Abstract: A monitoring bracelet worn on an infant includes a camera, a prompter, a storage, and a processor. The processor controls the camera, when an object is grasped in a hand of the infant, to capture an image of the object. The processor analyzes size dimensions of the object according to the image and determines whether the object is able to fit inside the mouth of the infant, controls the camera to detect the object in real time when the object is determined to be able to fit inside the mouth of the infant and detects whether the mouth of the infant is opened, and controls the prompter to emit a prompt when the camera detects that the object is held steady in the hand of the infant and the mouth of the infant is opened.

Abstract: A monitoring bracelet worn on an infant includes a camera, a prompter, a storage, and a processor. The processor controls the camera, when an object is grasped in a hand of the infant, to capture an image of the object. The processor analyzes size dimensions of the object according to the image and determines whether the object is able to fit inside the mouth of the infant, controls the camera to detect the object in real time when the object is determined to be able to fit inside the mouth of the infant and detects whether the mouth of the infant is opened, and controls the prompter to emit a prompt when the camera detects that the object is held steady in the hand of the infant and the mouth of the infant is opened.

Abstract: A method for measuring three dimensional coordinates of each of points on a surface of an object includes pre-storing an algorithm that includes a plurality of parameters. A driving device is controlled to drive a distance sensor to move to each of measuring positions, and a first distance between each of the points and the distance sensor is obtained using the distance sensor. Each position information of the distance sensor is obtained using a position sensor, when the distance sensor is located at each of the measuring positions. Once a parameter of a reference coordinate is determined, the three dimensional coordinates of each of the points is computed using the algorithm based on the plurality of parameters.

Abstract: An electronic bracelet includes a wristband including a first layer and a second layer. The second layer is rotatable relative to the first layer. One of the first layer and the second layer includes a number of permanent magnets. The other of the first layer and the second layer includes a number of coils. A control module is fixed on the wristband. The second layer rotates relative to the first layer to generate electricity for the control module.

Abstract: An electronic bracelet includes a wristband including a first layer and a second layer. The second layer is rotatable relative to the first layer. One of the first layer and the second layer includes a number of permanent magnets. The other of the first layer and the second layer includes a number of coils. A control module is fixed on the wristband. The second layer rotates relative to the first layer to generate electricity for the control module.

Abstract: A method for measuring three dimensional coordinates of each of points on a surface of an object includes pre-storing an algorithm that includes a plurality of parameters. A driving device is controlled to drive a distance sensor to move to each of measuring positions, and a first distance between each of the points and the distance sensor is obtained using the distance sensor. Each position information of the distance sensor is obtained using a position sensor, when the distance sensor is located at each of the measuring positions. Once a parameter of a reference coordinate is determined, the three dimensional coordinates of each of the points is computed using the algorithm based on the plurality of parameters.

Abstract: A mouse pad with a touch detection function includes a communication unit, a first ultrasonic unit, a second ultrasonic unit, and a processor including a detection module, a selection module, a calculating module, and a determining module, the detection module detects whether the first ultrasonic unit and second ultrasonic unit receive reflection waves, and determines that an object is touching the mouse pad when the first ultrasonic unit and second ultrasonic unit receive the reflection waves, the selection module selects a predetermined number of first reflection waves and second reflection waves, the calculating module establishes a rectangular coordinates system, and determines coordinate values of the first reflection points and second reflection points, the determining module determines the reflection points having the same coordinate value at a first predetermined interval, selects a reflection point from the determined reflection points as a detection point.