如果您无法下载资料，请参考说明：
1、部分资料下载需要金币，请确保您的账户上有足够的金币
2、已购买过的文档，再次下载不重复扣费
3、资料包下载后请先用软件解压，在使用对应软件打开
附录A外文文献ACoalMineEnvironmentalMonitorSystemwithLocalization=1\*ROMANI.RESEARCHSTATUSAsanimportantenergy,coalplaysapivotalroleintheeconomicdevelopment.Coalminemonitoringsystem,istheimportantguaranteeforcoalminesafetyandhighefficiencyproduction.Inordertoensurethesafeoperation,theinstallationofenvironmentmonitoringnodeintunnelstoreal-timedetectionisveryimportant.However,commonlyusedtraditionalmonitoringnodewiredconnectiontoobtaincommunicationwiththecontrolsystem,thisnodeexistwiringdifficulties,expensiveandothershortcomings.Incontrast,wirelesssensornodecanbeeasilywithcurrentminemonitoringnetworkconnection,andgoodcompatibility,facilitateconstitutedminegasmonitoringnetwork,tosuitvarioussizeofmineapplications.Sincewirelessnodesarebatterypowered,socompletelyoutoftheshacklesofthecable,shortentheconstructionperiodcanbearrangedatanytimewheretheneedtouse.TheZigbeewirelesscommunicationtechnologyisusedinthiscoalmineenvironmentalmonitorsystem.Thisisanewshort-range,lowcomplexity,lowpower,lowdatarate,low-costtwo-waywirelesscommunicationtechnology.Now,wirelesssensornetworkproductbasedonZigbeetechnologyarequantityandvariety,buttherealproductcanbeappliedinundergroundenvironmentsofspecialsensornodeisveryfew.Thesensornodethatwedesignedinthesystemistrulyabletoapplytoin-wellenvironment,itthroughthewirelesssensornodesecuritycertification.Atthesametime,duetothespecialnatureofthewirelessnetworkisthatitcanspreadthewirelesssignal,wecaneasilylocatestaffforcoalminesafetymonitoringprovidesmoreprotection.=2\*ROMANII.SYSTEMARCHITECTUREThissystemisacomprehensivemonitoringsystemwhichiscombinedwithsoftwareandhardware.Hardwarepartincludeswirelessmobilenodesandfixednodeswhichweredeployedintheundergroundtunnel,themainfunctionofthemistocollectcoalmineenvironmentdataandrequireperson’slocation.SoftwarepartreferstothePCmonitoringsoftwarewhichisdesignedinVC++isusedtosummarizeanddisplaythedataofeachnode.Monitoringnodeisdividedintomobilenodesandfixednodes;theyareusingZigbeeprotocolforwirelesstransmiss
立即下载
