High-precision positioning method
A positioning method and high-precision technology, which is applied in location-based services, electrical components, wireless communications, etc., can solve problems such as low positioning accuracy requirements, affecting terminal positioning accuracy, and lack of in-depth research on network node locations. The effect of small positioning error and improving positioning accuracy
Inactive Publication Date: 2021-03-19
北京金坤科创技术有限公司
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However, this type of positioning method has two shortcomings: first, this type of method mostly uses the method based on signal strength RSSI to estimate the distance between the network node and the terminal, which can only be applied to occasions where the positioning accuracy is not high; There is no in-depth research on how to obtain the node location. Most studies assume that the location of the auxiliary base station can be obtained in advance by installing GPS equipment or manual configuration. This is only applicable to outdoor scenes or indoor scenes that can be deployed in advance.
However, in scenarios such as emergency rescue, reconnaissance and detection, the location error of the auxiliary base station deployment will also affect the positioning accuracy of the terminal, which is rarely considered in existing research
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[0058] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0059] figure 1 A schematic flow chart of a high-precision positioning method provided by Embodiment 1 of the present invention, as shown in figure 1 shown, including the following steps:
[0060] S101: The first device receives the location information, measurement information and confidence factor sent by the second device;
[0061] S102: The first device determines the positioning result of the first device according to the location information, measurement information and confidence factor sent by the second device, wherein the confidence factor is determined by the location information of the second device The estimation error of .
[0062] An embodiment of the present invention may include one or more first devices and second devices. Wherein, ...
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The invention discloses a high-precision positioning method, which can preferentially use the position information and measurement information of second equipment to obtain the positioning result of first equipment by introducing a confidence factor parameter for quantifying the authenticity of the position, and is suitable for instant high-precision positioning application in a strange unknown scene. The method comprises application fields such as emergency rescue and reconnaissance detection.
Description
technical field [0001] The invention relates to the field of high-precision positioning, in particular to a high-precision positioning method based on a confidence factor. Background technique [0002] In the outdoor environment, high-precision positioning is mainly achieved through the Global Navigation Satellite System (GNSS) and its augmentation system. However, the indoor environment is complex and multi-occluded, and the multipath effect is serious. To achieve high-precision positioning, there are certain limitations based on a single signal. For example, UWB-based positioning must be accurately deployed in advance of auxiliary base stations, while inertial navigation-based positioning cannot work alone for too long due to the error accumulation effect, and is not suitable for direct use in emergency rescue, reconnaissance and detection applications. [0003] For the above application scenarios, a feasible idea is to temporarily deploy auxiliary base station equipment ...
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IPC IPC(8): H04W4/02H04W64/00H04W4/029H04W4/021
CPCH04W4/02H04W64/00H04W4/023
Inventor 卢敏贺媛吴彤
Owner 北京金坤科创技术有限公司