EPA Wireless工業(yè)實時網(wǎng)絡系統(tǒng)的鏈路可靠性與通信調(diào)度研究.pdf

1、浙江大學控制科學與工程學系碩士學位論文EPAWireless工業(yè)實時網(wǎng)絡系統(tǒng)的鏈路可靠性與通信調(diào)度研究姓名：張赫男申請學位級別：碩士專業(yè)：控制理論與控制工程指導教師：馮冬芹20100101AbstractTheprimerequirementofindustrialwirelessisreliableandreal—timecommunlcatlonqualityAimingatthesedemands，aclustertreebase

2、dprototypewirelessnetwork1spresentedi11thisthesis，namedEPAwirelessAfterthat，awirelesscommunicationmacro—cycIeandtheguidelineofcorrespondingtimeslotsusageandmediaaccessscheduleforeachwlrelessdevicearealsoproposedUnderthem

3、acrocyclebasedcommunicationschedule，ourstudyfocusesonthereliabletransmissionproblemofasinglewirelessmessageinthefirstplaceBasedonIa略eexperimentaldata，alilll【qualityestimatorisdevelopedinthisthesis，whichlSused1nnetworktop

4、ologyorganizationandlinkqualityestimationduringmessagerouting，satlslyingtherequirementofareliableprocessdatadeliveryMoreover’todealwiththescheduleproblemofmultipledevices’datatransmls810nwlthlnamacr0一cycleforEPAwireless，

5、atimesynchronizationmethodisproposedtOaV01dtlmesIotcollisionFormultihopwirelessnetworks，ourtimesynchronizationmethodISbasedonsinglemessagedeliveryWithinasinglehop，timesynchronizationamongmaste。andslaVescanbeachievedpreci

6、selythroughthedeliverofjustasinglebroadcastmessage，m8xlmallysavingthene鉚orkresourcesARerthat，asetofimprovedtimeslotassignmentalgorithmforthecirclePenodofcommunicationmacrocyclearealsopresent，whichcanguaranteereal—timetra

7、nsml8810nandaflexiblemacrocycleThetimeslotassignmentschemecoversthreefrequentlYusedworkingmodesinpracticalapplicationsTheshortestframeformedcanguaranteerealtlmecommunicationandisalsofacilitatedformessageandslotintegratio

8、nduringmessageroutlng，sincetimeslotsallocatedtoasinglenodearecontinuousDuringallocationprocesses，thealgorithmsaredistributedandlightweightedTheexperimentresultedf如mapmtotypesystemshowsthatourschemecanachieveagoodreliabil

9、ityWhileinheritinghighreIiabilityperf≯rrnanceoftraditionalTDMA，thesealgorithmscanachievelowlatencydatatransmissionwithminimizednumberofconflictfreetimeslotsKeywords：lndustrialwillessnetwork，EPAwireless，LQI(Linkqualityind