6results about How to "Accurate ranging" patented technology

The invention relates to the technical field of engineering surveying and mapping, and discloses a constructional engineering cost on-site surveying and mapping device based on an intelligent sensor, comprising a connecting block, a mounting rack mounted on the connecting block, a laser displacement sensor mounted on the mounting rack, and a support rotatably connected to the circumferential surface of the connecting block. Movement of the supports can drive the supporting legs to move synchronously, angle adjustment of the multiple supports can be controlled synchronously, angle adjustment of the supports can be achieved, it is ensured that surveying and mapping personnel can adjust the opening angles of the multiple supports to be the same angle, the situation that in the follow-up surveying and mapping process, the whole device topples over can be avoided, and the surveying and mapping efficiency is improved. The surveying and mapping accuracy can be improved, the laser displacement sensor is protected from being damaged by the field environment, the service life of equipment is prolonged, the consistency of surveying and mapping data is guaranteed, the reliability of the cost result is improved, and the surveying and mapping accuracy and stability of the device can be guaranteed.

The application discloses a dynamic target tracking and ranging method and system based on fusion matching, relates to the technical field of target tracking and identification, and specifically comprises the following steps: collecting video image data of a to-be-measured target and preprocessing; constructing a self-attention enhanced YOLOv8 target detection model to detect the to-be-measured target; predicting a next frame target estimation box of the video image data by using Kalman filtering, updating the target detection box, and positioning the to-be-measured target position; matching the predicted target estimation box with the current target detection box by using the Hungarian algorithm to establish the motion trajectory of the to-be-measured target; converting the coordinates of the to-be-measured target into coordinates in a robot world coordinate system according to the coordinates of the to-be-measured target in a tracking box sequence and based on the internal and external parameters of a camera; and calculating the distance of the to-be-measured target according to the coordinates in the robot world coordinate system. The application realizes accurate target positioning and ranging by converting the target from a pixel coordinate system to a world coordinate system, and solves the problem of inaccurate target distance calculation in a real-time dynamic environment.

The application discloses a kind of cargo crane positioning detection equipment and control method based on laser scanning, the cargo crane positioning detection equipment and control system of the present application have the characteristics such as simple operation, clear display, save manpower and time cost, real-time monitoring etc..Solve the problem that hoist in each industrial environment is due to system is huge and complex needs time and energy and the precision is poor.Laser scanning device and sensor system complement each other, make system ranging accurate, error is smaller, error can be less than 5%, have certain use value and popularization value, have certain use value and popularization value.

The utility model provides a kind of automatic pilot car of tidal flat fishery, including the bottom plate being located at the top of track assembly, and sensor assembly is fixed in the top of bottom plate by mounting seat, the mounting seat is screwed in the top of bottom plate, universal joint is screwed in the top of mounting seat, sensor assembly is located in the top of universal joint, the utility model is cooperated by universal joint and servo motor, so that sensor assembly keeps stable in bumpy environment, realizes accurate monitoring and obstacle avoidance, reaches the effect of improving tidal flat fishery operation efficiency and reducing artificial labor intensity.

The invention provides a coal mine power management system and method based on power line carrier communication, the system comprises a monitoring terminal and a plurality of power box devices, the monitoring terminal comprises a first power line carrier communication module, and communicates with each power box device based on power line carrier communication; the distance measuring module sends a distance measuring signal to each power box device and calculates the distance to each power box device based on the response signal; the addressing module allocates a unique address to each power box device according to the calculated distance information of each power box device; the management module monitors and manages the power box equipment based on the unique address; the power box equipment comprises a second power line carrier communication module which communicates with the first power line carrier communication module; the response unit receives and returns a response signal; the address storage unit stores address information, accurate ranging and automatic addressing of the power box equipment are achieved, the problems that traditional manual addressing is low in efficiency and prone to errors are solved, and the power management system has practicability.

The utility model relates to the technical field of stacker-reclaimer main bodies of cement plants, in particular to a cement plant stacker-reclaimer anti-collision system based on millimeter wave radar, which comprises a stacker and a reclaimer main body, material rakes are mounted on the front side and the rear side of the reclaimer main body, and a large arm is rotatably connected to the top of the stacker. The driving motor drives the driving wheel to rotate, the stacker and the large arm are moved back and forth through the driving wheel, the position of the large arm is adjusted, after the large arm is adjusted to a proper position, the brake is pressed to lock the driving wheel, the device is prevented from moving again, and then materials are conveyed to the surface of the large arm through the stacker. Materials are conveyed to the high position through the large arm, in the working process of the device, the distance between the large arm and an obstacle and the moving speed of the large arm are detected through the millimeter wave radar body, and when the obstacle is detected, the buzzer, the LED warning lamp and the brake relay are started through the control unit to conduct early warning.