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A high-precision ranging and positioning method based on 60ghz pulse signal

A pulse signal, high-precision technology, applied in the field of positioning, can solve problems such as low positioning accuracy and inability to achieve centimeter-level accuracy, and achieve the effects of strong anti-interference ability, high positioning accuracy, and short pulse duration.

Active Publication Date: 2018-01-16
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

[0004] The present invention provides a high-precision wireless positioning method based on a 60GHz pulse signal to achieve centimeter-level positioning accuracy in order to solve the problem that the existing positioning technology has low positioning accuracy and cannot achieve centimeter-level precision

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  • A high-precision ranging and positioning method based on 60ghz pulse signal
  • A high-precision ranging and positioning method based on 60ghz pulse signal
  • A high-precision ranging and positioning method based on 60ghz pulse signal

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Embodiment 1

[0035] Embodiment 1. This embodiment provides a high-precision wireless positioning method based on 60GHz pulse signals, including a positioning server and at least 3 base stations. The base stations are equipped with array antennas, and the nodes to be positioned are equipped with omnidirectional antennas, such asfigure 1 As shown, the wireless positioning method includes the following steps:

[0036] S1. System initialization: determine the coordinate position of each base station, and perform clock synchronization on each base station;

[0037] S2. Carry out beam training for each base station array antenna in turn, find the optimal beam pointing of each base station array antenna, satisfy the beam pointing of each base station and cover the node to be positioned within its beam range;

[0038] S3. The node to be positioned generates and transmits a 60GHz pulse signal;

[0039] S4. Each base station receives the 60GHz pulse signal in its determined beam pointing direction, ...

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Abstract

The invention discloses a high-precision wireless positioning method based on a 60GHz pulse signal. The method involves a positioning server and at least three base stations, wherein each base station performs directional transmission by switching wave velocity based on array antennas, and an omindirectional antenna is used as a node to be positioned. The wireless positioning method comprises the following steps: (1) initializing the system; (2) sequentially performing wave beam training for each base station array antenna to find out the optimal wave beam direction between each base station array antenna and the node to be positioned; (3) generating the 60GHz pulse signal and emitting through the node to be positioned; (4) receiving the 60GHz pulse signal through each base station according to the determined wave beam direction, and recording the transmission delay of the pulse signal arriving at each base station; (5) sequentially calculating the distance from each base station to the node to be positioned through the positioning server; (6) calculating the coordinate of the node to be positioned. The positioning method is high in capacity of resisting disturbance and high in positioning precision; the base station ends receive the signal by a directional manner, and thereby, the distance measuring and distance positioning of 60GHz can be effectively improved.

Description

technical field [0001] The invention relates to a positioning method, in particular to a high-precision ranging and positioning method based on a 60GHz pulse signal. Background technique [0002] At present, people's demand for indoor high-precision navigation, positioning, and ranging is becoming more and more urgent. In many public service fields, if high-precision positioning data can be obtained, events that occur at key points can be captured for navigation and decision-making. In particular, there is a great demand for centimeter-level high-precision navigation and positioning technology in the fields of precise positioning of indoor robots, production management (especially the positioning and monitoring of dangerous goods, and the positioning and monitoring of personnel and equipment in dangerous areas). At present, the wireless positioning technologies that can be applied indoors mainly include the following types: the positioning accuracy of the short-distance posi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
CPCY02D30/70
Inventor 王景景施威刘琚崔学荣董新利李娟马扬扬
Owner QINGDAO UNIV OF SCI & TECH
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