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A low power consumption satellite positioning method, system and electronic equipment

A satellite positioning system and satellite positioning technology, applied in the field of systems and electronic equipment, and low-power satellite positioning methods, can solve the problems of reduced satellite positioning accuracy, large time synchronization errors, and inability to collect data in the cloud.

Active Publication Date: 2021-04-20
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, the disadvantage of this method is that the data collected by the satellite is stored in the terminal, and the data cannot be collected by the cloud, so it needs to be opportunistically uploaded to the cloud
Therefore, it does not support online positioning, and can only perform offline positioning, which is used for post-event position recovery
Moreover, the time synchronization error between the terminal and the cloud is large, which will seriously reduce the accuracy of satellite positioning

Method used

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  • A low power consumption satellite positioning method, system and electronic equipment
  • A low power consumption satellite positioning method, system and electronic equipment
  • A low power consumption satellite positioning method, system and electronic equipment

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[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the present 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, not to limit the present application.

[0035] In the prior art, traditional satellite positioning algorithms usually use all visible satellites to calculate satellite ephemeris and participate in navigation and positioning calculations. Therefore, the energy consumption of satellite positioning is relatively high. In this application, by designing a selective satellite synchronization algorithm, only a part of the visible satellites are used for positioning, and the energy consumption of satellite positioning is reduced while ensuring the positioning accuracy. The algorithm is specifically: if there is no occlusion area (such a...

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Abstract

The application relates to a low power consumption satellite positioning method, system and electronic equipment. The method includes: step a: selecting a set number of satellites with the highest signal strength according to the last satellite positioning result; step b: calculating the weight of each satellite by using the gradient descent method, and selecting from all available satellites according to the weight of each satellite Select a set number of satellites with the largest contribution; step c: use the intersection of the satellite with the largest signal strength and the satellite with the largest contribution as the optimal satellite, and perform satellite positioning through the optimal satellite. This application uses the gradient descent method to calculate the satellite weight, and uses the satellite weight and signal strength to select the optimal satellite, and performs satellite positioning through the optimal satellite. Compared with the existing technology, this application can reduce the positioning calculation while ensuring the positioning accuracy and greatly reduce energy consumption for positioning.

Description

technical field [0001] The application belongs to the technical field of satellite positioning, and in particular relates to a low-power consumption satellite positioning method, system and electronic equipment. Background technique [0002] In modern society, location-based services have become a basic requirement and are widely used in various scenarios such as vehicle navigation, motion track recording, social network sharing, and finding nearby taxis and restaurants. In an outdoor environment, satellite positioning (including GPS, Beidou, Galileo, Glolas and other satellites) can provide a position including longitude and latitude information, and can provide an average positioning accuracy of 10 meters in a clear and interference-free environment. [0003] With the popularity of smart terminals, people's demand for outdoor navigation and positioning continues to grow. However, the high complexity of the satellite positioning algorithm and the energy consumption of satel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/42
CPCG01S19/423
Inventor 陈孔阳谭光肖钟凯刘毅
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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