Research On The Laser Coal Stocktaking System

The paper analyzed the Laser coal stocktaking system,and introduced the basic theory and common methods.On the base of the theoretical analysis,an embedded-based laser coal stocktaking system was designed.The laser source and the CCD were fixed together on the two-dimensional table,and the laser source was scanning the coal when the table whirled horizontally and vertically.The CCD was used to take the picture of the laser spot on the surface.Because the CCD could only get the analog signals of the picture,VC302 card was used to change the analog signals to the digital signals,which were communicated to the development board.The development board controlled the VC302 to capture the pictures though the driver,and made the inputted digital signals reform to a picture,then reprocessed the picture to get the coordinate of the laser spot.When the laser scanned the coal,series of spots had been gotten,and the volume of the coal was calculated by using the method of triangulation.