28results about How to "Guaranteed detection effect" patented technology

This invention relates to the field of viscosity detection technology, and discloses a rotational viscometer and a method for detecting surfactant viscosity. The invention utilizes a multi-axis leveling mechanism to ensure the horizontal state of the detection mounting frame and the rotational drive mechanism during position adjustment. The rotational drive mechanism outputs a rotational speed through a drive connector, which rotates within the protective frame to detect the viscosity of the surfactant in the measurement container. The leveling of the rotational drive mechanism effectively prevents rotor offset during rotation, thus ensuring the accuracy of the viscosity of the solution obtained from the rotor's output rotational speed. Furthermore, the protective frame ensures that the rotor's rotation occurs within the frame, limiting the detection space and enabling more efficient acquisition of the solution's viscosity.

The application discloses a temperature-programmable temperature-variable pyrolysis sampling ionization system and mass spectrometer, and relates to the field of mass spectrometer. The sampling ionization system comprises a casing, a heating assembly, a cooling structure, a controller and an ionization source. The heating assembly and the cooling structure are installed in the casing, and the heating assembly is configured to form a sampling cavity. The application can quickly cover the melting boiling point of the required detection sample, and stably consider low-melting boiling point and high-melting boiling point samples, so as to ensure the detection precision and detection capacity. When the concentration of the detection sample is relatively high, the temperature of the sampler is set to the highest through program control after the detection is completed, so that the cleaning work of the sampling cavity is performed, and the pollution problem of the next sampling detection is reduced.

This invention discloses a frequency-domain guided multi-scale deformable alignment method and system for UAV target detection. The method first acquires and preprocesses a dataset of UAV aerial images. Next, it improves the YOLOv8 model, performing target detection based on the preprocessed UAV aerial image dataset and outputting the target detection results. Finally, the improved YOLOv8 model is integrated into a pre-configured training environment, using training and validation images from the UAV aerial image dataset for training and validation. This invention significantly enhances the model's ability to perceive small targets, thereby significantly improving the localization and classification accuracy of small targets, reducing detection errors, and improving overall accuracy.

The application belongs to the technical field of application software development test, and discloses an application software development test system with real-time vulnerability detection, which comprises a code real-time collection module, a multi-dimensional vulnerability detection module, a vulnerability accurate positioning module, a vulnerability risk quantitative evaluation module, a dynamic repair guidance module, a data storage module, a visual interaction module and an iterative optimization module, and each module cooperates to form a whole-process closed-loop vulnerability detection and management and control system. The application software development test system with real-time vulnerability detection is adopted, real-time capture, accurate positioning, risk evaluation and dynamic repair suggestion output of the vulnerability are realized, and the software development test efficiency and application program security are improved.

The application discloses a kind of based on image data's track area abnormal detection method and device of machine tool, it is related to image recognition technical field.The method includes: using image recognition algorithm, introduce multi-objective optimization algorithm, build machine tool target detection model, and connect to candidate region segmentation engine and space-time correlation filter engine;Video stream of track area is collected, and pretreatment is carried out, and the image data of continuous frame is obtained;The image data of continuous frame is input to candidate region segmentation engine, and the ROI region of each frame of image data is obtained;ROI region is input to machine tool target detection model, and the detection frame of machine tool target is obtained;The detection frame of machine tool target is input to space-time correlation filter engine, identifies stationary effective target, and carries out abnormal detection to stationary effective target.The application solves the problems of low detection accuracy, difficult model deployment and poor anti-interference ability in the prior art.

The application discloses a frame structure design method of an AFDM system based on adaptive asymmetric guard bands, solves the problem that the frame structure design of the AFDM system under a high dynamic channel is difficult to simultaneously consider the bit error rate of a receiving end and spectral efficiency, and belongs to the technical field of information and communication.The application comprises the following steps: performing frame-level reliability determination according to a demodulation result vector of a current frame, when a corresponding threshold is satisfied, the current frame accesses an adaptive updating process; on the current frame that accesses, candidate pairs of a time delay index and a Doppler index are obtained, an effective path set of the current frame is screened out, a maximum Doppler spread priori and a Doppler energy directionality priori are extracted from the effective path set, a total guard band width of a next frame and a smooth direction factor are determined, asymmetric distribution of the lengths of guard bands on the left and right sides of a pilot is carried out according to the total guard band width of the next frame, the guard bands are relatively widened on the side of a Doppler energy concentration and are relatively shortened on the side of energy sparseness, and a next frame adaptive asymmetric guard band and a data area layout are generated.

The application discloses a back contact film-coated battery string, a plurality of film pieces, a plurality of battery pieces and a plurality of welding strip groups, the back light surfaces of the plurality of battery pieces are connected in series along a first direction through the plurality of welding strip groups, the plurality of film pieces are covered on the back light surfaces of the plurality of battery pieces, and the area of the film piece is greater than the area of the covered battery piece. The technical scheme can solve the problem that in the EL detection of the back contact film-coated battery string, the side edges of each battery piece in the back contact film-coated battery string are not fixed by the adhesive film, and the corresponding area in the image formed by the electroluminescence is prone to appear shadow, thereby causing the poor EL detection effect.

This invention belongs to the field of target detection technology and discloses a lightweight small target detection method for complex coal mine scenarios. The method includes: inputting the image to be detected into a trained ML-YOLO model; obtaining and outputting the target detection results of the ML-YOLO model on the image to be detected; wherein, the ML-YOLO model is an improvement based on the YOLOv11s model, and the ML-YOLO model includes a backbone network, a neck network, and a detection head. The improvement includes: replacing the C3k2_MDConv module in the YOLOv11s model in the backbone network. The C3k2 module is replaced with the LAPConv module to replace the convolutional module in the deep extraction stage of the YOLOv11s model; in the neck network, the C3k2 module in the YOLOv11s model is replaced with the C3k2_MDConv module; in the detection head, the MBPA detection head is replaced with the original detection head of the YOLOv11s model. This invention can significantly reduce the number of parameters and computational overhead while maintaining detection capabilities, and has better lightweight performance than existing technologies, making it better suited to the requirements of model deployment in underground coal mine edge computing scenarios.

This invention discloses a paragraph-level generated text detection method based on deep maximum mean difference (MDD) metric. The method includes: modeling generated text detection as a nonparametric two-sample test problem; designing a deep composite kernel to fuse shallow syntactic features and deep semantic features; training a deep kernel network with the goal of maximizing unbiased estimation of test power; in the testing phase, introducing a Wild Bootstrap mechanism to generate random weight sequences with autoregressive structures; performing a weighted quadratic transformation on the MMD kernel difference matrix; preserving paragraph sentence sequence correlation; accurately estimating the null distribution of the test statistic; and completing the detection by comparing the observed statistic with the test threshold. This method improves sensitivity to high-dimensional semantic differences, alleviates the problem of decreased test power caused by sequence correlation, and can efficiently distinguish between human and AI-generated text. It is suitable for generated text detection in scenarios such as news and academic writing.

This invention provides a fault detection device for an automotive air conditioning compressor, relating to the field of automotive air conditioning compressor testing technology. It includes a housing, within which a control structure and two multimeters are installed. A fan is mounted on the lower side of the housing, and a blowing structure and three wiring structures are mounted on one side of the housing. The wiring structures correspond to the control structure and the multimeters, and the blowing structure corresponds to the wiring structures. Each wiring structure has a connector, a first snap-fit ​​structure between the connector and the wiring structure, an insulation structure inside the connector, and a second snap-fit ​​structure between the connector and the insulation structure. In this invention, by installing the control structure and two multimeters inside the housing, the resistance between the terminals can be detected using the two multimeters, improving detection efficiency. Furthermore, by using the wiring structures for detection, only one wiring is required; by sequentially using different multimeters to test the resistance data between different terminals, rewiring is unnecessary.

This utility model discloses a high-precision differential pressure transmitter, including a mounting plate. A groove is formed in the center of the mounting plate, and an opening communicating with the groove is formed inside the mounting plate. A bidirectional screw is rotatably fitted within the opening, and clamping components are threaded onto both ends of the bidirectional screw. A protective box is mounted on the upper side of the mounting plate, containing the clamping components and the differential pressure transmitter body. A fixing component corresponds to the differential pressure transmitter body. This utility model utilizes a sliding plate that slides within a recessed block, causing multiple teeth to mesh with two sector gears, thereby driving two arc-shaped clamping plates to move closer or further apart. The distance between the two arc-shaped clamping plates can be adjusted according to different pipe sizes, thus clamping and fixing pipes of different sizes, achieving stable support for the differential pressure transmitter body, and effectively reducing the occurrence of pipe bending or damage.

The utility model relates to a kind of auxiliary rotation resistance devices of pusher bar of step-by-step heating furnace, including pusher base, the pusher bar is equipped in the pusher base along pusher length direction, signal detection baffle ring is equipped in the pusher bar, the side of pusher bar is equipped with guide rod along pusher length direction, the signal detection baffle ring is equipped with guide hole, the guide rod is passed from guide hole inside.The utility model is guided rod in the side of pusher bar, and guide hole is set on signal detection baffle ring, so that guide rod is passed from guide hole inside, by the restriction of guide rod, signal detection baffle ring can be effectively prevented with the axis of pusher bar as center of rotation, ensure the detection effect of signal detection switch;Simple structure, convenient to use, low manufacturing cost.

A multi-point positioning device for inductor pressure testing includes a test platform with a bottom support bracket at its base. The bottom support bracket and the test platform are fixed together by welding. A test fixing component, a test mold, is installed on the test platform to fix the inductor for testing. The integrated welded bottom support bracket is combined with the test platform to ensure a stable and reliable overall structure. A drive cylinder, in conjunction with an assembly flange, controls the movement of the inductor detection head. The inductor detection head is used for inductor testing, further ensuring the accuracy and repeatability of the testing. The moving guide rail and fixing screws within the test mold effectively guarantee the accuracy and repeatability of multi-point positioning. The drive cylinder and push rod enable automatic inductor clamping, improving testing efficiency.

This invention provides an automatic SAR target detection method and apparatus based on adaptive feature focusing, belonging to the field of SAR image detection. The method includes: constructing a lightweight EOD-Net; after the backbone network extracts multi-scale features, the latent target perception branch PTBranch outputs a mask to coarsely locate the target region; and using a no-overlap feature map cropping NOFC to iteratively remove overlapping blocks, retaining only non-overlapping target feature blocks for the detection head to regress. During the training phase, a Gaussian-binary hybrid mask supervises PTBranch, and the focus loss and DICE loss are jointly optimized. This invention outperforms comparable methods such as YOLOv11 and Faster RCNN, achieving high-precision and efficient SAR image detection.

The utility model relates to the technical field of oil drilling exploitation, concretely to a kind of drilling fluid liquid level height detection alarm device, including wellbore, the cavity is equipped in wellbore inside, annular gear disc is fixed in the cavity inside, the movable gear is engagedly connected in the annular gear disc inside, the movable gear front end is equipped with protection box, the antenna is fixed in the protection box top, alarm is fixed in the protection box inside upper surface, ultrasonic liquid level sensor is fixed in the controller left end, laser liquid level sensor is fixed in the ultrasonic liquid level sensor front end, the front box door is slidably connected in the protection box bottom, the rear box door is equipped in the front box door rear portion and the protection box sliding connection;The utility model can make movable gear rotate along annular gear disc by movable gear rotation, to drive connecting block to move along annular gear disc, so that the whole device can detect the drilling fluid of wellbore inside any position, to improve the use range of the device.

This application discloses a method for correcting misjudgments in high-speed multi-type event detection based on LoRA, relating to the field of intelligent transportation technology. The method includes: acquiring real-time event information on the highway, identifying it using the YOLO algorithm, and outputting the original preliminary event detection results and environmental parameters; standardizing the preliminary detection results and extracting semantic and scene features of the event targets from the preliminary detection results to obtain standard preliminary detection results; performing secondary verification and misjudgment correction using a LoRA-optimized large model based on the standard preliminary detection results to obtain the event detection results; uploading the event detection results to the road segment central monitoring platform, and retaining misjudged, missed, and new scene samples for iterative optimization. This application aims to resolve the contradiction between the low reliability of event detection in complex highway environments and the inability to deploy high-precision large models at low cost and high efficiency under existing hardware conditions.

The utility model provides a kind of aerial work safety belt state monitoring terminal, belong to aerial safety belt technical field;Including: belt body, and the alarm component installed on belt body;The alarm component includes locating block, the inner wall of the locating block is equipped with circular groove, the inner wall of the circular groove is fixedly equipped with spring, the end of the spring is fixedly equipped with connecting block.The utility model is equipped with hall sensor at buckle, the buckle is monitored by hall sensor, when buckle is jammed and cannot be fixed to binding belt, signal receiver receives the signal of hall sensor, and signal is transmitted to alarm, finally, staff is warned by alarm, and buckle is reconnected, it is beneficial to monitor when buckle is connected, so that buckle can complete connection and fixation, and protect the protection effect of staff.

This invention discloses an optical imaging detection device and its automatic focusing method. The optical imaging detection device includes at least: a stage, a light source, a field stop, an objective lens unit, a baffle unit, a first detection unit, a second detection unit, and a control unit. The field stop includes a light-transmitting imaging field of view and a light-transmitting focus mark area. An incident beam emitted from the light source forms a first incident sub-beam through the imaging field of view, and a second incident sub-beam through the focus mark area. The baffle unit is used to block part of the second incident sub-beam to adjust the numerical aperture of the second incident sub-beam converged to the sample under test by the objective lens unit. By coupling the focusing optical path in the optical imaging detection device, the focusing optical path and the imaging optical path use the same light source, improving focusing stability. By using the baffle unit to block part of the second incident sub-beam, the accuracy of obtaining the imaging position of the focus mark area is improved, ensuring the subsequent detection effect of the sample under test.

This utility model discloses a combined light source device for stripe light and tunneling light, relating to the field of detection light source technology. The combined light source device includes a housing and light source components; a first light source assembly is disposed within a first accommodating space; a first end of a reflector is connected to the wall of the first accommodating space, and a second end of the reflector is located between a mounting opening and a first light-emitting port, with the reflective surface of the reflector facing the first light-emitting port; a second light source assembly is disposed at the mounting opening, above the second end of the reflector, and connected to the housing; a mounting plate is disposed between a diffuser plate and a reflector, connecting the second ends of the diffuser plate and the reflector plate; the second ends of the diffuser plate and the reflector plate are at least partially vertically opposite each other, and are also vertically opposite to the first light-emitting port. The light-emitting surfaces of the first and second light source assemblies of this utility model have a continuous and seamless transition, with high brightness in the joint area, ensuring effective detection.

The utility model relates to a water environment detection device. Including the box, be equipped with the window on the front wall of box and install water quality detection appearance host computer in the window, install the slide rail on the bottom wall of box and install the slide seat on the slide rail, install and fix a plurality of detection branch pipes and detection main pipe on the slide seat, be equipped with the connecting sleeve pipe on the top of the middle part of each detection branch pipe, install detection probe in each connecting sleeve pipe, be equipped with solenoid valve in each detection branch pipe, the front and rear of connecting sleeve pipe, be equipped with a plurality of pipe holes on the side wall of box and each detection branch pipe is located in each pipe hole, be equipped with the box wall interface pipe on the side wall of box, connect the water taking pipe on the box wall interface pipe, still be equipped with the pumping assembly of the water source delivery detection main pipe in the inside of box in, be equipped with battery module and control circuit board on the inner chamber upper portion of box. The utility model need not form water sample sample before detection, promote the convenience and detection efficiency of detection operation, guarantee detection effect.

The present application relates to the technical field of installation and commissioning of self-elevating platforms, and particularly relates to a seawater cooling system of a self-elevating platform. The seawater cooling system of the self-elevating platform comprises a seawater cooling module, a docking module, a first connecting pipeline and a second connecting pipeline. The seawater cooling module, the docking module and the second connecting pipeline all belong to the self-owned structure of a ship. The seawater cooling module has a cooling demand. The docking module comprises a reaction cabin and a distribution cabin. The seawater in the reaction cabin is used for cooling the seawater cooling module, and the seawater in the distribution cabin is used for neutralizing the heat of the seawater in the reaction cabin. The first connecting pipeline is configured to communicate the output end of the seawater cooling module with the input end of the reaction cabin and the output end of the distribution cabin respectively. The first connecting pipeline can control the conduction and isolation between any two of the seawater cooling module, the reaction cabin and the distribution cabin. The second connecting pipeline is configured to communicate the output end of the reaction cabin with the input end of the seawater cooling module.

The application discloses a multi-modal three-dimensional target detection method based on structural feature and semantic feature fusion, and belongs to the technical field of target detection.The application solves the problems of low precision, poor real-time performance and insufficient robustness of the existing method.The application constructs an explicit matching fusion mechanism of low-layer structure guided initialization, high-layer semantic optimization and time sequence expansion, projects 3D boundary boxes of a laser radar and a camera to multi-view image planes, calculates geometric similarity and category consistency constraints of 2D projection regions, and constructs an explicit matching graph in combination with low-layer structure information and high-layer semantic features.The application guides weighted aggregation of cross-modal target features with high confidence through a sparse matching graph, aligns historical frame targets to a current frame coordinate system to construct a space-time matching graph, aggregates historical information through expansion to a time sequence dimension, and realizes efficient and accurate three-dimensional target detection of the laser radar and the visual multi-view camera.The application method can be applied to multi-modal three-dimensional target detection.

The application belongs to the technical field of water conservancy engineering detection, and particularly relates to a detection device for water conservancy construction sites, which comprises a sensor module, a floating plate, a float, a mounting cylinder, a sliding rod and a mounting seat. The bottom end of the mounting cylinder is connected with the float. The inside of the float is provided with the sensor module. The bottom end of the float is provided with a filter cylinder. The bottom end of the sensor module is arranged in the inside of the filter cylinder. The floating plate is slidingly sleeved on the outer wall of the filter cylinder. The inner wall of the floating plate is rotatably provided with a corrugated sleeve. The upper end of the corrugated sleeve is connected with the bottom wall of the float. One side of the floating plate is provided with a baffle. The inner wall of the baffle is rotatably provided with a roller. The outer wall of the float is provided with a guide groove. The guide groove extends upwardly and upwardly from the two bottom ends of the float and is communicated with the upper end of the float. The roller is slidingly matched in the guide groove. The whole device floats and detects with the drainage water level, and will not be washed away by the water flow and will not be hung with slag. The application is suitable for temporary, sudden or irregular drainage water quality detection.

This invention belongs to the field of length measurement technology and discloses a length measuring device for precision power component testing. It includes a base and a tubular component, which is clamped by a clamp. The device also includes a shaping component, which is located on top of the base. The invention uses two plastic sleeves inserted into the tubular component. A pressure plate pushes the clay inside the plastic sleeves, causing the clay to move along the sleeves into the tubular component, filling the interior of the component. By pulling the two pressure components and the shaping component in the opposite direction, the two plastic sleeves are detached from the tubular component. The length inside the tubular component is then replicated using the plastic sleeves. Measuring this replicated length allows for accurate measurement, avoiding the problem of small diameter holes in the tubular component preventing the insertion of calipers for length measurement, thus ensuring the inspection and verification of component processing quality.

This invention provides a surface deformation monitoring device for coal mine subsidence areas, belonging to the technical field of monitoring devices. It includes a fixed base plate, a supporting structure mounted on the fixed base plate, an adjusting structure slidably fitted on the fixed base plate, a fixing structure mounted on the adjusting structure, a locking structure between the adjusting structure and the fixed base plate, a detection structure within the supporting structure, a monitoring structure mounted on the supporting structure, the detection structure corresponding to the adjusting structure, a pushing structure between the supporting structure and the detection structure, and a stabilizing structure within the detection structure, the stabilizing structure corresponding to the pushing structure. In this invention, the adjusting structure is slidably installed on the fixed base plate, and the fixing structure is installed on the adjusting structure. The fixing position of the fixing structure can be adjusted by the adjusting structure, thereby better fixing the device to the ground as needed, ensuring the stability of the device. Furthermore, the position of the adjusting structure can be locked by the locking structure.

The application discloses a kind of equipment for regulation bottle detection, it includes support seat, auxiliary mechanism and limiting portion;The support seat is provided with the first support part and the second support part of rotation, the first support part and the second support part form the detection station for supporting regulation bottle autorotation;The limiting portion is set to the side of regulation bottle bottle bottom direction of the detection station, or the limiting portion is set to the side of regulation bottle bottle mouth direction of the detection station;The auxiliary mechanism is set to the position adjacent to the detection station, and the regulation bottle of the detection station is used to move to the limiting portion under the action of the auxiliary mechanism.The above-mentioned scheme can solve the problem that the current regulation bottle detection equipment causes random forward and backward jumping of regulation bottle in axial direction in the detection process of regulation bottle autorotation due to regulation bottle itself and equipment, etc., thereby causing the risk of regulation bottle falling from detection station and affecting the detection effect of regulation bottle.