Wireless high-precision long-distance outdoor positioning system

A high-precision, long-distance technology, used in radio wave measurement systems, positioning, and measuring devices, etc., can solve the problems that the positioning signal is easily interfered by external factors, the system is susceptible to external interference, and can only reach the decimeter level. Strong anti-multipath interference ability, not easy to external interference, fast data transmission speed
CN112965029APending Publication Date: 2021-06-15INST OF INFORMATION TECH OF GUET
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF INFORMATION TECH OF GUET
Publication Date
2021-06-15

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Abstract

The invention discloses a wireless high-precision long-distance outdoor positioning system, which belongs to the technical field of outdoor wireless positioning and comprises a positioning tag, a base station I, a base station II, a base station III, a switch module and an upper computer module, wherein the positioning tag is arranged on a measured object, and the positioning tag comprises a tag main control unit, a tag UWB unit, a first wireless communication unit, a first serial port conversion unit and a tag power supply unit; and the base station I, the base station II and the base station III are arranged at preset positions in a positioning space, and each of the base station I, the base station II and the base station III comprises a base station main control unit, a base station UWB unit, a wireless communication unit II and a serial port conversion unit II. The wireless high-precision long-distance outdoor positioning system utilizes the UWB technology as the core technology of the positioning system, the DWM1000 chip serves as radio frequency transceiving hardware, centimeter-level accurate positioning can be achieved, Kalman filtering and the Chan algorithm are fused for positioning calculation, and the positioning precision of the positioning system in the severe indoor environment can be improved.
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Description

technical field

[0001] The invention relates to the technical field of outdoor wireless positioning, in particular to a wireless high-precision long-distance outdoor positioning system. Background technique

[0002] After retrieval, Chinese Patent No. CN105427549A discloses a positioning system and method based on GPS. Although the invention can realize personnel positioning, its positioning accuracy is not high, and the system is susceptible to external interference; the positioning system is to determine the spatial position as the goal And constitute an interrelated aggregate or device; the current common positioning system mainly adopts GPS (Global Positioning System), Beidou system, electronic tags, Wifi, infrared, ultrasonic and WaveLAN, among which GPS and Beidou system, although The positioning range is large, but the positioning accuracy is not high (meter level); while electronic tags and Wifi, although the positioning accuracy is relatively high, but their positio...

Claims

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