37results about How to "Guaranteed miniaturization" patented technology

The invention discloses an unmanned aerial vehicle remote sensing tree species classification method and system fusing a cascade canopy attention mechanism, and the method comprises the steps: obtaining unmanned aerial vehicle RGB image data of a campus scene, carrying out the preprocessing of the data, and obtaining a standardized input image; constructing a classification model fusing the cascaded canopy attention mechanism, wherein the classification model comprises a background suppression module, a fine-grained feature guide module, a channel alignment neck module and a global-local fusion classification head; inputting the standardized input image into a classification model, and obtaining an enhanced canopy image through a background suppression module; inputting the enhanced canopy image into a module carrying fine-grained feature guidance, and extracting fine-grained canopy features; performing channel calibration and feature smoothing on the fine-grained canopy features through a channel alignment neck module to obtain feature mapping of a unified dimension; and fusing the global canopy semantics and the local texture structure in the feature mapping by using a global-local fusion classification head, and outputting a tree species classification result.

The utility model discloses a filtering device for printing ink manufacturing, and belongs to the technical field of filtering devices. The device comprises a filter box and a scraping mechanism, a driving part is arranged in the middle of the bottom of the filter box, a protective shell is arranged outside the driving part, the scraping mechanism comprises a mounting sleeve, the mounting sleeve is arranged at the output end of the driving part, two symmetrical connecting rods are arranged outside the mounting sleeve, one end of each connecting rod is provided with a third scraping strip, and the other end of each connecting rod is provided with a second scraping strip. A fourth scraping strip is arranged at the bottom end of the third scraping strip, and first scraping strips are arranged at the bottoms of the two connecting rods correspondingly. The outer wall of the protective shell and the inner wall of the filter box are synchronously scraped through the first scraping strip and the third scraping strip respectively, printing ink residues are minimized, raw material waste is reduced, the second scraping strip and the fourth scraping strip which are obliquely arranged are tightly attached to the bottom face of the filter box, dead corner residues which are difficult to treat through a traditional device are effectively removed, and the use effect is good. The problem that raw materials are consumed due to the fact that filtered ink is easily attached to the inner wall and the bottom of equipment and is difficult to scrape thoroughly is solved.

The application relates to a differential current-voltage integrated sensor and a current-voltage measurement system, and belongs to the technical field of power system monitoring. The application comprises a first half-ring unit and a second half-ring unit based on a double-layer PCB. The two half-ring units are designed in an upper-lower symmetry mode to form an open-close structure. A live bus bar passes through the middle cavity of the two half-ring units, and a Rogowski coil electronic current sensor and a differential D-dot voltage sensor are integrated on the integrated sensor. Based on the integrated sensor, synchronous measurement of current and voltage can be realized, the integrated sensor is highly integrated, the space utilization is extremely optimized, and the integrated sensor has a convenient opening and closing function.

The utility model provides a front brake disc dust cover which comprises a cover body, a plurality of mounting bolts are inserted into mounting holes formed in the cover body in a penetrating mode, the rear sides of the mounting bolts are in threaded connection with a hub bearing seat, a plurality of rotating columns are rotationally arranged in the cover body, the rear side of each rotating column is provided with a rotating clamping block, and the rotating clamping blocks are connected with the hub bearing seat in a threaded mode. A plurality of butt joint notches are formed in the front side of the hub bearing seat, each rotary clamping block is installed in cooperation with the adjacent butt joint notch, a limiting ring is arranged on the rear side of the outer arc face of each rotary column, and an elastic driving unit is arranged on the rear side of the limiting ring and the rear side of the cover body. According to the dust cover for the front brake disc, rapid preliminary positioning can be carried out when the dust cover is installed, so that personnel can rapidly install the dust cover without adjustment, the installation time is greatly shortened, the working efficiency is improved, the workload of the installation personnel is reduced, and the labor intensity of the personnel is reduced. And particularly, the fatigue feeling can be obviously reduced during large-batch installation.

One aspect of the invention relates to a steel suitable for hot pressing, and more specifically, to an aluminum-coated steel sheet for hot pressing, a hot-formed component, and a method for manufacturing the same. Furthermore, another aspect of the invention relates to a forming apparatus and method for forming high-strength steel, and a battery casing support formed by the apparatus and method, and further to a battery pack module.

The invention discloses a high-voltage strontium titanate ceramic material and application thereof, and belongs to the technical field of lead-free dielectric ceramic materials. The chemical general formula of the high-voltage strontium titanate ceramic material is (SrmAnBnCqDs) (TixEyFy) O3, wherein m + 2n + q + s = 1, m, n, q, sgt; 0, x + 2y = 1, xgt; 0, 0 < y < = 0.2; the element A and the element B form an A-B heterovalent element pair, the sum of element valence states of the A-B heterovalent element pair is 4, and at least one A-B heterovalent element pair is arranged; the element C and the element D are not element pairs, the valence states of the elements are positive bivalent, and the element A, the element B, the element C and the element D are different in composition elements; the element E and the element F form an EF hetero-valent element pair, the sum of element valence states of the EF hetero-valent element pair is 8, and at least one EF hetero-valent element pair is arranged. The breakdown voltage and capacitance of the high-voltage ceramic capacitor can be improved while the miniaturization of the high-voltage ceramic capacitor is maintained.

The application discloses a kind of corrosion-resistant shielding cover, be provided with first shielding cover and second shielding cover, the first shielding cover and second shielding cover between being provided with assembly component, the first shielding cover is provided with first shielding space, the second shielding cover is provided with second shielding space, the first shielding space and the second shielding space for electrical component shielding high-voltage arc are provided with partition, both ensure the structural stability under high pressure environment, and simplify field installation process, partition is guided assembly by hollow groove and adaptive groove, precise positioning is realized, its lifting jack is convenient for operator to operate dismounting, maintenance efficiency is significantly improved, the setting of assembly flange and locking bolt enhances the adaptability with other electrical components, and the design of reinforcing plate embedding assembly side groove is targetedly strengthened local structural strength, effectively resist high-voltage arc impact.

The application discloses a transmitting integrated module of a laser radar, which comprises a chip module, a collimating mirror 1, a collimating mirror 2, an isolator 1, an isolator 2, an isolator 3, a polarization beam splitter, a reflecting / transmitting lens, a reflecting mirror, a coupling mirror 1, a coupling mirror 2, an exit tail fiber, a Faraday rotating mirror and a filter. The application provides a novel integrated laser module, which adopts free space coupling and utilizes light polarization state to realize light path coupling. Since the chip is integrated and packaged, the transmitting module of the laser radar is ensured to be small in size and reliable.

The invention discloses a light-emitting element, and the element comprises an LED chip which is provided with a first surface, a second surface opposite to the first surface, and a side wall connected with the first surface and the second surface. The wavelength conversion layer is at least arranged on the first surface of the LED chip; the electrode expansion structure is arranged on the second surface of the LED chip; the packaging layer at least surrounds the LED chip, the wavelength conversion layer and the electrode expansion structure; and at least one functional structure module selected from the group consisting of the following structure modules. The method can flexibly adapt to different application scenes.

The invention discloses a civil unmanned aircraft position detection device, and belongs to the technical field of unmanned aircraft position detection equipment.The civil unmanned aircraft position detection device comprises antennas arranged at the upper end of a shell, a satellite positioning signal antenna is in signal connection with a GPS Beidou satellite, a 5G frequency band antenna is connected with an operator 5G-A base station, and the 5G frequency band antenna is connected with an operator 5G-A base station. The 5G frequency band antenna is connected with a 5G frequency band signal receiving module arranged in the shell, other antennas are connected with respective signal receiving and analyzing modules arranged in the shell, an output end of each signal receiving and analyzing module is connected with an input signal bus of the operation module, a control signal bus is connected with the internal management module, and the internal management module is connected with the 5G frequency band antenna. The interaction signal bus of the operation module is connected with the 5G communication assembly and the wired network card of the communication module. According to the invention, real-time tracking and detection of the position of the civil unmanned aerial vehicle in a detection range are realized, guarantee is provided for supervision compliance and safety of the unmanned aerial vehicle, interference of the unmanned aerial vehicle on civil aircraft flight is reduced, and civil aircraft flight safety is ensured.

This invention discloses a highly sensitive detection device and method for immersion-type ultrasonic signal detection in liquids. The invention provides a circular diaphragm with concentric corrugations and a center-thinned structure, and uses this diaphragm as a reflective surface of an optical interference cavity to construct a highly sensitive detection device for immersion-type ultrasonic signal detection in liquids. The diaphragm, used to sense ultrasonic signals, has identical concentric corrugations and a center-thinned structure on both sides, enabling the diaphragm to achieve higher mechanical sensitivity without significantly reducing its natural frequency. The concentric corrugations effectively release initial residual stress introduced during processing and packaging, reducing surface warping and baseline drift. Simultaneously, a replaceable acoustic membrane is constructed in front of the diaphragm, achieving high sound transmission and anti-contamination under long-term immersion in liquid conditions. This detection device can be directly placed in the liquid for detection, improving the sensitivity of ultrasonic signal detection while maintaining a wide frequency range, preventing contamination of the detection element, and ensuring the long-term stability of the detection device.

The utility model relates to the field of vehicle-mounted photovoltaic system, and specifically is a kind of photovoltaic assembly guard plate assembly, including rear guard plate assembly, side guard plate assembly and front guard plate assembly;The both ends of side guard plate assembly are respectively overlapped on rear guard plate assembly and front guard plate assembly;The guard plate assembly includes two side guard plate assemblies, and two side guard plate assemblies are oppositely spaced distribution;Rear guard plate assembly and front guard plate assembly are connected by side guard plate assembly;The horizontal projection of guard plate assembly is in the shape of a Chinese character for "returning", the guard plate assembly disclosed in the utility model is mainly at the four around of photovoltaic assembly, not only can play external protection function, avoid photovoltaic assembly internal component exposure, can also play good aesthetic effect;The utility model is designed by rear guard plate assembly, two side guard plate assemblies and front guard plate assembly, so that guard plate assembly is in the shape of a Chinese character for "returning" structure, this Chinese character for "returning" layout can significantly improve the torsional stiffness of guard plate assembly whole while keeping the light weight of guard plate assembly.

This utility model provides a drilling device for planting sea buckthorn in the desert. A mounting beam is provided in front of the movable base, and a slide rail extending along its length is provided on the mounting beam. A slide block is slidably assembled along the slide rail, and a drill is mounted on the slide block. The drill rod of the drill extends along the length of the mounting beam. A drive component is disposed inside the slide rail. One end of the drive component is hinged to the inner wall of the slide rail, and the other end is connected to two sets of traction lines through the mounting base. One set of traction lines passes from the lower end of the mounting beam and connects to the lower part of the slide block, while the other set of traction lines passes from the upper end of the mounting beam and connects to the upper part of the slide block. Through the cooperation of the drive component and the traction lines, the slide block can slide rapidly, thereby driving the drill to drill efficiently. Using traction lines for driving reduces the length of the mounting beam, thus ensuring the miniaturization of the equipment. Furthermore, the traction lines can precisely drive the drill, ensuring the accuracy of the drilling depth and greatly improving planting efficiency and drilling precision.

The embodiment of the invention provides a middle frame assembly and electronic equipment. The middle frame assembly comprises a middle frame and a grounding structure, and the middle frame is provided with an accommodating space; the middle frame comprises an antenna and a grounding part; the antenna and the grounding part are connected through a connecting rib structure; the grounding structure is fixedly arranged on the grounding part and is positioned in the accommodating space; the grounding structure is provided with a first connecting end and a second connecting end; the first connecting end is used for being connected with a first grounding part on a front shell of the electronic equipment, and the second connecting end is used for being connected with a second grounding part on a display screen of the electronic equipment. Compared with a mode that the front shell and the display screen are respectively provided with grounding structures for grounding, the middle frame assembly provided by the embodiment of the invention can realize connection between the first grounding part of the front shell and the grounding part of the middle frame and connection between the second grounding part of the display screen and the grounding part of the middle frame only through the grounding structures, so that more space is saved; while the antenna performance is ensured, the space occupied by the grounding structure of the front shell and the display screen is reduced.

A connection structure for the fuselage and tail of a wooden model aircraft that facilitates quick assembly and disassembly relates to the field of aircraft model component technology. The structure comprises two main parts: a truss-type tail boom and a tail fin mounting bracket. The main body of the truss-type tail boom is a wooden truss structure with a connecting box at the front and a connecting box slot at the rear, the outer wall of which is glued with carbon fiber reinforcement plates. The tail fin mounting bracket is also a wooden truss structure. The connecting box at its front is used to connect the tail boom, and pre-drilled holes on the outer side of the bracket are used to connect the horizontal stabilizer and vertical stabilizer. A servo mounting component is glued to its bottom. This invention achieves efficient assembly and disassembly through the connecting box design. After disassembly, the components can be stored separately, significantly improving portability. It also allows for quick replacement of individual faulty parts, significantly reducing maintenance costs. Furthermore, it balances overall lightweight design with structural stability, exhibits excellent re-assembly and disassembly performance, and extends the overall lifespan of the model aircraft.

The application provides a projection system. The projection system comprises: a light source; a first dissipation element located on the light exit side of the light source; and a light guiding element configured to receive light emitted by the light source and passing through the first dissipation element along a first light path, and to make the light pass through the first dissipation element again along a second light path. The application solves the problem of poor improvement effect of speckle phenomenon in the prior art projection system.

The utility model discloses a high-strength anti-deformation automobile cross beam, belongs to the technical field of automobile parts, and provides an anti-deformation automobile cross beam which is light in weight and high in strength and comprises a longitudinal beam plate, cross beam plates are arranged on the upper edge and the lower edge of the longitudinal beam plate, and a rib plate is fixedly connected between the two cross beam plates. The rib plate is fixedly connected with the longitudinal beam plate, positioning holes are formed in the two ends of the longitudinal beam plate, a plurality of longitudinal connecting holes are formed in the cross beam plate, connecting pieces penetrate through the longitudinal connecting holes so that the automobile cross beam can be connected with other parts of a frame, a main body part of the longitudinal beam plate is a long longitudinal plate, and the two ends of the long longitudinal plate are connected with short longitudinal plates through inclined longitudinal plates. And the two short longitudinal plates are parallel to the long longitudinal plate. The beam plate structures with the C-shaped sections are designed, and the rib plate structures with the radian are arranged between the beam plate structures, so that the automobile cross beam has high structural strength to resist deformation, meanwhile, the weight of the cross beam is not increased, and the light weight of an ahead automobile is kept.

This invention provides a deep learning-based target detection method for imbalanced image data, relating to the fields of image processing and target detection technology. First, the dataset is augmented by transferring various meteorological styles to minority class samples, expanding the number of minority class samples in the training set to assist the subsequent detection model and mitigate the adverse effects of class imbalance on target detection. Second, a progressive multi-scale feature enhancement module (CSP-MFEA) is designed, which enhances the feature representation ability of difficult samples through a stepped convolutional kernel and a feature splitting and reuse mechanism. A dynamic Tanh polarization self-attention module (DYT-PSA) is designed, introducing a learnable Tanh activation function to suppress easy samples and enhance difficult samples, optimizing the gradient propagation process. Finally, a YOLO-MFEA-DYT detection model is constructed to improve the accuracy, robustness, and generalization ability of the detection model under imbalanced data distribution.

The application provides a launching mechanism suitable for a unmanned aerial vehicle holder, a carbon plate and a friction wheel constitute a bullet accelerating system, the carbon plate is used as a supporting structure of the accelerating device, carbon fiber material is adopted, good strength and light weight characteristics are achieved, the weight of the whole device can be reduced, and the convenience of carrying and operation is improved; the friction wheel is used as a key component of the bullet accelerating, friction force is generated through high-speed rotation, the bullet is quickly accelerated and pushed out of the barrel, and the friction wheel has the characteristics of high efficiency, precision and stability; the steering wheel and the bullet rod constitute a launching control system, the steering wheel is used as a driving device, the action of the bullet rod can be accurately controlled, and the accurate launching of the bullet is ensured; the bullet rod can quickly and accurately send the bullet into the barrel and complete the launching action under the control of the steering wheel, so that the whole launching process has high controllability and stability.

This invention proposes a weakly supervised video anomaly detection method and system based on Wald decomposition. It utilizes a pre-trained feature extractor to extract visual features from video segments; based on Wald decomposition theory, it explicitly decomposes the video feature sequence into deterministic components, harmonic components, and singular components, corresponding to the long-term trend, periodic regularity, and sudden unpredictable disturbances of the video, respectively; it employs an adaptive reconstruction mechanism to perform weighted fusion of each component; it constructs spectral energy distribution and spectral entropy from a frequency domain perspective to characterize the degree of spectral disorder, and uses a sequence prediction model from a temporal domain perspective to measure temporal predictability; and it generates the final frame-level anomaly score through multi-source anomaly evidence fusion. This invention explicitly models the video temporal structure at the generation mechanism level, effectively mitigating the interference of pseudo-anomaly instances, and achieves accurate weakly supervised video anomaly localization with a lightweight model containing only 7.5M parameters.

The utility model relates to the technical field of lasers, and provides a novel laser, which comprises a shell, and a laser chip and a spherical lens which are arranged in the shell, the shell comprises a tube base and a shell cap arranged on the tube base in a covering mode. The shell cap is a full-transparent cap; the laser chip and the spherical lens are respectively arranged above the tube seat; the emergent end of the laser chip faces the spherical lens; the laser chip is electrically connected with the plurality of tube legs; and a plurality of pipe legs extend out of the shell from the pipe seat. According to the utility model, a product side surface light emitting and light path internal coupling mode is adopted, which is convenient for use and assembly in a finished product.

The invention provides a multi-layer composite film for an aerospace wire and a preparation method of the multi-layer composite film, and relates to the technical field of surface film layers. The preparation method comprises the following steps: placing a wire base material in an electrolyte for micro-arc oxidation treatment so as to form an insulating film on the surface of the wire base material; spraying nano dispersion liquid on the surface of the insulating film to form an intermediate layer; carrying out curing treatment on the middle layer to form a hydrophobic membrane; wherein the electrolyte comprises 5-30 g / L of sodium silicate, 0.1-2 g / L of cubic boron nitride, 2-20 g / L of sodium hexametaphosphate, 0.1-1 g / L of titanium aluminum nitride, 0.1-10 g / L of aluminum nitride and 0.1-2 g / L of sodium hydroxide. The performance of the film layer for the aerospace wire can be improved.

The utility model provides a kind of high-density antenna isolation degree enhancement antenna array, belong to antenna technical field, its antenna body is rectangular, and the array unit of rotational symmetry is equipped in top surface four corners, interval is 0.3λ.Antenna body adopts microstrip+dielectric filling to realize low profile, and array unit contains metal radiator outer cover high dielectric constant support insulator to reduce size.Antenna body top surface center cross metal isolation component is made of four vertically arranged concave section isolation plate, and it is accurately placed between adjacent units.The structure effectively blocks electromagnetic coupling path, and the actual measurement isolation degree is improved by more than 15dB compared with traditional scheme, and the surface current dissipation is guided by quasi-periodic boundary condition, without significantly increasing loss.Rotational symmetry layout naturally tolerates process error, ensures phase consistency, and the yield is better than asymmetric design.

The utility model discloses a curtain type safety air bag bag with high inflation reliability. The curtain type safety air bag bag with high inflation reliability comprises an upper air bag piece and a lower air bag piece, the upper air bag piece and the lower air bag piece are stitched to form an air bag cavity, and the air bag cavity is provided with an inflation port. The curtain type safety air bag bag comprises a gas guide reinforcing piece arranged at the inflation port, the gas guide reinforcing piece comprises two first reinforcing pieces and two second reinforcing pieces, the two first reinforcing pieces and the two second reinforcing pieces are located between the upper air bag piece and the lower air bag piece, and the two second reinforcing pieces are located outside the two first reinforcing pieces. The first reinforcing piece has an overlapping part overlapping with the second reinforcing piece and a gas nozzle part extending beyond the second reinforcing piece, the two first reinforcing pieces and the two second reinforcing pieces are stitched at the partial edges of the overlapping part and are provided with gas distribution ports, and the two first reinforcing pieces are respectively stitched with the upper air bag piece and the lower air bag piece at the edges of the gas nozzle part.

The application discloses a kind of ultra-wideband low profile composite structure monopole antenna, including antenna radiator, metal short-circuit column, lumped loading module, metal floor and coaxial connector;The center position of the metal floor is provided with coaxial connector;Coaxial connector is connected with the bottom of antenna radiator;The antenna radiator is located above the center of metal floor and there is a certain spacing between the bottom and the metal floor, metal short-circuit column is set at equal intervals around the antenna radiator, and the bottom of metal short-circuit column is installed on the lumped loading module, and the lumped loading module is located on the metal floor.The application has the characteristics of ultra-wideband, low profile and omnidirectional radiation.

This invention provides an edge computing-based IoT device data interaction system, relating to the field of digital information transmission technology. The invention ensures initial data security through a 5G baseband processor and encrypted digital signatures; it then initiates cross-validation of data credibility, dynamically generates sensitization coefficients based on macro-risk levels, and nonlinearly amplifies micro-anomalies. Combined with a fusion decision matrix, a comprehensive data credibility index is calculated, thereby assessing data logical consistency in real time and enhancing system robustness and data credibility. Based on a gradient control strategy and a multi-level permission partitioning model, it triggers defense action combinations and information pushes precisely matched to threat levels, realizing a shift from passive response to proactive early warning and ensuring the minimization, accuracy, and security of information distribution.

The utility model relates to a fan device and vertical face cleaning equipment. The fan device comprises a shell, a driving mechanism, an impeller assembly and a turbulent flow part. A containing cavity and a spiral air duct arranged around the periphery of the containing cavity are formed in the shell, and the spiral air duct is constructed to be communicated with the air inlet side and the air outlet side of the fan device; the driving mechanism is arranged in the accommodating cavity; the impeller assembly is in transmission connection with the driving mechanism, and the impeller assembly is driven by the driving mechanism to rotate, so that external airflow flows from the air inlet side to the air outlet side through the spiral air duct; the turbulent flow part is arranged in the spiral air channel and disturbs airflow flowing through the spiral air channel. By arranging the spiral air duct, the airflow exhaust path is greatly prolonged, and the turbulent flow part is arranged in the spiral air duct, so that airflow in the spiral air duct can be disturbed, sound wave energy is partially consumed before reaching the outlet, and the noise reduction effect can be achieved.

The application relates to a UAV pilot signal identification method, device and computer equipment. The method comprises the following steps: obtaining a training sample, constructing a pilot signal identification model, performing multi-scale feature extraction on an input time-frequency spectrum through a feature extraction unit, dividing an initial feature map into non-overlapping local frequency blocks according to continuous frequency segments, independently completing channel dimension adaptive weight distribution in the blocks, and outputting an enhanced multi-scale feature map; performing bidirectional cross-scale feature interaction and local dynamic weighted fusion through a feature fusion unit, outputting a multi-scale fusion feature map, completing boundary box regression and classification prediction through a detection output unit, and outputting an identification result; using a training sample, training the pilot signal identification model by using a loss function, inputting a to-be-identified signal time-frequency spectrum into the trained model, and obtaining a UAV pilot signal identification result. The method can balance model lightweight and identification accuracy and robustness in a complex electromagnetic environment.

This application relates to the field of automotive manufacturing process design, and discloses a method, apparatus, equipment, and storage medium for the layout design of standard parts. A local coordinate system of the mechanism is established using a coordinate system distance positioning algorithm. The mechanism layout surface of the standard part is identified based on this local coordinate system. The total weight is calculated based on the mechanism layout surface and the envelope size and material density of the standard part to match the standard part model, thus obtaining the target standard part. The initial layout position of the target standard part is calculated according to layout rules. An avoidance algorithm is used to eliminate interference areas of other standard parts, generating multiple initial layout points. The GA-PSO hybrid optimization algorithm is used to optimize these initial layout points to obtain the optimal layout point. Kalman filtering is introduced to predict and correct the layout position in real time, obtaining the target layout point. Adjustments are made to the target layout point using integer rules (e.g., whole numbers of five or ten), enabling intelligent calculation of the screw and pin layout positions.

This invention relates to a method for detecting insulator defects in transmission lines, comprising the following steps: acquiring insulator inspection images from a UAV and constructing a backbone network; introducing an adaptive sparse self-attention mechanism and a spatial perception enhancement mechanism into the backbone network, suitable for focusing and locating the insulators; introducing a dual-branch collaborative mechanism into the backbone network to fuse the local detail features of the insulators with the global semantic information of the inspection images, suitable for defect detection of the insulators. This detection method synergistically integrates a dynamic perception scale adaptive network, a precise attention spatial enhancement network, and a local-global attention fusion module to achieve insulator defect detection that balances high performance and lightweight design; it possesses comprehensive capabilities for dynamic adaptive adjustment of the receptive field, joint modeling of local-global context, and adaptive fusion of multi-scale features, enabling stable identification of minor defects such as missing or broken parts under the harsh conditions of UAV inspection images.