CN100517413C - ADS-B control workstation data processing system - Google Patents
ADS-B control workstation data processing system Download PDFInfo
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- CN100517413C CN100517413C CNB2007101202744A CN200710120274A CN100517413C CN 100517413 C CN100517413 C CN 100517413C CN B2007101202744 A CNB2007101202744 A CN B2007101202744A CN 200710120274 A CN200710120274 A CN 200710120274A CN 100517413 C CN100517413 C CN 100517413C
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Abstract
An ADS-S control workstation data processing system is provided, which comprises an input data processing module, a single ground station tracking module and a multiple ground station tracking module. The input data processing module preprocesses the input ADS-B message and sends corresponding alarming information to mistaken message; the single ground station tracking module processes the status message data, mode message data, service message in each single station ADS-B message, establishes the track of each single station according to the starting point of track and maintains the ADS-B track linked list of single station via track renewal and termination; the multiple ground station tracking module tracks a plurality of ADS-B ground stations according to the established single ADS-B track, ensures the overload protection for system capacity, establishes a multiple ADS-B system track for each object according to the starting point of track and maintains the ADS-B track linked list of single station via track renewal and termination. Therefore, the invention aims at ADS-B processing and lowers down the complexity for processing.
Description
Technical field
The present invention relates to a kind of data handling system of control workstation, particularly a kind of data handling system of ADS-B control workstation belongs to the air traffic control field.
Background technology
The basic goal of air traffic control is to make aircraft safety on the course line, effective and plannedly fly in the spatial domain, and the controller need dynamically carry out real time monitoring to the flight of aircraft in the control zone.
Traditional radar surveillance means adopt interrogator-responder system to target detection.In the long run, radar system self has a lot of limitation, has limited the raising of monitor performance.The rectilinear propagation of radar beam has formed a large amount of radar shadow, can't cover areas such as ocean and desert; The radar swing circle has limited the raising of data updating rate, thereby has limited the raising that monitors precision; The situation data such as plan air route, speed of aircraft be can't obtain, the raising of tracking accuracy and the ability that short-term collision detects alarm STCA limited.Therefore, need the new supervision means of exploitation.
Automatic dependent surveillance broadcast ADS-B utilizes aircraft to broadcast the precise location information that is generated by airborne satellite-based navigation and positioning system automatically, uphole equipment and other aircrafts receive this information by aeronautical data chain, and satellite system, aircraft and ground based system are realized the integrative coordinated supervision in the empty world by the high-speed data chain.ADS-B has not only overcome some problems of traditional radar surveillance means, and has advantages such as precision height, turnover rate height, applied range, uphole equipment construction and maintenance cost are low.
The job of air traffic control station is a kind of tools for controlling of air traffic controller, and this tools for controlling need possess two kinds of basic functions: monitor and communicate by letter.Supervision is meant that by specific supervision means the controller observes and obtain real-time aircraft position on specific display screen; Communication is meant that the controller utilizes means of communication such as speech and data to carry out real-time communication and exchange with the pilot.The controller can obtain detailed aircraft-position information by monitoring in time with communicating by letter, can obtain timely with the pilot again simultaneously and get in touch, so just can carry out air traffic control to the aircraft in the control zone anywhere or anytime, aircraft can be flown according to correct air route, thereby reduce the air traffic accident rate, improve the air route flight safety, the controller also can dispatch other aircrafts in the control zone effectively, optimize the air route of aircraft, improve air traffic and spatial domain utilization factor, bring good economic benefit.
With reference to the ADS-B of CAAC technical policy, ADS-B will at first be applied to the empty supervision in ground as a kind of emerging surveillance technology, promptly play a kind of effect that is similar to radar, and " class radar " service is provided.Traditional control workstation all is based on radar data, along with the rise of ADS-B technology, has extensively carried out the research that the ADS-B data is incorporated existing radar control workstation system in the world.The big state-owned very big difference of blank pipes such as the situation of China and America and Europe, states such as America and Europe all have more perfect radar to cover, and Chinese region is vast, with a varied topography, exists a large amount of high mountains, Desert Area, especially radar can't be built in these areas in the west area.According to the ADS-B of CAAC technical policy, CAAC will at first consider not have in western part the area construction that radar covers and apply the ADS-B system, and CAAC does not still have the control workstation system in these areas, therefore needs the control workstation system of development one cover based on the ADS-B data badly.
Because ADS-B is based on the cooperating type surveillance of airborne communication navigational facility, its principle of work fundamentally is different from traditional active monitor system based on radio distance-measuring (radar), therefore has more different based on the control workstation system of ADS-B data and traditional control workstation system based on radar data.
The turnover rate of ADS-B data is per second 1 time, is much higher than the turnover rate (air route radar 12 seconds 1 time, terminal area radar 4 seconds 1 time) of traditional radar; The ADS-B system uses the expansion text message format of Mode S, " expansion " be with secondary radar comparatively speaking, in the 56bit extension of message of secondary radar wrapped to the 112bit of ADS-B.Therefore, need handle with respect to data volume based on the control workstation system of ADS-B data based on several times of the control workstation systems of radar data even tens times, and the ADS-B data are directly inserted existing control workstation system, only can handle the ADS-B data suitable with the radar data amount, thus can lost part ADS-B data.
The coded system of ADS-B data is wanted the many of complexity than secondary radar: the form of ADS-B downward message is DF17, message mainly comprises DF, CA, AA, ME, the several fields of PI, wherein, ME is a data segment, form by 56bit, its initial 5 bit (33-37bit) are called the TYPE field, are used for the identification message type, as the TYPE value be 9～18 o'clock be aircraft position message, the TYPE value be 19 o'clock be air speed message, the TYPE value is 1～4th, and identification message, TYPE value are 27 to be flight tendency information etc., and a coding only transmits a kind of information of particular type, the transmission cycle of different types of messages is also different, as: location message and the every 0.4-0.6 of speed messages upgrade once second, and the every 4.8-5.2 of identification message upgrades once second, and the every 1.6-1.8 of tendency information upgrades once second.The mode of this variable Rate transmission of ADS-B data causes increasing greatly based on the data processing method complexity of the control workstation system of ADS-B data, and the ADS-B data are directly inserted existing control workstation system, the various types of information updating rates of ADS-B can be defaulted as the turnover rate of radar data, processing leads to errors; Even the demand that turnover rate also only can meet a type (such as position and velocity information) manually is set, can't be provided with respectively.
And comprised the information that a large amount of radar data did not comprise in the ADS-B data, as flight tendency information, velocity information, ICAO 24 bit address information etc., need effectively to utilize and these data are carried out special processing based on the control workstation of ADS-B data.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, a kind of ADS-B control workstation data processing system is provided, this system can handle at ADS-B, handles complexity simultaneously and reduces, and has improved data-handling efficiency.
Technical solution of the present invention: a kind of ADS-B control workstation data processing system, its characteristics are to comprise: input data processing module, single land station tracking module, many land stations tracking module, wherein:
The input data processing module, ADS-B message to input carries out pre-service, promptly the information off-line that ADS-B message, system realm code SAC value and the system banner code SIC that imports shown is carried out analysis and filter, abandon the corresponding error message, to delivering to single land station tracking module through the ADS-B message that filters, simultaneously error message is sent corresponding warning information, and warning information is delivered to system's control and monitor module;
Single land station tracking module, reception from the input data processing module filter after each single station ADS-B message, wherein state message, pattern message, duties message are handled respectively, set up each single station ADS-B flight path by track initiation, and safeguard each single station ADS-B flight path chained list by flight path renewal and termination;
Many land stations tracking module; be used for each a plurality of ADS-B of single station ADS-B Track In Track land station that has set up according to target; carry out the overload protection of power system capacity; set up the multistation ADS-B system flight path of each target by track initiation, and upgrade with flight path by flight path and to stop safeguarding multistation ADS-B system flight path chained list.
Described input data processing module also will carry out data statistics, flight path management, the assessment of ADS-B system cycle to the ADS-B message of input, sends corresponding warning information, and warning information is delivered to system's control and monitor module.
The present invention's advantage compared with prior art is:
(1) because ADS-B is based on the cooperating type surveillance of airborne communication navigational facility, its principle of work fundamentally is different from traditional active monitor system based on radio distance-measuring (radar).First, the turnover rate of ADS-B data is per second 1 time, message length is 112bits, all be much higher than traditional radar, make and to handle with respect to data volume based on several times of the control workstation systems of radar data even tens times based on the control workstation system of ADS-B data, therefore the present invention carried out pre-service before carrying out the ADS-B data processing, realize input data error filtration, data statistics, flight path management and system cycle assessment, for several times of processing even several data volume that decuples traditional radar data of back are prepared.
(2) the ADS-B data comprise various types of information, the transmission cycle difference of different types of messages, cause increasing greatly based on the data processing method complexity of the control workstation system of ADS-B data, the characteristics that the present invention is directed to various types of information are carried out corresponding data processing, definition system's flight path processing rule separately, comprise system's track initiation, upgrade and stop, thereby the dirigibility of increase data processing has improved data-handling efficiency.
(3) owing to comprised the information that a large amount of radar data did not comprise in the ADS-B data, as the tendency information of flying, velocity information, ICAO 24 bit address information, data integrity information etc., in data handling procedure, can rationally use these information, thereby increase such as data integrity detect, by data processing functions such as the ICAO address are relevant, improved data-handling efficiency.
In a word, the present invention can handle several times even several data volume that decuples traditional radar data, has higher dirigibility and and treatment effeciency than the data processing of traditional radar control workstation.
Description of drawings
Fig. 1 is a composition frame chart of the present invention;
Fig. 2 is the process flow diagram of input data processing module among Fig. 1;
Fig. 3 is the process flow diagram of single-point land station tracking module among Fig. 1;
Fig. 4 is the process flow diagram of track initiation among Fig. 3;
Fig. 5 is the process flow diagram that flight path upgrades among Fig. 3;
Fig. 6 is the process flow diagram that flight path stops among Fig. 3;
Fig. 7 is the process flow diagram of the many land stations tracking module among Fig. 1;
Fig. 8 is the process flow diagram of the overload protection among Fig. 7;
Fig. 9 is the process flow diagram of track initiation among Fig. 7;
Figure 10 is the process flow diagram that flight path upgrades among Fig. 7;
Figure 11 is the process flow diagram that flight path stops among Fig. 7.
Embodiment
As shown in Figure 1, the total flow chart of data processing of ADS-B control workstation of the present invention comprises 3 parts: input data processing module, single land station tracking module, many land stations tracking module:
(1) input data processing module
This functions of modules is for to carry out pre-service to the ADS-B message.It is input as ADS-B message and information off-line, and output then is pretreated ADS-B message of process and corresponding warning information.Its detailed process and contained content be as shown in Figure 2:
A. input data error filters
Be used for analyzing the message mistake and send alarm, input ADS-B message, the SAC value (System Area Code: the system realm code), the SIC table (System Identification Code: the system banner code), ADS-B message and the warning information of output through filtering.At first check and whether have following situation in the message: not clear SIC-SAC address, lack that essential data item, timestamp are discontinuous, target is positioned at beyond the ADS-B land station investigative range, if there is above-mentioned situation, then abandon corresponding message, and warning information is sent to system's control and monitor module.
B. data statistics
Be used for assessing the every statistics of ADS-B, input ADS-B message, outputting alarm information.Calculate the message total that receives from ADS-B land station in each system cycle, the message total that abandons in each system cycle.Calculate the mean value of these data in predetermined several system cycles, mean value must be lower than predetermined systematic parameter, if exceed systematic parameter, then sends a warning message to system's control and monitor module.If the message total that receives from ADS-B land station in each system cycle surpasses the reservation system threshold value, then send a warning message to system's control and monitor module.
C. flight path management
Monitor the precision of ADS-B land station and ADS-B control workstation data processing by test.Input ADS-B test packet, outputting alarm information.The target location and the normal place that detect are compared,, think that then the precision of this ADS-B land station and ADS-B control workstation data processing reaches requirement if the target location of detecting is dropped in the normal place preset range on every side.
The assessment of D.ADS-B system cycle
Be used for assessing the ADS-B system cycle.Input ADS-B message, outputting alarm information.Utilize the system cycle of ADS-B message assessment ADS-B, and judge whether a message arrives down, if do not arrive on time, then the system of sending a warning message controls and monitor module on time.
(2) tracking of single land station
Each single station ADS-B message that reception is transmitted from the input data processing module, wherein the ADS-B message mainly comprises: state message (State Vector Report), pattern message (Mode Status Report), duties message (OnCondition report).State message mainly comprises the current position of target, speed, course and precision information thereof, and for the aircraft of high-speed motion aloft, state message has the turnover rate of per second 1 time; The pattern message mainly comprises the current operation information of target, and as aircraft ICAO 24 bit address, catchword etc., pattern message turnover rate is per 5 seconds 1 time; The duties message only will take place just can occur when motor-driven in target, be the peculiar message segment of ADS-B, can be used as supplementary and handle.
Based on processing to state message data, pattern message data, duties message data, set up single ADS-B flight path of each single station ADS-B by track initiation, and upgrade with termination by flight path and to safeguard each single station ADS-B flight path chained list, this chained list mainly comprises 3 parts: state message chained list, pattern message chained list and duties message chained list, concrete structure are respectively shown in table 1-table 3:
Table 1 state message chained list
| The chained list sequence number | Particular content | The chained list sequence number | Particular content |
| 1 | Aircraft ICAO address | 10 | The NUC value of speed |
| 2 | Latitude | 11 | Barometer altitude |
| 3 | Precision | 12 | The barometer altitude rate |
| 4 | Geometric height | 13 | Air velocity |
| 5 | The NUC value of position | 14 | Ground speed |
| 6 | Effective geometric position | 15 | Turn to sign |
| 7 | North orientation speed | 16 | The time that is suitable for |
| 8 | East orientation speed | 17 | Type of message |
| 9 | Vertical speed |
Table 2 pattern message chained list
| The chained list sequence number | Particular content | The chained list sequence number | Particular content |
| 1 | Aircraft ICAO address | 4 | The way point longitude |
| 2 | Wail | 5 | The way point height |
| 3 | The way point latitude | 6 | Promptly/priority status |
Table 3 duties message chained list
| The chained list sequence number | Particular content | The chained list sequence number | Particular content |
| 1 | Next way point latitude | 3 | Next way point height |
| 2 | Next way point precision | 4 | The time that needs |
The tracking treatment scheme of single land station specifically may further comprise the steps as shown in Figure 3:
A. system's track initiation
If receive the individual state message of m (m 〉=3 can be provided with voluntarily according to user's request) continuously, and the internal schema message does not change during this period of time; Perhaps receive n (n 〉=2 continuously, can be provided with voluntarily according to user's request) individual state message, and receive the individual duties message of p (p 〉=1 can be provided with voluntarily according to user's request) during this period of time, when the pattern message does not change simultaneously, can initial new system's flight path.Idiographic flow as shown in Figure 4.
B. system's flight path upgrades
Be used for the update system flight path, after system's track initiation, when receiving new state message or duties message, then carry out system's flight path and upgrade.Be input as system's flight path data, be output as the system's flight path data after the renewal.Idiographic flow as shown in Figure 5.
D. system's flight path stops
Be used for the termination system flight path, be input as system's flight path data, be output as warning information, if both confiscated the ADS-B state message of the target of certain existing record in the update cycle at m state message, also confiscate the ADS-B duties message of this target, think that then this flight path is insecure, should report to the police this flight path; If process q (q 〉=5 can be provided with voluntarily according to user's request) the individual state message update cycle is not received the ADS-B state message and the duties message of this aircraft yet, think that then the flight path of this target stops, should remove its record.Idiographic flow as shown in Figure 6.
(3) tracking of many land stations
Major function is each a plurality of ADS-B of the single ADS-B land station's Track In Track land station that has set up according to target.
At first to carry out the overload protection of power system capacity to single ADS-B flight path; ADS-B flight path to arriving first on the preferential select time of the flight path of same target in addition; set up the multistation ADS-B system flight path of each target by track initiation; and upgrade with flight path by flight path and to stop safeguarding multistation ADS-B system flight path chained list; list structure is followed the tracks of identical with single land station; quantitatively be the multiple of single earth station system flight path chained list number, but reference table 1-table 3.
The tracking treatment scheme of many land stations specifically may further comprise the steps as shown in Figure 7:
A. overload protection
When system's flight path number surpasses system thresholds, send alarm, be input as system's flight path data, be output as warning information.If system's flight path number surpasses 80% of the treatable maximum system flight path number of institute of system, then send one and transship " preoverload " warning information in advance and control and monitor module to system; If system's flight path number reaches the treatable maximum flight path number of system, then can not create new flight path, and send an overload " overload " warning information and control and monitor module to system; If system's flight path number be lower than system treatable maximum flight path number 90%, then send an information to system's control and monitor module, cancellation overload " overload ", if system's flight path number be lower than system treatable maximum flight path number 70%, then send an information to system's control and monitor module, the pre-overload of cancellation " preoverload ".If when system receives the NUC value smaller or equal to 5 ADS-B flight path data, then report to the police, realize the integrity monitoring alarm.Idiographic flow as shown in Figure 8.
B. system's track initiation
If receive m state message continuously, and the internal schema message does not change during this period of time, in addition the message of not broadcasting simultaneously from same target in this m message; Perhaps receive n state message continuously, the internal schema message does not change during this period of time simultaneously, and when receiving p duties message during this period of time, when this n state message is not the message of broadcasting simultaneously from same target in addition, can initial new system's flight path.Idiographic flow as shown in Figure 9.
C. system's flight path upgrades
Be used for the update system flight path, after system's track initiation, when receiving new state message or duties message, and when determining that it and the state message of front or duties message are not the message of broadcasting simultaneously from same target, then carry out system's flight path renewal.Be input as system's flight path data, be output as the system's flight path data after the renewal.If receive the ADS-B message of same target from two land stations, then that newer message is the system update flight path on the select time, and the time that abandons is gone up ADS-B message early.Idiographic flow as shown in figure 10.
D. system's flight path stops
Be used for the termination system flight path, be input as system's flight path data, be output as warning information, if both confiscated in the update cycle from the ADS-B state message of certain existing record object at face station at random at m state message, also confiscate the ADS-B duties message of this target, think that then this flight path is insecure, should report to the police this flight path; If do not receive the ADS-B state message and the duties message of this target yet through q state message update cycle, think that then the flight path of this target stops, should remove its record, idiographic flow is as shown in figure 11.
Claims (10)
1, a kind of ADS-B control workstation data processing system is characterized in that comprising: input data processing module, single land station tracking module, many land stations tracking module, wherein:
The input data processing module, ADS-B message to input carries out pre-service, promptly the information off-line that ADS-B message, system realm code SAC value and the system banner code SIC that imports shown is carried out analysis and filter, abandon the corresponding error message, to delivering to single land station tracking module through the ADS-B message that filters, simultaneously error message is sent corresponding warning information, and warning information is delivered to system's control and monitor module;
Single land station tracking module, each single station ADS-B message after reception is filtered from the input data processing module, wherein state message, pattern message, duties message are handled respectively, set up each single station ADS-B flight path by track initiation, and safeguard each single station ADS-B flight path chained list by flight path renewal and termination;
Many land stations tracking module; be used for each a plurality of ADS-B of single station ADS-B Track In Track land station that has set up according to target; carry out the overload protection of power system capacity; set up the multistation ADS-B system flight path of each target by track initiation, and upgrade with flight path by flight path and to stop safeguarding multistation ADS-B system flight path chained list.
2, ADS-B control workstation data processing system according to claim 1, it is characterized in that: described input data processing module also will carry out data statistics, flight path management, the assessment of ADS-B system cycle to the ADS-B message of input, send corresponding warning information, and warning information is delivered to system's control and monitor module.
3, ADS-B control workstation data processing system according to claim 1 and 2, it is characterized in that: the method for described analysis and filter is: at first check whether there is following situation in the message: not clear SIC-SAC address or lack essential data item or timestamp is discontinuous or target is positioned at beyond the ADS-B land station investigative range, if there is above-mentioned situation, then abandon corresponding message, and warning information is sent to system's control and monitor module.
4, ADS-B control workstation data processing system according to claim 2, it is characterized in that: described data statistics, be used for assessing the every statistics of ADS-B, the steps include: to calculate the message total that receives from ADS-B land station in each system cycle, the message total that abandons in each system cycle, in predetermined several system cycles, calculate the mean value of these data, mean value need be lower than predetermined systematic parameter, if exceed systematic parameter, then send a warning message to system's control and monitor module; If the message total that receives from ADS-B land station in each system cycle surpasses the reservation system threshold value, then send a warning message to system's control and monitor module.
5, ADS-B control workstation data processing system according to claim 2, it is characterized in that: described flight path management, the ADS-B test packet of input is monitored the precision of ADS-B land station and ADS-B control workstation data processing by test, it is embodied as: the target location and the normal place that detect are compared, if the target location of detecting is dropped in the normal place preset range on every side, think that then the precision of this ADS-B land station and ADS-B control workstation data processing reaches requirement.
6, ADS-B control workstation data processing system according to claim 2, it is characterized in that: described ADS-B system cycle assessment is embodied as: the system cycle that utilizes ADS-B message assessment ADS-B, and judge whether a message arrives on time down, if do not arrive on time, then the system of sending a warning message controls and monitor module.
7, ADS-B control workstation data processing system according to claim 1 and 2, it is characterized in that: described state message mainly comprises the current position of target, speed, course and precision information thereof, for the aircraft of high-speed motion aloft, state message has the turnover rate of per second 1 time; Described pattern message mainly comprises the current operation information of target; Described duties message only will take place just can occur when motor-driven in target, be the peculiar message segment of ADS-B, handle as supplementary.
8, ADS-B control workstation data processing system according to claim 1 and 2, it is characterized in that: the tracking module of described single land station comprises: system's track initiation, system's flight path upgrade and system's flight path stops, wherein:
System's track initiation: if receive m continuously, m 〉=3 state message, and the internal schema message does not change during this period of time; Perhaps receive n continuously, n 〉=2 state message, and receive p during this period of time, and p 〉=1 a duties message, when the pattern message does not change simultaneously, initial new system's flight path;
The system flight path upgrades, and is used for the update system flight path, after system's track initiation, when receiving new state message or duties message, then carries out system's flight path and upgrades;
System's flight path stops, be used for the termination system flight path, if at m, m 〉=3 state message had both been confiscated the ADS-B state message of the target of certain existing record in the update cycle, also confiscate the ADS-B duties message of this target, think that then this flight path is insecure, should report to the police this flight path; If through q, q 〉=5 a state message update cycle is not received the ADS-B state message and the duties message of this aircraft yet, thinks that then the flight path of this target stops, should remove its record.
9, ADS-B control workstation data processing system according to claim 1 and 2, it is characterized in that: the tracking of described many land stations comprises: overload protection, system's track initiation, system's flight path upgrade and system's flight path stops, wherein:
Overload protection sends alarm when system's flight path number surpasses system thresholds;
System's track initiation, if receive m continuously, m 〉=3 state message, and the internal schema message does not change during this period of time, does not have the message of broadcasting simultaneously from same target in addition in this m message; Perhaps receive n continuously, n 〉=2 state message, the internal schema message does not change during this period of time simultaneously, and receive p during this period of time, during p 〉=1 duties message, when this n state message is not the message of broadcasting simultaneously from same target in addition, then initial new system's flight path;
System's flight path upgrades, be used for the update system flight path, after system's track initiation, when receiving new state message or duties message, and when determining that the state message of it and front or duties message are not the message of broadcasting simultaneously from same target, then carry out system's flight path and upgrade, the system's flight path data after output is upgraded; If receive the ADS-B message of same target from two land stations, then that newer message is the system update flight path on the select time, and the time that abandons is gone up ADS-B message early;
System's flight path stops, be used for the termination system flight path, if at m, m 〉=3 state message had both been confiscated in the update cycle from the ADS-B state message of certain existing record object at face station at random, also confiscate the ADS-B duties message of this target, think that then this flight path is insecure, should alarm this flight path; If through q, q 〉=5 a state message update cycle is not received the ADS-B state message and the duties message of this target yet, thinks that then the flight path of this target stops, should remove its record.
10, ADS-B control workstation data processing system according to claim 9, it is characterized in that: described overload protection is embodied as: if system's flight path number surpasses 80% of the treatable maximum system flight path number of institute of system, then send one and transship " preoverload " warning information in advance and control and monitor module to system; If system's flight path number reaches the treatable maximum flight path number of system, then can not create new flight path, and send an overload " overload " warning information and control and monitor module to system; If system's flight path number be lower than system treatable maximum flight path number 90%, then send an information to system's control and monitor module, cancellation overload " overload ", if system's flight path number be lower than system treatable maximum flight path number 70%, then send an information to system's control and monitor module, the pre-overload of cancellation " preoverload ", when if system receives navigation uncertainty NUC value smaller or equal to 5 ADS-B flight path data, then report to the police, realize the integrity monitoring alarm.
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| US8731810B2 (en) * | 2010-12-10 | 2014-05-20 | The Boeing Company | Aircraft path conformance monitoring |
| CN102682627B (en) * | 2012-05-04 | 2014-04-09 | 北京民航天宇科技发展有限公司 | General aviation flight monitoring airborne system based on ADS-B (Automatic Dependent Surveillance-Broadcast) |
| CN103677747A (en) * | 2012-09-25 | 2014-03-26 | 上海航天测控通信研究所 | Display control software track information processing method |
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| CN104091471B (en) * | 2014-07-08 | 2016-03-16 | 北京东进航空科技股份有限公司 | The monitoring control communication means of monitoring control terminal, flight path target and system |
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