US 12,077,317 B2
Airborne vehicle assisted landing system and method thereof
Anna-Karin Holmer, Joenkoeping (SE); Johan Zanden, Norrahammar (SE); and Stefan Andersson, Habo (SE)
Assigned to SAAB AB, Linkoping (SE)
Appl. No. 17/620,431
Filed by SAAB AB, Linkoeping (SE)
PCT Filed Jun. 17, 2020, PCT No. PCT/SE2020/050632
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2020/256629, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 1950744-1 (SE), filed on Jun. 18, 2019.
Prior Publication US 2022/0324587 A1, Oct. 13, 2022
Int. Cl. B64F 1/20 (2006.01); G08G 5/00 (2006.01); G08G 5/02 (2006.01)
CPC B64F 1/20 (2013.01) [G08G 5/0026 (2013.01); G08G 5/025 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A landing assistance system (100) for assisting an airborne vehicle (1) during landing on a landing area (2), which landing assistance system (100) provides the airborne vehicle (1) with light signals, the landing assistance system comprising:
at least one geographically positioned light emitter (4, 6, 8) arranged at near ground level on the landing area (2), and
at least one control unit (10) for calibration of the landing assistance system to a specific runway,
wherein:
at least one first light emitter (6) of the at least one geographically positioned light emitter (4, 6, 8) is arranged to emit light to a designated position in space, said light comprising at least three light beams (B1-B3),
a first beam (B1) being a central beam, which indicates a designated glideslope, and at least a second beam (B2) and third beam (B3) indicating that said airborne vehicle (1) is positioned under or above the designated glideslope, respectively, and
the control unit is configured to: (i) determine a geographical coordinate and possible orientation relating to the designated position in space and (ii) determine the designated glideslope, geographical coordinate and possible orientation based on a georeferenced model of the environment.