Method and device for cleaning cubicles

1. A method of cleaning at least a part of a floor of a cubicle from a row of individual cubicles in a stable, each cubicle having a floor space, an open front end for access of an animal to the cubicle and lateral partitions extending in the longitudinal direction on each side of the cubicle, the method comprising the steps of:

providing an animal presence sensor arranged to detect the presence of an animal in an individual cubicle;

providing an autonomous unmanned vehicle, the vehicle comprising a control system for controlling the operation of the vehicle and a cubicle floor cleaning mechanism configured to clean a part of the cubicle floor, the control system being operatively coupled with the animal presence sensor, wherein the floor cleaning mechanism includes a telescopic carrier or hingeable arm;

detecting with the animal presence sensor a first of the individual cubicles free of an animal;

detecting with the animal presence sensor whether an animal is present in a second of the individual cubicles neighboring next to the first individual cubicle free of an animal; and

controlling the autonomous unmanned vehicle to clean at least a part of the floor of the first individual cubicle in a first cleaning mode that is dependent on the presence of an animal in said second neighboring individual cubicle,

wherein during cleaning at least part of the floor of said first individual cubicle, the autonomous unmanned vehicle keeps at least a predetermined safety distance to said second neighboring cubicle,

wherein if an animal is detected to be present in said second neighboring individual cubicle, the predetermined safety distance is between 15% and 50% of a width of an individual cubicle, and

wherein if no animal is detected to be present in said second neighboring individual cubicle, the predetermined safety distance is in a range of 0 to 15% of a width of an individual cubicle.

2. The method according to claim 1 , wherein the first individual cubicle is cleaned over a distance from the front end up to about 20% of a length of the cubicle.

3. The method according to claim 1 , further comprising the steps of:

detecting with the animal presence sensor at least two neighboring first and second individual cubicles free from animals and having a common lateral partition therebetween and each having a second lateral partition opposite to the common lateral partition;

generating a signal with said animal presence sensor for the control system of the autonomous unmanned vehicle regarding a position of said first and second individual cubicles;

under control of the control system, activating the cubicle floor cleaning mechanism; and

cleaning in a second cleaning mode at least a part of both the first and second individual cubicle floors in an area from the common lateral partition and extending at most until a predetermined safety distance from each of the second lateral partitions,

wherein the predetermined safety distance is selected as if an animal is present in individual cubicles of the row of individual cubicles that have said second lateral partition in common with the respective neighboring first and second individual cubicles.

4. The method according to claim 3 , wherein the cubicle floor cleaning mechanism is centered with respect to the common lateral partition.

5. The method according to claim 1 , wherein the control system of the autonomous unmanned vehicle is further provided with a stable route planner.

6. The method according to claim 1 , further comprising the step of the control system of the autonomous unmanned vehicle determining a position of the autonomous unmanned vehicle in a stable.

7. The method according to claim 1 , wherein the animal presence sensor is integrated in the autonomous unmanned vehicle.

8. The method according to claim 1 , wherein if an animal is detected to be present in said second neighboring individual cubicle, the predetermined safety distance is at least 20% of a width of an individual cubicle.

9. The method according to claim 1 , wherein if an animal is detected to be present in said second neighboring individual cubicle, the predetermined safety distance is at least 30% of a width of an individual cubicle.

10. The method according to claim 1 , wherein if an animal is detected to be present in said second neighboring individual cubicle, the predetermined safety distance is at most about 45% of a width of an individual cubicle.

11. The method according to claim 1 , wherein the first individual cubicle is cleaned over a distance from the front end up to about 25% of a length of the cubicle.