CN113075700B - BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion - Google Patents
BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion Download PDFInfo
- Publication number
- CN113075700B CN113075700B CN202110315552.1A CN202110315552A CN113075700B CN 113075700 B CN113075700 B CN 113075700B CN 202110315552 A CN202110315552 A CN 202110315552A CN 113075700 B CN113075700 B CN 113075700B
- Authority
- CN
- China
- Prior art keywords
- monitoring
- bdsbas
- message
- parameters
- telegraph
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/258—Acquisition 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
Abstract
The invention discloses a BDSBAS-B1C message performance monitoring system with multipoint monitoring fusion, which comprises: the system comprises a first monitoring module, a second monitoring module and a third monitoring module, wherein the first monitoring module is used for monitoring parameters of a BDSBAS-B1C telegraph text product of a data processing system and/or parameters of a BDSBAS-B1C telegraph text product of a planning management and control system; the second monitoring module is used for monitoring the content of BDSBAS-B1C telegraph messages transmitted among the systems and/or monitoring the content of upper telegraph messages of the uplink injection system; the third monitoring module is used for monitoring at least one of service performance, a message recovery updating period, message recovery content and message injection receipt information of the BDSBAS-B1C space signals. The invention can monitor the strong real-time telegraph text broadcast by the on-line system in real time by constructing a monitoring system which combines internal monitoring with external monitoring, single-point monitoring with large and small ring monitoring, information and service performance monitoring and on-line monitoring with off-line monitoring.
Description
Technical Field
The invention belongs to the technical field of satellite navigation, and particularly relates to a BDSBAS-B1C message performance monitoring system with multipoint monitoring fusion.
Background
The Beidou Satellite-based Augmentation System (BDSBAS) is an important component and an important infrastructure of a Beidou Satellite Navigation System (BDS), aims to utilize a certain number of ground monitoring stations to continuously track and observe Navigation Satellite signals, process and form corresponding wide-area differential correction number and integrity information, and is broadcasted through geosynchronous orbit (GEO) satellites, so that the application fields of civil aviation, maritime affairs, railways and the like are oriented, the real-time positioning accuracy and integrity early warning capability of a user is improved, and the application requirements of the user on high accuracy and high integrity are met.
Fig. 1 is a schematic structural diagram of a beidou satellite-based augmentation system, and a ground operation control center is the core of beidou satellite-based augmentation service and operation management, and mainly comprises a planning management and control system, a data processing system, an uplink injection system, a data analysis system, a monitoring station and the like, wherein the data processing system is responsible for processing various telegraph text parameters of BDSBAS; the planning and control system is responsible for arranging and monitoring BDSBAS messages; the uplink injection system is responsible for injecting BDSBAS telegraph text; the data analysis system is responsible for auxiliary monitoring of BDSBAS messages; and the monitoring station is responsible for acquiring the observation data of the Beidou and other GNSS satellites. The stable operation of each system/monitoring station is one of the continuous and reliable key elements of the Beidou satellite-based enhanced service. Meanwhile, in order to enhance the monitoring of the BDSBAS-B1C telegraph and service performance, off-line analysis and evaluation are required from the perspective of users.
The BDSBAS-B1C signal is a pseudo-random noise (PRN) code modulated on a BDS B1C frequency point (1575.42MHz), and a satellite-based enhanced message (hereinafter referred to as "BDSBAS-B1C message") broadcasted based on the frequency point signal is closely related to the safety of international aviation users, so that how to comprehensively and seamlessly monitor and alarm a complete message information stream and avoid the influence of various operations on the continuity of message broadcasting have an extremely important meaning, but the country lacks a set of methods for real-time monitoring and rapid fault identification of the BDSBAS-B1C message applicable to the beidou satellite-based enhanced system. Therefore, a strong real-time monitoring method of the BDSBAS telegraph text is needed to be invented, which not only meets the international standard convention, but also meets the characteristics of the BDS system in China, so that the rapid positioning of the missing reason of the broadcast telegraph text is realized, and the continuity and the availability of the broadcast of the BDSBAS telegraph text are further ensured.
Disclosure of Invention
The invention aims to solve the technical problem that the defects in the background art are overcome, and provides a BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion, so that the technical problems that BDSBAS-B1C message real-time monitoring and fault rapid identification of a Beidou satellite-based augmentation system cannot be realized in the prior art are solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a multipoint monitoring fused BDSBAS-B1C message performance monitoring system comprises:
the monitoring system comprises a first monitoring module, a second monitoring module and a third monitoring module;
the first monitoring module is used for monitoring parameters of a BDSBAS-B1C message product of a data processing system of a ground operation control center and/or monitoring parameters of a BDSBAS-B1C message product of a planning management and control system of the ground operation control center;
the second monitoring module is used for monitoring the content of BDSBAS-B1C telegraph messages transmitted among systems of the ground operation control center and/or monitoring the content of upper telegraph messages of an uplink injection system of the ground operation control center;
the third monitoring module is used for monitoring at least one of service performance, a message recovery updating period, message recovery content and message injection receipt information of the BDSBAS-B1C space signals.
Further, the monitoring of the parameters of the BDSBAS-B1C telegraph text product of the data processing system of the ground operation control center specifically includes:
and monitoring parameters of the BDSBAS-B1C telegraph text products generated by the data processing system, and/or monitoring parameters of the BDSBAS-B1C telegraph text products sent to a planning management and control system by the data processing system.
Further, the monitoring of the parameters of the BDSBAS-B1C telegraph text product generated by the data processing system specifically includes:
monitoring parameters of satellite-ground observation data acquired by the data processing system, and/or monitoring resolving effectiveness parameters of the data processing system for resolving BDSBAS-B1C telegraph text products;
the parameters of the satellite-ground observation data comprise at least one of pseudo-range phase, transmission delay and inbound rate;
the calculation effectiveness parameters comprise at least one parameter of calculation group number, parameter value range and calculation time delay.
Further, the monitoring data processing system sends the parameters of the BDSBAS-B1C telegraph text product to the planning management and control system, and the parameters specifically include:
monitoring the arranging validity parameters of the BDSBAS-B1C telegraph text products arranged by the data processing system and/or monitoring the sending period of the BDSBAS-B1C telegraph text products sent by the data processing system;
the arranging validity parameters of the BDSBAS-B1C telegraph text products comprise at least one parameter of the number of information groups, the information length, the arranging time delay and the data age period of the BDSBAS-B1C telegraph text products.
Further, the monitoring of the parameters of the BDSBAS-B1C telegraph text product of the planning management and control system of the ground operation control center specifically includes:
monitoring a receiving period of BDSBAS-B1C telegraph text products received by the planning management and control system, and/or monitoring an arrangement effectiveness parameter of the telegraph notes arranged by the planning management and control system;
the arranging validity parameter for arranging the upper note text comprises at least one parameter of information grouping, information length, formatting, parameter value range and arranging time delay of the upper note text.
Further, the monitoring of the content of the BDSBAS-B1C telegraph text transmitted between systems of the ground operation control center specifically includes:
and monitoring a first BDSBAS-B1C message sent to the planning and control system by a data processing system of the ground operation control center in real time, sending a second BDSBAS-B1C message sent to the uplink injection system by the planning and control system, and comparing the contents of the first BDSBAS-B1C message and the second BDSBAS-B1C message.
Further, the monitoring of the content of the upper power message of the uplink injection system of the ground operation control center specifically includes:
monitoring a first message obtained after the uplink injection system carries out secondary arrangement on the upper power message, monitoring a second message obtained after the uplink injection system carries out secondary arrangement on the upper power message, recovering the second power message through the small-loop link of the transmitting terminal by the uplink injection system, and comparing the contents of the first message and the second message.
Further, the monitoring of the service performance of the BDSBAS-B1C space signal specifically includes:
receiving broadcast ephemeris and satellite clock parameters broadcast by a satellite and broadcast messages under BDSBAS-B1C in real time, and monitoring one or more of precision, positioning precision, continuity parameters and availability parameters of BDSBAS-B1C space signals in real time;
and monitoring one or more of the accuracy, the positioning accuracy, the continuity parameter and the availability parameter of the BDSBAS-B1C space signal according to the broadcast ephemeris, the satellite clock parameter and the BDSBAS-B1C broadcast telegraph text which are stored off line and broadcast by the satellite.
Further, the monitoring of the content of the recycled telegrams specifically comprises:
monitoring the broadcast messages under the BDSBAS-B1C recovered by at least three different monitoring stations in real time, and comparing the content of the broadcast messages under the BDSBAS-B1C recovered by the at least three different monitoring stations.
Preferably, the system further comprises a monitoring result processing module;
and the monitoring result processing module is used for receiving the monitoring results sent by the first monitoring module, the second monitoring module and the third monitoring module and visualizing the monitoring results.
The invention has the following beneficial effects:
first, internal monitoring is combined with external monitoring. The invention adopts a mode of combining the internal monitoring of the ground operation control center and the external monitoring of the user to comprehensively monitor the BDSBAS-B1C telegraph text.
Second, single-point monitoring is combined with large and small ring monitoring. The invention takes BDSBAS-B1C message information flow as traction, adopts a BDSBAS-B1C message ringlet and large ring monitoring scheme combining multiple systems, multiple monitoring points and multiple elements, and a ground operation control center constructs a monitoring system combining single-point monitoring, ringlet monitoring and large ring monitoring together in a data processing system, a planning management and control system, a data analysis system, an uplink injection system and a user section.
Third, the information is combined with service performance monitoring. The invention carries out monitoring based on two dimensions of information and service performance, from the information monitoring, the BDSBAS-B1C message monitoring covers all broadcasted message information types, and from the service performance monitoring, the BDSBAS-B1C message monitoring covers the positioning precision, the time service precision, the service continuity and the availability monitoring.
Fourth, online monitoring is combined with offline evaluation. The invention adopts a mode of combining real-time monitoring of a ground operation control center and offline evaluation of a user evaluation domain to monitor and evaluate BDSBAS messages and service performance in a hierarchical level.
Drawings
FIG. 1 is a schematic structural diagram of a Beidou satellite based augmentation system in the prior art;
FIG. 2 is a schematic structural diagram of a first embodiment of the invention, which is a BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion;
FIG. 3 is a diagram of a fast-change modifier information formatting;
FIG. 4 is a schematic diagram of ionospheric delay correction information formatting;
FIG. 5 is a schematic structural diagram of a multipoint monitoring fused BDSBAS-B1C message performance monitoring system according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
The invention discloses a BDSBAS-B1C message performance monitoring system integrating multipoint monitoring, which provides BDSBAS-B1C message performance monitoring for users by constructing a monitoring system combining internal monitoring with external monitoring, combining single-point monitoring with large and small ring monitoring, combining information with service performance monitoring and combining online monitoring with offline monitoring.
FIG. 2 is a block diagram of the multipoint monitoring fused BDSBAS-B1C message performance monitoring system of the present invention, which includes: a first monitoring module 1, a second monitoring module 2 and a third monitoring module 3.
The first monitoring module 1 is used for monitoring parameters of a BDSBAS-B1C telegraph text product of a data processing system of a ground operation control center and/or monitoring parameters of a BDSBAS-B1C telegraph text product of a planning management and control system of the ground operation control center.
The second monitoring module is used for monitoring the content of the BDSBAS-B1C telegraph text transmitted between systems of the ground operation control center and/or monitoring the content of the upper telegraph text of the uplink injection system of the ground operation control center.
The third monitoring module is used for monitoring at least one of service performance, a message recovery updating period, message recovery content and message injection receipt information of the BDSBAS-B1C space signals.
In this embodiment, the first monitoring module 1 monitors the data processing system and the BDSBAS-B1C telegraph products of the planning management and control system based on the parameter characteristics.
The first monitoring module 1 monitors parameters of a BDSBAS-B1C telegraph text product of the data processing system, and specifically comprises: and monitoring the parameters of the BDSBAS-B1C telegraph text products generated by the data processing system and/or monitoring the parameters of the BDSBAS-B1C telegraph text products sent to the planning management and control system by the data processing system.
That is to say, the first monitoring module 1 monitors the parameters of the BDSBAS-B1C message product of the data processing system, and mainly includes a generation step of the BDSBAS-B1C message product generated by the data processing system, and a transmission step of transmitting the BDSBAS-B1C message product to the planning management and control system.
Further, the first monitoring module 1 monitors parameters of the BDSBAS-B1C telegraph text product generated by the data processing system, and specifically includes: monitoring parameters of satellite-ground observation data acquired by the data processing system, and/or monitoring resolving effectiveness parameters of the data processing system resolving BDSBAS-B1C telegraph text products.
The parameters of the satellite-ground observation data comprise at least one parameter of pseudo-range phase, transmission delay and inbound rate, the parameter values are monitored, and when the phenomena that the pseudo-range phase abnormally jumps to a range exceeding 4m, the transmission delay exceeds 3s, more than half of the monitoring station data inbound rate is 0 and the like occur, the abnormal monitoring result of the satellite-ground observation data can be obtained.
The data processing system resolves the resolving effectiveness parameters of the BDSBAS-B1C telegraph text products, the resolving effectiveness parameters comprise at least one parameter of resolving group number, parameter value range and calculating time delay, the parameters are monitored, and when the resolving group number is 0, the parameter value range is out of limit, the calculating time is out of limit and the like, the monitoring result that the resolving effectiveness of the data processing system resolving the BDSBAS-B1C telegraph text products is abnormal can be obtained. The BDSBAS-B1C message product mainly comprises a fast change correction number, a slow change correction number, an ionospheric delay correction number, a GEO satellite navigation message and the like. And respectively monitoring the finite parameters of the resolution of the telegraph text product, so as to obtain a monitoring result of whether the resolution effectiveness is abnormal or not.
For example, in the BDSBAS-B1C telegraph product, the format of the fast change correction is shown in fig. 3, the fast change correction is represented by a 12-bit complement, the quantization unit is 0.125m, the effective range is-256.00 m-255.875 m, and when the phenomena of 0 fast change correction calculation set number, parameter value range exceeding-256.00 m-255.875 m, calculation overtime and the like occur, the monitoring result of the abnormal calculation effectiveness of the fast change correction calculated by the data processing system can be obtained.
In the BDSBAS-B1C telegraph text product, the slow change correction number comprises three-dimensional position correction quantities delta x, delta y and delta z and three-dimensional speed correction
Clock error correction amount delta af0Clock speed correction amount delta af1The parameters are equal, wherein the information lengths of the delta x, the delta y and the delta z are all 11 bits, the quantization unit is 0.125m, and the effective range is-128 m to 128 m;
has an information length of 8 bits and a quantization unit of 2-11m, the effective range is +/-0.0625 m/s; clock error correction amount delta af0Has an information length of 11 bits and a quantization unit of 2-31m, effective range is +/-2-21s; clock speed correction amount delta af1Has an information length of 8 bits and a quantization unit of 2-39m, effective range is +/-2-32s/s. When the number of the slow-change correction number calculation sets is 0, the three-dimensional position correction amounts delta x, delta y and delta z and the three-dimensional speed correction are carried out
Clock error correction amount delta af0Clock speed correction amount delta af1And when the parameter value range exceeds the effective range, the calculation is overtime and the like, the monitoring result of the abnormal resolving effectiveness of the slow-changing correction number of the data processing system can be obtained.
In the BDSBAS-B1C telegraph product, the format of the ionospheric delay correction number is shown in figure 4, the information length of the ionospheric delay correction number is 9bit, the quantization unit is 0.125m, the effective range is 0 m-63.875 m, and when the phenomena of 0 ionospheric delay correction number resolving group number, 0 m-63.875 m parameter value range, overtime calculation and the like occur, the monitoring result of the resolving effectiveness abnormity of the ionospheric delay correction number of the data processing system can be obtained.
In the BDSBAS-B1C message product, the GEO satellite navigation message contains the position X of the GEO satellite providing the SBAS service in the earth fixed systemG、YG、ZGSpeed of
Acceleration of a vehicle
Reference time t0Clock error aGf0Clock speed aGf1Wherein X isG、YGThe information length of (2) is 30bit, the quantization unit is 0.08m, and the effective range is +/-42949673 m; zGThe information length of (2) is 25bit, the quantization unit is 0.4m, and the effective range is +/-6710886.4 m;
the information length of (2) is 17 bits, the quantization unit is 0.000625m/s, and the effective range is +/-40.96 m/s;
the information length of (2) is 18bit, the quantization unit is 0.004m, and the effective range is +/-524.228 m/s;
has an information length of 10 bits and a quantization unit of 0.0000125m/s2The effective range is +/-0.0064 m/s2；
Has an information length of 10 bits and a quantization unit of 0.0000625m/s2The effective range is +/-0.032 m/s2(ii) a Clock error correction amount delta af0Has an information length of 12 bits and a quantization unit of 2-31m, effective range of + -0.9537 × 10-6s; clock speed correction amount delta af1Has an information length of 8 bits and a quantization unit of 2-40m, effective range of + -1.1642 × 10-10s/s. When the number of the resolving sets is 0, the parameter value ranges exceed the effective range, the calculation is overtime and the like, the monitoring result of the data processing system for resolving the resolving effectiveness abnormity of the GEO satellite navigation message can be obtained.
Similarly, the effectiveness parameters such as the resolving group number, the parameter value range, the calculation delay and the like of other BDSBAS-B1C telegraph products can be monitored, and a monitoring result of whether the resolving effectiveness is abnormal or not can be obtained.
In this embodiment, the monitoring of the parameters of the BDSBAS-B1C text product sent by the data processing system to the planning management and control system by the first monitoring module 1 specifically includes: the monitoring data processing system schedules schedule effectiveness parameters of the BDSBAS-B1C telegraph text products and/or monitors the sending period of the BDSBAS-B1C telegraph text products sent by the data processing system.
The arranging validity parameters of the BDSBAS-B1C telegraph text products comprise at least one parameter of the number of information groups, the information length, the arranging time delay and the data age period of the BDSBAS-B1C telegraph text products. The BDSBAS-B1C message product mainly comprises a satellite-based enhanced fast-changing correction number, a satellite-based enhanced slow-changing correction number, a satellite-based enhanced GEO satellite navigation message, a base-enhanced ionosphere delay correction number and the like, and specific formatting formats of various information are specified in the prior art, and are not repeated herein. When the phenomena that the number of information groups of the BDSBAS-B1C telegraph text products is 0, the information length is out of limit, the scheduling time delay, the data age jumping and the like are monitored, the monitoring result that the scheduling effectiveness of the BDSBAS-B1C telegraph text products scheduled by the data processing system is abnormal can be obtained.
According to the transmission cycle characteristics of the data processing system to different types of information in the BDSBAS-B1C messages, according to the requirement of an update cycle, the BDSBAS-B1C messages are mainly divided into 3 types: 6s, 120s and 240 s. The first monitoring module 1 monitors the transmission period of the telegraph text products BDSBAS-B1C transmitted by the data processing system, and when the transmission periods of the telegraph text products in the corresponding periods are not matched, the monitoring result of the abnormal transmission period of the telegraph text products BDSBAS-B1C transmitted by the data processing system can be obtained.
In this embodiment, the monitoring of the parameters of the BDSBAS-B1C message product of the planning management and control system of the ground operation control center by the first monitoring module 1 specifically includes: the monitoring planning management and control system receives the receiving period of the BDSBAS-B1C telegraph text products, and/or the monitoring planning management and control system arranges the arranging validity parameters of the upper power-on telegraph text.
According to the characteristics of the planning management and control system on different types of information receiving periods in BDSBAS-B1C telegraph messages, the receiving periods of BDSBAS-B1C telegraph message products received by the planning management and control system are monitored according to the requirement of the telegraph message updating period, and when the receiving periods of the telegraph message products in the corresponding periods are not matched, the monitoring result that the receiving periods of the BDSBAS-B1C telegraph message products received by the planning management and control system are abnormal can be obtained.
According to the information grouping, information length, formatting, parameter range, scheduling delay and other parameter characteristics of the power-over-the-air messages on the BDSBAS-B1C, the first monitoring module 1 monitors at least one scheduling validity parameter of the information grouping, information length, formatting, parameter value range and scheduling delay of the power-over-the-air messages scheduled by the scheduling management and control system, and when the phenomena of information grouping abnormality, information length overrun, scheduling failure, scheduling exceeding 300ms, parameter value overrun and the like occur, a monitoring result of the scheduling validity parameter abnormality of the power-over-the-air messages scheduled by the scheduling management and control system can be obtained.
In this embodiment, the second monitoring module 2 is configured to monitor content of a BDSBAS-B1C message transmitted between systems of the ground operation control center, and/or content of an uplink message of an uplink injection system of the ground operation control center.
The method includes that a BDSBAS-B1C message is generated according to a data processing system and sent to a planning management and control system, the planning management and control system generates a message generation flow that an upper message is sent to an uplink injection system after the message is arranged, and a second monitoring module 2 monitors the content of the BDSBAS-B1C message transmitted among systems of a ground operation control center, and specifically includes: and monitoring a first BDSBAS-B1C message sent to the planning and control system by a data processing system of the ground operation control center in real time, sending a second BDSBAS-B1C message sent to the uplink injection system by the planning and control system, and comparing the contents of the first BDSBAS-B1C message and the second BDSBAS-B1C message. When the message content of the first BDSBAS-B1C message is inconsistent with the message content of the second BDSBAS-B1C message, the monitoring result of the content abnormity of the BDSBAS-B1C message transmitted between systems of the ground operation control center can be obtained.
The method includes the steps that secondary arrangement is carried out on an upper power message according to an uplink injection system, the upper power message is sent to a satellite, the satellite is arranged again to form a message forwarding flow from a BDSBAS-B1C lower power message to a user, and a second monitoring module 2 monitors the content of the upper power message of the uplink injection system of a ground operation control center, and specifically includes the following steps: monitoring a first message obtained after the uplink injection system carries out secondary arrangement on the upper power message, and a second message obtained after the uplink injection system recovers the upper power message subjected to secondary arrangement through the small-loop link of the transmitting terminal, and comparing the contents of the first message and the second message. When the message content of the first message is inconsistent with the message content of the second message, the abnormal content monitoring result of the upper message of the uplink injection system of the ground operation control center can be obtained.
In this embodiment, the third monitoring module 3 is configured to monitor at least one of service performance of the BDSBAS-B1C space signal, a message recovery update period, message recovery content, and message injection receipt information.
The third monitoring module 3 is configured to monitor service performance of the BDSBAS-B1C space signal, and specifically includes: the third monitoring module 3 receives broadcast ephemeris, satellite clock parameters and broadcast messages under the BDSBAS-B1C broadcast by the satellite in real time, and monitors one or more of the precision, positioning precision, continuity parameters and availability parameters of the space signals of the BDSBAS-B1C in real time. When the gradual abnormal phenomena of BDSBAS-B1C space signal accuracy jump exceeding 0.5m, positioning accuracy exceeding 4m, service interruption exceeding 240s, BDSBAS-B1C space signal accuracy decay, positioning accuracy decay, service availability reduction, service area reduction and the like occur, the monitoring result of service performance abnormity of the BDSBAS-B1C space signal can be obtained in real time.
In addition, the third monitoring module 3 monitors one or more of the accuracy, the positioning accuracy, the continuity parameter and the availability parameter of the space signal of the BDSBAS-B1C according to the broadcast ephemeris broadcast by the satellite, the satellite clock parameter and the broadcast text under the BDSBAS-B1C which are stored off-line. When the slow-change abnormal phenomena such as BDSBAS-B1C space signal accuracy jump/decay, positioning accuracy overrun/decay, service availability reduction, service area reduction and the like occur, the monitoring result of the service performance abnormity of the BDSBAS-B1C space signal can be obtained.
The third monitoring module 3 monitors the update cycle of the recovered telegraph text, and specifically comprises: the third monitoring module 3 monitors the broadcast message updating period under BDSBAS-B1C in real time, and the third monitoring module 3 monitors the broadcast message updating period under BDSBAS-B1C in an off-line mode, so that when the broadcast period is abnormal, the monitoring result of the abnormal recycle message updating period can be obtained.
The third monitoring module 3 monitors the content of the recycled telegrams, and specifically comprises: and monitoring the broadcast messages under the BDSBAS-B1C recovered by at least three different monitoring stations in real time, and comparing the content of the broadcast messages under the BDSBAS-B1C recovered by the at least three different monitoring stations. When the abnormal condition that the comparison of the recovered messages of at least 3 monitoring stations is consistent does not exist, or when the comparison of the injected messages and the recovered messages of 3 monitoring stations (configurable) is inconsistent, the monitoring result that the content of the recovered messages is abnormal can be obtained.
The third monitoring module 3 monitors receipt information injected by telegrams, and specifically comprises: the third monitoring module 3 judges injection states such as successful injection, failure in receiving a check result, no receipt of injection equipment, incapability of injecting the satellite, failure in injection and the like based on injection receipt information in the satellite return telemetry information. When the injection is unsuccessful, the monitoring result of the abnormal message injection receipt information can be obtained.
Example two
A schematic structural diagram of a BDSBAS-B1C message performance monitoring system with multipoint monitoring fusion according to a second embodiment of the present invention is shown in fig. 5, and a BDSBAS-B1C message performance monitoring system is provided for a user by constructing a monitoring system combining internal monitoring with external monitoring, combining single-point monitoring with large-small loop monitoring, combining information and service performance monitoring, and combining online monitoring with offline monitoring.
The BDSBAS-B1C message performance monitoring system with multipoint monitoring fusion of the embodiment includes: the monitoring system comprises a first monitoring module 1, a second monitoring module 2 and a third monitoring module 3; and the monitoring result processing module 4 is also included.
The first monitoring module 1 is used for monitoring parameters of a BDSBAS-B1C telegraph text product of a data processing system of a ground operation control center and/or monitoring parameters of a BDSBAS-B1C telegraph text product of a planning management and control system of the ground operation control center.
The second monitoring module 2 is used for monitoring the content of the BDSBAS-B1C telegraph text transmitted between systems of the ground operation control center and/or monitoring the content of the upper telegraph text of the uplink injection system of the ground operation control center.
The third monitoring module 3 is used for monitoring at least one of service performance, a message recovery updating period, message recovery content and message injection receipt information of the BDSBAS-B1C space signals.
And the monitoring result processing module 4 is used for receiving the monitoring results sent by the first monitoring module 1, the second monitoring module 2 and the third monitoring module 3 and visualizing the monitoring results, and the visualization technology can adopt the existing mature technology. In addition, the monitoring result processing module 4 may also store the received monitoring result locally, which is not described herein again.
In conclusion, the invention provides a BDSBAS-B1C message performance monitoring system integrating multipoint monitoring, which can monitor strong real-time messages broadcast by an online system in real time by constructing a monitoring system combining internal monitoring with external monitoring, combining single-point monitoring with large and small ring monitoring, combining information with service performance monitoring and combining online monitoring with offline monitoring, and practice verification shows that the time for positioning and diagnosing the BDSBAS-B1C message abnormity by using the BDSBAS-B1C message performance monitoring system is better than 6s, thereby filling the blank of BDSBAS-B1C message injection monitoring and fault rapid diagnosis.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above. It will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the invention and these modifications are to be considered within the scope of the invention.
Claims (6)
1. A multipoint monitoring fused BDSBAS-B1C message performance monitoring system is characterized by comprising:
the monitoring system comprises a first monitoring module, a second monitoring module and a third monitoring module;
the first monitoring module is used for monitoring parameters of a BDSBAS-B1C message product of a data processing system of a ground operation control center and/or monitoring parameters of a BDSBAS-B1C message product of a planning management and control system of the ground operation control center;
the second monitoring module is used for monitoring the content of BDSBAS-B1C telegraph messages transmitted among systems of the ground operation control center and/or monitoring the content of upper telegraph messages of an uplink injection system of the ground operation control center;
the method for monitoring the content of the BDSBAS-B1C telegraph text transmitted between systems of the ground operation control center specifically comprises the following steps: monitoring a first BDSBAS-B1C message sent to a planning management and control system by a data processing system of a ground operation control center in real time, sending a second BDSBAS-B1C message sent to an uplink injection system by the planning management and control system, and comparing the contents of the first BDSBAS-B1C message and the second BDSBAS-B1C message;
the content of monitoring the upper power message of the uplink injection system of the ground operation control center specifically comprises the following steps: monitoring a first message obtained after the uplink injection system carries out secondary arrangement on the upper power message, and a second message obtained after the uplink injection system recovers the upper power message subjected to secondary arrangement through a transmitting terminal small loop link, and comparing the contents of the first message and the second message;
the third monitoring module is used for monitoring at least one of service performance, a message recovery updating period, message recovery content and message injection receipt information of the BDSBAS-B1C space signals;
the monitoring of the service performance of the BDSBAS-B1C space signal specifically includes: receiving broadcast ephemeris and satellite clock parameters broadcast by a satellite and broadcast messages under BDSBAS-B1C in real time, and monitoring one or more of precision, positioning precision, continuity parameters and availability parameters of BDSBAS-B1C space signals in real time; monitoring one or more of the precision, the positioning precision, the continuity parameter and the availability parameter of the BDSBAS-B1C space signal according to the broadcast ephemeris broadcast by the satellite stored off-line, the satellite clock parameter and the broadcast message under BDSBAS-B1C;
the monitoring and recovering of the content of the telegrams specifically comprises the following steps: monitoring the broadcast messages under the BDSBAS-B1C recovered by at least three different monitoring stations in real time, and comparing the content of the broadcast messages under the BDSBAS-B1C recovered by the at least three different monitoring stations.
2. The system of claim 1, wherein the system for monitoring the message performance of BDSBAS-B1C fused with multipoint monitoring,
the monitoring of the parameters of the BDSBAS-B1C telegraph text product of the data processing system of the ground operation control center specifically comprises the following steps:
and monitoring parameters of the BDSBAS-B1C telegraph text products generated by the data processing system, and/or monitoring parameters of the BDSBAS-B1C telegraph text products sent to a planning management and control system by the data processing system.
3. The system of claim 2, wherein the system for monitoring the message performance of BDSBAS-B1C fused with multipoint monitoring,
the monitoring of the parameters of the BDSBAS-B1C telegraph text product generated by the data processing system specifically comprises the following steps:
monitoring parameters of satellite-ground observation data acquired by the data processing system, and/or monitoring resolving effectiveness parameters of the data processing system for resolving BDSBAS-B1C telegraph text products;
the parameters of the satellite-ground observation data comprise at least one of pseudo-range phase, transmission delay and inbound rate;
the calculation effectiveness parameters comprise at least one parameter of calculation group number, parameter value range and calculation time delay.
4. The system of claim 2, wherein the system for monitoring the message performance of BDSBAS-B1C fused with multipoint monitoring,
the parameters of the BDSBAS-B1C telegraph text products sent to the planning management and control system by the monitoring data processing system specifically include:
monitoring the arranging validity parameters of the BDSBAS-B1C telegraph text products arranged by the data processing system and/or monitoring the sending period of the BDSBAS-B1C telegraph text products sent by the data processing system;
the arranging validity parameters of the BDSBAS-B1C telegraph text products comprise at least one parameter of the number of information groups, the information length, the arranging time delay and the data age period of the BDSBAS-B1C telegraph text products.
5. The system of claim 1, wherein the system for monitoring the message performance of BDSBAS-B1C fused with multipoint monitoring,
the monitoring of the parameters of the BDSBAS-B1C telegraph text product of the planning management and control system of the ground operation control center specifically comprises the following steps:
monitoring a receiving period of BDSBAS-B1C telegraph text products received by the planning management and control system, and/or monitoring an arrangement effectiveness parameter of the telegraph notes arranged by the planning management and control system;
the arranging validity parameter for arranging the upper note text comprises at least one parameter of information grouping, information length, formatting, parameter value range and arranging time delay of the upper note text.
6. The system for monitoring the message performance of BDSBAS-B1C fused with multipoint monitoring as claimed in any one of claims 1 to 5,
the system also comprises a monitoring result processing module;
and the monitoring result processing module is used for receiving the monitoring results sent by the first monitoring module, the second monitoring module and the third monitoring module and visualizing the monitoring results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315552.1A CN113075700B (en) | 2021-03-24 | 2021-03-24 | BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315552.1A CN113075700B (en) | 2021-03-24 | 2021-03-24 | BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113075700A CN113075700A (en) | 2021-07-06 |
| CN113075700B true CN113075700B (en) | 2021-11-30 |
Family
ID=76610673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315552.1A Active CN113075700B (en) | 2021-03-24 | 2021-03-24 | BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113075700B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114637031B (en) * | 2022-04-02 | 2023-02-28 | 中国人民解放军32021部队 | Beidou civil dual-frequency satellite-based enhanced message communication method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1970723A1 (en) * | 2007-03-16 | 2008-09-17 | GMV Aerospace and Defence S.A. | Method for the computation of improved SBAS protection levels valid in non-controlled environments |
| CN101776762A (en) * | 2009-12-30 | 2010-07-14 | 北京航空航天大学 | Completeness monitoring method, device and system based on multi-foundation enhancement system |
| CN105527629A (en) * | 2014-09-29 | 2016-04-27 | 郑州威科姆科技股份有限公司 | Beidou satellite navigation system performance monitoring device and monitoring method thereof |
| CN112162300A (en) * | 2020-09-22 | 2021-01-01 | 中国科学院空天信息创新研究院 | Satellite-based enhancement system and text authentication method based on same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133689A (en) * | 2019-05-24 | 2019-08-16 | 中国科学院国家授时中心 | Adaptive user autonomous integrity monitoring method |
-
2021
- 2021-03-24 CN CN202110315552.1A patent/CN113075700B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1970723A1 (en) * | 2007-03-16 | 2008-09-17 | GMV Aerospace and Defence S.A. | Method for the computation of improved SBAS protection levels valid in non-controlled environments |
| CN101776762A (en) * | 2009-12-30 | 2010-07-14 | 北京航空航天大学 | Completeness monitoring method, device and system based on multi-foundation enhancement system |
| CN105527629A (en) * | 2014-09-29 | 2016-04-27 | 郑州威科姆科技股份有限公司 | Beidou satellite navigation system performance monitoring device and monitoring method thereof |
| CN112162300A (en) * | 2020-09-22 | 2021-01-01 | 中国科学院空天信息创新研究院 | Satellite-based enhancement system and text authentication method based on same |
Non-Patent Citations (1)
| Title |
|---|
| "星基增强系统导航电文及完好性信息研究";梁曦 等;《空间电子技术》;20161231;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113075700A (en) | 2021-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101893713B (en) | Device and method for monitoring release information performance of local area augmentation system | |
| CN101950025B (en) | Data quality monitoring method for local enhancing system | |
| CN101776762A (en) | Completeness monitoring method, device and system based on multi-foundation enhancement system | |
| CN109001766B (en) | Satellite navigation system integrity monitoring method and system based on networking low-earth-orbit satellite | |
| CN101308208A (en) | Satellite positioning process and system | |
| CN113075700B (en) | BDSBAS-B1C message performance monitoring system with multi-point monitoring fusion | |
| CN109100748A (en) | A kind of navigation integrity monitoring system and method based on low rail constellation | |
| CN113406673B (en) | Method for monitoring real-time correction service integrity of wide area difference enhancement system | |
| CN104365042A (en) | Method and master clock for generating fail-silent synchronization messages | |
| CN109459774A (en) | A kind of transmission tower deformation monitoring system and method based on judgement of transfiniting | |
| CN111308513B (en) | Navigation satellite signal and telegraph text autonomous integrated monitoring system and method | |
| EP2420902A2 (en) | System for synchronizing signals on a telecommunication network | |
| CN101674544A (en) | Airplane information real-time message monitoring system and method | |
| CN111679295B (en) | Reliability evaluation method for star-based enhanced system communication network | |
| CN111198386A (en) | Integrity monitoring system and method of GNSS augmentation system | |
| US11022695B1 (en) | GBAS integrity risk allocation system based on key satellites | |
| CN114325764A (en) | Satellite-ground integrated high-precision positioning service monitoring system | |
| Jia et al. | Design and Analysis of Beidou Global Integrity System Based on LEO Augmentation | |
| Zhang et al. | Development and Application of Big Data in the Field of Satellite Navigation | |
| CN108417095A (en) | A kind of monitoring method of the flight position tracking and health of aircraft | |
| CN113740885A (en) | Base station and satellite fault simulation system based on network differential positioning service | |
| CN111007543B (en) | Single-epoch real-time clock error fusion system and method | |
| CN115902981B (en) | Train positioning optimization method and system and rail transit vehicle | |
| Liu et al. | GPS/BDS-based virtual balise-enabling satellite-based train control with a train-centric approach | |
| Wang et al. | Wireless Data Transmission Method of Earthquake Early Warning Information in High Speed Railway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |