102results about How to "Acquisition stable" patented technology

The invention discloses automatic detection and assembly production equipment for a PCB (Printed Circuit Board) and a use method of the automatic detection and assembly production equipment, and solves the problems that an existing device is not accurate in pause when detecting angle adjustment of a camera and image distortion is caused by blurred sight when detecting movement of the camera. The device comprises a device main body, an automatic feeding assembly, at least one group of combined detection mechanisms and an auxiliary detection assembly, and the device main body comprises a device base, a detection base and an assembly base; the combined detection mechanism is arranged, the combined detection part does not interfere with operation of the automatic feeding assembly, the detection efficiency is improved, the combined detection part is driven by the monitoring driving part and the detection linkage part, the detection range can be flexibly adjusted, automatic pause is achieved during detection, and therefore a camera is allowed to have more time for focusing, and the detection efficiency is improved. And each part is ensured to be in a clear focus state.

The invention discloses a dental pulp stem cell-derived exosome photocuring hydrogel and a preparation method and application thereof in treating severe periodontitis, and the dental pulp stem cell-derived exosome photocuring hydrogel has better biocompatibility and capability of promoting periodontal tissue regeneration by utilizing the dental pulp stem cell-derived exosome; the sustained-release effect of the hydrogel is beneficial to continuously providing treatment components and reducing the treatment times; through local administration, systemic side effects are reduced, and the safety and effectiveness of treatment are improved.

The invention provides a road inspection method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a plurality of inspection points on a target road, determining a vehicle inspection position point according to each inspection point, the vehicle inspection position point being a position where an image collection device of an automatic driving vehicle can shoot the inspection point, the inspection points are in one-to-one correspondence with the vehicle inspection position points; adopting a heuristic search algorithm to calculate and obtain an inspection route at least according to all the vehicle inspection position points; and controlling the automatic driving vehicle to inspect the inspection points in sequence according to the inspection route to obtain corresponding inspection images, uploading all the inspection images to a back-end server to determine an inspection result, and inspecting the target road. The method has higher stability, can adapt to more extreme working environments and collect more stable detection data, and meanwhile, the automatic driving vehicle is provided with various abundant high-precision sensors, so that target defects and quality can be monitored more comprehensively.

The invention provides a product positioning and guiding method based on industrial vision, which comprises the following steps: selecting the type and damping coefficient of a shock absorber according to the vibration frequency characteristic of precision equipment in an industrial environment, and matching with the rigidity of a spring to form a shockproof structure meeting the shockproof requirement of the precision equipment; constructing an environment three-dimensional point cloud model containing the positions of the shock absorbers according to the extracted image feature information in combination with the layout of the shockproof device, and identifying and marking the shock absorbers in the environment three-dimensional point cloud model; based on the mark of the shock absorber in the environment three-dimensional point cloud model, acquiring equipment vibration acceleration data, and estimating the vibration response of the anti-vibration device to obtain corrected vibration displacement and speed; and according to the damping characteristic of the shock absorber and the corrected vibration displacement and speed, performing precise compensation on the original vibration signal, and filtering the compensated signal through a digital filter to obtain a stable vibration signal.

The invention discloses a vehicle target motion state estimation method based on an unmanned aerial vehicle video, and relates to the technical field of computer vision and intelligent monitoring, and the method comprises the steps: receiving a real-time video stream of an unmanned aerial vehicle, decoding the real-time video stream to obtain an original video frame, carrying out the graying, zooming and normalization preprocessing to obtain a processed image, and synchronously adjusting the size of a vehicle bounding box; vehicle targets are detected, a unique ID is allocated for multi-target tracking, and a motion trail is maintained; determining a background feature region, detecting and tracking feature points to estimate an inter-frame transformation matrix, and performing accumulative transformation to obtain a background overall transformation relation and a historical frame-to-current frame mapping mechanism; calculating a displacement residual error based on the trajectory and the mapping, judging direction consistency, estimating a smooth speed, and updating a motion confidence coefficient to judge a vehicle motion or static state and static duration; outputting the ID, the state, the static duration and the average speed of the vehicle; the method effectively eliminates the motion interference of the unmanned aerial vehicle, improves the estimation precision, is suitable for the traffic monitoring of the unmanned aerial vehicle, and is high in real-time performance and reliability.

The invention relates to the technical field of middle straining beam pier stud detection equipment, and discloses a novel middle straining beam pier stud surface detection device and method.The device comprises a climbing part, the climbing part is arranged on the outer side of a middle straining beam pier stud in a sleeving mode, the climbing part is slidably connected with the outer side wall of the middle straining beam pier stud, and the climbing part is provided with a fluid propelling module and an image collecting module; the climbing part moves in the vertical direction of the middle tie beam pier stud, and the climbing part is used for acquiring image information of the middle tie beam pier stud. The detection part is arranged at one end of the climbing part, the detection part is in sliding connection with the climbing part, and the detection part is used for detecting the concrete quality of the middle tie beam pier column. Through the combination of the climbing part and the detection part, image acquisition and concrete quality detection on the surface of the middle tie beam pier stud are realized, and the detection precision and the detection efficiency of a bridge structure are effectively improved.

The invention relates to the technical field of plateau trains, in particular to a non-contact passenger uncomfortable state early warning system suitable for a plateau train, which comprises a passenger state information real-time monitoring system and a passenger uncomfortable state early warning system, the non-contact passenger uncomfortable state early warning system suitable for the plateau train has the advantages that real-time monitoring of the passenger state is achieved by integrating visual signals and physiological signals of passengers, and higher objectivity and accuracy are achieved. In the early warning mechanism, the system fully considers individual differences of passengers, constructs a personalized early warning standard, introduces a dynamic adjustment mechanism, automatically updates an early warning threshold according to real-time environment working conditions and physiological and visual data, and ensures accurate evaluation and feedback of the state of each passenger.

The utility model relates to the technical field of man-machine interaction of electronic equipment, and particularly discloses a backlight touch key. The backlight touch key comprises a shell and a plurality of key assemblies, each key assembly comprises a key unit and a touch conduction unit, and each key unit is provided with a first end and a second end which are opposite to each other; the first end is embedded in the shell, the key unit penetrates through the touch conduction unit, the outer surface of the touch conduction unit is provided with a capacitive sensing surface, the capacitive sensing surface is attached to the shell, and the relative position of the shell and the touch conduction unit is fixed. According to the backlight touch key, the specific structure is improved, so that high integration of the structure and simplification of the manufacturing process are realized while the backlight uniformity and the induction sensitivity are ensured.

The utility model provides equipment cavity temperature measurement system and with the equipment cavity of heating function. Equipment cavity temperature measurement system is used for carrying out temperature measurement to n heating plate in equipment cavity, it includes n thermocouple, first support, n thermoelectric signal transmission wire and thermoelectric signal output module, n thermoelectric signal transmission wire with n thermocouple is connected respectively through n male female matching connecting joint, n male female matching connecting joint and n thermoelectric signal transmission wire are along first support setting, thermoelectric signal output module with n thermoelectric signal transmission wire is connected and transmits n thermoelectric signal to equipment cavity outside, equipment cavity temperature measurement system still includes the n thermocouple pressure block of setting respectively on n heating plate, through the adjustment of each thermocouple pressure block to make the thermocouple and corresponding heating plate contact. The utility model can realize the thermoelectric signal stable collection, transmission of thermocouple, reduce temperature measurement error, installation difficulty and manufacturing cost.

The present invention relates to a method for polarizing electron and nuclear spins in a single NV color center and a device for realizing the same. The polarization method provided by the present invention can simultaneously polarize the electron and nuclear spins in a single NV color center, and the polarization rate can reach more than 95%. The polarization process does not require the use of the NV ensemble to calibrate the magnetic field angle. The magnitude and direction of the magnetic field are changed by adjusting the position of the magnet, and the angle accuracy is better than 0.6 degrees, eliminating the need for complex Helmholtz coils and cooling measures. The device provided by the present invention has a relatively simple structural design, a low device cost, and excellent stability. After being positioned at a single color center, fluorescence information can be stably collected for a long time, and the fluorescence intensity fluctuation can be guaranteed to be less than 6% within 1 hour, and the saturation count rate is 150k counts / s.

The invention relates to a PLC data acquisition control method and device for an AI exhibition hall, equipment and a medium, and the method comprises the steps: executing an acquisition control code, carrying out the statistics of a data volume index of PLC data at a current moment based on a preset first acquisition frequency, and constructing an observation data volume at the current moment according to the data volume index; according to the observation data volume at the current moment, the historical smooth data volume at the previous moment, the maximum response coefficient and the minimum smooth coefficient, calculating and determining a dynamic smooth coefficient of the data volume index; calculating and determining the smooth data volume at the current moment, calculating and determining the collection frequency adjustment amount of the first collection frequency by adopting a preset PID control algorithm, updating the first collection frequency to determine a second collection frequency, and continuing to collect the PLC data of the target interaction object by the central control system of the AI exhibition hall according to the second collection frequency; and repeating the steps until the PLC data of each target interaction object in the AI exhibition hall is acquired. According to the invention, the problems of blocking and poor real-time performance of a traditional PLC data acquisition system can be solved.

The utility model relates to a vibration monitoring mechanism for unstable mobile equipment. The vibration monitoring mechanism comprises a vibration sensor, a pressure sensor, a telescopic sleeve, a universal joint assembly, a linear motor module and a longitudinal driving device, a transverse guide rail is arranged on the linear motor module; a moving seat is arranged on the transverse guide rail; a longitudinal driving device is fixed on the moving seat; the longitudinal driving device is in driving connection with the mounting seat; a universal joint assembly is arranged on the outer side face of the connecting base. A connecting rod is fixed to the outer side face of the universal joint assembly. The connecting rod is sleeved with a telescopic sleeve. The free end of the connecting rod is provided with a pressure sensor and a vibration sensor. The linear motor module drives the moving seat to move on the transverse guide rail, so that the vibration sensor can synchronously work along with the product, the longitudinal driving device drives the vibration sensor to be attached to the product, and the pressure sensor ensures that the contact pressure between the vibration sensor and the product is stable; and the vibration sensor can stably collect vibration data.

This invention discloses a primer set for amplifying a novel HCV subtype 6xp and a primer set for detecting drug resistance mutations. The primer set for amplifying the novel HCV subtype 6xp includes nested PCR primers for amplifying the full length of the novel HCV subtype 6xp, while the primer set for detecting drug resistance mutations is a set of primers targeting drug resistance mutation sites in the three functional regions of NS3, NS5A, and NS5B. The primer set provided by this invention has high specificity and high amplification efficiency, enabling specific amplification of the entire genome of the novel HCV subtype 6xp and accurate detection of drug resistance mutation sites in the three functional regions. It is suitable for clinical diagnosis, antiviral treatment guidance, epidemiological surveys, and viral evolution research of this subtype, and has significant clinical application value and scientific research significance.

This utility model relates to the field of battery cell technology and discloses a novel soft-pack PACK structure, including a housing. A cover is fixedly connected to the outer wall of the housing, and a sealing ring is fixedly connected to the inner wall of the cover. A support is installed inside the housing, and an epoxy board is fixedly connected to the outer wall of the support. Copper-aluminum composite busbars are installed on the left and right outer walls of the epoxy board, with threaded rods threaded into the interior of the copper-aluminum composite busbars. An aluminum busbar is fixedly connected inside the epoxy board, and a pressure strip is provided on the outer wall of the aluminum busbar. In this utility model, the housing and cover house the battery cells to protect them from external impact damage. An epoxy board is placed on the side of the support, and then an aluminum busbar is installed inside the epoxy board. A pressure strip is then fixed to one side of the aluminum busbar, and a data acquisition line is placed between the pressure strip and the aluminum busbar. This achieves the effects of ensuring battery cell overcurrent, welding strength, and stable data acquisition.

The present application relates to a kind of track crack detection devices based on magneto-optic, belong to crack detection technical field.The device includes: surface light source, for generating light beam;Magneto-optic sensor, at the surface of measured track preset distance, for sensing the leakage magnetic field generated by measured track due to crack in magnetic field environment, and leakage magnetic field information is modulated as the polarization state change of reflected light beam;Industrial camera, for collecting reflected light beam after being modulated by magneto-optic sensor, generate magneto-optic image;Control processing module is at least connected with industrial camera, for receiving magneto-optic image, and identifying crack in measured track.By the device, real-time online detection under normal running speed of train can be realized.And detection is not covered by surface contaminants such as oil stain, rust mark, water stain, dust.

The application discloses a skin oil detection method, device and system, and relates to the technical field of skin oil detection. The method comprises the following steps: acquiring an electrical resistance value collected when a bioelectric resistance probe is pressed against the skin; controlling a camera component to collect a skin image and obtain a skin original image; performing hair segmentation on the skin original image to obtain a skin segmentation image and a corresponding hair area, calculating a hair area-to-skin original image area ratio to obtain a hair proportion value; obtaining a reflection image of liquid area mirror reflection based on the skin segmentation image, calculating a reflection image area-to-skin segmentation image area ratio to obtain a mirror reflection area proportion value; and obtaining a skin oil value based on the electrical resistance value, the hair proportion value and the mirror reflection area proportion value. The application has the advantages of fast skin oil detection speed, low cost and accurate detection result.

The present application relates to the technical field of aluminum electrolysis, and provides an aluminum electrolysis cell damage inversion method based on a machine learning algorithm, comprising the following steps: obtaining current data of an aluminum electrolysis cell through a fiber-optic current sensor, and obtaining temperature data of the aluminum electrolysis cell; performing discharge area division according to a discharger of the aluminum electrolysis cell; performing area division on the current data and the temperature data, and performing feature extraction on the current data and the temperature data; establishing a physical information forward model based on a neural network, and associating and mapping a damage state vector with current feature data and temperature feature data through the physical information forward model; constructing a cathode joint loss function and an anode joint loss function; respectively performing iterative solution on the cathode joint loss function and the anode joint loss function through an optimization algorithm, outputting an optimal damage state vector, and generating a damage space distribution result of the electrolysis cell. The present application can realize online inversion and spatial distribution visualization of anode and cathode damage states.

The present application relates to the technical field of underwear gluing image recognition, and particularly relates to a kind of underwear gluing image recognition method and system based on high-precision positioning, the method comprises the following steps: obtaining no trace underwear image data;The no trace underwear image data is divided into multiple local regions, and local brightness feature information is obtained;According to the local brightness feature information of each local region, the edge detection threshold of each local region is determined;Edge detection operator is applied to each multi-resolution image, and the edge graph of each multi-resolution image is extracted in combination with the edge detection threshold of each local region;Fusion each edge graph, and obtain preliminary edge contour;The preliminary edge contour is subjected to morphological processing, smoothing processing and connection processing, and refined gluing contour is obtained;The refined gluing contour is converted into coordinate point sequence, and the coordinate point sequence is output as gluing path instruction.The above is helpful to improve product quality and production efficiency.

The utility model discloses a nitrogen dioxide detection device for automobile exhaust, and relates to the technical field of automobile exhaust detection. One side of the outer wall of the analysis and detection equipment is fixedly connected with a first hose through a connecting pipe; one end of the outer wall of the first hose is fixedly connected with a detection pipe; one end of the outer wall of the detection pipe is fixedly connected with a collection probe through a second hose; the connection pipe and the first hose are communicated with each other; the detection pipe and the second hose are communicated with the collection probe; the outer side wall of the detection tube is fixedly connected with a guide plate through a first square block; according to the utility model, the worm is rotated to drive the worm gear to rotate, and the worm gear rotates to drive the rotating rod and the acquisition probe to rotate, so that the angle of the acquisition probe is changed, and the upward inclination angle of the acquisition probe can better acquire the tail gas in the automobile tail gas exhaust pipe, so that the detected data is more accurate, and meanwhile, the detection accuracy is improved. The angle of the acquisition probe is not required to be changed by manually pressing the detection tube.

The utility model provides a kind of active air environment DNA sample collector, it is related to environmental DNA collection field. Including handheld air gun, filter paper and filter paper compression ring, the air inlet end of handheld air gun is provided with the suction nozzle being communicated with handheld air gun;Filter paper is set at the side of suction nozzle away from air inlet end, and is compressed by filter paper compression ring;Filter paper compression ring is detachably connected to suction nozzle. The present application can solve the problems of low collection efficiency, inconvenient operation, poor adaptability, sample contamination and other problems existing in the existing air DNA collection device, provide a kind of active air environment DNA sample collector with compact structure, portable and efficient, strong controllability and convenient replacement of filter medium, solve the shortcomings of traditional fixed position collection, can stay in target habitat area by walking, so as to more comprehensive collection of environmental DNA sample, and the collection efficiency is high.

According to the intelligent sensing caulking sealing structure and the runway pavement health state monitoring method provided by the invention, the prefabricated sensing rubber strip with the modulus gradient transition embedding material is arranged in the runway shoulder caulking, so that tight coupling and cooperative deformation between the sensing optical cable and the caulking glue made of a silicone material are realized; the problems of modulus mismatch, interface stripping, optical cable bounce and the like are effectively solved, and stable and high-fidelity acquisition of vibration signals is ensured; according to the monitoring method, the system identification technology of center line excitation and runway shoulder response is utilized, the surface wave propagation model and the regularization reconstruction algorithm are combined, the runway center line vibration state is inversed in a high-precision mode from runway shoulder signals, propagation attenuation and time delay are compensated, the monitored space coverage capacity and signal restoration precision are remarkably improved, and the monitoring precision is improved. The low-influence, wide-coverage and continuous real-time monitoring of the stock runway is realized, and finally a more reliable and efficient technical scheme is provided for runway surface health state evaluation and operation safety guarantee.

The embodiment of the invention discloses a near field payment method, device and equipment. The scheme comprises the following steps: a payment terminal scans and finds a peer-to-peer connection group created by user equipment based on a wireless network communication technology; obtaining discovery information issued by the user equipment in the peer-to-peer connection group; and decoding the discovery information, obtaining service data corresponding to the user equipment, and executing a payment service corresponding to the user equipment according to the service data.

The application provides a kind of test device and method for evaluating volume change rate of cement slurry in cementing waiting-on-phase, and belongs to the technical field of oil and gas well cementing engineering.The test device comprises a curing kettle body, a cement slurry cup is arranged in the curing kettle body, a supporting assembly is used to suspend the cement slurry cup in the curing kettle body, and an adjusting assembly is used to assist in taking the cement slurry cup.The cement slurry cup can be suspended by the supporting assembly and the adjusting assembly, the remaining space in the curing kettle body forms a continuous flow cavity, which is beneficial to simulate temperature conditions and pressure environment closer to the actual downhole environment, the cement slurry cup can be easily taken out or put into the curing kettle body without the help of additional tools, the operation time is saved, the liquid medium in the cement slurry cup can be easily emptied, and the subsequent processing work after the test is completed is simplified.

The present invention relates to a multi-source heterogeneous space-based data acquisition method and system based on a message-driven mode, the method comprising: using a data acquisition message processing module to plan a collection plan according to the demand for space-based data, and issuing a data demand plan; using a data monitoring and sending module to receive the data demand plan, obtaining the corresponding data source according to the acquisition type, executing the data acquisition task, and monitoring the newly added space-based data in a multi-threaded manner according to the discovery-and-access monitoring mechanism, and sending the monitored space-based data message to a data scheduling processing module in a message-driven mode; using the data scheduling processing module to perform unified scheduling processing on various types of space-based data collected, and feeding back the processed standardized multi-source data response to the data acquisition message processing module. The present invention can realize the automatic access of space-based data of various network segments of various types of satellites and various types of payloads with different data types, formats, precisions, and delays.

The invention discloses a wind tunnel negative pressure working condition pressure sensor initial reading calibration device and method. The device comprises a high-precision pressure controller, high-precision absolute pressure sensors with different measuring ranges, a vacuum pump, a gas buffer tank, a zero-leakage electromagnetic reversing valve, a matched sealing pipeline and the like. According to the invention, stable acquisition of 0.01%-level precision data can be realized, and important basic guarantee can be provided for accurate control of a wind tunnel flow field and accurate measurement of model aerodynamic parameters. On-line in-situ switching of a test pressure channel and a calibration pressure channel is achieved through switching control of the remote control electromagnetic valve, then the low-range pressure sensor initial reading on-site calibration method is achieved, the problem that initial reading on-site calibration of the low-range pressure sensor cannot be achieved in a conventional atmospheric pressure environment is solved, and the low-range pressure sensor initial reading on-site calibration method is suitable for large-scale popularization and application. The system deviation between the sensors is reduced, the deviation between the pressure truth value of the sensor and the measured pressure is also reduced, and the reliability of pressure measurement is improved.

The utility model relates to the technical field of notebook computer testing, and discloses a notebook computer camera testing tool, which is characterized by comprising a testing platform, a first motor, a second motor, a third motor, a fourth motor and a fourth motor, the plane adjusting mechanism is connected with the base and suitable for adjusting the horizontal position of the base, and the plane adjusting mechanism is provided with a first driving unit suitable for driving the plane adjusting mechanism to move; the height adjusting mechanism is connected with the plane adjusting mechanism and suitable for adjusting the height of the plane adjusting mechanism, the height adjusting mechanism is provided with a second driving unit suitable for driving the height adjusting mechanism to move, and the problems that time and labor are wasted during notebook computer detection, and the reliability degree of detection results is low are solved.

This invention relates to the fields of digital therapy, intelligent medical devices, and applied artificial intelligence technologies, and more specifically to a closed-loop pain management method and system integrating diagnostic assistance and interference-resistant sensing. It includes: a wearable device comprising: a neuromodulation signal generator configured to generate neuromodulation stimulation pulses; a biosensor array physically integrated with the neuromodulation signal generator configured to sense physiological data indicating the user's autonomic nervous system activity; a controller configured to execute a time-division multiplexing protocol; a processor; and a non-transitory computer-readable storage medium associated with the processor for generating a diagnostic support report. This invention enables simultaneous effective neural stimulation and high-fidelity ANS signal acquisition on a single wearable device.

The invention relates to the technical field of ore body detection, and discloses an information acquisition device for ore body three-dimensional modeling, which comprises a supporting column, a mounting seat is fixedly connected to the top of the surface of the supporting column, fixing mechanisms are arranged on both sides of the top of the mounting seat, an acquisition mechanism is arranged on the surface of the supporting column, and a supporting mechanism is arranged at the bottom of the supporting column. The information acquisition device for ore body three-dimensional modeling can obtain physical and mechanical parameters of rock, the parameters have very important guiding significance for subsequent mining design work, and the parameters can help engineers to reasonably plan mining schemes, determine mining sequences, mining methods, model selection of mining equipment and other key links, and improve the mining efficiency. Therefore, comprehensive and efficient collection of the internal information of the ore body is realized, the overall efficiency and precision level of ore body information collection work are greatly improved, and powerful data support and technical guarantee are provided for scientific development and utilization of mineral resources.

The invention discloses intelligent processing equipment for a high polymer material, belongs to the technical field of crushing equipment, and is used for solving the technical problems of slipping and wire drawing during crushing and grinding of polytetrafluoroethylene. The intelligent processing equipment for the high polymer material comprises a crushing mechanism, an embrittlement mechanism and a grinding mechanism; a pair of crushing rollers is rotationally connected into the first shell, and the space in the first shell is divided into a first cavity and a second cavity through the crushing rollers, wherein the first cavity and the second cavity communicate with each other. The device has the beneficial effects that the phenomenon of wiredrawing is inhibited while the problem of slipping of polytetrafluoroethylene fragments is avoided, and the continuous and efficient crushing process is ensured; a plasma embrittlement and liquid nitrogen freezing embrittlement two-stage embrittlement process is adopted, so that polytetrafluoroethylene particles are easy to break in the grinding stage, a sieve plate and nitrogen micro-positive pressure auxiliary screening are combined, powder with the target particle size can be stably obtained, and the particle size uniformity of the product is remarkably improved.