Abstract: The disclosure provides an autonomous vehicle semantic map establishment system and an autonomous vehicle semantic map establishment method. The autonomous vehicle semantic map establishment system includes an image capturing module, a positioning module, a memory, and a processor. The image capturing module acquires a current road image. The positioning module acquires positioning data corresponding to the current road image. The memory stores three-dimensional (3D) map data. The 3D map data includes multiple point cloud data. The processor accesses the memory. The processor analyzes the current road image, to identify object information of a specific traffic object in the current road image. The processor marks, according to the positioning data, the object information of the specific object onto a plurality of corresponding points in the multiple point cloud data corresponding to the specific object in the 3D map data.

Abstract: An electric wheelchair, a control method thereof and a control system thereof are provided. The control method includes the following steps. Firstly, a control signal is outputted to the electric wheelchair by way of wireless according to a posture of a handheld controller. Then, the electric wheelchair performs a corresponding motion according to the control signal.

Abstract: An exercise bike and an operation method thereof are provided. In a test mode, a processing unit adjusts a resistance of a pedaling activity to be a plurality of pedaling resistances and obtains a plurality of psychological values respectively corresponding to the pedaling resistances by inquiring the user about a rate of perceived exertion. The processing unit calculates the psychological values to obtain a plurality of exercise intensities respectively corresponding to the pedaling resistances and further obtain a correspondence relationship between the exercise intensities and the pedaling resistances. After the test mode ends, the processing unit determines a recommended pedaling resistance according to the correspondence relationship. In a sport mode, the recommended pedaling resistance is provided to the user for performing the pedaling activity.

Abstract: An exercise bike and an operation method thereof are provided. In a test mode, a processing unit adjusts a resistance of a pedaling activity to be a plurality of pedaling resistances and measures user's physiological characteristics. The processing unit accordingly obtains a plurality of physiological values respectively corresponding to the pedaling resistances. The processing unit calculates the physiological values to obtain a plurality of exercise intensities respectively corresponding to the pedaling resistances and further obtain a correspondence relationship between the exercise intensities and the pedaling resistances. After the test mode ends, the processing unit determines a recommended pedaling resistance according to the correspondence relationship. In a sport mode, the recommended pedaling resistance is provided to the user for performing the pedaling activity.