Abstract: A method for retrofitting exercise machines includes removably attaching a sensor module to a moving part of an exercise machine, the sensor module being configured to detect movements of the moving part and transmit the detected data by a first wireless communication connection, placing a control module in a vicinity of yet separated from the exercise machine, the control module being configured to receive the detected data, calculate an angle value and a speed range using the detected data and transmit the angle value and the speed range by a second wireless communication connection, providing a remote cloud-based application server configured to receive the angle value and the speed range via the second wireless communication connection, verify a user, produce data packets based on the angle value, the speed range and the verified user information and transmit the data packets to a display device.

Abstract: A brewing guide device is provided having a communication device, a processing device, and a display device. The communication device obtains real-time weight information and real-time time information from an electronic scale. In a first brewing stage, the processing device determines whether the flow rate is higher than, equal to or lower than a first threshold according to the real-time weight information and the real-time time information to generate a first display instruction. According to the first instruction, the display device displays a first water line corresponding to the real-time weight information, a first target line corresponding to the first brewing stage, and a first display pattern corresponding to a first display block below the first target line on a display interface, wherein the level of the first water line is lower than or equal to the first target line.

Abstract: A joint bending state determining device comprises a sensor group and a processor. The sensor group comprises first and second gravity sensors. The first/second gravity sensor generates a first/second polar angle and a first/second azimuth angle. The processor obtains a first length corresponding to the first gravity sensor and a second length corresponding to the second gravity sensor, obtains a set of coordinates of a joint in a coordinate system according to the first polar angle, the first azimuth angle and the first length, obtains a set of coordinates of the second gravity sensor in the coordinate system according to the set of coordinates of the joint, the second polar angle, the second azimuth angle and the second length, and obtains a joint angle according to the set of coordinates of the second gravity sensor in the coordinate system, the first length and the second length.

Abstract: A method for retrofitting exercise machines includes removably attaching a sensor module to a moving part of an exercise machine, the sensor module being configured to detect movements of the moving part and transmit the detected data by a first wireless communication connection, placing a control module in a vicinity of yet separated from the exercise machine, the control module being configured to receive the detected data, calculate an angle value and a speed range using the detected data and transmit the angle value and the speed range by a second wireless communication connection, providing a remote cloud-based application server configured to receive the angle value and the speed range via the second wireless communication connection, verify a user, produce data packets based on the angle value, the speed range and the verified user information and transmit the data packets to a display device.

Abstract: A brewing guide device is provided. The brewing guide device includes a communication device, a processing device, and a display device. The communication device obtains real-time weight information and real-time time information from an electronic scale. In a first brewing stage, the processing device determines whether the flow rate is higher than, equal to or lower than a first threshold according to the real-time weight information and the real-time time information to generate a first display instruction. According to the first instruction, the display device displays a first water line corresponding to the real-time weight information, a first target line corresponding to the first brewing stage, and a first display pattern corresponding to a first display block below the first target line on a display interface, wherein the level of the first water line is lower than or equal to the first target line.

Abstract: A joint bending state determining device comprises a sensor group and a processor. The sensor group comprises first and second gravity sensors. The first/second gravity sensor generates a first/second polar angle and a first/second azimuth angle. The processor obtains a first length corresponding to the first gravity sensor and a second length corresponding to the second gravity sensor, obtains a set of coordinates of a joint in a coordinate system according to the first polar angle, the first azimuth angle and the first length, obtains a set of coordinates of the second gravity sensor in the coordinate system according to the set of coordinates of the joint, the second polar angle, the second azimuth angle and the second length, and obtains a joint angle according to the set of coordinates of the second gravity sensor in the coordinate system, the first length and the second length.