5results about How to "Avoid recalibration" patented technology

The utility model relates to the technical field of numerical control lathe fixtures, in particular to a numerical control lathe accurate positioning fixture for musical instrument production, which comprises a base and connecting rods, a support plate is rotatably connected onto the base, a placing plate is connected onto the support plate, a plurality of mounting plates are mounted on the support plate, and two ends of each connecting rod are rotatably connected with the mounting plates. The four connecting rods are connected with extrusion blocks, bevel gear sets are arranged at the ends of the four connecting rods, the extrusion blocks are slidably connected into the containing plate, a motor is mounted on the mounting plate, one ends of the connecting rods at the front end and the rear end are connected with an output shaft of the motor, and the other ends of the connecting rods are in transmission connection with the connecting rods at the left end and the right end through the bevel gear sets. The connecting rods are driven by the motor to rotate and matched with the bevel gear set to enable the four connecting rods to synchronously drive the extrusion block to move towards the center, pressure values in all directions are detected in real time through the pressure sensor, driving is automatically cut off based on threshold judgment by the controller, closed-loop control over clamping force is achieved, self-centering clamping is completed, and the clamping efficiency is improved.

The invention provides a calibration method and system for a temperature and humidity sensor, and the method comprises the steps: obtaining a real-time temperature value of a calibration cavity and a real-time humidity value of the calibration cavity within a preset maintenance time, and obtaining a temperature driving signal and a humidity driving signal based on the real-time temperature value and the real-time humidity value, carrying out temperature and humidity adjustment on the calibration cavity based on the temperature and humidity adjustment result and obtaining real-time temperature and humidity values again until a preset temperature stable condition and a preset humidity stable condition are met, and collecting a first temperature and a first humidity of the chip; calculating four correction coefficients based on the real-time humidity value, the first temperature of the chip and the first humidity; and calculating a corrected humidity value based on the four correction coefficients, the chip first temperature and the chip first humidity, calculating a humidity difference value based on the real-time humidity value, and if the humidity difference value is smaller than or equal to a preset humidity difference threshold value, completing calibration. According to the calibration method of the temperature and humidity sensors, low calibration efficiency and poor calibration batch consistency are avoided, and automatic parallel calibration of the plurality of temperature and humidity sensors is realized.

The invention discloses a sensor data processing method and device, electronic equipment and a readable storage medium, and belongs to the technical field of data processing. The method comprises the steps of obtaining fisheye image data collected by a fisheye camera of a target vehicle, wherein the fisheye image data comprises image data of calibration cloth at a preset position of the target vehicle; acquiring first internal reference data of the fisheye camera, and determining target image coordinate data of the calibration cloth corner point based on the fisheye image data and the first internal reference data; acquiring space coordinate data of the calibration cloth corner point, and determining a first mapping relation according to the target image coordinate data and the space coordinate data; and determining external parameter data of the fisheye camera according to the first internal parameter data and the first mapping relation. According to the embodiment of the invention, the calibration process of the single equipment in the vehicle is simplified.

The present application relates to the field of agricultural machinery safety perception and intelligent early warning technology, and particularly relates to a silage harvester living body detection and early warning method fusing thermal infrared and visible light, wherein a thermal infrared camera and a visible light camera are installed on the roof of the harvester, calibration parameters and spatial mapping relationships are obtained in advance, dual-mode images of the front work area are collected in real time, pre-stored parameters are called to perform synchronous matching and spatial registration, the dual-mode image pair is input into an RGBT-YOLO network based on the improvement of YOLOv11, temperature features are extracted through the thermal infrared branch, texture features are extracted through the visible light branch, and the class, position and confidence of the living body target are output after cross-modal fusion and lightweight detection, when a person or an animal enters a preset dangerous area in front of the header and continuously meets the alarm conditions, an audible and visual alarm device is driven to send an early warning signal, and the problems of insufficient consideration of dual-mode image registration, feature-level fusion detection and early warning control closed loop in the working scene of the dangerous area in front of the silage harvester at the present stage are solved.

The utility model discloses a filling machine for lubricating oil production relates to lubricating oil processing technical field. The utility model discloses a base and the casing of fixed connection at the top of base, the top of base is provided with a plurality of oil pipes, the base bottom is fixedly connected with a plurality of support columns, the casing inner wall is fixedly connected with the support plate no.