Positioning method under condition of GPS signal loss and electronic equipment
A GPS signal and positioning method technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc., can solve the problems of inaccurate positioning of GPS signals, inaccurate positioning of received signals, and unstable positioning. Solve location misjudgment, ensure accurate collection, high accuracy effect
Pending Publication Date: 2022-02-11
国网思极位置服务有限公司 +1
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Problems solved by technology
When the GPS signal is missing, such as when people are working in the power system environment, the positioning is inaccurate due to the interference of the received signal due to the presence of a large number of metals and strong electromagnetic fields in the environment
If there is a lot of occlusion in the environment, it will also lead to unstable positioning. The lack of GPS signal will cause inaccurate positioning.
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[0015] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0016] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art to which the present application belongs. "First", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not ...
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The invention provides a positioning method under the condition of GPS signal missing and electronic equipment, and the method comprises the steps: obtaining GPS data, inertial navigation data and pedestrian dead reckoning (PDR) data when it is determined that a received initial GPS signal is missing; performing first fusion processing on the GPS data and the inertial navigation data to obtain first fusion data; performing second fusion processing on the GPS data and the PDR data to obtain second fusion data; and performing third fusion processing on the first fusion data and the second fusion data to obtain a prediction result and a positioning result. According to the method, the problems of unstable positioning and positioning loss caused by shielding, electromagnetic signal interference and the like are solved through a high-precision satellite positioning and moving trajectory prediction and estimation method, so that the accuracy and stability of positioning information are ensured.
Description
technical field [0001] The present application relates to the field of positioning, and in particular to a positioning method and electronic equipment in the absence of GPS signals. Background technique [0002] In the current personnel positioning method, the positioning is mainly performed through the satellite positioning technology GPS. When the GPS signal is missing, such as when people are working in the power system environment, the positioning is inaccurate due to the interference of the received signal due to the presence of a large number of metals and strong electromagnetic fields in the environment. If there is a lot of occlusion in the environment, it will also lead to unstable positioning and the lack of GPS signals will cause inaccurate positioning. Contents of the invention [0003] In view of this, the purpose of this application is to propose a positioning method and electronic equipment in the absence of GPS signals to solve or partially solve the above...
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CPCG01S19/49
Inventor 王聪马胜张永欣袁晶丽王佩光赵建伟周航帆聂海涛
Owner 国网思极位置服务有限公司