CN113253201A - Data quality monitoring method and device for wide area multipoint positioning system and electronic equipment - Google Patents
Data quality monitoring method and device for wide area multipoint positioning system and electronic equipmentDownload PDFInfo
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Abstract
Description
Translated fromChinese技术领域technical field
本申请涉及机场监测技术领域，尤其涉及一种广域多点定位系统数据质量监控方法、装置及电子设备。The present application relates to the technical field of airport monitoring, and in particular, to a method, device and electronic device for monitoring data quality of a wide-area multi-point positioning system.
背景技术Background technique
多点定位系统是利用多个地面站接收监视目标发射的同一应答信号，通过计算各地面站接收的时间差实现监视目标定位的系统。多点定位系统作为未来的空管监视新技术，具有定位精度高、数据率高、可扩充性好、不受天气影响、无需改装现有飞机等优点，可以在全天候环境条件下大大提高监视的有效性和可靠性，是当前民航监视技术的主要发展方向，国外许多国家和地区都在积极推进该项技术的应用。The multi-point positioning system is a system that uses multiple ground stations to receive the same response signal transmitted by the monitoring target, and realizes the positioning of the monitoring target by calculating the time difference received by each ground station. As a new technology for air traffic control surveillance in the future, the multi-point positioning system has the advantages of high positioning accuracy, high data rate, good scalability, not affected by weather, and no need to modify existing aircraft. Effectiveness and reliability are the main development directions of current civil aviation surveillance technology, and many foreign countries and regions are actively promoting the application of this technology.
广域多点定位系统（wide area multilatereation systems）主要采用达到时间差定位技术，通过获取二次监视雷达应答机发射信号来确定区域、终端（进近）和机场管制空域内航空器位置和识别信息的一组设备。广域多点定位系统中，接收站之间分布远，接收站间的时间同步不能像场面监视系统中利用本地时钟、或参考应答进行同步，一般采用基于全球定位系统的授时接收机实现各站之间的时间同步。广域多点定位系统提供的数据更新率高、定位精度高，并具有识别能力。鉴于这些优点，目前空管自动化系统普遍引接广域多点定位系统监视数据进行航迹融合，但带来监视数据源数据质量监测的困难。广域多点定位监视源的异常数据输出均会导致后端系统出现融合航迹目标分裂、位置跳变，以及产生假目标，这些异常情况会严重影响管制员对航空器的实时指挥。Wide area multi-point positioning systems (wide area multilateration systems) mainly use the time difference positioning technology to determine the location and identification information of aircraft in the area, terminal (approach) and airport controlled airspace by acquiring the signal transmitted by the secondary surveillance radar transponder. group device. In the wide-area multi-point positioning system, the receiving stations are far away, and the time synchronization between the receiving stations cannot be synchronized with the local clock or the reference response in the scene surveillance system. Generally, the timing receiver based on the global positioning system is used to realize the synchronization of each station time synchronization between. The wide-area multi-point positioning system provides high data update rate, high positioning accuracy and recognition ability. In view of these advantages, the current air traffic control automation system generally leads to the monitoring data of the wide area multi-point positioning system for track fusion, but it brings difficulties in monitoring the data quality of the monitoring data source. The abnormal data output of the wide-area multi-point positioning monitoring source will lead to the split of the fusion track target, the position jump, and the generation of false targets in the back-end system. These abnormal conditions will seriously affect the controller's real-time command of the aircraft.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供一种广域多点定位系统数据质量监控方法、装置、电子设备及存储介质，以对广域多点定位系统输出数据的质量进行监控和评估，提升了广域多点定位监视数据在空管自动化系统的利用效率和运行稳定性，并协助技术维护人员及时发现广域多点定位系统内发生的异常情况。Embodiments of the present application provide a method, device, electronic device, and storage medium for monitoring data quality of a wide-area multipoint positioning system, so as to monitor and evaluate the quality of output data of the wide-area multipoint positioning system, and improve the wide-area multipoint positioning system. Monitor the utilization efficiency and operation stability of the data in the ATC automation system, and assist the technical maintenance personnel to detect abnormal situations in the wide-area multi-point positioning system in time.
一方面，本申请一实施例提供了一种广域多点定位系统数据质量监控方法，包括：On the one hand, an embodiment of the present application provides a method for monitoring data quality of a wide-area multipoint positioning system, including:
获取广域多点定位系统输出的工作状态报文、针对指定目标的目标报文和针对指定目标的ADS-B报告报文；其中，所述工作状态报文包括表征所述广域多点定位系统中各个设备的工作状态是否异常的工作状态信息，所述目标报文包括所述广域多点定位系统对所述指定目标进行定位获得的定位相关信息，所述ADS-B报告报文包括所述指定目标的GPS定位数据；Obtain the working status message, the target message for the specified target, and the ADS-B report message for the specified target output by the WAN multipoint positioning system; wherein, the working status message includes a message representing the wide area multipoint positioning The working status information of whether the working status of each device in the system is abnormal, the target message includes the positioning related information obtained by the WAN multipoint positioning system locating the specified target, and the ADS-B report message includes GPS positioning data of the specified target;
基于获取到的工作状态报文，确定衡量各个设备工作状态的关键指标是否正常；Based on the obtained working status message, determine whether the key indicators for measuring the working status of each device are normal;
基于获取到的目标报文，确定衡量系统定位准确度的关键指标是否正常；Based on the obtained target message, determine whether the key indicator for measuring the system positioning accuracy is normal;
基于获取到的ADS-B报告报文和目标报文，确定衡量系统输出的定位数据合理性的关键指标是否正常；Based on the obtained ADS-B report message and target message, determine whether the key indicators for measuring the rationality of the positioning data output by the system are normal;
基于各项关键指标是否正常的判断结果和各项关键指标分别对应的权重，确定所述广域多点定位系统对应的数据质量分值；Determine the data quality score corresponding to the wide-area multi-point positioning system based on the judgment result of whether each key index is normal and the corresponding weight of each key index;
若所述数据质量分值满足告警条件，则输出表示数据质量异常的告警提示信息。If the data quality score meets the alarm condition, output alarm prompt information indicating that the data quality is abnormal.
可选地，所述GPS定位数据包括：GPS位置、GPS定位精度和GPS定位误差，所述目标报文包括：所述广域多点定位系统确定出的所述指定目标的目标定位位置、位置精度和系统定位误差，所述基于获取到的ADS-B报告报文和目标报文，确定衡量系统输出的定位数据合理性的关键指标是否正常，包括：Optionally, the GPS positioning data includes: GPS position, GPS positioning accuracy, and GPS positioning error, and the target message includes: the target positioning position and position of the designated target determined by the wide-area multi-point positioning system Accuracy and system positioning error, based on the obtained ADS-B report message and target message, determine whether the key indicators for measuring the rationality of the positioning data output by the system are normal, including:
判断所述GPS位置和所述目标定位位置之间的差值是否超过定位差阈值，判断所述GPS定位精度和所述位置精度之间的差值是否超过精度差阈值，判断所述GPS定位误差和所述系统定位误差之间的差值是否超过定位误差阈值；Judging whether the difference between the GPS position and the target positioning position exceeds the positioning difference threshold, judging whether the difference between the GPS positioning accuracy and the position accuracy exceeds the accuracy difference threshold, and judging the GPS positioning error Whether the difference between the system positioning error and the positioning error exceeds the positioning error threshold;
基于获得的判断结果，确定衡量系统输出的定位数据合理性的关键指标是否正常。Based on the obtained judgment results, it is determined whether the key indicators for measuring the rationality of the positioning data output by the system are normal.
可选地，所述目标报文包括所述指定目标的目标定位位置和位置精度、参与定位的地面接收站的站点标识，衡量系统定位准确度的关键指标包括定位精度；Optionally, the target message includes the target positioning position and position accuracy of the specified target, the site identification of the ground receiving station participating in the positioning, and the key index for measuring the positioning accuracy of the system includes the positioning accuracy;
所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：Based on the obtained target message, determine whether the key indicators for measuring the system positioning accuracy are normal, including:
根据目标报文中的站点标识，获取参与定位的地面接收站的位置信息；According to the station identifier in the target message, obtain the location information of the ground receiving station participating in the positioning;
根据参与定位的地面接收站的位置信息和所述指定目标的目标定位位置，确定所述广域多点定位系统对所述指定目标进行定位的定位精度；According to the position information of the ground receiving station participating in the positioning and the target positioning position of the designated target, determine the positioning accuracy of the designated target by the wide-area multi-point positioning system;
若所述定位精度和所述位置精度不一致，则确定所述广域多点定位系统定位精度异常。If the positioning accuracy and the position accuracy are inconsistent, it is determined that the positioning accuracy of the wide-area multi-point positioning system is abnormal.
可选地，所述根据参与定位的地面接收站的位置信息和所述指定目标的目标定位位置，确定所述广域多点定位系统对所述指定目标进行定位的定位精度，包括：Optionally, determining the positioning accuracy of the designated target by the wide-area multi-point positioning system according to the position information of the ground receiving station participating in the positioning and the target positioning position of the designated target, including:
根据参与定位的地面接收站的位置信息和所述指定目标的目标定位位置，确定几何精度因子GDOP；Determine the geometric precision factor GDOP according to the position information of the ground receiving station participating in the positioning and the target positioning position of the designated target;
根据所述几何精度因子GDOP和伪距测量噪声，确定所述广域多点定位系统对所述指定目标进行定位的定位精度，其中，伪距测量噪声是根据广域多点定位系统的系统参数确定的。According to the geometric precision factor GDOP and the pseudo-range measurement noise, the positioning accuracy of the specified target by the wide-area multi-point positioning system is determined, wherein the pseudo-range measurement noise is based on the system parameters of the wide-area multi-point positioning system definite.
可选地，衡量系统定位准确度的关键指标包括目标报文更新率、目标报文识别率和系统处理延时中的至少一种；Optionally, the key indicators for measuring system positioning accuracy include at least one of target message update rate, target message recognition rate and system processing delay;
当衡量系统定位准确度的关键指标包括目标报文更新率时，所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：根据单位时长内广域多点定位系统输出的目标报文的数量，确定目标报文更新率，若目标报文更新率小于更新率阈值，则确定目标报文更新率异常，否则确定目标报文更新率正常；When the key indicators for measuring the system positioning accuracy include the target packet update rate, determining whether the key indicators for measuring the system positioning accuracy are normal based on the obtained target packets, including: The number of target packets output by the locating system is used to determine the target packet update rate. If the target packet update rate is less than the update rate threshold, it is determined that the target packet update rate is abnormal; otherwise, the target packet update rate is determined to be normal;
当衡量系统定位准确度的关键指标包括目标报文识别率时，所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：根据单位时长内广域多点定位系统输出的包含识别信息的目标报文的数量，确定目标报文识别率，若目标报文识别率小于识别率阈值，则确定目标报文识别率异常，否则确定目标报文识别率正常，其中，识别信息表征能够识别到指定目标；When the key indicators for measuring the system positioning accuracy include the target packet recognition rate, determining whether the key indicators for measuring the system positioning accuracy are normal based on the obtained target packets, including: The number of target packets containing identification information output by the locating system is used to determine the target packet recognition rate. If the target packet recognition rate is less than the recognition rate threshold, the target packet recognition rate is determined to be abnormal. Otherwise, the target packet recognition rate is determined to be normal. , wherein the identification information indicates that the specified target can be identified;
当衡量系统定位准确度的关键指标包括系统处理延时时，所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：When the key indicators for measuring the system positioning accuracy include the system processing delay, determining whether the key indicators for measuring the system positioning accuracy are normal based on the obtained target message, including:
根据所述指定目标的应答信号达到各地面接收站的时刻和目标报文的输出时刻之间的时间差，获得系统处理延时，若系统处理延时大于延时阈值，则确定系统处理延时异常，否则确定系统处理延时正常。According to the time difference between the time when the response signal of the designated target reaches each ground receiving station and the output time of the target message, the system processing delay is obtained. If the system processing delay is greater than the delay threshold, it is determined that the system processing delay is abnormal , otherwise it is determined that the system processing delay is normal.
可选地，衡量系统定位准确度的关键指标包括目标报文中的指定数据是否发生跳变，其中指定数据包括目标定位位置和识别号中的至少一项，识别号是为各目标分配的航班标识；Optionally, the key indicator for measuring the accuracy of the system positioning includes whether the specified data in the target message jumps, wherein the specified data includes at least one of the target positioning position and the identification number, and the identification number is the flight assigned to each target. identification;
当指定数据包括目标定位位置时，所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：When the specified data includes the target positioning position, determining whether the key indicators for measuring the positioning accuracy of the system are normal based on the obtained target message, including:
根据已获得的指定目标的目标定位位置，预测指定目标未来的运动轨迹，基于预测的运动轨迹判断后续接收到的目标报文中的目标定位位置是否发生跳变，若发生跳变，则确定目标定位位置异常；According to the obtained target positioning position of the specified target, predict the future motion trajectory of the specified target, and judge whether the target positioning position in the subsequently received target message jumps based on the predicted motion trajectory. If a jump occurs, determine the target. The positioning position is abnormal;
当指定数据包括识别号时，所述基于获取到的目标报文，确定衡量系统定位准确度的各项关键指标是否正常，包括：When the specified data includes an identification number, determining whether various key indicators for measuring the positioning accuracy of the system are normal based on the obtained target message, including:
检测针对指定目标的目标报文中的识别号是否发生变化，若发生变化，则确定识别号异常。Detect whether the identification number in the target message for the specified target changes, and if there is a change, determine that the identification number is abnormal.
可选地，所述基于各项关键指标是否正常的判断结果和各项关键指标分别对应的权重，确定所述广域多点定位系统对应的数据质量分值，包括：Optionally, determining the data quality score corresponding to the wide-area multi-point positioning system based on the judgment result of whether each key indicator is normal and the weight corresponding to each key indicator, including:
基于如下公式确定所述广域多点定位系统对应的数据质量分值
其中，
所述告警条件包括：数据质量分值
可选地，所述工作状态报文为ASTERIX CAT19报文，所述目标报文为ASTERIXCAT20 报文，所述ADS-B报告报文为ASTERIX CAT21报文。Optionally, the working status message is an ASTERIX CAT19 message, the target message is an ASTERIX CAT20 message, and the ADS-B report message is an ASTERIX CAT21 message.
一方面，本申请一实施例提供了一种广域多点定位系统数据质量监控装置，包括：On the one hand, an embodiment of the present application provides a device for monitoring data quality of a wide-area multipoint positioning system, including:
报文获取模块，用于获取广域多点定位系统输出的工作状态报文、针对指定目标的目标报文和针对指定目标的ADS-B报告报文；其中，所述工作状态报文包括表征所述广域多点定位系统中各个设备的工作状态是否异常的工作状态信息，所述目标报文包括所述广域多点定位系统对所述指定目标进行定位获得的定位相关信息，所述ADS-B报告报文包括所述指定目标的GPS定位数据；The message acquisition module is used to obtain the working status message output by the wide area multi-point positioning system, the target message for the specified target and the ADS-B report message for the specified target; wherein, the working status message includes a The working state information of whether the working state of each device in the wide area multipoint positioning system is abnormal, the target message includes the positioning related information obtained by the wide area multipoint positioning system locating the designated target, the The ADS-B report message includes the GPS positioning data of the specified target;
工作状态解析模块，用于基于获取到的工作状态报文，确定衡量各个设备工作状态的关键指标是否正常；The working status analysis module is used to determine whether the key indicators for measuring the working status of each device are normal based on the obtained working status message;
第一监视数据分析模块，用于基于获取到的目标报文，确定衡量系统定位准确度的关键指标是否正常；The first monitoring data analysis module is used to determine whether the key indicator for measuring the positioning accuracy of the system is normal based on the obtained target message;
第二监视数据分析模块，用于基于获取到的ADS-B报告报文和目标报文，确定衡量系统输出的定位数据合理性的关键指标是否正常；The second monitoring data analysis module is used to determine whether the key indicator for measuring the rationality of the positioning data output by the system is normal based on the obtained ADS-B report message and target message;
数据质量分析模块，用于基于各项关键指标是否正常的判断结果和各项关键指标分别对应的权重，确定所述广域多点定位系统对应的数据质量分值；A data quality analysis module, configured to determine the data quality score corresponding to the wide-area multi-point positioning system based on the judgment result of whether each key index is normal and the corresponding weight of each key index;
告警模块，用于若所述数据质量分值满足告警条件，则输出表示数据质量异常的告警提示信息。The alarm module is configured to output alarm prompt information indicating that the data quality is abnormal if the data quality score satisfies the alarm condition.
一方面，本申请一实施例提供了一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其中，处理器执行计算机程序时实现上述任一种方法的步骤。On the one hand, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the processor implements any of the above methods when executing the computer program A step of.
一方面，本申请一实施例提供了一种计算机可读存储介质，其上存储有计算机程序指令，该计算机程序指令被处理器执行时实现上述任一种方法的步骤。In one aspect, an embodiment of the present application provides a computer-readable storage medium on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the steps of any of the foregoing methods are implemented.
一方面，本申请一实施例提供了一种计算机程序产品或计算机程序，该计算机程序产品或计算机程序包括计算机指令，该计算机指令存储在计算机可读存储介质中。计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得该计算机设备执行上述任一种TCP传输性能的控制的各种可选实现方式中提供的方法。In one aspect, an embodiment of the present application provides a computer program product or computer program, where the computer program product or computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs any of the above-mentioned methods provided in various optional implementations of TCP transmission performance control.
本申请实施例提供的广域多点定位系统数据质量监控方法、装置、电子设备及存储介质，对广域多点定位系统输出的报文中的关键数据项进行实时分析，以对广域多点定位系统输出数据的质量进行监控和评估，提升了广域多点定位监视数据在空管自动化系统的利用效率和运行稳定性，并协助技术维护人员及时发现广域多点定位系统内发生的异常情况，为推动广域多点定位监视数据广泛应用提供了一种可行、有效的监测方式，在空管单位或地方塔台具有一定的应用价值。The method, device, electronic device, and storage medium for monitoring data quality of a wide-area multipoint positioning system provided by the embodiments of the present application perform real-time analysis on key data items in a message output by the wide-area multipoint positioning system, so as to analyze the key data items in a message output by the wide-area multipoint positioning system in real time. The quality of the output data of the point positioning system is monitored and evaluated, which improves the utilization efficiency and operation stability of the wide-area multi-point positioning monitoring data in the ATC automation system, and assists the technical maintenance personnel to timely detect the occurrence of the wide-area multi-point positioning system. Abnormal conditions provide a feasible and effective monitoring method for promoting the wide application of wide-area multi-point positioning monitoring data, and have certain application value in air traffic control units or local towers.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例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一些实施例，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，还可以根据这些附图获得其它的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.
图1为本申请实施例提供的广域多点定位系统数据质量监控方法的应用场景示意图；1 is a schematic diagram of an application scenario of a method for monitoring data quality in a wide area multipoint positioning system provided by an embodiment of the present application;
图2为本申请实施例提供的广域多点定位系统数据质量监控方法的流程示意图；2 is a schematic flowchart of a method for monitoring data quality of a wide-area multipoint positioning system according to an embodiment of the present application;
图3为本申请实施例提供的确定定位精度是否正常的流程示意图；3 is a schematic flowchart of determining whether the positioning accuracy is normal according to an embodiment of the present application;
图4为本申请实施例提供的广域多点定位系统数据质量监控装置的结构示意图；4 is a schematic structural diagram of an apparatus for monitoring data quality of a wide-area multipoint positioning system according to an embodiment of the present application;
图5为本申请实施例提供的电子设备的结构示意图。FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
具体实施方式Detailed ways
下面结合附图对本发明实施例进行详细描述。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合；并且，基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict; and, based on the embodiments in the present disclosure, those of ordinary skill in the art can obtain the results obtained without creative work. All other embodiments fall within the protection scope of the present disclosure.
需要说明的是，下文描述在所附权利要求书的范围内的实施例的各种方面。应显而易见，本文中所描述的方面可体现于广泛多种形式中，且本文中所描述的任何特定结构及/或功能仅为说明性的。基于本公开，所属领域的技术人员应了解，本文中所描述的一个方面可与任何其它方面独立地实施，且可以各种方式组合这些方面中的两者或两者以上。举例来说，可使用本文中所阐述的任何数目个方面来实施设备及/或实践方法。另外，可使用除了本文中所阐述的方面中的一或多者之外的其它结构及/或功能性实施此设备及/或实践此方法。It is noted that various aspects of embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is illustrative only. Based on this disclosure, those skilled in the art should appreciate that an aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method may be practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
附图中的任何元素数量均用于示例而非限制，以及任何命名都仅用于区分，而不具有任何限制含义。Any number of elements in the drawings is for illustration and not limitation, and any designation is for distinction only and does not have any limiting meaning.
参考图1，其为本申请实施例提供的广域多点定位系统的应用场景示意图。该应用场景中的广域多点定位系统包括多个地面接收站、询问发射站、中心处理服务器和监控子系统等，其中，多个地面接收站分别设置在管制空域内地面上的不同位置。监控子系统可向广域多点定位系统内的各个设备（包括地面接收站、询问发射站、中心处理服务器等设备）发送各类控制指令，以方便工作人员对广域多点定位系统进行控制，例如，可切换广域多点定位系统的运行模式为主用或者备用，对广域多点定位系统的各个设备下发重启操作指令，获取广域多点定位系统中各个被监控对象（各个设备）的硬件和软件状态等。中心处理服务器控制询问发射站向管制空域内的目标航空器发送指定频率的询问信号，目标航空器的机载应答机收到询问信号后发出应答信号，此外目标航空器自动地从相关机载设备获取参数并向地面接收站广播ADS-B（Automatic Dependent Surveillance - Broadcast，广播式自动相关监视）报告，该ADS-B报告包括目标航空器的位置、高度、速度、航向、识别号等信息，以供管制员对飞机状态进行监控。各地面接收站基于全球定位系统实现各站之间的时间同步，各地面接收站接收机载应答机反馈的应答信号和ADS-B报告，对应答信号进行解析并确定出信号接收时间，反馈给中心处理服务器。中心处理服务器基于各地面接收站接收应答信号的时间差，对目标航空器进行的精确测量定位，并输出针对该目标航空器的目标报文，目标报文包括广域多点定位系统对指定目标进行定位获得的定位相关信息。此外，中心处理服务器还会输出针对广域多点定位系统的工作状态报文和针对目标航空器的ADS-B报告报文，该工作状态报文包括表征广域多点定位系统中各个设备的工作状态是否异常的工作状态信息，以对广域多点定位系统的状态进行监控，该ADS-B报告报文包括基于ADS-B报告获得的目标航空器的GPS定位数据。广域多点定位系统和监控子系统之间可通过简单网络管理协议（SNMP）进行通信。Referring to FIG. 1 , which is a schematic diagram of an application scenario of a wide-area multipoint positioning system provided by an embodiment of the present application. The wide-area multi-point positioning system in this application scenario includes multiple ground receiving stations, query transmitting stations, central processing servers, monitoring subsystems, etc., wherein the multiple ground receiving stations are respectively set at different positions on the ground in the controlled airspace. The monitoring subsystem can send various control commands to various devices in the WAMP (including ground receiving stations, inquiry transmitting stations, central processing servers, etc.), so as to facilitate the staff to control the WAMP system. , for example, the operating mode of the WAN multipoint positioning system can be switched to be the main or backup, and the restart operation instructions are issued to each device of the WAMP positioning system to obtain each monitored object in the WAN multipoint positioning system (each device) hardware and software status, etc. The central processing server controls the interrogation transmitting station to send the interrogation signal of the specified frequency to the target aircraft in the controlled airspace, and the airborne transponder of the target aircraft sends out the reply signal after receiving the interrogation signal. In addition, the target aircraft automatically obtains parameters from the relevant airborne equipment and Broadcast the ADS-B (Automatic Dependent Surveillance - Broadcast) report to the ground receiving station, the ADS-B report includes the target aircraft's position, altitude, speed, heading, identification number, etc. Aircraft status is monitored. Each ground receiving station realizes the time synchronization between the stations based on the global positioning system, and each ground receiving station receives the response signal and ADS-B report fed back by the onboard transponder, analyzes the response signal, determines the signal receiving time, and feeds it back to Central processing server. The central processing server accurately measures and locates the target aircraft based on the time difference between the response signals received by each ground receiving station, and outputs the target message for the target aircraft. The target message includes the wide area multi-point positioning system to locate the designated target location-related information. In addition, the central processing server will also output the working status message for the WAN multi-point positioning system and the ADS-B report message for the target aircraft. The working status information of whether the status is abnormal, so as to monitor the status of the wide area multi-point positioning system. The ADS-B report message includes the GPS positioning data of the target aircraft obtained based on the ADS-B report. Simple Network Management Protocol (SNMP) can be used to communicate between the WAN and monitoring subsystems.
其中，中心处理服务器可以是独立的物理服务器，也可以是多个物理服务器构成的服务器集群或者分布式系统，还可以是提供云服务、云数据库、云计算、云函数、云存储、网络服务、云通信、中间件服务、域名服务、安全服务、CDN、以及大数据和人工智能平台等基础云计算服务的云服务器。The central processing server may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or may provide cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, Cloud servers for basic cloud computing services such as cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.
当然，本申请实施例提供的方法并不限用于图1所示的应用场景中，还可以用于其它可能的应用场景，本申请实施例并不进行限制。对于图1所示的应用场景的各个设备所能实现的功能将在后续的方法实施例中一并进行描述，在此先不过多赘述。Of course, the method provided by the embodiment of the present application is not limited to be used in the application scenario shown in FIG. 1 , and can also be used in other possible application scenarios, which is not limited by the embodiment of the present application. The functions that can be implemented by each device in the application scenario shown in FIG. 1 will be described together in the subsequent method embodiments, which will not be repeated here.
为进一步说明本申请实施例提供的技术方案，下面结合附图以及具体实施方式对此进行详细的说明。虽然本申请实施例提供了如下述实施例或附图所示的方法操作步骤，但基于常规或者无需创造性的劳动在所述方法中可以包括更多或者更少的操作步骤。在逻辑上不存在必要因果关系的步骤中，这些步骤的执行顺序不限于本申请实施例提供的执行顺序。In order to further illustrate the technical solutions provided by the embodiments of the present application, the following detailed descriptions are given in conjunction with the accompanying drawings and specific embodiments. Although the embodiments of the present application provide method operation steps as shown in the following embodiments or the accompanying drawings, more or less operation steps may be included in the method based on routine or without creative work. In steps that logically do not have a necessary causal relationship, the execution order of these steps is not limited to the execution order provided by the embodiments of the present application.
下面结合图1所示的应用场景，对本申请实施例提供的技术方案进行说明。The technical solutions provided by the embodiments of the present application will be described below with reference to the application scenario shown in FIG. 1 .
参考图2，本申请实施例提供一种广域多点定位系统数据质量监控方法，包括以下步骤：Referring to FIG. 2 , an embodiment of the present application provides a method for monitoring data quality of a wide-area multipoint positioning system, including the following steps:
S201、获取广域多点定位系统输出的工作状态报文、针对指定目标的目标报文和针对指定目标的ADS-B报告报文。S201. Acquire a working status message, a target message for a specified target, and an ADS-B report message for the specified target output by a wide-area multipoint positioning system.
其中，工作状态报文包括表征广域多点定位系统中各个设备的工作状态是否异常的工作状态信息，目标报文包括广域多点定位系统对指定目标进行定位获得的定位相关信息，ADS-B报告报文包括指定目标的GPS定位数据。指定目标可以是附近空域内的任一航空器。Among them, the working status message includes the working status information that indicates whether the working status of each device in the wide area multipoint positioning system is abnormal, the target message includes the positioning related information obtained by the wide area multipoint positioning system locating the specified target, ADS- The B report message includes the GPS positioning data of the specified target. The designated target can be any aircraft in nearby airspace.
具体实施时，广域多点定位系统可基于ASTERIX协议生成各类报文，例如，针对该目标飞机的目标报文为ASTERIX CAT20 报文，工作状态报文为ASTERIX CAT19报文，针对指定目标的ADS-B报告报文为ASTERIX CAT21报文。ASTERIX（All purpose Structured Euro-control Radar Information exchange format）基于欧洲航空安全组织为雷达数据传输和交换定义的一种结构化协议，该协议定义了监视数据编码的框架结构，具有格式统一、易于扩展等优点，可支持不同监视设备之间按照约定的格式进行信息交换。目前，ASTERIX协议已经成为了国际标准，涵盖了一次场监雷达、二次雷达、多点定位系统等监视设备，以及空管自动化、场监融汇系统、数据中心等相关设备。ASTERIX CAT20 报文和ASTERIX CAT19报文中包含的内容可参考ASTERIX协议的规定，一般 ASTERIX CAT20报文应至少包含以下数据项：目标报告描述、目标定位位置、识别码（3/A模式代码）、测量高度、日时间、航迹号、航迹状态、航空器地址码（Target Address）、位置精度（Position Accuracy）、系统定位误差等；ASTERIX CAT19报文应至少包含以下数据项：报文类型、数据源标识、日时间、系统状态等。ASTERIX CAT21报文至少包含以下数据：日时间、航空器地址码、GPS定位数据，其中，GPS定位数据包括GPS位置、GPS定位精度和GPS定位误差等。During specific implementation, the wide area multipoint positioning system can generate various kinds of messages based on the ASTERIX protocol. For example, the target message for the target aircraft is ASTERIX CAT20 message, the working status message is ASTERIX CAT19 message, and the ADS-B report messages are ASTERIX CAT21 messages. ASTERIX (All purpose Structured Euro-control Radar Information exchange format) is based on a structured protocol defined by the European Aviation Safety Organization for the transmission and exchange of radar data. The advantage is that it can support the exchange of information between different monitoring devices according to the agreed format. At present, the ASTERIX protocol has become an international standard, covering surveillance equipment such as primary field surveillance radar, secondary radar, and multi-point positioning system, as well as related equipment such as air traffic control automation, field surveillance fusion system, and data center. The content contained in the ASTERIX CAT20 message and the ASTERIX CAT19 message can refer to the provisions of the ASTERIX protocol. Generally, the ASTERIX CAT20 message should contain at least the following data items: target report description, target positioning position, identification code (3/A mode code), Measurement altitude, time of day, track number, track status, aircraft address code (Target Address), position accuracy (Position Accuracy), system positioning error, etc.; ASTERIX CAT19 message should contain at least the following data items: message type, data Source ID, time of day, system status, etc. The ASTERIX CAT21 message contains at least the following data: time of day, aircraft address code, and GPS positioning data, where the GPS positioning data includes GPS position, GPS positioning accuracy, and GPS positioning error.
S202、基于获取到的工作状态报文，确定衡量各个设备工作状态的关键指标是否正常。S202. Based on the obtained working status message, determine whether the key indicators for measuring the working status of each device are normal.
具体地，工作状态报文包括但不限于：整个系统的工作状态、中心处理服务器工作状态、地面接收站工作状态、询问发射站工作状态等。衡量各个设备工作状态的关键指标包括以下至少一项：系统工作状态指标、中心处理服务器工作状态指标、地面接收站工作状态指标、询问发射站工作状态指标。Specifically, the working status message includes, but is not limited to: the working status of the entire system, the working status of the central processing server, the working status of the ground receiving station, the working status of the inquiry transmitting station, and the like. The key indicators for measuring the working state of each device include at least one of the following: system working state index, central processing server working state index, ground receiving station working state index, and inquiry transmitting station working state index.
S203、基于获取到的目标报文，确定衡量系统定位准确度的关键指标是否正常。S203. Based on the obtained target message, determine whether the key indicator for measuring the positioning accuracy of the system is normal.
具体地，针对指定目标的目标报文包括但不限于：目标定位位置、识别码、航空器地址码、位置精度、参与定位的地面接收站的站点标识等。衡量系统定位准确度的关键指标包括以下至少一项：定位精度、目标报文更新率、目标报文识别率、系统处理延时、目标报文中的指定数据是否发生跳变等，基于这些关键指标可衡量广域多点定位系统的定位准确度。Specifically, the target message for the specified target includes, but is not limited to: target positioning position, identification code, aircraft address code, position accuracy, site identification of the ground receiving station participating in the positioning, and the like. The key indicators for measuring system positioning accuracy include at least one of the following: positioning accuracy, target packet update rate, target packet recognition rate, system processing delay, whether the specified data in the target packet has jumped, etc. The indicator can measure the positioning accuracy of the wide-area multipoint positioning system.
S204、基于获取到的ADS-B报告报文和目标报文，确定衡量系统输出的定位数据合理性的关键指标是否正常。S204. Based on the acquired ADS-B report message and the target message, determine whether the key indicator for measuring the rationality of the positioning data output by the system is normal.
具体实施时，可通过比对ADS-B报告报文中的GPS定位数据和目标报文中的定位数据，确定衡量系统输出的定位数据合理性的关键指标是否正常。基于此，步骤S204具体包括：从ADS-B报告报文中获取GPS位置、GPS定位精度和GPS定位误差，从目标报文中获取目标定位位置、位置精度和系统定位误差；判断GPS位置和目标定位位置之间的差值是否超过定位差阈值，判断GPS定位精度和位置精度之间的差值是否超过精度差阈值，判断GPS定位误差和系统定位误差之间的差值是否超过定位误差阈值；基于获得的判断结果，确定衡量系统输出的定位数据合理性的关键指标是否正常。During specific implementation, it can be determined whether the key indicator for measuring the rationality of the positioning data output by the system is normal by comparing the GPS positioning data in the ADS-B report message with the positioning data in the target message. Based on this, step S204 specifically includes: obtaining the GPS position, GPS positioning accuracy and GPS positioning error from the ADS-B report message, obtaining the target positioning position, position accuracy and system positioning error from the target message; judging the GPS position and the target Whether the difference between the positioning positions exceeds the positioning difference threshold, determine whether the difference between the GPS positioning accuracy and the position accuracy exceeds the accuracy difference threshold, and determine whether the difference between the GPS positioning error and the system positioning error exceeds the positioning error threshold; Based on the obtained judgment results, it is determined whether the key indicators for measuring the rationality of the positioning data output by the system are normal.
在一种可能的实施方式中，衡量系统输出的定位数据合理性的关键指标可以是一个指标，记为定位数据合理性指标。 具体地，若上述三个指标（定位位置、定位精度和定位误差）中至少N个指标超过对应的阈值，则确定广域多点定位系统输出的定位数据不正常，即确定定位数据合理性指标不正常，否则确定定位数据合理性指标正常。其中N的取值可以是1、2或3，具体取值可根据实际需求确定。例如，当N=3时，若GPS位置和目标定位位置之间的差值超过定位差阈值，且GPS定位精度和位置精度之间的差值超过精度差阈值，且GPS定位误差和系统定位误差之间的差值超过定位误差阈值，则确定广域多点定位系统输出的定位数据不正常，否则确定广域多点定位系统输出的定位数据正常；当N=1时，若GPS位置和目标定位位置之间的差值超过定位差阈值，或者GPS定位精度和位置精度之间的差值超过精度差阈值，或者GPS定位误差和系统定位误差之间的差值超过定位误差阈值，则确定广域多点定位系统输出的定位数据不正常，否则确定广域多点定位系统输出的定位数据正常。In a possible implementation manner, the key index for measuring the rationality of the positioning data output by the system may be an index, which is recorded as the index of the rationality of the positioning data. Specifically, if at least N of the above three indicators (positioning position, positioning accuracy, and positioning error) exceed the corresponding thresholds, it is determined that the positioning data output by the wide-area multi-point positioning system is abnormal, that is, the rationality index of the positioning data is determined. If it is not normal, otherwise it is determined that the rationality index of the positioning data is normal. The value of N can be 1, 2 or 3, and the specific value can be determined according to actual requirements. For example, when N=3, if the difference between the GPS position and the target positioning position exceeds the positioning difference threshold, and the difference between the GPS positioning accuracy and the position accuracy exceeds the accuracy difference threshold, and the GPS positioning error and the system positioning error If the difference between them exceeds the positioning error threshold, it is determined that the positioning data output by the wide-area multipoint positioning system is abnormal; otherwise, the positioning data output by the wide-area multipoint positioning system is determined to be normal; when N=1, if the GPS position and the target The difference between the positioning positions exceeds the positioning difference threshold, or the difference between the GPS positioning accuracy and the position accuracy exceeds the accuracy difference threshold, or the difference between the GPS positioning error and the system positioning error exceeds the positioning error threshold. The positioning data output by the domain multipoint positioning system is abnormal, otherwise it is determined that the positioning data output by the wide area multipoint positioning system is normal.
在另一种可能的实施方式中，衡量系统输出的定位数据合理性的关键指标可以是多个指标，例如：定位位置合理性指标、定位精度合理性指标和定位误差合理性指标。若GPS位置和目标定位位置之间的差值超过定位差阈值，则确定定位位置合理性指标不正常，否则确定定位位置合理性指标正常；若GPS定位精度和位置精度之间的差值超过精度差阈值，则确定定位精度合理性指标不正常，否则确定定位精度合理性指标正常；若GPS定位误差和系统定位误差之间的差值超过定位误差阈值，则确定定位误差合理性指标不正常，否则确定定位误差合理性指标正常。In another possible implementation, the key indicators for measuring the rationality of the positioning data output by the system may be multiple indicators, for example: the rationality index of positioning position, the rationality index of positioning accuracy, and the rationality index of positioning error. If the difference between the GPS position and the target positioning position exceeds the positioning difference threshold, it is determined that the positioning position rationality index is abnormal; otherwise, the positioning position rationality index is determined to be normal; if the difference between the GPS positioning accuracy and the position accuracy exceeds the accuracy If the difference between the GPS positioning error and the system positioning error exceeds the positioning error threshold, it is determined that the positioning accuracy rationality index is abnormal, otherwise, the positioning accuracy rationality index is determined to be normal; if the difference between the GPS positioning error and the system positioning error exceeds the positioning error threshold, it is determined that the positioning error rationality index is abnormal. Otherwise, it is determined that the rationality index of the positioning error is normal.
S205、基于各项关键指标是否正常的判断结果和各项关键指标分别对应的权重，确定广域多点定位系统对应的数据质量分值。S205. Determine the data quality score corresponding to the wide-area multi-point positioning system based on the judgment result of whether each key index is normal and the respective weights corresponding to each key index.
具体地，可基于如下公式确定广域多点定位系统对应的数据质量分值
其中，
当然，基于上述公式，也可以对
S206、若数据质量分值满足告警条件，则输出表示数据质量异常的告警提示信息。S206. If the data quality score meets the alarm condition, output alarm prompt information indicating that the data quality is abnormal.
如果采用
具体实施时，输出的告警提示信息可包括异常的关键指标，以协助技术维护人员准确定位到广域多点定位系统内发生异常的设备以及异常产生的原因。During specific implementation, the output alarm prompt information may include abnormal key indicators, so as to assist the technical maintenance personnel to accurately locate the abnormal equipment in the wide area multipoint positioning system and the cause of the abnormality.
本申请实施例的广域多点定位系统数据质量监控方法，对广域多点定位系统输出的报文中的关键数据项进行实时分析，以对广域多点定位系统输出数据的质量进行监控和评估，提升了广域多点定位监视数据在空管自动化系统的利用效率和运行稳定性，并协助技术维护人员及时发现广域多点定位系统内发生的异常情况，为推动广域多点定位监视数据广泛应用提供了一种可行、有效的监测方式，在空管单位或地方塔台具有一定的应用价值。The method for monitoring the data quality of a wide-area multipoint positioning system according to an embodiment of the present application performs real-time analysis on key data items in a message output by the wide-area multipoint positioning system, so as to monitor the quality of the data output by the wide-area multipoint positioning system and evaluation, improve the utilization efficiency and operation stability of the wide-area multi-point positioning monitoring data in the air traffic control automation system, and assist the technical maintenance personnel to detect abnormal situations in the wide-area multi-point positioning system in time, in order to promote the wide-area multi-point positioning system The wide application of positioning monitoring data provides a feasible and effective monitoring method, which has certain application value in air traffic control units or local towers.
下面介绍确定衡量系统定位准确度的各关键指标是否正常的具体方法。The following describes specific methods for determining whether the key indicators for measuring the positioning accuracy of the system are normal.
参考图3，可通过如下方法确定定位精度是否正常：Referring to Figure 3, the following methods can be used to determine whether the positioning accuracy is normal:
S301、根据目标报文中的站点标识，获取参与定位的地面接收站的位置信息。S301. Acquire location information of a ground receiving station participating in positioning according to the station identifier in the target message.
其中，每个地面接收站对应唯一的站点标识。每一次定位时，全部或部分地面接收站参与定位计算，中心处理服务器会记录在参与定位的地面接收站的站点标识，并添加到对应的目标报文中。完成针对一个目标的一次定位后，中心处理服务器就会输出一个对应的目标报文。Wherein, each ground receiving station corresponds to a unique station identifier. During each positioning, all or part of the ground receiving stations participate in the positioning calculation, and the central processing server will record the site identification of the ground receiving stations participating in the positioning and add it to the corresponding target message. After completing a positioning for a target, the central processing server will output a corresponding target message.
可预先存储各地面接收站的站点标识和位置信息，即可根据目标报文中的站点标识，获取获取参与定位的地面接收站的位置信息。The site identification and location information of each ground receiving station can be stored in advance, and the location information of the ground receiving station participating in the positioning can be obtained according to the site identification in the target message.
S302、根据参与定位的地面接收站的位置信息和指定目标的目标定位位置，确定广域多点定位系统对指定目标进行定位的定位精度。S302 , according to the position information of the ground receiving station participating in the positioning and the target positioning position of the designated target, determine the positioning accuracy of the designated target positioned by the wide-area multi-point positioning system.
其中，目标定位位置是广域多点定位系统基于参与定位的地面接收站的应答信号计算出的指定目标的实时位置坐标。定位精度用于衡量广域多点定位系统给出的目标定位位置的精准度。The target positioning position is the real-time position coordinates of the designated target calculated by the wide-area multi-point positioning system based on the response signal of the ground receiving station participating in the positioning. The positioning accuracy is used to measure the accuracy of the target positioning position given by the wide-area multi-point positioning system.
具体实施时，步骤S302具体包括：根据参与定位的地面接收站的位置信息和指定目标的目标定位位置，确定几何精度因子GDOP；根据几何精度因子GDOP和伪距测量噪声，确定广域多点定位系统对指定目标进行定位的定位精度。During specific implementation, step S302 specifically includes: determining the geometric precision factor GDOP according to the position information of the ground receiving station participating in the positioning and the target positioning position of the designated target; determining the wide area multi-point positioning according to the geometric precision factor GDOP and the pseudorange measurement noise The positioning accuracy of the system to locate the specified target.
其中，伪距测量噪声是根据广域多点定位系统的系统参数确定的，具体地，伪距测量噪声一般由地面接收站的硬件性能和广域多点定位系统的同步精准程度等因素决定。GDOP由各个参与定位的地面接收站相对指定目标的目标定位位置的拓扑结构决定，计算GDOP的方法为现有技术，不再赘述。具体地，可通过如下公式确定定位精度
S303、若定位精度和位置精度不一致，则确定广域多点定位系统定位精度异常。S303 , if the positioning accuracy and the position accuracy are inconsistent, it is determined that the positioning accuracy of the wide-area multi-point positioning system is abnormal.
若通过步骤S302计算得到的定位精度和目标报文中的位置精度不一致，则确定广域多点定位系统定位精度异常；若通过步骤S302计算得到的定位精度和目标报文中的位置精度一致，则确定广域多点定位系统定位精度正常。If the positioning accuracy calculated in step S302 is inconsistent with the position accuracy in the target message, it is determined that the positioning accuracy of the wide-area multipoint positioning system is abnormal; if the positioning accuracy calculated in step S302 is consistent with the position accuracy in the target message, Then it is determined that the positioning accuracy of the wide area multipoint positioning system is normal.
在对指定目标进行定位的过程中，广域多点定位系统间隔很短时间就会确定出指定目标的实时位置，保证定位实时性和准确性。为此，通过目标报文更新率这一指标来衡量是否对指定目标进行了实时定位，这一指标也是衡量系统数据质量的关键指标。In the process of locating the specified target, the wide-area multi-point positioning system will determine the real-time position of the specified target at a short interval to ensure the real-time and accuracy of the positioning. To this end, the target message update rate is used to measure whether the specified target is located in real time, which is also a key indicator to measure the data quality of the system.
具体地，可通过如下方法确定目标报文更新率是否正常：根据单位时长内广域多点定位系统输出的目标报文的数量，确定目标报文更新率，若目标报文更新率小于更新率阈值，则确定目标报文更新率异常，否则确定目标报文更新率正常。其中，更新率阈值可根据广域多点定位系统设定的两次定位的间隔时间确定。Specifically, the following method can be used to determine whether the target message update rate is normal: according to the number of target messages output by the WAN multipoint positioning system within a unit time, determine the target message update rate, if the target message update rate is less than the update rate If the threshold is set, the update rate of the target packet is determined to be abnormal; otherwise, the update rate of the target packet is determined to be normal. The update rate threshold may be determined according to the interval time between two positionings set by the wide-area multipoint positioning system.
广域多点定位系统发送的目标报文中包括表征能够识别到指定目标的识别信息，例如ASTERIX CAT20 报文中的Target Identification和Mode-3/A Code in OctalRepresentation即为识别信息，如果目标报文中包含识别信息，则表明该目标报文具有识别能力，即可以系统成功定位到指定目标，否则表明系统无法定位到指定目标。The target message sent by the WAN multipoint positioning system includes identification information that can identify the specified target. For example, Target Identification and Mode-3/A Code in OctalRepresentation in the ASTERIX CAT20 message are the identification information. If the target message If it contains identification information, it indicates that the target message has the ability to identify, that is, the system can successfully locate the specified target, otherwise it indicates that the system cannot locate the specified target.
基于此，可根据单位时长内广域多点定位系统输出的包含识别信息的目标报文的数量，确定目标报文识别率，若目标报文识别率小于识别率阈值，则确定目标报文识别率异常，否则确定目标报文识别率正常。其中，识别率阈值可根据实际应用需求设定。通过目标报文识别率，衡量广域多点定位系统识别指定目标的能力。Based on this, the target packet recognition rate can be determined according to the number of target packets containing identification information output by the WAN multipoint positioning system within a unit time. If the target packet recognition rate is less than the recognition rate threshold, the target packet recognition rate is determined If the rate is abnormal, otherwise it is determined that the target packet recognition rate is normal. Among them, the recognition rate threshold can be set according to actual application requirements. Through the target packet recognition rate, the ability of the WAN multipoint positioning system to identify the specified target is measured.
广域多点定位系统进行每一次定位时，广域多点定位系统都需要耗费一定时间进行处理，如果处理时间较长，则可能是系统的硬件或软件发生问题。为此，可计算每一次定位时系统耗费的时间，即系统处理延时，系统处理延时越小，则定位精准度越高、系统性能越好，若系统处理延时过大，表明系统发生异常，且定位精准度会受影响。When the wide area multipoint positioning system performs each positioning, the wide area multipoint positioning system needs to spend a certain amount of time to process. If the processing time is long, there may be a problem with the hardware or software of the system. To this end, the time spent by the system for each positioning can be calculated, that is, the system processing delay. The smaller the system processing delay, the higher the positioning accuracy and the better the system performance. If the system processing delay is too large, it indicates that the system has abnormal, and the positioning accuracy will be affected.
基于此，可根据指定目标的应答信号达到各地面接收站的时刻和目标报文的输出时刻之间的时间差，获得系统处理延时，该系统处理延时可表示广域多点定位系统进行定位所耗费的时间；若系统处理延时大于延时阈值，则确定系统处理延时异常，否则确定系统处理延时正常。其中，目标报文的输出时刻即中心处理服务器输出目标报文的时刻，延时阈值可根据系统正常进行一次定位所需的时间，并结合实际应用需求设定。通过系统处理延时，衡量广域多点定位系统处理数据的能力。Based on this, the system processing delay can be obtained according to the time difference between the time when the response signal of the designated target reaches each ground receiving station and the output time of the target message. The time spent; if the system processing delay is greater than the delay threshold, it is determined that the system processing delay is abnormal; otherwise, it is determined that the system processing delay is normal. Among them, the output time of the target message is the time when the central processing server outputs the target message, and the delay threshold can be set according to the time required for the system to perform a positioning normally and combined with the actual application requirements. Through the system processing delay, the ability of the WAN multi-point positioning system to process data is measured.
具体实施时，可分别计算各个参与定位的地面接收站接收到应答信号的时刻和目标报文的输出时刻之间的时间差，对各个地面接收站对应的时间差求平均值，将该平均值作为系统处理延时。或者，可以将第一个接收到应答信号的地面接收站接收到应答信号的时刻和目标报文的输出时刻之间的时间差，作为系统处理延时，即从各个地面接收站对应的时间差中选出最大时间差，将该最大时间差作为系统处理延时。In specific implementation, the time difference between the moment when each ground receiving station participating in the positioning receives the response signal and the output moment of the target message can be calculated separately, the time difference corresponding to each ground receiving station is averaged, and the average value is used as the system Processing delay. Alternatively, the time difference between the time when the first ground receiving station that received the reply signal received the reply signal and the output time of the target message can be used as the system processing delay, that is, the time difference is selected from the time difference corresponding to each ground receiving station. Set the maximum time difference as the system processing delay.
实际应用中，可监控目标报文中的一个或多个指定数据是否发生跳变，例如，指定数据可以是目标定位位置，也可以是识别号。In practical applications, it is possible to monitor whether one or more specified data in the target message jumps. For example, the specified data may be the target positioning position or the identification number.
其中，识别号可以是为各目标分配的航班标识等，飞机的航空器地址码是固定不变的，基于目标报文的航空器地址码来确定目标报文所对应的飞机，而识别号会根据飞机的航班号进行变动，因此不排除出现识别号错误的情况。Among them, the identification number can be the flight identification assigned to each target, etc. The aircraft address code of the aircraft is fixed, and the aircraft corresponding to the target message is determined based on the aircraft address code of the target message, and the identification number The flight number is changed, so it cannot be ruled out that the identification number is wrong.
当指定数据为识别号时，可检测针对指定目标的目标报文中的识别号是否发生变化，若发生变化，则确定识别号异常。When the specified data is an identification number, it can be detected whether the identification number in the target message for the specified target has changed, and if there is a change, it is determined that the identification number is abnormal.
当指定数据为目标定位位置时，可根据已获得的指定目标的目标定位位置，预测指定目标未来的运动轨迹，基于预测的运动轨迹判断后续接收到的目标报文中的目标定位位置是否发生跳变，若发生跳变，则确定目标定位位置异常。即根据指定目标的历史目标定位位置，预测指定目标未来的运动轨迹，如果广域多点定位系统后续给出的目标定位位置与预测的运动轨迹之间的误差大于误差阈值，则表明目标定位位置偏离了预测的运动轨迹。When the specified data is the target positioning position, the future motion trajectory of the specified target can be predicted according to the obtained target positioning position of the specified target, and based on the predicted motion trajectory, it can be judged whether the target positioning position in the subsequently received target message has jumped. If a jump occurs, it is determined that the target positioning position is abnormal. That is, according to the historical target positioning position of the specified target, predict the future motion trajectory of the specified target. If the error between the target positioning position and the predicted motion trajectory given by the wide-area multi-point positioning system is greater than the error threshold, it indicates the target positioning position. deviation from the predicted trajectory.
具体实施时，可结合指定目标的历史位置、航迹等，判断指定目标未来的运动状态，具体可参考CN104035066B公开的内容，进而获得预测的运动轨迹。During specific implementation, the future motion state of the specified target can be judged in combination with the historical position and track of the specified target. For details, please refer to the content disclosed in CN104035066B to obtain the predicted motion trajectory.
如图4所示，基于与上述广域多点定位系统数据质量监控方法相同的发明构思，本申请实施例还提供了一种广域多点定位系统数据质量监控装置40，包括：As shown in FIG. 4 , based on the same inventive concept as the above-mentioned method for monitoring data quality of a wide-area multipoint positioning system, an embodiment of the present application further provides a data
报文获取模块401，用于获取广域多点定位系统输出的工作状态报文、针对指定目标的目标报文和针对指定目标的ADS-B报告报文；其中，所述工作状态报文包括表征所述广域多点定位系统中各个设备的工作状态是否异常的工作状态信息，所述目标报文包括所述广域多点定位系统对所述指定目标进行定位获得的定位相关信息，所述ADS-B报告报文包括所述指定目标的GPS定位数据；A
工作状态解析模块402，用于基于获取到的工作状态报文，确定衡量各个设备工作状态的关键指标是否正常；A working
第一监视数据分析模块403，用于基于获取到的目标报文，确定衡量系统定位准确度的关键指标是否正常；The first monitoring
第二监视数据分析模块404，用于基于获取到的ADS-B报告报文和目标报文，确定衡量系统输出的定位数据合理性的关键指标是否正常；The second monitoring
数据质量分析模块405，用于基于各项关键指标是否正常的判断结果和各项关键指标分别对应的权重，确定所述广域多点定位系统对应的数据质量分值；A data
告警模块406，用于若所述数据质量分值满足告警条件，则输出表示数据质量异常的告警提示信息。The
可选地，所述GPS定位数据包括：GPS位置、GPS定位精度和GPS定位误差，所述目标报文包括：所述广域多点定位系统确定出的所述指定目标的目标定位位置、位置精度和系统定位误差。基于此，所述第二监视数据分析模块404具体用于：判断所述GPS位置和所述目标定位位置之间的差值是否超过定位差阈值，判断所述GPS定位精度和所述位置精度之间的差值是否超过精度差阈值，判断所述GPS定位误差和所述系统定位误差之间的差值是否超过定位误差阈值；基于获得的判断结果，确定衡量系统输出的定位数据合理性的关键指标是否正常。Optionally, the GPS positioning data includes: GPS position, GPS positioning accuracy, and GPS positioning error, and the target message includes: the target positioning position and position of the designated target determined by the wide-area multi-point positioning system Accuracy and System Positioning Error. Based on this, the second monitoring
可选地，所述目标报文包括所述指定目标的目标定位位置和位置精度、参与定位的地面接收站的站点标识，衡量系统定位准确度的关键指标包括定位精度；所述监视数据分析模块403具体用于：根据目标报文中的站点标识，获取参与定位的地面接收站的位置信息；根据参与定位的地面接收站的位置信息和所述指定目标的目标定位位置，确定所述广域多点定位系统对所述指定目标进行定位的定位精度；若所述定位精度和所述位置精度不一致，则确定所述广域多点定位系统定位精度异常。Optionally, the target message includes the target positioning position and position accuracy of the designated target, the site identification of the ground receiving station participating in the positioning, and the key index for measuring the positioning accuracy of the system includes the positioning accuracy; the monitoring
可选地，所述监视数据分析模块403具体用于：根据参与定位的地面接收站的位置信息和所述指定目标的目标定位位置，确定几何精度因子GDOP；根据所述几何精度因子GDOP和伪距测量噪声，确定所述广域多点定位系统对所述指定目标进行定位的定位精度，其中，伪距测量噪声是根据广域多点定位系统的系统参数确定的。Optionally, the monitoring
可选地，衡量系统定位准确度的关键指标包括目标报文更新率、目标报文识别率和系统处理延时中的至少一种。Optionally, the key indicators for measuring system positioning accuracy include at least one of target packet update rate, target packet recognition rate and system processing delay.
当衡量系统定位准确度的关键指标包括目标报文更新率时，所述监视数据分析模块具体403用于：根据单位时长内广域多点定位系统输出的目标报文的数量，确定目标报文更新率，若目标报文更新率小于更新率阈值，则确定目标报文更新率异常，否则确定目标报文更新率正常。When the key indicator for measuring the positioning accuracy of the system includes the target packet update rate, the monitoring
当衡量系统定位准确度的关键指标包括目标报文识别率时，所述监视数据分析模块403具体用于：根据单位时长内广域多点定位系统输出的包含识别信息的目标报文的数量，确定目标报文识别率，若目标报文识别率小于识别率阈值，则确定目标报文识别率异常，否则确定目标报文识别率正常，其中，识别信息表征能够识别到指定目标。When the key indicator for measuring the positioning accuracy of the system includes the target packet recognition rate, the monitoring
当衡量系统定位准确度的关键指标包括系统处理延时时，所述监视数据分析模块403具体用于：根据所述指定目标的应答信号达到各地面接收站的时刻和目标报文的输出时刻之间的时间差，获得系统处理延时，若系统处理延时大于延时阈值，则确定系统处理延时异常，否则确定系统处理延时正常。When the key index for measuring the system positioning accuracy includes the system processing delay, the monitoring
可选地，衡量系统定位准确度的关键指标包括目标报文中的指定数据是否发生跳变，其中指定数据包括目标定位位置和识别号中的至少一项，识别号是为各目标分配的航班标识。Optionally, the key indicator for measuring the accuracy of the system positioning includes whether the specified data in the target message jumps, wherein the specified data includes at least one of the target positioning position and the identification number, and the identification number is the flight assigned to each target. logo.
当指定数据包括目标定位位置时，所述监视数据分析模块403具体用于：根据已获得的指定目标的目标定位位置，预测指定目标未来的运动轨迹，基于预测的运动轨迹判断后续接收到的目标报文中的目标定位位置是否发生跳变，若发生跳变，则确定目标定位位置异常。When the specified data includes the target positioning position, the monitoring
当指定数据包括识别号时，所述监视数据分析模块403具体用于：检测针对指定目标的目标报文中的识别号是否发生变化，若发生变化，则确定识别号异常。When the designated data includes the identification number, the monitoring
可选地，数据质量分析模块405，具体用于基于如下公式确定所述广域多点定位系统对应的数据质量分值
其中，
基于此，告警模块406中的告警条件包括：数据质量分值
可选地，所述工作状态报文为ASTERIX CAT19报文，所述目标报文为ASTERIXCAT20 报文。Optionally, the working status message is an ASTERIX CAT19 message, and the target message is an ASTERIX CAT20 message.
本申请实施例提的广域多点定位系统数据质量监控装置与上述广域多点定位系统数据质量监控方法采用了相同的发明构思，能够取得相同的有益效果，在此不再赘述。The apparatus for monitoring data quality of a wide area multipoint positioning system provided in the embodiment of the present application adopts the same inventive concept as the above-mentioned method for monitoring data quality of a wide area multipoint positioning system, and can achieve the same beneficial effects, which will not be repeated here.
基于与上述广域多点定位系统数据质量监控方法相同的发明构思，本申请实施例还提供了一种电子设备，该电子设备可以是独立的物理服务器，也可以是多个物理服务器构成的服务器集群或者分布式系统，还可以是云服务器，也可以是图1中的监控子系统等。如图5所示，该电子设备50可以包括处理器501和存储器502。Based on the same inventive concept as the above-mentioned method for monitoring data quality of a wide-area multipoint positioning system, an embodiment of the present application further provides an electronic device, which may be an independent physical server or a server composed of multiple physical servers The cluster or distributed system may also be a cloud server, or the monitoring subsystem in FIG. 1 , etc. As shown in FIG. 5 , the
处理器501可以是通用处理器，例如中央处理器（CPU）、数字信号处理器（DigitalSignal Processor，DSP）、专用集成电路（Application Specific Integrated Circuit，ASIC）、现场可编程门阵列（Field Programmable Gate Array，FPGA）或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。The
存储器502作为一种非易失性计算机可读存储介质，可用于存储非易失性软件程序、非易失性计算机可执行程序以及模块。存储器可以包括至少一种类型的存储介质，例如可以包括闪存、硬盘、多媒体卡、卡型存储器、随机访问存储器（Random Access Memory，RAM）、静态随机访问存储器（Static Random Access Memory，SRAM）、可编程只读存储器（Programmable Read Only Memory，PROM）、只读存储器（Read Only Memory，ROM）、带电可擦除可编程只读存储器（Electrically Erasable Programmable Read-Only Memory，EEPROM）、磁性存储器、磁盘、光盘等等。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器502还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。The
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；上述计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于：移动存储设备、随机存取存储器（RAM，Random Access Memory）、磁性存储器（例如软盘、硬盘、磁带、磁光盘（MO）等）、光学存储器（例如CD、DVD、BD、HVD等）、以及半导体存储器（例如ROM、EPROM、EEPROM、非易失性存储器（NAND FLASH）、固态硬盘（SSD））等各种可以存储程序代码的介质。Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute Including the steps of the above-mentioned method embodiment; the above-mentioned computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to: mobile storage device, random access memory (RAM, Random Access Memory), magnetic memory (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical memory (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH) , Solid State Drive (SSD)) and other media that can store program code.
或者，本申请上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备（可以是个人计算机、服务器、或者网络设备等）执行本申请各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、随机存取存储器（RAM，Random Access Memory）、磁性存储器（例如软盘、硬盘、磁带、磁光盘（MO）等）、光学存储器（例如CD、DVD、BD、HVD等）、以及半导体存储器（例如ROM、EPROM、EEPROM、非易失性存储器（NAND FLASH）、固态硬盘（SSD））等各种可以存储程序代码的介质。Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or in the parts that make contributions to the prior art. The computer software products are stored in a storage medium and include several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present application. The aforementioned storage media include: removable storage devices, random access memory (RAM, Random Access Memory), magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical memory (such as CD, DVD, BD, etc.) , HVD, etc.), as well as semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)) and other media that can store program codes.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed by the present invention can easily think of changes or substitutions. All should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
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