13results about How to "Not easily disturbed" patented technology

The invention relates to the technical field of large-burial-depth metal pipeline positioning, in particular to a large-burial-depth metal pipeline positioning method and system based on electromagnetic method nondestructive detection, and the method comprises the following steps: S1, obtaining data and constructing a model: S1.1, obtaining magnetic field data when a pipeline leaks, carrying out the induction of the data, carrying out the subsequent analysis of the data, and constructing a detection model; s1.2, acquiring magnetic field data of the pipeline position, concluding the data, then analyzing the data, and constructing a calculation model; the device can meet the measurement of large-burial-depth pipelines smaller than 100 m, has high electromagnetic anti-interference capacity, can detect the accurate positions and burial depths of the pipelines, is suitable for close-distance same-ditch laying of multiple pipelines, is not prone to being interfered by nearby pipelines, is further suitable for measurement of pipelines in complex environments such as water areas and buildings above, and has wide application prospects. Meanwhile, measurement of underground optical cables and cables can be met, and the application range of the device is greatly widened.

The invention relates to intelligent glasses and a working method thereof. The intelligent glasses comprise a glasses frame, and lenses, a first micro optical camera, a second micro optical camera, a microprocessor and a projector are arranged on the glasses frame; the first micro optical camera and the second micro optical camera are respectively arranged on two sides of the glasses frame, are connected to the microprocessor and are used for respectively acquiring PPG signals of two side faces of a user and sending the PPG signals to the microprocessor; the microprocessor is used for carrying out pulse waveform analysis and calculation according to the collected PPG signals of the faces of the two sides of the user to obtain the pulse conduction speed, and a blood pressure value is obtained through a calibration model and deep learning calculation; the projector is connected to the microprocessor, corresponds to the lens and is used for displaying the blood pressure value obtained through calculation on the lens. During use, effective detection can be achieved without clinging to the skin of a user, interference of user activities and ambient light is avoided, the detection result is high in precision, and real-time blood pressure state information can be provided.

The invention belongs to the field of biological feature recognition, and discloses a dynamic local fusion network gait recognition method and system, the dynamic local fusion network gait recognition method comprises a dynamic local fusion network model, and the dynamic local fusion network model is composed of a feature extractor, a global perception flow and a local detail flow; the method comprises the following steps: firstly, taking a skeleton sequence extracted from an attitude estimator as input, and performing spatio-temporal feature extraction through a feature extractor consisting of an ST-GCN module with a residual error and a bottleneck structure; the extracted data respectively flows into a global perception stream and a local detail stream to obtain global feature representation and local feature representation of the gait; and splicing the obtained global features and local features to obtain the gait of the target person, and obtaining a gait recognition result according to the similarity with a known skeleton sequence. The method not only pays attention to global skeleton motion information, but also performs network model modeling on local limb parts, so that gait features with higher identification degree can be extracted.

The application discloses a novel industrial multifunctional pulse eddy current probe and relates to the technical field of pulse eddy current detection.The probe shell is internally provided with excitation assemblies and a Hall sensor.The excitation assemblies are in multiple groups, the Hall sensor is arranged at the center of the excitation assemblies, and the excitation assemblies are arranged in a circumferential array around the Hall sensor.The application is not easily disturbed by other magnetic fields or electric fields in the surrounding environment, can reduce signal fluctuation and errors caused by external interference to a certain extent, and improves the reliability and stability of probe detection.

The application provides a multi-frequency antenna remote controller, which comprises a shell, a cavity in the shell, an external antenna assembly arranged on the top of the shell, an internal antenna assembly arranged on the top of the cavity, and a picture transmission PCB arranged in the cavity and connected with the external antenna assembly and the internal antenna assembly through feed lines, wherein the external antenna assembly and the internal antenna assembly have different transmitting frequency bands. The external antenna shared by 1.4G / 2.4G frequency bands and the internal antenna of the 5G frequency band are arranged, so that when the signal of a certain frequency band is lost, communication can be switched to another frequency band, and the remote controller is not easily interfered. In addition, the structure of the external antenna and the internal antenna is simple, so that the structural cost is reduced, and the remote controller is more beautiful.

The application discloses a kind of composite bubble film production device and production method thereof, applied in composite bubble film production technical field, the present application is positioned by setting composite mechanism, limiting component can be positioned to middle film, prevent middle film from accidental displacement, and support heating assembly, heating assembly can heat the upper die and lower die contacted with itself, and heating coating assembly, prevent glue from solidifying because temperature is too low, coating assembly can be coated with glue on the surface of upper die and lower die, facilitate upper die and lower die and middle film to be adhered, feeding assembly can uniformly transport glue into coating assembly, increase the uniformity of coating assembly coating, support component can support heat printing assembly, and provide power to heat printing assembly, heat printing assembly can be adhered to upper die and lower die and middle film, and upper die and lower die and middle film are imprinted, complete the processing of composite bubble film.

The application discloses a kind of based on FPGA's video real-time defogging method, utilize the similarity between video stream frame design pipeline architecture to execute step: using the sky area segmentation algorithm of fusion minimum channel value and four direction Sobel operator gradient value, the sky area and non-sky area of foggy image are segmented;First, the minimum channel value of sky area is taken as the channel component of atmospheric light value average, then the atmospheric light value is calculated;First, the initial transmittance of whole foggy image is calculated, the initial transmittance of non-sky area is not handled, using the difference value of minimum channel mean value and the minimum channel value of single pixel based on the transmittance adaptive compensation mechanism designed, the initial transmittance of sky area is revised and handled, and the final transmittance is obtained;Based on atmospheric light value, final transmittance and atmospheric scattering model, foggy image is restored to no fog image.The method can maintain low complexity while ensuring defogging performance, easy to FPGA deployment.

The present application relates to the technical field of networked vehicles, and relates to a method for judging the relative position of a networked vehicle on a curve, comprising the following steps: S1: calculating the radius of curvature of the driving track of the vehicle at the current time; S2: judging the stability of the driving track at the current time; S3: calculating the center of the driving track of the vehicle at the current time; S4: judging whether the included angle between the line connecting the vehicle and the center of the driving track of the vehicle at the current time and the line connecting the remote vehicle and the center of the driving track of the vehicle at the current time is greater than a preset included angle threshold value, if the included angle is greater than the preset included angle threshold value, the driving track of the vehicle at the current time is not adopted, otherwise, the driving track of the vehicle at the current time is adopted and the next step is executed; S5: dividing the lane according to the shortest distance from the remote vehicle to the driving track of the vehicle at the current time, and judging which lane the remote vehicle is located in on the driving section of the vehicle at the current time, the present method avoids the situation that the roadside unit cannot judge the position of the vehicle due to failure.

The application belongs to the technical field of biotechnology, and particularly relates to a recombinant antigen of American trypanosomiasis and a preparation method and application thereof. The application provides a recombinant antigen of American trypanosomiasis, wherein a plurality of neutralizing epitopes and complete amino acid sequences of Trypanosoma cruzi antigens are connected according to a specific order to construct a recombinant antigen capable of covering all stages of the life cycle of Trypanosoma cruzi. The recombinant antigen is complete in Chagas antibody recognition site coverage, can recognize and combine all types of antibodies in the Chagas chronic and acute infection period, and is not easily interfered by other substances in serum, and is high in specificity.

The present application provides an iris focusing method, device, electronic device and storage medium of a slit lamp device, wherein the iris focusing method of the slit lamp device includes: controlling a motor to drive a main camera to move to the center position coordinates of the eye based on the center position coordinates of the eye; acquiring a first image and a second image, wherein the first image and the second image both include a light spot reflection produced by a lamp bead on the eye; and controlling the motor to drive the main camera to move to a target focus position based on the difference between the pixel coordinates of the light spot reflection in the first image and the pixel coordinates of the light spot reflection in the second image. The present application can realize iris autofocus, overcoming the defects of manual focus methods such as slow focusing speed, easy interference in framing, and easy to miss the best shooting opportunity.

The invention discloses a novel intelligent patient nursing room which comprises a nursing room body, a sickbed, a bathtub, a closestool, ventilation equipment, a rotating shaft, rolling cloth, a driving mechanism and a main controller. The bathtub is arranged in the nursing room body, the closestool is adjacent to the bathtub and located on the front side of the bathtub, the sickbed is located above the bathtub and the closestool, universal wheels are arranged at the bottoms of bed legs of the sickbed, and ventilation equipment is arranged in the nursing room body. The rotating shafts extend in the front-back direction and are rotationally installed in the nursing room body, the two rotating shafts are arranged in parallel in the left-right direction, the driving mechanism is connected with the two rotating shafts, and the two ends of the rolling cloth are fixedly wound on the two rotating shafts respectively; and a main controller is arranged in the nursing room body. According to the scheme, the bathtub, the closestool, the ventilation equipment and other components are arranged in the independent nursing room body, so that the function of a capsule bin can be achieved, the privacy of a patient is guaranteed, the lifting structure is arranged, the patient can be helped to turn over, get in and out of the bed and other activities, and use is very convenient.

The present invention relates to the field of ocean observation technology, and discloses a highly integrated temperature sensor for deep-sea applications, including a temperature sensor housing, a temperature sensitive element, a signal processing circuit board, and a digital signal transmission cable. The temperature sensitive element and the signal processing circuit board are packaged in the temperature sensor housing, and the digital signal transmission cable connects the signal processing circuit board to the main circuit board of the device. The present invention also discloses a production and packaging process for a highly integrated temperature sensor for deep-sea applications. The various parts of the entire temperature sensor of the present invention are integrated into a whole, which simplifies the structure while improving the measurement accuracy and anti-interference ability of the temperature sensor.

The application provides a kind of multi-modal feature-based internet of things equipment fingerprint identification method and system, equipment, applied to network traffic analysis technical field.The method comprises: obtaining the network traffic data of each internet of things equipment in target internet of things system for mutual communication, and extracting flow feature and sensitive text feature in network traffic data;Based on the pre-trained natural language model, the sensitive text feature is encoded and processed to convert the sensitive text feature into the corresponding high-dimensional feature vector, and the sensitive text feature vector is obtained;Based on the importance of each feature, the flow feature vector and the sensitive text feature vector are weighted and fused to obtain the fusion feature vector;The fusion feature vector is input into the trained equipment identification model for equipment fingerprint identification to obtain the identification result;The sensitive text feature is a feature with context semantic coherence and specific syntax structure.The application solves the problems of low identity recognition accuracy and vulnerability of internet of things equipment.