Abstract: A method and device for controlling the magnetic resistance of an exercise bike, and an exercise bike are provided. The method for controlling magnetic resistance of an exercise bike includes: monitoring in real time a working state of an electromagnet, and judging by a control module whether a resistance provided by a magnetron wheel conforms to a currently set resistance, according to a monitoring result of the working state of the electromagnet and a relationship between the working state of the electromagnet and the resistance provided by the magnetron wheel; and the control module adjusting a working current of the electromagnet if the resistance provided by the magnetron wheel does not conform to the currently set resistance, to adjust a magnetic field strength of the electromagnet, so that the resistance provided by the magnetron wheel conforms to the currently set resistance.

Abstract: A handlebar device and an exercise bike are provided. The handlebar device comprises a handle assembly, an electric control clutch part, a base, a return part, and a return detection element, wherein the handle assembly comprises a handle, a pedestal and a rotating shaft, and the handle is fixedly connected to the pedestal, the rotating shaft has one end connected to the pedestal and the other end rotatably connected to the base, the electric control clutch part is connected between the rotating shaft and the base, so that the rotating shaft is fixed or rotatable relative to the base; the return part is connected between the pedestal and the base to make the base return to an initial position; and the return detection element is used to detect that the rotating shaft reaches the to-be-returned position and transmit it to the electric control clutch part.

Abstract: Provided are a fitness control system and a spinning bicycle. The system includes: a central controlling unit for detecting change information of each parameter of the fitness equipment; and a terminal device for controlling, according to the change information of each parameter of the fitness equipment, a virtual character to simulate movement of a user who uses the fitness equipment in the target fitness scene, and for real-time detecting during a virtual character simulates movement of the user, the road condition information in the target fitness scene, and feeding back to the central controlling unit a control signal matching a set condition. The central controlling unit is also configured to control, according to the control signal, the fitness equipment to generate feedback matching the influence.