UWB key two-dimensional positioning method based on course angle cumulative integral correction

The invention provides a UWB key two-dimensional positioning method based on course angle cumulative integral correction, which comprises the following steps: S1, awakening a key tag by using a vehicle-mounted base station terminal, performing data acquisition through a sensor at a key end, and perf...

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Bibliographische Detailangaben
Hauptverfasser:	LI HUI, HUANG SONGTAO, GUO DESUI, KANG JINCAN, LIANG MENGHAO, WANG CHAOYANG, FU SHAOZHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATING RANDOM NUMBERS GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION REGISTERING OR INDICATING THE WORKING OF MACHINES SURVEYING TESTING TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	The invention provides a UWB key two-dimensional positioning method based on course angle cumulative integral correction, which comprises the following steps: S1, awakening a key tag by using a vehicle-mounted base station terminal, performing data acquisition through a sensor at a key end, and performing stride frequency detection and course angle calculation by using the acquired data to obtain a stride frequency and a course angle of a user; s2, through stride frequency detection, when it is detected that a user moves one step, UWB communication is carried out on a vehicle-mounted base station and a vehicle key, and the distance between the vehicle key and the vehicle is obtained through bidirectional bilateral distance measurement; and S3, multiplying the stride frequency by the stride length to obtain the moving distance of the user, fusing the moving distance with the distance information between the vehicle key and the vehicle, obtaining the two-dimensional position information of the key relative to t