54results about How to "Avoid Manual Measurements" patented technology

The invention relates to a rock fragment size classification method based on multiple features and segmentation recorrection. The method comprises the following steps that (1) an original rock fragment size image is cut and blocked to generate subblock images of 64*43; (2) color feature extraction is carried out on the subblock images; (3) texture feature extraction is carried out on the subblock images; (4) feature selection is carried out on color features and texture features; (5) a classifier is designed through a support vector machine (SVM), and rough classification on the subblock images is completed; (6) watershed segmentation is carried out on the original rock fragment size image, and each obtained rock area is marked as blob; (7) on the basis of segmentation, a result obtained through rough classification is corrected and adjusted to improve classification performance and obtain a final classification result. According to the classification method, different classification algorithms are synthesized, efficiency and accuracy are high, cost is low, and the real-time performance requirement of a mining field is met.

The invention discloses a method and device for measuring the weight of livestock, and the method comprises the steps: obtaining image data, wherein the image data is captured through the photographing of the livestock at different angles; carrying out the segmentation of the image data of the livestock to obtain segmented images; calculating the projection areas of the livestock at different photographing angles according to the pixels, representing the livestock, in the segmented images; and inputting the projection areas of the livestock at different photographing angles into a weight measurement function for measuring the weight of the livestock. The method and device provided by the invention solve a problem that the measurement efficiency and accuracy of the weight of the livestock are not high.

The invention discloses a house type chart generation method, device and equipment based on image detection and a storage medium. The method comprises the steps: when detecting that a terminal interface receives a first measurement instruction, starting a shooting device to obtain a reference horizontal plane in a room corresponding to the first measurement instruction, and establishing a space coordinate system according to the reference horizontal plane; collecting boundary distance of all boundaries in the room, and according to coordinate values in the space coordinate system, generating an entity space size of the room based on the boundary distance in the space coordinate system; and when a second measurement instruction is received, obtaining a measurement size corresponding to thesecond measurement instruction, adding the measurement size to the entity space size, generating a house type chart of the room, and outputting the house type chart. According to the scheme, the housetype chart of the room is established based on the image detection technology, so that the operation process of room measurement is simplified, and the house type chart generation efficiency based onimage detection is improved.

The invention discloses a fixed-length measuring device for saw cutting of sectional bars. The fixed-length measuring device comprises a mounting plate, a moving unit, a first fixed unit, a cutting unit, a second fixed unit, and a transfer unit, wherein two corresponding connecting plates are arranged on the upper side surface of the mounting plate; a mounting box is fixed to the right side surface of the mounting plate; an opening is formed in the upper side surface of the mounting box; the moving unit comprises a first motor, a sliding block, a threaded rod, and a limit rod; the first motoris arranged on the right side surface of the mounting box; the sliding block is connected to the interior of the mounting box in a sliding manner; a threaded hole is formed in the middle of the sliding block; the interior of the threaded hole is in threaded connection with the threaded rod; and the right end surface of the threaded rod is connected to an output shaft of the first motor. The fixed-length measuring device can effectively avoid the disadvantages of manual measurement, can perform the large-batch fixed-length cutting, and greatly improves the efficiency of fixed-length cutting.

The invention discloses a cylinder special-shaped buckling detection device and a recognition method. The device comprises a camera, a laser range finder, a level instrument and a tripod. Monocular vision and laser are combined for detecting the maximum diameter of the special-shaped buckling appearing after a concrete filled steel tubular column is detected to be subjected to low cyclic loading. Measurement requirements can be met, the maneuverability, the flexibility and the measurement accuracy of the measurement device can be improved, the phenomenon that the measurement efficiency and the measurement precision are reduced as the camera and the laser range finder mutually separated are used frequently in turn can be avoided; Hough transform based on secondary gray value processing is used, a circle tangent to points at two ends of the maximum diameter of the buckling is found and calculated, secondary gray value threshold processing is carried out, remaining noise points are reduced, and the accurate maximum buckling position at a sample and the maximum diameter of the special-shaped buckling can be acquired.

The invention discloses a dimension measuring device. The dimension measuring device comprises a driving motor; a transmission mechanism which is connected with an output shaft of the driving motor and outputs linear motion; a first sensor which is arranged at the output end of the transmission mechanism and used for sequentially detecting a first boundary position and a second boundary position of a to-be-detected part of the workpiece in the moving process; a processor which is connected with the first sensor and is used for determining a first corner position of the driving motor when a signal of a first boundary position detected by the first sensor is acquired, determining a second corner position of the driving motor when a signal that the first sensor detects the second boundary position is obtained, and calculating the distance between the first boundary position and the second boundary position according to an angle difference value between the first corner position and the second corner position. The product dimension can be automatically detected, and the measurement accuracy is high. The invention further discloses a dimension measuring method applied to the dimension measuring device and a dimension measuring system comprising the dimension measuring device.

The invention is suitable for the technical field of machining and provides a tubular product cutting and transferring device. The tubular product cutting and transferring device comprises a worktable, supporting transfer rollers, pushing transfer rollers, double spiral chute rods, a sawing plate, and a rotary driving part, wherein the supporting transfer rollers are rotatably arranged at two endsof the worktable in a transfer direction of a tubular product for supporting and transferring the tubular product; the pushing transfer rollers are liftably and rotatably connected to two ends of theworktable and are matched with the supporting transfer rollers to clamp and transfer the tubular product; the two double spiral chute rods are rotatably connected to the middle of the worktable and sliding blocks are embedded onto the double spiral chute rods in a fit manner; the sawing plate is rotatably connected to the sliding block and is coaxially and fixedly connected to a connecting gear;the rotary driving part is mounted on the worktable, and an output shaft of the rotary driving part is coaxially connected to a driving one-way belt wheel and a driven gear; the supporting transfer rollers are coaxially and fixedly connected to a driven belt wheel, the double spiral chute rods are coaxially and fixedly connected to a one-way gear, and an insection rack is engaged with the connecting gear. The tubular product cutting and transferring device has the advantages of simple structure, convenience in operation, low production cost, good synchronism and high cutting efficiency.

The invention belongs to the technical field of door equipment and relates to a door capable of measuring body temperature. The door comprises a door frame, wherein the door frame comprises a door frame body, the bottom of the door frame body is fixedly connected with a surface of the ground, a sliding groove is formed on a surface of the ground in the door frame body, a measurement triggering device is arranged in the sliding groove, the measurement triggering device comprises a contact block, and the bottom of the contact block is fixedly connected with an inner bottom wall of the sliding groove. The door capable of measuring body temperature is advantaged in that a measurement adjusting device is arranged at one end of the door frame body, the measurement adjusting device comprises a motor mounting plate, and a surface of the motor mounting plate is fixedly connected with the top of the door frame body, so the effect of automatically adjusting the proper position to measure the bodytemperature according to different heights of people is achieved, existing manual measurement is avoided, labor cost is reduced, and measuring efficiency is improved.

The invention relates to a difficult airway evaluation method and device based on a machine learning voice technology. The method comprises the following steps: acquiring voice data of a patient; performing feature extraction on the voice data to obtain acoustic features, voiceprint features and voice recognition features; and constructing a difficult airway evaluation classifier based on a machine learning voice technology, analyzing the extracted acoustic features, voiceprint features and voice recognition features through the trained difficult airway classifier, and scoring the severity of the difficult airway to obtain an evaluation result of the difficult airway. According to the method, early warning can be accurately carried out on difficult airways in clinical anesthesia.

The invention discloses an antenna downtilt angle automatic adjustment method and system based on unmanned aerial vehicle vision measurement. The method comprises: an unmanned aerial vehicle shooting an antenna real-time image and sending the image to an upper computer, then the upper computer processing the antenna real-time image through a trained instance segmentation network model to obtain an antenna mask, and the upper computer calculating by using a least square method according to the antenna mask to obtain a real-time antenna downtilt angle and further obtain an adjustment signal; and finally, sending an adjustment signal to the antenna to automatically adjust the downtilt angle of the antenna. Through the cooperation of the antenna, the unmanned aerial vehicle and the upper computer, the downtilt angle of the antenna is automatically shot, calculated and adjusted, and the method has the characteristics of high automation and intelligence, and is convenient and fast. Manual tower climbing is not needed in the whole process, potential safety hazards caused by tower climbing are avoided, and time and labor are saved.

The invention discloses an indoor SLAM mapping method based on a 3D laser radar and UWB, and the method comprises the steps: deploying a UWB positioning system in an indoor scene, exploring the region of the indoor scene through a robot carrying a 3D laser radar sensor, and generating a map of the explored region through an SLAM algorithm fusing laser radar data and UWB data. The method specifically comprises the following steps: S1, determining relative pose transformation between a 3D laser SLAM coordinate system and a UWB positioning coordinate system; S2, providing an initial value for inter-frame matching of the laser speedometer by using UWB data; S3, using UWB data to add constraints to the SLAM rear-end pose map; and S4, performing loopback detection based on curvature feature coding. According to the method, the illumination condition limitation of an indoor scene is broken through, and the accumulated error of SLAM is eliminated, so that a high-quality indoor map is constructed.

The invention relates to a target coordinate measurement method and system based on a linkage deflection type active visual system, and the target coordinate measurement method comprises the steps of: enabling a checkerboard to be vertically disposed in an image collection range of a visual system, and enabling the surface of the checkerboard to be perpendicular to the z-axis of a visual coordinate system of the visual system when the deflection angle of a camera is 0; collecting images of the checkerboard through a first camera and a second camera respectively to obtain a first image and a second image; acquiring calibration parameters based on internal parameters of the cameras according to the first image and the second image; and determining the three-dimensional coordinates of each angular point in the checkerboard according to the calibration parameters. According to the invention, the checkerboard is vertically arranged in the image collection range of the visual system, and the three-dimensional coordinate of any point in a public field of view of the visual system can be quickly and accurately determined through the calibration parameters of the visual system based on the internal parameters of the first camera and the second camera of the visual system and according to the acquired first image and second image.

The invention discloses a rapid manufacturing method and a manufacturing assisting system of a composite structural slab. By the aid of the manufacturing assisting system, a structural slab model image is projected to the surface of a lower skin object by a projector through acquisition of a lower skin object image of the structural slab, acquisition of the structural slab model image and image matching and transformation, and then, an object embedded part, a honeycomb core and an upper skin of the structural slab are sequentially assembled. With the adoption of the rapid manufacturing methodand the manufacturing assisting system, acquisition of assembly information by workers on site can be simplified, and the production efficiency, accuracy and one-time success rate are greatly improved.

The invention relates to the technical field of generator monitoring, in particular to a gas generator set rotor shaft voltage on-line monitoring device which comprises two monitoring device bodies and a set control cabinet, wherein each monitoring device body comprises a conductive carbon brush and an electric brush support, the conductive carbon brushes are tightly attached to a rotor shaft, the electric brush support is provided with a brush holder, the conductive carbon brush is fixed on the electric brush support through the brush holder, the electric brush support is provided with a metal end part, one end of the metal end part is connected with the conductive carbon brush through a lead, and the other end of the metal end part is connected with a high internal resistance voltmeter in the unit control cabinet through a cable. The generator excitation end large shaft leads out the shaft voltage through the conductive carbon brush device, the shaft voltage is connected into the set control cabinet, in the working process of the generator, the numerical value of the shaft voltage can be monitored in real time, the damage risk of main equipment of the generator is reduced, and meanwhile the safety risk caused by manual measurement is avoided.

The invention provides a wheelchair stability detection device and method, belonging to the technical field of wheelchair balance detection. The beneficial effects of the present invention are: the present invention can make the distance between each wheel of the wheelchair be calculated by the known data measured by the existing balance panel, avoiding manpower measurement, fast and accurate; making the load center point of the wheelchair and The center of gravity of the wheelchair does not require a cumbersome and complicated detection process, and can scientifically and reasonably measure the changes in the stability of the wheelchair, providing an intuitive and effective basis for the formulation of a plan to improve the stability of the wheelchair; it is convenient for the production and use of wheelchairs. The evaluation has greatly guaranteed the personal safety of the wheelchair user; in addition, the sensor layout is reasonable and the structure is exquisite, and it is not disturbed by the lateral force when testing the stability of the wheelchair, and the measurement results are accurate, which can scientifically and reasonably detect the stability of the wheelchair vehicle .

The invention discloses an automatic fool-proof laser engraving operation device. The device comprises a laser engraving machine, a laser engraving jig, a controller and an induction needle, the laser engraving jig can be fixedly installed on a workbench of the laser engraving machine, a positioning groove matched with a workpiece to be machined in shape is formed in the laser engraving jig, and the induction needle is fixedly installed on the bottom face of the positioning groove. At least one induction point is arranged on the induction needle, each induction point can detect the distance between the induction point and a product positioned in the positioning groove, the induction needle is electrically connected and communicated with the controller, and the controller controls the laser engraving machine to be started and stopped, so that manual measurement before laser engraving machining is avoided, inspection and operation are combined into one procedure, the machining efficiency is improved. Misjudgment is avoided, the detection and processing accuracy is improved, and the labor cost is saved.

The invention relates to an anti-interference electricity system of a self-matching alternating current contactor, and belongs to the technical field of power electronics. The system comprises a central control unit, a voltage isolation conversion measurement unit, an AC-to-DC power supply unit, a half-bridge AC-to-DC conversion unit, a super capacitor charging and discharging unit, a voltage conversion unit, a PWM isolation output voltage unit, a contactor voltage isolation conversion unit, a first relay, a second relay, a storage unit and an input and output unit. The system is reasonable in structure, can automatically calculate the voltage which should be output when the contactor dazzles electricity, is simple in calculation, can reduce the requirement for a CPU, and improves the efficiency.