Centralized computing gps receiver and its positioning method based on mobile communication network

Abstract

The invention discloses an intensive-calculating GPS receiver based on a mobile communication network and a positioning method of the GPS receiver. The receiver comprises a client and a server which are connected. The positioning method comprises the steps that a positioning request is sent to the server by the client, and intermediate-frequency data are sent to the server by the client; after receiving the positioning request of the client, the server receives the intermediate-frequency data sent by the client, and calculation of the position of the client is achieved through a rough time navigation method; a positioning result is sent to the client by the server; when receiving the positioning result, the client finishes positioning once, is shifted to a low-power-consumption mode, and waits for a next-time positioning request. The GPS receiver utilizes the advantages of intensive calculating, large-power-consumption signals are processed by the server, GPS measurement coordinates and actual coordinates of a plurality of base stations are combined to calculate atmosphere delay models of local areas, a precise atmosphere delay model is provided to the client, and therefore positioning precision of the client is improved.

Description

technical field [0001] The invention relates to a GPS receiver and its positioning method, in particular to a mobile communication network-based centralized computing GPS receiver and its positioning method, belonging to the field of GPS receiver centralized computing. Background technique [0002] In recent years, the rise of smart phones and tablet computers, especially the very popular location-based service (LBS), has stimulated the popularization of GPS receivers. GPS receivers have become the preferred choice for portable devices such as smart phones and tablet computers. Standard configuration. [0003] my country's satellite navigation market has great potential. According to the estimates of the Global Navigation and Positioning Association, the current market size of China's satellite navigation market is about 100 billion yuan, and the total output value of the satellite navigation industry in 2015 will reach 250 billion yuan. According to Ran Chengqi, director ...

AI Technical Summary

Problems solved by technology

[0004] For GPS receivers installed on portable devices such as smartphones and tablet computers, low power consumption, high precision, and low cost have always been the pursuit of the industry, but the current GPS receivers have the following problems: 1) currently installed on portable The mainstream GPS receiver of the device, because the internal signal tracking loop needs to track satellite signals continuously and stably, is in a continuous working state after the positioning function is turned on, and consumes a lot of power. Finally, the battery life is only 5 to 6 hours; 2) Due to the lack of differential GPS support in China, the positioning accuracy is limited to about 6m; 3) The price of the GPS chip is still relatively high, which limits the use of GPS receivers. The popularity of the consumer electronics market

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