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137results about How to "Large data capacity" patented technology

Method for performing large data volume communication between Modbus master station and Modbus slave station

Disclosed is a method for performing large data volume communication between a Modbus master station and a Modbus slave station. The method includes steps that, step one, the Modbus master station sends a Modbus request message; step two, the Modbus slave station receives the Modbus request message and extracts data from an internal storage; step three, the Modbus slave station segments the data and packages the data into a Modbus response message to form segmentation response messages, and the Modbus slave station sequentially and continuously sends the segmentation response messages; step four, the Modbus master station receives the segmentation response messages and judges whether a segmentation frame is wrong or lost, a step five is executed if the segmentation frame is wrong or lost, and otherwise, a step seven is executed; step five, the Modbus master station calculates addresses and length of effective data in the wrong or lost segmentation frame according to a segmentation protocol and resends request messages for the effective data; step six, the Modbus slave station returns a response message; and step seven, the data communication is finished. The method for performing large data volume communication between the Modbus master station and the Modbus slave station supports larger data volumes and is high in communication efficiency and reliability and small in error overhead.
Owner:哈尔滨工大正元信息技术有限公司

Dual-polarization three-beam antenna and feed network device thereof

The invention discloses a dual-polarization three-beam antenna and a feed network device thereof. The dual-polarization three-beam antenna comprises a metal substrate, at least four rows of antenna arrays, first polarization power dividers, second polarization powder dividers, a first polarization Butler matrix feed network and a second polarization Butler matrix feed network, wherein the numbers of the first polarization power dividers and the second polarization power dividers are the same with the number of the antenna arrays, each polarization Butler matrix feed network comprises a Butler matrix and a power divider, and the Butler matrix comprises a first electric bridge, a second electric bridge, a third electric bridge, a first phase shifter and a second phase shifter. The antenna structure can form three fixedly-oriented dual-polarization wave beams in a horizontal direction and form a fixedly-oriented dual-polarization wave beam in a vertical direction, an overlapping region among the three wave beams in the horizontal direction is small, the number of device RRU can be increased, and thus, the data capacity is increased. In the dual-polarization three-beam antenna, the data capacity of the antenna is increased, the dual-polarization three-beam antenna has the advantages of good interference resistant effects, stable performance, simplicity in structure and light weight, and is easy to install, the cost can be effectively reduced, and the demand of a stadium or a large-area coverage region is met.
Owner:TONGYU COMM INC

Method for drawing exploratory point planar graph on basis of Excel

ActiveCN102722616AOmit generationOmit the calling linkSpecial data processing applicationsComputer Aided DesignData capacity
The invention relates to a method for drawing an exploratory point planar graph on the basis of the Excel. The method comprises the following steps of: 1, setting an Excel template file, i.e. setting a corresponding worksheet, wherein the worksheet at least comprises a header, a column number acquisition region, a CAD (Computer Aided Design) batch command generating region for expressing graph blocks and characters of different exploration holes, a hole coordinate input regions of the exploration holes and an element input region; 2, setting a CAD template file, including steps of setting corresponding drawing layers and defining the graph blocks and graph block names as per the elements, and programming a small program of 'numbering and coordinate extracting.dvb'; and 3, by loading the small program of 'numbering and coordinate extracting. dvb', generating a corresponding Excel table, acquiring the coordinates of exploratory points so as to obtain the worksheet, starting a CAD batch command and drawing the exploratory point planar graph. The method has the advantages that the method is simple, is easy to operate, is flexible and changeful, has strong adaptability, is convenient to carry out batch regulation and modification and has large data capacity; the time of generating the exploratory point layout plan in the investigation project is greatly shortened; and the working efficiency is improved.
Owner:CHEM IND GEOTECHN ENG

Agricultural irrigation water conservancy monitoring system

The invention provides an agricultural irrigation water conservancy monitoring system. A radio frequency card machine well irrigation control subsystem is used for configuring a management machine charging module, a machine well metering radio frequency card charging control box and radio frequency cards. The management machine charging module provides a recharging port for the radio frequency cards; the machine well metering radio frequency card charging control box is arranged close to a machine well; the radio frequency cards are distributed to each peasant household in need of irrigation;the peasant households use the machine well for taking water on the machine well metering radio frequency card charging control box for irrigation on the basis of the recharged radio frequency cards,and a radio frequency controller acquires a charging mode, preset by an agricultural irrigation monitoring server, for the water and power consumption of the machine well, and on the basis of the current preset charging mode for the water and power consumption of the machine well, the machine well metering radio frequency card charging control box executes a settlement mode on the radio frequencycards. Hydrological control is achieved, water conservation, planned water use and water use monitoring during agricultural irrigation are promoted, and waterlogging prevention, drought resistance, scientific water use and unified management and optimized allocation of water resources are achieved. The water conservancy development is promoted, the management level of agricultural modernization isimproved, and water-saving irrigation is realized.
Owner:WATER RESOURCES RES INST OF SHANDONG PROVINCE +1

Variable frame structure telemetry method based on high capacity multiplex storage technology

ActiveCN103593959ALarge data capacityOvercoming the Limitations of Channel ExpansionError preventionTransmission systemsElectricityData stream
A variable frame structure telemetry method based on a high capacity multiplex storage technology comprises four steps of signal transformation; data collection and coding, multiplex storage and framing output, the signal transformation includes transformation from a physical quantity to an electric quantity and transformation from an electrical signal to an electrical signal, the transformation from the physical quantity to the electric quantity is realized by vibration, shock, overload, noise, temperature and pressure sensors, the transformation from the electrical signal to the electrical signal is realized by an electrical signal converter; the data collection and coding completes signal collection and coding to realize transformation from an analog quantity to a digital quantity; the multiplex storage step multiplexes data streams outputted by multiple data collection and coding devices to form one only data stream and realize data storage; the framing output is as follows: a multiplex storage device realizes variable frame format output by control of a control signal. The variable frame structure telemetry method has high flexibility, can meet high e capacity and high bit rate telemetry demands, and can adapt to different measurement and control variation.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

Three-dimensional simulation model interactive-use network platform system attached with instant message

The invention discloses a three-dimensional simulation model interactive-use network platform system attached with an instant message. The network platform system comprises the following part: 1) a simulation live-action full-scale three-dimensional interactive-use network platform system is built; 2) a three-dimensional live-action full-scale simulation model and a scene database are built; 3) the network platform system conducts calling and manuscript revision corresponds to the three-dimensional live-action full-scale simulation model and scenes in the database; 4) personal users, designers and manufacturers in the network platform system can collect, send and interactively use all the simulation models and scenes in the database; 5) the attached message of the three-dimensional simulation models is updated instantly through a PC or the mobile terminal; 6) the three-dimensional interactive network platform system further realizes the form of three-dimensional navigating; and 7) the personal users in the network platform system can collect the models or the scenes to its own space. The three-dimensional simulation model interactive-use network platform system attached with the instant message does not need reloading 3D models before map shading, saves time, and can draw a decoration scheme effect drawing without the need of 3D software learning.
Owner:刘鹏

Experiment teaching auxiliary management method

The present invention discloses an experimental teaching auxiliary management method, which is characterized in that the present invention is provided with at least one experimental signal management module and a presupposition experimental answer database microcomputer which is connected with the experimental signal management module, a signal collecting probe experiment signal processing module which is arranged on an input end correspondingly arranged close to each experimental facility processes the collected signal, and then transmits the collected signal after being deposing to a wireless transceiver circuit of an experiment end for sending, the input end of an experiment signal management module is provided with a wireless transceiver circuit of a management end, the received signal is transmitted to the experimental signal management module to process, and then is input to the microcomputer, which is compared with the correct answer in the experimental answer database, thus judging whether the experiment data is right, the experiment signal processing module sets up the channel serial number of each experimental facility by setting up a channel serial number generating device, the microcomputer judges the experimental facility corresponding to the received data signal through channel serial number, and the present invention has the advantages of collecting and managing the waveform of any output point of experimental waveform in the experimental facility in a real time way.
Owner:NINGBO UNIV
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