A method for selecting a positioning base station
A technology for locating base stations and base stations, which is applied in services based on location information, wireless communications, electrical components, etc.
Active Publication Date: 2021-07-06
ZHEJIANG UNIV
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Problems solved by technology
[0006] The invention provides a method for selecting a positioning base station, which divides and screens the base stations according to the distribution of the base stations in each quadrant of the coordinate system, and finally determines the optimal base station to realize positioning, which solves the problem of selecting the most optimal base station in a multi-base station environment. The technical problem of optimal positioning of base stations can not only achieve the effect of saving base station resources, but also meet the requirements of high-precision positioning in practical applications
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[0022] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0023] Such as image 3 As shown, the present invention provides a positioning base station selection method, comprising the following steps:
[0024] Step 1. All base stations send broadcast information, which includes their own location information. At the same time, the tag to be tested receives the broadcast information within its own communication range, and stores the location information of these base stations into the set D;
[0025] Step 2. For the first positioning, take the origin coordinates (0,0) of the positioning system as the origin, and take the x-y axis of the current positioning system as the coordinate axis to establish a two-dimensional plane coordinate system K, and then position. The positioning position is the origin, and the x-y axis of the current positioning system is used as the coordinate axis to establish a two-dimensional plane c...
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The invention relates to a method for selecting a positioning base station. According to the distribution of the base stations in each quadrant of the coordinate system, the method divides and screens the base stations, selects the optimal base station to realize positioning, and solves the problem of selecting the optimal base station in a multi-base station environment. Technical issues with locating base stations. This method first establishes a new coordinate system based on the last positioning result and the system coordinate system; according to the distribution of base stations in each quadrant of the newly created coordinate system, all base stations within the communication range are divided into different sets; the base stations near the coordinate axes are separately divided into One set is processed; the positioning base stations are selected from each set respectively. This method can not only achieve the effect of saving base station resources, but also meet the business requirements of high-precision positioning in practical applications, and also ensure that the entire screening process is simple and efficient, avoiding the tedious calculation process of violent screening, and ensuring the real-time performance of the positioning system.
Description
technical field [0001] The invention relates to the field of base station positioning, in particular to a method for selecting a positioning base station. Background technique [0002] The positioning system usually adopts wireless communication, base station positioning, inertial navigation positioning and other technologies to integrate to form a position positioning system. Base station positioning technology includes TOA, TDOA, PDOA and other implementation methods. Most of them need to measure the distance according to the time stamp of wireless message sending and receiving between the tag to be tested and the base station, so as to locate according to the distance data from multiple groups of tags to be tested to the base station. [0003] In two-dimensional space, at least three base stations are needed to realize the positioning based on the distance measurement between the tag to be tested and the base station. The schematic diagram of the principle is as follows: ...
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IPC IPC(8): H04W4/02H04W64/00
CPCH04W4/023H04W64/00
Inventor 王勇张玉坤
Owner ZHEJIANG UNIV