù)界面,通過(guò)串口連接實(shí)現(xiàn)了ARM和ZigBee模塊之間的通信。整個(gè)網(wǎng)絡(luò)的中心節(jié)點(diǎn)是協(xié)調(diào)器模塊,它用來(lái)實(shí)現(xiàn)ZigBee無(wú)線網(wǎng)絡(luò)和互聯(lián)網(wǎng)的數(shù)據(jù)傳輸,當(dāng)用戶(hù)使用點(diǎn)菜終端進(jìn)行點(diǎn)餐時(shí),所提交的訂單數(shù)據(jù)由協(xié)調(diào)器接收重新打包經(jīng)過(guò)互聯(lián)網(wǎng)發(fā)送給后臺(tái)服務(wù)器。點(diǎn)餐信息的數(shù)據(jù)維護(hù)和管理是由服務(wù)器部分來(lái)實(shí)現(xiàn)。本文設(shè)計(jì)的無(wú)線點(diǎn)
3、餐系統(tǒng)有較高的可行性,結(jié)構(gòu)緊湊,能夠達(dá)到我們所預(yù)期的效果,具有一定的市場(chǎng)使用價(jià)值和推廣意義。關(guān)鍵詞:無(wú)線點(diǎn)菜系統(tǒng);Zigmee,Ubuntu;OtAbstractWiththecontinuousdevelopmentofsocialinformationrealization,wirelessorderingsystemhasbecomeoneofthekeyfactorsforenhancingthequalityofcateringenterprises.Currently,thewireless
4、intelligentcateringservicesystemwhichisusedmorefrequentlyonthemarketisbasedonPDAand802.1lbWirelessLocalAreaNetworks.Thiswayneedspecialtrainingtowaitersanditwillwastelotsoftime.ZigBeetechnologyisakindoflowpowerconsumption,lowcost,lowcomplexityandtwo·waywi
5、relesscommunicationtechnology.ItCanprovideagoodsolutionforwirelessorderingsystem.ThesubjectdesignedandimplementedawirelessorderdishessystemwhichwasbasedonZigBeetechnology.Thewholesystemmainlyconsistsofthreeparts:thebackendserver,coordinatormoduleandthete
6、rminalmodule.Themostimportantpartisterminalnetworkwhichincludescoordinatorandterminalmodule.TheterminaldeviceadoptsARMmicroprocessorasthecontrolcenterandhardwareplatformisbuildedthroughexpandingFLASH,SDRAM,touchscreen,ZigBeewirelessmoduleandSOon.Onthisba
7、Sis,IneedtodoLinuxOStransplantationanddesignUSergraphicalinterfacewithQtapplicationsoftware.TheZigBeenodescommunicatewithARMthroughUART.ThecenterofthenetworknodeiscoordinatorwhichisusedtoimplementthedatatransmissionbetweentheInternetandZigBeewirelessnetw
8、ork.Whenusersstartaorderoperation,thecoordinatorwillreceivethemenudataandsendittothebackendserverthroughInteract.Thebackendserverisresponsiblefordatamaintenanceandmanagementbydealingwithreceiveddata.Thewirelessordersystemd