A brake disk lock includes a claw comprising a first claw section and a second claw section movable relative to each other between an open position and a closed position of the claw, wherein, in the closed position, the claw comprises a predetermined clearing width so as to engage around a section of a brake disk of a two-wheeled vehicle. Further, the brake disk lock comprises a locking mechanism which is configured to lock the claw in the closed position, and an adjustment device configured to adjust the predetermined clearing width of the claw to different brake disks.

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.

An anti-theft method for an electric vehicle is provided. The anti-theft method for an electric vehicle includes the following steps. An electronic anti-theft function is activated. Whether the electric vehicle is moving is determined. Whether the temperature of the motor is greater than a critical value is determined. When the temperature of the motor of the electric vehicle exceeds the critical value, the motor is reversed to generate a reverse resistance.

An anti-theft method for an electric vehicle is provided. The anti-theft method for an electric vehicle includes the following steps. An electronic anti-theft function is activated. Whether the electric vehicle is moving is determined. Whether the temperature of the motor is greater than a critical value is determined. When the temperature of the motor of the electric vehicle exceeds the critical value, the motor is reversed to generate a reverse resistance.

According to an embodiment of the present invention, An electric bicycle theft detection system includes: a pedal; a pedal rotation speed detector configured to measure a rotation speed of the pedal; a driving wheel configured to rotate by receiving power; a motor configured to rotate the driving wheel; a driving wheel rotation speed detector configured to measure the rotation speed of the driving wheel; a control device configured to detect theft based on the rotation speed of the pedal, a torque of the motor, and the rotation speed of the driving wheel; and a user interface device configured to generate a warning signal when the control device detects the theft.

According to an embodiment of the present invention, An electric bicycle theft detection system includes: a pedal; a pedal rotation speed detector configured to measure a rotation speed of the pedal; a driving wheel configured to rotate by receiving power; a motor configured to rotate the driving wheel; a driving wheel rotation speed detector configured to measure the rotation speed of the driving wheel; a control device configured to detect theft based on the rotation speed of the pedal, a torque of the motor, and the rotation speed of the driving wheel; and a user interface device configured to generate a warning signal when the control device detects the theft.

The disclosed computer-implemented method may include a magnetic insertable lock component with a magnet-sensing lock housing. By using a magnet within a pin and a magnetic field sensor within the lock housing, the apparatus may accurately detect the state of the lock. In some embodiments, the apparatus may determine the pin is inserted fully into the lock, the pin is inserted partially into the lock, the pin is not inserted in the lock, and/or that a foreign object that is not the pin is inserted into the lock. By using a magnet within the pin to track the state of the lock, the apparatus may improve both the user experience and the security of the lock. Various other methods, systems, and computer-readable media are also disclosed.

An alarm device for preventing theft of a vehicle having a kickstand support attached to the vehicle having: a housing associated with the kickstand support; a pressure sensing component located associated with the housing and adjacent an end of the kickstand for detecting a force of the kickstand on a ground surface, the pressure sensing component including a surface area for contacting the ground surface when the kickstand is in the deployed position; a controller in electronic communication with the pressure sensor for determining whether the kickstand is in contact with the ground surface based on measurements from the pressure sensing component; a communications module in electronic communication with the controller for wirelessly communicating with a user device. The controller generates an alarm when the kickstand is in the deployed position and determines that the force of the kickstand on the ground has changed by a threshold amount.

An alarm device for preventing theft of a vehicle having a kickstand support attached to the vehicle having: a housing associated with the kickstand support; a pressure sensing component located associated with the housing and adjacent an end of the kickstand for detecting a force of the kickstand on a ground surface, the pressure sensing component including a surface area for contacting the ground surface when the kickstand is in the deployed position; a controller in electronic communication with the pressure sensor for determining whether the kickstand is in contact with the ground surface based on measurements from the pressure sensing component; a communications module in electronic communication with the controller for wirelessly communicating with a user device. The controller generates an alarm when the kickstand is in the deployed position and determines that the force of the kickstand on the ground has changed by a threshold amount.

The disclosed computer-implemented method may include a magnetic insertable lock component with a magnet-sensing lock housing. By using a magnet within a pin and a magnetic field sensor within the lock housing, the apparatus may accurately detect the state of the lock. In some embodiments, the apparatus may determine the pin is inserted fully into the lock, the pin is inserted partially into the lock, the pin is not inserted in the lock, and/or that a foreign object that is not the pin is inserted into the lock. By using a magnet within the pin to track the state of the lock, the apparatus may improve both the user experience and the security of the lock. Various other methods, systems, and computer-readable media are also disclosed.