Abstract: An automatic stair-climbing robot platform is provided. The automatic stair-climbing robot platform of the present invention includes a personal computer module; a USB-CAN interface module; a motor module, including a plurality of motors and controlled by the USB-CAN interface module; a KINECT sensor module, obtaining point cloud data and image data by sensing a terrain ahead and transmitting the point cloud data and image data to the personal computer module; a first inertial measurement unit, measuring a body tilt of the KINECT sensor module, and transmitting data of the body tilt of the KINECT sensor module to the personal computer module; and a second inertial measurement unit, measuring a body tilt of the automatic stair-climbing robot platform, and transmitting data of the body tilt of the automatic stair-climbing robot platform to the personal computer module.

Abstract: An automatic stair-climbing robot platform is provided. The automatic stair-climbing robot platform of the present invention includes a personal computer module; a USB-CAN interface module; a motor module, including a plurality of motors and controlled by the USB-CAN interface module; a Kinect sensor module, obtaining point cloud data and image data by sensing a terrain ahead and transmitting the point cloud data and image data to the personal computer module; a first inertial measurement unit, measuring a body tilt of the Kinect sensor module, and transmitting data of the body tilt of the Kinect sensor module to the personal computer module; and a second inertial measurement unit, measuring a body tilt of the automatic stair-climbing robot platform, and transmitting data of the body tilt of the automatic stair-climbing robot platform to the personal computer module.

Abstract: A key with efficiency of depth and scattered light has a key body and a light-shading layer. The key body has a key surface and a key back surface opposite to the key surface, and a pattern is formed on the key surface. The light-shading layer is partially light transmissible and covers over the key back surface. The light-shading layer has a first transparent pattern area, which is located corresponding to the patter. The area of first transparent pattern area is greater than or equal to that of the pattern.

Abstract: A magnetic lock device is installed on a first body and a second body. The first body is connected pivotally to the second body. The magnetic lock device comprises at least one first element, at least one second element and at least one control module. In this case, the first element is located on the first body. The second element is located on the second body. When the first body and the second body are closed, the second element is in a first position and the first element faces to the second element for providing a magnetic attraction between the first body and the second body. The control module is located on the second body and connects to the second element. When a force in a first direction moves the control module, the control module drives the second element to leave the first position.