US 11,900,801 B2
Generating a speeding ticket using a persistently stored character code in a camera for masking information about characters of a number plate of a vehicle
Martin Anton Oberhofer, Sindelfingen (DE); Florian Mentzel, Dortmund (DE); Hien Pham The, Munich (DE); and Thishanth Thevarajah, Stuttgart (DE)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Nov. 30, 2021, as Appl. No. 17/456,896.
Prior Publication US 2023/0169854 A1, Jun. 1, 2023
Int. Cl. H04L 9/08 (2006.01); G08G 1/054 (2006.01); G06Q 10/06 (2023.01); H04L 9/40 (2022.01)
CPC G08G 1/054 (2013.01) [G06Q 10/06 (2013.01); H04L 9/083 (2013.01); H04L 63/0428 (2013.01); H04L 2209/84 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A computer-implemented method for generating a speeding ticket, the method comprising:
generating a first image of at least a part of a vehicle by a first camera, wherein the first camera is arranged at a first position of a road, wherein the part of the vehicle comprises a number plate of the vehicle and the number plate comprises characters;
detecting a first set of the characters of the number plate of the vehicle dependent on the first image;
generating a secured file by the first camera using the first set of the characters of the number plate and a first character code, the secured file comprising a masked version of the first set of the characters of the number plate;
generating a second image of the part of the vehicle by a second camera, wherein the second camera is arranged at a second position of the road;
detecting a second set of the characters of the number plate dependent on the second image;
verifying whether the first set of the characters is equal to the second set of the characters, using the secured file;
checking whether the vehicle violates a speed limit dependent on information about an average speed of the vehicle between the first position and the second position;
generating the speeding ticket, in response to determining that the vehicle violates the speed limit and in response to verifying that the first set of the characters is equal to the second set of the characters;
generating a signature of the first set of the characters, using the first character code as a common private key of the first camera and the second camera, wherein the secured file comprises the signature of the first set of the characters;
generating a signature of the second set of the characters using the first character code;
comparing the signature of the first set of the characters with the signature of the second set of the characters;
wherein the first camera comprises a first persistent memory device storing a first character code and inaccessible from outside the first camera; and
wherein the second camera comprises a second persistent memory device storing the first character code and inaccessibly from outside the second camera.