4results about How to "Guaranteed ranging accuracy" patented technology

The utility model relates to an intelligent anti-slip brake shoe. The intelligent anti-slip brake shoe comprises a shoe body and an intelligent distance measuring device, the shoe body is provided with a containing cavity, and the intelligent distance measuring device is arranged in the containing cavity. Wherein the intelligent distance measuring device comprises a distance measuring part, a battery part, a control part and an indicating part, the battery part is electrically connected with the control part, and the control part is electrically connected with the distance measuring part and the indicating part; the distance measuring part is arranged on the surface, facing the wheel, of the shoe body and used for detecting the actual distance between the shoe body and the wheel and feeding back the actual distance to the control part; the control part controls the indicating part to act according to the actual distance, so that the indicating part indicates the mounting position of the shoe body. The installation position relation between the intelligent anti-slip iron shoe and the wheel is judged in an intelligent mode, the situation that the shoe body is damaged due to the operation problem is reduced, meanwhile, the anti-slip effect of the shoe body can be effectively utilized, convenience is provided for field workers, the operation difficulty is lowered, and the working efficiency is improved.

This invention discloses a calibration method, apparatus, device, and storage medium for an obstacle detection system, belonging to the field of vehicle calibration technology. When the vehicle is stationary, the invention controls a calibration obstacle to move along a slide rail. When the obstacle moves to a preset distance from an ultrasonic probe, the ultrasonic probe's frequency sweep function is activated, and the operating frequency of the ultrasonic probe after the sweep function is activated is recorded. The ultrasonic probe is then controlled to detect the obstacle according to the operating frequency, and the detection time and air parameters are recorded. The obstacle detection system is calibrated based on the preset distance, operating frequency, detection time, and air parameters. This provides factory online calibration of the obstacle detection system, adaptive calibration for the parameters of each ultrasonic sensor, and real-time secondary calibration during vehicle use. This improves signal strength and ensures ranging accuracy, thereby enhancing the safety of automatic side door opening and closing.

The invention discloses a follow-up type precise distance measurement and positioning device for a four-way shuttle vehicle, comprising a follow-up distance measuring wheel swing arm (3) movably arranged on a body (1) of the four-way shuttle vehicle, one end of the follow-up distance measuring wheel swing arm (3) being movably fixed by a swing arm rotating shaft (4) fixedly arranged on the body (1) of the four-way shuttle vehicle, and the follow-up distance measuring wheel swing arm (3) being freely rotatable around the swing arm rotating shaft (4), the other end of the follow-up distance measuring wheel swing arm (3) being fixedly arranged with a rotating shaft sleeve (18), the follow-up distance measuring wheel (5) being fixedly arranged on one end of the follow-up distance measuring wheel rotating shaft (6), and being movably arranged in the rotating shaft sleeve (18) by the follow-up distance measuring wheel rotating shaft (6), and the problem of inaccurate distance measurement and inaccurate positioning caused by deformation, wear, slippage and the like of the travel wheel during long-distance operation of the four-way shuttle vehicle is solved by the separately arranged follow-up distance measuring wheel.

The invention provides a real-time distance measurement method and device based on a UWB technology in a leveling process, and relates to the technical field of engineering surveying and mapping. According to the technical scheme provided by the invention, the initial cumulative confidence is determined according to the environment type by acquiring the ranging environment parameters, so that ranging environments with different qualities have differentiated confidence starting points. The current data quality is quantified by calculating discrete feature indexes in a continuous sampling period, and the current data quality is converted into a confidence increment value according to a mapping rule table to be accumulated into a target accumulated confidence coefficient. And when the target accumulated confidence reaches the target confidence threshold, sampling is automatically terminated, and target discrete ranging data is screened for distance calculation, so that excessive sampling in a good environment and insufficient sampling in a severe environment are avoided, and the ranging efficiency can be improved on the premise of ensuring the ranging precision corresponding to different measurement environments.