矿井移动目标无线定位技术分析

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1、ABSTRACTThecoalresourceisimportantfoundationenergyinourcountryandplaysanimportantroleinthedevelopmentofnationaleconomy.Butintheprocessofcoalmining,thefrequentlyhappenedaccidentsnotonlyendangerthepersonnel'slivesandcausegreateconomicloss,butalsoleaveabadimpactonsociety.Realizingthepositioningofperson

2、nelandlocomotiveinminecannotonlyachievescientificdispatchingandreal-timecontrol,improvethemineproductivityindailyproduction,butalsoobtaintheirpositioninformationtimelywhenaccidenthappens,whichhelpstoimprovetherescueefficiencyandensurethesafetyofthepersonnel'slives.Thus,realizingthepositioningofperso

3、nnelandlocomotiveinmineisofgreatsignificancetoenhancethelevelofmineproductionsafety.Withtherapiddevelopmentofwirelessnetworkandmobilecommunicationtechnology,indoorpositioningusingwirelesslocalareanetwork(WLAN)isbecomingaresearchhotspot.Inthisdissertation,WLAN-basedwirelesspositioningtechnologyisappl

4、iedtothemineanditsresearchhotspot—fingerprintpositioningalgorithmismodifiedcombiningwithone-dimensionallinearfeatureofminelaneway.Tosolvetime-consumingandlow-efficiencyprobleminthetrainingphaseoffingerprintpositioningalgorithm,aneuralnetworkinterpolationalgorithmbasedonregiondivisionisproposed,which

5、usesthesignalstrengthreceivedbyreferencepointsinthesameregiontorealizeinterpolation.Theinterpolationalgorithmproposedinthisdissertationensurestheaccuracyofinterpolationandimprovestheefficiencyoftrainingphaseoffingerprintpositioningalgorithm.Andinthepositioningphase,awirelesspositioningalgorithmbased

6、onsignalstrengthcorrectnessjudgmentisproposedtodealwithinaccuratesignalstrengththatmovingpersonnelandlocomotivemayreceive.Inordertoensurethepositioningaccuracy,thealgorithmjudgesthesignalstrengthreceivedbythetargetwhichisbeingpositionedwhethercorrectornottoexcludeinaccuratedata.Finally,theproposedin

7、terpolationalgorithmandpositioningalgorithminthisdissertationaresimulatedbyMatlab.Thesimulationresultshowsthat,thealgorithmsproposedinthisdissertationimprovetheefficiencyoftrainingphaseandthepositioni