CN105528915A - Helicopter fore-sight prediction false alarm inhibition method based on condition triggering - Google Patents
Helicopter fore-sight prediction false alarm inhibition method based on condition triggering Download PDFInfo
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- CN105528915A CN105528915A CN201510871141.5A CN201510871141A CN105528915A CN 105528915 A CN105528915 A CN 105528915A CN 201510871141 A CN201510871141 A CN 201510871141A CN 105528915 A CN105528915 A CN 105528915A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
- G08G5/0073—Surveillance aids
- G08G5/0086—Surveillance aids for monitoring terrain
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Abstract
The invention relates to a helicopter fore-sight prediction false alarm inhibition method based on condition triggering. The method comprises following steps: operation condition information of helicopter terrain awareness and warning system (HTAWS) is obtained; whether the helicopter terrain awareness and warning system (HTAWS) is at normal operation or not is determined; if the helicopter terrain awareness and warning system (HTAWS) is at normal operation, a warning inhibition logic operation method is enabled to inhibit false alarm; if the helicopter terrain awareness and warning system (HTAWS) is at abnormal operation, the warning inhibition logic operation method is disabled. The provided method is advantageous in that, by use of the method, terrains or obstacle alarm sources which will not bring actual threat to a flight are eliminated; the method is flexible in coping with multiple flight conditions; interference in normal operations of a flight crew is reduced, and reliability is increased.
Description
Technical field
The present invention relates to the alarm of helicopter forward sight, be specifically related to a kind of helicopter forward sight prediction false alarm rejection method that condition triggers.
Background technology
Along with helicopter is in the increasingly extensive application of China's all trades and professions, also day by day urgent to the reliability requirement of helicopter-carried land form consciousness and warning system (HTAWS).The task type that helicopter is changeable, lower flying height, is vulnerable to the feature of IFR conditions impact, all determine HTAWS avoid helicopter controllable flight to hit the vital role in (CFIT).At present, HTAWS system immediately flies ginseng information formation alarm envelope mainly through inputting in forward sight prediction, compares judge whether to there is CFIT risk with topographic database.The above-mentioned ginseng information that flies only relates to helicopter self-condition, lacks ambient conditions and the judgement in aerial mission stage.Under complicated flying condition, easily produce false-alarm, interference normal flight operations, affects the reliability of crew to this system.
Summary of the invention
The object of the invention is to solve helicopter-carried land form consciousness and warning system (HTAWS) in prior art and easily occur the problem that false-alarm is reported by mistake, a kind of helicopter forward sight prediction false alarm rejection method providing novel condition to trigger.
To achieve these goals, technical scheme of the present invention is achieved in that and it is characterized in that a kind of helicopter forward sight prediction false alarm rejection method that condition triggers, include,
Obtain the running state information of helicopter-carried land form consciousness and warning system (HTAWS);
Judge that helicopter-carried land form is realized and warning system (HTAWS) is current whether normally to run;
Be in normal operation if helicopter-carried land form is realized and warning system (HTAWS) is current, then enable alarm and suppress logical calculation method to suppress false-alarm;
Be in abnormal running if helicopter-carried land form is realized and warning system (HTAWS) is current, then do not enable alarm and suppress logical calculation method.
As the preferred version of a kind of helicopter forward sight prediction false alarm rejection method that condition triggers, described alarm suppresses logical calculation method, includes,
Alarm is provided to suppress threshold value final value;
Judge whether helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm;
If helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm, then compare elevation soprano and alarm in all terrain data library blocks of helicopter-carried land form consciousness and warning system (HTAWS) internal trigger alarm and suppress the size of threshold value final value, if elevation soprano does not exceed alarm and suppresses threshold value final value in all terrain data library blocks, then suppress alarm, if elevation highest region person exceedes forward sight prediction false alarm rejection threshold value final value, then outputting alarm;
If helicopter front does not have landform or barrier to invade within the scope of forward sight prediction alarm, then not outputting alarm.
As the preferred version of a kind of helicopter forward sight prediction false alarm rejection method that condition triggers, provide alarm to suppress threshold value final value, include,
Obtain the current instant ground velocity of helicopter and geometric height information, according to the transfer function preset, provide the first alarm suppression threshold value initial value of two independent variable changes and change accordingly;
Obtain current position, airport and runway heading information, according to the position, airport of establishing in topographic database and runway heading, judge whether helicopter is in the mission phase being about to landing; If so, the second alarm is provided to print threshold value initial value accordingly;
Obtain the duty of current helicopter flight management system (FMS), judge that helicopter is current and whether be in inside the plan state of flight, if so, then provide the 3rd alarm to suppress threshold value initial value accordingly;
According to the priority list preset, get the first alarm and suppress threshold value initial value, the second alarm suppression threshold value initial value and the 3rd alarm to suppress height reckling in threshold value initial value to suppress threshold value final value as alarm.
Compared with prior art, advantage of the present invention at least comprises following: get rid of landform or the barrier alarm source that can not produce actual threat to flight, can tackle multiple flight progress flexibly, reduce the interference to crew's normal running, improve fiduciary level.
Accompanying drawing explanation
Fig. 1 is the logical flow chart of one embodiment of the invention.
Fig. 2 is the envelope process schematic diagram of one embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
See being a kind of helicopter forward sight prediction false alarm rejection method that condition triggers shown in Fig. 1 and 2, figure, include following steps,
S1: the running state information obtaining helicopter-carried land form consciousness and warning system (HTAWS).
S2: judge that helicopter-carried land form is realized and warning system (HTAWS) is current and whether normally run.
S3: be in normal operation if helicopter-carried land form is realized and warning system (HTAWS) is current, then enable S4 alarm and suppress logical calculation method to suppress false-alarm.
If helicopter-carried land form consciousness and current being in abnormal running of warning system (HTAWS) (are in total alarm holddown or do not work), then do not enable alarm and suppress logical calculation method.
Wherein, S4: described alarm suppresses logical calculation method, includes,
S41: provide alarm to suppress threshold value final value.Wherein, provide alarm to suppress threshold value final value, include,
S411, in each computation period, from airborne Aerial Electronic Equipment, obtains the instant ground velocity of current helicopter and geometric height information, according to the transfer function preset, provides the first alarm suppression threshold value initial value of two independent variable changes and change accordingly.If the instant ground velocity of helicopter and geometric height are in beyond transfer function, then do not generate the first alarm and suppress threshold value initial value, or be defined as 0.
S412, in each computation period, from airborne Aerial Electronic Equipment, obtains current position, airport and runway heading information, according to the position, airport of establishing in topographic database and runway heading, judges whether helicopter is in the mission phase being about to landing; If so, the second alarm is provided to print threshold value initial value accordingly.If not, then do not generate the second alarm and suppress threshold value initial value, or be defined as 0.
S413, in each computation period, obtains the duty of current helicopter flight management system (FMS), judges that helicopter is current and whether be in inside the plan state of flight, if so, then provides the 3rd alarm to suppress threshold value initial value accordingly.If not, then do not generate the 3rd alarm and suppress threshold value initial value, or be defined as 0.
S414, according to the priority list preset, gets the first alarm and suppresses threshold value initial value, the second alarm suppression threshold value initial value and the 3rd alarm to suppress height reckling in threshold value initial value to suppress threshold value final value as alarm.
S42: judge whether helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm.
S43: if helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm, then compare elevation soprano and alarm in all terrain data library blocks of helicopter-carried land form consciousness and warning system (HTAWS) internal trigger alarm and suppress the size of threshold value final value, if elevation soprano does not exceed alarm and suppresses threshold value final value in all terrain data library blocks, then suppress alarm, if elevation highest region person exceedes forward sight prediction false alarm rejection threshold value final value, then outputting alarm.
If helicopter front does not have landform or barrier to invade within the scope of forward sight prediction alarm, then not outputting alarm.
Using method is as follows: alarm suppressed logical calculation method with the encapsulation of software module form, be embedded in HTAWS system master routine.
Below only have expressed embodiments of the present invention, it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (3)
1. the helicopter forward sight that condition triggers predicts a false alarm rejection method, it is characterized in that, includes,
Obtain the running state information of helicopter-carried land form consciousness and warning system (HTAWS);
Judge that helicopter-carried land form is realized and warning system (HTAWS) is current whether normally to run;
Be in normal operation if helicopter-carried land form is realized and warning system (HTAWS) is current, then enable alarm and suppress logical calculation method to suppress false-alarm;
Be in abnormal running if helicopter-carried land form is realized and warning system (HTAWS) is current, then do not enable alarm and suppress logical calculation method.
2. the helicopter forward sight that a kind of condition according to claim 1 triggers predicts false alarm rejection method, and it is characterized in that, described alarm suppresses logical calculation method, includes,
Alarm is provided to suppress threshold value final value;
Judge whether helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm;
If helicopter front has landform or barrier to invade within the scope of forward sight prediction alarm, then compare elevation soprano and alarm in all terrain data library blocks of helicopter-carried land form consciousness and warning system (HTAWS) internal trigger alarm and suppress the size of threshold value final value, if elevation soprano does not exceed alarm and suppresses threshold value final value in all terrain data library blocks, then suppress alarm, if elevation highest region person exceedes forward sight prediction false alarm rejection threshold value final value, then outputting alarm;
If helicopter front does not have landform or barrier to invade within the scope of forward sight prediction alarm, then not outputting alarm.
3. the helicopter forward sight that a kind of condition according to claim 2 triggers predicts false alarm rejection method, provides alarm to suppress threshold value final value, includes,
Obtain the current instant ground velocity of helicopter and geometric height information, according to the transfer function preset, provide the first alarm suppression threshold value initial value of two independent variable changes and change accordingly;
Obtain current position, airport and runway heading information, according to the position, airport of establishing in topographic database and runway heading, judge whether helicopter is in the mission phase being about to landing; If so, the second alarm is provided to print threshold value initial value accordingly;
Obtain the duty of current helicopter flight management system (FMS), judge that helicopter is current and whether be in inside the plan state of flight, if so, then provide the 3rd alarm to suppress threshold value initial value accordingly;
According to the priority list preset, get the first alarm and suppress threshold value initial value, the second alarm suppression threshold value initial value and the 3rd alarm to suppress height reckling in threshold value initial value to suppress threshold value final value as alarm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105844972A (en) * | 2016-05-24 | 2016-08-10 | 南京航空航天大学 | Warning method for forward-looking terrain of helicopter |
| CN106628207A (en) * | 2016-11-25 | 2017-05-10 | 上海航空电器有限公司 | Ground proximity warning system alarm inhibition method |
| CN111540239A (en) * | 2020-04-03 | 2020-08-14 | 北京安达维尔航空设备有限公司 | Helicopter terrain sensing and alarming method and system based on data fusion |
| CN111551149A (en) * | 2020-04-24 | 2020-08-18 | 中国航空无线电电子研究所 | Calculation method suitable for aircraft geometric height |
| CN112017481A (en) * | 2020-09-11 | 2020-12-01 | 中国航空工业集团公司雷华电子技术研究所 | Helicopter self-adaptive forward-looking warning method and device and helicopter |
| CN114093202A (en) * | 2021-11-23 | 2022-02-25 | 中国航空无线电电子研究所 | Terrain awareness and warning system |
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| CN102737525A (en) * | 2012-06-28 | 2012-10-17 | 上海交通大学 | Method for generating warning envelope curve of helicopter terrain awareness and warning system |
| US20120303252A1 (en) * | 2011-05-27 | 2012-11-29 | Avidyne Corporation | Database augmented surveillance |
| CN103903481A (en) * | 2012-12-26 | 2014-07-02 | 上海航空电器有限公司 | Design method for threshold value and envelop wire of near-earth alarm system |
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| US20120303252A1 (en) * | 2011-05-27 | 2012-11-29 | Avidyne Corporation | Database augmented surveillance |
| CN102737525A (en) * | 2012-06-28 | 2012-10-17 | 上海交通大学 | Method for generating warning envelope curve of helicopter terrain awareness and warning system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105844972A (en) * | 2016-05-24 | 2016-08-10 | 南京航空航天大学 | Warning method for forward-looking terrain of helicopter |
| CN105844972B (en) * | 2016-05-24 | 2018-05-18 | 南京航空航天大学 | A kind of helicopter forward sight landform alarm method |
| CN106628207A (en) * | 2016-11-25 | 2017-05-10 | 上海航空电器有限公司 | Ground proximity warning system alarm inhibition method |
| CN106628207B (en) * | 2016-11-25 | 2022-05-24 | 上海航空电器有限公司 | Alarm suppression method for ground proximity alarm system |
| CN111540239A (en) * | 2020-04-03 | 2020-08-14 | 北京安达维尔航空设备有限公司 | Helicopter terrain sensing and alarming method and system based on data fusion |
| CN111540239B (en) * | 2020-04-03 | 2021-07-27 | 北京安达维尔航空设备有限公司 | Helicopter terrain sensing and alarming method and system based on data fusion |
| CN111551149A (en) * | 2020-04-24 | 2020-08-18 | 中国航空无线电电子研究所 | Calculation method suitable for aircraft geometric height |
| CN111551149B (en) * | 2020-04-24 | 2022-05-20 | 中国航空无线电电子研究所 | Calculation method suitable for airplane geometric height |
| CN112017481A (en) * | 2020-09-11 | 2020-12-01 | 中国航空工业集团公司雷华电子技术研究所 | Helicopter self-adaptive forward-looking warning method and device and helicopter |
| CN114093202A (en) * | 2021-11-23 | 2022-02-25 | 中国航空无线电电子研究所 | Terrain awareness and warning system |
| CN114093202B (en) * | 2021-11-23 | 2024-03-15 | 中国航空无线电电子研究所 | Terrain awareness and warning system |
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