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1、摘要隨著我國社會信息化的不斷發(fā)展,餐飲行業(yè)的點菜系統(tǒng)也在不斷地進行信息化建設,無線點餐系統(tǒng)已經(jīng)成為影響酒店檔次的主要因素之一。目前,市場上流行的無線點餐技術是一種基于PDA和802.11b無線局域網(wǎng)技術的無線全智能餐飲服務系統(tǒng)。這種方式的功耗比較高,而且需要培訓專門的服務人員。ZigBee技術是一種低功耗、低成本、低復雜度的雙向無線通信技術,可以為無線點餐系統(tǒng)提供很好的解決方案。本課題設計并實現(xiàn)了一個基于ZigBee的無線點餐系統(tǒng)。系統(tǒng)主要由三部分組成:點菜終端、服務器以及協(xié)調(diào)器。點菜終端設備采用S5P
2、V210微處理器作為控制核心,通過擴展FLASH、SDRAM、觸摸屏和ZigBee無線模塊等部件構建了點菜終端的硬件平臺,在此基礎上移植了Linux操作系統(tǒng),并采用目前比較流行的圖形界面Qt設計出美觀的圖形用戶界面,通過串口連接實現(xiàn)了ARM和ZigBee模塊之間的通信。整個網(wǎng)絡的中心節(jié)點是協(xié)調(diào)器模塊,它用來實現(xiàn)ZigBee無線網(wǎng)絡和互聯(lián)網(wǎng)的數(shù)據(jù)傳輸,當用戶使用點菜終端進行點餐時,所提交的訂單數(shù)據(jù)由協(xié)調(diào)器接收重新打包經(jīng)過互聯(lián)網(wǎng)發(fā)送給后臺服務器。點餐信息的數(shù)據(jù)維護和管理是由服務器部分來實現(xiàn)。本文設計的無線點
3、餐系統(tǒng)有較高的可行性,結構緊湊,能夠達到我們所預期的效果,具有一定的市場使用價值和推廣意義。關鍵詞:無線點菜系統(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