Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Patent
1997-07-17
2000-02-08
Shah, Kamini
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
702152, 702159, 382104, 382216, 340958, 356 314, G06F 962
Patent
active
060236655
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to systems for locating, identifying and tracking objects. More particularly, it relates to aircraft location, identification and docking guidance systems and to ground traffic control methods for locating and identifying objects on an airfield and for safely and efficiently docking aircraft at such airport.
2. Description Of Related Art
In recent years there has been a significantly increased amount of passengers cargo and other aircraft traffic including take offs, landings and other aircraft ground traffic. Also there has been a marked increase in the number of ground support vehicles which are required to off load cargo, provide catering services and on going maintenance and support of all aircraft. With this substantial increase in ground traffic has come a need for greater control and safety in the docking and identification of aircraft on an airfield.
Examplary of prior art systems which have been proposed for detecting the presence of aircraft and other traffic on an airfield are those systems disclosed in U.S. Pat. No. 4,995,102; European Pat. No. 188 757; and PCT Published Applications WO 93/13104 and WO 931/5416.
However, none of those systems have been found to be satisfactory for detection of the presence of aircraft on an airfield, particularly, under adverse climatic conditions causing diminished visibility such as encountered under fog, snow or sleet conditions. Furthermore, none of the systems disclosed in the prior references are capable of identifying and verifying the specific configuration of an approaching aircraft. Still further, none of the prior systems provide adequate techniques for tracking and docking an aircraft at a designated stopping point such as an airport loading gate. Also, none of the prior systems have provided techniques which enable adequate calibration of the instrumentation therein.
Thus, it has been a continuing problem to provide systems which are sufficiently safe and reliable over a wide range of atmospheric conditions to enable detection of objects such as aircraft and other ground traffic on an airfield.
In addition, there has been a long standing need for systems which are not only capable of detecting objects such as aircraft, but which also provide for the effective identification of the detected object and verification of the identity, of such object, for example, a detected aircraft with the necessary degree of certainty regardless of prevailing weather conditions and magnitude of ground traffic.
There has also been a long standing, unfulfilled need for systems which are capable of accurately and efficiently tracking and guiding objects such as incoming aircraft to a suitable stopping point such as an airport loading gate. In addition, the provision of accurate and effective calibration techniques for such systems has been a continuing problem requiring resolution.
SUMMARY OF THE INVENTION
In order to overcome the foregoing problems, systems and methods are required which are capable of achieving accurate, safe, efficient and cost effective location of objects such as aircraft on an airfield and for proper identification and verification of the identity of such objects. In addition, systems and methods are required for tracking and docking guidance of objects such as aircraft, particularly, in a real time operating mode. Furthermore, systems and methods arc required for calibration of such operating systems.
Accordingly, it is a primary object of the present invention to provide such systems and methods. In this regard, it is a specific object of the present invention to provide docking guidance systems which are capable of determining the precise position as well as verifying the identity of aircraft on an airfield. Another object of the invention is to provide information to an individual or individuals controlling the docking or parking of aircraft on an airfield via a display unit utilizing communications between the system and a personal computer and other methods for
REFERENCES:
patent: 4319332 (1982-03-01), Mehnert
patent: 4995102 (1991-02-01), Ichinose et al.
patent: 5424746 (1995-06-01), Schwab et al.
patent: 5475370 (1995-12-01), Stern
patent: 5589822 (1996-12-01), Stern
patent: 5675661 (1997-10-01), Richman et al.
Database WPI, Section EI, Week 9332, Derwent Publications, Ltd., London, GB, Class S02, AN 93-256658, Aug. 7, 1992 (Abstract).
Database WPI, Section EI, Week 9514, Derwent Publications, Ltd., London, GB, Class T04, AN 95-105467, Dec. 13, 1994 (Abstract).
Airport Technology in Scandinavia AB
Shah Kamini
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