1910 results about "Infrared thermal imaging" patented technology

A system and method for providing thermal gender recognition of people in any place of entertainment, leisure and / or recreation. The system utilizes infrared thermal imaging cameras and enables a prospective attendee determine in advance from a remote location where the prospective attendee would like to be. The system includes at least one computer system capable of communicating with a server over a network for retrieval, processing, and transmission of captured image data of each person in view of the infrared thermal imaging cameras. A website is configured to receive the image data of each person from the at least one computer system and implement the image data in a suitable format for viewing of the icons in various locations of the place by the prospective attendee from the remote location.

The invention discloses an online monitoring system for infrared thermal imaging of a converting station. The system comprises an online infrared thermal imaging instrument, a view screen monitoring and processing module, an infrared image information processing module and a system management and maintenance module, wherein the view screen monitoring and processing module comprises a communication and control subsystem and an infrared imaging and temperature measuring subsystem; the communication and control subsystem is used for controlling a field online infrared thermal imaging instrument, a visible light CCD (Charge Coupled Device) and a tripod head servo and setting and controlling a data link; the infrared imaging and temperature measuring subsystem comprises a temperature measuring, recording, alarming and short message platform system for realizing temperature measurement, alarming and transmission of alarm information through a short message platform; the infrared image information processing module comprises an infrared image analysis system, a failure auxiliary diagnosis system and an infrared and visible light video processing system; and the system management and maintenance module comprises an equipment thermal failure typical infrared image library management system, a management inquiry, statistic and report system and an interface system for an extant service system. By means of the online monitoring system in the invention, the defects of portable infrared imaging are overcome, artificial detection is combined with system detection, real-time monitoring of electric equipment is realized, and infrared thermal image monitoring of a monitored range or specified target equipment as well as data acquisition and recording, storage and analysis of a temperature field are ensured. The system has the characteristics of automatic routing inspection, automatic pre-warning, accuracy, high speed and remote monitoring.

The invention discloses a thermal image device and a shooting method for the thermal image, and relates to the thermal image device and the field of application of infrared thermal imaging detection. According to the thermal device in the prior art, the shooting part, angle and distance of an object to be shot are selected according to subjective experience of a user during shooting; and the thermal device in the prior art is low in shooting speed, key shooting parts are missed, and the positions, sizes and angles of thermal images of similar objects which are to be shot and shot each time in infrared thermal images are almost different, so the effect of state estimation of the thermal image is influenced. According to the thermal image device and the shooting method, a specified position and size are displayed in the infrared thermal image, and the reference image of the predetermined morphological characteristics of the object to be shot is showed, expected thermal image quality of the object to be shot and the visual reference required by the shooting are provided for the user, the user is assisted in correctly grasping the imaging state and the shooting distance of the thermal image of the object to be shot, the technical requirement on the user is reduced, shooting speed is improved, and the estimation quality of the thermal image is improved.

The invention discloses a thermal imaging device and a standard thermal image photographing method and relates to the application field of thermal imaging devices and infrared thermal imaging detection. When the thermal imaging device in the prior art is used for taking a photograph, the photographed part, the photographing angle and the photographing distance of a photographed object are required to be selected depending on the subjective experiences of a user, the photographing speed is slow, omission is apt to be caused, the positions, sizes and angles of the thermal images of similar photographed objects in infrared thermal images, the thermal images of the photographed objects are photographed at each time are almost not the same and the subsequent batch processing of the recorded infrared thermal images is difficult. The thermal imaging device and the standard thermal image photographing method provided by the invention have the advantages that the specified position and the specified size and reflected the expect morphological characteristics of the photographed object are presented in the infrared thermal images, the user can obtain visual references which can satisfy the expected thermal image quality and the photographing requirement of the photographed objects, the user is helped to correctly master the imaging morphology and the photographing distance of the thermal images of the photographed objects and the unified and standard thermal images of the photographed objects can be easily recorded and obtained.

The present invention discloses a forest fire alarm system based on infrared thermal imaging technology comprising: an infrared camera mounted at an elevated location of the land area to be monitored and used to capture infrared thermal images of a monitored area, said camera comprising: a frontal temperature measurement and alarm module for calculating the alarm temperature value by using a temperature monitoring mathematical model, and for transmitting an excessive temperature alarm signal when there are abnormalities in said area; a video conversion device coupled to the infrared camera for converting an infrared thermal image analog signal outputted by the camera into an infrared digital signal, and for receiving from the camera said alarm signal and converting the alarm signal into a digital signal; a monitoring computer for generating and transmitting an infrared camera control signal, and for receiving, analyzing and processing the infrared digital signal to ascertain the location in the monitored area that triggered the infrared camera alarm, and for automatically generating a solution and reporting to the control center.

The invention is a video frequency real-time displaying control device for infrared heat imaging image and visible image. The device includes a computer, an infrared heat imaging device, visible camera whose field angle can match with it; there has a video collecting card on the interface slot of the computer, the infrared image device and the visible camera are fixed on the same platform; there stores control, temperature measuring, image processing and displaying procedure model, it can remote control the platform, the infrared heat device and the visible light camera, they can be rotated synchronously, the field angles of the posterior two match, and makes the heat imaging image and the visible light image can coincided with the coordinate of the computer monitor. The invention can carry on real-time memorization, displaying, imaging, and playbacks the heat imaging image and the visible light image, it also can display the temperature valve and position coordinates of the object, it also has merits of infrared imaging and visible light image.

The invention discloses a pulsed eddy current infrared thermal imaging detection system and method for steel rail cracks. The system comprises an excitation device, an induction heating device, an infrared thermal imager and a PC, wherein the induction heating device is used for generating a pulse current signal; the pulse current signal is exerted to a tested part through the excitation device; eddy current is induced from the surface of the tested part and a thermal effect is generated, so that the surface temperature distribution changes; the infrared thermal imager is used for recording the surface temperature change process of the tested part and transmitting to the PC to process and analyze. The pulsed eddy current infrared thermal imaging detection system is characterized by also comprising a synchronous trigger control circuit, which is used for synchronously controlling the excitation and recording time of the induction heating device and the infrared thermal imager, so that the heating and cooling processes after complete induction of the tested part are accurately recorded; and the condition that the PC obtains accurate data to analyze and treat is ensured. The pulsed eddy current infrared thermal imaging detection system is high in detection efficiency and high in image resolution ratio; excitation of an excitation source and the infrared thermal imager can be synchronously carried out; and the detection result is not affected by human factors.

The invention relates to a material in-situ detection device and method under multi-load multi-physical-field coupling service conditions, and belongs to the field of precise scientific instruments. The material in-situ detection device is composed of a precise six-degrees-of-freedom composite load loading module, a precise torsion module, a precise indentation module, a clamp module and a control module which work together to complete a composite-load multi-physical-field coupling experiment, a digital speckle strain measurement and infrared thermal imaging module and a microscope observation module are integrated, and in-situ observation and quantitative characterization are carried out on material deformation behaviors and damage mechanism phenomena in a composite-load multi-physical-field loading process. The device and the method have the advantages that the composite-load loading can be realized, and a novel loading method such as 'cantilever type pure bending, cantilever type tensile / compression-torsion, and cantilever type bending-torsion' is carried out. Silicon nitride ceramic heating sheets, Peltier tiles and current loading are used for achieving simulation of cold / hot-electricity and other multiple physical fields, and an improvement innovative experimental testing method is provided for material micromechanical property tests close to the serving conditions.

A dual-band reflective infrared thermal imaging system is described. The dual-band reflective infrared thermal imaging system includes a reflective infrared thermal imager and a refractive visible light video camera. The refractive visible light video camera is configured at the central axis of the reflective infrared thermal imager so that the refractive visible light video camera and the reflective infrared thermal imager can synchronously and coaxially capture the images. The reflective infrared thermal imager further includes a reflective optical module and an infrared imaging sensor. The infrared images are focused on the infrared imaging sensor by way of the reflective optical module.

The invention provides a five-dimensional early-warning system based on artificial intelligence multi-factor panoramic monitoring detection. The system comprises at least one front-end artificial intelligence multi-factor panoramic monitoring detection device and a center management device; each front-end device comprises a central control processing unit, a camera team connected with the centralcontrol processing unit, a multi-factor sensor, a communication module, a mobile terminal and an interface unit; the multi-factor sensor comprises a brightness light intensity sensor, a temperature and humidity sensor, a rainfall sensor, a wind speed and direction sensor, and a comprehensive gas sensor; the camera team comprises multiple zoom cameras and an IPC infrared thermal imaging camera; thecentral control processing unit mainly accomplishes the operations of performing mosaic fusion and data collection, logic operation and logic control output on the received image information according to a mosaic algorithm; the center management device performs field five-dimensional pattern real-time display through a big data cloud processing platform. Five groups of video streams are output tothe external, thereby supporting a 180-DEG or 360-DEG panoramic seamless mosaic video stream.

The invention belongs to the computer image processing technical field and relates to a gait feature extraction method and a gait recognition method adopting the feature extraction method. The invention uses an infrared thermal imager to collect a gait image sequence and split a human body target, makes a specificationized superposition processing to the gait image sequence and the human body target to obtain a gait feature image, then takes advantage of wavelet decomposition and invariant moment combined with a skeleton theory to extract gait feature parameters which are taken as gait feature recognition parameters to be input into a support vector machine for classification recognition. The gait feature extraction method and the gait recognition method provided by the invention can effectively detect the human body target, eliminate the influence caused by change factors such as backgrounds, lighting and so on, and improve the correct recognition rate of the gait.

This invention provides an on-line test for chip solder joints and a package device including a test platform, an image collecting device, an image processing device and a front interface, in which, said platform for processing chips and testing samples is connected with the chip package device via the front interface and is capable of heating the sample, said image collecting device is set above the platform and set with an infrared thermal imaging system to pick up thermal images of the sample, said image process system includes a central processor for processing the thermal images of the sample picked up by the collecting image to judge solder joints of the sample.

The invention relates to a robot for performing fire source location and fire extinguishment based on binocular vision. The robot includes a front end camera module, an image acquisition module, a data processing and control module, a fire extinguishing device module, a wireless transmission module and a robot carrier; the front end camera module is composed of an infrared thermal imaging instrument and a low-illumination visible light camera; the image acquisition module analyzes infrared thermal imaged images, and transmits infrared and visible light images corresponding to a certain region to the data processing and control module if finding that the region accords with fire source characteristics; the binocular ranging unit of the data processing and control module performs 3D coordinate positioning on the region, and transmits positioned 3D coordinates to a control unit; and the fire extinguishing device module comprises a fire extinguishing gun for spraying fire extinguishing materials. With the method and robot for performing fire source location and fire extinguishment based on binocular vision provided by the invention adopted, the robot can replace people to perform dangerous chemical warehouse supervision, intelligent analysis on fire source locations and accurate fire extinguishment on fire sources.

The invention relates to an infrared two-point non-uniform calibrating method based on a frame black body field diaphragm, belonging to the field of infrared thermal imaging. The method comprises the following steps of: arranging an automatically-telescopic frame black body field diaphragm on a diaphragm of an infrared thermal imager and performing two-point calibration under a frame to obtain a gain calibration factor and an offset calibration factor of a detection unit under the coverage of a frame black body; acquiring f frames of initially-calibrated images respectively on two scenes to obtain f-1 groups of inter-frame displacement parameters on every scene; and acquiring calibration parameters of f-1 groups of images with inter-frame displacement on an internal detection unit by adopting an algebraic method, and averaging the frames to obtain finial calibration matrixes G and 0 for calibrating the entire field of a subsequent infrared video. The method has the advantages of rapidness, self-adaption and system miniaturization, and can be applied to the fields of designing, production and manufacturing of refrigerating and non-refrigerating infrared focal plane detector thermalimaging systems, satellite infrared thermal imaging systems, infrared alarm systems, scientific researches and the like.

The scheme of the invention discloses a vehicle assistance driving system based on the infrared thermal imaging and millimeter wave radar technology. The main functions include pedestrian and vehicledetection, image and sound fusion and collision early warning in driving of the vehicle. The early warning system uses the following technical characteristics: the infrared camera and the millimeter wave radar specialized for vehicle-mounted assistance driving, the data acquired by the radar, such as the distance, the direction and the speed and the images acquired by the infrared camera are fusedfor screening and determining the pedestrians or the vehicles, the pedestrian or vehicle characteristics are extracted through the algorithm, finally the result is displayed on the visual interface and multidimensional early warning information including images, numbers and sound is provided.

The invention provides a method for measuring thickness or defect depth by a pulse infrared thermal wave technology, comprising the following steps of (1) heating an object to be measured by pulse heating equipment; obtaining a thermographic sequence on the surface of the object to be measured by an infrared thermal imaging device; memorizing the thermographic sequence in a general memory; (2) multiplying a temperature-time curve of each point in the thermaographic sequence with corresponding time, thus obtaining a new curve f; (3) working out first-order differential on the f; and obtaining a peak time tapst; (4) working out L by a formula, wherein Alpha is thermal diffusion coefficient and L is the thickness or the defect depth of the object to be measured. By adopting the technical scheme, the thickness or detect depth of a part to be measured can be measured, a reference curve is not needed, and only one-order differential treatment is needed for the measurement, so that the processing method is simpler.

The invention provides a welding quality monitoring system and method. The welding quality monitoring system comprises a welding gun, a thermal infrared imager, an image capture card and an image processing computer. The welding gun is used for welding welding spots. The thermal infrared imager is used for recording molten bath infrared thermal imaging data of the welding spots. The image capture card is used for collecting the molten bath infrared thermal imaging data and sending the molten bath infrared thermal imaging data to the image processing computer. The image processing computer is used for analyzing the molten bath infrared thermal imaging data to obtain welding parameters, comparing the welding parameters with preset welding standards and obtaining a welding spot quality estimation result. In this way, by the adoption of the welding quality monitoring system and method, online monitoring of automatic welding quality can be achieved, the monitoring efficiency and monitoring quality are improved, and the missing inspection rate is reduced.

The invention discloses a tunnel structure leaked water precise identifying device and method based on infrared thermal imaging, and mainly solves the problem of imprecise area calculation caused by inaccurate leaked water profile detected by traditional single visible light images in traditional tunnel structure leaked water detection. A data acquiring device comprises an infrared thermal imager,an industrial camera, a light feeding device, a synchronous control card, a laser distance measurer, a distance measuring wheel device, an industrial personal computer and a power supply system. Thetunnel structure leaked water identifying method uses the infrared thermal imager and the industrial camera for respectively acquiring infrared thermal images and visible light images of tunnel structures, firstly extracts out leaked water center areas according to the principle of lower temperatures of leaked water areas in the infrared thermal images, widens the range to extract the leaked waterareas from the same areas of the visible light areas, uses temperature information in the infrared thermal images for correcting the area profiles extracted from the visible light images, and finallycalculates the areas to solve the problem of inaccurate identification of leaked water areas in the prior art.

The invention relates to an intelligent infrared thermal imaging device and inspection method for online inspection of power grid equipment, including an infrared temperature measurement back clip for collecting infrared data and an intelligent terminal, and the infrared temperature measurement back clip and the intelligent terminal communicate with each other; Relying on the huge equipment basic ledger system of the power production management system, electronic identification (RFID electronic tags, barcode labels) and location information (GPS, etc.) are used as means to identify the identity information of power grid inspection equipment, and infrared thermal imaging is used as The means of information collection, the inspection results are transmitted to the power production management system. The invention has a reasonable structure, is convenient to use, and improves the working efficiency of the power grid patrol inspection. Through information technology means (automatic identification of tags, automatic upload of inspection results, etc.), the workload of manual records and entry systems of inspection personnel is reduced, the consumption of working hours and the number of personnel are greatly reduced, and work efficiency is improved.

The invention discloses an infrared thermal imaging temperature measuring method by correcting surface emissivity through image segmentation. The infrared thermal imaging temperature measuring method includes: aiming at infrared images of a target object surface, wherein the infrared images are shot by a thermal infrared imager, using an image segmentation algorithm, distinguishing areas with different emissivities in the infrared images; based on the emissivities of different areas measured by an emissivity measuring instrument, establishing emissivity distribution array corresponding to image pixels of the infrared images one to one, using the emissivity distribution array to correct gray level array of the infrared images of the target object surface, thus obtaining infrared images which fit emissivity distribution characteristics of the target object surface, thus calculating and obtaining temperature field distribution of the target object surface. Due to the fact the existing infrared thermal imaging temperature measuring method is not capable of accurately setting the emissivity distribution of the target object surface, errors of temperature measuring results are big. The infrared thermal imaging temperature measuring method by the correcting surface emissivity through the image segmentation is capable of effectively reducing the errors, the temperature measuring results are enabled to fit actual temperature distribution conditions of the target object surface. The infrared thermal imaging temperature measuring method by the correcting surface emissivity through the image segmentation is simple in requirement for equipment and easy to achieve.

The invention relates to a porcelain suspension type insulator fault diagnosis method. The method can realize the diagnosis of a faulty insulator by analyzing the temperature feature information of a porcelain suspension type insulator string. When the method is used for implementing diagnosis, the infrared thermal image spectrum of a certain number of the same types of insulator strings having no obvious abnormality can be collected on a to-be-detected site, so as to form the reference temperature feature information of the type insulator string of the detection site. Then the temperature feature information in the infrared thermal imaging spectrum of the to-be-diagnosed insulator string is extracted to compare with the reference temperature feature information, and the faulty insulator can be judged when no obvious difference exists. According to the porcelain suspension type insulator fault diagnosis method, the influence of the environment interference factor on the temperature feature of the insulator string can be eliminated, and the insulator fault diagnosis accuracy of the infrared thermal imaging method can be effectively improved. The porcelain suspension type insulator fault diagnosis method considers the difference of temperature feature difference of insulators at different positions, can realize diagnosis by comparing the temperature features of the same position of the similar equipment in the identical environment, and is applicable to the insulator fault diagnosis under various complicated conditions. The porcelain suspension type insulator fault diagnosis method can be conveniently applied on site.

The invention discloses a material defect infrared thermal imaging detection and targeted elimination method in laser metal forming. In laser metal forming, after layers with fixed interlayers are produced, a workbench is controlled by a computer to move in the horizontal direction at a constant speed, thus an infrared thermal imaging detection lens can move in the horizontal direction above the imaging plane and carries out non-contact scanning and photo-taking by utilizing the residual heat of metal parts, and then the infrared thermal imaging detection images are analyzed online to calculate the coordinate azimuth of the metal forming plane. The computer control laser beams to target-melt the detected defects so as to eliminate the defects; after laser re-melting, an infrared thermal imaging detector is used to re-examine the metal forming surface to confirm the defect elimination effect. The provided method solves the problems that the defects on micro materials cannot be detected online and eliminated, effectively improves the using performance and service safety of laser formed metal parts, and reduces the risk of fatigue breakage.

The invention provides an automatic tracking and positioning fire water monitor and an automatic tracking and positioning jet flow fire-extinguishing method. The automatic tracking and positioning fire water monitor comprises a base, a support, a shell, a fire water monitor body, an infrared thermal imaging sensor, a processor, a water pump electric control valve, a horizontal stepping motor and a longitudinal stepping motor. The processor draws the coordinates of a thermal image in real time and judges the coordinates of the kindling point according to a preset temperature threshold value, and the thermal image is sent by the infrared thermal imaging sensor in real time. The fire water monitor body is positioned to the coordinates of the kindling point rapidly and tracks the coordinates of the kindling point in real time until the processor controls the water pump electric control valve to be opened and the fire water monitor body sprays water. The automatic tracking and positioning fire water monitor has the advantages of being scientific in design, rapid and accurate in positioning and capable of realizing movable fire tracking. The use method includes the steps of (1) clearing, (2) scanning, (3) judgment, (4) fire extinguishing, (5) water stop detection, (6) fire-extinguishing finishing and the like, and has the advantages of being simple, efficiency, capable of realizing movable fire tracking, complete in scanning coverage and capable of preventing detection omission.

The invention provides a large-area farmland crop water status monitoring method based on unmanned aerial vehicle infrared thermal image acquisition. The method comprises the following steps: 1)arranging auxiliary devices in the field, that is, field air temperature sensors and a ground full-evaporation reference surface; 2) carrying out large-area infrared image acquisition on farmland corps through an infrared thermal imaging system fixed to an unmanned aerial vehicle through a pan-tilt, and synchronously triggering a GPS module to obtain positioning information of the corresponding images; and 3) receiving by a ground data processing system the infrared images and the positioning information, carrying out image registering, splicing and segmentation on the images, extracting spatial distribution of canopy temperature and ground full-evaporation reference surface temperature, calculating the temperature of leaves when the stomas of the crops are fully closed, and finally, calculating water deficit index of the crops and carrying out highlighted display and early warning on the areas, where the water deficit index of the crops is higher than a critical value. Besides, the invention also provides a system suitable for the method. The method and system are suitable for large-area farmland crop water status monitoring, facilitate to realize agriculture precision irrigation and improve agricultural modernization level.

The invention discloses an unmanned aerial vehicle platform power line patrol system and work mode. The system comprises an airplane body, a relay machine and a ground command vehicle, wherein the airplane body is provided with a high-definition camera, an infrared thermal imager, an airplane data radio and an airplane image transmission radio, the relay machine is provided with a data radio replay and an image transmission radio relay, the data radio replay and the image transmission radio relay are in wireless communication with the airplane body, the ground command vehicle is provided with a ground data radio and a ground image transmission radio, the ground data radio and the ground image transmission radio are in wireless communication with the relay machine, the relay machine is an unmanned helicopter capable of patrolling flying, and the number of the relay machine is one or more. The unmanned aerial vehicle platform power line patrol system mainly relates to maintenance devices of a power system.

The invention provides a coal-gangue separation system and a separation method. The coal-gangue separation system is mainly formed by a flow-dividing device, a dual-vision identification device, a control device and mechanical arm gripping devices. The flow-dividing device is provided with multiple stages of adjustable flow-dividing baffle plates; through reasonably flow-dividing a coal-gangue flow, the approximate positions of coal and gangues can be determined, and the positioning and control cost is reduced; the dual-vision identification device adopts infrared thermal imaging identification and gray degree identification, and data parameters obtained through sampling are transmitted to the control module, so that the difficulty in identification and positioning is reduced, and the identification rate is improved; through two different identification ways, the evitable phenomena such as missing and wrong choosing are reduced; and a PLC (Programmable Logic Controller) is adopted to control three-degree-of-freedom mechanical arms to follow-up grip, and two-claw manipulators are arranged in fixed runners, so that the identification efficiency and the gripping efficiency of the coal and the gangues are higher, the control method is simpler, and an inertial impact force of the coal-gangue flow caused by excessive speed is reduced during a follow-up process.

The invention discloses a system for predicting the fatigue limit of a magnesium alloy member based on infrared thermal imaging, and a method thereof. The system comprises: fatigue tester jigs (1); a fatigue test piece (2) comprising a magnesium alloy base material and a welded joint test piece; a fatigue test control system (3); a fatigue test system (4) used for the fatigue test of the magnesium alloy base material and the welded joint test piece to obtain a magnesium alloy fatigue limit under a cycle frequency of 10<7 >; an infrared temperature measurement system (8) for obtaining the surface temperature change curve of the fatigue test piece (2) in the fatigue test process and recording the temperature change data of the fatigue test piece (2) in the fatigue process; and a comprehensive analysis system (5) applying origin software to compare the obtained magnesium alloy fatigue limit with a fatigue limit obtained through routine fatigue tests in order to judge the measurement accuracy. The system and the method can be used for estimating the dangerous point and the fatigue limit of a welding structure in service.

A method for high temperature process control in which the surface emission intensity of a surface is measured at two near-infrared wavelengths over an array of points covering a fill field of view. The emissivity variable is removed from the temperature calculation and the surface emission intensity measurements are digitally processed, resulting in generation of a color temperature map. The color temperature map is processed in a thermal imaging control algorithm process, producing control output signals, which are then input to a temperature control means for controlling the surface temperature. The apparatus used in carrying out this method is surface temperature monitoring system which includes a multiple-wavelength, near-infrared thermal imaging system.