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公开(公告)号：KR101633392B1
公开(公告)日：2016-06-24
申请号：KR1020150069568
申请日：2015-05-19
Applicant: 한국과학기술원
Inventor： 이지윤
Abstract: 본발명은우주기상예보시스템을활용하여 GNSS(global navigation satellite system) 보강시스템의실시간전리층위협모델을적용하기위한방법에관한것으로서, 더욱상세하게는우주기상정보와 GNSS 보강시스템에가장큰 오차요인인전리층위협과의관계를규명하고이를활용함으로써, 현재시스템에서적용하는방법인가장최악의위협모델을적용하는것이아니라우주기상예보값을활용하여우주기상에따른실시간전리층위협모델을적용하는방법에관한것이다. 본발명에의하면, 외부소스인우주기상정보를활용하여전리층위협을완화하고효율적인모델링을통해항법시스템성능을개선하는기법을발명하여, 실시간우주기상예보값을활용하여, 사용자가적용하는위협모델값을고정값이아닌단계별로선택하여적용할수 있도록하는효과가있다. 이는사용자가계산하는무결성정보인보호수준을낮추며, 그에따른시스템가용성을향상시킬수 있다.
Abstract translation: 本发明涉及使用空间天气预报系统应用全球导航卫星系统（GNSS）增强系统的实时电离层威胁模型的方法。 更具体地说，本发明涉及根据现有技术，根据空间天气而不是最差威胁模型应用实时电离层威胁模型的方法，通过确定空间天气信息与电离层威胁之间的关系 GNSS增强系统的最大误差因素，并利用该关系。 根据本发明，提供了一种通过减轻电离层威胁并利用作为外部源的空间天气信息来进行有效建模来提高导航系统性能的技术。 由于利用实时空间天气预报值，由用户应用的威胁模型值不被设置为常数值，而是针对各个步骤选择。 因此，与用户计算出的完整性信息对应的安全级别降低，从而提高系统的可用性。 使用空间天气预报系统应用GNSS增强系统的实时电离层威胁模型的系统包括：空间天气预报误差统计分析模块，预测误差界限模块，电离层威胁模型应用模块，干扰风暴数据库 ，以及控制单元。
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公开(公告)号：KR1020140026902A
公开(公告)日：2014-03-06
申请号：KR1020120092664
申请日：2012-08-23
Applicant: 한국과학기술원
Abstract: The present invention relates to a method and an apparatus for providing flag data by GPS data analysis and, more specifically, to a method and a system for providing flag data by GPS data analysis, which records and provides a pre-processing flag having a history of a pre-processing process of ionospheric delay estimation by pre-processing of GPS carrier data for each ground station, and monitor an actual ionosphere abnormality by checking the recorded pre-processing flag. According to the present invention, the method can judge whether data having an extreme ionosphere slope is resulted from an actual ionosphere abnormality, or a receiver fault or a material processing error using the recorded pre-processing flag. Also, the method can mitigate load under rising pressure in a process for judging validity of the ionosphere abnormality manually, by maximally automating an auto screening process which removes candidates which are not automatically an actual ionosphere abnormality among the candidates judged as an ionosphere abnormality. [Reference numerals] (AA) Start; (BB) End; (S210) Receive GPS data; (S220) Calculate carrier ionosphere delay error data from GPS data; (S230) Analyze carrier ionosphere delay error data; (S240) Examine abnormal condition occurrence; (S251) Detect start point of data arc; (S252) Record start point in flag; (S261) Detect cycle slip; (S262) Leveling processing; (S263) Record detection of cycle slip in flag; (S271) Outlier detection; (S272) Outlier removal; (S273) Record outlier removal in flag
Abstract translation: 本发明涉及一种用于通过GPS数据分析提供标志数据的方法和装置，更具体地说，涉及一种用于通过GPS数据分析提供标志数据的方法和系统，该数据分析记录并提供具有历史的预处理标志 通过预处理每个地面站的GPS载波数据进行电离层延迟估计的预处理过程，并通过检查记录的预处理标志来监视实际的电离层异常。 根据本发明，该方法可以使用记录的预处理标志来判断具有极端电离层斜率的数据是否是由实际的电离层异常，接收器故障或材料处理错误导致的。 此外，该方法可以通过最大程度自动化自动筛选处理来自动判断为电离层异常的候选者中的不自动实际的电离层异常的候选物，来自动地判断电离层异常的有效性的过程中可以缓解上升的压力。 （附图标记）（AA）开始; （BB）结束; （S210）接收GPS数据; （S220）从GPS数据计算载波电离层延迟误差数据; （S230）分析载波电离层延迟误差数据; （S240）检查异常情况; （S251）检测数据弧的起点; （S252）记录起始点; （S261）检测循环滑移; （S262）流平处理; （S263）标志中循环滑移的记录检测; （S271）异常值检测; （S272）异常移除; （S273）记录异常值移除标志
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Patent Agency Ranking
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公开(公告)号：KR101428517B1
公开(公告)日：2014-08-11
申请号：KR1020120092664
申请日：2012-08-23
Applicant: 한국과학기술원
Abstract: 본 발명은 GPS 데이터 분석에 의한 플래그 데이터 제공 방법 및 시스템에 관한 것으로, 보다 상세하게는 각 지상국의 GPS 반송파데이터의 전처리에 의한 전리층 지연오차 추정시 전처리 과정의 히스토리를 담고 있는 전처리 플래그를 기록하여 제공함으로써, 기록된 전처리 플래그를 확인하여 실제 전리층 이상현상인지를 모니터링 할 수 있도록 하는 GPS 데이터 분석에 의한 플래그 데이터 제공 방법 및 시스템에 관한 것이다.
본 발명에 의하면, 각 지상국의 GPS 반송파데이터의 전처리에 의한 전리층 지연오차 추정시 전처리 과정의 히스토리를 담고 있는 전처리 플래그를 기록함으로써, 기록된 전처리 플래그를 이용하여 극심한 전리층 기울기 값을 갖는 데이터가 실제 전리층 이상현상인지 아니면 수신기 고장이나 자료처리오차로부터 산출된 것인지를 판단할 수 있는 효과가 있다.
또한, 전리층 이상현상으로 판단된 후보들 중 실제 전리층 이상현상이 아닌 후보들을 자동화하여 제거하는 오토 스크리닝(Auto Screening)의 과정을 최대한 자동화시킴으로써, 수동으로 전리층 이상현상의 유효성을 판단하는 과정에서 가중되는 부담을 완화시킬 수 있는 효과가 있다.-
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公开(公告)号：KR101433908B1
公开(公告)日：2014-08-27
申请号：KR1020130113559
申请日：2013-09-24
Applicant: 한국과학기술원
Inventor： 이지윤
Abstract: The present invention relates to a method of evaluating the quality of global navigation satellite system (GNSS) data and a system thereof and, more specifically, to a method of evaluating the quality of GNSS data capable of evaluating the quality of GNSS data in each ground station by providing comprehensive quality data such as the number of cycle slips in a carrier wave of GNSS data, number of outliers, number of short arcs, receiver noise, multi-path error amount of ionospheric layer delay errors of code and smoothed code, and ratio of measured data, and a system thereof. According to the present invention, by providing comprehensive quality data such as the number of cycle slips in a carrier wave of GNSS data, number of outliers, number of short arcs, receiver noise, multi-path error amount of ionospheric layer delay errors of code and smoothed code, and ratio of measured data, it is possible to evaluate the quality of GNSS data in each ground station.
Abstract translation: 本发明涉及一种评估全球导航卫星系统（GNSS）数据质量的方法及其系统，更具体地说，涉及一种评估能够评估每个地面GNSS数据质量的GNSS数据的方法 通过提供综合质量数据，例如GNSS数据的载波中的循环滑移数，异常值，短弧数，接收机噪声，代码和平滑码的电离层延迟误差的多径误差量，以及 测量数据的比率及其系统。 根据本发明，通过提供综合质量数据，例如GNSS数据的载波中的周期滑移数，异常值数，短弧数，接收机噪声，编码的电离层延迟误差的多径误差量 平滑的代码和测量数据的比例，可以评估每个地面站的GNSS数据的质量。
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公开(公告)号：KR1020130137929A
公开(公告)日：2013-12-18
申请号：KR1020120061631
申请日：2012-06-08
Applicant: 한국과학기술원
Abstract: The present invention relates to a call-taxi service providing method and a system thereof having safety and security functions and, more specifically, to a call-taxi providing method and a system thereof not only enabling a user to easily use a call-taxi service by using a smart phone application but also providing a safety function, in order to display own moving path in a protector terminal when using the call-taxi service, and a security function in order to easily retrieve belongings by having contact with a taxi driver even though a user leaves the belongings in a taxi. The present invention enables a user to be able to use a more convenient and useful call-taxi service not only by enabling an easy taxi selection by using the service directly between the user and a taxi driver with the terminal application of the user without a relay of a taxi operation company but also by providing the safety function in order to display own moving path in a protector terminal when using the call-taxi service and the security function in order to easily retrieve belongings by having contact with the taxi driver even though the user leaves the belongings in a taxi. [Reference numerals] (10) User terminal;(100) Call-taxi service system having safety and security functions;(20) Taxi driver terminal;(30) Protector terminal;(AA) Mobile communication network
Abstract translation: 本发明涉及一种具有安全和保密功能的呼叫 - 出租车服务提供方法及其系统，更具体地说，涉及一种呼叫 - 出租车提供方法及其系统，不仅使用户能够容易地使用呼叫 - 出租车服务 通过使用智能电话应用程序，还提供安全功能，以便在使用呼叫 - 出租车服务时在保护终端中显示自己的移动路径，以及安全功能，以便通过与出租车司机甚至连接来容易地检索物品 虽然用户将物品放在出租车中。 本发明使得用户能够使用更方便和有用的呼叫 - 出租车服务，不仅通过使用直接在用户和出租车司机之间的服务与使用者的终端应用而不需要继电器来实现容易的出租车选择 的出租车业务公司，而且通过提供安全功能，以便在使用呼叫 - 出租车服务和安全功能时在保护终端中显示自己的移动路径，以便通过与出租车司机接触来容易地检索物品，即使 用户将物品放在出租车内。 （附图标记）（10）用户终端;（100）具有安全和保密功能的呼叫 - 出租车服务系统;（20）出租车司机终端;（30）保护终端;（AA）移动通信网
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