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: 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.

Abstract: A lock communication system may include a server and a lock controller disposed on a shared bicycle. The lock controller may include a main control module and a network module. The main control module may control a periodic heartbeat of the network module and maintain a constant connection between the network module and the server. The lock controller may further include a power supply and a short message module which are connected to the main control module. The main control module may obtain electricity from the power supply, and enter a power saving mode when the electricity quantity left in the power supply is lower than a preset threshold, or otherwise enter a normal mode.

Abstract: A multimedia system may include a main control unit of a bicycle lock, a display unit, and a cloud server. The display unit may include a plurality of display screens. The main control unit may report an electric quantity of the shared bicycle to the cloud server when the bicycle lock is unlocked. The cloud server may send multimedia information to the main control unit when the shared bicycle is at a high level of electric quantity. The main control unit may refrain from turning on the display unit when the shared bicycle is at a low level of electric quantity. The multimedia system may turn on or off a display screen according to the electric quantity of the shared bicycle, and the display screen may display the multimedia information for advertising. The multimedia system may further include a navigation module to provide navigation for users and facilitate user travel.

Abstract: The present disclosure relates to a multimedia system of a shared bicycle. The multimedia system includes a lock main control unit, a cloud server, and a display unit. The display unit includes a navigation module, a multimedia module, and a mode switching module. The multimedia module includes a data switching sub-module. The mode switching module is configured to switch to a navigation mode or a multimedia mode. The data switching sub-module is configured to switch multimedia information. The display unit broadcasts the multimedia information to achieve advertising purposes. The navigation module provides navigation for a user, which is convenient for the user to travel and can avoid a dangerous behavior of the user. In addition, the data switching sub-module controls the multimedia system to broadcast different multimedia information in different time periods, different environments and different regions, thereby further improving the user experience.

Abstract: The present disclosure relates to the field of shared bicycles, and particularly relates to a heartbeat control system for shared bicycles. The heartbeat control system may include a server configured to divide an area that includes the shared bicycles into a plurality of parking zones based on a virtual map and determine an off-peak period and a peak period of each of the plurality of parking zones, and a lock control device mounted on one of the shared bicycles. The lock control device may include a network module that is periodically actuated by the lock control device. The lock control device may be configured to obtain, based on a parking zone of the shared bicycle, an off-peak period and a peak period corresponding to the parking zone, and extend an actuation frequency during the off-peak period.

Abstract: The embodiments of the present disclosure relate to the field of shared vehicles, and in particular, to a ringtone download and play system for a shared vehicle. The ringtone download and play system may include a lock and a cloud server disposed on the shared vehicle. The ringtone download and play system may further include a control unit disposed on the cloud server and a processing unit disposed on the shared vehicle. The cloud server may store a ringtone that is to be played in response to an operation performed on the shared vehicle. The control unit may send an instruction for downloading the ringtone to the processing unit according to an identifier of the shared vehicle. The processing unit may download the ringtone according to the instruction, and play the ringtone when the operation is performed on test shared vehicle. The ringtone play system may play different ringtones according to different scenarios, and a user may perform different operations on the shared vehicle based on ringtones.

Abstract: The present disclosure relates to the field of shared bicycles, and particularly relates to a heartbeat control system for shared bicycles. The heartbeat control system may include a server configured to divide an area that includes the shared bicycles into a plurality of parking zones based on a virtual map and determine an off-peak period and a peak period of each of the plurality of parking zones, and a lock control device mounted on one of the shared bicycles. The lock control device may include a network module that is periodically actuated by the lock control device. The lock control device may be configured to obtain, based on a parking zone of the shared bicycle, an off-peak period and a peak period corresponding to the parking zone, and extend an actuation frequency during the off-peak period.

Abstract: A lock communication system may include a server and a lock controller disposed on a shared bicycle. The lock controller may include a main control module and a network module. The main control module may control a periodic heartbeat of the network module and maintain a constant connection between the network module and the server. The lock controller may further include a power supply and a short message module which are connected to the main control module. The main control module may obtain electricity from the power supply, and enter a power saving mode when the electricity quantity left in the power supply is lower than a preset threshold, or otherwise enter a normal mode.

Abstract: A multimedia system may include a main control unit of a bicycle lock, a display unit, and a cloud server. The display unit may include a plurality of display screens. The main control unit may report an electric quantity of the shared bicycle to the cloud server when the bicycle lock is unlocked. The cloud server may send multimedia information to the main control unit when the shared bicycle is at a high level of electric quantity. The main control unit may refrain from turning on the display unit when the shared bicycle is at a low level of electric quantity. The multimedia system may turn on or off a display screen according to the electric quantity of the shared bicycle, and the display screen may display the multimedia information for advertising. The multimedia system may further include a navigation module to provide navigation for users and facilitate user travel.

Abstract: The present disclosure relates to the field of shared bicycles, and in particular, to a multimedia system of a shared bicycle. The multimedia system may include a lock main control unit, a cloud server, a display unit and a short message unit. The lock main control unit may be connected to the cloud server, the display unit and the short message unit, respectively. The display unit may include a storage device. The lock main control unit may detect a stored content of the storage device, and may control the short message unit to send a push signal to the cloud server when the stored content does not include multimedia data. The cloud server may send the multimedia data to the storage device based on the push signal. The lock main control unit may control the display unit to turn on when a lock of the shared bicycle is unlocked, and may control the display unit to turn off when the shared bicycle ends a trip.

Abstract: The present disclosure relates to a multimedia system of a shared bicycle. The multimedia system includes a lock main control unit, a cloud server, and a display unit. The display unit includes a navigation module, a multimedia module, and a mode switching module. The multimedia module includes a data switching sub-module. The mode switching module is configured to switch to a navigation mode or a multimedia mode. The data switching sub-module is configured to switch multimedia information. The display unit broadcasts the multimedia information to achieve advertising purposes. The navigation module provides navigation for a user, which is convenient for the user to travel and can avoid a dangerous behavior of the user. In addition, the data switching sub-module controls the multimedia system to broadcast different multimedia information in different time periods, different environments and different regions, thereby further improving the user experience.