68results about How to "Mark accurately" patented technology

The invention provides a textile defect type identification method, and relates to the technical field of textile defect identification, and the method specifically comprises the steps: collecting original images of a plurality of textile samples, and carrying out the detailed marking; adjusting the original image to 224 * 224 pixels, constructing a CNN model, extracting feature maps of different convolutional layers, and generating a fusion feature vector in combination with the weights of the feature layers; performing pooling processing on the fused feature map to generate a single-channel space attention map, and obtaining a weighted feature map in combination with a channel attention weight; constructing a segmentation model, outputting a mask after training, and identifying a normal region and a defect region; analyzing and identifying a defect area and extracting related features through a connected component to form a feature set; and a comprehensive scoring coefficient is constructed based on the features, so that the textile defect type can be accurately identified. According to the method, the recognition capability on fine defects can be effectively enhanced, and finer deviations can be captured, so that the recognition rate is remarkably improved.

The invention relates to the technical field of water quality tracking and monitoring, and discloses a water environment water quality tracking and monitoring system and a method thereof.The water environment water quality tracking and monitoring system comprises a data acquisition unit, a preprocessing unit, a data analysis unit, a pollution analysis unit and an early warning display unit. The water environment condition can be reflected comprehensively and accurately; abnormal value judgment and replacement are performed on the water quality data of the acquisition points and the time points, so that the reliability and the stability of the data are improved; by constructing a regional water quality vector matrix and a fixed-point water quality vector matrix, indexes such as variable coefficients are calculated from space and time dimensions, and acquisition points with local pollution or abnormal fluctuation are accurately found out; according to the invention, the system determines the pollution level, displays the abnormal collection point and the pollution level to related personnel in time, facilitates the related personnel to take countermeasures rapidly, improves the efficiency and level of water environment management, and provides powerful support for the protection and treatment of the water environment.

The invention relates to the field of video inspection, in particular to an active video inspection system based on Internet of Things driving, which comprises a current analysis module, an image input module, an image input detection module, an image output detection module and an audio detection module. According to the method, the current of the conference room equipment is monitored, abnormal equipment is found in time, rapid fault diagnosis is achieved, the effectiveness of the video stream is effectively judged by obtaining and processing the video stream and analyzing the grayscale image, it is ensured that the input picture is always in an available state, the blank screen phenomenon and picture distortion are avoided, and the user experience is improved. The image output detection module verifies the display effect, ensures the accuracy of an output picture and determines an abnormal area when the output picture is abnormal, the audio detection module plays a test audio and collects feedback, the sound receiving effect of a microphone is effectively evaluated, the conference room equipment is automatically and actively inspected, the equipment state is continuously monitored and evaluated, and the sound receiving efficiency is improved. Potential faults can be found and prevented in time, and the sudden fault risk of equipment is remarkably reduced.

The invention discloses a video behavior recognition method based on a double-path mixed attention network, and the method comprises the steps: firstly, setting a low-speed path and a high-speed path respectively, adding a channel attention mechanism and a space attention mechanism into the low-speed path and the high-speed path respectively, enabling features to cover more parts of an object to be recognized, and enabling the features to be higher than the features of the object to be recognized; different connection weights can be dynamically generated by highlighting the characteristics and effects of the surrounding environment; secondly, the training data set is preprocessed, and independently placed action video frames are put into corresponding action folders; a series of experiments prove that the method can better pay attention to feature information, ignore other information and highlight the features of the person executing the action, so that the action is more accurately marked, and the accuracy of behavior recognition is improved.

The invention discloses an underwater inspection robot with an underwater net cage damage position indicating device. The indicating device mainly comprises an upper clamping jaw and a lower clamping jaw, the first locking mechanism is used for keeping the lower clamping jaw and the upper clamping jaw in an open state; the second locking mechanism is used for keeping the lower clamping jaw and the upper clamping jaw in a clamping state when the first locking mechanism is unlocked; a buoy, a connecting wire and a wire coil; the third locking mechanism is used for fixing the wire coil relative to the mounting seat when the first locking mechanism enables the lower clamping jaw and the upper clamping jaw to be kept in an open state; during use, when the underwater inspection robot finds a damaged part of the underwater net cage, the first locking mechanism is unlocked, the second locking mechanism enables the lower clamping jaw and the upper clamping jaw to keep a clamping state, the third locking mechanism is unlocked, the connecting wire is released from the wire coil under the buoyancy action of the buoy, and finally the buoy emerges from the water surface. The damage position can be accurately marked, and manual repair can be conveniently guided in time.

The present invention relates to the technical field of sleep diagnosis, and in particular to a sleep staging method based on deep learning, the method comprising: collecting a number of target physiological signals, preprocessing each target physiological signal to obtain a number of standard physiological signals; synchronously aligning and integrating each standard physiological signal in turn to obtain a standard sleep data set; determining the actual correlation between each physiological signal to be integrated in the standard sleep data set, and determining an actual signal combination strategy according to the actual correlation; generating an actual sleep data set according to the actual signal combination strategy, and extracting features from the actual sleep data set to generate actual feature parameters; inputting the actual feature parameters into a deep learning model to determine the actual sleep state; analyzing the actual sleep state, and performing corresponding sleep intervention according to the analysis results. The present invention realizes low-cost non-intrusive sleep monitoring, thereby improving people's physical health.

The invention relates to a PCB screen printing automatic adjusting method and system, electronic equipment and a medium, and the method comprises the steps: obtaining a to-be-processed PCB file which comprises each component and a screen printing bit number corresponding to each component; for each component, marking the screen printing bit number corresponding to the component to the coordinate of the central position of the component; for each component, identifying a first area corresponding to the silk-screen bit number corresponding to the component and a second area corresponding to the component; and identifying a target area matched with the first area in an area outside a second area corresponding to the component, and adjusting the silk-screen bit number corresponding to the component from the first area to the target area. By means of the method, marking of the silk-screen bit number of each component is automatically achieved, manual intervention is reduced, and the correctness of the silk-screen bit numbers is ensured.

The invention discloses a housing construction project hollowing detection device which comprises a shell, a mounting cavity is formed in the shell, a transmission shaft is rotatably mounted in the mounting cavity, a mounting plate is fixedly mounted on the lower surface of the mounting cavity, an eccentric pressing block is fixedly mounted on the surface of the transmission shaft, and a pressing column is slidably mounted in the mounting plate. Knocking heads are slidably mounted at the bottom of the pressing column, a sound sensor module fixedly mounted on the mounting plate is arranged on one side of each knocking head, a rotating shaft is rotatably mounted in the mounting cavity, a cleaning roller is fixedly mounted on the surface of the rotating shaft, and one end of the rotating shaft is in transmission connection with the transmission shaft through a transmission assembly. When knocking sound is detected through the sound sensor module and hollowing sound is detected, the control device controls the corresponding electromagnetic pump to work and marks the hollowing position, the hollowing position can be accurately marked and detected, meanwhile, the cleaning roller is driven to rotate, dust on the detection face is swept forwards, and the detection effect is improved.

The invention relates to the technical field of pavement flatness detection, and discloses a flatness measuring device for highway asphalt pavement maintenance, which comprises a frame body, the angle deviation assembly is used for displaying the gradient of the road surface; the measuring assembly is used for carrying out depression measurement and marking on the road surface; the measuring assembly comprises a measuring marking assembly and an inclined marking assembly. According to the flatness measuring device for road asphalt pavement maintenance, through the arranged measuring assembly, double measurement of the depression and the gradient of a road asphalt pavement can be achieved, the depression and the gradient of the road asphalt pavement can be automatically marked, and then the pavement is maintained according to the marked position, so that the overall pavement measuring efficiency is improved; a road section diagram does not need to be made, observation by naked eyes is not needed, mobile detection of equipment is directly utilized, marking is carried out, measurement of measurement personnel is facilitated, and observation and maintenance of subsequent maintenance personnel are also facilitated.

The invention provides a vehicle tire burst remote monitoring method and device, a vehicle-mounted terminal and a vehicle, and the method comprises the steps: extracting vehicle speed and tire pressure values through unit time intervals in a preset time period, forming an initial vehicle parameter sequence, and capturing the dynamic change in the vehicle driving process; rich data basis is provided for subsequent time sequence analysis, time sequence analysis is carried out based on the data, the risk moment can be marked more accurately, and therefore the accuracy of tire burst prediction is improved, the tire burst risk possibly existing in the vehicle driving process can be found in time by marking the risk moment and obtaining the vehicle state data, and the tire burst prediction accuracy is improved. According to the method, a driver can conveniently take prevention measures before risks occur, accidents are avoided, the tire burst influence factors are set in the vehicle state data, the tire burst probability is output based on the factors in a fitting mode, various factors possibly influencing tire burst can be comprehensively considered, the tire burst prediction accuracy is improved, and more comprehensive tire burst risk assessment is obtained.

The utility model is suitable for the technical field of laser marking, and provides a laser marking multi-axis positioning device which comprises a supporting table, a marking body and an adjusting mechanism. The adjusting mechanism comprises a screw rod sliding table which slides above the supporting table; the first connecting plate is arranged at the moving end of the screw rod sliding table; the second connecting plate is rotationally arranged on the outer side of the first connecting plate; the operating table is rotationally arranged above the second connecting plate; the clamping piece is arranged above the operation table; the multi-dimensional positioning and adjusting device has the multi-dimensional positioning and adjusting functions including high-precision adjustment in the longitudinal direction, the transverse direction, the vertical direction and the horizontal plane, meanwhile, the clamping pieces are flexible in design and suitable for workpieces of various shapes and sizes, the application range is widened, the clamping uniformity and stability are enhanced by adding the rubber pads, the workpieces are prevented from sliding, and the machining precision is improved. The adaptability and the stability of the device are further improved, the application range and the adaptability of the device are expanded, and more flexible and diversified marking requirements are met.

The present invention relates to the field of microcrystalline glass detection technology, and specifically to a microcrystalline glass surface uniformity detection system. Among them, the control core can slide relative to the control cylinder. When the connecting hole connects the first matching groove and the second matching groove, the end of the control column away from the connecting tube abuts against the cushion block. When the first matching groove and the second matching groove are disconnected, the end of the control column away from the connecting tube abuts against the bottom of the groove. Before detection, adjust the distance between the positioning arm and the microcrystalline glass to be tested so that the contact end abuts against the surface of the microcrystalline glass to be tested, and enable the connecting hole to connect the first matching groove and the second matching groove. After the detection starts, keep the distance between the positioning arm and the microcrystalline glass to be tested unchanged, so that the contact end moves along the surface of the microcrystalline glass to be tested, and the ink outlet tube leaves an indicator line on the surface of the microcrystalline glass to be tested. The position where the indicator line is interrupted is the defect position. It can accurately detect microcrystalline glass and accurately mark the defect position.

The invention relates to the field of road maintenance and traffic safety, and relates to a road maintenance operation area safety management and control system, which comprises a cloud platform, an intelligent road cone, a flash warning device, maintenance personnel wearable equipment, a construction warning sign state detector, a construction area vehicle intrusion alarm instrument and a satellite base station, the server is used for performing real-time communication with an intelligent road cone, a flash warning device, maintenance personnel wearing equipment, a construction warning sign state detector, a construction area vehicle intrusion alarm instrument, a satellite base station and a vehicle navigation terminal through 5G wireless transmission equipment, processing and analyzing various data and issuing safety early warning information; a positioning module, a monitoring module, a warning module, a power module and a control module are arranged in the intelligent road cone, and the intelligent road cone is used for defining a maintenance operation area; and the satellite base station is deployed at a construction site commanding height, provides centimeter-level positioning reference and synchronously corrects coordinates of each device. The problem that the risk of accidents is remarkably increased is solved.

The utility model belongs to a gauge for marking bad positions on the back of a wafer, which relates to the field of semiconductor integrated circuit manufacture and comprises an upper handle, a lower handle and a connecting ring, the upper handle and the lower handle are symmetrically provided with an upper handle gauge angle and a lower handle gauge angle, the length of the gauge angles is 3 / 4 of the diameter of a silicon wafer, and the upper handle gauge angle and the lower handle gauge angle are symmetrical in size. The front end of the upper handle compass angle and the front end of the lower handle compass angle are triangular, a marking head used for marking is arranged in the upper handle compass angle, an upper handle sleeve is arranged below the upper handle, and when the silicon wafer back metal defect area clamping device is used, the pressing cap is manually controlled, the upper handle sleeve of the upper handle is moved, the marking head is exposed, and a silicon wafer back metal defect area is horizontally clamped. And marking is correspondingly completed on the front surface of the silicon wafer, so that the positions of the bad core particles can be accurately marked, and the problems of inaccurate marking of the bad core particles, influence on production efficiency in the marking process and resource waste in the prior art are solved.

The invention discloses a virtual chess piece marking method and device, equipment, a medium and a program product, and belongs to the field of human-computer interaction. The method comprises the steps that in response to a selection operation on a chess piece type icon, at least two virtual chess pieces corresponding to the chess piece type icon are displayed, and the at least two virtual chess pieces comprise a first virtual chess piece; in response to a selection operation on the first virtual chess piece, at least one to-be-selected mark control is displayed, the at least one mark control is used for indicating a mark range for the first virtual chess piece, and the at least one mark control comprises a first mark control; and in response to a selection operation on the first marking control, marking the first virtual chess piece in a first marking range corresponding to the first marking control. According to the method, the specific first virtual chess piece and the specific first marking range are selected, so that the first virtual chess piece required by the user can be marked more accurately and quickly, and the man-machine interaction efficiency is improved.

The present application relates to the technical field of lung image marking auxiliary reading, in particular to an auxiliary reading system suitable for lung cryptococcosis patients. The present application firstly acquires continuous CT slice images of the lung, and extracts the foreground connected domain of the lung parenchyma region as the connected domain to be analyzed; further, according to the monotonicity of the width change of the target connected domain, the blood vessel possibility of the target connected domain is acquired; further, according to the monotonicity of the area change of the connected domain to be analyzed at the same position, the possibility of the target connected domain penetrating through the blood vessel is acquired; the degree of the target connected domain being similar to a circle is acquired; finally, according to the degree of being similar to a circle, the blood vessel possibility and the possibility of penetrating through the blood vessel are fused, and the target connected domain is marked. The present application measures the possibility of the target connected domain belonging to the blood vessel from the width change and the area change, and fuses the blood vessel possibility and the possibility of penetrating through the blood vessel by means of the degree of being similar to a circle, so as to accurately mark the connected domain and assist the relevant personnel in reading.

The invention discloses an opposite clamping type laser marking machine, and relates to the technical field of laser marking. The laser marking device comprises a machining base, a laser marking mechanism and a control table are arranged on the upper side of the machining base, a machining table is arranged on the upper side of the machining base, and a moving mechanism connected with the machining table is arranged in the machining base; an adjusting seat and a fixing seat are arranged on the upper side of the machining table, a moving assembly connected with the adjusting seat is arranged on the upper side of the machining table, and two first rope wheels are arranged in the adjusting seat in a rotating fit mode. Through the arranged connecting rope, the first rope wheel and the fixing cone and the fixing head at one end of the first rope wheel can be driven to rotate synchronously under the cooperation of the first rope wheel and the second rope wheel, and displacement errors caused by movement vacancy in transmission modes of gears and the like in the prior art can be reduced under the driving of the connecting rope; therefore, the pipe can be marked more accurately, and the problem that the pipe is damaged during marking is avoided.

The present invention discloses a closed airflow detection device based on increased internal pressure, which is applied in the technical field of closed airflow detection. The present invention can place a gas tank in a water tank filled with water by arranging a water tank, a cover plate, a sonic wave transmitter, a central controller, a simulation display, a detection structure and a driving wheel. When a leakage point appears in the gas tank, bubbles will appear at the leakage point and move to the water surface. At this time, the sonic wave transmitter transmits the bubble signal to the central controller and simulates the movement path of the bubble, so as to control the driving wheel and the detection structure to mark the leakage point of the gas tank, so that the gas tank can be comprehensively detected and the leakage defect position can be accurately marked, instead of the manual observation method.

The invention discloses reinforcing steel bar scanning equipment for construction engineering detection, and relates to the technical field of reinforcing steel bar scanning equipment.The reinforcing steel bar scanning equipment comprises a detection frame, a displayer is installed in the middle of the detection frame, grips are fixedly connected to the two sides, close to the displayer, of the detection frame, and a reinforcing steel bar detection head is arranged on the side, away from the grips, of the detection frame. Continuous scanning can be carried out under automatic control in the detection frame through the measuring sliding plate, an operator does not need to frequently move a scanner, the detection efficiency is remarkably improved, especially in a large-scale structure or long-distance detection task, the automatic scanning mode can greatly shorten the detection time, and the detection efficiency is improved. Compared with the prior art, the detection device capable of sliding on the detection frame in a reciprocating mode can conduct scanning according to preset parameters and paths, it is ensured that data detected each time have high consistency, subsequent data analysis and processing are facilitated, and the detection efficiency is improved. And errors and misunderstanding caused by data inconsistency are reduced.

The utility model discloses a gear marking device which comprises a U-shaped mounting plate, a transverse plate is arranged at the upper end of the U-shaped mounting plate, a sliding rail is arranged on the transverse plate, the transverse plate is connected with a sliding seat through the sliding rail, a first driving motor is arranged on one side of the U-shaped mounting plate, a driving shaft is connected with a first lead screw, and the other end of the first lead screw is connected with a bearing seat arranged on the other side of the U-shaped mounting plate. The sliding seat is provided with a first connecting block in threaded fit with the first lead screw, the front end face of the sliding seat is slidably connected with a mounting seat, the upper end face of the sliding seat is provided with a second driving motor, a driving shaft is connected with a second lead screw, and the other end of the second lead screw is connected with a bearing seat arranged on the lower end face of the sliding seat. A second connecting block matched with the second lead screw in a threaded mode is arranged on the rear end face of the mounting base, and the lower end of the U-shaped mounting plate is slidably connected with a fixing assembly used for containing a gear. The gear fixing device has the advantages that the gear can be fixed through the key groove in the center of the gear, operation is simple when the gear is replaced, operation time is short, and working efficiency is improved.

The present invention relates to a gas cylinder detection system, detection device and detection method, wherein the gas cylinder detection device includes a defect detection component, a drive mechanism and a control element. The defect detection component includes a first detection head for identifying defects; the drive mechanism is used to drive the first detection head to move along a preset trajectory; the control element is electrically connected to the drive mechanism and the first detection head; when the first detection head moves to a first preset position, the control element starts to record the coordinate points of the first detection head relative to the first preset position until the first detection head moves to a position perpendicular to the defect. The control element can record the coordinate points of the first detection head relative to the first preset position during the movement of the first detection head, so that the position of the defect relative to the first preset position can be accurately marked, providing accurate data support for the inspection and assessment of gas cylinders and subsequent repairs.

The invention relates to the technical field of curtain wall construction, and discloses a curtain wall embedded part auxiliary positioning device which comprises an embedded part body and a positioning base, a mounting seat is arranged above the positioning base, a clamping seat is arranged on the surface of the mounting seat, a clamping jaw is arranged on the surface of the clamping seat, a clamping cavity is reserved between the clamping seat and the clamping jaw, and the clamping jaw is arranged in the clamping cavity. And the embedded part body is clamped in the clamping cavity. According to the device, the expansion bolts penetrate into the positioning holes in advance to fix the positioning base to the horizontal ground, then the embedded part body is clamped in the clamping cavity, auxiliary positioning is conducted on the embedded part body, after positioning, the position adjusting assembly is arranged, the vertical screw is rotated to drive the lifting block to ascend and descend, and then the embedded part body is clamped in the clamping cavity. According to the embedded part, the height of the embedded part body can be adjusted, the telescopic arm can be driven to slide in the telescopic sliding rail by rotating the longitudinal screw rod, then the embedded depth of the embedded part body can be adjusted, and the adjustability of positioning and mounting of the embedded part body is improved.

The present invention discloses a device and method for quickly positioning invisible installation points inside an interior trim panel. The device includes a magnet positioning quick-insert sleeve, a positioning box, a ball, a movable bottom liner and a marking layer, wherein the magnet positioning quick-insert sleeve is arranged on a reserved interface of a bracket, and an axially magnetized magnet is arranged inside the sleeve; an iron cutting encapsulation soft board is arranged at the bottom of the positioning box, and the soft board is made of a flexible transparent material, and a cavity is arranged inside the soft board to encapsulate the iron cutting; the marking layer is arranged at the bottom of the iron cutting encapsulation soft board, and is used to mark the positioning; the movable bottom liner is arranged on the positioning box, and separates the marking layer from the interior trim panel. The movable bottom liner is moved flat against the interior trim panel, and the area where the magnet is located is preliminarily determined by the disturbance accumulation of the iron cutting, and the ball is placed in the area where the iron cutting disturbance accumulates. When the ball stops sliding, the center point of the pre-opening of the interior trim panel can be accurately located, and the ball is pressed to compress the iron cutting encapsulation soft board downward to deform, so that the marking layer contacts the interior trim panel and marks the punching position with paint.

The utility model relates to the technical field of laser marking machines, in particular to a laser marking machine for advertising sign production, which comprises a table top, a rack is fixedly mounted on the rear side of the table top, a Z-direction lead screw linear guide rail is mounted on the left side wall of the rack, a Z-direction sliding seat is mounted on the Z-direction lead screw linear guide rail in a sliding manner, and a Z-direction guide rail is mounted on the Z-direction sliding seat. A Z-direction sliding seat is installed on the base and driven by a Z-direction driving motor, an X-direction lead screw linear guide rail which is horizontally placed is fixedly installed on the Z-direction sliding seat, an X-direction sliding seat is installed on the X-direction lead screw linear guide rail in a sliding mode, the X-direction sliding seat is driven by an X-direction driving motor, and a laser marking device is fixedly installed on the X-direction sliding seat. While it is ensured that the device is simple in structure and small in size, efficient and accurate marking of large advertising signs is achieved.

The invention discloses an on-line temperature monitoring system for a heated body of a heat treatment furnace, which belongs to the technical field of heat treatment furnaces and specifically comprises an infrared imaging module for generating a thermal image of a temperature field in the heat treatment furnace based on an infrared temperature measurement technology; the steel pipe identification module is used for preprocessing the thermal imaging image, performing edge detection on the preprocessed thermal imaging image, identifying a boundary line between each steel pipe area and the surrounding area, and obtaining the steel pipe area in the thermal imaging image; the temperature analysis module is used for obtaining temperature data of the steel pipe area, the temperature data comprise the average temperature, the highest point temperature and the lowest point temperature, and whether steel pipe heat treatment runs normally or not is judged according to the temperature data; and the period adjustment module is used for setting a monitoring period and a standard duration, counting the temperature data every n monitoring periods, calculating a period adjustment coefficient according to the temperature data, and calculating the duration of the next n monitoring periods according to the period adjustment coefficient.

The utility model relates to a folding ruler which comprises a plurality of straight ruler sections, a rotary connecting assembly is connected between every two adjacent straight ruler sections, every two adjacent straight ruler sections can rotate to any angle of 0 degree, 90 degrees and 180 degrees through the rotary connecting assemblies, and each rotary connecting assembly comprises a first rotary connecting piece, a second rotary connecting piece and a rotary shaft. The first rotary connecting piece is arranged at the end of one of the two adjacent ruler sections, the second rotary connecting piece is arranged at the end of the other one of the two adjacent ruler sections, and the first rotary connecting piece and the second rotary connecting piece are each provided with a through hole allowing a rotating shaft to penetrate through. The first rotary connecting piece and the second rotary connecting piece are attached to each other and are rotatably connected through a rotating shaft penetrating through the penetrating hole. The folding ruler disclosed by the utility model can rotate to any angle of 90 degrees and 180 degrees, can be used for measuring and marking objects at various angles, can also be used for drawing straight lines at various angles, and is very convenient to use.

The invention provides an astigmatism axial position marker and a marking method, and relates to the technical field of medical instruments. The astigmatism axial position marker comprises a base, a control panel, a base and a display panel, the control panel is arranged in the front of the center of the upper end face of the base, the base is arranged in the rear of the center of the upper end face of the base, the display panel is arranged in the center of the front end face of the base, and a body is arranged on the upper end face of the base. A storage groove is formed in the upper center of the rear end face of the body. Facial feature points are extracted through image processing, the distance between the two eyes of a patient is calculated, the positions of the two flexible eyeshades are adjusted through the adjusting structure, the flexible eyeshades are made to be rapidly matched with the distance between the two eyes of the patient, and therefore it is ensured that the two monitoring marking structures can accurately detect and mark the cornea or a target area, and the detection accuracy is improved. Marking content can comprise specific reference marks (such as 0 degree, 180 degrees and 270 degrees) of corneal limbus or the axial position of an intraocular lens to be implanted and the like.

The utility model relates to the field of bottom plate tools, in particular to a movable bottom plate tool of a laser marking machine. The technical problems that in the using process of an existing movable bottom plate, the height of the movable bottom plate is usually adjusted by loosening and tightening a lifting rod and a fastening nut, the adjusting mode is tedious, and operators need to spend much time and energy for adjustment are solved. According to the technical scheme, the movable bottom plate tool of the laser marking machine comprises a bottom plate assembly, a movable assembly and a lifting assembly; through the combination of the bolt seat and the fixed bolt, when the movable plate body is adjusted to a proper height, a worker can insert one end of the fixed bolt into the transmission tooth groove through the bolt hole so as to fix the height of the movable plate body, and through the combination of the positioning groove and the positioning hole, the height of the movable plate body is adjusted. The positioning groove is arranged, so that a marking workpiece can be placed in the positioning groove by a worker during marking, the position of the workpiece is determined through the positioning hole, and the marking is more accurate.

The invention relates to the technical field of image recognition, in particular to a crop disease detection method based on an unmanned aerial vehicle and application, and the method comprises the steps: obtaining a multispectral image of a crop, carrying out the preprocessing of image annotation, zooming and normalization on the multispectral image, obtaining a training set, carrying out the image annotation of the training set, and obtaining a target image; obtaining a test set containing the multispectral image and the corresponding scab marks; constructing a crop disease detection model according to the DDT model and the Xception structure; inputting the training set into a crop disease detection model to obtain a prediction result; evaluating the trained crop disease detection model according to a preset performance index, and checking prediction conditions of the crop disease detection model in different categories through the confusion matrix; adjusting and optimizing the crop disease detection model by using an Adam optimizer according to an evaluation result; and detecting crop diseases by using the optimized crop disease detection model. Compared with an existing method, the method has the advantages that the processing speed is higher, the resource requirement is lower, and the method has popularization and practical significance.

The utility model relates to an unmanned aerial vehicle pipeline inspection device which comprises an unmanned aerial vehicle body, a mounting rack, a marking assembly, a gas detection module, a clamping assembly and a controller, the mounting rack is mounted on the side, close to the ground, of the unmanned aerial vehicle body, the marking assembly, the gas detection module and the controller are mounted in the mounting rack, and a supporting plate is mounted on the mounting rack; the clamping assembly is installed on the supporting plate and clamps the pipeline, and the controller is electrically connected with the marking assembly, the gas detection module and the clamping assembly. Compared with the prior art, the pipeline marking device has the advantages that the pipeline is inspected through the gas detection module, the defective pipeline is marked through the marking assembly after being clamped by the clamping assembly, and accurate marking of the defective pipeline is achieved; the marking liquid is sprayed to the surface of the gas pipeline through the atomizing nozzle after being pressurized, so that the problem that the marking liquid easily falls to the ground in a dripping mode is avoided; and the buffer springs form buffering between the clamping blocks and the connecting plates, so that excessive extrusion on the pipeline is avoided, and the like.