WO2022144005A1 - 定位方法及系统、通信终端和计算机可读存储介质 - Google Patents

定位方法及系统、通信终端和计算机可读存储介质 Download PDF

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WO2022144005A1
WO2022144005A1 PCT/CN2021/143951 CN2021143951W WO2022144005A1 WO 2022144005 A1 WO2022144005 A1 WO 2022144005A1 CN 2021143951 W CN2021143951 W CN 2021143951W WO 2022144005 A1 WO2022144005 A1 WO 2022144005A1
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network
communication terminal
positioning
information
network information
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PCT/CN2021/143951
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English (en)
French (fr)
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潘宏得
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上海杉诺信息技术有限公司
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Publication of WO2022144005A1 publication Critical patent/WO2022144005A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

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  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a positioning method and system, a communication terminal, and a computer-readable storage medium.
  • the current positioning technology can only perform well in one of the aspects. If you want to improve the positioning speed, you must sacrifice a certain positioning accuracy performance. If you want to ensure the positioning accuracy, you must sacrifice a certain positioning speed performance. Excellent performance on both fronts.
  • An embodiment of the present application provides a positioning method, the method includes: an initial positioning step, in which a communication terminal obtains network information of a network where the communication terminal is located by using a wireless communication method, and determines initial position information according to the network information; In the positioning step, the communication terminal is re-positioned on the basis of the initial position information by using the built-in chip of the communication terminal.
  • the initial positioning step specifically includes: the communication terminal obtains the network information from the network after completing the network registration; judging whether the obtained network information is the same as the network information obtained when registering the network last time There is a difference; if there is no difference, the initial position information of the current communication terminal is obtained by querying the comparison table stored in the communication terminal in advance, wherein the comparison table includes the correspondence between the position information and the network information .
  • the initial positioning step specifically further includes: if the acquired network information is different from the network information acquired when registering the network last time, the communication terminal uploads the acquired network information to the server ; the server obtains the reference position information by querying the database, and returns the reference position information to the communication terminal as the current initial position information of the communication terminal.
  • the comparison table is also stored in the server of the local network, and the initial positioning step specifically further includes: if the obtained network information is different from the network information obtained when registering the network last time, the communication
  • the terminal obtains the comparison table from the server by querying the server of the local network; the position information obtained from the comparison table is used as the current initial position information of the communication terminal.
  • An embodiment of the present application further provides a positioning system, the system includes an initial positioning module and an accelerated positioning module, wherein the initial positioning module is used to obtain network information of the network where the system is located by using wireless communication, and according to The network information determines initial position information; the accelerated positioning module is configured to use the built-in chip of the communication terminal to reposition the system on the basis of the initial position information.
  • the initial positioning module is specifically used for: acquiring the network information from the network after completing the network registration; judging whether the acquired network information is different from the network information acquired when the network was registered last time; If there is no difference, the current initial location information is obtained by querying a comparison table pre-stored in the system, wherein the comparison table includes the correspondence between the location information and the network information.
  • the initial positioning module is also specifically configured to: if the obtained network information is different from the network information obtained when registering the network last time, upload the obtained network information to the server; use the query
  • the current initial location information is obtained from the server by means of a database.
  • the comparison table is also stored in the server of the local network
  • the initial positioning module is specifically further configured to: if the obtained network information is different from the network information obtained when registering the network last time, query the The server of the local network, and obtain the comparison table from the server; the position information obtained from the comparison table is used as the current initial position information.
  • An embodiment of the present application further provides a communication terminal, wherein the communication terminal includes a memory and a processor, the memory stores a computer processing instruction, and the processor executes the foregoing positioning method by invoking the computer processing instruction .
  • Embodiments of the present application further provide a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the foregoing positioning method are implemented.
  • FIG. 1 is a schematic flowchart of a positioning method in an embodiment of the present application.
  • FIG. 2 is a detailed schematic flowchart of an accelerated positioning step in an embodiment of the present application
  • FIG. 3 is another detailed schematic flowchart of the acceleration positioning step in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a positioning system according to an embodiment of the present application.
  • the purpose of the embodiments of the present application is to provide a positioning method and system, a communication terminal and a computer-readable storage medium, which can improve both the positioning speed and the positioning accuracy.
  • FIG. 1 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • step S1 in the initial positioning step, the communication terminal obtains network information of the network where the communication terminal is located by using a wireless communication method, and determines initial position information according to the network information.
  • the network information refers to using 2G, 3G, 4G, 5G, Sigfox, LoRaWAN, BlueTooth, Wifi and other wireless communication methods to obtain network information of the network where the communication terminal is located
  • the communication terminal may be of various types Communication terminal equipment, such as mobile phones, tablet computers, personal digital assistants and other communication terminals.
  • the communication terminal uses wireless communication methods including but not limited to 2G, 3G, 4G, 5G, BlueTooth, Wifi, etc. to obtain the network of the network where the communication terminal is located.
  • the network information includes but is not limited to the mobile device country code (Mobile Country Code, MCC), the fixed installation of the Bluetooth beacon identifier (BlueTooth Beacon ID), the fixed installation of the WiFi hotspot (Hotpot) MAC address, etc., These network information all correspond to specific latitude and longitude location information.
  • the initial positioning step specifically includes: acquiring network information from the network after the communication terminal completes network registration; judging whether the acquired network information is different from the network information acquired when registering the network last time; if If there is no difference, the initial position information of the current communication terminal is obtained by querying a comparison table pre-stored in the communication terminal, wherein the comparison table includes the correspondence between the position information and the network information.
  • the communication terminal must register with the network.
  • the registration step can be skipped for positioning; of course, there are also communication terminals configured to report positioning packets once a day.
  • the communication terminal must first register with the network; for BlueTooth and Wifi, as long as the communication terminal It is enough to scan the surrounding Beacons and WiFi hotspots. At this time, network registration is not necessary.
  • the communication terminal obtains relevant network information after registering to a wireless network including but not limited to 2G, 3G, 4G, 5G, BlueTooth, Wifi, etc., and the communication terminal saves the obtained information every time after completing the registration Then, compare the currently acquired network information with the network information saved when the network was registered last time, and compare whether the two have changed and whether there is a difference.
  • the communication terminal usually saves a comparison table in advance, the comparison table includes the correspondence between the location information and the network information, and the current communication terminal is obtained by querying the comparison table stored in the communication terminal in advance. initial location information. In this embodiment, obtaining the location information by saving the comparison table at the local end can greatly improve the positioning speed and realize fast positioning.
  • the comparison table can also be stored in the server of the local network.
  • the comparison table is obtained from the network where it is located, and the comparison table is obtained by querying the server of the local network and obtained from the server.
  • the comparison table therefore, the initial positioning step in this application specifically further includes: if the obtained network information is different from the network information obtained when registering the network last time, the communication terminal queries the server of the local network, and from the A comparison table is obtained from the server; the position information obtained from the comparison table is used as the initial position information of the current communication terminal.
  • the comparison table can be stored in the communication terminal or in the background server of the local network. If it is stored in the communication terminal, the location information can be directly retrieved after obtaining the network information; If the backend server is used, the communication terminal needs to report the network information to the backend server of the local network, and after the backend server looks up the table, the corresponding location information is sent back to the communication terminal.
  • the present application also provides a third method for obtaining the initial position information of the current communication terminal, that is, the initial positioning step specifically further includes: if the obtained network information is the same as the network information obtained when the network was registered last time If the information is different, the communication terminal uploads the acquired network information to the server; the server obtains the reference position information by querying the database, and returns the reference position information to the communication terminal as the initial position information of the current communication terminal.
  • the communication terminal after the communication terminal registers with the wireless network (including but not limited to Sigfox, LoRaWAN, etc.), it reports a message containing network information to the wireless network server (for example, Sigfox server, LoRaWAN server, etc.), and the server obtains the After receiving the Sigfox base station ID or LoRaWAN base station ID of the message, query the special database to obtain the reference position information and send the obtained reference position information to the communication terminal through wireless communication, and the communication terminal regards the obtained reference position information as the current reference position information. Initial location information.
  • the wireless network server for example, Sigfox server, LoRaWAN server, etc.
  • the performance of the equipment is changing with each passing day, which is not only reflected in the calculation speed, which will become faster and faster, but also in the storage capacity, which will become larger and larger.
  • the comprehensive performance of the device as a communication terminal will only increase, and the database that originally needs to be stored on the backend server can be stored on the local device, that is, it can be stored in the internal file system of the local device that originally needed to be stored on the backend server.
  • the present application also provides a fourth method for obtaining the initial position information of the current communication terminal, that is, the initial positioning step specifically further includes: if the obtained network information is the same as the network information obtained when the network was registered last time If the information is different, the communication terminal obtains a comparison table from the database stored in the device by querying the database stored in the device; the position information obtained from the comparison table is used as the initial position information of the current communication terminal.
  • step S2 the positioning step is accelerated, and the communication terminal is repositioned on the basis of the initial position information by using the built-in chip of the communication terminal.
  • the built-in chip is a GNSS chip
  • the communication terminal is a communication terminal with a GNSS positioning function
  • the communication terminal and the GNSS chip are connected through UART
  • the communication terminal will transmit the initial positioning information to the GNSS chip through the bus.
  • the communication terminal After the communication terminal obtains the initial position information, it will be used as the reference position information, according to the auxiliary global satellite positioning system provided by each GNSS chip.
  • the protocol format corresponding to the Assisted Global Positioning System (AGPS) solution is sent to the GNSS chip, thereby accelerating the positioning of the GNSS chip and improving the positioning accuracy.
  • AGPS Assisted Global Positioning System
  • the accelerated positioning step will be described in detail below through two embodiments.
  • FIG. 2 is a schematic schematic diagram of a detailed flow of an accelerated positioning step in an embodiment of the present application.
  • Fig. 2 applies the accelerated positioning step of the present application to the GNSS EPO (Extended Prediction Orbit) Service solution of Airoha Technology Corp., wherein EPO is an offline GPS-assisted positioning technology, and the equipment in Fig. 2 refers to
  • the Network EPO Server in Figure 2 refers to the Network EPO server, wherein the communication terminal (ie the device in Figure 2) downloads EPO from the Network EPO server every three days or every six hours, Then, the communication terminal and the Airda GNSS chip exchange information to achieve accelerated positioning.
  • the communication terminal powers up the Airoda GNSS chip, and sends the reference UTC (Coordinated Universal Time) to the Airoda GNSS chip after the power-on is successful. ) time, and after sending the reference UTC time successfully, send EPO assistance data to the GNSS chip, and after successfully sending the EPO assistance data, send the reference position information to the GNSS chip (that is, the initial position information in step S1), confirm Sending reference location information to Airda GNSS chip is successful.
  • the reference UTC Coordinatd Universal Time
  • the TTFF Time to First Fix
  • the TTFF is shortened from an average time of more than 30 seconds to the fastest 3 seconds, and in the same weak GNSS satellite signal Under the condition of coverage, TTFF and positioning accuracy are also greatly improved.
  • FIG. 3 is another detailed schematic flowchart of the acceleration positioning step in an embodiment of the present application.
  • Fig. 3 is the application of the accelerated positioning step of the present application to the GNSS AssitNow scheme of U-Blox Company, wherein the equipment in Fig. 3 refers to the communication terminal of the present application, and the Ublox GNSS in Fig.
  • Ublox Multiple GNSS Assistance Server in Figure 3 refers to a variety of GNSS assistance servers of U-Blox Company, wherein the communication terminal (ie the device in Figure 3) sets appropriate data updates according to the selected assisted positioning mode interval, and then the communication terminal establishes an HTTP (Hyper Text Transfer Protocol) connection with the server according to the set interval, and after the HTTP connection is successfully established, it forms an HTTP Get data request packet and sends the data request packet to the server, wherein the data request packet There is reference position information in it. After the data request packet is successfully sent, the data to be downloaded is received from the server. Finally, the communication terminal and the GNSS chip of U-Blox company exchange information to achieve accelerated positioning.
  • HTTP Hyper Text Transfer Protocol
  • the GNSS chip of U-Blox company is powered on, and after the power-on is successful, the reference UTC time is sent to the GNSS chip of U-Blox company, and the auxiliary positioning data is sent to the GNSS chip of U-Blox company after the reference UTC time is sent successfully. , and receive a message that the assisted positioning data is successfully sent.
  • the TTFF is shortened from an average time of more than 30 seconds to the fastest 1 second. Under the same weak signal coverage of GNSS satellites, the TTFF And the positioning accuracy is also greatly improved.
  • FIG. 4 is a schematic structural diagram of a positioning system 1 according to an embodiment of the present application.
  • the positioning system 1 includes an initial positioning module 2 and an accelerated positioning module 3 .
  • the initial positioning module 2 is configured to obtain network information of the network where the system is located by using wireless communication, and determine initial position information according to the network information.
  • the initial positioning module 2 is specifically configured to: acquire the network information from the network after completing the network registration; determine whether the acquired network information is the same as the network information acquired when the network was registered last time If there is a difference; if there is no difference, the current initial location information is obtained by querying from the comparison table pre-stored in the system, wherein the comparison table includes the correspondence between the location information and the network information.
  • the initial positioning module 2 is further configured to: if the acquired network information is different from the network information acquired when registering the network last time, upload the acquired network information to the server ; Obtain the current initial position information from the server by querying the database.
  • the comparison table is also stored in the server of the local network, and the initial positioning module 2 is specifically also used for: if the acquired network information is different from the network information acquired when registering the network last time, Then, by querying the server of the local network, and obtaining the comparison table from the server; the position information obtained from the comparison table is used as the current initial position information.
  • the acceleration positioning module 3 is used for re-positioning the system on the basis of the initial position information by using the built-in chip of the communication terminal.
  • the present application also provides a communication terminal, wherein the communication terminal includes a memory and a processor, the memory stores computer processing instructions, and the processor executes the foregoing positioning method by invoking the computer processing instructions.
  • the present application also provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the foregoing positioning method are implemented.
  • the technical solution provided by the present application has the following advantages: the initial position information is determined through network information, and then the built-in chip is used to re-position the communication terminal on the basis of the initial position information, and the combination of two positioning methods can improve the positioning. speed and improve positioning accuracy.
  • the units included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of the functional units are also It is only for the convenience of distinguishing from each other, and is not intended to limit the protection scope of the present application.

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  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

本申请提供了一种定位方法及系统、通信终端和计算机可读存储介质，该方法包括：初始定位步骤，通信终端利用无线通信方式获取所述通信终端所在网络的网络信息，并根据网络信息确定初始位置信息；加速定位步骤，利用所述通信终端的内置芯片，在初始位置信息的基础上对通信终端进行再次定位。

Description

定位方法及系统、通信终端和计算机可读存储介质
相关申请的交叉引用
本申请基于申请号为“202011626336.0”、申请日为2020年12月31日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种定位方法及系统、通信终端和计算机可读存储介质。
背景技术
随着卫星导航(例如GPS、Glonass、Galileo、BeiDou、QZSS等导航系统)技术的不断发展和完善，人们对于带有定位功能的设备定位性能要求越来越高。一方面要求定位速度要快，首次定位时间(Time to First Fix，TTFF)越短越好；另一方面又要求定位精度要准，即设备获取的经纬度与设备实际所处的经纬度偏差越小越好。
但是，目前的定位技术中通常只能在其中某一个方面表现出色，如果要提高定位速度就势必要牺牲一定的定位精度性能，如果要确保定位精度就势必要牺牲一定的定位速度性能，很难在这两方面都表现出色。
发明内容
本申请的实施例提供了一种定位方法，所述方法包括：初始定位步骤，通信终端利用无线通信方式获取所述通信终端所在网络的网络信息，并根据所述网络信息确定初始位置信息；加速定位步骤，利用所述通信终端的内置芯片，在所述初始位置信息的基础上对所述通信终端进行再次定位。
另外，所述初始定位步骤具体包括：所述通信终端在完成网络注册后从所述网络中获取所述网络信息；判断所获取到的所述网络信息是否与上次注册网络时获取的网络信息有差异；如果没有差异，则从预先保存在所述通信终端中的对照表中查询得到当前所述通信终端的初始位置信息，其中，所述对照表包括位置信息与网络信息之间的对应关系。
另外，所述初始定位步骤具体还包括：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则所述通信终端将所获取到的所述网络信息上传至服务器；所述服务器通过查询数据库获取参考位置信息，并将所述参考位置信息返回至所述通信终端，以作为当前所述通信终端的初始位置信息。
另外，所述对照表还存储在本地网络的服务器中，所述初始定位步骤具体还包括：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则所述通信终端通过查询本地网络的服务器，并从所述服务器中获取所述对照表；将从所述对照表中获取到的位置信息作为当前所述通信终端的初始位置信息。
本申请的实施例还提供一种定位系统，所述系统包括初始定位模块和加速定位模块，其中，所述初始定位模块，用于利用无线通信方式获取所述系统所在网络的网络信息，并根据所述网络信息确定初始位置信息；所述加速定位模块，用于利用所述通信终端的内置芯片， 在所述初始位置信息的基础上对所述系统进行再次定位。
另外，所述初始定位模块具体用于：在完成网络注册后从所述网络中获取所述网络信息；判断所获取到的所述网络信息是否与上次注册网络时获取的网络信息有差异；如果没有差异，则从预先保存在所述系统中的对照表中查询得到当前的初始位置信息，其中，所述对照表包括位置信息与网络信息之间的对应关系。
另外，所述初始定位模块具体还用于：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则将所获取到的所述网络信息上传至服务器；利用查询数据库的方式从所述服务器获取当前的初始位置信息。
另外，所述对照表还存储在本地网络的服务器中，所述初始定位模块具体还用于：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则通过查询本地网络的服务器，并从所述服务器中获取所述对照表；将从所述对照表中获取到的位置信息作为当前的初始位置信息。
本申请的实施例还提供了一种通信终端，其中，所述通信终端包括存储器和处理器，所述存储器存储计算机处理指令，所述处理器通过调用所述计算机处理指令来执行前述的定位方法。
本申请的实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现前述的定位方法的步骤。
附图说明
图1为本申请一实施例中定位方法的流程示意图；
图2为本申请一实施例中加速定位步骤中的详细流程示意图；
图3为本申请一实施例中加速定位步骤中的另一种详细流程示意图；
图4为本申请一实施例中定位系统的结构示意图。
具体实施方式
本申请实施例的目的在于提供一种定位方法及系统、通信终端和计算机可读存储介质，既能提高定位速度又能提高定位精度。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
以下将对本申请所提供的一种定位方法及其系统进行详细说明。
请参阅图1，为本申请一实施例中定位方法的流程示意图。
在步骤S1中，初始定位步骤，通信终端利用无线通信方式获取通信终端所在网络的网络信息，并根据所述网络信息确定初始位置信息。
在本实施例中，网络信息是指利用2G、3G、4G、5G、Sigfox、LoRaWAN、BlueTooth、Wifi等等无线通信方式来获取该通信终端所在网络的网络信息，通信终端可以是各种类型的通信终端设备，例如手机、平板电脑、个人数码助理等等通信终端，通信终端利用包括但不限于2G、3G、4G、5G、BlueTooth、Wifi等等无线通信方式来获取该通信终端所在网络的网络信息，其中，该网络信息包括但不限于移动设备国家代码(Mobile Country Code，MCC)、固定安装的蓝牙信标标识符(BlueTooth Beacon ID)、固定安装的WiFi热点(Hotpot)MAC 地址等等，这些网络信息都对应了特定的经纬度位置信息。
在本实施例中，所述初始定位步骤具体包括：通信终端在完成网络注册后从网络中获取网络信息；判断所获取到的网络信息是否与上次注册网络时获取的网络信息有差异；如果没有差异，则从预先保存在通信终端中的对照表中查询得到当前通信终端的初始位置信息，其中，对照表包括位置信息与网络信息之间的对应关系。
在本实施例中，对于2G、3G、4G、5G、Sigfox、LoRaWAN通信制式来说，通信终端必须注册网络，正常情况下，通信终端在网络注册后，会维持在网状态，此后通信终端的定位就可以跳过注册步骤了；当然也有通信终端配置为一天起来上报一次定位报文的，在这种情况下，通信终端肯定是要先注册网络的；对于BlueTooth、Wifi来说，只要通信终端能扫描到周边的Beacon和WiFi热点就可以了，这时网络注册不是必须的。
在本实施例中，通信终端在注册到包括但不限于2G、3G、4G、5G、BlueTooth、Wifi等无线网络后，获取到相关网络信息，通信终端每次在完成注册之后都会保存其所获取到的网络信息，然后将当前所获取的网络信息与上次注册网络时保存的网络信息进行比较，比较二者是否发生改变，是否存在差异。在本实施例中，通信终端通常会预先保存一份对照表，这份对照表包括位置信息与网络信息之间的对应关系，通过从预先保存在通信终端中的对照表中查询得到当前通信终端的初始位置信息。在本实施例中，通过这种在本地端保存对照表的方式来获取位置信息可以极大的提高定位速度，实现快速定位。
另外，如果通信终端没有预先保存一份对照表，对照表还可以存储在本地网络的服务器中，这时就从所在网络中获取对照表，通过查询本地网络的服务器，并从所述服务器中获取所述对照表，因此，本申请中的初始定位步骤具体还包括：如果所获取到的网络信息与上次注册网络时获取的网络信息有差异，则通信终端通过查询本地网络的服务器，并从所述服务器中获取对照表；将从对照表中获取到的位置信息作为当前通信终端的初始位置信息。
在本实施例中，这个对照表可以存储在通信终端，也可以存储在本地网络的后台服务器，如果是存储在通信终端的话，则拿到网络信息之后就可以直接检索位置信息；如果是存储在后台服务器的话，则通信终端需要把网络信息上报本地网络的后台服务器，由后台服务器查表后，将对应的位置信发回通信终端。
在本实施例中，本申请还提供第三种获取当前通信终端的初始位置信息的方法，即所述初始定位步骤具体还包括：如果所获取到的网络信息与上次注册网络时获取的网络信息有差异，则通信终端将所获取到的网络信息上传至服务器；服务器通过查询数据库获取参考位置信息，并将参考位置信息返回至通信终端，以作为当前通信终端的初始位置信息。
在本实施例中，通信终端在注册到无线网络(包括但不限于Sigfox、LoRaWAN等)后，上报包含有网络信息的报文给无线网络服务器(例如Sigfox服务器、LoRaWAN服务器等)，服务器获取到接收报文的Sigfox基站ID或者LoRaWAN基站ID后，查询专门的数据库，得到参考位置信息并将获取的参考位置信息通过无线通信方式下发给通信终端，通信终端将获取的参考位置信息作为当前的初始位置信息。
在本实施例中，由于通信终端的快速发展，设备性能日新月异，不仅体现在计算速度上，计算的速度会越来越快，而且还体现在存储容量上，存储容量会越来越大，因此作为通信终端的设备的综合性能只会越来越大，进而可以将原来需要在后台服务器存储的数据库放在本地设备上存储，即可以在本地设备的内部文件系统中存储原来需要在后台服务器存储的数据 库，鉴于此，本申请还提供第四种获取当前通信终端的初始位置信息的方法，即所述初始定位步骤具体还包括：如果所获取到的网络信息与上次注册网络时获取的网络信息有差异，则通信终端通过查询设备内部存储的数据库，并从所述设备内部存储的数据库中获取对照表；将从对照表中获取到的位置信息作为当前通信终端的初始位置信息。
在步骤S2中，加速定位步骤，利用所述通信终端的内置芯片，在所述初始位置信息的基础上对所述通信终端进行再次定位。
在本实施例中，以全球导航卫星系统(Global Navigation Satellite System，GNSS)网络为例，该内置芯片为GNSS芯片，通信终端为带GNSS定位功能的通信终端，通信终端和GNSS芯片是通过UART、I2C或SPI等通信总线进行连接的，通信终端会把初始定位信息通过总线传递给GNSS芯片，通信终端在获取初始位置信息之后将其作为参考位置信息，按照各个GNSS芯片提供的辅助全球卫星定位系统(Assisted Global Positioning System，AGPS)解决方案对应的协议格式发给GNSS芯片，从而加速GNSS芯片定位，提高定位精度。
以下通过两个实施例来详细说明加速定位步骤。
请参阅图2，为本申请一实施例中加速定位步骤中的详细流程示意图。图2为将本申请的加速定位步骤应用到络达公司(Airoha Technology Corp.)的GNSS EPO(Extended Prediction Orbit)Service方案，其中EPO是一种离线GPS辅助定位技术，图2中的设备是指本申请的通信终端，图2中的络达EPO Server是指络达EPO服务器，其中，通信终端(即图2中的设备)每三天或者每六个小时从络达EPO服务器下载一次EPO，然后通信终端和络达GNSS芯片之间进行信息交流来实现加速定位，具体的，通信终端给络达GNSS芯片进行上电，并在上电成功之后给络达GNSS芯片发送参考UTC(Coordinated Universal Time)时间，并在发送参考UTC时间成功之后给络达GNSS芯片发送EPO辅助数据，并在成功发送EPO辅助数据之后给络达GNSS芯片发送参考位置信息(即步骤S1中的初始位置信息)，确认给络达GNSS芯片发送参考位置信息成功。在本实施例中，通过图2中的实施方案之后，在同样的开放天空条件下，TTFF(Time to First Fix)由平均时间30多秒缩短为最快3秒，在同样的GNSS卫星弱信号覆盖的条件下，TTFF和定位精度也有极大的提高。
请参阅图3，为本申请一实施例中加速定位步骤中的另一种详细流程示意图。图3为将本申请的加速定位步骤应用到U-Blox公司的GNSS AssitNow方案，其中图3中的设备是指本申请的通信终端，图3中的UBlox GNSS是指U-Blox公司的GNSS芯片，图3中的UBlox Multiple GNSS Assistance Server是指U-Blox公司的多种全球导航卫星系统辅助服务器，其中，通信终端(即图3中的设备)根据选择的辅助定位模式设定适当的数据更新间隔，然后通信终端按照设定的间隔与服务器建立HTTP(Hyper Text Transfer Protocol)连接，并在成功建立HTTP连接之后组成HTTP Get数据请求包并将该数据请求包发送给服务器，其中该数据请求包中带有参考位置信息，在数据请求包成功发送之后从服务器接收其需要下载的数据，最后通信终端和U-Blox公司的GNSS芯片之间进行信息交流来实现加速定位，具体的，通信终端给U-Blox公司的GNSS芯片进行上电，并在上电成功之后给U-Blox公司的GNSS芯片发送参考UTC时间，并在发送参考UTC时间成功之后给U-Blox公司的GNSS芯片发送辅助定位数据，并接收发送辅助定位数据成功的消息。在本实施例中，通过图3中的实施方案之后，在同样的开放天空条件下，TTFF由平均时间30多秒缩短为最快1秒，在同样的GNSS卫星弱信号覆盖的条件下，TTFF和定位精度也有极大的提高。
请参阅图4，为本申请一实施例中定位系统1的结构示意图。
在本实施例中，定位系统1包括初始定位模块2以及加速定位模块3。
初始定位模块2，用于利用无线通信方式获取所述系统所在网络的网络信息，并根据所述网络信息确定初始位置信息。
在本实施例中，初始定位模块2具体用于：在完成网络注册后从所述网络中获取所述网络信息；判断所获取到的所述网络信息是否与上次注册网络时获取的网络信息有差异；如果没有差异，则从预先保存在所述系统中的对照表中查询得到当前的初始位置信息，其中，所述对照表包括位置信息与网络信息之间的对应关系。
在本实施例中，初始定位模块2具体还用于：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则将所获取到的所述网络信息上传至服务器；利用查询数据库的方式从所述服务器获取当前的初始位置信息。
在本实施例中，所述对照表还存储在本地网络的服务器中，初始定位模块2具体还用于：如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则通过查询本地网络的服务器，并从所述服务器中获取所述对照表；将从所述对照表中获取到的位置信息作为当前的初始位置信息。
加速定位模块3，用于利用所述通信终端的内置芯片，在所述初始位置信息的基础上对所述系统进行再次定位。
在本实施例中，系统装置项的详细说明参阅前述图1所示的方法项的详细说明，在此不做重复记载。
此外，本申请还提供一种通信终端，其中，通信终端包括存储器和处理器，存储器存储计算机处理指令，处理器通过调用计算机处理指令来执行前述的定位方法。
另外，本申请还提供一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现前述的定位方法的步骤。
本申请提供的技术方案具有以下优点：通过网络信息确定初始位置信息，然后利用内置芯片，在所述初始位置信息的基础上对所述通信终端进行再次定位，结合两次定位方式既能提高定位速度，又能提高定位精度。
值得注意的是，上述实施例中，所包括的各个单元只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。
另外，本领域普通技术人员可以理解实现上述各实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，相应的程序可以存储于一计算机可读取存储介质中，的存储介质，如ROM/RAM、磁盘或光盘等。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种定位方法，包括：
    初始定位步骤，通信终端利用无线通信方式获取所述通信终端所在网络的网络信息，并根据所述网络信息确定初始位置信息；
    加速定位步骤，利用所述通信终端的内置芯片，在所述初始位置信息的基础上对所述通信终端进行再次定位。
  2. 如权利要求1所述的定位方法，其中，所述初始定位步骤具体包括：
    所述通信终端在完成网络注册后从所述网络中获取所述网络信息；
    判断所获取到的所述网络信息是否与上次注册网络时获取的网络信息有差异；
    如果没有差异，则从预先保存在所述通信终端中的对照表中查询得到当前所述通信终端的初始位置信息，其中，所述对照表包括位置信息与网络信息之间的对应关系。
  3. 如权利要求2所述的定位方法，其中，所述初始定位步骤具体还包括：
    如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则所述通信终端将所获取到的所述网络信息上传至服务器；
    所述服务器通过查询数据库获取参考位置信息，并将所述参考位置信息返回至所述通信终端，以作为当前所述通信终端的初始位置信息。
  4. 如权利要求2所述的定位方法，其中，所述对照表还存储在本地网络的服务器中，所述初始定位步骤具体还包括：
    如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则所述通信终端通过查询本地网络的服务器，并从所述服务器中获取所述对照表；
    将从所述对照表中获取到的位置信息作为当前所述通信终端的初始位置信息。
  5. 一种定位系统，所述系统包括初始定位模块和加速定位模块；
    所述初始定位模块，用于利用无线通信方式获取所述系统所在网络的网络信息，并根据所述网络信息确定初始位置信息；
    所述加速定位模块，用于利用所述系统的内置芯片，在所述初始位置信息的基础上对所述系统进行再次定位。
  6. 如权利要求5所述的定位系统，其中，所述初始定位模块具体用于：
    在完成网络注册后从所述网络中获取所述网络信息；
    判断所获取到的所述网络信息是否与上次注册网络时获取的网络信息有差异；
    如果没有差异，则从预先保存在所述系统中的对照表中查询得到当前的初始位置信息，其中，所述对照表包括位置信息与网络信息之间的对应关系。
  7. 如权利要求6所述的定位系统，其中，所述初始定位模块具体还用于：
    如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则将所获取到的所述网络信息上传至服务器；
    利用查询数据库的方式从所述服务器获取当前的初始位置信息。
  8. 如权利要求6所述的定位系统，其中，所述对照表还存储在本地网络的服务器中，所述初始定位模块具体还用于：
    如果所获取到的所述网络信息与上次注册网络时获取的网络信息有差异，则通过查询本地网络的服务器，并从所述服务器中获取所述对照表；
    将从所述对照表中获取到的位置信息作为当前的初始位置信息。
  9. 一种通信终端，所述通信终端包括存储器和处理器，所述存储器存储计算机处理指令，所述处理器通过调用所述计算机处理指令来执行上述权利要求1-4中任一项所述的定位方法。
  10. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-4中任一项所述的定位方法的步骤。
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