Abstract: The invention relates to the field of tire pressure detection technologies, and discloses a tire pressure sensor including: a valve assembly including a mounting portion and an elastic telescopic structure mounted to the mounting portion, the elastic telescopic structure elastically extending and retracting on at least one side of the mounting portion; a sensor assembly having two opposite clamping surfaces, at least one of the two clamping surfaces being provided with a locking hole, the mounting portion being located between two of the clamping surfaces, and the elastic telescopic structure being inserted into the locking hole. After the elastic telescopic structure is shortened, the mounting portion of the valve assembly may be inserted between the two clamping surfaces.

Abstract: Embodiments of the present invention relate to the field of diagnostic technologies of a vehicle, and specifically disclose a diagnostic method for a vehicle. The method includes: receiving, by a diagnostic server, a connection request message sent by a terminal, the connection request message being used to request address information of a diagnostic server corresponding to a to-be-diagnosed vehicle; determining the corresponding diagnostic server according to the connection request message; and sending the address information of the diagnostic server to the terminal, so that the terminal establishes a communication connection with the diagnostic server according to the address information. According to the foregoing technical solutions, in the embodiments of the present invention, a plurality of vehicle can be diagnosed by using the terminal, improving diagnostic efficiency and achieving relatively high user experience.

Abstract: The present invention relates to the technical field of automobile maintenance and device calibration, discloses an on-board radar calibration device, the on-board radar calibration device including a laser-corner reflecting apparatus. The laser-corner reflecting apparatus includes a laser and a corner reflector, the corner reflector being mounted to the laser. The laser is configured to emit a laser, so as to calibrate positions of the corner reflector and an on-board radar. The corner reflector is configured to reflect a radar wave emitted by the on-board radar, so that the radar wave returns along an original path, to calibrate an installation angle of the on-board radar. In the present invention, the corner reflector and the on-board radar may be calibrated using the laser, and then the on-board may be calibrated using the corner reflector, without the help of other calibration apparatuses, simplifying operations for calibrating the on-board radar.

Abstract: The present invention relates to the technical field of automobile maintenance and device calibration, and discloses a calibration device of an automobile assistance system, the radar calibration device including a support assembly, a beam assembly, and a sliding member. The beam assembly is mounted to the support assembly and may move relative to the support assembly along a vertical direction. The sliding member is mounted to the beam assembly and may move relative to the beam assembly along a horizontal direction.

Abstract: The present invention relates to the technical field of vehicle maintenance and device calibration, and discloses a vehicle-mounted radar calibration device and method. The vehicle-mounted radar calibration device includes a bracket apparatus and a radar calibration component. The radar calibration component is configured to be installed on the bracket apparatus and includes a base board. After calibration on the vertical plane of the base board is completed, the radar calibration component is configured to reflect a radar wave, emitted by a vehicle-mounted radar of a to-be-calibrated vehicle, to the vehicle-mounted radar, to calibrate the vehicle-mounted radar. In the present invention, after the vertical plane of the base board is calibrated, the radar calibration component is used to reflect the radar wave emitted by the vehicle-mounted radar to the vehicle-mounted radar.