JPH0993566A - In-aircraft monitor system - Google Patents
In-aircraft monitor systemInfo
- Publication number
- JPH0993566A JPH0993566A JP7242212A JP24221295A JPH0993566A JP H0993566 A JPH0993566 A JP H0993566A JP 7242212 A JP7242212 A JP 7242212A JP 24221295 A JP24221295 A JP 24221295A JP H0993566 A JPH0993566 A JP H0993566A
- Authority
- JP
- Japan
- Prior art keywords
- aircraft
- flight
- video
- signal
- image transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Closed-Circuit Television Systems (AREA)
- Alarm Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、飛行機等の機内監視シ
ステムに係わり、特に、ハイジャック等の非常時は、管
制塔等から機内を監視し、平常時は機内から空港内をモ
ニタできるものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-flight monitoring system for airplanes, etc., and more particularly, it can monitor the in-flight from a control tower or the like in an emergency such as hijacking, and can monitor the in-airport from the in-flight during normal times. Regarding
【０００２】[0002]
【従来の技術】従来、飛行機等の機内と、管制塔等の機
外との通信は、無線による音声通信に頼っており、映像
の通信はＴＶ等一方通行の通信であり、機内の映像を通
信できるものはなかった。しかし、近年、ハイジャック
等の非常時には、機内の状況を映像にて確認したいとい
う強い要求が出てきている。2. Description of the Related Art Conventionally, communication between the inside of an airplane or the like and the outside of a control tower or the like has relied on wireless voice communication, and image communication is one-way communication such as TV, and the image inside the airplane is There was nothing to communicate with. However, in recent years, in an emergency such as hijacking, there has been a strong demand to check the situation inside the aircraft with a video.
【０００３】[0003]
【発明が解決しようとする課題】本発明は以上述べた問
題点を解決し、平常時は機内から空港内をモニタでき、
ハイジャック等の非常時には、機外から制御して機内の
状況を映像で確認できる機内監視システムを提供するこ
とを目的としている。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and it is possible to monitor the inside of an airport from the plane during normal times.
It is an object of the present invention to provide an in-flight monitoring system that can be controlled from outside the aircraft to check the inside of the aircraft with an image in an emergency such as hijacking.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、機内および機外には、複数の所定の場所に
配置したカメラおよびマイクからの映像信号および音声
信号を切り換えて出力する映像／音声切換装置と、前記
各カメラおよび同場所に配置する旋回装置等を選択制御
するカメラ制御装置と、前記映像／音声切換装置よりの
映像信号および音声信号と、後述の無線画像伝送装置よ
りの復調映像信号および復調音声信号とを選択してモニ
タおよびスピーカー等に出力するセレクタと、該セレク
タよりの映像信号を表示する前記モニタと、前記セレク
タよりの音声信号を出力する前記スピーカーまたはヘッ
ドホーンと、前記各装置を制御する主制御装置と、前記
映像／音声切換装置よりの映像信号および音声信号を各
々データ圧縮等のデータ処理をして多重化し、所定の通
信方式に変換して無線で相互通信する機内無線画像伝送
装置または、機外無線画像伝送装置を備えた。また、前
記機内無線画像伝送装置および機外無線画像伝送装置
は、映像信号、音声信号の他に制御信号を多重化して相
互通信するようにし、機内、または機外より機外または
機内の無線画像伝送装置に接続する前記主制御装置を制
御することにより、旋回装置の制御、カメラの切り換え
制御、映像の送出制御等の制御を行うようにした。ま
た、機内に備える前記主制御装置は、操作部と制御部と
からなり、操作部は、コックピット以外に、シュチュワ
ーデスの控え室にも配置した。また、機外に備える前記
主制御装置は、操作部と制御部とからなり、操作部は、
航空管制塔以外に、所定の保安員控え室等にも配置し
た。また、前記機内に備える主制御装置は、航空管制塔
等の機外に備える無線画像伝送装置に接続する制御装置
から制御することにより、機内での操作を一部不可とな
るようにした。In order to solve the above-mentioned problems, the present invention switches and outputs video signals and audio signals from cameras and microphones arranged at a plurality of predetermined locations inside and outside the machine. A video / audio switching device, a camera control device for selectively controlling each of the cameras and a turning device arranged at the same place, a video signal and an audio signal from the video / audio switching device, and a wireless image transmission device described later. Selector for selecting the demodulated video signal and the demodulated audio signal and outputting them to a monitor and a speaker, the monitor for displaying the video signal from the selector, and the speaker or the headphone for outputting the audio signal from the selector. And a main control device for controlling each of the above-mentioned devices and a video signal and an audio signal from the above-mentioned video / audio switching device, respectively, such as data compression. Multiplexed by the over data processing, in-flight wireless image transmission device or intercommunicate wirelessly into a predetermined communication method, comprising the outside wireless image transmission device. In addition, the in-flight wireless image transmission device and the out-of-flight wireless image transmission device are configured to multiplex a control signal in addition to a video signal and an audio signal to mutually communicate with each other, and a wireless image outside or inside the aircraft from inside or outside the aircraft. By controlling the main control device connected to the transmission device, control of the turning device, camera switching control, video transmission control, and the like are performed. Further, the main control device provided in the aircraft is composed of an operation unit and a control unit, and the operation unit is arranged not only in the cockpit but also in the stewardess waiting room. Further, the main control device provided outside the aircraft is composed of an operation unit and a control unit, and the operation unit is
In addition to the air traffic control tower, it was also placed in the designated security room. Further, the main control device provided inside the aircraft is controlled by a control device connected to a wireless image transmission device provided outside the aircraft such as an air traffic control tower so that the operation inside the aircraft is partially disabled.
【０００５】[0005]
【作用】以上のように構成したので、本発明の機内監視
システムによれば、平常時は空港内のもようを写し出す
カメラからの信号を無線画像伝送装置を介して空港に到
着した飛行機等の機内のスチュワーデス控え室より制御
して受信し、客席に配置するモニタ画面で見ることがで
き、ハイジャック等の非常時には、管制塔等の機外から
無線画像伝送装置を介して機内の主制御装置を制御して
機内からの制御を一部不可とすると共に、機内のカメ
ラ、旋回装置等を機外から制御することにより、ハイジ
ャック犯人等の映像や、機内の状況を犯人に知られずに
的確に掴むことができる。With the above construction, according to the in-flight monitoring system of the present invention, a signal from a camera that shows the inside of an airport in a normal state can be transmitted to an airplane or the like arriving at the airport via a wireless image transmission device. It can be controlled and received from the stewardess waiting room in the aircraft, and can be viewed on the monitor screen placed in the passenger seat.In an emergency such as hijacking, the main control unit in the aircraft can be accessed from outside the aircraft such as the control tower via the wireless image transmission device. By controlling it to partially disable the control from inside the aircraft and controlling the camera, turning device, etc. inside the aircraft from outside the aircraft, the hijacker's image and the situation inside the aircraft can be accurately known without being known to the criminal. You can grab it.
【０００６】[0006]
【実施例】以下、図面に基づいて本発明による機内監視
システムを詳細に説明する。図１は本発明による機内監
視システムの一実施例を示すシステムブロック図であ
る。図において、１はマイク、２は監視用カメラ、３は
旋回装置で、機内においては、各客室ブロック、スチュ
ワーデス控え室、コックピット等の所定の場所に配置
し、機外においては、航空管制塔、空港ロビー、保安室
等の所定の場所に配置している。４は映像／音声切換装
置で、前記複数のマイク１、カメラ２からの音声信号お
よび映像信号を選択切り換えして出力している。５はカ
メラ制御装置で、カメラのズーミング、旋回装置の旋回
等の制御を行っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An in-flight monitoring system according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a system block diagram showing an embodiment of an in-flight monitoring system according to the present invention. In the figure, 1 is a microphone, 2 is a surveillance camera, 3 is a turning device, and is arranged in a predetermined location such as each passenger room block, stewardess waiting room, cockpit, etc. inside the aircraft, and outside the aircraft, an air traffic control tower, an airport It is located in a designated area such as the lobby and security room. A video / audio switching device 4 selectively switches the audio signals and the video signals from the plurality of microphones 1 and the camera 2 and outputs them. Reference numeral 5 denotes a camera control device, which controls the zooming of the camera and the turning of the turning device.
【０００７】６は無線画像伝送装置で、機内と機外に配
置し、音声信号、映像信号、制御信号をデータ圧縮して
多重化し、所定の通信方式にて無線で通信し、元の音声
信号、映像信号、制御信号を復調している。７はセレク
タで、前記無線画像伝送装置６よりの復調した音声信号
および映像信号と、前記映像／音声切換装置４よりの音
声信号および映像信号を選択して所定のモニタ８および
スピーカー９に出力している。８は前記モニタ、９は前
記スピーカーである。１０は主制御装置で、少なくとも
１個の操作部１０ａと制御部１０ｂとでなり、この操作
部１０ａよりの操作信号または前記無線画像伝送装置６
よりの制御信号に基づいて前記各装置を制御している。
また、機内に配置する主制御装置１０は機外からの制御
信号により操作部１０ａよりの入力を一部禁止すること
ができるようになっている。１１は複数配置するアンテ
ナである。Reference numeral 6 denotes a wireless image transmission device, which is disposed inside and outside the machine, and compresses and multiplexes audio signals, video signals, and control signals, and wirelessly communicates by a predetermined communication system to obtain the original audio signal. , Video signals and control signals are demodulated. A selector 7 selects the demodulated audio signal and video signal from the wireless image transmission device 6 and the audio signal and video signal from the video / audio switching device 4 and outputs them to a predetermined monitor 8 and speaker 9. ing. 8 is the monitor, and 9 is the speaker. Reference numeral 10 denotes a main control device, which is composed of at least one operation unit 10a and a control unit 10b. An operation signal from the operation unit 10a or the wireless image transmission device 6 is used.
The respective devices are controlled based on the control signal.
Further, the main controller 10 arranged inside the machine can partially prohibit the input from the operation unit 10a by a control signal from outside the machine. A plurality of antennas 11 are arranged.
【０００８】図２は前記無線画像伝送装置６の詳細ブロ
ック図を示している。図において、６ａはデータ処理部
で、カメラ２等よりの映像信号をデジタル信号に変換
し、データ圧縮して出力するとともに、圧縮された映像
データを伸長してアナログ信号に変換して元の映像信号
を出力する画像圧伸部６１と、マイク１等よりの音声信
号をデジタル信号に変換し、データ圧縮して出力すると
ともに、圧縮された音声データを伸長してアナログ信号
に変換して元の音声信号を出力する音声圧伸部６２と、
前記画像圧伸部６１および音声圧伸部６２よりのデータ
圧縮した映像データおよび音声データと主制御部１０よ
りの制御信号を多重化すると共に、入力する多重化信号
を圧縮された映像信号、圧縮された音声信号および制御
信号を復調している多重化／復調部６３と、前記多重化
／復調部６３よりの多重化信号に誤り訂正処理すると共
に、入力する誤り訂正処理した信号から元の多重化信号
を復調している誤り訂正部６４とで構成している。FIG. 2 is a detailed block diagram of the wireless image transmission device 6. In the figure, reference numeral 6a denotes a data processing unit which converts a video signal from the camera 2 or the like into a digital signal, compresses the data and outputs the compressed signal, and also expands the compressed video data to convert it into an analog signal to obtain an original image. An image companding unit 61 that outputs a signal and an audio signal from the microphone 1 or the like are converted into a digital signal, data is compressed and output, and the compressed audio data is expanded and converted into an analog signal. A voice companding unit 62 for outputting a voice signal,
The data compressed video data and audio data from the image companding unit 61 and the audio companding unit 62 and the control signal from the main control unit 10 are multiplexed, and the input multiplexed signal is a compressed video signal and compressed. A multiplexing / demodulating unit 63 that demodulates the audio signal and the control signal that have been processed, and error correction processing is performed on the multiplexed signal from the multiplexing / demodulating unit 63. The error correction unit 64 demodulates the encoded signal.
【０００９】６ｂは無線部で、前記誤り訂正処理した信
号を所定の通信方式に変換すると共に、入力する通信信
号から誤り訂正処理した信号に復調する通信制御部６５
と、前記通信制御部６５よりの通信信号を所定の無線信
号に変換して送信する送信部６６と、無線信号を受信し
て元の通信信号を復調する受信部６７とで構成してい
る。Reference numeral 6b is a radio unit, which converts the error-corrected signal into a predetermined communication system and demodulates the input communication signal into an error-corrected signal.
And a transmitting unit 66 for converting the communication signal from the communication control unit 65 into a predetermined wireless signal and transmitting the same, and a receiving unit 67 for receiving the wireless signal and demodulating the original communication signal.
【００１０】以上の構成において、つぎにその動作を説
明する。図３は飛行場等のアンテナの配置を示した図で
ある。アンテナ１１は滑走路、誘導路、ゲートの所定の
場所に配置し、飛行場のどこにいても交信できる状態に
している。今、旅客機２０が、着地して滑走路を滑走し
ているとき、スチュワーデスまたは機長が操作部１０ａ
を操作することにより、空港内ロビーにあるカメラ２か
らの映像を切り換えて全客室ブロックのモニタに写し出
し、乗客が迎えに来た人々の状況や空港ロビーの状態等
を事前に調べることができる。また、機長は操作部１０
ａを操作することにより、管制塔に設置する監視カメラ
からの映像をコックピット内のモニタ８に写して、自分
の操縦する旅客機の機影を見て、正しい位置を滑走して
いるかどうかを確認している。一方、航空管制塔、保安
室等の機外では、機内のカメラ２からの映像を切り換え
てモニタ８に写し出して、機内の状況を監視し、乗客の
安全を見守っている。乗客に危険がある場合、例えば、
旅客機がまだ滑走中で動くのが危険であるにも係わら
ず、一部の乗客が荷物を下ろし始めた場合等は、マイク
から呼びかけて所定のスピーカーに出力し、注意するこ
とができる。Next, the operation of the above configuration will be described. FIG. 3 is a diagram showing the arrangement of antennas at an airfield or the like. The antenna 11 is arranged at a predetermined place on the runway, taxiway, and gate so that communication can be performed anywhere on the airfield. Now, when the passenger aircraft 20 is landing and is sliding on the runway, the stewardess or the captain operates the operation unit 10a.
By operating, the image from the camera 2 in the airport lobby can be switched and displayed on the monitor of all guest room blocks, and the situation of the people picked up by passengers and the state of the airport lobby can be checked in advance. In addition, the captain is the operation unit 10
By operating a, the image from the surveillance camera installed in the control tower is displayed on the monitor 8 in the cockpit, and you can see the image of the passenger aircraft you are controlling to see if you are gliding in the correct position. ing. On the other hand, outside the aircraft such as the air traffic control tower and the security room, the image from the camera 2 inside the aircraft is switched and displayed on the monitor 8 to monitor the situation inside the aircraft and watch the safety of passengers. If the passenger is at risk, for example
When some passengers start to unload their luggage, even though it is dangerous for the passenger plane to move while sliding, it is possible to call out from the microphone and output it to a predetermined speaker to be careful.
【００１１】ハイジャックが発生した場合は、航空管制
塔、保安室等の機外から操作して、機内の主制御部１０
ｂを制御して、機内の操作部１０ａの操作によるカメラ
の制御等を禁止し、機外から機内のカメラ２、マイク
１、旋回装置３等を制御して、ハイジャック犯人を映像
として的確に捉え、また、機内の乗客の状態等を把握す
ることにより、犯人逮捕のための重要な情報を得ること
ができる。When a hijack occurs, the main control unit 10 inside the aircraft is operated from outside the aircraft such as the air traffic control tower and the security room.
By controlling b, the control of the camera by the operation of the operation unit 10a in the aircraft is prohibited, and the camera 2, the microphone 1, the turning device 3 and the like in the aircraft are controlled from outside the aircraft, and the hijacker is accurately displayed as an image. It is possible to obtain important information for arresting the criminal by grasping and grasping the state of passengers in the cabin.
【００１２】[0012]
【発明の効果】以上説明したように、本発明による機内
監視システムによれば、平常時は空港内のもようを写し
出すカメラからの信号を無線画像伝送装置を介して空港
に到着した飛行機等の機内のスチュワーデス控え室から
制御して受信し、客席に配置するモニタ画面で見ること
ができ、ハイジャック等の非常時には、管制塔、保安室
等の機外から無線画像伝送装置を介して機内の主制御装
置を制御して機内からの制御を一部不可とすると共に、
機内のカメラ、旋回装置等を機外から制御することによ
り、ハイジャック犯人の映像や、機内の状況を犯人に知
られることなく、的確に掴むことができるので、平常時
は機内から空港内をモニタでき、ハイジャック等の非常
時には、機外から制御して機内の状況を映像で確認でき
る機内監視システムを提供することができる。As described above, according to the in-flight monitoring system of the present invention, the signal from the camera which shows the flight inside the airport is transmitted to the airport or the like which arrives at the airport through the wireless image transmission device in normal times. It can be controlled and received from the stewardess waiting room in the cabin, and can be viewed on the monitor screen placed in the passenger seat.In an emergency such as hijacking, the main unit of the cabin can be accessed from outside the control tower, security room, etc. via the wireless image transmission device. While controlling the control device to partially disable the control from the cabin,
By controlling the in-flight camera, turning device, etc. from outside the aircraft, the hijacker's image and the situation inside the aircraft can be accurately grasped without being known by the criminal, so during normal times, the inside of the aircraft can be accessed from inside the aircraft. It is possible to provide an in-flight monitoring system that can be monitored and can be controlled from the outside of the machine by an image to check the situation inside the machine in an emergency such as hijack.
【図１】本発明による機内監視システムの一実施例を示
すシステムブロック図である。FIG. 1 is a system block diagram showing an embodiment of an in-flight monitoring system according to the present invention.
【図２】無線画像伝送装置６の詳細ブロック図を示して
いる。FIG. 2 shows a detailed block diagram of a wireless image transmission device 6.
【図３】飛行場等のアンテナの配置を示した図である。FIG. 3 is a diagram showing an arrangement of antennas at an airfield.
１ マイク ２ カメラ ３ 旋回装置 ４ 映像／音声切換装置 ５ カメラ制御装置 ６ 無線画像伝送装置 ６ａ データ処理部 ６ｂ 無線部 ７ セレクタ ８ モニタ ９ スピーカー １０ 主制御装置 １０ａ 操作部 １０ｂ 制御部 １１ アンテナ ６１ 画像圧伸部 ６２ 音声圧伸部 ６３ 多重化／復調部 ６４ 誤り訂正部 ６５ 通信制御部 ６６ 送信部 ６７ 受信部 DESCRIPTION OF SYMBOLS 1 microphone 2 camera 3 turning device 4 video / audio switching device 5 camera control device 6 wireless image transmission device 6a data processing unit 6b wireless unit 7 selector 8 monitor 9 speaker 10 main control device 10a operation unit 10b control unit 11 antenna 61 image pressure Expansion unit 62 Speech compression expansion unit 63 Multiplexing / demodulation unit 64 Error correction unit 65 Communication control unit 66 Transmission unit 67 Reception unit
Claims (5)
に配置したカメラおよびマイクからの映像信号および音
声信号を切り換えて出力する映像／音声切換装置と、前
記各カメラおよび同場所に配置する旋回装置等を選択制
御するカメラ制御装置と、前記映像／音声切換装置より
の映像信号および音声信号と、後述の無線画像伝送装置
よりの復調映像信号および復調音声信号とを選択してモ
ニタおよびスピーカー等に出力するセレクタと、該セレ
クタよりの映像信号を表示する前記モニタと、前記セレ
クタよりの音声信号を出力する前記スピーカーまたはヘ
ッドホーンと、前記各装置を制御する主制御装置と、前
記映像／音声切換装置よりの映像信号および音声信号を
各々データ圧縮等のデータ処理をして多重化し、所定の
通信方式に変換して無線で相互通信する機内無線画像伝
送装置または、機外無線画像伝送装置を備えてなること
を特徴とする機内監視システム。1. A video / audio switching device for switching and outputting video signals and audio signals from cameras and microphones arranged at a plurality of predetermined locations inside and outside the aircraft, and the respective cameras and the same location. A camera control device for selectively controlling a turning device and the like, a video signal and an audio signal from the video / audio switching device, and a demodulated video signal and a demodulated audio signal from a wireless image transmission device, which will be described later. A selector for outputting to a speaker or the like, the monitor for displaying a video signal from the selector, the speaker or headphone for outputting an audio signal from the selector, a main control device for controlling each device, and the video / Video signals and audio signals from the audio switching device are multiplexed by performing data processing such as data compression, and converted to the specified communication system. An in-flight monitoring system comprising an in-flight wireless image transmission device or an external wireless image transmission device that wirelessly communicate with each other.
線画像伝送装置は、映像信号、音声信号の他に制御信号
を多重化して相互通信するようにし、機内、または機外
より機外または機内の無線画像伝送装置に接続する前記
主制御装置を制御することにより、旋回装置の制御、カ
メラの切り換え制御、映像の送出制御等の制御を行うよ
うにしてなることを特徴とする請求項１記載の機内監視
システム。2. The in-flight wireless image transmission device and the out-of-flight wireless image transmission device are configured to multiplex a control signal in addition to a video signal and an audio signal for mutual communication, so that the in-flight or out-of-flight or in-flight 2. The control of the turning device, the control of switching the camera, the control of the video transmission, etc. is performed by controlling the main control device connected to the wireless image transmission device. In-flight surveillance system.
と制御部とからなり、操作部は、コックピット以外に、
シュチュワーデスの控え室にも配置してなることを特徴
とする請求項１記載の機内監視システム。3. The main control device provided in the aircraft comprises an operation section and a control section, and the operation section is provided in addition to the cockpit.
The in-flight monitoring system according to claim 1, wherein the in-flight monitoring system is also arranged in a stewardess waiting room.
と制御部とからなり、操作部は、航空管制塔以外に、所
定の保安員控え室等にも配置してなることを特徴とする
請求項１記載の機内監視システム。4. The main control device provided outside the aircraft comprises an operation unit and a control unit, and the operation unit is arranged not only in the air traffic control tower but also in a predetermined security staff waiting room or the like. The in-flight monitoring system according to claim 1.
制塔等の機外に備える無線画像伝送装置に接続する制御
装置から制御することにより、機内での操作を一部不可
となるようにしてなることを特徴とする請求項２記載の
機内監視システム。5. The main control device provided inside the aircraft is controlled by a control device connected to a wireless image transmission device provided outside the aircraft such as an air traffic control tower so that some operations inside the aircraft are disabled. The in-flight monitoring system according to claim 2, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24221295A JP3216784B2 (en) | 1995-09-20 | 1995-09-20 | In-flight monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24221295A JP3216784B2 (en) | 1995-09-20 | 1995-09-20 | In-flight monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0993566A true JPH0993566A (en) | 1997-04-04 |
| JP3216784B2 JP3216784B2 (en) | 2001-10-09 |
Family
ID=17085922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24221295A Expired - Fee Related JP3216784B2 (en) | 1995-09-20 | 1995-09-20 | In-flight monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3216784B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003045777A1 (en) * | 2001-11-29 | 2003-06-05 | Prakash Naidu | Aircraft monitoring system (ams) '3-d box' |
-
1995
- 1995-09-20 JP JP24221295A patent/JP3216784B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003045777A1 (en) * | 2001-11-29 | 2003-06-05 | Prakash Naidu | Aircraft monitoring system (ams) '3-d box' |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3216784B2 (en) | 2001-10-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |