Research On The Method Of Mine Connect Survey Based On Wireless Location Technology

With the rapid development of economic, there are more and more of mine connectsurvey engineering in China, but the research of mine connect survey is less; the indoorwireless positioning technology is booming this year, which provide a new idea of mineconnect survey. Therefore, this dissertation studied the basic technology of indoor wirelesspositioning, and provide a new wireless location technologies, then research on applying thiswireless location technology to mine connect survey.This dissertation summarizes the basis of recent indoor positioning methods, concludesthat the results of non-parametric positioning greatly influenced by environmental factors,such as temperature changes can cause changes in signal strength, and its positioning model isnot tight. thus it’s positioning accuracy is low, and engineering applications differ greatly. Theparameters positioning have already applied in GPS positioning, cellular positioning, radarpositioning successfully, the positioning accuracy has been able to meet the actual needs ofsome projects. And an important part of parameters positioning is the estimation of distanceparameters(distance measurement), so at the conclusion of some ranging method such asRSSI ranging, pulse ranging, carrier phase ranging and pseudo-random code ranging, come toa conclusion that carrier phase ranging and pseudo-random code ranging have high rangingaccuracy and is easy to realize automatic distance measurement.This dissertation presents the overall framework of a new method of wireless location,which based on studying wireless location principle; presents a phase-shift method a methodof determining the whole week unknown number. When the observation phase method usingtwo-way ranging, which can eliminate the ranging error caused by synchronized clock (phase).Established positioning model, lists the error equation, calculated the unknown pointcoordinates according to the principle of least squares adjustment solution. And taking intoaccount the accuracy of unknown points’ approximation is not enough, which may lead tonon-convergence iterations, so present a equation to calculate the approximate coordinates of an unknown point.In order to apply this new method of wireless location into mine connect surveying,established a model of mine connect surveying. In order to establish connection between theresults of this new wireless location methods and national coordinate system, studied theeffect of positioning result caused by distortion of projection, and skillfully use ofcompensating level, convert the results into national unified coordinate system by transform ittwice. At last, deduced the assessment formula of accuracy (mainly point precision) which isthe results of positioning solving.