Intensive-calculating GPS receiver based on mobile communication network and positioning method of same

A GPS receiver and mobile communication network technology, applied in the field of centralized computing of GPS receivers, can solve the problems of limited positioning accuracy, high power consumption, and high price of GPS chips, achieve low power consumption and cost, reduce working time, and improve positioning The effect of precision

Active Publication Date: 2013-09-25
SOUTH CHINA UNIV OF TECH
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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 continuousl

Method used

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  • Intensive-calculating GPS receiver based on mobile communication network and positioning method of same
  • Intensive-calculating GPS receiver based on mobile communication network and positioning method of same
  • Intensive-calculating GPS receiver based on mobile communication network and positioning method of same

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Example Embodiment

[0035] Example 1:

[0036] Such as figure 1 with figure 2 As shown, the GPS receiver of this embodiment includes a user terminal and a server connected through a mobile communication network. The user terminal is a mobile terminal and includes a radio frequency front-end module, a controller module, a data buffer module, and a wireless data transmission module.

[0037] Such as figure 1 with figure 2 As shown, the positioning process of the GPS receiver in this embodiment is as follows:

[0038] 1) The user end is in low power consumption mode by default. The user end sends a positioning request to the server at a certain moment. Each module of the user end starts to work. The RF front-end module outputs intermediate frequency data at a sampling rate of 16.368MHz with a bit width of 2bit. The intermediate frequency data is written into the data buffer module under the control of the controller module. At the same time, the controller module reads the intermediate frequency data o...

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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 ...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W64/00H04W88/02
CPCY02D30/70
Inventor 姜小波梁祥泰
Owner SOUTH CHINA UNIV OF TECH
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