CN103913756A - Locating method and electronic device - Google Patents

Locating method and electronic device Download PDF

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Publication number
CN103913756A
CN103913756A CN 201310001532 CN201310001532A CN103913756A CN 103913756 A CN103913756 A CN 103913756A CN 201310001532 CN201310001532 CN 201310001532 CN 201310001532 A CN201310001532 A CN 201310001532A CN 103913756 A CN103913756 A CN 103913756A
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China
Prior art keywords
gps
satellite
predicted
data
navigation
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CN 201310001532
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Chinese (zh)
Inventor
包鼎华
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联想(北京)有限公司
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Priority to CN 201310001532 priority Critical patent/CN103913756A/en
Publication of CN103913756A publication Critical patent/CN103913756A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/258Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to the satellite constellation, e.g. almanac, ephemeris data, lists of satellites in view
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position

Abstract

The invention discloses a locating method and an electronic device. A locating request is sent to a base station, so that available satellite list information of the base station is received, and predicted navigational satellite broadcasting data are obtained; according to an available satellite list, a satellite to be detected currently is determined, and a GPS navigation message played by the satellite to be detected currently is detected; when the assigned length of the GPS navigation message played by the satellite to be detected currently is received, the first GPS time corresponding to the GPS navigation message with the assigned length is determined according to the predicted navigational satellite broadcasting data; the first GPS time is used, so that the pseudo-range corresponding to the satellite to be detected currently is calculated; when the pseudo-ranges of the available satellites of the assigned number are calculated, the position information of the electronic device is determined according to the calculated pseudo-ranges. Consumed time for locating the electronic device can be shortened through the locating method.

Description

一种定位方法和电子设备 A positioning method of an electronic device and

技术领域 FIELD

[0001] 本发明涉及设备定位技术领域,更具体的说是涉及一种定位方法和电子设备。 [0001] The present invention relates to the field of equipment positioning technology, more particularly, to a positioning method and an electronic device.

背景技术 Background technique

[0002] GPS定位技术被广泛应用于各个领域。 [0002] GPS positioning technology has been widely used in various fields. 目前,利用GPS定位技术已经可以比较准确的定位出电子设备的位置信息。 Currently, the use of GPS technology may have more accurate positioning of the location information of the electronic device.

[0003] 利用GPS定位技术对电子设备进行定位的过程一般是通过电子设备向基站发送定位请求,并由基站将可用卫星列表发送给电子设备。 [0003] The electronic device using GPS technology positioning process is typically transmitted by the electronic device to the base station positioning request, by the base station transmits to the electronic device a list of available satellites. 该电子设备根据该可用卫星列表搜索卫星,并从搜索到的卫星中缓冲导航电文,检测导航电文中的同步信号,并从同步信号之后的导航电文中得到GPS时间,以便利用该GPS时间计算出伪距,进而将计算出的伪距发送至该基站,由基站计算出该电子设备的位置信息。 The electronic device according to the available satellite search satellites, and buffers the navigation data, detecting navigation message and the synchronization signal from the searched satellite and get GPS time from the navigation message after the synchronization signal in order to utilize the GPS time calculated pseudorange, in turn transmits calculated pseudo-range to the base station calculates the position information of the electronic device by the base station. 但是由于在从搜索到的卫星中获取导航电文时,需要在检测到同步信号之后才可以获得GPS信息,而同步信号每6秒才出现一次,这样电子设备搜索到卫星后,需要等待一段时间才可以获取到该卫星对应的GPS时间。 However, due to acquire a navigation message from the searched satellite is required before they can obtain GPS information after detecting the synchronization signal and the synchronization signal only occurs every six seconds, so that the electronic device after the search for the satellite, it is necessary to wait some time before corresponding to the satellite can be acquired GPS time. 而电子设备需要计算出针对多颗卫星的伪距信息,这样每次均需要等到一定时间,从而使得定位过程耗时较长。 And the electronic devices need to calculate distance information for a plurality of satellites dummy, so that each time to wait until a certain time, so that the positioning process takes a long time.

发明内容 SUMMARY

[0004] 有鉴于此,本发明提供一种定位方法和电子设备,该定位方法可以减少对电子设备进行定位的耗时。 [0004] Accordingly, the present invention is to provide a positioning method and an electronic device, which may reduce the time-consuming positioning method for positioning electronic device.

[0005] 为实现上述目的,本发明提供如下技术方案:一种定位方法,应用于电子设备,包括: [0005] To achieve the above object, the present invention provides the following technical solutions: a positioning method applied to an electronic device, comprising:

[0006] 向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到所述可用卫星列表中的卫星的GPS时间; [0006] The location request to the base station, the base station receives a list of available satellite information, and acquires the predicted navigation satellite broadcast data, wherein, according to the prediction of satellite navigation data broadcast time can be obtained list of available GPS satellites in the satellite;

[0007] 依据所述可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文; [0007] According to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast by satellite to be detected;

[0008] 当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间; [0008] When the GPS navigation message specifies the length of the receiving satellite currently detected playing, broadcast satellite navigation data based on the prediction, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time;

[0009] 利用所述第一GPS时间,计算与所述当前待检测卫星对应的伪距; [0009] using the first GPS time to calculate the current to be detected corresponding to the satellite pseudoranges;

[0010] 当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 [0010] Upon completion of the specified number of available satellites pseudoranges calculated location information of the electronic device is determined based on the plurality of calculated pseudo distance.

[0011] 优选的,所述获取预测导航卫星播报数据,包括: [0011] Preferably, the broadcast satellite navigation data acquiring prediction, comprising:

[0012] 从所述基站中获取所述预测导航卫星播报数据。 [0012] obtaining the predicted navigation satellite broadcast data from the base station.

[0013] 优选的,所述获取预测导航卫星播报数据,包括: [0013] Preferably, the broadcast satellite navigation data acquiring prediction, comprising:

[0014] 从指定的服务器中获取所述预测导航卫星播报数据。 [0014] obtaining the predicted navigation satellite broadcast data from the specified server.

[0015] 优选的,所述预测导航卫星播报数据,包括:[0016] 预测的GPS导航电文,所述预测的GPS导航电文的每位均对应着一个GPS时间; [0015] Preferably, the predicted navigation satellite data broadcast, comprising: [0016] predicted GPS navigation message, the predicted GPS navigation message are each corresponds to a GPS time;

[0017] 所述根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间,包括: [0017] The broadcast satellite navigation data based on the prediction, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time, comprising:

[0018] 确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; [0018] determining the length of the GPS navigation message specifies a first location of the predicted GPS navigation data;

[0019] 依据所述预测GPS导航电文中不同位所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0019] According to the predicted GPS navigation message bits corresponding to a different GPS time, determining a first position corresponding to the first GPS time.

[0020] 优选的,所述预测导航卫星播报数据,包括: [0020] Preferably, the predicted navigation satellite broadcast data, comprising:

[0021] 历书和星历数据; [0021] almanac and ephemeris data;

[0022] 在获取到预测导航卫星播报数据之后,还包括: [0022] After obtaining the predicted navigation satellite broadcast data, further comprising:

[0023] 根据所述历书和星历数据构造预测GPS导航电文; [0023] message according to the predicted GPS navigation almanac and ephemeris data structure;

[0024] 相应的,所述根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间,包括: [0024] Accordingly, the broadcast satellite navigation data based on the prediction, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time, comprising:

[0025] 确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; [0025] determining the designated length GPS navigation message in a first position of the predicted GPS navigation data;

[0026] 依据所述预测GPS导航电文中不同位置所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0026] According to the predicted GPS navigation message different positions corresponding GPS time, determining a first position corresponding to the first GPS time.

[0027] 优选的,根据计算出的多个伪距确定所述电子设备的位置信息,包括: [0027] Preferably, the electronic device is determined from the position information of the plurality of the calculated dummy, comprising:

[0028] 根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 [0028] The plurality of the calculated pseudoranges and the predicted GPS navigation message, is calculated in an electronic device on the location of the electronic device.

[0029] 另一方面,本发明还提供了一种电子设备,包括: [0029] another aspect, the present invention also provides an electronic device, comprising:

[0030] 定位请求单元,用于向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到所述可用卫星列表中的卫星的GPS时间; [0030] positioning request unit configured to send a location request to the base station, the base station receives a list of available satellite information, and acquires the predicted navigation satellite broadcast data, wherein, based on the predicted navigation satellite broadcast data may be obtained list of available satellites GPS satellite time;

[0031] 卫星搜索单元,用于依据所述可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文; [0031] The satellite search unit, according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast by satellite to be detected;

[0032] 时间确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间; [0032] The time determination means for, when the GPS navigation message specifies the length of the receiving satellite currently detected playing, broadcast satellite navigation data based on the prediction, it is determined that the GPS navigation message corresponding to the specified length The first GPS time;

[0033] 伪距计算单元,用于利用所述第一GPS时间,计算与所述当前待检测卫星对应的伪距; [0033] The pseudo-range calculation means for using the first GPS time to calculate the current to be detected corresponding to the satellite pseudoranges;

[0034] 位置确定单元,用于当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 [0034] The position determining means, upon completion of a specified number of calculated pseudoranges available satellites, a plurality of dummy calculated position information from the electronic device is determined.

[0035] 优选的,所述定位单元,包括: [0035] Preferably, the positioning unit, comprising:

[0036] 第一数据获取单元,用于从所述基站中获取所述预测导航卫星播报数据。 [0036] The first data acquiring unit for acquiring the predicted navigation satellite broadcast data from the base station.

[0037] 优选的,所述定位单元,包括: [0037] Preferably, the positioning unit, comprising:

[0038] 第二数据获取单元,用于从指定的服务器中获取所述预测导航卫星播报数据。 [0038] The second data acquiring unit, configured to obtain the predicted navigation satellite broadcast data from the specified server.

[0039] 优选的,所述定位单元获取到的预测导航卫星播报数据,包括: [0039] Preferably, the positioning unit acquired predicted navigation satellite broadcast data, comprising:

[0040] 预测的GPS导航电文,所述预测的GPS导航电文的每位均对应着一个GPS时间; [0040] predicted GPS navigation message, the predicted GPS navigation message are each corresponds to a GPS time;

[0041] 所述时间确定单元,包括: [0041] The time determination unit comprises:

[0042] 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; When the [0042] position determining means, when said GPS navigation message for a specified length of the receiving satellite currently detected playing, determining the first location specified in the predicted GPS navigation data in GPS navigation message length;

[0043] 时间子确定单元,用于依据所述预测GPS导航电文中不同位所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0043] determination sub-unit time, according to the predicted GPS navigation message bits corresponding to a different GPS time, determining a first position corresponding to the first GPS time.

[0044] 优选的,所述定位单元获取到的预测导航卫星播报数据,包括: [0044] Preferably, the positioning unit acquired predicted navigation satellite broadcast data, comprising:

[0045] 历书和星历数据; [0045] The almanac and ephemeris data;

[0046] 还包括: [0046] further comprises:

[0047] 电文构造单元,用于根据所述历书和星历数据构造预测GPS导航电文; [0047] message constructing unit, for predicting navigation data based on the GPS almanac and ephemeris data structure;

[0048] 相应的,所述时间确定单元,包括: [0048] Accordingly, the time determination unit comprises:

[0049] 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; When the [0049] position determining means, when said GPS navigation message for a specified length of the receiving satellite currently detected playing, determining the first location specified in the predicted GPS navigation data in GPS navigation message length;

[0050] 时间确定子单元,用于依据所述预测GPS导航电文中不同位置所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0050] The time determining subunit, for prediction according to the different positions of GPS navigation message corresponding GPS time, determining a first position corresponding to the first GPS time.

[0051] 优选的,位置确定单元,用于当完成指定数量的可用卫星的伪距计算时,根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 [0051] Preferably, the position determining unit, upon completion of a specified number of available satellites pseudorange calculation, based on the calculated pseudo-range and the plurality of the predicted GPS navigation message, is calculated in the electronic device the position of the electronic device.

[0052] 经由上述的技术方案可知,与现有技术相比,本发明公开提供了一种定位方法和电子设备,当需要对电子设备进行定位时,该电子设备向基站发送定位请求,接收该基站发送的可用卫星列表,并获取预测GPS卫星播报数据,并在依据可用卫星列表,当跟踪到卫星时,接收该卫星播放的指定长度的GPS导航电文,根据该预测GPS卫星播放数据来确定出该指定长度的GPS导航电文所对应的第一GPS时间,进而无需等到该卫星播放的导航电文中包含同步信号时,便可以确定出GPS时间,减少了确定卫星的GPS时间所需的时长,加快了确定伪距的速度,由于确定每颗卫星对应的GPS时间均相应较少,从而使得确定出与多颗卫星的伪距时间大大缩短,从而减少了定位耗时,提高了定位速度。 [0052] via the known technical solution, compared with the prior art, the present disclosure provides a method for positioning an electronic device and, when it is necessary to locate the electronic device, the electronic device sends a location request to the base station, receives the the base station of available satellite list transmission and acquires the predicted GPS satellite broadcast data, and based on the list of available satellites, when tracking a satellite, GPS navigation message specified length to receive the satellite broadcast, based on the predicted GPS satellite playback data is determined GPS navigation message of the specified length corresponding to the first GPS time, and thus need not wait until the satellite navigation message included in a synchronization signal broadcast, it can determine GPS time, reducing the length of time required to determine the GPS satellites, to accelerate determining the speed of pseudoranges, since each satellite is determined corresponding to GPS time are correspondingly less, so that the plurality of satellites is determined pseudoranges time is shortened, thereby reducing the time-consuming positioning, increase the positioning speed.

附图说明 BRIEF DESCRIPTION

[0053] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。 [0053] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only examples of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive other drawings from the accompanying drawings provided.

[0054] 图1示出了本发明一种定位方法一个实施例的流程示意图; [0054] FIG. 1 shows a flow diagram of a method of locating an embodiment of the present invention;

[0055] 图2示出了本发明一种定位方法另一个实施例的流程示意图; [0055] FIG 2 illustrates a method for positioning the present invention view of another embodiment of the process of the embodiment;

[0056] 图3示出了本发明一种定位方法另一个实施例的流程示意图; [0056] FIG. 3 illustrates a method of locating a schematic flow according to the present invention further embodiment;

[0057] 图4示出了本发明一种电子设备一个实施例的结构示意图。 [0057] FIG. 4 shows a schematic structural diagram of an electronic apparatus of an embodiment of the present invention.

具体实施方式 Detailed ways

[0058] 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0058] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention. [0059] 本发明实施例公开了一种定位方法,利用该定位方法可以快速的确定出该电子设备位置信息,提高电子设备的定位速度。 Embodiment [0059] The present invention discloses a method for positioning, can quickly determine the location information of the electronic apparatus using the positioning method to improve the positioning speed of the electronic device.

[0060] 参见图1,示出了本发明一种定位方法一个实施例的流程示意图,本实施例的方法应用于一电子设备,该电子设备可以为手机、pad、掌上电脑等,本实施例的方法可以包括: [0060] Referring to Figure 1, there is shown a method of locating a schematic flow chart of embodiment of the present invention embodiment, the method of the present embodiment is applied to an electronic device, the electronic device may be a mobile phone, PAD, handheld computers, etc., the present embodiment the method may include:

[0061] 步骤101:向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到可用卫星列表中的卫星的GPS时间。 [0061] Step 101: the base station sends a location request, a list of available satellite receiving base station information, and obtain the predicted navigation satellite broadcast data, wherein, according to the prediction of satellite navigation data may be obtained GPS time broadcast satellite list of available satellites.

[0062] 当需要对该电子设备进行定位时,可以向该电子设备所在的当前小区的基站发送定位请求。 [0062] When the need for positioning the electronic device may send a location request to a current base station of the cell where the electronic apparatus. 该基站接收到该电子设备的定位请求后,获取该电子设备可用的卫星列表,并将该电子设备可用的卫星列表发送至电子设备。 After the base station receives a positioning request to the electronic device, the electronic device acquires a list of available satellite, and the electronic device a list of available satellite transmission to the electronic device.

[0063] 与现有技术不同的是,该电子设备除了接收基站发送的可用卫星列表信息之外,还需要获取预测导航卫星播报数据。 [0063] Unlike the prior art it is that the electronic device in addition to a listing of available satellite information received from the base station, but also need to obtain the predicted navigation satellite broadcast data. 其中,该预测导航卫星播报数据并不是卫星当前时刻播放的数据,而是根据卫星播放的规律预测出当前时刻之后指定时间段的播放数据。 Wherein the predicted navigation satellite broadcast data broadcast satellite time data is not present, but the predicted play data specified period of time after the current time according to the laws of the satellite broadcast. 其中,依据该导航卫星播报数据至少可以得到该可用卫星列表中的卫星的GPS时间。 Among them, according to the broadcast satellite navigation data you can at least get the list of available time GPS satellites satellites.

[0064] 步骤102:依据该可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文。 [0064] Step 102: according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast satellites to be detected.

[0065] 在得到可用卫星列表后,该电子设备依据该可用卫星列表(即GPS辅助信息),逐次搜索该可用卫星列表中的可用卫星。 [0065] After obtaining a list of available satellites, the electronic device (i.e., the auxiliary information GPS) according to the list of available satellite, sequentially searches the list of available satellites available satellites. 在本申请实施例中当电子设备当前需要进行搜索的可用卫星称为当前待检测卫星,并搜索该当前待检测卫星的频段,当电子设备与该当前待检测卫星的频段相同时,该电子设备跟踪该搜索到的可用卫星的信号,以检测该待检测卫星所播放的GPS导航电文。 In the present application embodiment, when the electronic device is currently available satellites need to search for the satellite referred to the current to be detected, and the search for the satellite band currently to be detected, and when the electronic device while the band to be detected with current satellite, the electronic device tracking the satellite search available signals to detect the GPS navigation message broadcast by satellite to be detected.

[0066] 其中,该电子设备依据可用卫星列表搜索可用卫星,以搜索到该可用卫星所播放的GPS导航电文的过程与现有的依据可用卫星列表搜索可用卫星的过程相同,可以采用现有技术中任意的搜索可用卫星的方式,在此并不加以限制。 [0066] wherein, the electronic device depending on the available satellites available satellite search process to search for a GPS navigation message that is available to the conventional satellite broadcast according to the satellite search available satellites available to process the same, the prior art may be employed in any way to search for available satellites, which should not be limited.

[0067] 步骤103:当接收该当前检测卫星播放的指定长度的GPS导航电文时,根据该预测导航卫星播报数据,确定出该指定长度的GPS导航电文所对应的第一GPS时间。 [0067] Step 103: when the GPS navigation message specifies the length of the currently received detection satellite broadcast, broadcast satellite navigation data based on the prediction, it is determined that the GPS navigation message specified length corresponding to the first GPS time.

[0068] 其中,该指定长度的GPS导航电文可以根据需要进行设定,但该指定长度的GPS导航电文应小于卫星6s内所播放的导航电文的总长度。 [0068] wherein, the GPS navigation message specified length may be set as needed, but the GPS navigation message should be less than the designated length of the total length of the satellite navigation message played 6s. 换言之,接收该指定长度的导航电文的时间小于6秒。 In other words, receiving the navigation data specified length of time less than 6 seconds.

[0069] 根据预测导航卫星播报数据可以推出该指定长度的GPS导航电文所对应的第一GPS时间也可以称为GPS发射时间,即该当前检测卫星时钟中GPS发射时间,从而确定出获取到的该当前检测卫星播放该指定长度的GPS导航电文时的GPS时间。 [0069] The broadcast satellite navigation data may forecast Release GPS navigation message corresponding to the specified length of time may also be referred to as a first GPS GPS transmission time, i.e., the current detecting GPS satellite transmitter clock time to determine the acquired GPS time at which the playback of the current detected specified GPS satellite navigation message length. 由于根据该预设导航卫星播报数据和当前实时接收到的指定长度的GPS电文即可确定出第一GPS时间,从而无需等待该当前检测卫星播放的导航电文中出现同步信号即可确定出卫星时钟时间,从而使得后续计算伪距的时间提前。 Since the broadcast data currently received in real time and the GPS can determine the length of the message designated the first GPS time, eliminating the need to wait for the current broadcast satellite navigation data detected synchronization signal appears in the satellite clock can be determined according to the preset navigation satellite time, so that the subsequent calculation of pseudo range ahead of time.

[0070] 步骤104:利用该第一GPS时间,计算与该当前待检测卫星对应的伪距。 [0070] Step 104: using the first GPS time is calculated corresponding to the current to be detected satellite pseudorange.

[0071] 由于卫星时钟、接收机时钟的误差以及无线电信号经过电离层和对流层中的延迟,实际测出的距离与卫星到接收机的几何距离有一定的差值,因此,一般称量测出接收机与卫星之间的距离为伪距。 [0071] Since the satellite clock and receiver clock error and a radio signal through the ionosphere and troposphere delays, the actual measured distance to the satellite receiver has some geometric distance difference, therefore, is generally measured by weighing the distance between the receiver and the satellite pseudorange. [0072] 当获取到该第一GPS时间后,计算接收机本地时间即该电子设备本地时间与该第一GPS时间的差值,将该差值与光速相乘即可得到伪距,公式如下: [0072] After acquiring the first GPS time to calculate the local time of the receiver that is the electronic device to the local time difference between the first GPS time, by multiplying the difference between the speed of light to obtain pseudorange, the following formula :

[0073] 伪距=(接收机本地时间-GPS时间)*光速(公式一) [0073] pseudoranges = (Time -GPS receiver local time) * speed of light (Formula I)

[0074] 通过如上公式一便可以计算出伪距信息,具体的利用卫星时钟时间即第一GPS时间来计算伪距的过程与现有的计算伪距的过程类似,可以采用现有的任意方式,在此不再赘述。 [0074] can be calculated by a formula of the pseudo-range information as described above, the specific use of satellite clock time, i.e. during a first time to calculate GPS pseudorange calculation is similar to the conventional process pseudoranges may be employed in any conventional manner , not discussed here.

[0075] 步骤105:当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 [0075] Step 105: Upon completion of the specified number of calculated pseudoranges available satellites, a plurality of dummy calculated from the position information of the electronic device is determined.

[0076] 由于需要计算出该电子设备与多颗卫星之间的伪距后,才能利用多个伪距最终确定出该电子设备的位置信息。 [0076] Since the need to calculate the pseudorange between the electronic device and from the satellites, using a plurality of pseudoranges to determine final location information of the electronic device. 因此,依据获取到的可用卫星列表,需要逐次搜索并追踪多颗卫星,对于每个卫星均需要获取该卫星的时钟即GPS时间,并计算出该电子设备与每颗卫星的伪距,进而利用与多颗卫星的伪距来确定出该电子设备的位置信息。 Thus, based on the obtained list of available satellite, and need to search for tracking successive satellites, each satellite are required to acquire the GPS satellite clock i.e. time, and calculates the electronic device and for each satellite pseudo distance, and further use of satellites and determines pseudoranges the position information of the electronic device.

[0077] 其中,指定数量的可用卫星可以根据需要设定,由于确定电子设备的位置信息至少需要与四颗卫星的伪距,才可以确定出电子设备位置,因此,该指定数量应该大于或等于4,如该指定数量可以是4,也可以是8。 [0077] wherein a specified number of available satellites may be set as desired, since the determined position information of the electronic device requires at least four satellites and the pseudo distance, can determine the position of the electronic device, therefore, the number should be greater than or equal to specify 4, if the specified number may be 4, 8 may be.

[0078] 根据用与多颗卫星的伪距来确定该电子设备的位置信息具体为:该电子设备计算出的与多颗卫星的伪距后,将计算出的与多颗卫星的伪距信息发送给基站,然后由基站依据接收到的伪距计算出该电子设备的位置信息,并将计算出的电子设备的位置信息发送给该电子设备。 [0078] determining the location information of the electronic apparatus in particular according to a multi-satellite pseudoranges: After the electronic apparatus is calculated and the plurality of satellites pseudoranges calculated with the plurality of satellites pseudorange information to the base station, and then received by the base station pseudo distance is calculated based on the position information of the electronic device, and transmits the calculated position information of the electronic device to the electronic device. 其中,基站依据多个伪距来确定出电子设备的位置信息可以采用现有的任意方式,在此不加以限制。 Wherein the base station based on the plurality of pseudoranges to determine the position information of the electronic device may be employed in any conventional manner, is not limited thereto.

[0079] 本实施例中,当需要对电子设备进行定位时,该电子设备向其所在小区的基站发送定位请求,接收该基站发送的可用卫星列表,并获取预测GPS卫星播报数据,并在依据可用卫星列表,跟踪到卫星时,接收该卫星播放的指定长度的GPS导航电文,根据该预测GPS卫星播放数据来确定出该指定长度的GPS导航电文所对应的第一GPS时间,进而无需等到该卫星播放的导航电文中包含同步信号时,便可以确定出GPS时间,减少了确定卫星的GPS时间所需的时长,加快了伪距速度,由于确定每颗卫星对应的GPS时间均相应较少,从而使得确定出与多颗卫星的伪距时间大大缩短,从而减少了定位耗时,提高了定位速度。 [0079] In this embodiment, when it is necessary to locate the electronic device, the electronic device transmits a cell to its base station is located in the location request, the base station receives the list of available satellite transmission and acquires the predicted GPS satellite broadcast data, and based on the list of available satellite tracking satellite, receiving the GPS satellites broadcast navigation message specified length, according to playback the predicted GPS satellite of the GPS navigation data to determine the length of the message corresponding to the designated first GPS time, without waiting for the further when the satellite navigation message included in a synchronization signal broadcast, it can determine GPS time, reducing the length of time required to determine the GPS satellites, to accelerate the speed of pseudoranges, since each satellite is determined corresponding to GPS time are correspondingly less, so that the determined pseudoranges to a plurality of satellites time is shortened, thereby reducing the time-consuming positioning, increase the positioning speed.

[0080] 其中,获取该预测导航卫星播报数据的方式有多种,可以是从该电子设备所在小区的基站上获取该预测导航卫星播报数据,如,当该基站将可用卫星列表发送给该电子设备后,电子设备可以从基站中获取该基站中保存的预测导航卫星播报数据;或者是,该基站当该基站将可用卫星列表发送给该电子设备后,基站会主动将该预测导航卫星播报数据发送给电子设备。 [0080] wherein a variety of obtaining the predicted navigation satellite data broadcast mode, the prediction may be acquired from the navigation satellite base station for the cell where the data broadcast electronic device, e.g., when the base station transmits to the electronic list of available satellites after the device, the electronic device can obtain the base station stored in the predicted navigation satellite broadcast data from the base station; Alternatively, the base station when the base station transmits a list of available satellite to the electronic device, the base station will automatically predict the broadcast satellite navigation data sent to the electronic device.

[0081] 获取该预测导航卫星播报数据也可以是从指定的服务器中下载该预测的导航卫星播放数据。 [0081] to obtain the predicted navigation satellite broadcast data can be downloaded to play the predicted navigation satellite data from the specified server.

[0082] 参见图2,示出了本发明一种定位方法另一个实施例的流程示意图,本实施例的方法应用于一电子设备,该电子设备可以为手机、pad、掌上电脑等,本实施例的方法可以包括: [0082] Referring to Figure 2, there is shown a schematic flow diagram of the positioning method of the present invention according to another embodiment, the method of the present embodiment is applied to an electronic device, the electronic device may be a mobile phone, PAD, handheld computers, etc., the present embodiment the method of embodiment may comprise:

[0083] 步骤201:向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测的GPS导航电文,其中,所述预测的GPS导航电文中的每位对应一个GPS时间。 [0083] Step 201: the base station sends a location request, a list of available satellite receiving base station information, and obtain the predicted GPS navigation messages, wherein each bit corresponding to the predicted GPS navigation message and a GPS time. [0084] 其中,获取预测的GPS导航电文可以采用如上所述的通过从基站或者指定服务器中获取该预测的GPS导航电文。 [0084] wherein obtaining the predicted GPS navigation message from the base station can be acquired by using a specified server or the predicted GPS navigation message as described above.

[0085] 在本实施例中预测的导航卫星播报数据可以具体为预测的GPS导航电文。 [0085] In the present embodiment the prediction embodiment of satellite broadcast navigation data may be specific to the predicted GPS navigation message. 预测的导航电文中每位均对应一个GPS时间,因此如果确定出导航电文在该预测的导航电文中的位置,并可以得到该位置所对应的卫星时钟时刻。 Each predicted navigation message corresponds a GPS time, so if it is determined that the position of the navigation message is predicted navigation data and satellite clock timing can be obtained corresponding to that location.

[0086] 由于卫星播报的导航电文的基本单位是长1500bit的一个主帧,传输速率是50bit/s,其30秒钟传送完毕一个主帧。 [0086] Since the basic unit of the satellite navigation message broadcast is a long 1500bit main frame, the transmission rate is 50bit / s, which transmits a main frame 30 seconds to complete. 一个主帧包括5个子帧,第1、2、3子帧每30秒钟重复一次,内容每小时更新一次。 A main frame includes 5 subframes, subframe 1, 2 is repeated every 30 seconds, and is updated every hour. 第4、5子帧是12.5分钟播完一次,然后再重复之,其内容仅在卫星注入新的导航数据后才得以更新。 4,5 subframe is 12.5 minutes aired once, and then repeated, and the contents injected only satellite new navigation data before updated. 因此,在一定时间内,卫星播报的导航电文中的参数内容并不会发生改变,发生改变的仅仅是该导航电文中GPS发射时间,即GPS时间。 Thus, within a certain time, the parameter content broadcast by the satellite navigation message and does not change, the only change in the GPS navigation message transmission time, i.e. the GPS time. 同时,由于卫星播放导航电文的过程中,每6秒会出现一次GPS时间,这样,如果当前时刻接收到的导航电文的GPS时间确定后,后续播报的导航电文的GPS时间也可以推测出来。 Meanwhile, since the process of playing the satellite navigation message, a GPS time occur every 6 seconds, so that, if the current time received GPS time to determine the navigation message, time of the subsequent broadcast of GPS navigation data can also be inferred. 也就是说,在当前播报导航电文的GPS时间基础上,确定出后续在播报的电文的延迟时间,将当前播报导航电文的GPS时间基础上加上延迟时间,即为后续待播报的导航电文的播报时间即GPS时间。 In other words, the basis of the current time GPS navigation message broadcast on the follow-up to determine the broadcast of messages in the delay time, delay time will be GPS time plus the current navigation message broadcast on the follow-up that is to be broadcast in the navigation message broadcast namely GPS time.

[0087] 基于以上原理,可以预测出卫星播报的GPS导航电文,并确定出预测的导航电文中不同位对应的GPS时间。 [0087] Based on the above principles can predict the satellite navigation message broadcast by GPS, and the determined predicted navigation message corresponding to the different bits of GPS time.

[0088] 步骤202:依据该可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文。 [0088] Step 202: according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast satellites to be detected.

[0089] 该步骤的操作过程与图1所示实施例的步骤102的操作过程类似,在此不再赘述 [0089] The procedure of Example of the operation of the process steps shown in FIG. 1 is similar to the operation 102, not described herein again

[0090] 步骤203:当接收该当前检测卫星播放的指定长度的GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置。 [0090] Step 203: when the GPS navigation message specifies the length of the currently received broadcast satellite detection, determining the GPS navigation message length specified in the first predicted position of the GPS navigation data.

[0091] 接收到该指定长度的GPS导航电文后,可以将接收到该指定长度的GPS导航电文与该预测出的GPS导航电文进行比对,从而确定出该指定长度的GPS导航电文应该位于该预测出的GPS导航电文的具体位置。 [0091] After receiving the GPS navigation message of the specified length, may convert the received GPS navigation message of the specified length out of the predicted GPS navigation message for comparison to determine the GPS navigation message of the specified length should be in the predicted GPS navigation data specific location. 在本实施例中将该指定长度的GPS导航电文在该预测GPS导航电文中的位置成为第一位置。 The GPS navigation message length specified in the embodiment of the present embodiment in the predicted location in the GPS navigation message becomes a first position.

[0092] 步骤204:依据该预测GPS导航电文中不同位所对应的GPS时间,确定第一位置对应的第一GPS时间。 [0092] Step 204: based on the GPS time corresponding to the different bits of the predicted GPS navigation message, determining a first position corresponding to the first GPS time.

[0093] 由于预测出的GPS导航电文的不同位对应着一个固定的GPS时间,在确定出该接收到的指定长度的导航电文在该预测导航电文中的第一位置后,可以确定出该第一位置所对应的数据位的GPS时间,从而确定出卫星播报该指定长度的GPS导航电文的卫星播报时刻。 [0093] Due to the different bit predicted GPS navigation data corresponds to a fixed GPS time, after determining the first position of the received navigation message length specified in the predicted navigation message can be determined that the first a position corresponding to the data bits GPS time to determine the GPS satellites broadcast navigation message of the satellite broadcast time specified length.

[0094] 步骤205:利用该第一GPS时间,计算与该当前待检测卫星对应的伪距。 [0094] Step 205: using the first GPS time is calculated corresponding to the current to be detected satellite pseudorange.

[0095] 步骤206:当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 [0095] Step 206: Upon completion of the specified number of available satellites pseudoranges calculated location information of the electronic device is determined based on the plurality of calculated pseudo distance.

[0096] 步骤205和步骤206的操作过程与图1所示实施例的操作过程类似,在此不再赘述。 Operation [0096] Step 205 and step 206 of FIG. 1 embodiment is similar to the operation, which is not repeated herein.

[0097] 在本实施例中由于获取到预测的GPS导航电文,当确定出与指定数据的可用卫星的伪距后,计算该电子设备的位置信息也可以在该电子设备内完成,具体的,可以是根据预测的GPS导航电文以及伪距计算出该电子设备的位置信息。 [0097] In the present embodiment, since the obtained predicted GPS navigation message, when the available satellites is determined that the specified data pseudoranges calculated electronic device location information may also be done in the electronic device, specifically, It may be calculated based on the prediction of the electronic device of the navigation message and the pseudorange GPS position information. 根据完整的GPS导航电文和伪距计算该电子设备的位置信息的过程与现有的利用GPS导航电文和伪距计算电子设备的位置信息的过程相同。 The same procedure location information of the electronic apparatus in accordance with the calculated complete GPS navigation message and the pseudorange process calculates position information from the electronic device using the conventional GPS navigation message and the dummy. 但是由于本实施例中无需将伪距发送给基站,并由基站依据伪距来计算出该电子设备的位置信息后再将计算出的位置信息返回给该电子设备,从而减少了电子设备与基站的交互次数,进而减少了网络负担,也进一步提高了定位速度。 However, due to the present embodiment without the pseudoranges to the base station by the base station pseudo distance is calculated based on the position information of the electronic device before the calculated position information back to the electronic device, an electronic device and to reduce the base station the number of interactions, thereby reducing the burden on the network, but also further improve the positioning speed.

[0098] 需要说明的是,在实际应用中为了减少网络数据传输量,进而减少数据传输时长。 [0098] Note that, in practical applications in order to reduce the amount of network transmission of data, thereby reducing data transmission duration. 该获取到的预测的GPS导航电文可以不是完整GPS导航电文,即预测的GPS导航电文中可以不用完全包含长1500bit的一个主帧,可以仅仅是包含主帧的其中一部分内容,只要是能保证在获取到预测的GPS导航电文中确定出接收到的指定长度的导航电文的位置即可,具体可以根据需要进行设定。 The acquired predicted GPS navigation message may not be a complete GPS navigation message, i.e., the predicted GPS navigation message can not fully contain a main frame length 1500bit may simply comprise a main frame part of the content, as long as it can guarantee to obtain the predicted GPS navigation message to determine the location of the navigation message received by a specified length, it can be set according to specific needs.

[0099] 参见图3,示出了本发明一种定位方法另一个实施例的流程示意图,本实施例的方法应用于一电子设备,该电子设备可以为手机、pad、掌上电脑等,本实施例的方法可以包括: [0099] Referring to Figure 3, there is shown a schematic flow diagram of the positioning method of the present invention according to another embodiment, the method of the present embodiment is applied to an electronic device, the electronic device may be a mobile phone, PAD, handheld computers, etc., the present embodiment the method of embodiment may comprise:

[0100] 步骤301:向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测的导航卫星播报数据,其中,预测的导航卫星播报数据中包括星历和历书数据,依据该预测导航卫星播报数据可以得到可用卫星列表中的卫星的GPS时间。 [0100] Step 301: sending to the base station location request, a list of available satellite information receiving base station, and obtain the predicted navigation satellite broadcast data, wherein the predicted navigation satellite broadcast data comprises ephemeris and almanac data, based on the predicted navigation satellite broadcast time data can get a list of available GPS satellites in the satellite.

[0101 ] 本实施例中获取到的导航卫星播报数据可以是卫星的星历和历书数据。 [0101] In the present embodiment acquired navigation satellite broadcast data may be implemented satellite ephemeris and almanac data. 获取该星历和历书数据的方式可以是从基站或者是指定服务器中获取。 Acquire the ephemeris and almanac data may be acquired from the manner specified base station or the server.

[0102] 由于卫星播放的GPS导航电文中由每30秒重复一个的星历和每12.5分钟重复一次的历书组成,而且星历和历书一般都是I个小时或两个小时才会更新一次,因此,指定时间内卫星播报的导航电文中的参数内容可以由星历和历书数据推测出GPS导航电文。 [0102] Since the GPS satellites broadcast navigation message is repeated every 30 seconds by a ephemeris every 12.5 minutes, and repeat the composition almanac, and ephemeris and almanac I generally an hour or two hours before updated, Thus, the parameter content within a specified time broadcast satellite navigation messages can be inferred from the GPS navigation message ephemeris and almanac data. 在该历书和星历数据中至少一部分数据中含有GPS时间。 At least a portion of the data contained in the GPS time and almanac ephemeris data. 这样,依据该预测导航卫星播报数据可以推测出不同数据位的GPS时间。 Thus, according to the predicted navigation satellite broadcast GPS data it can be inferred bits of data at different times.

[0103] 步骤302:根据所述历书和星历数据构造预测的GPS导航电文。 [0103] Step 302: according to the almanac and ephemeris data structure predicted GPS navigation message.

[0104] 参照图2实施例的步骤201中的原理以及该步骤301中的如上原理,可知,获取到的星历和历书数据构造预测的导航电文,在该预测的导航电文中每一位对应一个固定的GPS时间。 [0104] Step embodiments with reference to FIG. 2 Principle 201 and step 301 above principles, it is understood, the acquired data structure predicted ephemeris and almanac navigation data, each bit corresponding to the predicted navigation message a fixed GPS time.

[0105] 步骤303:依据该可用卫星列表,确定当前待检测卫星,并检测该当前待检测卫星所播放的GPS导航电文。 [0105] Step 303: according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast satellites to be detected.

[0106] 需要说明的是,该步骤302和步骤303的执行过程可以是先执行步骤302再执行步骤303,也可以是这两个步骤同时执行。 [0106] Incidentally, the execution of steps 302 and 303 may be performed before step 302 and then step 303 is performed, these two steps may be performed simultaneously.

[0107] 步骤304:当接收该当前检测卫星播放的指定长度的GPS导航电文时,确定该指定长度的GPS导航电文在所述预测GPS导航电文的第一位置。 [0107] Step 304: when the GPS navigation message specifies the length of the receiving satellite currently detected playing, determining a first position of the predicted GPS navigation message of the GPS navigation message specified length.

[0108] 步骤305:依据该预测GPS导航电文中不同位所对应的GPS时间,确定该第一位置对应的第一GPS时间。 [0108] Step 305: based on the GPS time corresponding to the different bits of the predicted GPS navigation message, determining a first position corresponding to the first GPS time.

[0109] 步骤306:利用该第一GPS时间,计算与该当前待检测卫星对应的伪距。 [0109] Step 306: using the first GPS time is calculated corresponding to the current to be detected satellite pseudorange.

[0110] 步骤307:当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定该电子设备的位置信息。 [0110] Step 307: Upon completion of the specified number of available satellites pseudorange calculation, based on the calculated position information of the plurality of pseudoranges is determined electronic device.

[0111] 其中步骤304至步骤307的执行过程与图2所示实施例的相应步骤的执行过程相似,具体可以参见图2所示实施例的相关描述,在此不再赘述。 Process execution procedure [0111] Step 304 to step 307 wherein the corresponding steps of the embodiment shown in FIG. 2 is similar to the specific embodiment shown in the related description can be found in FIG. 2, not described herein again.

[0112] 在本实施例中当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定该电子设备的位置信息同样可以是:根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 [0112] In the present embodiment, upon completion of a specified number of available satellites when a pseudo-range calculation, determining that the electronic device from the plurality of dummy according to the calculated position information may likewise be: the plurality based on the calculated pseudoranges and the said predicted GPS navigation message to calculate the position of an electronic device on the electronic device. 该过程与图2实施例中的相关描述相同。 Figure 2 The process is the same as described in the relevant embodiment.

[0113] 对应本发明的一种定位方法,本发明还提供了一种电子设备,参见图4,示出了本发明一种电子设备一个实施例的结构示意图,本实施例的电子设备可以包括: [0113] A positioning method corresponding to the present invention, the present invention also provides an electronic apparatus, see FIG. 4, there is shown a schematic structural diagram of an electronic apparatus of an embodiment of the present invention, an electronic apparatus according to the present embodiment may include :

[0114] 定位请求单元410,用于向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到所述可用卫星列表中的卫星的GPS时间。 [0114] Location request unit 410, configured to send a location request to the base station, a list of available satellite information receiving base station, and acquires the predicted navigation satellite broadcast data, wherein, based on the predicted navigation satellite broadcast data may be obtained in the list of available satellites GPS time of the satellite.

[0115] 卫星搜索单元420,用于依据所述可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文。 [0115] satellite search unit 420, according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast satellites to be detected.

[0116] 时间确定单元430,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间。 [0116] time determining unit 430, a GPS navigation message when the specified length of said current detecting receiving satellite broadcast, broadcast satellite navigation data based on the prediction, it is determined that the designated length corresponding GPS navigation message the first GPS time.

[0117] 伪距计算单元440,用于利用所述第一GPS时间,计算与所述当前待检测卫星对应的伪距。 [0117] pseudo-range calculation unit 440, for using the first GPS time is calculated with the current to be detected corresponding to the satellite pseudorange.

[0118] 位置确定单元450,用于当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 [0118] The position determination unit 450, upon completion of a specified number of calculated pseudoranges available satellites, a plurality of dummy calculated position information from the electronic device is determined.

[0119] 其中,该定位请求单元在获取预测导航卫星播报数据的方式有多种,对应其中一种方式,该定位请求可以包括: [0119] wherein the location request unit acquires predicted navigation satellite data broadcast has a variety of ways, one way corresponding to the location request may include:

[0120] 第一数据获取单元,用于从所述基站中获取所述预测导航卫星播报数据。 [0120] The first data acquiring unit for acquiring the predicted navigation satellite broadcast data from the base station.

[0121] 对应该定位请求单元获取预测导航卫星播报数据的另一种方式,该定位请求单元可以包括: [0121] Another embodiment of the data to be broadcast request unit acquires predicted navigation positioning satellite, the positioning unit may request comprises:

[0122] 第二数据获取单元,用于从指定的服务器中获取所述预测导航卫星播报数据。 [0122] The second data acquiring unit, configured to obtain the predicted navigation satellite broadcast data from the specified server.

[0123] 本实施例的电子设备中,当需要对电子设备进行定位时,该电子设备向其所在小区的基站发送定位请求,接收该基站发送的可用卫星列表,并获取预测GPS卫星播报数据,并在依据可用卫星列表,跟踪到卫星时,接收该卫星播放的指定长度的GPS导航电文,根据该预测GPS卫星播放数据来确定出该指定长度的GPS导航电文所对应的第一GPS时间,进而无需等到该卫星播放的导航电文中包含同步信号时,便可以确定出GPS时间,减少了确定卫星的GPS时间所需的时长,加快了伪距速度,由于确定每颗卫星对应的GPS时间均相应较少,从而使得确定出与多颗卫星的伪距时间大大缩短,从而减少了定位耗时,提高了定位速度。 [0123] Examples of the electronic apparatus of the present embodiment, when the electronic device needs to be positioned where the base station for the cell to which the electronic device sends a location request, the base station receives the list of available satellite transmission and acquires the predicted GPS satellite broadcast data, and based on the list of available satellite tracking satellite, receiving the GPS satellites broadcast navigation message specified length, according to playback the predicted GPS satellite of the GPS navigation data to determine the length of the message corresponding to the designated first GPS time, and further without when a navigation message of the satellite broadcast contains a synchronization signal to wait until it can determine GPS time, reducing the time period required to GPS time satellites to speed up the pseudorange rate, since it is determined each satellite corresponding to the GPS time average corresponding less, so that the plurality of satellites and determine the pseudoranges time is shortened, thereby reducing the time-consuming positioning, increase the positioning speed.

[0124] 其中,获取到的预测导航卫星播报数据的类型可以有多种,具体的,该定位请求单元获取到的预测导航卫星播报数据可以包括: [0124] wherein, the acquired predicted navigation satellite broadcast data type can have a variety of, particularly, the location request to the prediction unit acquires broadcast satellite navigation data may comprise:

[0125] 预测的GPS导航电文,所述预测的GPS导航电文的每位均对应着一个GPS时间。 [0125] predicted GPS navigation message, the predicted GPS navigation message are each corresponds to a GPS time.

[0126] 相应的,该时间确定单元,可以包括: [0126] Accordingly, the time determination unit may include:

[0127] 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置;[0128] 时间子确定单元,用于依据所述预测GPS导航电文中不同位所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0127] position determining means, when receiving said current GPS navigation message specifies the length of the detected satellite broadcast, GPS navigation message to determine the designated length in a first position of the predicted GPS navigation data; [ 0128] determination sub-unit time, according to the predicted GPS navigation message bits corresponding to a different GPS time, determining a first position corresponding to the first GPS time.

[0129] 在另一种情况下,该定位请求单元获取到的预测导航卫星播报数据,可以包括: [0129] In another case, the location request acquired prediction unit broadcast satellite navigation data may comprise:

[0130] 历书和星历数据。 [0130] almanac and ephemeris data.

[0131] 相应的,该电子设备还包括: [0131] Accordingly, the electronic apparatus further comprises:

[0132] 电文构造单元,用于根据所述历书和星历数据构造预测GPS导航电文; [0132] message constructing unit, for predicting navigation data based on the GPS almanac and ephemeris data structure;

[0133] 与此对应的,该时间确定单元,包括: [0133] corresponding to this, the time determination unit comprises:

[0134] 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; When the [0134] position determining means, when said GPS navigation message for a specified length of the receiving satellite currently detected playing, determining the first location specified in the predicted GPS navigation data in GPS navigation message length;

[0135] 时间确定子单元,用于依据所述预测GPS导航电文中不同位置所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 [0135] time determining subunit, for prediction according to the different positions of GPS navigation message corresponding to GPS time, determining a first position corresponding to the first GPS time.

[0136] 在该电子设备中获取到预测导航电文的基础上,本实施例中该位置确定单元可以实现在电子设备中依据伪距计算出其自身的位置信息,具体的,该位置确定单元,用于当完成指定数量的可用卫星的伪距计算时,根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 [0136] acquiring the electronic device to the base predicted navigation data, the present embodiment the position determining unit may be implemented according to the pseudo-range to calculate its own location information in an electronic device, specifically, the position determining unit embodiment, configured to, when a specified number of available satellites complete pseudorange calculation, based on the calculated pseudo-range and the plurality of the predicted GPS navigation message, is calculated in an electronic device on the location of the electronic device.

[0137] 本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。 [0137] In the present specification, the various embodiments described in a progressive manner, differences from the embodiment and the other embodiments each of which emphasizes embodiment, the same or similar portions between the various embodiments refer to each other. 对于实施例公开的电子设备而言,由于其与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。 For the disclosed embodiment of the electronic device, since it corresponds to the method disclosed embodiments, the description is relatively simple, see Methods of the correlation can be described.

[0138] 对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。 [0138] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。 Various modifications to these professionals skilled in the art of the present embodiments will be apparent, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. 因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。 Accordingly, the present invention will not be limited to the embodiments shown herein but is to be accorded herein consistent with the principles and novel features disclosed widest scope.

Claims (12)

1.一种定位方法,应用于电子设备,其特征在于,包括: 向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到所述可用卫星列表中的卫星的GPS时间;依据所述可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文; 当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间; 利用所述第一GPS时间,计算与所述当前待检测卫星对应的伪距; 当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 CLAIMS 1. A positioning method applied to an electronic apparatus comprising: the base station sends a location request, a list of available satellite information receiving base station, and acquires the predicted navigation satellite broadcast data, wherein, based on the predicted navigation satellite broadcast data GPS satellite time can be obtained in the available list of satellites; according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast by the satellites to be detected; the detection when receiving the current satellite playing when specifying the length of the GPS navigation message, the predicted navigation satellite broadcast according to the data, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time; using the first GPS time, and calculates the the current to be detected corresponding to the satellite pseudoranges; upon completion of the specified number of available satellites pseudoranges calculated location information of the electronic device is determined based on the plurality of calculated pseudo distance.
2.根据权利要求1所述的方法,其特征在于,所述获取预测导航卫星播报数据,包括: 从所述基站中获取所述预测导航卫星播报数据。 2. The method according to claim 1, wherein the obtaining the predicted navigation satellite data broadcast, comprising: obtaining the predicted navigation satellite broadcast data from the base station.
3.根据权利要求1所述的方法,其特征在于,所述获取预测导航卫星播报数据,包括: 从指定的服务器中获取所述预测导航卫星播报数据。 3. The method according to claim 1, wherein the obtaining the predicted navigation satellite data broadcast, comprising: obtaining the predicted navigation satellite broadcast data from the specified server.
4.根据权利要求1所述的方法,其特征在于,所述预测导航卫星播报数据,包括: 预测的GPS导航电文,所述预测的GPS导航电文的每位均对应着一个GPS时间; 所述根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间,包括: 确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; 依据所述预测GPS导航电文中不同位所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 4. The method according to claim 1, wherein the prediction of satellite navigation data broadcast, comprising: a predicted GPS navigation message, the predicted GPS navigation message are each corresponds to a GPS time; the the broadcast satellite navigation data to the prediction, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time, comprising: a first position of the GPS navigation data predicted GPS navigation message to determine the designated length; according to the predicted GPS navigation message bits corresponding to a different GPS time, determining a first position corresponding to the first GPS time.
5.根据权利要求1所述的方法,其特征在于,所述预测导航卫星播报数据,包括: 历书和星历数据; 在获取到预测导航卫星播报数据之后,还包括: 根据所述历书和星历数据构造预测GPS导航电文; 相应的,所述根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间,包括: 确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; 依据所述预测GPS导航电文中不同位置所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 5. The method according to claim 1, wherein the prediction of satellite navigation data broadcast, comprising: almanac and ephemeris data; After obtaining the predicted navigation satellite broadcast data, further comprising: based on the ephemerides and GPS ephemeris data structure predicted navigation message; correspondingly, said prediction based on said satellite navigation data broadcast, it is determined that the designated length of the GPS navigation message corresponding to a first GPS time, comprising: determining the designated length GPS navigation a first message of the prediction position of the GPS navigation data; GPS navigation message according to the predicted positions corresponding to different GPS time, determining a first position corresponding to the first GPS time.
6.根据权利要求4或5所述的方法,其特征在于,根据计算出的多个伪距确定所述电子设备的位置信息,包括: 根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 The method according to claim 4 or claim 5, wherein location information of the electronic device is determined based on the plurality of calculated pseudo distance, comprising: the plurality of pseudoranges and said predicted based on the calculated GPS navigation data, calculating the position of an electronic device on the electronic device.
7.—种电子设备,其特征在于,包括: 定位请求单元,用于向基站发送定位请求,接收基站的可用卫星列表信息,并获取预测导航卫星播报数据,其中,依据所述预测导航卫星播报数据可以得到所述可用卫星列表中的卫星的GPS时间; 卫星搜索单元,用于依据所述可用卫星列表,确定当前待检测卫星,并检测所述当前待检测卫星所播放的GPS导航电文; 时间确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,根据所述预测导航卫星播报数据,确定出所述指定长度的GPS导航电文所对应的第一GPS时间; 伪距计算单元,用于利用所述第一GPS时间,计算与所述当前待检测卫星对应的伪距;位置确定单元,用于当完成指定数量的可用卫星的伪距计算时,根据计算出的多个伪距确定所述电子设备的位置信息。 7.- electronic apparatus, comprising: positioning request unit configured to send a location request to the base station, a list of available satellite information receiving base station, and acquires the predicted navigation satellite broadcast data, wherein, based on the predicted navigation satellite broadcast GPS time of the satellite data may be obtained in the list of satellites available; satellite search unit, according to the list of available satellites, satellites to determine the current to be detected, and the detected current GPS navigation message broadcast by satellite to be detected; time determination means for, when the GPS navigation message specifies the length of the receiving satellite currently detected playing, broadcast satellite navigation data based on the prediction, it is determined that the designated length of the GPS navigation message corresponding to the first GPS time ; pseudo-range calculation means for using the first GPS time to calculate the current to be detected corresponding to the satellite pseudoranges; position determining means, upon completion of a specified number of available satellites pseudorange calculation, based on the calculation location information of the electronic device out of the plurality of pseudoranges is determined.
8.根据权利要求7所述的电子设备,其特征在于,所述定位单元,包括: 第一数据获取单元,用于从所述基站中获取所述预测导航卫星播报数据。 8. The electronic device according to claim 7, wherein said positioning unit comprises: a first data acquisition unit for acquiring the predicted navigation satellite broadcast data from the base station.
9.根据权利要求7所述的电子设备,其特征在于,所述定位单元,包括: 第二数据获取单元,用于从指定的服务器中获取所述预测导航卫星播报数据。 9. The electronic device according to claim 7, wherein said positioning unit comprises: a second data acquisition unit for acquiring the predicted navigation satellite broadcast data from the specified server.
10.根据权利要求7所述的电子设备,其特征在于,所述定位单元获取到的预测导航卫星播报数据,包括: 预测的GPS导航电文,所述预测的GPS导航电文的每位均对应着一个GPS时间; 所述时间确定单元,包括: 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; 时间子确定单元,用于依据所述预测GPS导航电文中不同位所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 10. The electronic device according to claim 7, wherein said positioning unit acquired predicted navigation satellite broadcast data, comprising: a predicted GPS navigation message, the predicted GPS navigation data corresponds with each a GPS time; the time determination unit comprises: position determining means, when receiving said current GPS navigation message specifies the length of the detected satellite broadcast, GPS navigation message to determine the designated length in the prediction a first position of the GPS navigation data; time determining sub-unit, according to the predicted GPS navigation message bits corresponding to a different GPS time, determining a first position corresponding to the first GPS time.
11.根据权利要求7所述的电子设备,其特征在于,所述定位单元获取到的预测导航卫星播报数据,包括: 历书和星历数据; 还包括: 电文构造单元,用于根据所述历书和星历数据构造预测GPS导航电文; 相应的,所述时间确定单元,包括: 位置确定单元,用于当接收所述当前检测卫星播放的指定长度的所述GPS导航电文时,确定所述指定长度的GPS导航电文在所述预测GPS导航电文的第一位置; 时间确定子单元,用于依据所述预测GPS导航电文中不同位置所对应的GPS时间,确定所述第一位置对应的第一GPS时间。 11. The electronic device according to claim 7, wherein said positioning unit acquired predicted navigation satellite broadcast data, comprising: almanac and ephemeris data; further comprising: a message constructing unit, according to the almanac and ephemeris data structure predicted GPS navigation message; correspondingly, the time determination unit comprises: position determining means, when receiving said current GPS navigation message specifies the length of the detected broadcast satellites, determining the designated GPS navigation message length position in the first predicted GPS navigation data; time determining subunit, for prediction according to the different positions of GPS navigation message corresponding to GPS time, determining a first position corresponding to the first GPS time.
12.根据权利要求10或11所述的电子设备,其特征在于,位置确定单元,用于当完成指定数量的可用卫星的伪距计算时,根据计算出该多个伪距以及所述预测的GPS导航电文,在所述电子设备上计算出所述电子设备的位置。 12. The electronic device of claim 10 or claim 11, wherein the position determining means, upon completion of a specified number of available satellites pseudorange calculation, based on the calculated and the plurality of said predicted pseudorange GPS navigation message to calculate the position of an electronic device on the electronic device.
CN 201310001532 2013-01-04 2013-01-04 Locating method and electronic device CN103913756A (en)

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