Sideways movement method for pool cleaning apparatus and corresponding pool cleaning apparatus

Abstract

Disclosed are a method for a pool cleaning apparatus to move sideways and a corresponding pool cleaning apparatus. The method may include: if the condition for the pool cleaning apparatus to move sideways is satisfied, controlling the pool cleaning apparatus to enter a sideways movement operating mode, so that the pool cleaning apparatus moves towards one side, and in the sideways movement operating mode, controlling a discharging pump to provide a thrust to a side opposite the one side; in the sideways movement operating mode, controlling the pool cleaning apparatus to drive the driving wheels on both sides at a target rotational speed difference, so that the pool cleaning apparatus is tilted towards the one side.

What is claimed is: 
     
         1 . A sideways movement method for a pool cleaning apparatus, comprising: 
 in response to a condition for the pool cleaning apparatus to move sideways is satisfied, controlling at least one discharging pump and driving wheels arranged on both sides of a body of the pool cleaning apparatus to enter a sideways movement operating mode, so that the pool cleaning apparatus moves towards one side;   wherein in the sideways movement operating mode,    the driving wheels are driven at a target rotational speed difference so that the pool cleaning apparatus is tilted towards the one side.   
     
     
         2 . The sideways movement method according to  claim 1 , wherein the condition comprises at least one of the pool cleaning apparatus being within a preset range of a waterline, the pool cleaning apparatus arriving at a predetermined location, the pool cleaning apparatus detecting an obstacle, or the pool cleaning apparatus receiving a specific task. 
     
     
         3 . The sideways movement method according to  claim 1 , wherein in the sideways movement operating mode, the at least one discharging pump is controlled to provide a thrust to a side opposite the one side. 
     
     
         4 . The sideways movement method according to  claim 2 , wherein the pool cleaning apparatus being in the preset range of the waterline, comprises at least one of a part of the pool cleaning apparatus being detected as beyond a water surface by a water detecting component, or a motor power of the at least one discharging pump of the pool cleaning apparatus being detected as in the preset range. 
     
     
         5 . The sideways movement method according to  claim 2 , wherein the pool cleaning apparatus arriving at the predetermined location comprises at least one of the pool cleaning apparatus being located at stairs or at a junction of a wall and a bottom of a pool. 
     
     
         6 . The sideways movement method according to  claim 2 , wherein if the pool cleaning apparatus detects the obstacle, the pool cleaning apparatus is controlled to move sideways to bypass the obstacle. 
     
     
         7 . The sideways movement method according to  claim 2 , wherein the pool cleaning apparatus receiving the specific task comprises receiving a sideways movement instruction from a user. 
     
     
         8 . The sideways movement method according to  claim 1 , wherein the target rotational speed difference makes forces applied to the body of the pool cleaning apparatus balanced and the body of the pool cleaning apparatus remain tilted at a waterline. 
     
     
         9 . The sideways movement method according to  claim 1 , wherein the pool cleaning apparatus is tilted toward the one side in an angle, and the angle is based on at least one of a shape of the pool cleaning apparatus, weight of the pool cleaning apparatus, wall conditions of a pool, driving power of the driving wheels, or a preset cleaning efficiency. 
     
     
         10 . The sideways movement method according to  claim 1 , wherein an angle in which the pool cleaning apparatus is tilted toward the one side is within a predetermined range. 
     
     
         11 . The sideways movement method according to  claim 1 , wherein the at least one discharging pump comprises a first discharging pump and a second discharging pump, and controlling the at least one discharging pump to enter the sideways movement operating mode comprises at least one of increasing power of the first discharging pump, decreasing power of the second discharging pump, or turning off the second discharging pump. 
     
     
         12 . The sideways movement method according to  claim 1 , further comprising: controlling the pool cleaning apparatus to move backward upon a preset condition for the sideways movement of the pool cleaning apparatus being satisfied. 
     
     
         13 . The sideways movement method according to  claim 12 , wherein the preset condition comprises at least one of moving sideways for a predetermined time period or a predetermined distance, or the pool cleaning apparatus detecting an arrival at a destination by the sideway movement. 
     
     
         14 . The sideways movement method according to  claim 13 , wherein during the sideways movement, the pool cleaning apparatus cleans a waterline of a sidewall of a pool, and the destination of the sideways movement is an end of the waterline of the sidewall. 
     
     
         15 . The sideways movement method according to  claim 1 , wherein during the sideways movement operating mode, in response to a posture of the pool cleaning apparatus being detected as abnormal, the method further comprises: 
  adjusting the posture of the pool cleaning apparatus, stopping sideways movement of the pool cleaning apparatus, controlling the pool cleaning apparatus to climb down a sidewall of a pool, or turning off the at least one discharging pump of the pool cleaning apparatus.   
     
     
         16 . The sideways movement method according to  claim 15 , wherein the posture of the pool cleaning apparatus is obtained through data from at least one of an accelerometer, an Inertial Measurement Unit, IMU, or a position sensor. 
     
     
         17 . The sideways movement method according to  claim 12 , wherein controlling the pool cleaning apparatus to move backward comprises controlling the pool cleaning apparatus to enter a backward movement operating mode, so that the pool cleaning apparatus moves backward along a wall of a pool and towards a bottom of the pool. 
     
     
         18 . The sideways movement method according to  claim 17 , wherein in the backward movement operating mode, thrusts provided by the at least one discharging pump along both sides of a longitudinal axis of the body of the pool cleaning apparatus are basically balanced. 
     
     
         19 . The sideways movement method according to  claim 17 , wherein in the backward movement operating mode, the pool cleaning apparatus is controlled to drive the driving wheels on both sides at a same rotational speed. 
     
     
         20 . A pool cleaning apparatus comprising: 
 at least one sensor configured to detect whether a condition for the pool cleaning apparatus to move sideways is satisfied;   at least one discharging pump configured to discharge water on at least one side;   driving wheels arranged on both sides of a body of the pool cleaning apparatus; and   a controller comprising hardware, the controller being configured to control the at least one discharging pump and the driving wheels to enter a sideways movement operating mode based on a detection result of the at least one sensor, so that the pool cleaning apparatus moves to one side,    wherein, in the sideways movement operating mode,    the driving wheels are driven at a rotational speed difference so that the pool cleaning apparatus is tilted towards the one side.