Three-dimensional positioning system based on UWB positioning
A three-dimensional positioning and base station technology, applied in the field of three-dimensional positioning, can solve the problems of inability to locate, deviation of data results, and strict requirements on the volume area of the test environment, and achieve the effect of improving the accuracy of three-dimensional space positioning and improving the accuracy.
Pending Publication Date: 2021-06-25
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology
[0003] (1) The existing monitoring system can only place a single or a small number of sensors. Due to the small number, the data results transmitted between the monitoring system and the PC end are biased or inaccurate, and affect the data analysis and test judgment. accuracy;
[0004] (2) The structure of the existing monitoring system is complex, it is not convenient to move and monitor in a large space, and there will be disadvantages such as inability to locate and low space utilization for multiple uses, resulting in stricter requirements for conditions such as the volume and area of the test environment; at the same time, it is inconvenient Real-time monitoring and use according to the user's wishes
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[0035] In order to solve problems with less sensor in engineering experiments and space positioning difficulties and inaccurate, a multi-sensor monitoring three-dimensional positioning system based on UWB positioning is proposed, including local base stations, removable detecting devices, multi-sensors, such as figure 1 Indicated.
[0036] By building a different UWB base station, a mobile terminal is placed within the coverage of each UWB base station, and the precision positioning of each base station and the mobile terminal is calculated using the TOA (TIME OF ARRIVAL, the arrival time algorithm) or TDOA, the arrival time difference algorithm); The mutual communication between the base stations is implemented within a certain range. The data frame is transmitted using the TOA two base stations and the reply is made, and the distance between the two base stations is obtained; the TDOA algorithm utilizes the TDOA algorithm, and the transmission time of the two different base stat...
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A three-dimensional positioning system based on UWB positioning comprises UWB base stations and mobile UWB base stations, and the method comprises the following steps: (1) establishing the UWB base stations, and respectively calculating the distance between the two UWB base stations; (2) calculating the distance from the mobile UWB base station to other UWB base stations, and calculating the absolute position of each mobile UWB base station; (3) measuring the distance difference between the two UWB base stations and the mobile UWB base station by taking the starting point of the mobile UWB base station and the two UWB base stations as termination points, and positioning the mobile UWB base station; and (4) selecting other UWB base stations as termination points, and calculating to obtain three-dimensional space positioning of the mobile UWB base station. Three-dimensional space real-time positioning is achieved through UWB positioning, the three-dimensional space positioning precision of the sensor can be improved, and high-efficiency monitoring of multiple sensors is formed. Through cooperative use of the UWB base station and the sensor on the mobile device, real-time monitoring data transmission and position information transmission are realized, and the accuracy of a data analysis result in an engineering test is improved.
Description
Technical field [0001] The present invention relates to the technical and sensor monitoring technology of three-dimensional positioning. Background technique [0002] In an existing monitoring implementation project, it is necessary to perform real-time monitoring by monitoring the data of vibration, noise or temperature to facilitate the data analysis and judgment of our engineering test link, but the existing monitoring system has the following issues. : [0003] (1) Existing monitoring system can only place a single or fewer sensor, due to fewer quantities, resulting in deviation or inaccurate data results transmitted between the monitoring system and the PC side, and affects data analysis, for the test judgment accuracy; [0004] (2) The existing monitoring system is complicated, not convenient for mobile and large spatial monitoring, and multiple uses will not be able to position, low space utilization rate, etc., resulting in a demanding requirements for the conditions of v...
Claims
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IPC IPC(8): G01S5/02G01S11/02
CPCG01S5/02G01S11/02
Inventor 周韶泽冯显锟
Owner DALIAN JIAOTONG UNIVERSITY