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290results about How to "Real-time observation" patented technology

Test system and test method for dynamic bending fatigue property of thin film material

The invention relates to a test system and a test method for the dynamic bending fatigue property of a small-scale thin film material. The test system comprises an electromagnetic driving part, a sample holding part and a measuring and observing part, and the system provides functions and a test method for dynamic bending fatigue property test for the thin film materials used for various micro/nanoelectronic mechanical systems and supported with matrix or without matrix, the metalized interlinking body foil material used for an integrated circuit and various two-dimensional thin plate type materials and can record in-situ real-time monitoring and analysis to the appearance of the tested sample. The free end of the cantilever beam sample is driven under the electromagnetic force of the electrified coil in the stationary magnetic field to reciprocate relatively to the equilibrium position thereof, thus various types of cyclic fatigue loads can be applied to various material samples, and the precision of the applied fatigue loads can reach the millinewton magnitude. The invention can be used to evaluate the fatigue property and the fatigue crack growth behaviors of various thin film materials.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Colorful blood flow imaging based on ultrasonic Doppler frequency spectrum and display method thereof

The invention discloses a colorful blood flow imaging based on an ultrasonic Doppler frequency spectrum and a display method thereof. The display method comprises the following steps: (1) selecting a sampling door which is large enough; (2) dividing the sampling door into M sub-doors; (3) calculating the frequency spectrum of a time series summed in every sub-door; (4) calculating the upper and lower envelope curves of the frequency spectrum corresponding to every sub-door, determining an effective frequency band analysis area, and calculating the average blood flow speed and a mean square error in the effective frequency band analysis area; and (5) converting speed and variance yields into colorful codes and displaying by using a preset color mapping table. According to the display method provided by the invention, a plurality of doors are utilized to obtain the flow velocity and variance distribution at different positions along the cross section of a blood vessel, therefore, the distribution of the blood flow in a spatial position can be observed better, the volume and blood flow velocity can be measured more precisely, and the colorful blood flow imaging has an important clinical meaning on the diagnosis of cardiovascular diseases.
Owner:SASET CHENGDU TECH LTD

Soft soil area underground continuous wall leakage detecting system

The invention discloses a soft soil area underground continuous wall leakage detecting system, solves such defects as complex construction, difficult measurement and lower accuracy of measured results, and measures specific positions of leakage points more accurately. The transport process of underground ions and the gathering process of the underground ions are observed in real time, so that the specific positions of the leakage points can be obtained more quickly and accurately. The soft soil area underground continuous wall leakage detecting system relates to a underground continuous wall, an observation well, a precipitation well, a soft soil layer, an aluminum electrode, an electrifying device, an electrifying device positive pole, an electrifying device negative pole, an in-pit ground, an out-pit ground, the leakage points, aluminum ions, a sampling device, a slide cover, a bracket, an opening cylinder, a gauze, a separation plate, a round hole, a sensor, a circuit, a circuit fixator, a circuit negative pole and an acquiring system. The underground continuous wall is not limited by thickness and depth. The observation well is used for observing change of an underground water level on the outer side of a foundation pit; the gap and the depth of the observation well are determined according to actual engineering; and the observation well also can serve as a foundation pit outer side precipitation well. The precipitation well is a foundation pit inner side precipitation well, and can be used for observing a underground water level on the inner side of the foundation pit. The soft soil layer is a soil layer suitable for an electroosmosis method.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method and device for controlling welding process based on stability of perforated molten bath

The invention relates to a method and a device for controlling a welding process based on stability of a perforated molten bath, and belongs to the technical field of welding equipment. The problem of electric arc skewing in the welding process is solved by the self rotation of a welding torch, the problem of change of welding positions during different-thick plate welding and misalignment welding is solved by the transverse movement of the welding torch, the problem of all-position welding is solved by the pitching of the welding torch, and the decoupling of welding torch movement and welding wire movement is realized by the respective control of the welding torch and the wire feeding system so as to control the arc striking and perforating during thick plate welding. The device is a special welding machine head for controlling the welding process based on the stability of the perforated molten bath. The method and the device have the advantages that the special plasma welding machine has higher integration degree, and the wire delivering system, the arc pressure control system, the rotation, extension and retraction of the welding torch, a camera monitoring system and the transverse movement and adjustment are organically combined into a whole; and the maintenance of a welding mechanism system is very easy.
Owner:BEIJING UNIV OF TECH

Machining method of micro-drop and micro-fluidic control chip

InactiveCN102580799AResistant to organic solvent corrosionNot easy to adsorb samplesLaboratory glasswaresMicro fluidicMicrofluidic chip
The invention discloses a machining method of a micro-drop and micro-fluidic control chip. The method comprises the following steps: (1) designing and prefabricating a channel structure of the micro-drop and micro-fluidic control chip; (2) cutting component sheet glasses matched with the channel structure on a glass slide; (3) constructing the channel structure on a substrate by the component sheet glass; arranging a cylindrical glass capillary tube with a tapering tail spine and a cylindrical capillary tube in a microchannel of the channel structure, inserting the tail spine of the cylindrical glass capillary tube with the tapering tail spine into the cylindrical glass capillary tube and coaxially arranging the cylindrical glass capillary tube and the tail spine; and then linking a cover glass; and (4) inserting a plain end of the cylindrical capillary tube with the tapering tail spine into a thin tube with the inner diameter matched with that of the cylindrical capillary tube, and then inserting the thin tube into a gas between the component sheet glasses. According to the machining method, the process technology of the micro-drop and micro-fluidic control chip does not adopt a traditional etching method, so that the complicated processes such as photoetching can be avoided, the related expensive equipment can be omitted, and the dependence on professionals for MEMS (Micro Electro Mechanical System) can be abandoned.
Owner:TSINGHUA UNIV

V2X test method and system

The invention provides a V2X test method and a system. The V2X test system comprises a simulation system, a vehicle dynamics model system and tested equipment. The method comprises the steps of building a virtual test scene by using a simulation system, wherein the virtual test scene comprises lanes, a main vehicle virtual simulation vehicle model corresponding to the tested equipment and an infrastructure equipment model; in the test stage, the simulation system outputs main vehicle information and peripheral equipment information to the tested equipment; the main vehicle information and theperipheral equipment information are used for the tested equipment to generate a control command; the simulation system receives a vehicle control command returned by the vehicle dynamic model system;the vehicle control command is obtained by converting the control command by the vehicle dynamic model system; and the simulation system dynamically displays the main vehicle virtual simulation vehicle model according to the vehicle control command. By using the technical scheme provided by the invention, the participation of a real vehicle is not needed, so that the test can be carried out without producing a sample vehicle, the vehicle model research and development period is shortened, and the cost is reduced.
Owner:BEIJING JINGWEI HIRAIN TECH CO INC

Buoy-based long-time on-line monitoring apparatus and method for sea cloud height

The invention provides a buoy-based long-time on-line monitoring apparatus for the sea cloud height. The apparatus comprises a buoy; and a laser ceilometer, a buoy attitude measuring module, a cloud height correction and compensation module, a communication module, and a meteorology and hydrology observation sub system. The buoy attitude measuring module is used for measuring attitude parameters, like a heading parameter, a rolling parameter and a pitching parameter, of a buoy platform; the cloud height correction and compensation module is used for realizing cloud height observation correction and compensation based on the attitude parameters of the ceilometer; and the communication module is used for uploading the data that can be used by users. According to the invention, buoy-based laser radar cloud height observation is carried out and the measurement result is accurate and reliable; off-shore, long-term continuous, real-time, high-precision, high-temporal-spatial-resolution marine environment monitoring on the cloud height, cloud thickness, and conventional marine meteorology and hydrology can be realized; an accurate and reliable data support can be provided for scientific researches of marine atmosphere, weather forecasting, ocean shipping, and naval drills and the like; and thus the apparatus has important significance in development of multiple fields like the marine economy, the marine science and technology, and the legal rights safeguarding on the sea.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI

In-situ long-term real-time observation system and method for deep-sea engineering geological environment

The invention relates to an in-situ long-term real-time observation system and method for the deep-sea engineering geological environment. The in-situ long-term real-time observation system comprisesobservation instruments, a mat-supported carrying platform, an observation data relay and transmission buoy system, a remote observation data management server, a client and a matched release and recovery method. The observation instruments and the carrying platform are laid and recycled through a hydraulic penetration mechanism, an acoustic releaser and an underwater robot. The observation instruments and the mat-supported carrying platform are integrated with seawater batteries, and relay and transmission buoys are integrated with solar batteries, thereby realizing self power supply of a submarine observation platform and a sea surface data relay system. The remote observation data management server and the client can query and download the observation data and change parameter settings.The in-situ long-term real-time observation system overcomes the defects that a submarine observation network is long in construction time and great in capital investment and that the common mat-supported observation station cannot be powered by itself or perform real-time data transmission, realizes in-situ, long-term and real-time observation for the deep-sea engineering geological environmentand can be applied to projects such as long-term monitoring for the deep-sea hydrate mining environment and the like.
Owner:OCEAN UNIV OF CHINA

Soft rock weathering and breaking experimental apparatus and experimental method thereof

The invention discloses a soft rock weathering and breaking experimental apparatus and an experimental method thereof. The soft rock weathering and breaking experimental apparatus is placed on a frequency modulatable vibrating table and is provided with a transparent inner barrel and an outer barrel. A required volume of water can be added by a water inlet on a barrel upper cover; a water outlet and a gas delivery opening are formed at the bottom of the experimental apparatus; a plurality of layers of round hole sieve plates are arranged in the inner barrel; hole diameters of the round hole sieve plates are sequentially decreased from top to bottom according to a standard sieve hole size of a laboratory; micro high-strength frequency modulatable fluorescent lamps and monitoring probes are placed in the interval between the inner barrel and the outer barrel above each sieve; geotechnical cloth is arranged for isolating soil and filtering water. According to the soft rock weathering and breaking experimental apparatus and experimental method which are disclosed by the invention, effects of variable natural factors on soft rocks are controlled in a room by simulation so as to research influence of each factor on soft rock weathering; by the monitoring probes, the weathering and breaking process of each layer of soft rock particles can be observed and recorded, and the weathered broken rock particles can be automatically sieved and are continuously weathered and broken; the soft rock weathering and breaking experimental apparatus and experimental method have the advantages of being visual, convenient, rapid, accurate and the like.
Owner:CHANGAN UNIV

Method and system for automatically identifying and monitoring screen with mouse activities

The invention discloses a method and system for automatically identifying and monitoring a screen with mouse activities. The method comprises the following steps: obtaining mouse position information of an analog machine operation terminal where a mouse is disposed from an OT server of a maser control chamber operation station in real time; carrying out one-to-one comparison between the obtained mouse position information and multiple groups of picture coding information stored in a predefined mode; and if the mouse position information is the same as one piece of the picture coding information, indicating a picture on a multi-picture monitoring terminal. Since the mouse position information is obtained in real time from the analog machine end and then is compared with the multiple groups of picture coding information of the prestored monitoring terminal one by one, and the picture where the mouse is currently disposed is indicated according to a comparison result, an analog machine instructor or examiner can accurately track and observe the operation process of an operator at the analog machine end in real time at a monitoring terminal, knowledge and skill deviations of the operator can be discovered and corrected in a training process in a more relevant mode, and the quality and the effect of teaching and training are improved.
Owner:TAISHAN NUCLEAR POWER JOINT VENTURE

Printed circuit board (PCB) production management system

The embodiment of the invention discloses a printed circuit board (PCB) production management system, which comprises a plurality of clients and at least one server. The clients respectively comprise a production management unit, an information display unit and a data interaction unit. Each production management unit is used for managing product information, production process information and delivery information; each information display unit is used for providing an operation interface and displaying the information of the production management unit, which is obtained from the data interaction unit. The servers respectively comprise a database unit and a data interface which are respectively used for providing a data support to the clients; the date interaction unit of the corresponding client is connected with the data interface of each server and is used for sending the information of the production management units to the corresponding database unit for storage and receiving data of the corresponding database unit. By adopting the PCB production management system disclosed by the embodiment of the invention, a manager can perform statistics and observation on progress, problems and details in a production process in real time and in detail, and therefore, management requirements in the PCB production process are met.
Owner:周增涛

CameraLink image processing device and photoelectric rotating tower

The invention provides a CameraLink image processing device and a photoelectric rotating tower, and relates to the technical field of a photoelectric rotating tower. The CameraLink image processing device comprises a FPGA processing module, a DSP processing module and a power supply processing module; and the FPGA processing module acquires a high-definition image in a CameraLink system, convertsgenerated CameraLink data into YUV422 data, sends the YUV422 data to the DSP processing module, receives compressed image data compressed by the DSP processing module and sends the compressed image data to a display control side by a data link, so that the display control side monitors a shooting case of the photoelectric rotating tower in real time. According to the technical scheme provided by the invention, a FPGA and DSP architecture is used, acquired images can be compressed, synchronously transmitted to the data link and synchronously stored in an on-board magnetic disk, snapshot processing on a key region can be implemented, photos are transmitted to the data line in real time, and the CameraLink image processing device and the photoelectric rotating tower can be widely applied in the image recording direction of various on-board, vehicle-mounted and ship-borne photoelectric equipment.
Owner:北京航宇创通技术股份有限公司

Underwater robot three-dimensional path visual tracking method

The invention relates to an underwater robot three-dimensional path visual tracking method. The invention belongs to the technical field of underwater robot three-dimensional path planning. Accordingto the method, a geodetic coordinate system, a carrier coordinate system and a curve coordinate system are established, a six-degree-of-freedom model of an underwater robot is established according tothe coordinate systems, a path tracking error model is established according to the established six-degree-of-freedom model of the underwater robot, and course angle deviation and submergence angle deviation are determined; three-dimensional path tracking is performed on the established six-degree-of-freedom model of the underwater robot by adopting a back-stepping sliding mode control method; and three-dimensional path tracking is trained by adopting a deep reinforcement learning method to complete three-dimensional path visual tracking of the underwater robot. According to the invention, the tracking error is continuous, and the path tracking stability is improved; an integral term is added into the conductivity of the sight method to introduce the influence of time; and a boundary reward function is added to accelerate the convergence of path tracking, the overshoot is reduced, and the precision is improved.
Owner:HARBIN ENG UNIV
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