CA2433480C - Communications installation for aircraft - Google Patents
Communications installation for aircraft Download PDFInfo
- Publication number
- CA2433480C CA2433480C CA2433480A CA2433480A CA2433480C CA 2433480 C CA2433480 C CA 2433480C CA 2433480 A CA2433480 A CA 2433480A CA 2433480 A CA2433480 A CA 2433480A CA 2433480 C CA2433480 C CA 2433480C
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- Canada
- Prior art keywords
- data
- aircraft
- ground station
- recording apparatus
- board
- 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.)
- Expired - Fee Related
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- 238000004891 communication Methods 0.000 title claims abstract description 42
- 230000006854 communication Effects 0.000 title claims abstract description 42
- 238000009434 installation Methods 0.000 title description 4
- 230000015654 memory Effects 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000004913 activation Effects 0.000 description 11
- 239000007787 solid Substances 0.000 description 3
- DUUCJSJYISFGCI-WBPXWQEISA-N (2r,3r)-2,3-dihydroxybutanedioic acid;2-(dimethylamino)ethanol Chemical compound CN(C)CCO.OC(=O)[C@H](O)[C@@H](O)C(O)=O.OC(=O)[C@H](O)[C@@H](O)C(O)=O DUUCJSJYISFGCI-WBPXWQEISA-N 0.000 description 1
- HEFNNWSXXWATRW-UHFFFAOYSA-N Ibuprofen Chemical compound CC(C)CC1=CC=C(C(C)C(O)=O)C=C1 HEFNNWSXXWATRW-UHFFFAOYSA-N 0.000 description 1
- 101100023384 Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) mimG gene Proteins 0.000 description 1
- 101100220445 Nocardia farcinica (strain IFM 10152) groEL2 gene Proteins 0.000 description 1
- 101150015779 act3 gene Proteins 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 101150077981 groEL gene Proteins 0.000 description 1
- 101150028210 groEL1 gene Proteins 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/0015—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/0015—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems
- B64D45/0031—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems means for overriding or restricting access to flight controls
- B64D45/0034—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems means for overriding or restricting access to flight controls by ground-control override
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/0015—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems
- B64D45/0051—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems by monitoring passengers or crew on aircraft
- B64D45/0053—Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems by monitoring passengers or crew on aircraft using visual equipment, e.g. cameras
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
- B64D47/08—Arrangements of cameras
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Closed-Circuit Television Systems (AREA)
- Television Signal Processing For Recording (AREA)
- Selective Calling Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to an arrangement for audio and/or video and/or data communication between a ground station and an aircraft, having at least one communications channel, wherein a monitoring device is additionally provided on board the aircraft and has the following features:
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at least one communications channel in the arrangement for audio and/or video and/or data communication between the ground station and the aircraft.
The invention allows remote monitoring of the interior of an aircraft and utilizes communications infra-structures (VHF radio links) provided for data transmission.
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at least one communications channel in the arrangement for audio and/or video and/or data communication between the ground station and the aircraft.
The invention allows remote monitoring of the interior of an aircraft and utilizes communications infra-structures (VHF radio links) provided for data transmission.
Description
Lufthansa Technik AG
01.07.2002 Re/HA/ku/gl Communications insta.Ilation f~sr aircraft The invention relates to an arrangement for audio and/or video and/or data communication in accordance with the preamble of the main claim, Communications installations, particularly for audio communication (radio telephony) between an aircraft and a ground station and also between aixcraft, are known.
Terrestrial xadio links in the VHF band are particularly common.
US-A-5,742,336 discloses a monitoring system for aircraft. A plurality of video cameras and microphones are installed on board an aircraft; the corresponding video and audio data are transmitted to a ground station via a satellite link.
The invention is based on the object of providing a simple and inexpensive arrangement of the type mentioned in the introduction which a.dditional_ly allows the aircraft ~ to be monitored from a ground station.
The invention achieves this object by virtue of a monitoring device additionally being provided on board the aircraft and having the following features:
a) at least one audio and/or video andlor flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, e) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at :east one communications channel in the: arrangE:ment for audio and/or video and/or data communication between the ground station and t:he aircraft.
First, a few concepts used within the scope of the invention will be explained.
The inventive arrangement is provided for audio and/or video and/or data communication hetween a ground station and an aircraft. The term "arrangement°' makes it clear that the invention comprises a~;paratuses arranged both on board the aircraft and in the ground 2~ station. The audio communication can, in particular, involve a radio link (simplex or duplex link}. Data communication can involve, by way of example, continuous or intermittently repeated. transmission of data such as engine data or other flight data.
The concept '°ground station'° refers to any base station communicating with the aircraft, said base: station generally also being arranged at a physically fixed location on the ground, but not necE:ssarily :having to be so. Within the scope of the invention, it mar also be a mobile base station, for example on board a vehicle, ship or another aircraft. This is also covered by the concept "ground station" within the scope of the invention.
The inventive arrangement has at least one communications channel. This means that at least one (audio, video or data) link can be set up between an aircraft and a ground station in one transmission direction. According to the invention, it is preferred if the bandwidth of this communications channel allows at least the transmission of audibly comprehensible audio data in real time, as in the case of an ordinary terrestrial VHF link, for example. Generally, an arrangement in accordance with the invention will have more than one communications channel. By way of example, a full-duplex voice link already ha:~ a second communications channel, so that it is possible to transmit audio data in both directions simultaneously~
In general, an arrangement in ac~~ordance with the invention will have a plurality of commwnications channels (for example radio channels) which can be used simultaneously.
The inventive monitoring device provided has at least one audio and/or video and/or flight data recording apparatus. This may involve, in particular, microphones, video cameras and apparatuses for recording engine data, data from the control devices and the like. Preferably, a p~.uralii~y of audio and/or video recording apparatuses are provided which, by way of example, can audibly and visibly record events in the cockpit and/or cabin in part or in full. When the recording apparatus is referred to within thE: scope of the invention, this is always also intended to cover the ordinary case of a plurality of recording apparatuses.
The recordir6g apparatus can be activated either from on board the aircraft or by remote control from the ground station. Activation means that the ~.pparatus starts to record audio or video data, for example. Preferably, to activate it from on board, a plurality of switches distributed inconspicuously over the cockpit and the cabin are provided, so that the cockpit or cabin crew can activate the recording apparatuses inconspicuously in the event of an aircraft hijack, for example.
Remote-controlled activation from the ground station is advantageous if, for example in the event of an aircraft hijack, following a terrorist attack or a technical fault (pressure loss o:r the like), the cockpit and/or cabin crew are not able to ac,, or can act only to a restricted degree. In the case of occurrences which attract attentioay, such as flight data differing from the route plan ;changes of course, sudden changes in altitude or the like), i;he ground station (air traffic controller) can then activate the monitoring system without any action by the aircraft crew in order to obtain a picture of the situation on board.
According to the invention, the recording apparatus can be deactivated exclusively by remote control- from the ground station and/or from on board the a~.r~~raft when it is on the ground (for example using the LRLI (line replaceable unit)). This is Intended to prevent the aircraft crew from being able to deactivate the system again after the occurrence of an emergency on account of misjudgment of the situation or under external pressure (for example in the case of an. aircraft hijack). Out of the same considerat~_ons, the invention preferably involves arranging the audio and/or video and/or flight data recording apparatuses and also other parts of the inventive arrangement so that they are hidden or inconspicuous, and also, if appropriate, physically protecting them by means of an appropriately solid housing or the like.
The invention provides a .memory for the date from the recording apparatus. This memory preferably stores all the data preferably in all the recording apparatuses over a particular period. It can be an analog or preferably a digital memory, which s-t.ores the _ 5 corresponding data in digitized form. It can :preferably be memory chips (solid state memory}, for example.
In addition, a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station is provided. According to the invention, this transmission apparatus uses at least one communications channel in the inventive arrangement for the transmission operation. V~lithin the scope of the invention, the transmission apparatus can transmit data from one or more recording apparatuses in real time provided that the capacity of the communications channel used is su:~fi.cient for this purpose. By way of example, a VHF radio chanrdel can be used to listen to a monitoring microphone from the ground station in real time. Frequerxtly, however, the capacity of the available communications channel or communications channels will not be sufficient to transmit all the data from all the recording apparatuses to the ground station in real time. within the scope of the invention, provision. is therefore made for the transmission apparatus optionally also to be able to transmit data read from the memory to the ground station. For this purpose, t:he ground station can advantageously specifically actuate the memory which is on board the aircraft by remote control and can read data stored therein. If, by way of example, the real-time audio monitoring of the: cockpit indicates that a particular event has taken place at a particular time, the ground station can specifically retrieve video data for this time using t:he communications channel.
The particular advantage of the invention i.s that a 3~ particular communications infrastructure does not need to be set up for tree monitoring device. Instead, according to the invention, the communications devices available on any aircraft anyway, which are generally narrowband communications devices, however, such as VHF
-radio, are additionally used as communications channels for the monitoring device. Although these communica-tions channels available anyway frequently do not allow full real-time transmission of all the monitoring data, storage of these data in the on-board memory and the option of specific actuation and reading of the data from the memory by the ground station nevertheless allow the air traffic controller to obtain, within the scope of the invention, a full picture of the situation on board by also subsequently retrieving stored data.
The VHF band comprises frequencies from 30 to 300 MHz.
Normally, VHF links between an aircraft and a ground station or between aircraft. are amplitude-modulated, ~.,. ,.
but other types of modulation, particularly frequency or phase modulation, axe likewise conceivable. Within the scope of the invention, communications links in other frequency bands , such as in the UHF band ( 0 , 3 to 3 GHz) or possibly in the minimum-wave and shortwave range (1.6 to 30 MHz), can likewise be used.
With this ability, which is preferred within the scope of the invention, to control selection of the data to be transmitted using the transmission apparatus from among data from the recording apparatus (for example selection of the microphones or cameras) or stored data, it is also preferred that the data from the recording apparatus are stored in the memory with an identifier indicating the recording time and/or location. Data to be transmitted to the groL~nd station can then be selected from the memory, within. the scope of the invention, by virtue of the ground station transmitting to the aircraft an identifier containing a recording time and a recording location (for example cockpit camera), This identifier is then used to select the appropriate data from the memory, to read them and to transmit t:°~em to the ground station using the communications channel.
-The invention also relates to a monitoring device which is set up for use in an arrangement in accordance with the invention (claim 7). This monitoring device can be incorporated into an existing communications installation (for example a VHF radio installation), so that an arrangement in accordance with the invention is produced.
The inventive memory preferably has the mechanical and ZO thermal resistance capability of a cockpit voice recorder or other flight data writer (black box). It is preferably designed for fully recording the data from all the recording apparatuses over a period of at least min, preferably at least 30 min, and more preferably 35 at least 1 h.
.An exemplary embodiment of the invention is described below with reference to the drawings, in which:
figure 1 schematically shows the on-board communica-tions and monitoring device in the inventive arrangement;
figure 2 schematically shows an example of activation or control of the on-board part of the arrangement by a ground station.
The on-board central unit 1 contains the .memory for data from the audio, video and/or flight data recording apparatuses, connections for appropriate recording apparatuses, and also for supplying power, the transmission apparatus for communicating with the ground station and other operating or display apparatuses.
The central unit I has the mechanical and thermal resistance capability of a cockpit voice recorder, which means that data stored therein are maintained in readable form even after an aircraft crash. It is g preferably arranged in a region of 'the aircraft which is not accessible during the flight or can bEa accessed only with difficulty. The central unit 1 is connected to the on-board power supply, as indicated at 2. As a backup power supply, an internally arranged battery 3 is provided.
01.07.2002 Re/HA/ku/gl Communications insta.Ilation f~sr aircraft The invention relates to an arrangement for audio and/or video and/or data communication in accordance with the preamble of the main claim, Communications installations, particularly for audio communication (radio telephony) between an aircraft and a ground station and also between aixcraft, are known.
Terrestrial xadio links in the VHF band are particularly common.
US-A-5,742,336 discloses a monitoring system for aircraft. A plurality of video cameras and microphones are installed on board an aircraft; the corresponding video and audio data are transmitted to a ground station via a satellite link.
The invention is based on the object of providing a simple and inexpensive arrangement of the type mentioned in the introduction which a.dditional_ly allows the aircraft ~ to be monitored from a ground station.
The invention achieves this object by virtue of a monitoring device additionally being provided on board the aircraft and having the following features:
a) at least one audio and/or video andlor flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, e) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at :east one communications channel in the: arrangE:ment for audio and/or video and/or data communication between the ground station and t:he aircraft.
First, a few concepts used within the scope of the invention will be explained.
The inventive arrangement is provided for audio and/or video and/or data communication hetween a ground station and an aircraft. The term "arrangement°' makes it clear that the invention comprises a~;paratuses arranged both on board the aircraft and in the ground 2~ station. The audio communication can, in particular, involve a radio link (simplex or duplex link}. Data communication can involve, by way of example, continuous or intermittently repeated. transmission of data such as engine data or other flight data.
The concept '°ground station'° refers to any base station communicating with the aircraft, said base: station generally also being arranged at a physically fixed location on the ground, but not necE:ssarily :having to be so. Within the scope of the invention, it mar also be a mobile base station, for example on board a vehicle, ship or another aircraft. This is also covered by the concept "ground station" within the scope of the invention.
The inventive arrangement has at least one communications channel. This means that at least one (audio, video or data) link can be set up between an aircraft and a ground station in one transmission direction. According to the invention, it is preferred if the bandwidth of this communications channel allows at least the transmission of audibly comprehensible audio data in real time, as in the case of an ordinary terrestrial VHF link, for example. Generally, an arrangement in accordance with the invention will have more than one communications channel. By way of example, a full-duplex voice link already ha:~ a second communications channel, so that it is possible to transmit audio data in both directions simultaneously~
In general, an arrangement in ac~~ordance with the invention will have a plurality of commwnications channels (for example radio channels) which can be used simultaneously.
The inventive monitoring device provided has at least one audio and/or video and/or flight data recording apparatus. This may involve, in particular, microphones, video cameras and apparatuses for recording engine data, data from the control devices and the like. Preferably, a p~.uralii~y of audio and/or video recording apparatuses are provided which, by way of example, can audibly and visibly record events in the cockpit and/or cabin in part or in full. When the recording apparatus is referred to within thE: scope of the invention, this is always also intended to cover the ordinary case of a plurality of recording apparatuses.
The recordir6g apparatus can be activated either from on board the aircraft or by remote control from the ground station. Activation means that the ~.pparatus starts to record audio or video data, for example. Preferably, to activate it from on board, a plurality of switches distributed inconspicuously over the cockpit and the cabin are provided, so that the cockpit or cabin crew can activate the recording apparatuses inconspicuously in the event of an aircraft hijack, for example.
Remote-controlled activation from the ground station is advantageous if, for example in the event of an aircraft hijack, following a terrorist attack or a technical fault (pressure loss o:r the like), the cockpit and/or cabin crew are not able to ac,, or can act only to a restricted degree. In the case of occurrences which attract attentioay, such as flight data differing from the route plan ;changes of course, sudden changes in altitude or the like), i;he ground station (air traffic controller) can then activate the monitoring system without any action by the aircraft crew in order to obtain a picture of the situation on board.
According to the invention, the recording apparatus can be deactivated exclusively by remote control- from the ground station and/or from on board the a~.r~~raft when it is on the ground (for example using the LRLI (line replaceable unit)). This is Intended to prevent the aircraft crew from being able to deactivate the system again after the occurrence of an emergency on account of misjudgment of the situation or under external pressure (for example in the case of an. aircraft hijack). Out of the same considerat~_ons, the invention preferably involves arranging the audio and/or video and/or flight data recording apparatuses and also other parts of the inventive arrangement so that they are hidden or inconspicuous, and also, if appropriate, physically protecting them by means of an appropriately solid housing or the like.
The invention provides a .memory for the date from the recording apparatus. This memory preferably stores all the data preferably in all the recording apparatuses over a particular period. It can be an analog or preferably a digital memory, which s-t.ores the _ 5 corresponding data in digitized form. It can :preferably be memory chips (solid state memory}, for example.
In addition, a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station is provided. According to the invention, this transmission apparatus uses at least one communications channel in the inventive arrangement for the transmission operation. V~lithin the scope of the invention, the transmission apparatus can transmit data from one or more recording apparatuses in real time provided that the capacity of the communications channel used is su:~fi.cient for this purpose. By way of example, a VHF radio chanrdel can be used to listen to a monitoring microphone from the ground station in real time. Frequerxtly, however, the capacity of the available communications channel or communications channels will not be sufficient to transmit all the data from all the recording apparatuses to the ground station in real time. within the scope of the invention, provision. is therefore made for the transmission apparatus optionally also to be able to transmit data read from the memory to the ground station. For this purpose, t:he ground station can advantageously specifically actuate the memory which is on board the aircraft by remote control and can read data stored therein. If, by way of example, the real-time audio monitoring of the: cockpit indicates that a particular event has taken place at a particular time, the ground station can specifically retrieve video data for this time using t:he communications channel.
The particular advantage of the invention i.s that a 3~ particular communications infrastructure does not need to be set up for tree monitoring device. Instead, according to the invention, the communications devices available on any aircraft anyway, which are generally narrowband communications devices, however, such as VHF
-radio, are additionally used as communications channels for the monitoring device. Although these communica-tions channels available anyway frequently do not allow full real-time transmission of all the monitoring data, storage of these data in the on-board memory and the option of specific actuation and reading of the data from the memory by the ground station nevertheless allow the air traffic controller to obtain, within the scope of the invention, a full picture of the situation on board by also subsequently retrieving stored data.
The VHF band comprises frequencies from 30 to 300 MHz.
Normally, VHF links between an aircraft and a ground station or between aircraft. are amplitude-modulated, ~.,. ,.
but other types of modulation, particularly frequency or phase modulation, axe likewise conceivable. Within the scope of the invention, communications links in other frequency bands , such as in the UHF band ( 0 , 3 to 3 GHz) or possibly in the minimum-wave and shortwave range (1.6 to 30 MHz), can likewise be used.
With this ability, which is preferred within the scope of the invention, to control selection of the data to be transmitted using the transmission apparatus from among data from the recording apparatus (for example selection of the microphones or cameras) or stored data, it is also preferred that the data from the recording apparatus are stored in the memory with an identifier indicating the recording time and/or location. Data to be transmitted to the groL~nd station can then be selected from the memory, within. the scope of the invention, by virtue of the ground station transmitting to the aircraft an identifier containing a recording time and a recording location (for example cockpit camera), This identifier is then used to select the appropriate data from the memory, to read them and to transmit t:°~em to the ground station using the communications channel.
-The invention also relates to a monitoring device which is set up for use in an arrangement in accordance with the invention (claim 7). This monitoring device can be incorporated into an existing communications installation (for example a VHF radio installation), so that an arrangement in accordance with the invention is produced.
The inventive memory preferably has the mechanical and ZO thermal resistance capability of a cockpit voice recorder or other flight data writer (black box). It is preferably designed for fully recording the data from all the recording apparatuses over a period of at least min, preferably at least 30 min, and more preferably 35 at least 1 h.
.An exemplary embodiment of the invention is described below with reference to the drawings, in which:
figure 1 schematically shows the on-board communica-tions and monitoring device in the inventive arrangement;
figure 2 schematically shows an example of activation or control of the on-board part of the arrangement by a ground station.
The on-board central unit 1 contains the .memory for data from the audio, video and/or flight data recording apparatuses, connections for appropriate recording apparatuses, and also for supplying power, the transmission apparatus for communicating with the ground station and other operating or display apparatuses.
The central unit I has the mechanical and thermal resistance capability of a cockpit voice recorder, which means that data stored therein are maintained in readable form even after an aircraft crash. It is g preferably arranged in a region of 'the aircraft which is not accessible during the flight or can bEa accessed only with difficulty. The central unit 1 is connected to the on-board power supply, as indicated at 2. As a backup power supply, an internally arranged battery 3 is provided.
4 indicates the inputs for audio, video and/or flight data recording apparatuses. Generally, a connection for IO at least one microphone arranged in the cockpit is provided. If required, such a microphone can be connected both to the central unit 1. and to the usual cockpit voice recorder 5. Preferably, inputs for additional microphones are provided, these microphones z,;;
possibly being arranged,. by way of example, in the aircraft cabin, in the hold, or in functional areas, such as galleys or toilets, or the like. The central unit 1 is set up for parallel recording of all the audio information delivered by the microphones.
Tt is also preferred if connections for video cameras which, within the scope of the invention, can also be combined with a microphone are also provided. In this way, by way of example, events in the cockpit, in the cabin, in the hold or the like can be recorded and stored in the central unit 1. The available storage means are preferably digital, memories, such as memory chips (solid state memory , which can record the data from each input channel for a period of one: hour. In addition, the connections ~ can also be provided for flight data recording apparatuses, for example can record flight data such as altitude, speed or the like, engine data, position of the control elements for the engines or other devzces on the aircraft and the like.
Switches 6, 7 which are arranged inconspicuously in the cockpit and preferably in the cabin and are easy for the crew to reach are used for act3.vating the central unit. A signal device 8, which is preferably likewise _ g arranged inconspicuously, indicates to the cockpit crew that the central unit has been activated.
As indicated at 9 , the central unit is connected to an ordinary VHF radio 30. This radio 10 is preferably set up for simultaneously transmitting and, in particular, receiving on a plurality of VHF channels, which are indicated in the drawing by the labels VHF I, VHF 2 and VHF 3. The inventive arrangement is then activated from IO the ground station by transmitting an activation signal, which will be explained later, on a VHF channel which is constantly switched to reception in the radio 10. Normal VHF frequencies for this purpose are 121.5 or 243 NiHz, for example. The inventive arrangement can i5 be deactivated from on board only when the aa_rcraft is on the ground, using a switch which is arranged on the LRU {line replaceable unit) rack.
In normal flight mode, the central unit I :is in the 20 deactivated state. This means that it transmits no data of any kind to the ground station using the VHF link from the radio 10. In this deactivated state, the central unit I and, if appropriate, the audio, video and/or flight data recording apparatuses connected to 25 the connections 4 can be off completely; alternatively, the connections 4 can be used to record appropriate data in the internal memory of tree central unit I
without any transmission of data to t:he ground station.
In this case, old data in the memory in the central 30 unit 1 are continually overwritter.~ as soon as the storage capacity is exhausted. By way of example, appropriate audio, video and flight data for the past hour are then continually stored. This deactivated state in which the data are still recorded internally 35 has the advantage that, following activation, it is also possible to recuest events from the per:i.od before activation. By way of example, in. the case of an aircraft hijack, the ground station can obtain I~
information about where aircraft hijackers originally sat and how they got into the cockpit.
The central unit 1 is activated either using switches 6, 7 already described or by secure remote co:atrol from the ground station using a specific activation code. A
receiver in the radio IO is constantly switched to reception on an appropriate VHF channel, such as 121.5 or 243 MHz. When a specific activation code i:n the form of a touch tone is received, it is routed to the central unit 1 and activates the latter.
Following activation, the central un_~t I occupies a VHF
communications channel in the radio 10 and uses it to I5 transmit data to the ground station. If it has been activated, either by the switches 6, 7 or else from the ground station, without more precise specification of the signals which need to be transmitted, t:he central unit I first transmits a preset standard signal, for example the sound recorded by the cockpit microphone is transmitted in real time.
The ground station can use another VHF channel for secure remote control of the central unit 3 using °'touch tones". Figure 2 shows an example of a touch tone, composed of various signals, fox remotely controlling the central unit 1. First, a °'mode S code"
is transmitted which signals to the central unit 1 that control codes follow. The activation code is used to switch the central unit I from the inactive state to the active state. Conversely, it can be deactivated again in this manner. A VHF channel (denoted by F(tl) in the figure) is then prescribed which will be used to set up the link between central unit and ground station. An EOT signal signals the end of the command sequence. The aforementioned components of the tauch tone have a white bac'.sground in the drawing and are compulsory components of every command sequence to the central unit.
_ 1i _ Additional optional components of such a command sequence are shown in dashes in the drawing. Thus, activation of the central unit I can be followed by specific selection of a particular audio channel (selection from the available microphones) or a particular video channel for transmission. In addition, a plurality of VHF frequencies can be switched for transmission if the radio provides an appropriate number of channels. Finally, the command part denoted by Frame in the figure can specifically retrieve particular stored video recordings oz- pictures from the memory in the central unit 1. The data from the recording apparatuses, particularly from the video recording apparatuses, are stored in the memory in the central unit 1 with an identifier indicating the recording time and recording location. The ground station can use an appropriate command for specifically retrieving pictures from the memory from a particular camera location on the aircraft at a particular time.
This opportunity for specific subsequent retrieval of video data takes account of the fact that VHF
communications channels have two narrow a bandwidth for transmitting picture or video data in real time. The ground station can, by way of example, listen to audio data in real time and then specifically retrieves data only for those locations and times for which sufficient clarification of the situation on board cannot be obtained from the audio data alone.
The invention allows data, particularly video data, to be divided into data blocks within the central unit 1 and allows these blocks to be trar_smitted to the ground station simultaneously using a plurality of VHF
channels. This packet-by-packet parallel transmission permits faster transmission of large data records, particularly for pictures and video data.
Particularly when video data are recorded in the memory in the central ur_it 1, it can be useful for known compression algorithms to be used, when storing a plurality of frames succeeding one another in time, to store, by way of example, only the respective changes and not the entire picture.
S
An appropriate touch tone can be used to deactivate the central unit 1 again by secure remote control from the ground station. Deactivation from on board is possible only when the aircraft is on the ground, using the switch 10 arranged on the LRU rack.
possibly being arranged,. by way of example, in the aircraft cabin, in the hold, or in functional areas, such as galleys or toilets, or the like. The central unit 1 is set up for parallel recording of all the audio information delivered by the microphones.
Tt is also preferred if connections for video cameras which, within the scope of the invention, can also be combined with a microphone are also provided. In this way, by way of example, events in the cockpit, in the cabin, in the hold or the like can be recorded and stored in the central unit 1. The available storage means are preferably digital, memories, such as memory chips (solid state memory , which can record the data from each input channel for a period of one: hour. In addition, the connections ~ can also be provided for flight data recording apparatuses, for example can record flight data such as altitude, speed or the like, engine data, position of the control elements for the engines or other devzces on the aircraft and the like.
Switches 6, 7 which are arranged inconspicuously in the cockpit and preferably in the cabin and are easy for the crew to reach are used for act3.vating the central unit. A signal device 8, which is preferably likewise _ g arranged inconspicuously, indicates to the cockpit crew that the central unit has been activated.
As indicated at 9 , the central unit is connected to an ordinary VHF radio 30. This radio 10 is preferably set up for simultaneously transmitting and, in particular, receiving on a plurality of VHF channels, which are indicated in the drawing by the labels VHF I, VHF 2 and VHF 3. The inventive arrangement is then activated from IO the ground station by transmitting an activation signal, which will be explained later, on a VHF channel which is constantly switched to reception in the radio 10. Normal VHF frequencies for this purpose are 121.5 or 243 NiHz, for example. The inventive arrangement can i5 be deactivated from on board only when the aa_rcraft is on the ground, using a switch which is arranged on the LRU {line replaceable unit) rack.
In normal flight mode, the central unit I :is in the 20 deactivated state. This means that it transmits no data of any kind to the ground station using the VHF link from the radio 10. In this deactivated state, the central unit I and, if appropriate, the audio, video and/or flight data recording apparatuses connected to 25 the connections 4 can be off completely; alternatively, the connections 4 can be used to record appropriate data in the internal memory of tree central unit I
without any transmission of data to t:he ground station.
In this case, old data in the memory in the central 30 unit 1 are continually overwritter.~ as soon as the storage capacity is exhausted. By way of example, appropriate audio, video and flight data for the past hour are then continually stored. This deactivated state in which the data are still recorded internally 35 has the advantage that, following activation, it is also possible to recuest events from the per:i.od before activation. By way of example, in. the case of an aircraft hijack, the ground station can obtain I~
information about where aircraft hijackers originally sat and how they got into the cockpit.
The central unit 1 is activated either using switches 6, 7 already described or by secure remote co:atrol from the ground station using a specific activation code. A
receiver in the radio IO is constantly switched to reception on an appropriate VHF channel, such as 121.5 or 243 MHz. When a specific activation code i:n the form of a touch tone is received, it is routed to the central unit 1 and activates the latter.
Following activation, the central un_~t I occupies a VHF
communications channel in the radio 10 and uses it to I5 transmit data to the ground station. If it has been activated, either by the switches 6, 7 or else from the ground station, without more precise specification of the signals which need to be transmitted, t:he central unit I first transmits a preset standard signal, for example the sound recorded by the cockpit microphone is transmitted in real time.
The ground station can use another VHF channel for secure remote control of the central unit 3 using °'touch tones". Figure 2 shows an example of a touch tone, composed of various signals, fox remotely controlling the central unit 1. First, a °'mode S code"
is transmitted which signals to the central unit 1 that control codes follow. The activation code is used to switch the central unit I from the inactive state to the active state. Conversely, it can be deactivated again in this manner. A VHF channel (denoted by F(tl) in the figure) is then prescribed which will be used to set up the link between central unit and ground station. An EOT signal signals the end of the command sequence. The aforementioned components of the tauch tone have a white bac'.sground in the drawing and are compulsory components of every command sequence to the central unit.
_ 1i _ Additional optional components of such a command sequence are shown in dashes in the drawing. Thus, activation of the central unit I can be followed by specific selection of a particular audio channel (selection from the available microphones) or a particular video channel for transmission. In addition, a plurality of VHF frequencies can be switched for transmission if the radio provides an appropriate number of channels. Finally, the command part denoted by Frame in the figure can specifically retrieve particular stored video recordings oz- pictures from the memory in the central unit 1. The data from the recording apparatuses, particularly from the video recording apparatuses, are stored in the memory in the central unit 1 with an identifier indicating the recording time and recording location. The ground station can use an appropriate command for specifically retrieving pictures from the memory from a particular camera location on the aircraft at a particular time.
This opportunity for specific subsequent retrieval of video data takes account of the fact that VHF
communications channels have two narrow a bandwidth for transmitting picture or video data in real time. The ground station can, by way of example, listen to audio data in real time and then specifically retrieves data only for those locations and times for which sufficient clarification of the situation on board cannot be obtained from the audio data alone.
The invention allows data, particularly video data, to be divided into data blocks within the central unit 1 and allows these blocks to be trar_smitted to the ground station simultaneously using a plurality of VHF
channels. This packet-by-packet parallel transmission permits faster transmission of large data records, particularly for pictures and video data.
Particularly when video data are recorded in the memory in the central ur_it 1, it can be useful for known compression algorithms to be used, when storing a plurality of frames succeeding one another in time, to store, by way of example, only the respective changes and not the entire picture.
S
An appropriate touch tone can be used to deactivate the central unit 1 again by secure remote control from the ground station. Deactivation from on board is possible only when the aircraft is on the ground, using the switch 10 arranged on the LRU rack.
Claims (7)
1. An arrangement for audio and/or video and/or data communication between a ground station and an aircraft, having at least one communications channel, wherein a monitoring device is additionally provided on board the aircraft and has the following features:
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus nor transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at least one communications channel in the arrangement for audio and/or video and/or data communication between the ground station and tree aircraft.
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus nor transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus uses at least one communications channel in the arrangement for audio and/or video and/or data communication between the ground station and tree aircraft.
2. The arrangement as claimed in claim 1, wherein it has an apparatus which can be controlled by the ground station for the purpose of selecting the data to be transmitted using the transmission apparatus from among the data from the recording apparatus or stored data.
3. The arrangement as claimed in claim 1 or 2, wherein the data from the recording apparatus are stored in the memory with an identifier indicating the recording time and/or location.
4. The arrangement as claimed in one of claims 1 to 3, wherein the at least one communications channel is a VHF channel.
5. The arrangement as claimed in one of claims 1 to 4, wherein the memory has the mechanical and thermal resistance capability of a cockpit voice recorder.
6. The arrangement as claimed in one of claims 1 to 5, wherein the memory is designed for fully recording the data from all the recording apparatuses over a period of at least 15 min, preferably at least 30 min, and more preferably at least 1 h.
7. A monitoring device for use on board an aircraft, wherein it has the following features:
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus is set up to use at least one communications channel in an on-board arrangement for audio and/or video and/or data communication between the aircraft and a ground station.
a) at least one audio and/or video and/or flight data recording apparatus, b) the recording apparatus can be activated either from on board the aircraft or by remote control from the ground station, c) the recording apparatus can be deactivated exclusively by remote control from the ground station and/or from on board the aircraft when it is on the ground, d) a memory for the data from the recording apparatus, e) a transmission apparatus for transmitting data from the recording apparatus and/or data read from the memory to the ground station, f) the transmission apparatus is set up to use at least one communications channel in an on-board arrangement for audio and/or video and/or data communication between the aircraft and a ground station.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10229666A DE10229666A1 (en) | 2002-07-02 | 2002-07-02 | Communication system for aircraft |
| DE10229666.9 | 2002-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2433480A1 CA2433480A1 (en) | 2004-01-02 |
| CA2433480C true CA2433480C (en) | 2010-09-07 |
Family
ID=29719436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2433480A Expired - Fee Related CA2433480C (en) | 2002-07-02 | 2003-06-25 | Communications installation for aircraft |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP1724195A3 (en) |
| CA (1) | CA2433480C (en) |
| DE (2) | DE10229666A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6937164B2 (en) | 2003-02-17 | 2005-08-30 | The Boeing Company | Methods and apparatus for transportation vehicle security monitoring |
| DE102007051196B4 (en) | 2007-10-25 | 2011-12-22 | Airbus Operations Gmbh | Device for imaging the aircraft interior |
| US8515656B2 (en) | 2007-11-02 | 2013-08-20 | Goodrich Corporation | Integrated aircraft cargo loading and monitoring system |
| CN102610004A (en) * | 2012-03-21 | 2012-07-25 | 天津七一二通信广播有限公司 | Wireless communication data recording unit for rail transit |
| CN103879559A (en) * | 2012-12-22 | 2014-06-25 | 中航贵州飞机有限责任公司 | Aircraft take-off and landing monitoring device |
| CA3060108A1 (en) * | 2017-04-24 | 2018-11-01 | Theia Group, Incorporated | System for recording and real-time transmission of in-flight of aircraft cockpit to ground services |
| DE102020204110A1 (en) | 2020-03-30 | 2021-09-30 | Airbus Operations Gmbh | Video surveillance system for a cabin of an aircraft, aircraft and connection and data transmission set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831438A (en) * | 1987-02-25 | 1989-05-16 | Household Data Services | Electronic surveillance system |
| US5798458A (en) * | 1996-10-11 | 1998-08-25 | Raytheon Ti Systems, Inc. | Acoustic catastrophic event detection and data capture and retrieval system for aircraft |
| DE19732806A1 (en) * | 1997-07-30 | 1999-02-04 | Vidair Avionics Ag | Monitoring device for the interior of aircraft, in particular passenger aircraft |
-
2002
- 2002-07-02 DE DE10229666A patent/DE10229666A1/en not_active Withdrawn
-
2003
- 2003-06-02 EP EP06018049A patent/EP1724195A3/en not_active Withdrawn
- 2003-06-02 DE DE50304923T patent/DE50304923D1/en not_active Expired - Lifetime
- 2003-06-02 EP EP03012554A patent/EP1378447B1/en not_active Expired - Fee Related
- 2003-06-25 CA CA2433480A patent/CA2433480C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2433480A1 (en) | 2004-01-02 |
| EP1724195A3 (en) | 2006-11-29 |
| DE10229666A1 (en) | 2004-01-22 |
| EP1378447A1 (en) | 2004-01-07 |
| EP1378447B1 (en) | 2006-09-06 |
| DE50304923D1 (en) | 2006-10-19 |
| EP1724195A2 (en) | 2006-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150625 |