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34results about How to "Simple software" patented technology

Bioelectric measurement apparatus for general medical practitioners

The invention discloses a bioelectricity measurement apparatus for general medical practitioners. The bioelectricity measurement apparatus comprises electrodes (1), a signal conditioning circuit (2), a data acquisition card (3), an apparatus driver (4), panel program (5), application program (6), a virtual apparatus development platform (7), a portable PC (8), electronic medical records (9) and bioelectricity measurement files (10). The bioelectricity measurement apparatus is characterized in that the electrodes (1) are mounted at to-be-measured bioelectricity parts of a human body; weak bioelectricity signals are amplified by the signal conditioning circuit (2), and amplified bioelectricity signals are transmitted to the data acquisition card (3); the apparatus driver (4), the panel program (5), the application program (6) and the virtual apparatus development platform (7) software are installed on the portable PC (8), and operation interface of the bioelectricity measurement apparatus for operating the whole apparatus is developed on the portable PC (8); meanwhile, bioelectricity measurement records are automatically generated and are converted into the medical records (9) and the bioelectricity measurement files (10) according to measurement results. The bioelectricity measurement apparatus implements synchronous measurement of various bioelectricities of the human body; on one apparatus, measurement of electroencephalography, electromyography, electrooculography (including retina electrography and nystagmus) and electrogastrography is synchronously achieved.
Owner:NANJING UNIV OF SCI & TECH

Double close-loop control method for grid-connected double feed type wind generator and device adopting same

The invention discloses a double close-loop control method for a grid-connected double feed type wind generator. The method comprises the steps of acquisition, coordinate transformation, generator rotor current inner ring control, and generator stator voltage outer ring control, wherein the acquisition step refers to acquiring the three-phase voltage of a generator stator, the three phase current of a generator stator, the voltage of a power network, the current of a generator rotor, and the rotational speed of the generator rotor; the coordinate transformation step refers to converting the acquired parameters into a synchronous rotational coordinate system through Clark conversion and Park conversion; the generator rotor current inner ring control step refers to inputting the generator rotor current into a proportion integrator and output the components d and q of the voltage of the generator rotor to perform excitation control to the grid-connected double feed type wind generator; and the generator stator voltage outer ring control step refers to inputting the voltage of the generator stator into the proportion integrator, and outputting the components d and q of the voltage of the generator stator to perform excitation control to the grid-connected double feed type wind generator. The double close-loop control to the grid-connected double feed type wind generator can be realized through utilizing the generator rotor current inner ring control and the generator stator voltage outer ring control.
Owner:SEARI ELECTRIC TECH
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