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 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 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 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 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 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 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 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.