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Low-power consumption GPS positioning method and system

A technology of GPS positioning and low power consumption, applied in the field of navigation and positioning, can solve the problems of high power consumption and low power consumption, and achieve the effects of reducing use and maintenance costs, prolonging battery life and life cycle

Pending Publication Date: 2021-04-06
杭州飞舸科技有限公司
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Problems solved by technology

[0006] Aiming at the shortcomings of high power consumption in the prior art, the present invention provides a low-power GPS positioning method and system, in which the real-time ephemeris is obtained by the base station gateway, and the broadcast coverage is continuous, and the real-time ephemeris is received after the positioning device is awakened , its GPS module enters the hot start mode to obtain specific location information and greatly reduce power consumption

Method used

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  • Low-power consumption GPS positioning method and system

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Embodiment

[0033] Such as figure 1 As shown, the low power consumption GPS positioning method comprises the following steps:

[0034] S1: The GPS module of the base station gateway acquires local location information and local time information in real time;

[0035] S2: The base station gateway regularly interacts with the A-GNSS server to obtain real-time ephemeris through the wireless network module; the size of the obtained real-time ephemeris information is about 6.3KB, which includes the GPS module and BD ephemeris data, and the base station gateway communicates with the A-GNSS server every 1-2 hours AGPS server to interact.

[0036] S3: The wireless communication module of the base station gateway adopts the FSK modulation method to broadcast in real time the real-time ephemeris, local location information and local time information obtained by coverage; due to the large amount of transmitted data, the FSK modulation method is adopted, and the rate can reach 300Kbit ; It is sent ...

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Abstract

The invention relates to a navigation positioning technology, and discloses a low-power consumption GPS positioning method, which comprises the following steps that a base station gateway acquires a real-time ephemeris and broadcasts the ephemeris; the positioning device receives the real-time ephemeris after being awakened, enters a hot start mode to obtain specific position information, uploads the specific position information to the base station gateway, and then enters a sleep mode; the base station gateway receives the specific position information and further performs back-end processing; The present invention further comprises the low-power-consumption GPS positioning system comprises a positioning device, a base station gateway and an A-GNSS server, and the base station gateway is in network interaction with the A-GNSS server. The positioning device and the base station gateway transmit and receive information through the wireless communication module. Compared with a GPS hot start mode, only a part for receiving data is added, and data request transmitting, network interaction time and corresponding power consumption are removed, so that the positioning device is always in an ultra-low power consumption state, the service cycle of a battery is greatly prolonged, and the service life of the battery is greatly prolonged.

Description

technical field [0001] The invention relates to navigation and positioning technology, in particular to a low power consumption GPS positioning method and system. Background technique [0002] The current cold start method of the GPS module of the positioning device is to start forcibly through hardware. At this time, the GPS module clears all historical information, and the GPS receiver loses the satellite parameters, or the existing parameters are too different from the actual received satellite parameters. , causing the positioning device to fail to work, and the coordinate data provided by the satellite must be reacquired, but because there is no previous information, this will take a long time, at least 30 seconds to 3 minutes or even longer, resulting in power consumption of the positioning device high. [0003] The warm start mode refers to the start when the GPS module is more than 2 hours away from the last positioning time or the Beidou satellite navigation is mor...

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Application Information

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IPC IPC(8): G01S19/03G01S19/34
CPCG01S19/03G01S19/34
Inventor 吴凡忠叶晨
Owner 杭州飞舸科技有限公司
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