84results about How to "Synchronous acquisition" patented technology

The invention discloses an integrated automation terminal of an intelligent station area, comprising an alternating current acquisition plate and a core processing plate. The integrated automation terminal of the intelligent station area is characterized in that the core processing plate is connected with a display interface plate by a double-row superdense space connector; a descending communication module is used for communicating a lower acquisition device; an ascending communication module is mainly used for communicating an upper main station; and the ascending and descending communication modules are connected with the display interface plate by a connector of the modules to realize the bidirectional interaction and communication of data. The integrated automation terminal of the intelligent station area satisfies the functions of low-voltage centralized collection under the station area, station-changing monitoring, line-loss examination, power measurement, power quality management, reactive power compensation, and the like by a single device and forms uniform information platform share using a changing station as a unit.

The invention discloses an acquisition system and an acquisition method for a stereoscopic video. The system comprises acquisition equipment, a microcontroller, an acquisition server and stereoscopic display equipment, wherein the acquisition equipment comprises a plurality of two-dimensional (2D) cameras and a plurality of altitude regulation devices; a 2D camera is opposite to each altitude regulation device; the 2D cameras are linearly arranged, and are used for shooting planar video images; the microcontroller is connected with the acquisition equipment through a general purpose input and output port of each 2D camera, and is used for transmitting a pulse signal to the 2D cameras to control the 2D cameras to synchronously shoot the planar video images with preset frame frequency; the acquisition server is connected with the acquisition equipment through a data port of each 2D camera, and is used for acquiring the planar video images shot by the 2D cameras, geometrically calibrating the 2D cameras, and performing real-time geometrical correction and stereoscopic image synthesis on the planar video images shot by the 2D cameras; and the stereoscopic display equipment is used for receiving and stereoscopically displaying a stereoscopic image synthesized by the acquisition server. The system has real-time data acquisition capability, high flexibility and good stereoscopic perception effects.

The invention discloses a condition type triggering high-speed synchronous collecting and recording system with expandable channels. The system comprises a clock module, a collection module, a storage module and a mainboard controller. The clock module, the collection module and the storage module are mutually connected with the mainboard controller through a PCIE interface. The clock module can output accurate synchronous clock signals and synchronous triggering signals to drive the collection module to carry out high-speed synchronous collection on input analog signals, the collected data are written into the storage module for permanent storage at a high speed under the effect of the mainboard controller, wherein frequencies of clock signals and sources of triggering signals can be set, and judgment signals output by the collection module are accessed into the clock module for condition type triggering. Compared with the prior art, the method has the advantages that the channels are expandable, synchronous collection and condition type triggering are achieved, collection can be carried out through multiple modes, secondary development is facilitated, the man-computer interaction design is simple, and other advantages.

The invention relates to a measurement device for a thin film pressure sensor. The measurement device comprises a measurement mechanism and a control and signal acquisition part, wherein the measurement mechanism comprises a screw rod, a cross beam bracket, a step motor, a cross beam, a force sensor, a linear bearing, a shaft, a spring, upper and lower electrodes, upper and lower supporting plates and a supporting column; the measurement mechanism is characterized in that the force sensor is fixed to the cross beam; the cross beam is sleeved with the screw rod; the step motor can be used for driving the screw rod to rotate and driving the cross beam to rotate up or down; the shaft is fixed at the lower end of the force sensor and arranged in the linear bearing; the spring is connected to the lower end of the shaft; the lower end of the spring is fixed to an insulated connecting column; the insulated connecting column is connected with the upper electrode; the thin film pressure sensor to be measured is arranged between the upper and lower electrodes; the two connecting points of the upper and lower electrodes can be connected with an external voltage resistance measurement unit. The measurement device has the advantages of simplicity for operation, high pressure measurement precision and the like.

The present invention discloses an ion thruster beam test method based on a Faraday probe array which can test the ion thruster beam distribution, a beam divergence angle and a thrust vector deflection angle simultaneously. All probe test signals are acquired synchronously, the data information amount is large, and the whole test and the data processing can be finished usually in only several minutes. A shielding outer sleeve is arranged at the outer side of an ion current catch tray of each Faraday probe and is directly and electrically connected with a disc-type metal support by metal contact, so that a bias voltage can be supplied to the disc-type metal support by just one conducting wire, and the number of the probe leads is reduced substantially. When the beam divergence angle is calculated, the ion beam current density flow value of which a test current value is less than 5% of an average value is set as zero, thereby reducing a measurement error. A test point is located in the center of a small test area, the beam density measured by the test point is defined as a beam average value of the small area, thereby simplifying the calculation.

The invention discloses a myoelectric estimation method for the motion moment of a wrist joint. The surface electromyography signals of six forearm muscles were collected in the process of wrist flexion and extension, and the muscle contraction time was calculated by TKE operator. The maximum isometric contraction tension of each muscle was measured synchronously by isokinetic muscle strength testing system and electromyograph. The forward muscle-bone model of wrist joint was established. The maximum tension of muscle contraction time and muscle contraction time was input, and the estimated torque at the limit position of wrist joint bending and extension was output. The kinematics data of the wrist joint during bending and stretching were obtained by using the three-dimensional motion capture system, and the reference moment at the limit position was calculated. Taking the square of the error between the estimated torque and the reference torque as the objective function, the conjugate gradient method is used to calibrate the forward muscle-bone model of the wrist joint, and the surface electromyography signal is used to estimate the torque of the wrist joint. The invention can beapplied to the fields of myoelectric artificial hand, rehabilitation medical treatment, bio-electric integration and the like.

The invention relates to a structure intensity testing system based on an intelligent wireless sensor network, which comprises a monitoring terminal, an intensity testing sensor array arranged in a structure to be tested, a wireless sensor terminal node, a wireless routing node and a wireless base station node, wherein, the wireless sensor terminal node collects structure response output of the intensity testing sensor array under each loading grade, and transmits the structure response output by the wireless sensor network through the wireless routing node and the wireless base station node in sequence to the monitoring terminal. The invention also relates to a method for the system to carry out communication, data collection and visualization. The system and method of the invention overcomes the problems that the existing structure intensity testing systems have complex leads, big added weight, low intellectualization and networking degree, etc., can effectively reduce the number of the leads in a static force / fatigue testing system, improve testing precision and realize real-time and simultaneous collection, transmission, display and storage of the structural test data, and has the advantages of intellectualization, high efficiency and low cost.

The invention discloses a sound positioning system design which can be used for human-computer interaction to replace keyboard input and is based on an array microphone. The sound source positioning technology of a microphone array refers to an array consisting of a plurality of microphones which are arranged according to a certain geometric structure. The same sound source arrives at different microphones at different time. Time delay when the sound source arrives at the different microphones is collected so as to calculate the position of the sound source and represent different function commands; an upper computer sends a corresponding action response to realize human-computer interaction. Sounds produced when fingers rap a desktop are collected; on the basis of a classic time delay estimation algorithm, a time delay estimation result is processed in combination with a BP neural network, a positioning position is determined, and an input key value, namely the keys the fingers click on, is obtained. As a result, a traditional PC keyboard can be replaced to some extent, and human-computer interaction of command input is realized.

The invention discloses a karst cave penetrating type foundation pile ultimate bearing capacity model test system and test method and relates to the technical field of pile foundation manufacturing. The system comprises a test box, a load control module, a data collection module, a foundation pile model, a karst cave model and an analysis display module. The foundation pile model and the karst cave model are both arranged in the test box and are fixed through a stratigraphic model. The inner side of the test box is covered with a smooth film. The top of the foundation pile model is provided with a speed loading device and a displacement detection device. The speed loading device is connected with the load control module. The displacement detection device is connected with the data collection module. A plurality of strain pieces are arranged on the surface of the foundation pile model and are connected with the data collection module. A heating device is arranged in the karst cave model. The data collection module and the load control module are both connected with the analysis display module. Synchronous collection of displacement data and stress-strain data can be achieved, the application range is wide, and necessary test conditions can be provided for the study of ultimate bearing capacity of a karst cave penetrating type foundation pile.

The invention provides an autonomous positioning method and device based on inertial navigation data and used for a coal cutter. The method comprises the following steps: according to an inertia sensor mounted on the coal cutter, measuring in a carrier coordinate system, thus obtaining first positioning data of the coal cutter, wherein the first positioning data comprises a translational acceleration of the coal cutter in the carrier coordinate system and a rotational angular velocity of the coal cutter in the carrier coordinate system; performing integral calculation on the translation acceleration in the first positioning data by combining initial estimated values of a speed and a position of the coal cutter, thus obtaining second positioning data in a navigation coordinate system; constructing a first attitude matrix in the carrier coordinate system, and performing differentiation, thus obtaining a second attitude matrix in the navigation coordinate system; according to the second attitude matrix, performing an inverse operation, thus obtaining an attitude angle of the coal cutter in the navigation coordinate system; and according to the second positioning data and the attitude angle, determining the position of the coal cutter in the navigation coordinate system.

The invention discloses a test method that fast realizes wind tunnel small scale pressure detection; the method comprises the following steps: a set of pressure taps are connected on a balance measuring cable in a wind tunnel via a pressure detection module; the pressure detection module is virtualized as a balance; the pressure on the pressure tap can be obtained via reading a signal on the balance measuring cable; unlike a conventional method in which an electronic scan valve sets massive devices and pipelines in the wind tunnel field, the method only uses the existing balance measuring cable in the wind tunnel to fast obtain the pressure value of the corresponding point in the wind tunnel; the test method is convenient and fast, and has an excellent anti-electromagnetic interference capability.

The invention provides a real-time feature extraction method for the analysis of complex ingredients of traditional Chinese medicines. The method adopts a data communication module, a two-dimensional feature chain detection module, a correction module for local noise and local baseline and feature distinguishing module. Mass spectrometric data collected by a sequence-analysis mass synchrometer is used for determining whether the data has continuous features with data collected at the previous time point so as to dynamically detect a two-dimensional feature chain; utilizing the mass-charge ratio and time information contained in the two-dimensional feature chain can quickly remove noises and baselines in time dimension, thereby overcoming the defect that the previous algorithm can not be accurately estimate the baseline by means of time dimension only; as the estimated noise and baseline have local features, a local signal-to-noise ratio is that whether the feature chain contains the feature of a component, thereby simplifying the realization of feature detection. The invention has reasonable design, and the data processing system has the characteristics of real time, fewer custom parameters and high arithmetic speed, which is applicable for liquid chromatograph-mass spectrometers.

The invention provides an experimental device and an experimental method for simulating the whole process of moraine lake overtopping burst disasters. The experimental device is provided with a six-in-two system for realizing the synchronous measurement of kinetic parameters, environmental noise vibration signals and imaging parameters in the full life and whole process of triggering, propagation, overtopping, disaster formation and evolution of ice collapse surges in ice lake burst. The experimental device comprises a water supply device, a surge triggerring device, an energy dissipation device, a buffer device, an experimental water tank main body device, a collection device, a synchronous measurement system and a monitoring system. According to the experimental device, the whole process of ice collapse-surge-overtopping-disaster formation can be simulated, the erosion characteristics of a moraine dam in the outburst process can be observed and researched, important parameters such as dynamics and environmental noise in the movement process of debris flow formed by outburst flood can be monitored, and the knowledge gap of the dynamic mechanism of the erosion process of moraine dam in the current study of ice lake burst flood is mainly filled.

The invention discloses a high-altitude operation remote operation method and system based on stereo vision and gesture control. A PC end receives high-altitude operation area scene information acquired by a binocular stereo camera and displays the information on a wearable stereo display; according to the stereo scene work condition displayed by the wearable stereo display, hand operation is performed and movement information of hands and fingers is tracked in real time, the tracked movement information of hands and fingers is sent to the PC end and processed to be converted into a movement instruction of a bionic manipulator; and after the bionic manipulator receives the processed and converted movement instruction to follow correspondingly to complete remote operation of high-altitude operation. By use of the stereo vision and gesture control combined remote operation method and system, the personal safety of a high-altitude operator can be guaranteed, three-dimensional perception of the operator for a site scene during remote operation is improved, and the interaction nature and immersion of the remote operation are enhanced.

The invention discloses a horizontally-movable and vertical lifting type high-throughput measuring system and a horizontally-movable and vertical lifting type high-throughput measuring method for plant phenotypes. The system comprises an automatic mechanical device capable of horizontally moving and vertically lifting, an ultrasonic meter, an RGB camera, a spectrometer, an NDVI sensor and a Beidoulocator which are integrally arranged on an anti-shake cloud deck, a distance measuring sensor, a data processing and transmitting module and a server, wherein the ultrasonic meter, the RGB camera, the spectrometer, the NDVI sensor and the Beidou locator are arranged on the anti-shake cloud deck and are respectively connected with the data processing and transmitting module; the data processing and transmitting module is connected with the server through optical fibers. According to the horizontally-movable and vertical lifting type high-throughput measuring system and the horizontally-movable and vertical lifting type high-throughput measuring method disclosed by the invention, growth height of crops, a visible light image, a multispectral image, a vegetation difference index and growthgeographic location information can be synchronously acquired in real time and acquired data is transmitted by the optical fibers; multisource phenotypic features of plants at all growth periods are synchronously measured at high throughput; meanwhile, measurement strength is also reduced and measurement accuracy and efficiency are improved.

The invention discloses an anesthesia and consciousness depth monitoring system and a monitoring method. The system comprises an anesthesia depth sensor and a cerebral blood oxygen saturation sensor which are worn on the head, and a main controller which is connected with the two sensors through cables. Wherein the main controller comprises an electroencephalogram signal acquisition module, an infrared light transceiving module, a central processing unit, a display output module and a user input module; the central processing unit is used for sending a synchronous instruction acquisition signal to the electroencephalogram signal acquisition module and the infrared light transceiving module; receiving the electroencephalogram acquisition data processed by the electroencephalogram signal acquisition module and the cerebral blood oxygen acquisition data processed by the infrared light transceiving module; and the central processing unit performs synchronous data processing on the electroencephalogram acquisition data and the cerebral blood oxygen acquisition data to obtain electroencephalogram and cerebral blood oxygen saturation synchronous data, and displays a numerical value or a trend curve on the display output module. Electroencephalogram and cerebral blood oxygen collection is synchronized, and synchronous collection and analysis and real-time extraction of related indexesare truly achieved.

The invention relates to a distributed variable sampling rate synchronous data acquisition device based on an Ethernet. The device comprises a machine case and a bottom plate. The device is characterized by further comprising a power supply module, 1-15 synchronous data acquisition modules and an Ethernet switch which are integrated on the bottom plate. The input end of the power supply module is connected with an external 220V AC power supply. The output end of the power supply module is respectively connected with the synchronous data acquisition modules and the Ethernet switch. All the synchronous data acquisition modules share the same difference sampling clock signal to perform data communication with a far-end host via the Ethernet switch. Synchronous acquisition of as many as 180 paths of analog signals can be met, and configuration is flexible and scalable performance is high with minimum synchronous error of all the synchronous data acquisition modules so that a strictly synchronous coherent relationship can be maintained. Requirements of multichannel, distributed, variable sampling rate and synchronous data acquisition are met so that the device is particularly suitable for long-time, high-capacity, multi-input and full-isolation data acquisition occasions.

The invention relates to an underground multi-node signal acquisition synchronous error correction device. A delay measuring unit of the device simulates a PPS (pulse per second) and sends a PPS signal to pulse receiving and forwarding modules at acquisition nodes of a seismic signal acquisition system through a logging cable, a telemetering unit and an interstage cable, and measures time consumed by sending the PPS to the acquisition nodes and passing back to the ground; and a delay correction unit calculates a delay correction amount according to each pulse measuring time, and seismic signal data collected by each acquisition node are delayed for corresponding time according to each delay correction amount and are the repackaged into independent data. The underground multi-node signal acquisition synchronous error correction device provided by the invention can accurately measure and correct transmission delays of all nodes, breaks through the limitation to the number of nodes, solves the problem that cable delay reaches up to several hundred of microseconds, and can reduce a synchronous error of seismic signals collected by multiple nodes to a nanometer scale, thereby realizing high-precision synchronous acquisition of all nodes in a system.

The invention discloses an electric power measure device management system. The electric power measure device management system comprises a collection control layer, a communication layer, a business layer, and a comprehensive application layer. The electric power measure device management system changes limit of multiple people participation required in a traditional working mode, thereby effectively lowering an error rate, improving working efficiency at the same time, and matching with the improved management method. Automatic degree of storage management is greatly improved by combining with application of radio frequency identification (RFID) technology, so that the whole working procedure from entering a warehouse to ex-warehouse does not need to be operated and interfered by hands on the normal conditions, and therefore not only manpower is saved, but also working efficiency and accuracy are both greatly improved simultaneously, by combining with the application of the RFID technology, collection and obtainment of information are conducted by the system, and synchronization of both the information and the meter material object is realized. The electric power measure device management system and the management method have the advantages of being capable of not only simplifying the whole collection and obtainment procedure, but also greatly improving efficiency and accuracy.

The invention discloses a real-time synchronous measuring instrument and method of spectrum response of a photovoltaic material, belonging to the technical field of measurement. The real-time synchronous measuring instrument of spectrum response of the photovoltaic material comprises a computer with software, a PXI (PCI eXtensions for instrumentation) platform, a monochromator provided with a stepping motor, an illuminometer, a PXI6534 data acquisition card and a PXI4072 data acquisition card, wherein the PXI platform and the illuminometer are connected with the computer, the PXI6534 data acquisition card and the PXI4072 data acquisition card are arranged on the PXI platform, the monochromator is connected with the PXI6534 data acquisition card, and the PXI4072 data acquisition card is connected with a silicon photocell. During the measurement, a light source mercury lamp and a sodium lamp with known spectrum are used, the step number of the stepping motor is recorded when the monochromator separates out light with specific wavelength, and then a calibration curve of the wavelength and the step number of the stepping motor is drawn by utilizing a polynomial fitting method; and when a xenon lamp is used instead of the mercury lamp and the sodium lamp, the stepping motor rotates, a program obtains the congruent relationship between the corresponding spectrum line and the wavelength according to the calibration curve, the PXI4072 data acquisition card acquires the real-time short circuit current, the illuminometer collects the information of irradiance, and a triggering signal is used for controlling the xenon lamp to be turned on and the short circuit current and the irradiance to be acquired highly synchronously.

The invention provides a processing method, device and system for monitoring data display and a storage medium, the method is applied to a server side, and the method comprises the following steps: receiving a first subscription request sent by a subscription side, the first subscription request comprising an identifier of the subscription side and a type of monitoring index data, wherein the monitoring index data is data obtained by monitoring the service operation condition of the service system, and the subscription side is in communication connection with the server side in a long connection mode; sending a second subscription request to the memory server, wherein the second subscription request comprises the identifier of the server and the type of the monitoring index data, and the server is in communication connection with the memory server; receiving monitoring index data pushed by the memory server; and pushing the monitoring index data to the subscription end. According to the method, the effects of collecting and displaying the monitoring index data synchronously and displaying the monitoring index data in real time are achieved.

The invention discloses a shape-memory alloy thermal-mechanical coupled multiaxial cyclic deformation experimental device. The shape-memory alloy thermal-mechanical coupled multiaxial cyclic deformation experimental device comprises an MTS tester, an MTS controller, an optical measurement strain measuring device, a first temperature controller, a temperature sensor and a direct-current heating power supply, wherein the MTS controller is connected with the MTS tester; the optical measurement strain measuring device is connected with the MTS controller; the temperature controller is used for measuring the temperature of an MTS tester test sample; the first temperature controller is connected with the MTS controller; a positive electrode and a negative electrode of the direct-current heating power supply are connected with the two ends of the MTS tester test sample; a first relay is arranged between the direct-current heating power supply and the MTS tester test sample; the first relay is connected with the first temperature controller; a cooling module is further provided; the cooling module is connected with the first temperature controller; the first temperature controller is connected with the temperature sensor and the control device simultaneously; the MTS controller is connected with the control device. By adopting the shape-memory alloy thermal-mechanical coupled multiaxial cyclic deformation experimental device, the integrity of the test sample is effectively ensured, and required data can be acquired synchronously.

The invention discloses a high-speed high-definition image collecting and storing device for a biological microscope. The high-peed high-definition image collecting and storing device comprises digital cameras, a main control computer, slaves, a trigger controller and an exchanger, the main control computer and each slave are connected with one digital camera respectively, a 1394 port of the main control computer is connected with a 1394 port of one digital camera, a 1394 port of each slave is respectively connected with the 1394 port of one digital camera, an RJ45 internet port of each slave is connected with an RJ45 internet port of the exchanger, the RJ45 internet port of the exchanger is connected with an RJ45 internet port of the main control computer, a universal serial bus (USB) port of the main control computer is connected with a RS232 serial port of the trigger controller, and an external trigger output port of the trigger controller is respectively connected with an external trigger port of each digital camera. By means of the collecting and storing device, two or more biological microscope digital cameras can be supported to simultaneously take photos, and high-definition uncompressed images can be obtained in a high-speed and stable mode.

The invention discloses a measuring system of relative position of a laser mode and an aperture and a measuring method thereof, and mainly solves the disadvantage of low measurement precision of present systems. The whole system comprises a laser (1), an optical system (15), a resonator to be measured (6), a spectroscope (7), a total reflective mirror (8), an image acquisition and data acquisition system (16), a main control computer (13), and a piezoelectric ceramics driver (14); the piezoelectric ceramics driver drives the laser to output laser; the optical system is adjusted to allow the laser outputted by the laser to be coupled to the resonator to be measured; the laser outputted by the resonator to be measured are divided into two paths by the spectroscope and the total reflective mirror; the two-path laser is collected and transmitted to the main control computer by the image acquisition and data acquisition system; the main control computer processes images of the aperture andthe laser mode by using a high-precision image processing algorithm, and calculates the central coordinates of the aperture and the laser mode respectively. The invention has the advantages of synchronous CCD camera acquisition and sawtooth wave signals, and high measurement precision, and is applicable to the high-precision automatic regulation of the laser.

The invention discloses an actual breaking grounding condition test loop and fault simulation platform for a distribution network and a test method thereof. The simulation platform comprises a single-phase actual breaking condition analog loop, a diversified control system and information acquisition system, a grounding medium analog loop and a grounding medium switching platform. The single-phaseactual breaking condition analog loop includes an overhead line breaking body, a breaking loop support element, and a breaking mechanical switch. The diversified control system and information acquisition system being a secondary acquisition and control loop includes a measurement unit, a fault high-precision recording device, a fast camera device, and a switch control and data display platform.According to the invention, for the novel in-service device and technology for single-phase breaking grounding fault, verification of function effects like fault determination, arc suppression and compensation of different technologies is realized.

The invention discloses a distributed type synchronous underwater sound collection and real-time display analysis system. The distributed type synchronous underwater sound collection and real-time display analysis system comprises a main measuring platform and at least one branch measuring platform. The main measuring platform comprises a display control terminal and a plurality of underwater sound data collection units, and the underwater sound data collection units are in wired network communication with the display control terminal. Each branch measuring platform comprises a communication control node and a plurality of underwater sound data collection units, and the underwater sound data collection units are in wired network communication with the communication control nodes. The underwater sound data collection units of the main measuring platform and the branch measuring platforms are used for collecting underwater sound data synchronously in real time. The communication control nodes are communicated with the display control terminal wirelessly. The underwater sound data collection units can achieve synchronous collection, and collected underwater sound data are transmitted to the display control terminal in real time. The distributed type synchronous underwater sound collection and real-time display analysis system can be used for real-time underwater sound monitoring in a complex sound field environment, and capabilities of tracking and monitoring underwater objects can be improved.

The invention relates to an integrated multifunctional deep sea water body sampling probe, and belongs to the technical field of deep sea sampling. The sampling probe comprises an installing base anda detection sampling unit, wherein communication holes penetrating through the front and back end surfaces of the installing base, and a lateral connection hole penetrating from the side surface of the installing base to a position communicating with the communication holes are formed in the installing base; the detection sampling unit comprises a sampling pipe, a filtering head, a temperature detection sensor, a chemical parameter sampling sensor and a heat conduction protection sleeve; the filtering head is arranged on the inlet end of the sampling pipe in a sleeving way; the temperature detection sensor and the chemical parameter sampling sensor are arranged in the sampling pipe in a sleeving way; the heat conduction protection sleeve is arranged outside the temperature detection sensorin a watertight and sleeving way; the outlet end of the sampling pipe is arranged in the inlet end of the communication holes in a watertight and sleeved way; the outlet end of the heat conduction protection sleeve extends into the communication holes in a watertight way; a temperature signal wire extends out of the communication holes; a signal wire of the chemical parameter sampling sensor passes through the communication holes in a watertight way; and the water inlet end of a sample conveying pipe is connected in the outlet end of the lateral connection hole in a watertight and sleeved way. The sampling probe can be used for sequence sampling, and can be widely applied to the field of ocean exploration.

A low delay coding / decoding device of digital video signal consists of collection-coder for collecting video image and for coding said image, decoding-display for decoding coded data and for displaying decoded video image. It is featured as transmitting data by said coder and said display through network sender and network device as well as network receiver.

The invention relates to an anti-interference online monitoring method for partial discharge of a high-voltage transformer bushing. A high-frequency current sensor is additionally arranged at a grounding wire of an iron core of a transformer besides a grounding high-frequency current sensor of an end screen of the transformer, two paths of signals can be synchronously acquired by the system, and through a time domain comparison algorithm of the two paths of signals, the partial discharge signal of the transformer can be effectively filtered, only the partial discharge signal of the bushing is reserved, and the purpose of monitoring the partial discharge of the high-voltage transformer bushing is achieved.

The invention provides a finger multi-mode character synchronous acquisition system. The system includes a finger epidermal fingerprint acquisition module (1000), a finger OCT information acquisitionmodule (1100), a support module (1200), a finger OAG information processing module (1300) and a computer (1400). The support module (1200) is used to achieve data interface expansion so as to facilitate data transmission and power output between the computer and each module; the finger epidermal fingerprint acquisition module (1000) is used to achieve finger epidermal fingerprint information acquisition; the finger OCT information acquisition module (1100) is used to collect finger OCT information; the finger OAG information processing module (1300) is used to convert OCT information into OAGinformation; and the computer (1400) is used to further process the collected information. By using of the finger multi-mode character synchronous acquisition system, people can obtain the informationof finger epidermal fingerprints, finger dermal fingerprints and sweat glands and finger subcutaneous blood velocity.