CN105825720A - Optimization method for effectively reducing short-term flight conflict false alarms - Google Patents
Optimization method for effectively reducing short-term flight conflict false alarms Download PDFInfo
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Abstract
The invention relates to an optimization method for effectively reducing short-term flight conflict false alarms. The method includes the following steps: a protective area of an aircraft is calculated according to a multi-dimensional scene of flight postures of an aircraft pair, when the other aircraft enters the protective area, a flight path flight conflict alarm is generated, the aircraft pair are obtained, combined with corresponding flight plans, distinguishing methods of vertical direction allowable flight altitude, flight posture alarm relief, alarm suppression area, secondary code, flight plan and inside or outside a control sector are used to detect the aircraft pair that satisfies alarm triggering conditions one by one, when one of the distinguishing methods detects that the flight path flight conflict alarm is a false alarm, detection is stopped and the alarm is judged to be a false alarm, and when none of the distinguishing methods can detect that the flight path flight conflict alarm is a false alarm, the alarm is judged to be a valid alarm. The method provided by the invention utilizes the multi-dimensional scene of the flight postures to calculate the flight conflict alarm optimizing protective area, and for the aircraft that triggers the alarm conditions, alarm information is relieved and eliminated and is not displayed according to multi-element comprehensive flight path information, thereby reducing the false alarm rate.
Description
Technical field
The invention belongs to technical field of aerospace, be specifically related to the optimization method of a kind of effective minimizing short-term flight collision alarm false-alarm.
Background technology
The alarm of short-term flight collision is one of most important alarm of air traffic control automation system, is distinctly claimed its function in civil aviation industry standard " alarm of Air Traffic Control Automation System minimum safe altitude and short-term flight collision alarm function " (MH/T4022-2006).Require in the standard: when the horizontal interval of airborne vehicle flight path pair, perpendicular separation simultaneously less than or in alarm time will simultaneously less than the parameter value set time, system should produce the alarm to this flight path.
Common short-term flight collision alarm scheme is in specifying alarm region, setting the alarm parameters such as minimum level warning distance, minimum vertical interval and pre-alarm time, the flight path of airborne vehicle is to providing alarm after once meeting alarm or pre-Alerting requirements immediately or alerting in advance.
Prior art reduces the technical method of false alarm rate of air traffic control automatization system short-term collision alarm and is equivalent to give an ellipse protective to airborne vehicle in the horizontal plane, refers to Fig. 1 and illustrates generation alarm when the ellipse protective of airborne vehicle is invaded by another airborne vehicle.Obtained the air position parameter of each airborne vehicle by navigation observ, and its location parameter is projected to the display plane of air traffic control system；Obtain its position vector and velocity；Calculate airborne vehicle between distance, when this distance ＜ short term collision alert thresholding, continuation following steps, otherwise it is assumed that airborne vehicle is in a safe condition；Calculate airborne vehicle between position vector difference and velocity difference and the two inner product, as this inner product ＜ 0, then report collision alert, otherwise it is assumed that Lothrus apterus between two airborne vehicles.Disciform protection zone is revised as in rectangle protection zone by prior art; the major axis direct ratio of the oval area and the speed along flight path direction of airborne vehicle; the speed in flight path direction cut by short axle then direct ratio and airborne vehicle; once the ellipse protection zone of airborne vehicle has another airborne vehicle to invade, then report short term collision alert.Process the airborne vehicle primary signal obtained from navigation observ (surveillance radar, GPS or ADS-B system) with filtering mode, the optimization carrying out collision alert subsequently calculates.Prior art has considered airborne vehicle and has currently carried out speed and flight position relation, reduces the false alarm rate of short term collision alert.Prior art is mentioned and rectangle protection zone is revised as disciform protection zone, but does not illustrate how to realize.Prior art is the most single describes a kind of this method how reducing false-alarm when calculating and alerting, and is not involved with after alarm conditions trigger combining aircraft plan and other operations and arranging the method releasing alarm with not prompt alarm.
In view of producing a lot of false-alarm in running at actual airborne vehicle, false-alarm is many easily causes feeling of numbness for controller, once occurring that true alarm controller's also habituation is considered false-alarm, causes serious security incident.The most how to reduce the problem that false-alarm have to solve.
Summary of the invention
In order to solve to produce during prior art airborne vehicle runs the technical problem of many false-alarms; it is an object of the present invention to provide, based on airborne vehicle, the multidimensional scene calculating of flight posture is obtained flight collision alarm; optimize obtained a kind of than ellipse the protection zone of the least similar egg type; reduce the generation of false-alarm, it is thus achieved that the optimization method of a kind of effective minimizing short-term flight collision alarm false-alarm.
The present invention provides the optimization method of a kind of effective minimizing short-term flight collision alarm false-alarm to include:
Step S1: the multidimensional scene of flight posture calculates the protection zone of an airborne vehicle according to airborne vehicle, produces track flight collision alert when another airborne vehicle enters described protection zone, obtains triggering the airborne vehicle pair of alarm conditions；
Step S2: the airborne vehicle of satisfied triggering alarm conditions used the flight plan combining its correspondence inside and outside vertical direction clear for flying height, flight posture releasing alarm, alarm inhibition zone, secondary code, flight plan, control sector, retrieval flight path data separation mode detects one by one, one of wherein differentiation mode detects that described track flight collision alert is false-alarm i.e. termination detection and judges that this alarm is false-alarm, and each of which distinguishes mode all can not detect that described track flight collision alert is that false-alarm then judges that this alarm is as effectively alarm；Wherein:
The concrete steps using described clear for flying height detection track flight collision alert include:
Step S22a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Step S22b: judge to have triggered the airborne vehicle of alarm conditions to one of be provided with clear for flying height and at clear for flying altitude, then track flight conflict is false-alarm；Clear for flying height is not set or flight is not at clear for flying height, then track flight conflict is effectively alarm；
The concrete steps releasing alarm detection track flight collision alert according to described flight posture include:
Step S23a: obtain a upper unit of time, the flight path of current time unit airborne vehicle pair；Step S23b: the airborne vehicle triggering alarm conditions is judged a upper unit of time, the flight posture of current time unit airborne vehicle pair to flight path, although standoff distance is also in the range of alarm, but as long as being remote from flight posture and meeting the alarm of setting and cancel distance, then ahead relieving track flight collision alert；The flight path of described airborne vehicle pair is remote from flight posture, and does not meets the alarm of setting away from distance and cancel distance, then confirm that track flight conflict be effectively to alert；
Concrete steps according to described alarm inhibition zone detection track flight collision alert include: step S24a: obtain the flight path of current time unit airborne vehicle pair；Step S24b: obtain airborne vehicle alarm inhibition zone information, being compared with alarm inhibition zone information by the flight path of the airborne vehicle pair by triggering alarm conditions, the comparison success in alarm inhibition zone of the flight path of any one airborne vehicle then confirms that track flight conflict is false-alarm；The all comparison unsuccessful then confirmation track flight conflicts in alarm inhibition zone of the flight path of airborne vehicle pair are effectively alarm；
Concrete steps according to described secondary code infomation detection track flight collision alert include: step S25a: the flight path comparison to the airborne vehicle pair triggering alarm conditions, it is thus achieved that the secondary code information of airborne vehicle pair；Step S25b: if judging that the secondary code information of airborne vehicle pair broadly falls into the scope of secondary code alarm suppression, then confirm that track flight conflict is false-alarm；If at least an airborne vehicle is not belonging to the scope that secondary code alarm suppresses, then confirm that track flight conflict is effectively alarm；
Concrete steps according to described flight plan detection track flight collision alert include: step S26: to triggering the airborne vehicle of alarm conditions to flight path comparison, it is thus achieved that the flight plan information of airborne vehicle pair；Step S26b: judge that airborne vehicle, to whether having flight plan information, if airborne vehicle is not to all having corresponding flight plan, then confirms that track flight conflict is false-alarm；If at least an airborne vehicle has corresponding flight plan, then confirm that track flight conflict is effectively alarm；
Include according to the concrete steps of shield detection track flight collision alert inside and outside described control sector: step S27a: obtain the flight path of the current time unit of airborne vehicle pair；Step S27b: judge to have triggered the airborne vehicle of alarm conditions to the affiliated sector in regulatory area, for the sector that affiliated sector is unrelated regarding this track flight collision alert with airborne vehicle as false-alarm, carries out alarm shield when showing in this sector；Track flight conflict then regards as effectively alarm for the affiliated sector of airborne vehicle pair, show in this sector and confirm that track flight conflict is for effectively alerting；
Concrete steps according to described retrieval flight path infomation detection track flight collision alert include: step S28a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Step S28b: according to current time unit, the flight path of the described airborne vehicle pair of next unit of time, retrieve the corresponding relation that track flight conflict is effectively alarm and airborne vehicle flight path pair of record, then confirm that track flight conflict is effectively alarm, do not retrieve track flight conflict effectively alarm and the corresponding relation of airborne vehicle flight path pair of record, then track flight conflict is false-alarm.
Beneficial effects of the present invention: compared with the conventional method; the present invention according to airborne vehicle between flight posture relative flight is set, follows the polynary alarm parameters such as flight, parallel flight and combine the differential seat angle of flight path and alert; do not affect airborne vehicle safety in the case of optimize obtained a kind of than ellipse the protection zone of the least similar egg type, greatly reduce the generation of false-alarm.Prior art uses and uses the calculating alarm of single alarm parameter in the horizontal plane, and is not involved with after alarm conditions trigger combining aircraft plan and other operations and arranging the method releasing alarm with not prompt alarm.The present invention not only when calculating alarm algorithm more to optimize protection zone than prior art less, also use vertical direction to use clear for flying height (CFL) to distinguish, release on alarm, airdrome scene intelligent decision according to flight posture in alarm inhibition zone, secondary code is distinguished, flight plan is distinguished, inside and outside control sector the multiple method such as differentiation airborne vehicle to combine after triggering alarm conditions aircraft plan and other operations and arranging release alarm and not prompt alarm to reach to reduce the purpose of false-alarm.The present invention solves the problem that air traffic control system false-alarm is many, it is to avoid controller, because the alarm that system is provided by visual fatigue is paid no attention to, ignores that to fall the aircraft being truly present dangerous close to alarm.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the oval protective of prior art airborne vehicle produces alarm when being invaded by another airborne vehicle；
Fig. 2 is the flow chart that the present invention effectively reduces the optimization method of short-term flight collision alarm false-alarm；
Fig. 3 be airborne vehicle of the present invention between flying scene schematic diagram；
Fig. 4 is the embodiment flow chart that the present invention is calculated flight path triggering alarm conditions based on described airborne vehicle to the multidimensional scene of flight posture；
Fig. 5 is the warning distance schematic diagram that the present invention alerts in scene；
Fig. 6 is that the present invention contrasts schematic diagram with prior art protection zone.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and referring to the drawings, the present invention is described in more detail.
Referring to the embodiment of the optimization method of a kind of effective minimizing short-term flight collision alarm false-alarm that Fig. 2 illustrates that the present invention provides, the step of the method embodiment includes:
Step S1: the multidimensional scene of flight posture calculates the protection zone of an airborne vehicle according to airborne vehicle, produces track flight collision alert when another airborne vehicle enters described protection zone, obtains triggering the airborne vehicle pair of alarm conditions；
Step S2: the airborne vehicle of satisfied triggering alarm conditions used the flight plan combining its correspondence inside and outside vertical direction clear for flying height, flight posture releasing alarm, alarm inhibition zone, secondary code, flight plan, control sector, retrieval flight path data separation mode detects one by one, one of wherein differentiation mode detects that described track flight collision alert is false-alarm i.e. termination detection and judges that this alarm is false-alarm, and each of which distinguishes mode all can not detect that described track flight collision alert is that false-alarm then judges that this alarm is as effectively alarm.
It is described below and according to airborne vehicle, the multidimensional scene of flight posture is calculated, the specific embodiment of detection flight collision alarm:
Refer to Fig. 3 illustrate airborne vehicle between flying scene schematic diagram, there is shown: two airborne vehicle relative flight scenes, the tracking scene that two airborne vehicles fly in the same direction, two parallel flying scenes of airborne vehicle, two airborne vehicle cross flying scenes.
Refer to Fig. 4 and illustrate that the present invention is calculated the embodiment 1 of the flight path triggering alarm conditions of airborne vehicle pair based on described airborne vehicle to the multidimensional scene of flight posture, polynary alarm parameter is set and includes:
θ is the course angle of two frame airborne vehicles；
d1It is that two airborne vehicles trigger the relative warning distance that collision alert need to meet when meeting relative flight situation；
d2Be two airborne vehicles meet trigger when following flight posture collision alert needs satisfied follow warning distance；
d3It is that two airborne vehicles trigger the parallel warning distance that collision alert needs are satisfied when meeting parallel flight posture；
d4It it is the warning distance on the horizontal plane in intersection alarm.
The step of the airborne vehicle pair that the multidimensional scene of flight posture is calculated triggering alarm conditions based on described airborne vehicle includes:
Step S21a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Described route projection to both vertically and horizontally；Obtain the flight path of described next unit of time airborne vehicle pair typically at a unit of time the shortest, can regard aircraft as is rectilinear flight, so according to the flight path information of current time unit, the flight path information of a upper unit of time, the information such as the speed of aircraft, may infer that the flight path information of next unit of time.
Step S21b: according to airborne vehicle to the flight path corresponding in current time unit, future time unit in any one difference in height of vertical direction, it is thus achieved that meet perpendicular separation alarm conditions；
Step S21c: meet cross flying scene, relative flight scene in the horizontal direction according to the flight path of current time unit, future time unit airborne vehicle pair, follow flying scene, parallel flying scene, and according to arranging the course angle theta of the polynary alarm parameter according to two airborne vehicles, relative warning distance d1, follow warning distance d2, parallel warning distance d3Calculate the protection zone of each airborne vehicle egg type, obtain the warning distance d on horizontal plane4, judge the flight path of the airborne vehicle pair of current time unit, future time unit according to the warning distance on horizontal plane, it is thus achieved that horizontal alarm conditions.Referring to Fig. 6 and illustrate that solid line bar represents egg type protection zone of the present invention, Fig. 6 dotted portion illustrates prior art ellipse protection zone, is S from the prior art ellipse protected area shown in Fig. 6Prior art area=π × d4×d3, the present invention can be considered the area S of the protection zone that 2 half elliptics are superimposedbqIt is expressed as:
SArea of the present invention=Sbq=π × (d2+d1)×d3/ 2,
Because of d4=d1>d2, so d4>(d1+d2)/2, obtain SPrior art area>SArea of the present inventionSo Fig. 6 clearly illustrating, the volume of ellipse protection zone is more than the volume of egg type protection zone in the present invention; this shows the present invention optimize in the case of not affecting airborne vehicle safety obtained a kind of than ellipse the protection zone of the least similar egg type, owing to egg type protection zone is little and greatly reduce the generation of false-alarm.
To meeting perpendicular separation alarm conditions and airborne vehicle, the flight path of the multidimensional scene detection airborne vehicle pair of flight posture is met described horizontal alarm conditions according to airborne vehicle, then track flight conflict is effectively alarm, and being unsatisfactory for described horizontal alarm conditions is then false-alarm for track flight conflict.
When two airborne vehicle spacing distances are identical, flight is met and is taken time the shortest in opposite directions, and the required time that meets of flying in the same direction is the longest, and parallel flight then will not be met.So alarm conditions are respectively provided with three kinds of different alarm parameters by three cases above in same level; this embodiment calculates according to practical flight situation; form a protective less than ellipse in the plane; in the case of not affecting safety, decrease protection domain than the method using a kind of alarm parameter to form circular protective, therefore greatly reduce the generation of false-alarm.
The scene simplification alerted by the most all short-term flight collisions is two kinds of situations: parallel alarm scene and non-parallel alarm scene.Using a set of alarm method under parallel alarm scene, under non-parallel alarm scene, the warning distance on the course rational horizontal plane of angle dynamic calculation according to two frame airborne vehicles is to reduce the generation of false-alarm.When carrying out the alarm of non-parallel scene and calculating, should be by after the velocity projections of two frame airborne vehicles to same direction, it is considered to both relative velocities.Both relative velocities are the biggest, and the easiest danger is close, and the warning distance on its horizontal plane should be the biggest；Both relative velocities are the least, then be less susceptible to close, and the warning distance on its horizontal plane should be the least.And both relative velocities and its course angle have obvious relation.
Now the flight posture how judging target is described specifically, wherein the course a of airborne vehicle A represents, the course β of airborne vehicle B represents, course angle θ=| alpha-beta | between two airborne vehicles represents, if θ > 180 °, θ represents with (180-| alpha-beta |):
1). two airborne vehicle relative flight.Angle theta=180 °, course of airborne vehicle A and airborne vehicle B, such as the first situation in Fig. 3.
2). flight followed by two airborne vehicles.Angle theta=0 °, course of airborne vehicle A and airborne vehicle B, such as the second situation in Fig. 3.
3). the two parallel flights of airborne vehicle.The course angle of airborne vehicle A and airborne vehicle B 0 ° < θ < 10 ° or 170 ° < θ < 180 °, the 4th kind of situation as shown in Figure 3.
4). two airborne vehicle cross flyings.The course angle of airborne vehicle A and airborne vehicle B 10 ° < θ < 170 °, such as the third situation in Fig. 3.
After the various situation of flight posture of airborne vehicle is classified, in addition it is also necessary to the most relatively, follow, meaning that parallel and horizontal alarm parameter represents and relatively, follow, parallel three parameters arrange the rule needing to follow in concrete application.
1). warning distance d relatively1It is that two airborne vehicles trigger the relative warning distance that collision alert need to meet when meeting relative flight situation, shown in the first situation in Fig. 5；
2). follow warning distance d2Be two airborne vehicles meet trigger when following flight posture collision alert needs satisfied follow warning distance, shown in the second situation in Fig. 5；
3). parallel warning distance d3It is that two airborne vehicles trigger the parallel warning distance that collision alert needs are satisfied, shown in the 4th kind of situation in Fig. 5 when meeting parallel flight posture；
4). the warning distance d on horizontal plane in intersection alarm4, shown in the third situation in Fig. 5；Warning distance d on horizontal plane4Tried to achieve by formula, by relative, parallel and intersect alarm horizontal plane on warning distance be normalized description:
As can be seen from the above equation:
(1). when two frame airborne vehicle course angle theta are 0,
d4=d2
(2). when two frame airborne vehicle course angle theta are 180,
d4=d1
It is to say, in the present invention relative to alarm scene and the special case following alarm scene actually intersection alarm scene.
Described relative warning distance, follow warning distance, the setting of parallel warning distance parameter: according to the flight level residing for airborne vehicle, different alarm parameters typically can be set, as airborne vehicle is entering near field, general flight speed is little, corresponding alarm parameter also can arrange less than normal, if and airborne vehicle is in tune region, district, owing to flight speed is relatively big, corresponding alarm parameter is also provided with bigger than normal；During two airborne vehicle relative flight, speed of related movement is two airborne vehicle speed additions, following flight speed of related movement with two airborne vehicles is compared with two airborne vehicle speed differences, move identical flying distance, time used by relative flight to be lacked a lot, but no matter which kind of flight posture, the response time leaving controller for is certain, so, relative warning distance is generally set and is greater than and follows warning distance；Parallel warning distance is two airborne vehicles distances in a parallel direction, arranging it is generally required to need the minimum parallel flight interval met to control with reference to two airborne vehicles of this parameter.
Now by airborne vehicle to the place that the inventive method more optimizes than prior art is described as a example by following flying scene:
Assume that existing level warning distance sets MaxS and is set to 50km, i.e. airborne vehicle is adjusted the distance and started when 50km to report to the police；
The inventive method is in addition to 50km according to the flight posture of airborne vehicle pair except warning distance is just set to MaxS, and the following distance MinS increasing airborne vehicle pair is 40km；
Current time unit, a upper unit of time is set as 1s, i.e. each second goes to monitor the flight path information of airborne vehicle pair；
Set airborne vehicle and A, B followed flight, A with B 50km (, front, A is rear for B) apart, flight speed Va of A, B be the flight speed of 200m/s, B be 150m/s, A, B speed difference V is 50m/s.
In prior art, now A, B trigger alarm, set current time as T0；
The time of fire alarming T1 of the present invention is T0≤T1 < T0+ (MaxS-MinS)/V, i.e., T0≤T1 < T0+ (50000-40000)/50, from the foregoing in the case of flight posture is not changed by airborne vehicle the present invention can than prior art the time of late nearly 200 seconds, as the flight posture of airborne vehicle pair during this period has the trend (B machine accelerates or A machine slows down) of separation, then will not produce alarm.
The alarm distance S of the present invention is MinS < S≤MaxS
Send effectively alarm when the time to T+200, effective warning information includes alerting height, course angle, follows warning distance, airborne vehicle to positional information, velocity information, and ground staff is according to warning information adjustment.
Compared with prior art, warning distance calculates according to the flight path information of airborne vehicle pair, and warning distance reduces, it is ensured that decrease false-alarm on the basis of An Quan.
Detect the embodiment 2 of described track flight collision alert:
The concrete steps using described clear for flying height (CFL) to distinguish detection track flight collision alert include:
Step S22a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；
Step S22b: judge to have triggered the airborne vehicle of alarm conditions to one of be provided with clear for flying height and at clear for flying altitude, then track flight conflict is false-alarm；Clear for flying height is not set or flight is not at clear for flying height, then track flight conflict is effectively alarm.
Airborne vehicle is put down and must be flown at level altitude layer rather than arbitrarily fly when flying, and between two adjacent height layers, general spacing is 300 meters.Assume that between two airborne vehicles of default, vertical height alarm spacing parameter is 450 meters, but as long as controller specifies clear for flying height to a certain airborne vehicle, even if this flying height makes perpendicular separation between airborne vehicle and other airborne vehicles, < 450 meters trigger alarm conditions, being also considered as is the special handling mode that controller confirms to produce potential safety hazard under special circumstances, alarm will not show, once airborne vehicle is not held in clear for flying altitude, rising or falling trend, alarm shows at once.Airborne vehicle A puts down at 7800 meters of height layers and flies, and airborne vehicle B begins to decline from 8400 meters, then system just should provide alarm when this aircraft drops to 8250 meters and meets horizontal range alarm conditions.If the CLF that controller have input airborne vehicle B in system is highly 8100 meters, represent controller the most at that time many factors judged, think that now airborne vehicle B does not results in potential safety hazard at this altitude, although system calculates meets alarm conditions between two airborne vehicles, but also will not provide alarm prompt；And once airborne vehicle B has passed through the allowable height of 8100 meters and continued to decline during declining, system provides collision alert prompting at once.
Just as ground traffic, it is to carry out by the instruction of traffic lights under normal circumstances, as long as but have traffic police to command under special circumstances, it should the instruction with traffic police is preferential, also can pass through in the case of red light
Detect the embodiment 3 of described track flight collision alert:
After alarm produces, the concrete steps releasing alarm detection track flight collision alert according to described flight posture include:
Step S23a: obtain a upper unit of time, the flight path of current time unit airborne vehicle pair；
Step S23b: the airborne vehicle triggering alarm conditions is judged a upper unit of time, the flight posture of current time unit airborne vehicle pair to flight path, although standoff distance is also in the range of alarm, but as long as being remote from flight posture and meeting the alarm of setting and cancel distance, then ahead relieving track flight collision alert；The flight path of described airborne vehicle pair is remote from flight posture, and does not meets the alarm of setting away from distance and cancel distance, then confirm that track flight conflict be effectively to alert.
The parameter assuming default is relative flight warning distance 50km, warning distance 30km is released after conflict, two airborne vehicle relative flight on sustained height layer, collision alert is produced when 50km, controller immediately to airborne vehicle to having carried out Coordination Treatment, two airborne vehicles are commanded to change course respectively towards two exactly opposite direction flights, when pilot on two airborne vehicles completes this operation, airborne vehicle between distance be 20km, although airborne vehicle in away from flight posture, but spacing only have 20km, less than releasing warning distance 30km after conflict, now flight collision alarm will not be released from remaining as effectively alarm；Airborne vehicle continues flight in away from flight posture, ahead relieving can alert, and need not wait and also just to release alarm at a distance of 50km in away from after flight posture when 30km.
Detect the embodiment 4 of described track flight collision alert:
Include in the concrete steps of described alarm inhibition zone detection track flight collision alert according to intelligent decision on airdrome scene:
Step S24a: obtain the flight path of current time unit airborne vehicle pair；
Step S24b: obtain airborne vehicle alarm inhibition zone information, compared with alarm inhibition zone information by the flight path of the airborne vehicle pair by triggering alarm conditions, the comparison success in alarm inhibition zone of the flight path of any one airborne vehicle then confirms that track flight conflict is false-alarm, and all comparison unsuccessful then confirmation track flight conflicts in alarm inhibition zone of the flight path of airborne vehicle pair are effectively alarm.
The airborne vehicle spacing distance when airdrome scene is parked or slides is significantly smaller than the parameter that alarm is arranged, therefore one alarm inhibition zone typically can be set in airport scope, aircraft in alarm inhibition zone does not alerts, the airborne vehicle that alarm inhibition zone is only limitted in scene, take off alarm to be calculated in the range of inhibition zone the most at last once leaving ground, therefore crucial be that how to judge the alarm inhibition zone that aircraft is in scene in.Meet three below condition intelligent decision simultaneously and go out airborne vehicle in the range of inhibition zone and in scene:
(1) highly, the height that system uses around airport be QNH (QNH) highly, this height is relative to sea level, so airport height above sea level less than sea level area this be highly probably a negative value, even if the height shown on runway in high altitude localities is likely to be a few km；Therefore being, after aircraft altitude system received carries out QNH correction, to compare with aerodrome elevation in the judgement of height, error is thought without departing from ground within 20 meters.
(2) scope, system can receive simultaneously and process multichannel and monitor signal, owing to the geographical position of all kinds of supervision equipment purposes, function and installation is different, the information obtained has deviation, so have employed multi-source to monitor that airborne vehicle is positioned by data changeable weight optimum Kalman filtering blending algorithm, pay the utmost attention to field prison radar and the signal source of scene multipoint positioning, the geographical position of airborne vehicle is calculated, it may be judged whether in the horizontal extent of alarm inhibition zone in conjunction with the data obtained from secondary radar and ADS-B.
(3) speed, extrapolates the speed of airborne vehicle according to the side-play amount in airborne vehicle geographical position in continuous multiple cycles, thinks less than 50KM/H and does not take off.
Detect the embodiment 5 of described track flight collision alert:
The concrete steps distinguishing detection track flight collision alert according to described secondary code include:
Step S25a: to triggering the airborne vehicle of alarm conditions to flight path comparison, it is thus achieved that the secondary code information of airborne vehicle pair,
Step S25b: if judging that the secondary code information of airborne vehicle pair broadly falls into the scope of secondary code alarm suppression, then confirm that track flight conflict is false-alarm；If at least an airborne vehicle is not belonging to the scope that secondary code alarm suppresses, then confirm that track flight conflict is effectively alarm.
Detect the embodiment 6 of described track flight collision alert:
Concrete steps according to described flight plan detection track flight collision alert include:
Step S26: to triggering the airborne vehicle of alarm conditions to flight path comparison, it is thus achieved that the flight plan information of airborne vehicle pair；
Step S26b: judge that airborne vehicle, to whether having flight plan information, if airborne vehicle is not to all having corresponding flight plan, then confirms that track flight conflict is false-alarm；If at least an airborne vehicle has corresponding flight plan, then confirm that track flight conflict is effectively alarm.
In regulatory area, in addition to normal commercial air flights, it is likely that there will be army's boat training aircraft or navigation operation aircraft, army's boat aircraft is usually into team's flight, and spacing distance is significantly smaller than civil aviaton's alarm parameter；Navigation aircraft, by the plan route flight of oneself, is likely to produce danger close each other.Therefore being made a distinction with non-aircarrier aircraft by aircarrier aircraft, non-aircarrier aircraft does not carry out alarming processing also can the most less false-alarm.Non-aircarrier aircraft alarm mode is suppressed typically to have two kinds:
(1) secondary code suppression, each airborne vehicle can be allocated a secondary code before take-off, the mark of identity is distinguished during as flight, in order to avoid distribution conflict, in the range of the secondary code that each regulatory area can be distributed specifies at one, army's boat, navigation and civil aviaton also have differentiation in range of distribution, therefore can suppress by the method.During army's boat training flight, the secondary code of one group of aircraft is usually continuous print, such as scope A0001-A7777 from secondary code alarm suppression, only in the alarm of system suppresses function, this secondary code section need to be added.In order to avoid when army's boat and aircarrier aircraft conflict, system does not provide alarm prompt, system only can not provide prompting to aircraft alarm each other in secondary code section, aircraft and the outer aircraft of number segment in a number segment it may happen that collision alert system can provide prompting.
(2) Negative Fight Plan flight alarm suppression, each commercial air flights can a corresponding flight plan, the inside includes the flight number of this flight, type, rise and fall all multi information such as airport, and controller is also to command it according to plan information.But army's boat or navigation will not issue civil aviaton flight plan, therefore can judge whether this aircraft is commercial air flights by there being Negative Fight Plan, the airborne vehicle of Negative Fight Plan does not carry out collision alert prompting, the scope that do not alerts is only limitted to both not have between the airborne vehicle of flight plan, and the alarm between an airborne vehicle having flight plan and an airborne vehicle not having flight plan can provide prompting.
Detect the embodiment 7 of described track flight collision alert:
Concrete steps according to distinguishing detection track flight collision alert inside and outside described control sector include:
Step S27a: obtain the flight path of the current time unit of airborne vehicle pair；
Step S27b: judge to have triggered the airborne vehicle of alarm conditions to the affiliated sector in regulatory area, for the sector that affiliated sector is unrelated regarding this track flight collision alert with airborne vehicle as false-alarm, carries out alarm shield when showing in this sector；Track flight conflict then regards as effectively alarm for the affiliated sector of airborne vehicle pair, show in this sector and confirm that track flight conflict is for effectively alerting.
In each regulatory area, according to factors such as area size, flight flow process, flight flows, regulatory area will be divided into multiple sector, each sector can have different controllers to take charge, and this sector that he is also only commanded by controller is responsible for, and the alarm of other sectors is not relevant for.Each airborne vehicle currently affiliated sector can be calculated by information such as the position of airborne vehicle, height and controller's manual operations, trigger the warning information of collision alert airborne vehicle pair only the controller of sector belonging to it to be operated interface and show, and with airborne vehicle, the sector controller that affiliated sector is unrelated be can't see this warning information.The difference required according to various places control, this function can determine whether to enable by a switch option.
Detect the embodiment 8 of described track flight collision alert:
Concrete steps according to described retrieval flight path infomation detection track flight collision alert include:
Step S28a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；
Step S28b: according to current time unit, the flight path of the described airborne vehicle pair of next unit of time, the track flight conflict retrieving record is effectively alarm and the corresponding relation of airborne vehicle flight path pair, then confirm that track flight conflict is effectively alarm, do not retrieve track flight conflict effectively alarm and the corresponding relation of airborne vehicle flight path pair of record, then track flight conflict is false-alarm.
Information is stored by airborne vehicle flight path alarm occur, information according to current aerospace device, the order of classes or grades at school number of such as airborne vehicle, positional information, speed etc. are retrieved, when two airborne vehicle flight paths pair are with the alarm of the flight path pair of storage, the positional information at place mates, and illustrates that this track flight collision alert is non-false alarm, then track flight conflict is effectively alarm；
The embodiment of the above 8 kinds detection alarms is individually to detect false-alarm, i.e. can reach the testing goal of false-alarm.
The embodiment of the above 8 kinds detection alarms can also calculate and obtain to trigger the airborne vehicle pair of alarm conditions based on embodiment 1, judge one by one by embodiment 2-8 again, get rid of false-alarm therein, finally obtain effective alarm of track flight collision alert.
The above; it is only the detailed description of the invention in the present invention, but protection scope of the present invention is not limited thereto, any be familiar with the people of this technology in the technical scope that disclosed herein; it is appreciated that the conversion or replacement expected, all should contain within the scope of the comprising of the present invention.
Claims (3)
1. the optimization method of effective minimizing short-term flight collision alarm false-alarm, it is characterised in that the method comprising the steps of:
Step S1: the multidimensional scene of flight posture calculates the protection zone of an airborne vehicle according to airborne vehicle, produces track flight collision alert when another airborne vehicle enters described protection zone, obtains triggering the airborne vehicle pair of alarm conditions；
Step S2: the airborne vehicle of satisfied triggering alarm conditions used the flight plan combining its correspondence inside and outside vertical direction clear for flying height, flight posture releasing alarm, alarm inhibition zone, secondary code, flight plan, control sector, retrieval flight path data separation mode detects one by one, one of wherein differentiation mode detects that described track flight collision alert is false-alarm i.e. termination detection and judges that this alarm is false-alarm, and each of which distinguishes mode all can not detect that described track flight collision alert is that false-alarm then judges that this alarm is as effectively alarm；Wherein:
The concrete steps using described clear for flying height detection track flight collision alert include: step S22a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Step S22b: judge to have triggered the airborne vehicle of alarm conditions to one of be provided with clear for flying height and at clear for flying altitude, then track flight conflict is false-alarm；Clear for flying height is not set or flight is not at clear for flying height, then track flight conflict is effectively alarm；
The concrete steps releasing alarm detection track flight collision alert according to described flight posture include: step S23a: obtain a upper unit of time, the flight path of current time unit airborne vehicle pair；Step S23b: the airborne vehicle triggering alarm conditions is judged a upper unit of time, the flight posture of current time unit airborne vehicle pair to flight path, although standoff distance is also in the range of alarm, but as long as being remote from flight posture and meeting the alarm of setting and cancel distance, then ahead relieving track flight collision alert；The flight path of described airborne vehicle pair is remote from flight posture, and does not meets the alarm of setting away from distance and cancel distance, then confirm that track flight conflict be effectively to alert；
Concrete steps according to described alarm inhibition zone detection track flight collision alert include: step S24a: obtain the flight path of current time unit airborne vehicle pair；Step S24b: obtain airborne vehicle alarm inhibition zone information, being compared with alarm inhibition zone information by the flight path of the airborne vehicle pair by triggering alarm conditions, the comparison success in alarm inhibition zone of the flight path of any one airborne vehicle then confirms that track flight conflict is false-alarm；The all comparison unsuccessful then confirmation track flight conflicts in alarm inhibition zone of the flight path of airborne vehicle pair are effectively alarm；
Concrete steps according to described secondary code infomation detection track flight collision alert include: step S25a: the flight path comparison to the airborne vehicle pair triggering alarm conditions, it is thus achieved that the secondary code information of airborne vehicle pair；Step S25b: if judging that the secondary code information of airborne vehicle pair broadly falls into the scope of secondary code alarm suppression, then confirm that track flight conflict is false-alarm；If at least an airborne vehicle is not belonging to the scope that secondary code alarm suppresses, then confirm that track flight conflict is effectively alarm；
Concrete steps according to described flight plan detection track flight collision alert include: step S26: to triggering the airborne vehicle of alarm conditions to flight path comparison, it is thus achieved that the flight plan information of airborne vehicle pair；Step S26b: judge that airborne vehicle, to whether having flight plan information, if airborne vehicle is not to all having corresponding flight plan, then confirms that track flight conflict is false-alarm；If at least an airborne vehicle has corresponding flight plan, then confirm that track flight conflict is effectively alarm；
Include according to the concrete steps of shield detection track flight collision alert inside and outside described control sector: step S27a: obtain the flight path of the current time unit of airborne vehicle pair；Step S27b: judge to have triggered the airborne vehicle of alarm conditions to the affiliated sector in regulatory area, for the sector that affiliated sector is unrelated regarding this track flight collision alert with airborne vehicle as false-alarm, carries out alarm shield when showing in this sector；Track flight conflict then regards as effectively alarm for the affiliated sector of airborne vehicle pair, show in this sector and confirm that track flight conflict is for effectively alerting；
Concrete steps according to described retrieval flight path infomation detection track flight collision alert include: step S28a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Step S28b: according to current time unit, the flight path of the described airborne vehicle pair of next unit of time, retrieve the corresponding relation that track flight conflict is effectively alarm and airborne vehicle flight path pair of record, then confirm that track flight conflict is effectively alarm, do not retrieve track flight conflict effectively alarm and the corresponding relation of airborne vehicle flight path pair of record, then track flight conflict is false-alarm.
Method the most according to claim 1, it is characterised in that the step of the airborne vehicle pair that the multidimensional scene of flight posture is calculated triggering alarm conditions based on described airborne vehicle includes:
Step S21a: obtain flight path and the flight path of next unit of time airborne vehicle pair of current time unit airborne vehicle pair；Described route projection to both vertically and horizontally；
Step S21b: according to airborne vehicle to the flight path corresponding in current time unit, future time unit in any one difference in height of vertical direction, it is thus achieved that meet perpendicular separation alarm conditions；
Step S21c: meet cross flying scene, relative flight scene in the horizontal direction according to the flight path of current time unit, future time unit airborne vehicle pair, follow flying scene, parallel flying scene, and according to arranging course angle theta, relative warning distance d1, follow warning distance d2, parallel warning distance d3Calculate the protection zone area S of each airborne vehicle egg typebq=π × (d2+d1)×d3/ 2, obtain the warning distance d of all directions on horizontal plane4=d2+(d1-d2)×θ/180；Judge the flight path of the airborne vehicle pair of current time unit, future time unit according to the warning distance on horizontal plane, meet horizontal alarm conditions.
Method the most according to claim 1, it is characterized in that, to meeting perpendicular separation alarm conditions and airborne vehicle, the flight path of the multidimensional scene detection airborne vehicle pair of flight posture meets described horizontal alarm conditions according to airborne vehicle, then track flight conflict is effectively alarm.
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