WO2011069400A1 - Procédé de réalisation d'un système de positionnement global assisté (gps-a) au moyen d'un ordinateur personnel (pc) - Google Patents

Procédé de réalisation d'un système de positionnement global assisté (gps-a) au moyen d'un ordinateur personnel (pc) Download PDF

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Publication number
WO2011069400A1
WO2011069400A1 PCT/CN2010/078615 CN2010078615W WO2011069400A1 WO 2011069400 A1 WO2011069400 A1 WO 2011069400A1 CN 2010078615 W CN2010078615 W CN 2010078615W WO 2011069400 A1 WO2011069400 A1 WO 2011069400A1
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WO
WIPO (PCT)
Prior art keywords
location
gps
information
pseudorange
current satellite
Prior art date
Application number
PCT/CN2010/078615
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English (en)
Chinese (zh)
Inventor
犹梦哲
周敬高
黎聪
Original Assignee
惠州Tcl移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州Tcl移动通信有限公司 filed Critical 惠州Tcl移动通信有限公司
Priority to EP10835435.8A priority Critical patent/EP2511732B1/fr
Priority to US13/379,288 priority patent/US8626199B2/en
Publication of WO2011069400A1 publication Critical patent/WO2011069400A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS

Definitions

  • the invention belongs to the field of PC technology, and in particular relates to a method for implementing A-GPS (Auxiliary Satellite Positioning) by a PC.
  • A-GPS Advanced Satellite Positioning
  • A-GPS Assisted-GPS (Auxiliary Satellite Positioning) refers to the location server receiving and demodulating GPS satellite signals, and then calculating the corresponding GPS auxiliary parameters according to the approximate location of the terminal. These GPS auxiliary parameters are transmitted through the mobile communication network.
  • the terminal can accelerate the acquisition of GPS satellite signals by using GPS-assisted parameters and reduce the requirement of GPS satellite signal strength. Then the terminal uses GPS-assisted parameters to complete the pseudo-range measurement of GPS satellite signals. According to the pseudo-range measurement results, The terminal or network server calculates the final location information.
  • A-GPS The application of A-GPS is divided into two modes: one is the SI mode, which refers to the mode in which the terminal initiates positioning; the other is NI mode refers to the mode initiated by the network server.
  • the advantage of the AGPS solution is mainly in its positioning accuracy. In outdoor and other open areas, the accuracy can reach 10 meters in the normal GPS working environment, which is called the positioning technology with the highest positioning accuracy.
  • Another advantage of the AGPS solution is that the time to first capture the GPS signal is generally only a few seconds, unlike the first capture time of the GPS may take 2 to 3 minutes.
  • the present invention is implemented in such a manner that a PC implements an A-GPS method, and the method includes:
  • the PC controls its wireless network module to connect to the network, initiates a GPS positioning session
  • the location server transmits GPS auxiliary information to the PC;
  • the PC acquires current satellite information according to the GPS auxiliary information.
  • the method further includes:
  • the PC receives a location request sent by a location request server.
  • the positioning request uses a Wap Push message.
  • step b specifically includes:
  • the PC transmits its own base station address to the location server through the network;
  • the location server transmits GPS assistance information related to the base station address to the PC.
  • step c specifically includes:
  • the PC searches for the current satellite according to the GPS auxiliary information, and acquires the current satellite information through its GPS module.
  • step c the method further includes:
  • the PC calculates a pseudorange to the current satellite according to the current satellite information.
  • the PC calculates location information according to the pseudorange, and displays the location information by using a UI.
  • step c the method further includes:
  • the PC calculates a pseudorange to the current satellite according to the current satellite information.
  • the PC transmits the pseudorange to the location server
  • the location server calculates location information according to the pseudorange
  • the PC displays the UI through the UI. location information.
  • step c the method further includes:
  • the PC calculates a pseudorange to the current satellite according to the current satellite information.
  • the PC calculates location information according to the pseudorange, and transmits the location information to the location request server.
  • step c the method further includes:
  • the PC calculates a pseudorange to the current satellite according to the current satellite information.
  • the PC transmits the pseudorange to the location server
  • the location server calculates location information according to the pseudorange, transmits the location information to the PC, and transmits the location information to the location The location request server.
  • the PC controls the AT network command when its wireless network module is connected to the network.
  • the PC uses its wireless network module to connect to the network, obtains GPS auxiliary information from the location server through the network, and then the GPS module of the PC uses the GPS auxiliary information to find the current satellite, receives the current satellite information, and then according to the current satellite. Information is targeted.
  • the technical solution provided by the invention applies the A-GPS function on the PC to provide positioning and navigation services for the PC, and the key is to apply the network function provided by the wireless network module of the PC to connect the corresponding A-GPS server to obtain the GPS auxiliary information of the current satellite.
  • the PC speeds up the acquisition of the current satellite data, and then accurately calculates the current location information of the PC.
  • the solution provided by the present invention can also implement the NI mode positioning function of the PC, which can implement the service of querying the location of others.
  • Embodiment 1 is a flow chart of Embodiment 1 of the present invention.
  • Embodiment 2 is a flow chart of Embodiment 2 of the present invention.
  • Embodiment 1 A PC with Internet access realizes A-GPS through SI mode
  • the process of implementing the A-GPS through the SI mode by the PC with the Internet access function is as shown in FIG. 1 , and specifically includes the following steps:
  • the PC controls the dial-up network of its wireless network module to initiate a GPS positioning session
  • the PC transmits its own base station address to the location server through the network;
  • the location server feeds back the GPS auxiliary information related to the location to the PC according to the approximate location of the PC (base station address);
  • the PC starts its A-GPS receiving module and receives the current satellite information according to the GPS auxiliary information transmitted by the location server;
  • the PC calculates its pseudorange to the satellite based on the current satellite information
  • the PC calculates the location information according to the calculated pseudorange, and displays the satellite information and the location information through the UI (user interface).
  • the PC may calculate the location information according to the pseudorange, or transmit the pseudorange through the network to the location server, and the location server calculates the location according to the pseudorange. Information and transfer the calculated location information to the PC.
  • Embodiment 2 A PC with Internet access realizes A-GPS through NI mode
  • the location request server of the network sends a Wap Push message requesting location to the PC;
  • the PC controls the dial-up connection of the wireless network module according to the analysis of the Wap Push message
  • the PC transmits its own base station address to the location server through the network;
  • the location server feeds back the GPS auxiliary information related to the location to the PC according to the approximate location of the PC;
  • the PC starts its A-GPS receiving module and receives the current satellite information according to the GPS auxiliary information transmitted by the location server;
  • the PC calculates its pseudorange to the satellite based on the current satellite information
  • the PC calculates the location information according to the calculated pseudorange, and transmits the satellite information and the location information to the location request server through the network.
  • the PC may calculate the location information according to the pseudorange, or transmit the pseudorange through the network to the location server, and the location server calculates the location according to the pseudorange.
  • Information, and the calculated location information is transmitted to the PC, and then the satellite information and location information are transmitted by the PC to the location request server via the network.
  • the Wap Push message sent by the location request server is a Push message containing a specific identifier, which can be separated from the MMS and other types of Push messages.
  • the Content Type and Application are included in the Wap Push message for the location request.
  • the ID (Application Identification Number) fields are as follows in the following table:
  • the PC can separate the Wap Push message of the location request through the above field, and then according to Wap The Push message initiates the positioning session process.
  • the PC implements A-GPS through the NI mode, which enables services to query the location of others.
  • the PC can control the dial-up Internet access of the wireless network module by using the corresponding dialing AT command (AT).
  • AT AT command
  • Commands such as:
  • IMSI International Mobile Subscriber Identity (International Mobile User Identity).
  • AT+CIMI ⁇ CR> can get IMSI parameter information.
  • NMEA National Marine
  • Electronics Association International Shipping Electronics Association
  • NMEA National Marine
  • the underlying driver of the PC converts the acquired current satellite information and location information into NMEA format data, and then sends it to the upper layer application for parsing.
  • NEMA data through The data in the $GPGGA segment indicates the GPS positioning data, including time, location, and data associated with the GPS receiver; the $GPGSA segment indicates the currently active satellite; the $GPGSV segment indicates the currently visible satellite information, and so on. For details, please refer to the NEMA related agreement materials.
  • the technical solution provided by the present invention applies the A-GPS function on a PC to provide positioning and navigation services for the PC.
  • the key is to apply the network function provided by the wireless network module of the PC to connect the corresponding A-GPS server to obtain the current satellite.
  • the GPS-assisted information speeds up the PC's acquisition of current satellite data and then accurately calculates the current location information of the PC.
  • the solution provided by the embodiment of the present invention can also implement the NI mode location function of the PC, which can implement the service of querying the location of another person.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé de réalisation d'un système de positionnement global assisté (GPS-A) au moyen d'un ordinateur personnel (PC) dans le domaine technique des ordinateurs personnels (PC). Le procédé comprend : a) la commande d'une connexion du module de réseau sans fil de l'ordinateur personnel (PC) avec un réseau au moyen de l'ordinateur personnel (PC) afin d'initialiser une session de positionnement GPS, b) la transmission d'informations auxiliaires GPS à l'ordinateur personnel (PC) au moyen d'un serveur de position, c) l'obtention des informations du présent satellite selon les informations auxiliaires GPS au moyen de l'ordinateur personnel (PC). Le procédé permet d'appliquer la fonction de système de positionnement global assisté (GPS-A) à l'ordinateur personnel (PC) de façon à fournir les services de positionnement et de navigation à l'ordinateur personnel (PC). On peut connecter un serveur de système de positionnement global assisté (GPS-A) correspondant pour obtenir les informations auxiliaires GPS du présent satellite au moyen de la fonction de réseau fournie par le module de réseau sans fil de l'ordinateur personnel (PC), de manière à accélérer la vitesse d'obtention des données de satellite réel, et de déterminer ensuite avec précision les informations de position réelle de l'ordinateur personnel PC.
PCT/CN2010/078615 2009-12-11 2010-11-10 Procédé de réalisation d'un système de positionnement global assisté (gps-a) au moyen d'un ordinateur personnel (pc) WO2011069400A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10835435.8A EP2511732B1 (fr) 2009-12-11 2010-11-10 Procédé de réalisation d'un système de positionnement global assisté (gps-a) au moyen d'un ordinateur personnel (pc)
US13/379,288 US8626199B2 (en) 2009-12-11 2010-11-10 Method for PC to realize A-GPS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009101887844A CN101718872B (zh) 2009-12-11 2009-12-11 一种pc实现a-gps的方法
CN200910188784.4 2009-12-11

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WO2011069400A1 true WO2011069400A1 (fr) 2011-06-16

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US (1) US8626199B2 (fr)
EP (1) EP2511732B1 (fr)
CN (1) CN101718872B (fr)
WO (1) WO2011069400A1 (fr)

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Also Published As

Publication number Publication date
EP2511732B1 (fr) 2020-01-08
CN101718872B (zh) 2012-11-28
CN101718872A (zh) 2010-06-02
EP2511732A1 (fr) 2012-10-17
US8626199B2 (en) 2014-01-07
EP2511732A4 (fr) 2015-12-09
US20120100874A1 (en) 2012-04-26

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