7results about How to "Solve precise positioning" patented technology

The invention discloses a multi-mode fusion positioning method and system for diving bell emergency communication, and relates to the field of signal localization, and the method comprises the steps: collecting underwater mixed sound signals, and carrying out the spectrum analysis of the underwater mixed sound signals, and obtaining environment background noise characteristic parameters; inputting the underwater mixed sound signal into a preset bistable stochastic resonance system model, and adjusting a barrier height parameter of the bistable stochastic resonance system model according to the environmental background noise characteristic parameter to obtain an effective signal waveform after signal-to-noise ratio enhancement; performing signal separation on the effective signal waveform to obtain a continuous sound wave carrier signal and a positioning pulse signal; doppler frequency shift analysis is carried out on the continuous sound wave carrier signal to obtain a radial speed, and time arrival difference calculation is carried out on the positioning pulse signal to obtain a slant distance; and carrying out data fusion on the radial speed and the slope distance to obtain fused data, and obtaining a motion track and a current three-dimensional coordinate of the diving bell according to the fused data.

The application discloses a kind of laser cutting automatic control method and system based on servo motor, record when cutting position X axis absolute value encoder reading, and set the position limit of laser head in X axis direction, control X axis side servo motor completes cutting positioning;Control Y axis servo motor so that laser head moves to the cutting starting point of transmission material edge portion, open laser and cutting gas, laser head moves at specified cutting speed along Y axis uniform speed and cuts transmission material, when laser head moves to cutting end point, cutting is completed and laser and cutting gas are closed;After cutting is completed, laser head returns to cutting starting point at Y axis with the change speed of first fast then slow, when zero position limit switch appears rising edge signal, carry out laser head in the automatic zero point correction of Y axis direction.The application can solve the accurate positioning problem of each direction axis in laser cutting process.

The invention discloses a storage tank air tightness detection device, which comprises a base, an observation bin, a mobile detection mechanism and a pressure adjusting mechanism, the observation bin is arranged on the base, the pressure adjusting mechanism is arranged on the base, and the mobile detection mechanism comprises a bearing block, a first driving assembly and two groups of symmetrically arranged smoke detection assemblies. The first driving assembly is arranged in the base, the bearing block is horizontally and movably arranged in the base through the first driving assembly, the two sets of symmetrically-arranged smoke detection assemblies are arranged on the bearing block, and each smoke detection assembly comprises a connecting pipe, a supporting pipe, two sets of smoke outlet pipes and two sets of observation assemblies. According to the storage tank air tightness detection device provided by the embodiment of the invention, by integrating mobile scanning, smoke tracing and visual detection technologies, automatic and accurate positioning of a leakage point of the storage tank is realized, the detection sensitivity and efficiency are improved, nondestructive detection is completed in a closed and clean environment, and the problems of difficult positioning, low efficiency and pollution of a traditional method are solved.

The utility model discloses a kind of oil seal cover side hole precision positioning stamping device, including workbench, positioning mechanism being set on workbench and the stamping mechanism being located just above positioning mechanism, the positioning mechanism includes main positioning seat, a pair of V-shaped groove positioning block for clamping from both sides and accurately positioning the radial position of oil seal cover and axial positioning baffle for limiting the axial displacement of oil seal cover, the main positioning seat is fixedly installed on the upper surface of workbench, the V-shaped groove positioning block is symmetrically set in the both sides of main positioning seat and fixed on workbench, the axial positioning baffle is set in the side rear of main positioning seat and fixed on workbench.This oil seal cover side hole precision positioning stamping device solves the accurate positioning problem of cylindrical workpiece side hole machining through multiple positioning systems, combined with floating guide stamping mechanism and automatic auxiliary function, high-precision, high-efficiency, high-reliability and low-maintenance cost side hole stamping machining are realized.

This invention discloses a construction process for precise elevation positioning of cast-in-place concrete piles. In this process, two over-pouring detection instruments are fixed to a steel pipeline. The upper hook and operating platform of the steel pipeline are secured by springs and elastic rubber ropes. The lower hook of the steel pipeline is fixed to a wire loop, and a fusible gasket is used to fix the wire loop to the longitudinal reinforcement of the steel cage. When energized, the fusible gasket melts upon heating, automatically separating the wire loop from the longitudinal reinforcement. The spring between the upper hook and the operating platform returns to its natural state after losing the influence of the lower steel cage's weight. This invention provides a construction process for precise elevation positioning of cast-in-place concrete piles, enabling control over over-pouring height, saving materials, and avoiding the need for pile head demolition when exceeding the design elevation.

Embodiments of the present application disclose an image generation method and system applied to circuit board production. The method responds to a failure circuit board traceability task request, positions a failure area based on a preset failure positioning benchmark, collects a failure point morphology detail image and determines its layout position association information, and obtains a failure feature through feature mining. According to the failure feature, an abnormal association analysis is performed on a production link chain to obtain an abnormal tendency analysis result containing an association degree value of each production link and the failure feature. A potential abnormal link is locked and abnormal variable data is extracted, and an image generation rule is determined in combination with the failure feature. Finally, based on the potential abnormal link scene label and the image generation rule, an intermediate state image of the failure circuit board in the potential abnormal link is reversely generated. The method can realize accurate traceability from a failure result to a production abnormality, and present an abnormal state in a production process in a visual image, thereby realizing efficient and intuitive circuit board failure traceability.

The embodiment of the invention discloses an image generation method and system applied to circuit board production, and the method comprises the steps: positioning a failure region based on a preset failure positioning reference in response to a failure circuit board traceability task request, collecting a form detail image of a failure point, determining the layout position correlation information of the image, and obtaining a failure feature through feature mining; performing abnormal correlation analysis on the production link chain according to the failure characteristics to obtain an abnormal tendency analysis result containing correlation degree values of the production links and the failure characteristics; potential abnormal links are locked, abnormal variable data are extracted, and an image generation rule is determined in combination with failure features; and finally, the intermediate state image of the failed circuit board in the potential abnormal link is reversely generated based on the potential abnormal link scene label and the image generation rule, the method can realize accurate traceability from the failure result to the production abnormity, the abnormal state in the production process is presented by the visual image, and the production efficiency is improved. Therefore, efficient and visual circuit board failure traceability is realized.