30results about How to "Avoid collection effects" patented technology

The invention discloses a testing device of tool spindle dynamics of a numerically-controlled machine tool in a cutting state and belongs to the mechanical vibration and testing field. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state comprises the numerically-controlled machine tool, a signal collecting system and an analyzing system. According to the testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state, actual vibration of a machine tool spindle cutting tool is measured through an electrical vortex sensor, an axel center track of the machine tool spindle is drew, cutting stimulus signals the cutting tool actually bear are measured through a cutting force tester, and the test and the analysis of dynamic characteristics of the cutting tool in the actual cutting state are achieved in combination with the measured actual vibration of the cutting tool. The testing device of the tool spindle dynamics of the numerically-controlled machine tool in the cutting state has the advantages of solving the problem that the stability of the machine tool system in the actual cutting state cannot be measured and achieving real-time measure of the numerically-controlled machine tool in the actual cutting state.

The invention discloses a collecting device of fog and automatic-sorting aerosol and application method thereof, which relates to technical field of integrated separate collection for collecting information of ground wet deposition and aerosol for meteorological detection. In the invention, both ends of an air inlet channel are repetitively connected with an air inlet, a fog absorbing network, the lower end of the fog absorbing network is connected with a fog gathering container, the lower end of the fog gathering container is connected with a fog meter which is provided with a sensor, one side of the fog absorbing network far away from the air inlet channel is provided with an air blower; a first aerosol collector, a second aerosol collector are respectively connected with an aerosol air channel, and an aerosol air channel controller is provided with a regulator; the data output end of the sensor is connected with a first data input end of a micro data processor, and a second data output end of the micro data processor is connected with the data input end of the regulator. The invention realizes purposes that the collecting efficiency is high, the affect of vertical rainfall and water evaporation under detection field environment on the fog collection can be effectively avoided, and the cost is reduced.

The invention relates to fog gatherer to collect fog sample at outdoor. It is made up of rain water blocking cover, double layer mist water absorbing net, compiling utensil, connecting handle, arm. It has high mist water collecting efficiency, can effectively remove the influence for the collecting from vertical precipitation and moisture evaporation at outdoor, and supply simple and effective experimental installation for developing fog scientific research in the future.

The invention discloses a flat enameled electromagnetic wire surface defect machine vision detection method based on deep learning. The method comprises the following steps: 1, acquiring flat enameledelectromagnetic wire images: establishing a dark field environment, and acquiring a flat enameled electromagnetic wire image by using an area light source and a camera which are installed in a specified mode; 2, preprocessing the flat enameled electromagnetic wire image: segmenting an image of an area where the enameled wire is located by using a clustering algorithm; 3, identifying flaws of theflat enameled electromagnetic wire: training a convolutional neural network by using label data, and training a model to be called by a detection system to realize surface defect detection of the flatenameled electromagnetic wire. According to the method, the flat enameled electromagnetic wire image is acquired and preprocessed through a machine vision method, and the surface defects of the flatenameled electromagnetic wire are accurately identified through the convolutional neural network, so that the manpower input can be reduced, the detection cost is reduced, and the identification accuracy is improved.

The invention relates to a gas drilling shaft bottom near-bit continuous impact focus nipple, comprising a nipple body, a cylinder body, a piston (3) and a gas distribution device, wherein the cylinder body is arranged in a shell (1), the piston (3) is arranged in the cylinder body, a lower gas inlet passage (8) is formed between the cylinder body and the shell (1), a lower gas chamber (2) is formed between the lower end of the piston (3) and the inner wall of the shell (1), the lower gas inlet passage (8) is communicated with the lower gas chamber (2), an upper gas inlet passage (9) is formed at the bottom (7) of the cylinder body, an upper gas chamber (6) is formed between the upper end of the piston (3) and the cylinder body, the upper gas inlet passage (9) is communicated with the upper gas chamber (6), and the gas distribution device is arranged at the upper part of the cylinder body. According to the focus nipple, a focus in seismic exploration is applied to a shaft bottom near a bit, a focus linear (Chirp) scanning technology can be combined with a Mini-SOSIE technology, and the focus excites the ground to generate linear scanning pulse signals through a pulse coding technology, so that the excitation quality of seismic wave is improved.

The invention provides an under-screen fingerprint collection method and device, electronic equipment and a storage medium. The under-screen fingerprint collection method comprises the steps: collecting a first fingerprint image of a user under the irradiation of a light source; determining the target exposure time of the image sensor according to the pixel value of the first fingerprint image; controlling the exposure time of the image sensor to be the target exposure time; and under the target exposure time, collecting a second fingerprint image of the user. According to the embodiment of the invention, the exposure time of the image sensor is adjusted according to the current environment, and the fingerprint image of the user is continuously acquired at the target exposure time, so thatthe quality of the fingerprint image can be effectively improved, and the influence of ambient light on fingerprint acquisition under a screen is avoided.

The invention brings forward a pulse signal synchronization integration measurement apparatus and method resisting random noise, for realizing pulse signal intensity measurement which has a synchronization feature and may has a high pulse pile-up probability. The content mainly comprises a fixed charge reverse charging integration circuit and a synchronization gated data acquisition circuit, and a measurement method for reducing and deducting random noise pulses. The fixed charge reverse charging integration circuit comprises an integration circuit and a fixed charge reverse charging circuit, wherein the integration circuit is used for charging a capacitor and converting intensity information of detected pulse signals into voltage amplitude information; and the fixed charge reserve charging circuit triggered by level is used for limiting output voltages of the integration circuit within a linear scope, and reverse charging pulses can be delayed so as to avoid influences on data acquisition. In terms of the measurement method, the intensity of random noise signals is measured by use of a time-sharing measurement method, the random noise pulses are further deducted in a data processing process.

The invention discloses a device and a method for identifying surface defects of a metal wire. The device comprises a cavity and a labeling unit, wherein the cavity is connected with a control terminal, and the two ends of the cavity are closed. A group of image acquisition units are arranged on the inner wall of the cavity at intervals, a first through hole is formed in one end face of the cavity, a second through hole is formed in the other end face of the cavity, a metal wire enters the cavity through the first through hole and penetrates out of the cavity through the second through hole, the labeling unit is located near the second through hole through which the metal wire penetrates out of the cavity, and the image acquisition units arranged on the inner wall of the cavity are connected with a control terminal. The method comprises the steps of: (1) image acquisition; (2) target positioning; (3) ROI (Region of Interest) extraction; (4) image normalization; (5) defect detection; and (6) result output. The device has the advantages that the cost is low, the practicability is good, and the networking is easy. The method is convenient to operate, and can improve the recognition efficiency and the recognition accuracy, reduce the labor intensity of workers and reduce the production cost.

The invention discloses solar cell satellite-mounted equipment and a cell testing method, and belongs to the technical field of aerospace power supplies, and the solar cell satellite-mounted equipment is characterized by comprising a mounting piece connected with a satellite; the carrying solar cell piece is mounted on the upper surface of the mounting piece; the temperature sensor is mounted on the upper surface of the mounting piece and is used for testing the on-orbit temperature of the solar cell; the illumination sensor is mounted on the mounting piece and is used for monitoring on-orbit illumination angle data of the solar cell piece; the solar cell test system is used for receiving current and voltage data of the temperature sensor, the illumination sensor and the solar cell, and storing and processing the data; the communication module performs data interaction with a satellite; a solar cell piece, a temperature sensor, an illumination sensor and a solar cell test system are carried for data communication. The device has the function of independently and simultaneously acquiring data of multiple sub-batteries, and can acquire current, voltage, battery temperature, illumination angle and test time data on a complete I-V curve in one period.

The invention relates to an icing galloping integrated monitoring system. In the system, an icing galloping data linkage APP is connected with an image acquisition module, an icing image detection module, a galloping alarm module and an online energy taking module; the icing galloping data linkage APP sends a picture, collected by the image collection module, of the power transmission line wire to the icing image detection module; a temperature and humidity sensor and a lens glass heating assembly are arranged in the image acquisition module; the icing image detection module determines the icing thickness of the power transmission line wire according to the picture; the galloping alarm module collects galloping data of the transmission line conductor, determines a galloping characteristic quantity according to the galloping data, and triggers a galloping alarm signal when the galloping characteristic quantity exceeds a galloping set threshold value; meanwhile, the galloping characteristic quantity is sent to an icing galloping data linkage APP; and the icing galloping data linkage APP performs monitoring and uploading according to the icing thickness and the galloping characteristic quantity. According to the invention, real-time monitoring and early warning of the icing galloping phenomenon of the power transmission line are realized.

The invention is applicable to the technical field of endoscopes, and provides a lens mount, a far-end module, an endoscope and a method, a light source assembly accommodating part and a camera shooting assembly accommodating part are arranged in the axial direction of a lens mount body, and the light source assembly accommodating part and the camera shooting assembly accommodating part are arranged adjacently; the side wall of the lens mount body is provided with a side opening part, the side opening part is communicated with the light source assembly accommodating part, and the light source assembly accommodating part is used for accommodating a light source assembly; the bottom surface of the lens mount body is provided with a first bottom surface opening part, the first bottom surface opening part is communicated with the camera shooting assembly accommodating part, and the camera shooting assembly accommodating part is used for accommodating a camera shooting assembly. According to the lens mount, the far-end module, the endoscope and the method provided by the invention, the camera shooting unit and the light source unit can be prevented from being damaged, and the light source unit is convenient to mount.

The invention discloses a super-long collision avoidance control method for a double-altitude three-row roller way, and relates to the technical field of steel production. The method comprises the following steps: double-altitude three-row roller way rough rolling discharge length data and double-altitude standard billet three-row roller way rough rolling discharge length data are collected in real time, and a data transmission system is reconstructed; and a network quality inspection unit is additionally arranged in the data transmission system, the double-altitude three-row roller way rough rolling discharge length data received by the data transmission system is compared with the double-altitude standard steel billet three-row roller way rough rolling discharge length data, and the double-altitude three-roller-way delay stop correction time is adjusted according to the ratio. According to the method, the ultra-long collision avoidance of the double-altitude three-row roller way can be quickly, accurately and simply controlled in real time, and the adjustment precision of the double-altitude three-row roller way delay stop correction time is greatly improved through the control adjustment mode; and the accurate stop position and the accurate stop time of red steel materials on the three-row roller way after rough rolling of double-altitude billet with different lengths can be more accurately controlled.

The invention relates to a matrix-pin-type bone surface coordinate mapper which comprises an outer sleeve, wherein measurement pins are disposed in the outer sleeve, a plurality of elastic limiting assemblies are disposed in the outer sleeve, each measurement pin is sleeved inside each elastic limiting assembly, the measurement pins consist of multiple protective pins and multiple collection pins,the diameter of each protective pin is larger than the diameter of each collection pin, pressure applying assemblies are installed in the outer sleeve, and a working end of each pressure applying assembly is corresponding to the tail end of each collection pin. In this way, the measurement pins are constituted through coordination of the protective pins and the collection pins, a cohesion effectof the collection pins can be realized by the protective pins, arrangement is denser and deformation is avoided, and coordinates obtained are more accurate. Effective flexible pressurizing can be satisfied through use of the mapper in cooperation with an air gun. With high universality, the mapper is applicable to various orthopedics robot operations and can be expanded to other surgical operations. A range fed back by the measurement pins can be collected accurately through existence of a laser range finder, so effective bone surface coordinate points can be acquired.

The invention is applicable to the technical field of endoscopes, and provides a lens mount, a far-end module, an endoscope and a method, the lens mount is provided with a camera module accommodating part along the axial direction of a lens mount body, and the camera module accommodating part comprises a camera working channel and an illumination working channel; the side wall of the lens seat body is provided with a camera module opening part, the camera module opening part comprises a first opening part and a second opening part which are adjacent to each other, the first opening part is communicated with the camera working channel, the second opening part is communicated with the illumination working channel, the first opening part is used for installing a camera module, and the second opening part is used for installing an illumination working channel. And the lighting module is arranged in the second opening part. According to the lens mount, the far-end module, the endoscope and the method provided by the invention, the camera shooting unit and the illumination unit can be more conveniently mounted, and the camera shooting unit and the illumination unit cannot be damaged.

The embodiment of the application discloses a voiceprint detection device and method. The voiceprint detection device comprises a first pickup sensor unit, a second pickup sensor and a main control analysis unit. The first pickup sensor unit collects a first voiceprint signal of a testee by means of contacting the testee. The second pickup sensor unit collects a second voiceprint signal conductedthrough air; and the main control analysis unit is used for comparing the first voiceprint signal with the second voiceprint signal when the testee makes sounds, and determining whether the voiceprintis one of the same person or not. With a solid conduction method, the influence of an open indoor environment and a noise environment on voiceprint collection is avoided.

The invention discloses a camera assembly, a mobile terminal and a body temperature measuring method based on a camera, the camera assembly comprises an image sensing layer, the light sensing side of the image sensing layer is provided with a visible light acquisition area and an infrared light acquisition area; the lens is arranged in the light incident direction of the image sensing layer; and the micro lens layer is arranged between the image sensing layer and the lens, one side, facing the lens, of the micro lens layer is provided with an infrared cut-off area and an infrared anti-reflection area, and the infrared cut-off area and the infrared anti-reflection area respectively correspond to the visible light acquisition area and the infrared light acquisition area in position in the optical axis direction. According to the camera assembly and the mobile terminal, the influence of infrared light on image acquisition is avoided, meanwhile, the material cost is reduced, the camera assembly has the image acquisition function and the body temperature detection function at the same time, and the use experience of a user of the mobile terminal loaded with the camera assembly is remarkably improved.

The invention discloses a simulated medical electron linear accelerator for teaching, relates to the technical field of teaching equipment, and aims to solve the complex technical problem. The accelerator specifically comprises a frame structure, a shaftless rotating mechanism, an accelerating mechanism and an image collecting mechanism, wherein the frame structure comprises a base, a vertical plate and a first shell cover; the vertical plate and the first shell cover are fixedly installed on the outer wall of the top of the base; the inner wall of the vertical plate is rotationally connectedwith a rotating ring; and the shaftless rotating mechanism is arranged on the outer wall of the side, close to the first shell cover, of the rotating ring. The tungsten wire heating principle is usedfor generating electrons, the electrons are accelerated by an accelerating coil and hit on a tungsten sheet to generate photons, and the photons form a conical light beam through a collimator; due tothe fact that the energy of the conical light beam decreases progressively from the center line position of the conical light beam to the periphery, the energy can be homogenized and then emitted outthrough the collimator for radiotherapy; and the whole process is relatively concise under the condition of ensuring the reliability, and the use cost is relatively low.