Structure and method for controlling solar energy board

Abstract

Disclosed is a structure and method for controlling a solar energy board. The structure includes a first shaft, a first encoder, a connecting rod, a first motor and a controller. The first shaft is used to control vertical rotation of the solar energy board. The first encoder is disposed at the first shaft to read a vertical rotation angle of the solar energy board. The connecting rod is connected to one side of the solar energy board. The first motor is disposed at the connecting rod to move the connecting rod so that the solar energy board is driven to rotate in the vertical direction. The controller is respectively connected to the first encoder and the first motor so as to activate or deactivate the first motor according to the vertical rotation angle read from the first encoder.

1 . A structure for controlling a solar energy board comprising:
 a first shaft controlling a vertical rotation of the solar energy board;   a first encoder disposed at the first shaft for reading a vertical rotation angle of the solar energy board;   a connecting rod connected to one side of the solar energy board;   a first motor disposed at the connecting rod for moving the connecting rod so that the solar energy board is driven to rotate in the vertical direction; and   a controller respectively connected to the first encoder and the first motor so as to activate or deactivate the first motor according to the vertical rotation angle read from the first encoder.   
     
     
         2 . The structure according to  claim 1 , wherein the controller generates a predetermined vertical rotation angle of the solar energy board according to a built-in solar tracking data and compares the predetermined vertical rotation angle with the vertical rotation angle read from the first encoder so as to activate or deactivate the first motor so that the connecting rod drives the solar energy board to rotate to the predetermined vertical rotation angle. 
     
     
         3 . The structure according to  claim 1 , wherein the first motor and the first encoder are disposed separately. 
     
     
         4 . The structure according to  claim 1 , further comprising an optical sensor for sensing a solar position at the initial time, thereby setting the reference point of the solar energy board. 
     
     
         5 . The structure according to  claim 1 , further comprising:
 a second shaft for controlling a horizontal rotation of the solar energy board;   a second motor disposed at the second shaft to rotate the second shaft so that the solar energy board is driven to rotate in the horizontal direction; and   a second encoder for reading a horizontal rotation angle of the solar energy board or a turn number of the second motor.   
     
     
         6 . The structure according to  claim 5 , wherein the controller is respectively connected to the second encoder and the second motor so as to activate or deactivate the second motor according to the horizontal rotation angle read from the second encoder or the turn number of the second motor. 
     
     
         7 . The structure according to  claim 6 , wherein the controller generates a predetermined horizontal rotation angle of the solar energy board according to a built-in solar tracking data and compares the predetermined horizontal rotation angle with the horizontal rotation angle read from the second encoder so as to activate or deactivate the second motor so that the solar energy board is driven to rotate to the predetermined horizontal rotation angle. 
     
     
         8 . The structure according to  claim 5 , wherein the controller generates a predetermined horizontal rotation angle of the solar energy board according to a built-in solar tracking data, thereby computing a predetermined turn number of the second motor and compares the predetermined turn number with the turn number read from the second encoder so as to activate or deactivate the second motor so that the solar energy board is driven to rotate to the predetermined horizontal rotation angle. 
     
     
         9 . The structure according to  claim 5 , wherein the first motor or the second motor is a servo motor, stepping motor, AC motor or DC motor, and the first encoder or the second encoder is a magnetic encoder, optical encoder or reading sensor. 
     
     
         10 . The structure according to  claim 5 , further comprising a mechanical box connected to the second motor, wherein a ratio of the horizontal rotation angle of the solar energy board to the turn number of the second motor corresponds to an acceleration or deceleration ratio of the mechanical box. 
     
     
         11 . The structure according to  claim 5 , further comprising a mechanical box disposed at the first shaft or the second shaft, and the mechanical box is connected to the first encoder or the second encoder for enhancing the reading precision of the first encoder or the second encoder. 
     
     
         12 . The structure according to  claim 11 , wherein the mechanical box is an accelerative or decelerative mechanical box, and the mechanical box comprises a plurality of gears assembled together. 
     
     
         13 . The structure according to  claim 5 , further comprising a pillar-like or plate-like supporter for supporting the solar energy board. 
     
     
         14 . A method for controlling a solar energy board comprising steps of:
 providing a solar energy board connected with one side of a connecting rod;   computing a solar tracking data to generate a predetermined vertical rotation angle of the solar energy board;   activating a first motor to move the connecting rod for driving the solar energy board to rotate in the vertical direction;   reading a vertical rotation angle of the solar energy board by a first encoder;   comparing the predetermined vertical rotation angle with the vertical rotation angle read from the first encoder; and   deactivating the first motor when the predetermined vertical rotation angle being equal to the vertical rotation angle read from the first encoder.   
     
     
         15 . The method according to  claim 14 , wherein the solar energy board is driven to rotate in the vertical direction about the first shaft by the connecting rod, the first encoder is disposed at the first shaft, and the first motor is disposed at the connecting rod. 
     
     
         16 . The method according to  claim 14 , further comprising steps of:
 computing the solar tracking data to generate a predetermined horizontal rotation angle, or generating a predetermined turn number of a second motor according to the predetermined horizontal rotation angle;   activating a second motor to drive the solar energy board to rotate in the horizontal direction;   reading a horizontal rotation angle of the solar energy board or a turn number of the second motor by a second encoder;   comparing the predetermined horizontal rotation angle with the horizontal rotation angle read from the second encoder, or comparing the predetermined turn number with the turn number read from the second encoder; and   deactivating the second motor when the predetermined horizontal rotation angle is equal to the horizontal rotation angle, or when the predetermined turn number is equal to the turn number.   
     
     
         17 . The method according to  claim 16 , wherein the solar energy board is driven to rotate in the horizontal direction about a second shaft, and the second encoder is disposed at the second shaft to read the horizontal rotation angle of the solar energy board, or is coupled to the second motor to read the turn number of the second motor. 
     
     
         18 . The method according to  claim 16 , further comprising a step of providing an optical sensor for sensing solar position at the initial time, thereby setting the reference point of the solar energy board. 
     
     
         19 . The method according to  claim 16 , further comprising a step of providing a mechanical box connected with the second motor, wherein a ratio of the horizontal rotation angle of the solar energy board to the turn number of the second motor corresponds to acceleration or deceleration ratio of the mechanical box. 
     
     
         20 . The method according to  claim 16 , further comprising a step of providing a mechanical box connected with the first encoder or the second encoder for enhancing the reading precision of the first encoder or the second encoder.