JP2004212238A - Abnormal flight reporting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormal flight reporting system which quickly detects an abnormal flight of an aircraft, and allows ground facilities to quickly obtain cockpit situations of an aircraft giving an alarm about an abnormal flight. <P>SOLUTION: An in-flight aircraft continuously monitors by itself a deviation from a prestored flight route and entry into a non-fly zone. When abnormalities are detected, the aircraft gives an alarm signal to automatically inform the ground facilities and, using the alarm signal as a trigger, ensures a communication line between it and the ground facilities to continuously transmit sounds and images in the cockpit to the ground facilities in real time. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an abnormal flight reporting system that detects an abnormal flight during the flight of its own aircraft and notifies a ground facility.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, monitoring of an aircraft position is performed by a method of displaying position information obtained from a radar on a display device for an aircraft located within a coverage area of a radar installed on the ground. Also, for aircraft flying outside the radar area while flying over the ocean, for example, the pilot of the aircraft reports position information obtained by the onboard navigation device to the ground station via a voice communication system, and the air traffic control of the ground station is performed. The government monitors and monitors the position of each aircraft by listening and recording this.
[0003]
Aircraft may deviate from prior flight plans during flight, but this requires the approval of ground controls. For example, if the pilot intentionally flies on a route different from the previous flight plan, such as a detour due to weather conditions on the route, the pilot notifies the ground station air traffic controller to obtain approval for the route change. Also, in the event of an unforeseen situation on the aircraft side, such as an abnormality in aircraft equipment, the pilot will notify the air traffic controller of the ground station to that effect, and both the pilot and the ground facility will cooperate.
[0004]
By the way, an aircraft in flight may deviate from the flight plan without notifying the control agency. In this case, it is considered that some emergency abnormal situation has occurred on the aircraft. That is, normal operation cannot be continued due to the intentional or sudden illness of the pilot, or a case where the operation is not under the pilot's control due to hijacking. In particular, in the case of hijacking, a notification can be made by transmitting a hijacking signal from the aircraft to the control agency, but there have been cases in which it did not function effectively. In such a situation, although it is necessary for the ground facility to quickly know the situation on the aircraft side, there is no means for actively knowing the situation from the ground facility.
[0005]
If the occurrence of such abnormal situations and the understanding of the situation on the ground facilities side are delayed, not only will aircraft not be able to provide adequate support for flight recovery, it will not be possible to take any emergency measures to avoid accidents, resulting in catastrophic disasters. May be connected.
[0006]
For this reason, a technology is disclosed for automatically detecting such a deviation from the flight plan and outputting an alarm for each of the aircraft side and the ground facility side. First, on the aircraft side, a dangerous area is set in advance on a digital map mounted on the aircraft, and when it detects that the aircraft is approaching the dangerous area, an alarm is issued and the pilot is warned. (For example, refer to Patent Document 1). However, in Patent Literature 1, the warning is only issued to the pilot on the aircraft side, and is not reported to the ground facility.
[0007]
Further, on the ground facility side, there is a case where a warning is output when there is a possibility of entering a no-fly zone based on the flight position information from the wake prediction process provided in the aircraft monitoring system (for example, see Patent Document 2). ). However, since the ground facility side detects the abnormality of the wake and determines the occurrence of an abnormality on the aircraft side, the occurrence of the abnormality cannot always be caught quickly, and the occurrence of an abnormal situation also occurs in the device disclosed in Patent Document 2. It cannot be denied that there is a time delay from the output to the alarm output.
[0008]
[Patent Document 1]
JP 2001-266297 A (page 5, FIG. 1)
[0009]
[Patent Document 2]
JP-A-2000-284050 (page 10, FIG. 1)
[0010]
[Problems to be solved by the invention]
For abnormal aircraft flight, it is essential to restore aircraft operations in close cooperation with ground facilities. However, it is often difficult to detect an urgent abnormal flight situation only by monitoring by ground control in a timely manner as described above, and the load on the ground air traffic controller increases. For this reason, there is a means by which the warning for an abnormal flight detected by the aircraft can be automatically reported to the ground facility without fail, and the ground facility can also grasp the specific situation inside the aircraft at the time of the abnormality, especially the situation in the cockpit. Was desired.
[0011]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an abnormal flight notification system that allows the ground facility side to quickly grasp the situation in the cockpit of an aircraft that has issued an abnormal flight warning.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, an abnormal flight notification system according to a first aspect of the present invention includes a storage unit for storing a scheduled flight route of the own aircraft, an own position calculating unit for calculating a current position of the own aircraft, Route departure detecting means for detecting a deviation from the flight path based on a deviation between the own aircraft position calculated by the aircraft position calculating means and the planned flight route stored in the storage means, and a detection result of the route departure detecting means Alarm means for issuing an alarm based on the following, sound acquisition means for acquiring sound and image acquisition means for acquiring an image in the cockpit, alarm issued by the alarm means, and sound in the cockpit acquired by the sound acquisition means And transmitting means for transmitting the image in the cockpit acquired by the image acquiring means to the ground, and when an alarm is generated by the alarm means, the alarm is transmitted by the transmitting means. While report on the ground, after the occurrence of said alarm, characterized in that it successively transmitted by the transmitting means images in the cockpit acquired by voice and the image acquisition means in the cockpit that is acquired by the voice acquisition means.
[0013]
Further, the abnormal flight notification system according to the second aspect of the present invention includes a storage unit for storing a no-fly zone, a self-position calculating unit for calculating a current position of the self-unit, An approach detecting means for detecting entry into the no-fly area based on the distance between the position and the no-fly area stored in the storage means; an alarm means for issuing an alarm based on a detection result by the approach detecting means; A voice obtaining means for obtaining a voice and an image obtaining means for obtaining an image; an alarm issued by the warning means; a sound in the cockpit obtained by the sound obtaining means; and a sound in the cockpit obtained by the image obtaining means. Transmission means for transmitting an image of the above to the ground, and when an alarm is generated by the alarm means, the alarm is notified to the ground by the transmission means, and the alarm is generated. Subsequent generation, characterized by continuously transmitted by said transmitting means images in the cockpit acquired by voice and the image acquisition means in the cockpit that is acquired by the voice acquisition means.
[0014]
According to the present invention, the flying aircraft itself monitors the deviation from the pre-stored scheduled flight route and the approach to the pre-stored no-fly zone, and issues an alarm when detecting an abnormality to notify the ground facility. And automatically transmit the sound and image in the cockpit to the ground facility using this warning as a trigger, so that the situation in the cockpit of the aircraft that issued the warning of abnormal flight can be reported to the ground facility. Can be quickly grasped.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
(First Embodiment)
Hereinafter, a first embodiment of an abnormal flight notification system according to the present invention will be described with reference to FIGS.
[0016]
FIG. 1 is a block diagram showing a first embodiment of the abnormal flight notification system according to the present invention. The abnormal flight report system 1 detects and reports a deviation from a planned flight route stored in advance, and as shown in FIG. 1, an operation unit 11, a planned flight route storage unit 12, a navigation calculation unit 13 , A control unit 14, a warning unit 15, a cockpit sound acquisition unit 16, a cockpit image acquisition unit 17, and a transmission unit 18.
[0017]
The operation unit 11 is an operation panel for a pilot or the like to input a planned flight route and an initial set value of the system. The planned flight route input from the operation unit 11 is stored in the planned flight route storage unit 12. The navigation calculation unit 13 continuously calculates the current position of the own aircraft and navigation errors based on data from various onboard navigation devices, and sends them to the control unit 14.
[0018]
The control unit 14 calculates a distance deviation of the position of the own aircraft from the planned flight route, and when detecting a deviation from the planned flight route, generates a warning signal and sends it to the warning unit 15 and the transmission unit 18. The warning unit 15 notifies the warning signal from the control unit 14 to the pilot by voice and display.
[0019]
The cockpit audio acquisition unit 16 arranged in the cockpit acquires the audio in the cockpit and sends it to the transmission unit 18. The cockpit image acquisition unit 17 is also arranged in the cockpit, captures an image of the inside of the cockpit, and sends the image to the transmission unit 18. The transmission unit 18 automatically transmits an alarm signal from the control unit 14 to the ground facility, and after transmission of the alarm signal, sounds in the cockpit from the cockpit sound acquisition unit 16 and images in the cockpit from the cockpit image acquisition unit 17. Is continuously transmitted to the ground facility.
[0020]
Next, the operation of the abnormal flight notification system according to the first embodiment of the present invention will be described with reference to FIG. 1 described above, the flowchart of FIG. 2 and the explanatory diagram of FIG.
[0021]
First, in the flowchart of FIG. 2, a planned flight route is set before flight. In the present embodiment, the scheduled flight route is an aggregate of a straight line Y indicating the center of the flight route and the route width ± R1. Then, the planned flight route is input from the operation unit 11 and stored in the planned flight route storage unit 12 via the control unit 14 (ST101).
Next, a margin ΔR1 for the distance deviation when judging a deviation from the flight path is set in advance from the operation unit 11. The set margin ΔR1 is stored in control unit 14 (ST102).
[0022]
When the aircraft starts flying, the current position P1 of the own aircraft and the navigation error ΔP1 (ANP value: Actual Navigation Performance) are continuously calculated by the navigation calculation unit 13 based on data from various mounted navigation devices, and control is performed. It is sent to the unit 14 (ST103). The control unit 14 receives the current position P1 of the own aircraft, and determines the deviation from the planned flight route based on the distance deviation from the planned flight route stored in the planned flight route storage unit 12.
[0023]
FIG. 3 is an explanatory diagram showing the relationship between the planned flight route, the current position P1 of the own device, and the distance deviation D1 from the planned flight route of the own device when making this determination. That is, when receiving the current position P1 of the own aircraft from the navigation calculation unit 13, the control unit 14 calculates a distance deviation D1 from the center line Y of the flight route stored in the planned flight route storage unit 12 (ST104). . This distance deviation D1 includes the navigation error ΔP1 of the own aircraft, and the true value is considered to be in the range of D1 ± ΔP1. In the present embodiment, in order to improve the accuracy of the determination, the distance deviation D1 is corrected using the navigation error ΔP1, and D1-ΔP1 is calculated to obtain the corrected distance deviation DD1 (ST105). Then, the corrected distance deviation DD1 is compared with the route width including the margin ΔR1, that is, R1 + ΔR1 (ST106).
[0024]
In this comparison, if the corrected distance deviation DD1 does not exceed the route width (R1 + ΔR1) including the margin (NO in ST106), it is determined that the vehicle does not deviate from the scheduled flight route, and the current position of the own aircraft is monitored. Is continued. However, when the corrected distance deviation DD1 exceeds the route width (R1 + ΔR1) including the margin (YES in ST106), it is determined that the vehicle deviates from the planned flight route, and the control unit 14 transmits the warning unit 15 and transmits the signal. An alarm signal is sent to unit 18 (ST107). Then, the warning signal sent to the warning unit 15 is notified to the pilot by voice and display in the warning unit 15 as a warning of the deviation of the scheduled flight route.
[0025]
On the other hand, when receiving the alarm signal from controller 14, transmitting section 18 first secures a communication line with the ground facility to report the alarm to the ground facility (ST108).
Then, an alarm signal is automatically transmitted to the ground facility via the secured communication line, and a notification that a deviation from the scheduled flight route is detected on the aircraft (ST109).
[0026]
Further, after reporting the abnormal flight, the transmission unit 18 transmits the specific situation in the aircraft, that is, the audio in the cockpit acquired by the cockpit audio acquisition unit 16 and the image in the cockpit acquired by the cockpit image acquisition unit 17, Continuous transmission is performed in real time to the ground facility via the secured communication line (ST110).
[0027]
In the above-described first embodiment of the present invention, the flying aircraft itself continuously monitors the distance deviation between the pre-stored planned flight route and the current position of the own aircraft, and deviates from the planned flight route. Is detected, an abnormal signal detected by the aircraft can be promptly notified to the ground facility by automatically reporting the alarm signal to the ground facility. In addition to the automatic alarm notification, the cockpit status is continuously transmitted to the ground facility in real time using sound and images, and the ground facility side issues the in-flight condition of the aircraft that issued the abnormal flight warning. Can be grasped concretely.
[0028]
In the present embodiment, the deviation from the current position of the own aircraft is determined, but the deviation from the estimated position of the own aircraft after a predetermined time estimated from the flight direction and the speed of the own aircraft may be determined. good.
[0029]
(Second embodiment)
Hereinafter, a second embodiment of the abnormal flight notification system according to the present invention will be described with reference to FIGS.
[0030]
FIG. 4 is a block diagram showing a second embodiment of the abnormal flight notification system according to the present invention. The abnormal flight reporting system 2 detects and reports the entry into a no-fly zone previously stored, and as shown in FIG. 4, a no-fly zone storage unit 21, a navigation calculation unit 22, and a control unit 23. , An alarm unit 24, a cockpit sound acquisition unit 25, a cockpit image acquisition unit 26, and a transmission unit 27.
[0031]
The no-fly space storage unit 21 stores in advance a no-fly space defined as a circular air space having a specific center coordinate and a specific radius as a database. The navigation calculation unit 22 continuously calculates the current position of the own aircraft and navigation errors based on data from various onboard navigation devices, and sends them to the control unit 23.
[0032]
The control unit 23 obtains the shortest distance between the position of the own aircraft and the no-fly zone, and when detecting entry into the no-fly zone, generates a warning signal and sends it to the warning unit 24 and the transmission unit 27. The warning unit 24 notifies the pilot signal of the warning signal from the control unit 23 by voice and display.
[0033]
The cockpit audio acquisition unit 25 arranged in the cockpit acquires the audio in the cockpit and sends it to the transmission unit 27. The cockpit image acquisition unit 26 is also arranged in the cockpit, captures an image of the cockpit, and sends the image to the transmission unit 27. The transmission unit 27 automatically transmits the alarm signal from the control unit 23 to the ground facility, and after the transmission of the alarm signal, the sound in the cockpit from the cockpit sound acquisition unit 25 and the sound in the cockpit from the cockpit image acquisition unit 26. Transmit images continuously to ground facilities.
[0034]
Next, the operation of the abnormal flight notification system according to the above-described second embodiment of the present invention will be described with reference to the above-described FIG. 4, the flowchart of FIG. 5, and the explanatory diagram of FIG.
[0035]
First, in the flowchart of FIG. 5, when the aircraft starts flying, the navigation calculation unit 22 calculates the current position P2 of the own aircraft and the navigation error ΔP2 (ANP value: Actual Navigation Performance) based on data from various on-board navigation devices. Are continuously calculated and sent to the control unit 23 (ST201). The control unit 23 receives the current position P2 of the own aircraft, and determines entry into the no-fly zone based on the distance from the no-fly zone stored in the no-fly zone storage unit 21.
[0036]
The operation at the time of making this determination will be further described with reference to the explanatory diagram of FIG. FIG. 6 is an explanatory diagram showing the relationship between the no-fly zone, the current position P2 of the own aircraft, and the distance D2 between the own aircraft and the no-fly zone. In the present embodiment, the flight prohibited airspace preset in the flight prohibited airspace storage unit 21 is defined by a circle having a center position C and a radius R2.
[0037]
Upon receiving the current position P2 of the own aircraft from the navigation calculation unit 22, the control unit 23 calculates the distance D2 between the center C of the no-fly airspace stored in the no-fly airspace storage unit 21 and the own aircraft (ST202). ). This distance D2 includes the navigation error ΔP2 of the own aircraft, and the true value is considered to be in the range of D2 ± ΔP2. In the present embodiment, in order to increase the accuracy of the determination, the distance D2 is corrected using the navigation error ΔP2, and D2-ΔP2 is calculated to be the corrected distance DD2 (ST203). Then, the corrected distance DD2 is compared with the radius R2 of the no-fly zone (ST204).
[0038]
In this comparison, if the corrected distance DD2 is larger than the radius R2 of the no-fly zone (NO in ST204), it is determined that the vehicle has not entered the no-fly zone, and monitoring of the current position of the own device is continued. However, if the corrected distance DD2 is equal to or smaller than the radius R2 in the no-fly zone (YES in ST204), it is determined that the vehicle has entered the no-fly zone, and the control unit 23 sends the warning unit 24 and the transmission unit 27 An alarm signal is transmitted (ST205). Then, the warning signal sent to the warning unit 24 is notified to the pilot by voice and display as a warning of entry into the no-fly zone in the warning unit 24.
[0039]
On the other hand, when receiving a warning signal from controller 23, transmitting section 27 first secures a communication line with the ground facility to notify a warning to the ground facility (ST206).
Then, an alarm signal is automatically transmitted to the ground facility via the secured communication line, and a notification that entry into the no-fly zone is detected on the aircraft (ST207).
[0040]
Further, after reporting the abnormal flight, the transmission unit 27 transmits the specific situation in the aircraft, that is, the audio in the cockpit acquired by the cockpit audio acquisition unit 25, and the image in the cockpit acquired by the cockpit image acquisition unit 26, Continuous transmission is performed in real time to the ground facility via the secured communication line (ST208).
[0041]
In the above-described second embodiment of the present invention, the flying aircraft itself continuously monitors the distance between the flight-prevented airspace stored in advance and the current position of the aircraft itself, and makes an approach to the flight-prohibited airspace. When it is detected, the abnormal signal detected on the aircraft side can be promptly reported to the ground facility by automatically reporting the warning signal to the ground facility. In addition to the automatic alarm notification, the cockpit status is continuously transmitted to the ground facility in real time using sound and images, so that the ground facility side can identify the in-flight condition of the aircraft that issued the abnormal flight warning. Can be grasped.
[0042]
In the present embodiment, the no-fly area is defined as a circular air area having specific center coordinates and a specific radius, but may be defined as an air area of any shape.
[0043]
In the first and second embodiments of the present invention described above, the communication means with the ground facility is a digital communication such as a VDL (VHF Digital Link) or a mode S used in an ATC transponder. It may be a line.
[0044]
【The invention's effect】
According to the present invention, an abnormal flight detected by the flying aircraft itself is automatically notified to the ground facility side, and after this notification, voice and images in the cockpit are continuously transmitted to the ground facility side in real time. As a result, the ground facility can quickly recognize the aircraft during the abnormal flight, and can also specifically grasp the situation in the cockpit. Therefore, the ground facility can promptly take necessary countermeasures against the occurring abnormal flight situation.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a first embodiment of an abnormal flight notification system according to the present invention.
FIG. 2 is a flowchart for explaining the operation of the abnormal flight notification system of FIG. 1;
FIG. 3 is an explanatory diagram showing a relationship between a planned flight route, a current position of the own aircraft, and a distance deviation from the planned flight route of the own aircraft in the abnormal flight notification system of FIG. 1;
FIG. 4 is a block diagram showing a second embodiment of the abnormal flight notification system according to the present invention.
FIG. 5 is a flowchart for explaining the operation of the abnormal flight notification system of FIG. 4;
FIG. 6 is an explanatory diagram showing a relationship between a no-fly zone, a current position of the own aircraft, and a distance between the own aircraft and the no-fly zone in the abnormal flight notification system of FIG. 4;
[Explanation of symbols]
1, 2 Abnormal flight notification system 11 Operation unit 12 Scheduled flight route storage unit 13, 22 Navigation calculation unit 14, 23 Control unit 15, 24 Alarm unit 16, 25 Cockpit sound acquisition unit 17, 26 Cockpit image acquisition unit 18, 27 Transmission Part 21 Flight prohibited airspace storage

Claims (2)

Storage means for storing the scheduled flight route of the aircraft;
Own device position calculating means for calculating the current position of the own device,
Route deviation detecting means for detecting a deviation from a flight path based on a deviation between the own position calculated by the own position calculating means and the planned flight path stored in the storage means;
Alarm means for issuing an alarm based on the detection result of the route deviation detection means,
In the cockpit, audio acquisition means for acquiring audio and image acquisition means for acquiring an image,
An alarm issued by the alarm unit, a sound in the cockpit obtained by the sound obtaining unit, and a transmitting unit for transmitting an image in the cockpit obtained by the image obtaining unit to the ground,
When an alarm is generated by the alarm unit, the alarm is notified to the ground by the transmission unit, and after the alarm is generated, the sound in the cockpit obtained by the sound obtaining unit and the image in the cockpit obtained by the image obtaining unit are displayed. An abnormal flight notification system, wherein the transmission unit continuously transmits the information. Storage means for storing a no-fly zone;
Own position calculating means for calculating the current position of the own device,
Based on the distance between the own aircraft position calculated by the own aircraft position calculating unit and the no-fly zone stored in the storage unit, an entry detecting unit that detects entry into the no-fly zone;
Warning means for issuing a warning based on the detection result by the approach detection means;
In the cockpit, audio acquisition means for acquiring audio and image acquisition means for acquiring an image,
An alarm issued by the alarm unit, a sound in the cockpit obtained by the sound obtaining unit, and a transmitting unit for transmitting an image in the cockpit obtained by the image obtaining unit to the ground,
When an alarm is generated by the alarm unit, the alarm is notified to the ground by the transmission unit, and after the alarm is generated, the sound in the cockpit obtained by the sound obtaining unit and the image in the cockpit obtained by the image obtaining unit are displayed. An abnormal flight notification system, wherein the transmission unit continuously transmits the information.

Images