102 results about "Middle infrared" patented technology

The invention discloses a passive radiation-cold storage composite box body and a preparation method. The box body sequentially comprises a composite radiation film, a heat insulation layer and a cold storage layer from outside to inside. The outer-layer radiation film is composed of an elastic organic matrix and high-reflection inorganic particles such as barium sulfate, has high solar reflectivity and mid-infrared high emissivity, and can effectively restrain solar absorption and achieve radiation heat dissipation in the daytime. The heat insulation layer is made of XPS, EPS, aerogel felt and other low-heat-conduction materials so as to reduce external heat transfer. Phase change microcapsules are dispersed in the cold storage layer, and flake graphite and other high-thermal-conductivity fillers can be added to improve the cold transfer efficiency and temperature uniformity. And the phase-change material realizes automatic cold storage and cold release through a latent heat mechanism, so that the temperature in the box body is kept stable. Through the synergistic effect of radiation refrigeration, heat insulation and phase change cold storage, long-time and recyclable passive cold chain temperature control is achieved, and the device has the advantages of being simple and convenient in structure, high in cost performance, flexible in application, uniform in internal temperature distribution and the like.

This invention discloses an infrared temperature measurement correction method, apparatus, and system for three-dimensional curved surfaces. The infrared temperature measurement correction method includes: dividing the blade surface into at least two emissivity measurement regions according to the surface type of the blade being measured; acquiring the emissivity distribution of each emissivity measurement region on the blade surface at different temperatures; obtaining bidirectional reflection distribution functions for different surface types based on the projected energy of the infrared light source at different incident angles and the reflected energy received by the infrared camera at different detection angles; and obtaining the corrected measurement temperature based on the acquired emissivity distribution of each emissivity measurement region on the blade surface at different temperatures and the bidirectional reflection distribution functions for different surface types. This invention has a wide range of applications and high correction accuracy, and can be used to correct infrared temperature measurements of curved surfaces such as aero-engine turbine blades in complex environments, enabling non-contact, multi-dimensional, and online measurement of curved surfaces.

This utility model relates to the technical field of heating equipment for livestock farming, and discloses an infrared radiation plate for pig nursery pigs, including a shell and a first heating element. The first heating element is located inside the shell and is attached to the inner front wall of the shell. Compared with heating tubes, the first heating element provided by this utility model can provide a uniform heating effect for the infrared emitting plate, and the radiant heating area is large. Therefore, it is not necessary to use multiple heating tubes to heat the living environment of the nursery pigs, which can avoid the problem of increased pig farming costs due to increased purchase costs of heating plates. Moreover, the infrared emitting plate provided by this utility model has a simple structure, and users can directly plug it in after delivery, eliminating complicated installation procedures. In the humid and regularly disinfected environment of the pig farm, the service life of the infrared emitting plate is longer than that of heating tubes, which can greatly reduce the equipment investment of pig farming enterprises.

This invention relates to the field of image sensing data processing and discloses a method for diagnosing the thermal environment of blue-green spaces in cold-region cities based on multispectral remote sensing. The method includes the following steps: acquiring multispectral remote sensing images, three-dimensional building elevations, and solar apparent shape parameters; calculating the illumination shading coefficient of blue-green space pixels to form a three-dimensional dynamic shadow mask; constructing a microscopic phase transition evolution operator using the sensitivity gradient of radiation intensity in different polarization directions and mid-infrared reflectivity; inputting the mask and operator into the thermal infrared radiation measurement equation to reconstruct the dynamic surface temperature; solving the surface energy balance equation based on the dynamic surface temperature, separating the latent heat storage of phase transition energy, and constructing a latent heat buffer index; and performing a comprehensive diagnosis of the thermal environment health based on this index. This invention effectively overcomes the temperature measurement errors caused by complex shading and phase state interweaving, accurately isolates the latent heat energy of phase transition, and achieves precise positioning and objective quantitative diagnosis of microclimate anomalies in cold-region cities.

The embodiment of the application discloses an inverter and a photovoltaic power generation system, wherein the inverter can be applied to a photovoltaic scene, a vehicle-mounted scene and the like. The inverter comprises a shell, a device group and an infrared temperature measurement component. The device group and the infrared temperature measurement component are arranged in the shell, wherein the infrared temperature measurement component is used for temperature monitoring of the device group. The infrared temperature measurement component is a non-contact temperature measurement component, has a wide measurement range, can simultaneously perform temperature detection on multiple devices, can greatly improve the comprehensiveness of temperature detection, and can reduce the situation that some devices are missed in monitoring, for example, a bus capacitor, a conductive copper bar and the like.

The invention relates to a low-light scene infrared and visible light image rapid fusion method based on OpenCL, and belongs to the technical field of computer vision. According to the method, a low-light enhancement task of a visible light image and a fusion task of infrared and visible light images are subjected to combined modeling. Based on a brightness component of a color space, low light enhancement and gradient transfer are jointly optimized, and simple and effective enhancement fusion of an infrared image and a visible light image in a low-illumination night scene is realized. The invention provides a complementary logarithmic gamma correction function, the ELGC realizes low light enhancement, the SLGC realizes high light suppression, and the ELGC and the SLGC interact with each other, so that the enhancement of general brightness in the daytime can be realized.

The utility model discloses an infrared light-emitting device based on a liquid infrared quantum dot light conversion element, an imager, a diagnosis and treatment instrument and a beauty instrument. The infrared light-emitting device comprises an excitation light source, the liquid infrared quantum dot light conversion element, a light transmitting element, a refrigerating system, a light condensing element and a light guide mechanism. The liquid infrared quantum dot light conversion element is arranged on the side, emitting light, of the excitation light source, and the liquid infrared quantum dot light conversion element, the light transmitting element, the light condensing element and the light guide mechanism are sequentially arranged in the direction away from the excitation light source. The refrigerating system is arranged on the outer side of the liquid infrared quantum dot light conversion element. In the scheme of the utility model, the liquid infrared quantum dot light conversion element adopted by the infrared light-emitting equipment has higher light-emitting efficiency, and the solvent of the liquid infrared quantum dot light conversion element can also play a role in heat dissipation so as to slow down light attenuation. By arranging the refrigerating system, efficient heat dissipation is conducted on the infrared quantum dot solution, light attenuation of the quantum dot light conversion element can be effectively avoided, and stable light output of the infrared light-emitting equipment is achieved.

Embodiments of the present application provide an infrared touch scanning method and apparatus, a storage medium, and an interactive tablet. The method is applied to an infrared touch frame, the infrared touch frame comprises a plurality of side frames, infrared receivers and infrared emitters are provided in each side frame, and the infrared receivers in each side frame are divided into a plurality of infrared receiving groups. The method comprises the following steps: sequentially selecting infrared receiving groups one by one on the basis of a preset order, and controlling each infrared receiver of each selected infrared receiving group to start scanning; on the basis of each selected infrared receiving group, controlling corresponding infrared emitters to sequentially emit infrared signals; and on the basis of the infrared signals obtained by scanning of the infrared receivers, determining a touch position. Therefore, the infrared touch detection precision is improved, and the problem of touch misjudgment is reduced.

The invention provides an ambient brightness detection method and an ambient brightness detection device, and the method can determine the initial brightness value of a target environment according to the pixel brightness value of each color channel in a target image and the brightness weight corresponding to each color channel, and can determine the initial brightness value of the target environment according to an infrared interference coefficient and the pixel brightness value of an infrared channel. According to the method, the infrared interference brightness value is determined according to the initial brightness value of the target image, the actual brightness value of the target environment is determined according to the initial brightness value and the infrared interference brightness value, and the situation that the actual brightness value of the target environment is inaccurate due to the influence of the infrared light is avoided by removing the influence of the infrared light in the target image on the pixel brightness value of each color channel. And the accuracy of detecting the actual brightness value of the target environment is improved.

The application provides a near real-time fire point dynamic monitoring method, device, equipment and medium, relates to the technical field of infrared remote sensing monitoring, and the method comprises the following steps: acquiring thermal infrared remote sensing data and land cover product of a forest and grass monitoring area, and performing data preprocessing; the thermal infrared remote sensing data is segmented to obtain tile data, and cloud extraction is performed based on the tile data; the extracted cloud is used for mask of the thermal infrared remote sensing data, and the medium infrared band and the far infrared band are segmented to obtain an isothermal graph spot layer; the isothermal graph spot layer is masked through water body and building area corresponding to the land cover product; the masked isothermal graph spot is comprehensively identified based on the statistical characteristics of the isothermal graph spot and the comparison characteristics of the isothermal graph spot and adjacent background graph spots, and a fire point detection result in the forest and grass monitoring area is obtained. The application alleviates the technical problems of pixel-by-pixel identification, large amount of calculation, low efficiency and limited precision in the prior art.

The invention discloses a medium-wave thermal imager calibration method for solid engine tail flame radiation measurement. The method comprises the following steps: measuring image data of a target black body at a corresponding temperature in real time through a medium-wave thermal infrared imager additionally provided with a specific optical filter; performing time dimension alignment and static and dynamic region division on the target area array black body infrared image data to obtain target area array black body static and dynamic infrared features; performing mean value estimation on the target area array black body features to obtain black body uniform feature information at the target temperature; performing characteristic-radiance calibration and curve fitting on the measurement data corresponding to the intermediate infrared thermal imager through the Planck's law of radiation to obtain a calibration equation corresponding to the intermediate infrared thermal imager; and an attenuation piece is additionally arranged again, intermediate infrared calibration equations under different configurations are obtained, and then the infrared radiation attenuation ratio is calculated. According to the invention, high-precision calibration of the intermediate infrared thermal imager can be realized, and the radiation brightness measurement precision and reliability of the intermediate infrared thermal imager can be improved.

The present application relates to the technical field of image recognition, in particular to a lightweight infrared small target real-time detection method, the detection method comprising the following steps: step one, constructing an infrared small target data set: obtaining the infrared small target and selecting and labeling it, step two, constructing an infrared small target detection network based on Mobilenetv3-Unet, step three, training the Mobilenetv3-Unet model using the infrared small target data set in step one to obtain the trained Mobilenetv3-Unet model, step four, using the trained Mobilenetv3-Unet model to detect the infrared small target of the input picture, the Mobilenetv3-Unet model in step two comprising a feature extraction backbone network and a feature aggregation network, wherein the feature extraction backbone network is an optimized Mobilenetv3 model, the present application not only improves the detection capability of the infrared small target in a complex scene, but also uses fewer computing resources, so that the small target detection algorithm can be easily deployed on resource-limited edge devices.

The present application relates to a kind of multi-scale multi-branch feature utilization's cross-modal pedestrian re-identification method, belong to cross-modal pedestrian re-identification field.It includes: obtaining original data set, and through random channel learning the relationship between each channel of visible light modality image in original data set and single-channel infrared light modality image;The processed image is input into cross-modal feature extraction module, wherein, first, the different attributes of different modalities are processed by double-flow network, then multi-scale feature is extracted by shared network;Multi-scale feature is input into multi-scale information mining module for feature fusion;Fusion feature is extracted by multi-branch joint module again, and the discriminant feature extracted by each branch cooperates to carry out pedestrian re-identification.The present application combines multi-level spatial feature information to extract features, and uses global feature and local feature to increase the correlation between infrared modality and visible light modality in visual representation, improves the search accuracy of cross-modal pedestrian re-identification.

The utility model discloses an induction module and cleaning equipment. The induction module comprises a support, a visible light camera, an infrared camera and an infrared light supplement lamp, the visible light camera, the infrared camera and the infrared light supplement lamp are arranged on the support at intervals, and the infrared light supplement lamp is used for emitting infrared light to the external environment of the induction module; the infrared camera is used for receiving infrared light reflected by the external environment of the induction module. In the induction module, the infrared light supplement lamp can emit the infrared light to the external environment of the induction module, and the infrared camera can receive the infrared light of the external environment of the induction module, so that the infrared light can be used for identifying stains and obstacles; and the condition of misrecognition caused by interference of visible light in ambient light is avoided or reduced to a certain extent.

The embodiment of the invention provides a soil bacterial community structure evaluation method and system based on an intermediate infrared spectrum transfer function and application, and relates to the technical field of soil microbial ecology. The method comprises the following steps: S1, collecting a soil sample; s2, acquiring a mid-infrared diffuse reflection spectrum of the soil sample to be detected; s3, acquiring an environment covariant corresponding to the soil sample, wherein the environment covariant comprises at least one of soil physicochemical properties, climate data and topographic parameters; s4, splicing the mid-infrared diffuse reflection spectrum obtained in the step S2 and the environment covariable obtained in the step S3 to form a fusion feature vector as an input feature set; and S5, inputting the input feature set into a pre-trained nonlinear machine learning regression model, and outputting the relative abundance and / or OTU richness of at least one bacteriophage in the soil sample. According to the method, a technical route of combining a mid-infrared (MIR) spectrum and a spectral transfer function (STF) is adopted and is used for predicting the soil bacterial community structure.

This invention discloses a protective mask with synergistic cooling functions of radiation and evaporation, and its preparation method. The mask consists of inner and outer functional support layers and a core filter layer. The inner and outer functional support layers are made of polylactic acid (PLA) spunbond nonwoven material and spunlace nonwoven material, respectively. The core filter layer is an electrospun Janus PLA micro / nanofiber membrane with unidirectional moisture-wicking function. The core filter layer is composed of a hydrophobic PLA fiber layer and a hydrophilic modified PLA@PEO fiber layer, forming an inner and outer hydrophobic gradient to achieve rapid unidirectional moisture transfer from the inside to the outside and moisture evaporation cooling. In addition, the protective mask utilizes the high infrared emissivity of PLA material and the strong solar reflection characteristics of the electrospun micro / nanofiber structure to achieve radiative cooling. This invention can achieve synergistic cooling effects of radiation and evaporation while ensuring high filtration efficiency and particulate matter protection, improving thermal and humidity comfort when wearing the protective mask for extended periods.

The application discloses a kind of lightweight infrared small target detection method, system and storage medium, method is by obtaining the infrared image to be detected;It is input to the optimized lightweight detection model and is handled, the detection head of this model adopts single-branch shared parameter structure and carries out boundary frame regression prediction;The position information of infrared small target in final output image is outputed.Wherein, model is by containing the initial structure of single-branch detection head, and adopts the knowledge distillation strategy combined with output logic distillation and channel feature distillation, and is trained and optimized on infrared small target data set.This application effectively solves the problem of real-time infrared small target detection in the edge end limited by computing power, significantly improves the recognition rate of infrared small target and system real-time response capability.

The invention belongs to the technical field of solid waste recycling and intelligent sorting equipment, and discloses a waste plastic high-speed sorting method based on multispectral fusion and element screening, which is suitable for online separation of general-purpose plastics such as PP (polypropylene), PE (polyethylene), PVC (polyvinyl chloride) and PET (polyethylene terephthalate). Aiming at the problems of difficulty in black plastic identification, insufficient PVC / halogen-containing risk discrimination and wrong sorting caused by industrial drift in traditional near-infrared sorting, a link of visible light positioning, near-infrared main identification, intermediate infrared / medium-wave infrared reinspection, X-ray fluorescence element discrimination, multi-modal fusion decision-gas injection separation is adopted, grading detection is triggered through confidence, and the sorting accuracy is improved. A risk priority rule and an online self-calibration compensation strategy are combined, and a two-stage sorting framework is matched. According to the method, high-risk PVC particles are preferentially removed, black plastic is accurately recognized, the separation purity is improved while high productivity is guaranteed, the industrial operation stability and expandability are enhanced, and the waste plastic recycling benefit is remarkably improved.

Techniques are provided for facilitating infrared imaging device coupling systems and methods. In one example, an infrared imaging device includes a printed circuit board (PCB) having a recess defined therein. The infrared imaging device further includes a conductive layer disposed within the recess and configured to provide a thermal path. The infrared imaging device further includes an infrared focal plane array (FPA) disposed at least partially within the recess and disposed on and thermally coupled to the conductive layer. The infrared FPA includes a detector array comprising a plurality of infrared detectors. Each infrared detector is configured to detect electromagnetic radiation. The infrared FPA further includes a readout circuit configured to perform a readout to obtain image data from each of the plurality of infrared detectors. The readout circuit is disposed on the conductive layer. Related methods and systems are also provided.

This invention discloses a UAV-based detection and early warning system and method for potential road collapse hazards, relating to the field of road infrastructure safety monitoring and intelligent early warning technology. It includes a UAV image acquisition module that acquires infrared image data of the road area and associates the infrared image data with acquisition time information and spatial location information to organize it into time-series infrared image data. In this invention, infrared image data with a binding relationship between acquisition time information and spatial location information is acquired by the UAV, and continuous time-series infrared image data is constructed based on this. This achieves unified organization of infrared information in the time and spatial dimensions during road inspection, providing a reliable data foundation for subsequent stability analysis. It effectively avoids the problem of missing time correlation in traditional single-frame analysis. By introducing a task variable modeling image correction mechanism, the infrared images can maintain stable and consistent radiation characteristics even under complex inspection conditions.

This invention relates to the field of glass curtain wall film technology, specifically to a glass curtain wall radiation cooling film and its preparation process. The cooling film has a layered structure, comprising, from the side closest to the glass substrate outwards: a self-healing adhesion layer for forming a high-strength, self-healing interface with the glass substrate; a photothermal response radiation modulation layer disposed on the self-healing adhesion layer for passively adjusting the emissivity of its infrared band according to ambient temperature; a gradient porous radiation layer disposed on the photothermal response radiation modulation layer for efficiently emitting infrared radiation in the 8-13μm band; and an environmentally friendly interface reinforcement layer disposed on the gradient porous radiation layer. This invention, through its self-healing adhesion layer, achieves, for the first time in the field of radiation cooling films, autonomous repair of interface damage, fundamentally solving the problem of debonding failure caused by stress fatigue in curtain wall applications and greatly extending its service life.

The application provides a cooling and capacity-increasing overhead conductor, a dynamic ampacity determination method, a medium and equipment, and relates to the technical field of power transmission lines.The method sets the overhead conductor to adopt a three-layer composite structure, the outer layer is a passive cooling coating, the thickness is 50-200 mu m, the surface has micro-nano structures for enhancing mid-infrared radiation, the emissivity is greater than or equal to 0.92, and the contact angle is greater than 120 degrees after hydrophobic modification treatment;the intermediate layer is a high-conductivity aluminum alloy conductor layer, and the inner layer is a high-strength galvanized steel core;the coating and the conductor layer form a directional heat conduction path through a gradient thermal conductivity material, and the thermal conductivity coefficient of the gradient material increases from the coating to the conductor layer;the coating is coated in an axial segmented coating or a reticular coating manner.The overhead conductor can effectively increase the ampacity of the line and optimize the power transmission design of the line, and the dynamic ampacity determination method can obtain a quantitative index of the capacity-increasing effect.

The utility model discloses an annealing device for production of anti-falling bucket teeth. The annealing device comprises a fixing plate, a controller, an annealing furnace body, an annealing operation mechanism, an air cooling mechanism and an infrared thermal imaging detector, wherein the controller is mounted on the fixing plate; the annealing furnace body is fixedly connected onto the fixing plate; according to the utility model, the bucket tooth is placed in the infrared thermal imaging detector, the infrared thermal imaging detector detects the bucket tooth, and the detected image is transmitted to the display screen of the controller, so that the detection data can be conveniently stored, and the annealing quality of the bucket tooth can be judged by detecting the bucket tooth through the infrared thermal imaging detector.

The invention relates to a preparation method of a polyethylene terephthalate (PET)-based functional composite material and application of the PET-based functional composite material in passive radiation refrigeration, and belongs to the technical field of macromolecular functional composite materials and passive thermal management. The method comprises the following steps: carrying out controllable non-complete degradation regulation and control on PET, and forming a reaction precursor system on the premise of keeping PET as a polymer continuous phase and machinability thereof; the preparation method comprises the following steps: taking a PET continuous phase as a raw material, then treating in the same reaction system under an alkaline condition to generate a ligand species capable of participating in a coordination reaction, directly introducing soluble metal salt, inducing a metal-organic framework (MOF) to perform in-situ nucleation and limited growth in the PET continuous phase under an acidic pH buffer condition, and washing and drying to obtain the PET-based functional composite material. The obtained composite material has high solar reflection characteristic at the wave band of 0.3-2.5 microns, shows enhanced mid-infrared thermal radiation emission capability at an atmospheric window of 8-13 microns, can be processed into a film or coating form, and is used for passive radiation refrigeration application without external energy input.

A hollow structure is arranged in the center of the yarn, nano particles are filled in a non-hollow area, and the section of the yarn is a triangle with an inner arc-shaped edge. Still air is reserved in the hollow structure to form a heat insulation layer, the triangular section reduces the contact area between yarns to reduce heat conduction, and the arc-shaped edges increase porosity to improve air retention capacity; the nanoparticles inhibit heat conduction through an interface thermal resistance effect, and absorb and re-radiate heat of a human body by utilizing high emissivity of a middle infrared band, so that loss is reduced; the triangular edges accelerate moisture absorption and sweat releasing through the capillary effect. The problems of thermal imbalance caused by high heat conduction, limited aerogel addition and insufficient air retention of a circular cross section of a traditional material are solved, and the composite material has the advantages of low heat conduction, high heat storage and dynamic comfort, and is suitable for high and cold environments and sports textiles.

This invention provides a composite coating based on FPEEK, its preparation method, and its application, relating to the field of polymer composite materials technology. The preparation method involves adding polyaspartic acid ester (a polyurea precursor) to an FPEEK solution and dispersing it uniformly, then introducing h-BN and TiO2 inorganic fillers, and finally adding isocyanate to initiate curing. During this process, the in-situ generated polyaspartic acid ester molecular chains interpenetrate and entangle with FPEEK, forming a strong interfacial bond "dual-resin" continuous phase matrix, which greatly enhances the coating's cohesive strength and substrate adhesion. Simultaneously, this composite matrix effectively stabilizes and disperses h-BN and TiO2 nanofillers, preventing their aggregation and ensuring uniform distribution within the coating, synergistically imparting high solar reflectivity and high-to-medium infrared radiation characteristics to the coating.

The utility model discloses an infrared signal emission circuit and a winged insect detection device, the infrared signal emission circuit is applied to winged insect detection, and the infrared signal emission circuit is characterized in that the output end of a communication circuit is connected with the input end of a digital-to-analog conversion circuit, and the communication circuit is used for receiving and sending an infrared LED control signal; the output end of the digital-to-analog conversion circuit is connected with the input end of the voltage division circuit, and the digital-to-analog conversion circuit is used for converting an infrared LED control signal into a first reference electric signal and sending the first reference electric signal to the voltage division circuit; the voltage division circuit is used for generating a second reference electric signal according to the first reference electric signal and sending the second reference electric signal to the constant-current driving circuit; the constant-current driving circuit is used for generating a first electric signal according to the second reference electric signal. According to the utility model, the digital-to-analog conversion circuit is arranged, so that the conversion of the driving signal of the infrared LED in the infrared signal transmitting circuit in the winged insect detection process is realized, and the unstable working state of the infrared LED caused by the influence of the environment and the working time on the infrared signal transmitting circuit is avoided.

A method and apparatus for contactlessly determining the temperature of stranded and / or granular objects in a stream of conveyed material, in which infrared sensors are used to capture the radiation field of the stream of conveyed material flowing past against a background, and the temperature of the stranded or granular objects is determined from the measurement signal from the infrared sensors, wherein the temperature of the background, against which the stream of conveyed material to be measured flows past, is varied in terms of time and / or location by means of a temperature control apparatus, wherein degrees of fluctuation are determined from the measurement signal from the infrared sensors for different background temperatures and the position of a minimum fluctuation is determined from these degrees of fluctuation, wherein the object temperature is determined from the value of the measurement signal at the time / location of the minimum fluctuation.

Air conditioning device (1) comprising a heat source detection unit (20) provided on a front of a housing, wherein the heat source detection unit (20) comprises: an infrared sensor (33) designed to detect a heat source in an air-conditioned room, a mounting element (40) that carries the infrared sensor (33), and a cover element (50) that accommodates the infrared sensor (33) and the mounting element (40), wherein the cover element (50) is made of a material that does not allow infrared rays to pass through, wherein the cover element (50) has an opening (56), wherein the retaining element (40) and the cover element (50) are designed such that they can be rotated about an axis extending in a vertical direction, and wherein the infrared sensor (33) is configured, together with the mounting element (40), to be rotated about the axis extending in the vertical direction between a reference position in which the infrared sensor (33) faces the front of the air conditioning device (1) and a rotation stop position in which the infrared sensor (33) does not face the front of the air conditioning device (1), when the infrared sensor (33) is rotated in a first direction, which is a direction from the reference position towards the rotation stop position, and the infrared sensor (33) is facing the air-conditioned room, and when the infrared sensor (33) is rotated in a second direction, which is a direction from the rotation stop position towards the reference position and which is the opposite direction to the first direction, and the infrared sensor (33) is facing the air-conditioned room, the mounting element (40) and the cover element (50) are rotated, wherein the infrared sensor (33) is arranged so that it faces the opening (56), and when the cover element (50) is rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the air-conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, and when the cover element (50) is rotated in the second direction towards the rotation stop position after it has been rotated further in the first direction from the rotation stop position, and the infrared sensor (33) is not facing the air-conditioned room, the infrared sensor (33) is arranged such that it faces the part of the cover element (50) in which the opening (56) is not formed, until the cover element (50) reaches the rotation stop position.

The invention discloses olefin food packaging film preparation equipment, and relates to the field of food packaging film preparation. The olefin food packaging film preparation equipment comprises a workbench, a motor main body is installed on the workbench, a speed reducer main body is installed on one side of the output end of the motor main body, the output end of the speed reducer main body is fixedly connected with a screw main body, the screw main body is sleeved with a screw sleeve, and the upper portion of the screw sleeve is fixedly connected with a material receiving conical barrel; spiral blades are fixedly connected to the peripheral wall of the screw body, and a thermal infrared imager is arranged on the back face of the screw sleeve. According to the olefin food packaging film preparation equipment, the structure of the thermal infrared imager is installed on one side of the screw sleeve, a temperature control mechanism independently operates in all areas, ultra-stable temperature control is achieved, the thermal infrared imager conducts real-time detection in the processing process of raw materials, a terminal analyzes detection data, automatic shutdown and error reporting are achieved, and the production efficiency is improved. And accurate temperature gradient adjustment of the machine barrel along the way can be conveniently realized.