Automatic mower and control method thereof

Abstract

The invention provides an automatic mower. The automatic mower comprises a control unit, a first reference quantity collecting unit, a second reference quantity collecting unit and a comparing unit, wherein the control unit can control the automatic mower to execute an instruction of returning to a charging station; the first reference quantity collecting unit collects a first reference quantity;the second reference quantity collecting unit collects a second reference quantity; the comparing unit compares the first reference quantity with a second preset value; if the second reference quantity accumulates to the first preset value and the first reference quantity is not greater than the second preset value, the control unit controls the automatic mower to terminate executing the instruction of returning to the charging station. The automatic mower can accurately judge whether the automatic mower is in a state of rotating around an obstacle or not.

Description

technical field [0001] The invention relates to the technical field of ground processing appliances, in particular to an automatic lawn mower and a control method thereof. Background technique [0002] At present, with the acceleration of people's life rhythm, automated household appliances are becoming more and more popular, which can work according to the preset automatic work program, without the need for users to operate all the time, so that users can be relieved from heavy household tasks Come out and have more time for leisure. Among such automated household appliances, an automatic lawnmower mainly used in a home garden is favored by users because it can efficiently trim lawns. [0003] The automatic lawn mower can work by itself in the home garden. In order to prevent it from damaging other vegetation in the home garden, it needs to artificially set the working area so that it can work in the designated working area. In the current technology, the working area is ...

AI Technical Summary

Problems solved by technology

Therefore, when the automatic lawn mower executes the command to return to the charging station, it may encounter a wire of an obstacle, and mistake the wire of the obstacle as a wire of the boundary of the working area and continue to walk along the wire, thus falling into an endless loop , causing the grass around the obstacle to be repeatedly crushed and severely damaged

[0006] In order to solve this problem, the automatic lawn mower is usually equipped with a deflection detection component, through which the deflection amount of the automatic lawn mower is obtained, and the deflection amount is compared with the preset value, thereby judging whether the automatic lawn mower is moving around The obstacle rotates, but the existing deflection detection component cannot accurately obtain the actual deflection of the automatic lawn mower, so that there is a deviation when the automatic lawn mower judges whether to walk around the obstacle. In this way, the automatic lawn mower When working, on the one hand, it may be wrongly judged that it is in the state of turning around an obstacle, so as to leave the wire and re-execute the instruction of returning to the charging stand, which wastes time, affects work efficiency, and is more likely to fail to return to the charging station; It is in the state of turning around the obstacle without knowing it, so it continues to turn around the wire, rolling the grass around the obstacle many times

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