Method and device for dynamically optimizing indoor positioning, medium and electronic equipment
An indoor positioning and dynamic technology, applied in the field of positioning, can solve the problems of affecting positioning accuracy, inaccurate accuracy, occlusion, etc., and achieve the effect of improving positioning accuracy
Active Publication Date: 2021-06-18
ZHEJIANG UNIVIEW TECH CO LTD
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- Application Information
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Problems solved by technology
However, in the trilateral positioning algorithm, there may be problems such as occlusion between the three anchor nodes and the target, resulting in inaccurate accuracy
Moreover, if the signal strength between any one of the anchor nodes and the target is affected, there will be a large deviation in the results of the trilateration positioning algorithm, which will affect the positioning accuracy.
Method used
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[0041] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures.
[0042] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of steps may be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The ...
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The embodiment of the invention discloses a method and a device for dynamically optimizing indoor positioning, a medium and electronic equipment. The method comprises the following steps: determining an initial reference position of an RFID tag by acquiring anchor node signal strength of the RFID tag and position information of each anchor node; determining a reference anchor node according to the anchor node signal strength; determining a circular ring region taking the reference anchor node as a center according to a preset confidence coefficient; taking end points of the circular ring region in a first preset direction and a second preset direction, and determining a semi-circular ring region according to the closeness degree of the position of each end point and the initial reference position, wherein the first preset direction is perpendicular to the second preset direction; and taking points in the semi-circular ring region by adopting a two-stage step length method, substituting the obtained points into a target optimization function, and determining a positioning point of the RFID tag. According to the technical scheme, the positioning precision of the indoor positioning technology can be improved in a dynamic optimization mode.
Description
technical field [0001] The embodiments of the present application relate to the technical field of positioning, and in particular to a method, device, medium and electronic equipment for dynamically optimizing indoor positioning. Background technique [0002] With the rapid development of science and technology, the accuracy requirements of indoor positioning are getting higher and higher. [0003] In the prior art, a trilateration positioning algorithm is often used to locate the target. Wherein, the trilateral positioning algorithm may be based on RFID (Radio Frequency Identification, radio frequency identification) technology, and more than three base stations receive signals of RFID tags, wherein the base station is an anchor node, and its location is known. Then according to the signal strength obtained by each base station, the distance between each base station and the radio frequency identification card is determined. However, in the trilateral positioning algorith...
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Login to View More IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 熊书华张键
Owner ZHEJIANG UNIVIEW TECH CO LTD