Levitated chess and method for controlling levitated movement of game pieces

Abstract

A levitated chess and a method for controlling the levitated movement of pieces are provided. The levitated chess includes a board; a plurality of pieces; and a piece driving base located inside the board, where, in response to a piece moving instruction, the piece driving base moves to a corresponding position below the piece to be moved; the piece driving base and the piece to be moved respectively generate repulsive magnetic forces against each other, so that the piece to be moved is levitated relative to the board; the piece driving base drives the piece to be moved to move to a placement position; and the piece driving base changes the generated magnetic force to enable the piece to be moved to fall down.

What is claimed is: 
     
         1 . A levitated chess, comprising:
 a board;   a plurality of pieces; and   a piece driving base located inside the board, where, in response to a piece moving instruction:
 the piece driving base moves to a corresponding position below the piece to be moved; 
 the piece driving base and the piece to be moved respectively generate repulsive magnetic forces against each other, so that the piece to be moved is levitated relative to the board; 
 the piece driving base drives the piece to be moved to move to a placement position; and 
 the piece driving base changes the generated magnetic force to enable the piece to be moved to fall down. 
   
     
     
         2 . The levitated chess of  claim 1 , wherein the piece comprises:
 a battery unit that powers each component in the piece;   an electromagnetic coil configured to generate a magnetic force when activated;   a wireless communication unit configured to receive activation instructions; and   a control unit configured to send control instructions to each component in the piece.   
     
     
         3 . The levitated chess of  claim 2 , wherein the piece further comprises:
 a wireless charging chip configured to utilize the electromagnetic coil to charge the battery unit when the piece is not activated.   
     
     
         4 . The levitated chess of  claim 2 , wherein the piece driving base comprises:
 an electromagnetic coil component configured to generate a magnetic force when actuated;   an electromagnetic sensor configured to detect the strength of the magnetic field generated by the electromagnetic coil inside the piece to be moved above the piece driving base; and   a control unit configured to send control instructions to each component in the piece driving base.   
     
     
         5 . The levitated chess of  claim 4 , wherein the electromagnetic coil component comprises at least four electromagnetic coils, and at least four electromagnetic coils are configured to generate a magnetic force so that under the combined effect of the magnetic forces generated by the at least four electromagnetic coils, the piece to be moved levitates relative to the board and maintain a position unchanged relative to the piece driving base during movement of the piece driving base. 
     
     
         6 . The levitated chess of  claim 4 , wherein the piece driving base further comprises an electronic coil group driving circuit for controlling the driving of each electromagnetic coil in the electromagnetic coil component according to a PWM signal output from the control unit so as to adjust the levitation height of the piece to be moved. 
     
     
         7 . The levitated chess of  claim 6 , wherein
 the control unit in the piece driving base determines the relative position of the piece to be moved from the electromagnetic sensor through the strength of the magnetic field generated by the electromagnetic coils inside the piece to be moved above the piece driving base and detected by the electromagnetic sensor; and by dynamically adjusting the magnetic force of each electromagnetic coil by adjusting the frequency and the duty cycle of the PWM signal corresponding to each electromagnetic coil, the relative position between the piece to be moved and the piece driving base dynamically maintains unchanged.   
     
     
         8 . The levitated chess of  claim 6 , wherein the levitation height is greater than the height of the piece so that the piece to be moved jumps over other pieces when moving with the piece driving base. 
     
     
         9 . The levitated chess of  claim 1 , wherein the board comprises a wireless charging coil for charging pieces put on the board. 
     
     
         10 . A method for controlling the levitated movement of pieces, comprising:
 in response to a piece moving instruction, controlling the piece driving base located inside the board to move to a corresponding position below the piece to be moved;   controlling the piece driving base and the piece to be moved to respectively generate repulsive magnetic forces against each other, so that the piece to be moved is levitated relative to the board;   controlling the piece driving base to drive the piece to be moved to move to a placement position; and   controlling the piece driving base to change the generated magnetic force to enable the piece to be moved to fall down.   
     
     
         11 . The method of  claim 10 , wherein controlling the piece driving base to drive the piece to be moved to move to a placement position further comprising:
 controlling the piece driving base to detect the strength of the magnetic field generated by the piece to be moved above the piece driving base; and   controlling the piece driving base to determine the relative position of the piece to be moved from the piece driving base through the detected magnetic field strength, and dynamically adjusting the magnetic force of each electromagnetic coil inside the piece driving base by adjusting the PWM signal corresponding to each electromagnetic coil in the piece driving base so as to dynamically maintain the relative position between the piece to be moved and the piece driving base unchanged.   
     
     
         12 . The method of  claim 10 , wherein the method further comprises:
 controlling the board to charge pieces put on the board.