58 results about "Mega-" patented technology

A method and system for combining nodes in a file used for loading a node graph. The method includes defining a first node in the file as a mega-node of the file. The XML file includes a plurality of nodes arranged in parent/child relationships. The method proceeds by identifying a base node type for basing the mega-node upon.

The invention discloses a height and area measurement method based on a monocular camera three-dimensional distance measurement model. The height and area measurement method comprises the following steps: obtaining the focal length of a camera through monocular camera calibration, wherein the unit of the obtained focal length is the number of pixel points on a unit distance and is in proportion to the imaging size of a CCD plate; modeling the monocular camera three-dimensional distance measurement model and calculating the distance between an object and the camera according to the modeled model; further realizing height and area measurement of the object according to the calculated distance through the model. The height and area measurement method based on the monocular camera three-dimensional distance measurement model requires less priori knowledge and does not need the troublesome process of requiring feature point matching of binocular distance measurement. On the other hand, the height and area measurement method is excellent in instantaneity, and when the 3-mega-pixel camera is adopted and the distance measurement range is within 50 m, the error rate is basically controlled within 5%. After accurately acquiring the angle of depression and focal length of the camera as well as other priori knowledge, the height and area measurement method can be completely applicable to the application fields of highway front obstacle detection and basic identification.

The invention relates to a wind turbine blade with a lightning protection system, where the blade comprises a shell body made of a composite material and comprises a longitudinal direction with a root end and a tip end. The blade further comprises a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The lightning protection system comprises at least one lightning receptor arranged freely accessible in or on the shell unit surface at or in the immediate vicinity of the tip of the blade. The lightning protection system further comprises a lightning down conductor made of electrically conductive material extending within the shell body from the lightning receptor to the root end of the blade. The lightning receptor and the lightning down conductor are electrically connected. The shell body comprises at least a first conductive layer extending along at least a longitudinal part of the lightning down conductor in a transverse distance therefrom. The first conductive layer is electrically isolated from the lightning down conductor and from the lightning receptor, and has a sheet resistance in the range 1-5 Mega Ohm per square.

An interactive system of managed data in network device comprises main control card and interface card. It is featured as setting CUP and physical layer interface chip on two said cards, connecting two said cards to rear panel through Ethernet GE interface of 1000 mega for achieving data interacting between main control card and physical interface chip on interface card physical layer by utilizing rear panel wiring, setting GE interface as optical interface mode for realizing interconnection of main control card to interface card by using SerDes signal wire on rear panel.

A method for enhancement of cell growth, the method including the steps of (a) providing a system including: (i) an ultrasound transducer; (ii) an interface medium for promoting ultrasound transmission, and (iii) at least a first type of cells, disposed within a growth medium; (b) producing micro-vibrations by means of the ultrasound transducer, and (c) applying the micro-vibrations to the first group of cells, so as to promote growth of the cells, wherein the micro-vibrations have a frequency within a range of 20 kilo Hz to 4 mega Hz.

A method of state estimation is provided, including: (a) acquiring a plurality of positive sequence voltage and current phasor measurements; (b) designating a reference positive sequence voltage phasor measurement from the acquired phasor measurements; (c) correcting the acquired phasor measurements to account for the reference phasor measurement; (d) calculating complex power having a real component and an imaginary component, using the corrected positive sequence voltage and current phasor measurement; (e) using the real component of said complex power as a calculated mega-watt and the imaginary component of the complex power as a calculated mega-volt-ampere; and (f) using the mega-watt and mega volt-ampere calculations in a state estimation algorithm.

A computer-implemented method for layered storage of enterprise data comprises receiving from one or more virtual machines data blocks; time-based grouping the data blocks into data containers; dividing each data container in X fixed length mega-blocks; for each data container applying erasure encoding to the X fixed length mega-blocks to thereby generate Y fixed length mega-blocks with redundant data, Y being larger than X; and distributed storing the Y fixed length mega-blocks across one or multiple backend storage systems.

The invention applies to the 1000 mega kilowatt nuclear power security and protection field, and provides a video review alarm method and a video review alarm device for illegal invasion of a nuclear power plant. The video review alarm method for the illegal invasion of the nuclear power plant includes: generating alarm signals according to trigger information; integrating and uploading the alarm signals; downloading the alarm signals after being integrated, verifying validity of the alarm signals, and extracting alarm position information; invoking a camera unit on site to collect and return field image information, and simultaneously sending out an alarm prompt signal; displaying the returned image information so as to achieve a video review; sending an alarm according to the alarm prompt signal, and simultaneously recording the displayed image information. The video review alarm method and the video review alarm device for the illegal invasion of the nuclear power plant generate the alarm signals when the illegal invasion occurs, extract the field alarm position information from the integrated alarm signals through a command center, and then invoke the camera unit to collect field images, enable the field images to automatically pop on a monitor so as to timely know truth and severity of an emergency, and simultaneously send out an audible and visual alarm signal, and furthermore record video of the videos which automatically pop out of an alarm region when the audible and visual alarm signal is sent out.

A two-range switching potential difference meter with four measuring discs and applying distributary branch is composed of two ranges and four measuring discs as 20x 5 omega, 10x 0.55 omega, 9x 1.1 o mega and 10x 0.11 omega. It features that all measuring resistance are directly connected by conducting wire to exclude contact resistance and variation from measuring-stepping switch out of measuring result and integer power of one digit number multiplying by ten is used as value of resistance being used for range changeover.

The invention provides an inter-heterogeneous-processor SPI high speed two-way peer-to-peer data communication system. The inter-heterogeneous-processor SPI high speed two-way peer-to-peer data communication system comprises an SPI bus and communication nodes, wherein processors of at least two communication nodes are heterogeneous; a node main occupation signal line, a node main output slave input signal line, a node main input slave output signal line, a node serial shift clock signal line and a node slave gate signal line of the communication nodes are mounted to a network main occupation signal line, a network main output slave input signal line, a network main input slave output signal line, a network serial shift clock signal line and a network main occupation signal line of the SPI bus respectively. The inter-heterogeneous-processor SPI high speed two-way peer-to-peer data communication system achieves the interconnection of the heterogeneous processors and the establishment of a heterogeneous processor network of dozens of mega based on the SPI bus, and improves the speed of multi-machine two-way peer-to-peer data communication substantially.

The invention discloses a dynamicand static characteristic collaborative analysis on-line monitoring method for a mega-kilowatt ultra-supercritical unit to solve the problems of the mega-kilowatt ultra-supercritical unit that process variables are numerous and controller regulation is complex. Typical variables are used for analyzing and extracting time series related information of process data.The slow feature analysis algorithm is combined. Time series related information and dynamic and static information of controller regulation relative to the running state are extracted. The dynamicandstatic online monitoring index is established to conduct process monitoring to the mega-kilowatt ultra-supercritical unit. The method can fully reflect the regulation of a closed-loop system, and cangreatly improve subsequent process online monitoring performance. Understanding of complex processes characteristics can be facilitated. Reliability and credibility of mega-kilowatt ultra-supercritical unit online process monitoring are improved. A thermal power plant is assisted to make an accurate judgment on the operating state of the unit and find faults timely. Safe and reliable operation ofthe mega-kilowatt ultra-supercritical unit is guaranteed.

The invention relates to the technical field of mega-kilowatt class nuclear power station detection, and discloses a method for reducing fault rates of nuclear power units, a nuclear power unit ad a computer readable storage medium. The method comprises the following steps of: screening a key sensitive device; determining a category of the key sensitive device and a key sensitive part in the key sensitive device; and finally obtaining a maintenance scheme for the key sensitive part according to a failure mode analysis result of the key sensitive part and the category of the key sensitive device, to which the key sensitive part belongs. According to the method, devices in the nuclear power units are screened, and maintenance schemes are only customized for the devices causing stop and shutdown and parts thereof, so that the fault rates of the nuclear power units can be greatly reduced via consuming relatively few resources.

A method for allocating transmission channels to devices configured to communicate short data packets to a diversity of non geostationary satellites is disclosed hereby. The method suggests a dynamic cellular partitioning of the earth surface, based on the smallest intersections of overlapping satellite service areas (“footprints”), defined as mega-cells, and reusing channels in different mega-cells. In addition, a transmission cycle is defined and divided to time slots, synchronized at each device by GPS timing signals, and mega-cells served by more satellites are allocated with fewer time slots, in order to increase the chance of transmitters placed in mega-cells served by fewer satellites to be detected. Further, each mega-cell is divided to cells, and different channels and time slots are allocated to each cell, from those allocated to the corresponding mega-cell. Consequently, collision of transmissions from different mega-cells is reduced, and collision of transmissions from different cells in a mega-cell is avoided.

The invention relates to a space camera, especially to a CMOS all-in-one digital camera with high performance, which comprises a CMOS imaging module, a flash memory memory module, an optical fiber and a kilo mega network card high speed data transmission, and also comprises a real-time image compression module, an image data fusion module, an image error correction encoder, a flash memory controller, an image error correction encoder, a kilo mega network controlling and an optical fiber controlling. The camera is convenient to analyze photoed image data by GPS high precision location/time, and saves storage space of the flash memory by compressing data, and guarantees the correctness of stored images by the image data error correction encoder, and improves anti-shocking ability of the system by using the flash memory as the storage media, and provides two data playback transmission modes of the kilo mega network card and the optical fiber in order for communicating between the device and the host computer. The space camera has the advantages of realizing continual high frame frequency image real-time recording and meanwhile realizing error correction encoding.