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A positioning method and system based on binary classification technology

A positioning method and two-classification technology, which are applied in the field of positioning methods and systems based on the two-classification technology, can solve the problems that signal propagation is easily affected by the environment, poor robustness and low precision, and achieve good robustness, comprehensive consideration, Predict the effect of accurate results

Active Publication Date: 2020-11-06
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a positioning method and system based on binary classification technology to solve the problems of low precision, poor robustness, and signal propagation easily affected by the environment in the positioning process

Method used

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  • A positioning method and system based on binary classification technology
  • A positioning method and system based on binary classification technology
  • A positioning method and system based on binary classification technology

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Experimental program
Comparison scheme
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Embodiment 1

[0030] see figure 1 , this embodiment provides a positioning method based on binary classification technology, including the following steps:

[0031] S1: Carry out grid division of the area to be tested, collect historical samples including grid division numbers in the area to be tested, and construct feature sets, training sets, and verification sets based on historical samples.

[0032] S2: Calculate the grid feature according to the feature set, where the grid feature includes the similarity index and grid related information between the historical sample and the grid. In this embodiment, the grid-related information includes frequency statistics of the grid being visited, and historical access information of the grid-located device.

[0033] S3: The samples in the training set are regarded as positive samples, and the negative samples are adjusted according to the positive samples, the training candidate set is constructed according to the positive samples and the negati...

Embodiment 2

[0071] Corresponding to the above method embodiments, this embodiment provides a positioning system based on binary classification technology, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program Steps to implement the method described above.

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Abstract

The invention relates to the technical field of positioning in a wireless local area network, discloses a positioning method and system based on a binary classification technology, and aims to solve the problems that the precision is low, the robustness is poor and signal propagation is easily affected by the environment in the positioning process. The method comprises the following steps: carrying out grid division on a to-be-tested area, collecting historical samples including grid division numbers in a to-be-tested area, and constructing a feature set, a training set and a verification set;calculating grid features according to the feature set, regarding samples of the training set as positive samples, obtaining negative samples through adjustment according to the positive samples, constructing a training candidate set according to the positive samples and the negative samples, and obtaining a first model according to the grid features and the training candidate set; and verifying whether the error of the first model is within a set range or not by adopting a sample of the verification set, if the error belongs to the set range, indicating that the model training is successful, and positioning the specific position of the real-time WiFi information by adopting the first model.

Description

technical field [0001] The invention relates to the technical field of positioning in wireless area networks, in particular to a positioning method and system based on binary classification technology. Background technique [0002] At present, the global positioning system (GPS) has a very good positioning effect outdoors, and the acceptable error of the outdoor positioning system is tens of meters, but in the indoor scene, people hope to get a more accurate indoor position, which requires a higher positioning precision. Although the current technologies, such as Bluetooth, Zigbee, and ultrasonic positioning technology, have made great progress, these technologies have specific requirements for positioning hardware devices and application environments, and there are problems such as poor economy. In a large-scale commercial environment, there are still challenges such as inaccurate positioning signals, incomplete environmental information, missing information, and too close...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/021H04W64/00G06K9/62
Inventor 王斌吴伟康盛津芳宋虹关王豪董强强
Owner CENT SOUTH UNIV
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