Patent ID: 11953907
Assignee: NILFISK A/S
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A method for operating an autonomous surface treatment vehicle that includes an autonomy system for navigating the surface treatment vehicle and a safety system arranged to provide a safety stop in response to a detection signal from a scanning sensor, the method comprising:
switching (S_SSZA) from a first safety zone selection algorithm to a second special safety zone selection algorithm which selects a safety zone in a different way than the first safety zone selection algorithm;
selecting (S_SZ) a safety zone by the second safety zone selection algorithm, wherein the second safety zone selection algorithm is arranged to select a safety zone which allows a higher speed under the restriction of a more narrow direction angle compared to a safety zone selected by the first safety zone selection algorithm;
outputting (O_SD) speed and direction control signals from the autonomy system in accordance with a map or planned route;
controlling (C_SD) speed and direction of the surface treatment vehicle in response to the speed and direction control signals; and
operating (O_SFS) the safety system according to the safety zone selected by the second safety zone selection algorithm.