Ultra-wideband precise positioning system based on Min-Max multilayer perceptron fusion under signal interference
A multi-layer perceptron and signal interference technology, applied in positioning, radio wave measurement system, wireless communication and other directions, can solve problems such as fluctuation error of ranging information, and achieve the effect of improving accuracy, improving data processing efficiency and low complexity
Pending Publication Date: 2022-02-25
SOUTHEAST UNIV
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However, most indoor environments have a large number of obstacles, and the ranging information will have large fluctuation errors.
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[0074] In order to make the purpose, technical solutions and technical advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be fully described below in conjunction with the accompanying drawings. It should be emphasized that the illustrated embodiments of the present invention are only for illustrating the present invention and do not limit the scope of the present invention. After reading the present invention, equivalent modifications to various forms of the present invention by those skilled in the art should all fall within the scope defined by the appended claims of the present application.
[0075] Attached figure 1 The shown arrangement enables distance measurement.
[0076] UWB anchor points A0, A1, A2, and A3 are placed at the four corners, and the target Tag that needs to be positioned is placed in the area surrounded by the four anchor points (5000mm*5000mm*3000mm). The anchor poi...
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The invention provides an indoor precise positioning system, belongs to the technical field of intelligent Internet of Things, and solves the problem that abnormal fluctuation of data occurs due to the fact that ultra-wideband technology communication signals are easily affected by complex indoor environments in actual scenes. Aiming at the problems, a software part is designed and is mainly divided into a data preprocessing part, a feature extraction part, an abnormity judgment part, an indoor positioning part and a motion trail positioning part. The data preprocessing part is mainly used for filtering abnormal data; the feature extraction part is used for acquiring distance information and scene information of a target spot; the abnormity judgment model judges whether signal interference exists or not; the indoor positioning part considers signal interference to establish a mathematical model for accurate positioning; and the motion trail positioning part is used for accurately positioning and visualizing the motion trail in combination with the motion law of the target spot. The system has the characteristics of high positioning precision, low algorithm complexity and stable performance, and is suitable for real-time accurate positioning under the condition of signal interference.
Description
technical field [0001] The invention relates to an ultra-wideband precise positioning technology, belonging to the technical field of indoor positioning, in particular to an ultra-wideband precise positioning system based on Min-Max multilayer perceptron fusion under signal interference. Background technique [0002] Indoor positioning refers to the positioning of the position in the indoor environment. It mainly uses a number of technologies such as base station positioning, trusted positioning, pseudolite positioning, wireless communication and indoor maps, so that people or objects can be realized in a complex indoor environment. location information identification. Ultra-Wideband (UWB) precise positioning has a good performance in short-distance positioning due to its advantages of fast data transmission, low function and high positioning accuracy. However, there are a large number of obstacles in most indoor environments, and the ranging information will have large flu...
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IPC IPC(8): G01S5/10G06F17/12G06F17/16G06F17/18H04W64/00
CPCG01S5/10H04W64/00G06F17/12G06F17/16G06F17/18
Inventor 李菁欧阳西王鼎健杨康夏鑫刘娣李鹏
Owner SOUTHEAST UNIV