359results about How to "Strong data processing ability" patented technology

This invention relates to whole digital buried arc welding varying wire feed control method, which adopts series three-loop control structure with inner one as current ring, second ring as rotary speed ring and outer ring as arc voltage ring with one adjustor in each ring for arc voltage, rotation speed and current. It adopts high speed digit signals processor as central control part to form whole digital DC servo motor control system whose all control strategies area realized by software and the hardware completes digital trigger function and signal process function.

The invention provides an authentication method, system and mobile terminal. The authentication method includes the steps that user registration information is received, and the user registration information comprises user identity information and a reference picture; user log-in information from the mobile terminal is received, and the user log-in information comprises user identity information and a verification picture; the reference picture in the corresponding user registration information is search for according to the user identity information in the user log-in information; the verification picture in the user log-in information is compared with the found reference picture in the corresponding user registration information; identity judgment is conducted, that is, whether the identity of a registration user is consistent with the identity of the log-in user or not is judged according to the picture comparison result, wherein the reference picture and the verification picture are one or more of a human face picture, a fingerprint picture and an eye iris picture.

The invention relates to the field of message processing, in particular to an equipment and a method for real-time compression for large-capability images and data based on the multi-digital signal processor (DSP) parallel processing. A multi-DSP parallel processing structure is adopted to complete the real-time compression for large-capability images and data; a field programmable gate array (FPGA) is chosen as a data-transformation element, and the DSP is used as a managing element according to the task allocation and data coupling mode; the image data output by a camera enter each DSP of a data compressor in parallel, and the FPGA is not processed basically. Code stream after being compressed by each DSP is output to the FPGA in parallel and is output serially after the FPGA makes parallel-serial conversion, so no coupling basically exists between every two DSPs. The equipment has the advantages of strong data processing ability, good parallel performance, high reliability and easy expansion. Besides being applied in a general occasion for real-time image compression, the equipment of the invent can be mainly applied in the occasions which have high image input-code speed for satellite remote sensing, high-altitude photography and the like and have special requirements in the aspects of the quality of reconstructing image, the reliability of the equipment, and the like.

The invention discloses a full-digital MEMS three-component geophone. The full-digital MEMS three-component geophone comprises a sealed waterproof shell, a control unit, a three-component wave detector, three signal conditioning circuits and three A / D converters, wherein the control unit is arranged in the sealed waterproof shell, the three-component wave detector is connected with the control unit and composed of three uniaxial MEMS sensors in an orthogonal mode, the three signal conditioning circuits are connected with the three uniaxial MEMS sensors in a one-to-one mode, and the three A / D converters are connected with the three signal conditioning circuits in a one-to-one mode through a multi-way simulation selector, and the three A / D converters are connected with the control unit. In addition, an inclination detection module and an inertia sensor are further connected to the control unit. By the adoption of the full-digital MEMS three-component geophone, the power supply internal management problems that in the prior art, a wave detector cannot consider posture method information and the multipurpose adaptability to the ground, logging and the like at the same time, cannot obtain internal temperature and humidity parameters in real time and is inefficient and high in power consumption are solved, and high practical value and research significance are achieved.