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The invention, which belongs to the field of laser radar detection, proposes a two-dimensional MEMS scanning galvanometer laser radar system, thereby extending a receiving field of view and increasinga signal-to-noise ratio. A two-dimensional MEMS scanning galvanometer is a scanning mechanism. A control system controls the laser to emit high-frequency pulsed laser; the returned laser signal lightpasses through a filter and a large relative aperture optical lens successively and then is imaged on the incident end face of an image transmission fiber light cone; the image transmission fiber light cone transmits to the surface of an APD array detector. The image transmission fiber light cone is formed by arranging a cone-shaped optical fiber bundle. The APD array detector selects a corresponding APD detector unit to collect signals according to scanning angle of the two-dimensional MEMS scanning galvanometer and the position of a light spot outputted by corresponding echo light at the image transmission fiber light cone. Therefore, , when the caliber, focal length, and detector area of the receiving optical system are certain, the field of view of the MEMS laser radar can be extended, the interference of the ambient background light on the system can be reduced, and the signal-to-noise ratio of the signal receiving can be improved.

The invention relates to a solar wall, comprising an exterior wall body and a sill wall located from a lower window top to an upper sill. The sill wall comprises a first part connected to the exterior wall body in an inset manner and a second part protruding from the exterior wall body. The second part comprises an inclined portion and a connecting portion for fixedly connecting the inclined portion to the first part. The inclined part inclines out down with respect to the exterior wall body. An outer surface of the inclined portion is made of light-permeable material. The inside of the second part is provided with a chamber enclosed by outer and inner surfaces of the second part and two lateral faces of the second part. The first part is provided with an air vent communicated with both indoor air and the chamber. The solar wall is capable of effectively screening sunlight from entering indoors in summer so as to avoid the rise of the indoor temperature and also capable of converting solar energy into electric energy, is capable of admitting more sunlight irradiating the indoor and a heat-absorbing material in the sill wall in winter, thereby facilitating the rise of the indoor temperature and effectively decreasing energy consumption of a building.

The embodiments of the invention provide a video comment information processing method and apparatus. The method comprises the following steps: arranging a comment area at a preset position of a video play page; obtaining comment information of a video and configuration information associated with the comment information of the video; and according to the configuration information associated with the comment information of the video, displaying the comment information of the video in the comment area. The video comment information processing method and apparatus provided by the embodiments of the invention can enable users to communicate and interact with other users about the comment information of the video in real time in a video watching process.

The invention discloses a self-adjusting photovoltaic panel which comprises a bearing base. A first air bag is arranged on the bearing base, a second air bag is arranged on the other side of the bearing base, a fixing block is welded and fixed to the center position of the bearing base, a first cavity is formed in the fixing block, a second cavity is formed in the other side of the fixing block, baffles are slidably connected to the interiors of the first cavity and the second cavity, racks are welded and fixed to the upper portions of the baffles, the racks penetrate through the fixing blocks, movable seats are rotatably connected to the ends, located outside the fixing blocks, of the racks through pin shafts, the movable seats are jointly connected with a supporting plate, and a plurality of photovoltaic panels are arranged at the top of the supporting plate. The photovoltaic panel has the advantages that by utilizing the principle that a gas expands after being heated, due to the fact that the two ends are irradiated by the sun differently, the sizes are different, the supporting plate inclines, the photovoltaic panel can receive more sunlight, and the power generation efficiency is improved.

The invention discloses a disease diagnosis method on the basis of medical image data augmentation and belongs to the technical field of disease diagnosis methods. The method includes: 1) mapping original image data to a deep characteristic space and extracting the characteristic of highly-linearized semantic information; 2) according to the distribution of the data, corresponding to different types in the medical image, in the characteristic space, acquiring a characteristic covariance matrix for data augmentation; 3) calculating loss function of the data augmentation and continuously optimizing the loss to acquire a model with a higher characteristic extraction capability. The data augmentation method only works in model training, so that there is no more calculation load and calculationtime introduced during the prediction of the medical image data by using the model. By means of the method, fixed medical image data is effectively augmented, so that the demand on the quantity of labeled patient data during training of a deep neural network. The method effectively relieves the problems that the medical image data is difficult to acquire and is high in labeling cost and further increases disease diagnosis accuracy.

The invention discloses a two-stage behavior identification method and system based on a key frame sequence and behavior information, and the method comprises the steps: screening out similar adjacent frames through calculating the similarity between sparse representation results of video frames, and obtaining a key frame sequence; calculating the similarity between the categories by using the behavior information of the behavior category label, and dividing all behavior categories into a plurality of large categories; establishing and training a two-stage behavior identification method model, wherein the first-stage training enables the network to have a rough classification capability, and the second-stage training enables the network to have a fine classification capability; and finally, identifying the video by using the trained model. According to the method, the key frame sequence of the video is acquired as input data, so that the key frame sequence contains more information; in addition, the network training process and the recognition process are divided into two stages by utilizing the information of the behavior category label, so that the learning process of the network is easier, and the recognition accuracy is improved.

A back-illuminated image sensor and a forming method thereof are provided, the forming method comprising: providing a semiconductor substrate, the semiconductor substrate including a first side and asecond side opposite to the first side, wherein a plurality of discrete photosensitive regions are formed in the semiconductor substrate on the first side, the photosensitive regions being adapted tosense light incident from the second side; Forming a first dielectric layer on a second side surface of the semiconductor substrate; Forming a transparent color filter layer correspondingly on the surface of the first dielectric layer above the partial number of photosensitive regions; Forming a light-absorbing material layer covering surfaces of the transparent color filter layer and the first dielectric layer; Etching the light-absorbing material layer without a mask to form an opaque sidewall on the sidewall surface of the transparent color filter layer; a color filter layer is formed on the surface of the first dielectric layer between the transparent filter layers. The back-illuminated image sensor formed by the method of the invention improves the performance of anti-crosstalk, and has the advantages of simple process and high integration level.

The embodiment of the invention relates to an intranet and extranet data transmission method and device, a medium and electronic equipment. The method comprises the following steps: establishing a plurality of partitions in a message queue; acquiring a plurality of messages actively pushed by a first monitoring server; allocating the plurality of messages to the plurality of partitions according to a processing speed; and in response to a pull instruction from a second monitoring server, sending the messages in the plurality of partitions to the second monitoring server. According to the invention, the data transmission platform is established between the intranet and the extranet, the message queues distribute the messages to different partitions, and the message data of different partitions cannot be repeated, such that the throughput of the messages can be increased, and more messages can be received; and on the other hand, the messages are distributed to the partitions according tothe processing speed, so that the messages in different partitions can be prevented from being overstocked due to inconsistent processing speed, and the second monitoring server actively pulls the data, so that server crashes due to too large data volume is avoided.

The embodiment of the invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises a first display area and a second display area, wherein the light transmittance of the second display area is smaller than that of the first display area; the first display area comprises a substrate, a driving array layer, a planarization layer and a pixel limiting layer, the driving array layer, the planarization layer and the pixel limiting layer are stacked on the substrate, and the substrate is provided with a first light-transmitting opening; the first light-transmitting opening at least penetrates through one side, far away from the driving array layer, of the substrate, the first light-transmitting opening is filled with a transparent material, and the light transmittance of the transparent material is greater than that of the substrate; a plurality of pixel openings for accommodating light-emitting materials are formed in the pixel limiting layer; a second light-transmitting opening is formed between every two adjacent pixel openings; and the projection of the second light-transmitting opening on the substrate is partially or completely overlapped with the projection of the first light-transmitting opening on the substrate. According to the technical scheme provided by the embodiment of the invention, full-screen display can be realized, the light transmittance of the camera area under the screen is ensured, and the display panel is prevented from generating cracks.

The invention discloses a high-resolution high-speed laser three-dimensional imaging system. The system comprises a laser (1), a grating (2), a scanning device (3), an angle amplifying lens (4), a receiving lens (5), a detector (6), a signal processor (7) and a scanning device driver (8), wherein the laser and the grating form a light source; the scanning device, the scanning device driver and theangle amplifying lens form an optical scanning system, so that the linear array point array laser scans a target area in a preset track; the receiving lens, the detector and the signal processor forman optical receiving system to receive echo light reflected by a target end to form a three-dimensional point cloud image of the target area. The system has the advantages of high dynamic, high resolution, low cost, low power consumption, miniaturization and the like, and overcomes the contradiction that the scanning speed of the traditional three-dimensional imaging system and the aperture of the receiving optical system as well as the image resolution and the image frame rate cannot be harmonized.

The invention discloses a wood drying device utilizing photo-thermal energy. The wood drying device comprises a transparent glass room, an arc-shaped supporting frame, a threaded rod and a wood frame;the transparent glass room is fixedly arranged on a vehicle frame; an arc-shaped mirror surface is fixedly connected to one side of the arc-shaped supporting frame; the top of the wood frame is fixedly connected with a sun shield; and the side surface of the transparent glass room is provided with a transparent glass door. According to the wood drying device, the arc-shaped mirror surface structure and the threaded rod adjusting structure are arranged so that the light can be better adjusted, and more light and heat energy can be received by the transparent glass room; through the arrangementof a vacuum layer and a greenhouse gas layer, and after the short wave of solar radiation is converted into heat energy, the long wave of the heat energy can be prevented from radiating outwards, sothat the heat can be well stored, and drying can be facilitated; the sun shield is arranged so that the wood can be prevented from directly receiving the light, and the light energy can be fully absorbed to transformed into heat; and the device is simple in structure, easy to realize, capable of fully utilizing the solar energy for achieving the drying function, is environment-friendly and energy-saving, and is worthy of popularization and use.

The invention provides a binocular camera system and a binocular camera space calibration method, and solves the problems of poor imaging quality and no depth information in the prior art. The binocular camera system is sequentially cascaded with a camera module, a correction module, a calibration module and a storage module; the camera module comprises an event camera and a common CMOS camera which are connected in parallel. The space calibration method comprises the steps that a camera module acquires an address-event data stream, an image and shooting time; the correction module performs distortion and epipolar correction on the data stream and the image; the calibration module calibrates the spatial positions of the corrected data stream and the image; and the storage module stores the corrected data streams, images and corresponding relations thereof in a persistent memory in a homography matrix set. A spectroscope is not needed, and poor imaging caused by the spectroscope is avoided. The system has parallax, and the spatial depth information can be recovered through the parallax. The system is used in the fields of high-frame-rate and high-resolution data reconstruction, high-speed moving target identification and tracking and the like.

The invention provides a sunshine tracking device for a solar water heater. The sunshine tracking device for the solar water heater comprises a solar energy tracker (1), a drive motor (2), a solar cell panel (3), a storage battery (4), a base (5) and a track (6). The sunshine tracking device for the solar water heater is characterized in that the solar energy tracker (1) is composed of a sun sensor, an identification processing circuit, a global position system (GPS) module and a server system. A digital chip is used for finishing processing of identification and server information. The drive motor (2) is a direct current steeping motor. The base (5) is contacted with the ground track (6). A shaft of the drive motor (2) is connected with a water heater heat collection box center vertical shaft (7). The heat collection box center vertical shaft (7) is fixedly connected with a water heater support. The solar cell panel (3) is a crystalline silicon solar cell panel which is arranged on a hot water collection box and is connected with the storage battery (4) through wires. The sunshine tracking device for the solar water heater has the advantages that the solar water heater moves along with the movement of the sun, vacuum tubes receive the most sunniness, and water can be heated more quickly.

The invention provides a support, and belongs to the field of engineering building auxiliary equipment. The support is used for installing a photovoltaic module and comprises at least one support unit, wherein the support unit comprises a front strut, a rear strut, an oblique beam and a plurality of first connection pieces, each first connection piece comprises a connection part and a cylindrical installation part, an installation hole is formed in the installation part, the connection part is fixed on the installation part and is provided with a positioning plane, the positioning plane is arranged at intervals relative to the installation part along an axial line direction of the installation hole, the axial line of the installation hole and the positioning plane incline, a connection hole is formed in the positioning plane, the front strut and the oblique beam are connected through the first connection piece, and the rear strut and the oblique beam are connected through the first connection piece. The support is firm and reliable in structure, when used for installing the photovoltaic module, the support is good in force bearing and high in seismic resistant and wind resistant capability, and is safe and reliable to use; and after the photovoltaic module is installed, the angle of a cell panel is convenient to determine, the support is not needed to be adjusted, and time and labor are saved during installation.

The invention relates to the technical field of cleaning of photovoltaic assemblies, and particularly discloses a photovoltaic plate surface cleaning device. The photovoltaic plate surface cleaning device comprises photovoltaic plate strings which are linearly arranged and installed, and is characterized in that a travelling device is transversely erected on the one or plurality of adjacent photovoltaic plate strings, and is sequentially provided with a front sweeping device, a scraping sweeping device and a sweep-back device from front to rear, wherein the front sweeping device, the scrapingsweeping device and the sweep-back device transversely cover the surfaces of the photovoltaic plate strings; an air blowing system and an automatic control system are installed on the travelling device; the air blowing system is connected with the front sweeping device, the sweep-back device and an auxiliary purging system; and the automatic control system is connected with the travelling device,the front sweeping device, the scraping sweeping device, the sweep-back device and the air blowing system. The photovoltaic plate surface cleaning device is reasonable in structure, stable in operation, efficient in sweeping, and is used for reasonably maintaining a photovoltaic power generating station and improving the power generating efficiency.

The present invention discloses a puncture needle sleeve. The puncture needle sleeve comprises a connecting part, a head part, scale marks and a detection part; the connecting part is linear and a radial cross section of the connecting part is circular; the head part is integrally formed with one end of the connecting part and positioned on the same straight line with the connecting part; the scale marks are uniformly arranged on a periphery of the connecting part; and the detection part is arranged on the connecting part. The detection part is arranged on the connecting part close to the headpart, intensity of ultrasonic reflection signals is increased due to the arrangement of the detection part, definition of the puncture needle sleeve in a B ultrasonic image is improved, accuracy andsafety of puncture operation are improved, operation difficulty and risks are reduced, and a puncture success rate of a disposable optimal target point is increased.