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Method and system for hybrid positioning on basis of multi-mode signals

A hybrid positioning system and signal technology, applied in the field of positioning systems, can solve the problems of not being able to use WIFI positioning, not being able to provide a WIFI positioning database, and WIFI access points have not yet been entered.

Inactive Publication Date: 2013-07-17
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This positioning method also has some disadvantages, such as the location where there is no WIFI access point, or the location of the WIFI positioning database cannot be provided, and the local WIFI access point has not been entered into the positioning database, etc., cannot use WIFI positioning way to locate

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  • Method and system for hybrid positioning on basis of multi-mode signals
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  • Method and system for hybrid positioning on basis of multi-mode signals

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing.

[0041] refer to figure 1 , the hybrid positioning system described in this embodiment actually includes a host and two servers. The host consists of MCU 1-5 (microprocessing chip), positioning communication module (including GPS positioning communication module 1-4, WIFI positioning communication module 1-7, GSM positioning communication module 1-8, communication module antenna system), GSM / GPRS Module 1-2 (including SIM card interface for inserting SIM card 1-3), human-computer interaction interface 1-6 and power management module 1-9. The two servers are respectively a positioning information processing server 3-1 and a geographic information processing server 3-2.

[0042] UART protocol is used for communication between MCU and GPS positioning communication module. The GPS positioning communication module used by the host uses a chipset based on SIRF, and uses GPS sta...

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Abstract

The invention relates to a method and system for hybrid positioning on the basis of multi-mode signals. The system comprises a host machine and two servers. The host machine is composed of a micro-programmed control unit (MCU), positioning communication modules (comprise global positioning system (GPS) positioning communication modules, wireless fidelity (WIFI) positioning communication modules, global system for mobile communication (GSM) positioning communication modules and communication module antenna systems), a GSM / GPRS module, a human-computer interaction interface and a power supply management module. The two servers are a positioning information processing server and a geographic information processing server respectively. When the positioning system is operated, positioning signal data acquired by the positioning communication modules are sent to the two servers to be analyzed, and positioning data are corrected by adopting a weight calculation algorithm. Positioning time for the first time after cold starting of the positioning system can be shortened to within 15 seconds, indoor or outdoor positioning position is accurate to within 10 meters, simultaneously operation environment of a general positioning system is expanded, and indoor and outdoor all-region coverage is achieved.

Description

Technical field [0001] The invention involves a geographical position positioning method and positioning system that uses multiple positioning signals. Background technique [0002] Most of the current navigation terminal adopts satellite positioning system (SPS), and GPS (Global Positioning System) is used as a SPS positioning system.High -precision; fast, time -saving, high efficiency; wide application, multi -functional; moving positioning and other characteristics. [0003] However, in the urban environment, due to the relatively dense buildings, the satellite signals will be shielded, reflected, attenuation, and diffraction, which will seriously interfere with satellite signal transmission, thereby greatly reducing the accuracy and positioning speed of satellite positioning.Especially in buildings with reinforced concrete structures, systems that use SPS positioning are basically unable to work.The positioning performance of SPS has been damaged in terms of effectiveness and...

Claims

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Application Information

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IPC IPC(8): H04W4/02G01S19/01H04L29/06
Inventor 黄琦潘策荣杜锐周洪杰
Owner ZHEJIANG UNIV