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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 low-cost high-precision haze measuring instrument which overcomes the defects of high equipment cost and poor measurement precision in the prior art. The haze measuring instrument comprises a filtered gas chamber and a to-be-measured gas chamber. The output end of an optical fiber A faces the central part of a light transmission piece A; the output end of an optical fiber B faces the central part of a light transmission piece C; a diffusion light detection window A is connected with a filtered gas chamber diffusion light detector and a filtered gas chamber transmission light detector; and a diffusion light detection window B is connected with a to-be-measured gas chamber diffusion light detector and a to-be-measured gas chamber transmission light detector. According to the invention, two schemes consisting of luminous intensity attenuation and light scattering are employed to measure atmospheric pollution concentrations, so measurement precision is enhanced.

The invention discloses a novel solar photovoltaic panel installation fixing frame. The novel solar photovoltaic panel installation fixing frame includes a pedestal, the upper side wall of the pedestal is connected with a fixed rod through a plurality of supports, side walls of two sides of the pedestal are connected with bottom plates through a connecting plate, the two bottom plates are locatedat two sides of the pedestal respectively, the two bottom plates and the pedestal are located on the same horizontal line, side walls of the two sides of the fixed rod are provided with fixed plates,telescopic mounting plates are connected between the fixed plates and the bottom plates, and the telescopic mounting plates are arranged in an inclined manner. By use of the novel solar photovoltaic panel installation fixing frame provided by the invention, a solar photovoltaic panel can be mounted to two sides, so that the solar photovoltaic panel can receive more illumination; at the same time,the angle of the solar photovoltaic panel of receiving irradiation of sunlight can also be adjusted according to the angle of irradiation of sunlight, thereby increasing photoelectric conversion efficiency; and moreover, in rainy and snowy weather, the solar photovoltaic panel can also be protected through a roller shutter cover.

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 relates to a solar cell assembly, which comprises a flexible solar cell, wherein the flexible solar cell comprises a first surface for receiving solar radiation energy, and a second surface which is corresponding to the first surface. A shape memory body alloy layer is attached on the second surface, in order to make the flexible solar cell change shapes as the shape changes of the shape memory body alloy layer.

The invention provides a continuous zooming ultrasonic probe. The continuous zooming ultrasonic probe comprises a shell, an annular ultrasonic transducer and a continuous zooming acoustic lens, wherein the annular ultrasonic transducer is arranged on the inner wall of the shell, and is provided with an emitting / receiving surface for emitting / receiving ultrasonic waves; the continuous zooming acoustic lens comprises a first lens part with acoustic impedance capable of changing continuously and a second lens part provided with a hemispherical groove; and the annular ultrasonic transducer, the inner wall of the shell and the second lens part define a sealed accommodating cavity. The invention further relates to a continuous zooming method. According to the continuous zooming ultrasonic probe and the continuous zooming method, the special acoustic lens capable of realizing continuous zooming is adopted, therefore, the multi-level depth imaging can be realized, the aberration of the special acoustic lens is corrected till reaching the degree of high-resolution imaging having transverse resolution and depth resolution, and the continuous zooming ultrasonic probe and the continuous zooming method belong to the field of nondestructive testing.

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.

An optical fiber unit for air blown installation includes at least one optical fiber having a core layer and a clad layer, a protective layer coated on the surface of the optical fiber; and protrusions made of polymer resin and formed on the outer circumference of the protective layer in a banded shape. The protrusions may be formed either by supplying polymer resin to the outer circumference of the optical fiber with passing the optical fiber through an extrusion dice in which grooves of a predetermined shape are formed on a hollow inner circumference thereof, or by supplying polymer resin to the outer circumference of the optical fiber through nozzles with moving the optical fiber in a longitudinal direction.

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 provides a flexible and foldable solar cell panel comprising a base, a hydraulic rod, a rocking bar, a first support plate, a second support plate and a plurality of identical solar cellassemblies. Each of the solar cell assemblies consists of a storage box, two solar cell panel units, a double-head lead screw and a power mechanism; openings are formed in the two opposite side wallsof the storage box; the double-head lead screw passes through the storage box horizontally; the two solar cell panel units are connected with the two ends of the double-head lead screw by cylindricalnuts; and the power mechanism drives the double-head lead screw to make rotation. The bottom of the storage box at the bottom is fixedly connected with the upper surface of the first support plate; the hydraulic rod connects the first support plate and the second support plate; and the first support plate is hinged to one end of the second support plate. According to the invention, with a plurality of solar cell assemblies overlapped completely, the probability of the damage on the solar cell panel unit is reduced effectively, the service life is prolonged, and the solar cell panel is convenient to transport and install.

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 relates to the video signal processing field, more particularly to a digital video data double transfer method. The method performs decoding, sampling and synthesis for input ITU-656 digital video signals with multipath resolution factor of D1 or 4CIF, wherein, each four lines of video signals are synthesized to one line of ITU-656 digital video signal with resolution factor of D1 or 4CIF; redefines the information format of the video signal input / output interface as ITU-656 taxonomy and then input the synthesized two lines or multiple lines of digital video signals with resolution of D1 or 4CIF to a digital video signal processing unit by the digital video interface. The invention solves the problem of digital video signal processing chip high efficiency application, and improves the video signal transfer efficiency greatly, with wide application prospects.

The invention relates to the field of clothes production, in particular to a south exposure type airing frame facilitating taking of fabric. The south exposure type airing frame comprises airing rods, clamping blocks, fixing blocks, a front support and a rear support. Inverted-V-shaped protruding belts are arranged on the top faces of the fixing blocks. The bottoms of the fixing blocks are welded to the top of the front support. The clamping blocks are in L shapes and comprise sliding parts and splicing parts. Inverted-V-shaped sliding grooves are formed in the bottoms of the sliding parts. Through holes are formed in the middles of the sliding parts. Arc protrusions are arranged on the right sides of the sliding parts. The splicing parts are fixed to the left sides of the sliding parts. Arc splicing bars are further arranged on the left side faces of the splicing parts. The airing rods comprise inner rods and sleeve rods. One ends of the inner rods are fixed to the rear support, and the other ends of the inner rods are inserted in the through holes in the middles of the sliding parts. The inner rods are sleeved with the sleeve rods. According to the south exposure type airing frame facilitating taking of fabric, the inclined airing rods arranged side by side are adopted so that all pieces of fabric can receive more sunlight and the fabric can be dried faster; and in addition, each airing rod can be taken off independently, and taking and putting of the fabric are facilitated.

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 relates to an image collection parameter acquisition method, device, equipment and system and a storage medium. The method comprises the following steps of: performing a pressure test ona breast part of a to-be-detected target according to a compression device, and determining the type of the breast part according to the result of the pressure test; acquiring an optical image of thebreast part, and performing identification processing on the optical image to obtain a quantization parameter of the breast part, wherein the quantization parameter is used for representing the sizeof the breast part in a compression state; and determining an image acquisition parameter of the breast part according to the type of the breast part and the quantization parameter, wherein the imageacquisition parameter is used for acquiring a medical image of the breast part. By adopting the method, the imaging time can be shortened, and the radiation dose received by a patient is reduced.

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 relates to the technical field of big data processing, and especially relate to a user data statistical method and system. The user data statistical method comprises that a client carries out primary statistics to recorded user data and sends primary statistics data to a statistical server; the statistical server carries out secondary statistics to received primary statistics data and sends secondary statistics data to a database server, and therefore the database server can write the secondary statistics data into a database. According to the invention, statistics is carried out to the user data twice, after twice statistics, the secondary statistics data as a whole is sent to the database server, interaction with the database server is reduced, and the database server can receive more secondary statistics data, and therefore the data throughout and the data recording efficiency of the user data statistical system are improved.

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 an audio and video data transmission method and device. The audio and video data transmission method comprises an audio and video pause step and an audio and video data receiving step, which are executed at the same time, the receiving step comprises: a step of inquiring an effective code stream frame from a sending end; a step of judging whether the code stream frame is effective; a step of inquiring a corresponding address space from a buffer queue according to the length of the code stream frame, if the code stream frame is effective; a step of judging whether the address space is enough; a step of recording the type and the length of the code stream frame, if the address space is enough; and a step of writing the code stream frame in the buffer queue. The invention further provides an audio and video data transmission device adopting the transmission method. When audio and video play is paused, audio and video data are stilled received by controlling the buffer queue, thereby optimizing the data transmission efficiency when effectively improving the use efficiency of the buffer queue, and continuous data can be provided for a decoding end to guarantee the play smoothness and improve the user experience.

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 invention discloses a mail compressing method and a device thereof. The method comprises the steps of: receiving the mail compression triggering command; and executing a preset compression strategy and compressing the mail according to preset mail data important level. The mail compressing method and the device thereof can be used for executing the preset compression strategy and compressing the mail according to the preset mail data important level, thus releasing part of the used space in a mailbox, being convenient for receiving more new mails, and improving the utilization rate of the space of the mailbox.

The invention discloses a photovoltaic assembly and a packaging method thereof. The assembly comprises a back plate which is matched with a battery bunch shape in series, an elastic shell bound on the back plate, the battery bunch paved on the base plate of the elastic shell, a high-flexible transparent cushion film arranged above the battery bunch and a substrate arranged above the cushion film, wherein the elastic shell is of an integrated structure, and comprises a base plate and a side wall; the shape of the substrate is matched with the shape of the battery bunch; the side wall of the elastic shell is provided with a conflux belt outlet, and the base plate of the elastic shell is internally provided with an air exhaust channel; the air exhaust channel is communicated with the space of the upper surface of the base plate through a plurality of air guide holes arranged on the base plate, the base plate is provided with an aspirating hole, and the aspirating hole is communicated with the air exhaust channel; and a plurality of air guide holes correspond to a battery piece gap of the battery bunch. The photovoltaic assembly provided by the invention has high photoelectric transformation efficiency.