16results about How to "Solve detection difficulties" patented technology

The invention relates to a high-altitude camera intelligent cleaning method based on an unmanned aerial vehicle, and the method comprises the following steps: S1, setting an unmanned aerial vehicle intelligent cleaning system, S2, obtaining the omnibearing image of a to-be-cleaned high-altitude camera through a control system and a high-definition camera of the unmanned aerial vehicle, S3, introducing a multi-scale attention mechanism to improve a YOLO algorithm, carrying out the detection of smudge points of the image, and carrying out the cleaning of the smudge points of the to-be-cleaned high-altitude camera. S4, the recognized stain points are converted into three-dimensional space coordinates, the dip angle of a spray head is adjusted, and a central processing system starts a spraying system to conduct precise positioning cleaning, S5, after cleaning, the unmanned aerial vehicle is controlled to conduct all-dimensional photographing on the cleaned camera, key point detection of the stain points is conducted on the obtained picture again, and S6, if no stain point is detected, the unmanned aerial vehicle is controlled to conduct all-dimensional photographing on the camera. Controlling the unmanned aerial vehicle to return to complete cleaning; and if the smudge points are detected, all-around secondary cleaning is carried out on the smudge points until the smudge points do not exist, and cleaning is completed. The cleaning quality can be improved, the cost is saved, and the risk is reduced.

The invention relates to the technical field of automobile part detection, in particular to an automobile front leaf inner plate measurement gauge, which comprises a leaf plate detection mechanism, a front leaf inner plate detection mechanism, a front leaf inner plate detection mechanism, a front leaf inner plate detection mechanism and a rear leaf inner plate detection mechanism, the three fixing mechanisms are connected with the threaded grooves in the corresponding positions in a screwed mode and used for limiting the inner plate; the positioning detection mechanism is fixed on the workbench and is used for determining the placement position of the inner plate on the surface of the workbench and detecting the inner plate; and the position adjusting mechanism is fixed on the positioning detection mechanism and is used for controlling the lifting of the component. According to the invention, the first roller rolls on the inner plate and the pressure sensor is combined to detect the pressure value of each position of the standard component, so that the pressure data corresponding to the shape characteristics of the inner plate of the standard component can be accurately obtained, and the difference of radians, thicknesses and the like at different positions can be reflected on the pressure change. The data can be used as a high-precision reference standard for subsequent detection, and the detection precision is effectively improved.

The invention relates to the technical field of computer vision, in particular to a discrete edge feature guided remote sensing ship wake rotation detection method and device, and constructs a discrete edge feature guided rotation detection method. A feature extraction module focused on a discrete edge is constructed, and through a parallel edge branch design, the intensity change of a pixel gradient can be sensed while image space features are captured, so that richer feature representation is obtained. And through a context attention fusion module, context features are adaptively fused, and the global perception capability of the model is effectively improved. Through the diagonal constrained ProbIoU, the description capability of the rotation angle and shape is further enhanced by considering the relative diagonal distance of the minimum circumscribed horizontal rectangle, and the detection capability of the model is further improved by using the strategy, so that the model can better meet the requirements of practical application.

The present invention proposes a trace detection method for rare earth ions, a terahertz metamaterial chemical sensor and its application; based on the existing rare earth ion detection technology, which has the problems of long time consumption, expensive instruments and complex sample processing; the present invention combines terahertz metamaterials with rare earth ion imprinted nanomaterials, captures specific rare earth ions through rare earth ion imprinted nanospheres, and amplifies the terahertz signal of rare earth ions through BIC resonance, which can suppress noise interference, realize trace detection of rare earth ions at the nanomolar level and above, and significantly improve the selectivity and sensitivity of rare earth ion terahertz detection. Based on the above method, the present invention realizes the research and development of a quasi-BIC metamaterial array structure with rare earth ion imprinted nanomaterials attached, which can be applied to various terahertz detection systems to realize trace detection of rare earth ions, and has good application prospects.

The present invention discloses a rat detection method and system based on multi-frame judgment and multi-feature matching. The method includes: obtaining monitoring images of a target area of ​​several frames for target detection. If a rat is detected in a certain frame, then obtaining M consecutive monitoring images after the frame; judging whether a rat is detected in each frame of the M monitoring images, if not, then determining that there is no rat in the current target area, if yes, then proceeding to the next step; judging whether the intersection-and-union ratios of the candidate detection frames of the rat target in all two adjacent frames are greater than 0.3, if not, then determining that there is no rat in the current target area, if yes, then proceeding to the next step; judging whether the intersection-and-union ratios of the candidate detection frames of the rat target in all two adjacent frames are less than 0.95, if yes, then determining that there is a rat in the current target area. The present invention combines the dynamic information of multi-frame images with the rat feature matching technology to effectively improve the accuracy of rat detection in complex scenes, especially in the application of grayscale images at night.

The present invention relates to an ultra-sensitive terahertz biosensor based on quasi-continuum bound state, which can induce quasi-continuum bound state (Q-BIC) in the frequency domain by changing the overall configuration of the resonator and the size and relative position of its local opening in the resonator unit in the sensor, thereby introducing asymmetric perturbations, thereby achieving a Q-BIC resonance peak with a quality factor (Q value) higher than 1000 in the terahertz frequency band, and this highly sensitive resonance peak has better sensing performance for nanomolar (nmol) or even picomolar (pmol) biological sample molecules, and can generate obvious response signals in the terahertz spectrum, thereby achieving ultra-sensitive detection of trace substances, greatly improving detection efficiency and accuracy. The processing technology is more mature, the production cost is lower, and it is suitable for commercial applications; the present invention has good reusability, is compatible with various terahertz detection systems, and has the expansibility of secondary development such as surface functionalization treatment.

The invention relates to the technical field of computer vision, and discloses an object detection and reconstruction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining an image sequence of an image source, carrying out the preprocessing, and dividing a preprocessed image into image combinations; training an initial object detection model based on the sample image combination, and adding a motion state prediction branch to the initial object detection model; detecting the image combination by using a target object detection model to obtain a detection result; and screening out a target detection result consistent with the object category and the motion state of the target object from the detection results of all image combinations representing the same target time, and performing reconstruction based on the target detection result to obtain a reconstruction coordinate. By adding a motion state prediction branch, the problem of difficult detection caused by smear of a high-speed moving object can be solved, the motion / static state can be accurately distinguished, and the detection accuracy and comprehensiveness are improved. And detection results are screened through time, categories and motion states, so that the reconstruction precision and efficiency are improved.

The invention belongs to the technical field of pharmaceutical analysis, and particularly relates to a method for detecting an isavuconazole sulfate enantiomer. According to the method, the to-be-detected sample isavuconazole sulfate and the enantiomer thereof are accelerated to be hydrolyzed and converted into isavuconazole and the enantiomer thereof under the catalytic action of enzyme, and the isavuconazole and the enantiomer thereof are separated and detected through liquid chromatography, so that the content of the isavuconazole sulfate enantiomer is detected. Further, the impurity content of enantiomers in the isavuconazole sulfate raw material medicine or the preparation thereof is controlled, and the quality controllability of the isavuconazole sulfate raw material medicine and the preparation thereof is ensured. The problem that the isavuconazole sulfate enantiomer is difficult to detect in the quality control of the isavuconazole sulfate raw material medicine and the preparation thereof is solved.

The invention belongs to the technical field of gas leakage detection, and particularly relates to a gas leakage detection device and a detection method thereof. The pipeline detection problem that three-way joints, flange joints and the like are difficult to detect is effectively solved. Comprising a body unit, the body unit comprises an installation main plate, and two sides of the installation main plate are respectively provided with a supporting unit which is used for supporting the detection device and can move on a to-be-detected pipeline. A buckling unit is arranged at the bottom of the mounting main board, the buckling unit comprises an upper combination body and a lower combination body, the upper combination body and the lower combination body are both of a shell-shaped structure and are detachably connected through a connecting piece, and a sealed cavity is formed after the upper combination body and the lower combination body are buckled and connected; a hole channel for a pipeline to pass through is formed in each of the two ends of the sealed cavity; during use, a to-be-detected pipeline is clamped between the upper combination body and the lower combination body, and the two ends of the to-be-detected pipeline penetrate out of the two hole channels respectively.

The application discloses a kind of for electron irradiation accelerator beam under gas environment monitoring and processing method, it is related to electron irradiation accelerator technical field, including the following steps: ozone generated by electron beam irradiation is through shielding body upper side ventilation system first gas collection port, is transported to shielding body outer exhaust duct by exhaust duct in shielding body, most of probe is excluded from beam under high-dose irradiation environment, ensure stable operation, while ozone concentration and smoke state of the probe can be detected in beam under irradiation space.The application combines the design structure of shielding body and gas drainage method, realizes the real-time monitoring of electron beam irradiation space environment gas.According to the structural characteristics of shielding body, the ventilation and beam under environment detection system are integrated, the beam under gas environment detection problem is solved, the service life is prolonged, the irradiation accelerator operation stability is improved, the humidity is monitored by humidity sensor and the air supply amount is adjusted, the real-time monitoring is realized, and the pollution of harmful gas to irradiation space environment is reduced.

The present invention belongs to a testing method of a multifunctional ventilation valve flexible testing system, which is characterized in that the air valve to be tested is installed on the air valve connecting flange, the gas is divided into two ways to enter after passing through the compressed air inlet of the fan, and the gas regulating valve 2 is adjusted to make ELM110-OAC differential pressure sensor 1 or ELM110-OAC differential pressure sensor 2 selected according to the adjustment pressure range, and the gas regulating valve 1 is adjusted to make ELM110-OAC differential pressure sensor 1 or ELM110-OAC differential pressure sensor 2 selected according to the adjustment pressure range. After the pressure reaches the preset value, the flow value of the MF5700 thermal flow meter is recorded to obtain the air valve plate leakage or valve body leakage under the preset pressure. If the existing two sets of flow access pipelines and two flow detectors still cannot meet the flow demand, the detection port with a flow rate of more than 1000m³ / h is connected. The invention can flexibly select and test air valves of different calibers according to their performance parameters, ensure the detection accuracy and effectiveness, and solve the difficulty of large-caliber valve detection.

The present invention discloses a method for monitoring the horizontality and verticality of an FPSO main bearing, and relates to the technical field of main shaft detection. The method comprises arranging a dual-axis tilt sensor on the FPSO main bearing, wherein the dual-axis tilt sensor is fixed by a sensor fixture, wherein the sensor fixture comprises an outer bracket and an inner bracket, wherein the outer bracket is fixed on the outer edge of the FPSO main bearing, and the inner bracket is fixed on the inner edge of the FPSO main bearing, wherein the outer bracket comprises a T-shaped outer bracket body, wherein the end of the outer bracket body is provided with two symmetrical outer bracket fixing holes, and an outer bracket mounting hole is provided on one side of the end of the outer bracket body. The present invention can obtain the healthy operating status of the main bearing through the monitoring value of the dual-axis tilt sensor; the method does not affect the working status of the existing main bearing structure, and the monitoring can be realized by only fixing and installing the device outside the original bolts, and does not affect the normal operation of the main bearing.

The present invention belongs to the field of active safety of automobile automatic driving, and provides a method for automatic detection of highway height restriction facilities based on binocular vision. Aiming at the problems of false detection and low accuracy of long-distance height measurement caused by the diversity of highway height restriction scenes and the variability of driving conditions, the accuracy of height restriction target detection is improved by optimizing the distribution of each sample of a binocular height restriction data set; local operators and global operators are used at the output end to improve the estimation accuracy of the distance and height of the height restriction target, and the distance and height of the height restriction facility are output in real time. The method provides assistance to large vehicle drivers when they pass through the height restriction section through a real-time visual interface display, and effectively reduces unnecessary vehicle damage and public property loss caused by misjudgment of drivers due to lack of experience when passing through highway height restriction facilities.

The invention aims to provide a coil spring pitch detection device, which solves the problem that the natural state of the coil spring pitch is difficult to detect, and comprises a case, a driving assembly and a detection assembly, the driving assembly and the detection assembly are arranged on the case, a positioning head is used for fixing the inner end of a coil spring, and a motor outputs mechanical power through a driving rod, so that the coil spring pitch detection device can be used for detecting the coil spring pitch. The motor drives the driving rod to rotate, the rotating speed and the torque of the driving rod have rated values, when the driving rod drives the coil spring to contract, the torque of the driving rod changes, the coil spring drives the sliding plate to move, when the torque of the driving rod changes to a set range, the motor stops rotating, the sliding plate is static, and at the moment, the moving distance of the sliding plate is checked. If the distance reaches the set range, the coil spring pitch is qualified, and if the moving distance of the sliding plate is not within the set range, the coil spring pitch is unqualified, so that the problem that the natural state of the coil spring pitch is difficult to detect is solved.

The application discloses a method for semi-quantitative analysis of expression level of secreted protein of human joint cartilage cells by using immunoblotting technology. The method comprises the following steps: 1) preparing a secreted protein culture solution; 2) collecting a sample of the secreted protein culture solution; 3) performing dialysis desalting treatment on the sample; 4) concentrating the secreted protein culture solution to prepare a powder; 5) re-dissolving the secreted protein culture solution powder and quantifying the protein; 6) separating the protein components in the re-dissolved culture solution; and 7) detecting the expression level of the secreted protein in the re-dissolved culture solution sample by using immunoblotting method. The low-temperature dialysis and vacuum concentration technology can significantly improve the concentration of the secreted protein in the human joint cartilage tissue culture solution sample under the condition of maintaining the integrity of the protein structure, and is suitable for detecting the chemical fluorescence signal of the secreted protein in the sample by using the immunoblotting technology. The application provides an important cell reaction detection tool for studying the pathogenesis of bone and joint diseases caused by degenerative changes of cartilage tissue and researching and developing biological small-molecule drugs for treating the diseases.

The invention discloses a shaft current test structure and method for a double-shaft EMC (Electro Magnetic Compatibility) on-load test system, the method depends on a structure obtained by improving the double-shaft EMC on-load test system, a current probe is used for testing shaft current in a non-invasive manner, and the interference on the normal operation of the system is small; the problems that an existing shaft current testing method only focuses on shaft current testing of a motor, comprehensiveness and reliability are poor, and the requirement for shaft current testing of a double-shaft EMC on-load testing system is difficult to well meet are effectively solved. The influence of the magnitude of the shaft current on the EMC on-load test of the electric drive assembly is explored, and the correlation degree and the action mechanism between the shaft current and the electromagnetic compatibility are deeply analyzed and evaluated; in addition, shaft current testing can be carried out in no-load and loaded states, and background noise can be detected. A more comprehensive and accurate solution can be provided for the EMC loading test of the new energy automobile electric drive assembly, and the progress of the test technology in the related field can be promoted.