Patent Application
20120290170
The present invention relates to maintenance systems and methods of an installation of a vehicle and more particularly to maintenance systems and methods of an installation of an aircraft where the maintenance activities are performed by means of an interactive communication between the installation and maintenance equipment.
Modern aircrafts and other similar vehicles include complex installations whose maintenance needs involve maintenance activities performed by means of an interactive communication between the installation and maintenance equipment. The maintenance equipment typically being a computer system which is provided with suitable software means for performing maintenance activities.
The connection between the aircraft installation and the maintenance equipment is a single point-to-point connection by means of a physical cable, particularly in aircrafts, due to, among others reasons, safety concerns. Consequently, these maintenance activities shall be done in place.
The increasing complexity of aircraft installations involves increasing maintenance needs so that there is demand for simpler and more efficient maintenance systems and methods.
The present invention is focused on meeting this demand.
An object of the present invention is to provide wireless maintenance systems and methods for an installation of a vehicle, particularly, an aircraft.
Another object of the present invention is to provide remote maintenance systems and methods for an installation of a vehicle, particularly, an aircraft.
In one aspect, these and other objects are met by a method for performing maintenance of an installation of a vehicle comprising the steps of:
establishing an operative connection between said installation, that uses a first communication interface, and maintenance equipment, provided with wireless connection means using a second communication interface, using a converter device for said first and second communication interfaces;
performing maintenance activities by means of an interactive communication between said maintenance equipment and said installation.
In embodiments of the present invention, said maintenance equipment is a mobile device having means for performing said maintenance activities and said second communication interface is an interface for exchanging data over short distances, up to at least 100 meters, using short-range radio-links (such as Bluetooth). Therefore a maintenance method of installations of vehicles using a wireless connection is accomplished.
In embodiments of the present invention, said maintenance equipment comprises a first device having means for performing said maintenance activities and a second device having wireless connection means using a second communication interface, both devices having also means for communicating between them through the Internet and said second communication interface is an interface for exchanging data over short distances, up to at least 100 meters, using short-range radio-links (such as Bluetooth). Therefore a remote maintenance method of installations of vehicles is accomplished.
Another aspect the above-mentioned objects are met by a maintenance system of an installation of a vehicle comprising maintenance equipment having means for performing the maintenance activities by means of an interactive communication between said maintenance equipment and said installation, in which:
the installation uses a first communication interface and is provided with an I/O connector; the maintenance equipment is provided with wireless connection means using a second communication interface; and
a converter device for said first and second communication interfaces connected to said I/O connector.
In embodiments of the invention, said maintenance equipment is a mobile device (such as a mobile phone, a PDA or a mobile computer such as an iPad™, a tablet computer or a tablet PC, hereinafter a “tablet”) having means for performing said maintenance activities and said second communication interface is an interface for exchanging data over short distances, up to at least 100 meters, using short-range radio-links (such as Bluetooth). Therefore a maintenance system, where the maintenance activities can be performed through a wireless connection avoiding, on one side, the need of installing a cable connection for each maintenance operation and, on the other side, the constraint of performing the maintenance very close to the installation, is accomplished.
In embodiments of the invention, said maintenance equipment comprises a first device (such as a PC, a laptop, a PDA or a tablet) having means for performing said maintenance activities and a second device (such as a mobile phone, a PDA or a tablet) having wireless connection means using a second communication interface, both devices having also means for communicating between them through the Internet and said second communication interface is an interface for exchanging data over short distances using short-range radio-links (such as Bluetooth). Therefore a maintenance system where the maintenance activities can be performed through a remote connection so that the maintenance of the installation can be in charge of specialized personnel is accomplished.
In embodiments of the present invention, the installation is an aircraft installation may use one of the following communication interfaces: ARINC429, MIL1553, RS232, RS422, RS485. Therefore a maintenance system of particular interest for aircraft installations due to the high cost of in-situ maintenance activities is accomplished.
In embodiments of the present invention, said vehicle is a tanker aircraft and said installation is an installation that provides a remote vision of the refueling scenario and said converter device includes an individual power source with a controlled switch for assuring that said maintenance activities can be only performed when the aircraft is grounded. Therefore an efficient maintenance system for an installation that, on the one side, has important maintenance needs due to its complexity, and, on the other side, that may require maintenance activities in very different locations is accomplished.
Other features and advantages of the present invention will be understood from the following detailed description in relation with the enclosed drawings.
Preferred embodiments of this invention will be described in connection with an installation located in the tanker aircraft that provides an enhanced vision of the refueling scenario in aerial refueling operations using a boom device.
This installation helps the boom operators in the tanker aircraft to manipulate and control the boom until it makes a physical connection with the receptacle of the approaching receptor aircraft.
As illustrated in
An overview of the maintenance needs of the vision installation 10 follows.
Within the meaning of the present invention the maintenance activities also comprise diagnosis activities such as the following:
In one embodiment of the invention illustrated in
Bluetooth is a method for data communication that uses short-range radio-links to replace cables between computers and their connected units.
Bluetooth has been designed to operate in noisy radio frequency environments, and uses a fast acknowledgement and frequency-hopping scheme to make the link robust, communication-wise. Bluetooth radio modules avoid interference from other signals by hopping to a new frequency after transmitting or receiving a packet.
Bluetooth has built in sufficient encryption and authentication and is thus very secure in any environment. In addition to this, a frequency-hopping scheme with 1600 hops/sec. is employed. This is far quicker than any other competing system. This, together with an automatic output power adaption to reduce the range exactly to requirement, makes the system extremely difficult to eavesdrop.
Once the wireless connection 43 between the tablet 41 and the vision installation 10 is established, the maintenance activities are performed by maintenance personnel 45 using the software means of the tablet 41 in interactive communication with the maintenance interface 27 of the vision installation 10.
Performing the maintenance of the vision installation through a wireless connection simplifies the maintenance operations as there is no need of a cable connection and as the maintenance personnel can be located in any place within the Bluetooth range (approx. 100 m).
In another embodiment of the invention, illustrated in
Once the wireless connection 43 between the tablet 46 and the vision installation 10 is established and the tablet 46 is duly configured to act as a communication channel between the laptop 47 and the connector 31 (following a communication between maintenance personnel 45, 49 by mobile phone or by any other means), the maintenance activities are performed by a maintenance personnel 49 using the software means of laptop 47 in interactive communication with the maintenance interface 27 of the vision installation 10.
Performing a remote maintenance of the vision installation 10 using a combination of an Internet communication and a Bluetooth connection as described allows an efficient maintenance as it can be done by specialized personnel from a remote support centre.
In preferred embodiments the converter 33 is a portable device which is connected when the maintenance activities are needed. Eventually, if the converter remains connected, it comprises an individual power source with a controlled switch for assuring that it will not be energized in flight. The converter 33 can therefore remain un-energized all the time, unless a maintenance activity of the vision installation 10 must be performed when the aircraft is grounded. As a consequence, the qualification levels EMI/EMC of this converter will be smaller, as it will never be energized during flight.
This allows compliance with the regulations of the FCC and FAA that prohibit airborne operation of radio-frequency wireless devices because their signals could interfere with critical aircraft instruments. In any case the maintenance activities shall be performed when the aircraft is on the ground.
Although the present invention has been fully described in connection with preferred embodiments, it is evident that modifications may be introduced within the scope thereof, not considering this as limited by these embodiments, but by the contents of the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 11382067.4 | Mar 2011 | EP | regional |
