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366results about How to "No burden" patented technology

Optimized video data coding method based on boundary adaptive transform

The invention provides an optimized video data coding method based on boundary adaptive transform. The method mainly comprises steps: according to the existing DCT (Discrete Cosine Transform) matrix for video coding, a new transform matrix is generated, the new transform matrix and the existing DST (Discrete Sine Transform)/DCT matrix are combined into a new transform matrix set; according to a prediction mode, the size of a transform unit, and the relationship between the boundary information of a transform unit and the boundary information of a prediction unit, a group of transform matrixes is selected from the new transform matrix set; and by using the group of new transform matrixes, inputted video data are transformed, and a coding stream is generated. The method of the invention makes full use of distribution characteristics of residual matrixes after inter-frame prediction, and based on the boundary information of the prediction unit and the transform unit, a different transform matrix is adopted for a different boundary characteristic to carry out transform. The optimized method can select a more efficient transform matrix for transform in a targeted mode according to the characteristics of residuals after inter-frame prediction, and the coding efficiency is thus improved.
Owner:PEKING UNIV

Designing method for guidance law applicable to vertical recovery phase of rocket

The invention relates to a designing method for a guidance law applicable to the vertical recovery phase of a rocket. The designing method comprises the following steps: acquiring the full-distance standard trajectory of the rocket; according to the full-distance standard trajectory, acquiring the latitude and longitude of a target point, the motion parameters of the rocket at the starting point of an aerodynamic deceleration phase, and the latitude and longitude of a point below the rocket, and constructing an auxiliary coordinate system; based on the auxiliary coordinate system, additionallysetting terminal angular constraints on the basis of a proportional guidance process so as to obtain a biased proportional guidance law; and applying the biased proportional guidance law in the aerodynamic deceleration phase and applying the biased proportional guidance law with an additional main power deceleration algorithm in a vertical descending phase. The improved biased proportional guidance method in the invention can effectively solve problems in guidance control under the condition of multiple constraints by location, velocity and attitude during rocket recovery; the guidance law for a vertical landing phase employs aerodynamic deceleration and tail-phase short-time main-power deceleration, so no impact is exerted on the carrying capacity of the rocket in an in-orbit flying phase; and at the same time, proportional guidance has better adaptability to various non-guidance deviations.
Owner:BEIJING INST OF ASTRONAUTICAL SYST ENG +1

System and method for recognizing and monitoring exercising action through unbound radio frequency label

The invention provides a system and a method for recognizing and monitoring exercising action through an unbound radio frequency label. The system comprises a plurality of commercial passive RFID label, an antenna, a Reader, a CPU and a prompting unit; the CPU comprises a data processing unit and a data storing unit; the detected people or matter within the communication range of the label and the reader can be recognized without modifying any existing commercial device or extra hardware facilities; the method is simple to use, quick and effective, can monitor and supervise the exercising action of a user on real time and guide the user. With the adoption of the method, the action standardability can be recognized, and the exercising action of a human body can be recorded and monitored on real time; the standard action data of the user are acquired firstly; the feature wave configuration files are extracted through a plurality of filters and by the extraction algorithm; then the configuration files can be matched on real time through the DTW algorithm to recognize the user action when the user exercises; the test performed in an indoor and closed office building, the recognizing precision of the exercising action is up to 92%.
Owner:XI AN JIAOTONG UNIV

Vibration feedback and force feedback combined man-machine interaction finger, glove and method

The invention discloses a vibration feedback and force feedback combined man-machine interaction finger, glove and method and belongs to the technical field of man-machine interaction wearing. The data glove provided by the invention is fixed to the hand back of a user, it is ensured that the palm can freely expand and clench, a novel connecting rod mechanism is adopted, thus excessive burdens cannot be generated on the hand, and the flexibility of the finger can also not be influenced. Through combination of vibration feedback and force feedback methods, single sense organ paralysis caused bylong-time use by the user is avoided; the force feedback method adopting rope driving is safer than a method directly adopting a motor for driving, and vibration feedback generated by the vibration motor cannot oppress the hand because the motor is small in size; and the whole glove is designed in a non-full-covering mode, only the portion, needing to be stimulated, of the hand is covered, and thus resonant interaction is reduced. The whole vibration feedback and force feedback combined man-machine interaction glove is simple in structure, low in manufacturing cost, capable of being manufacturing through common 3D printing, and convenient to wear and popularize in user groups.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Organic paddy rice high-yield cultivation method

The invention relates to the field of agricultural cultivation, and relates to a paddy rice cultivation method. The method comprises the following steps: (1) paddy rice seeds are selected, and are subjected to seed soaking for 12-16h with a seed soaking liquid under a temperature of 35-37 DEG C; (2) a seedling-stage fertilizer is sprayed, and a seedling-stage substrate is applied; (2) when the seedlings reach a stage of 5-6 leaves, the seedlings are transplanted into a field spread with a cultivation base fertilizer; (4) when the paddy rice seedlings start tillering, a tillering fertilizer is applied; (5) when the paddy rice seedlings starts flowering, a flowering-stage fertilizer is applied; (6) when the paddy rice seedlings starts filling, a filling fertilizer is applied, and a foliar fertilizer is added; and (7) harvesting is carried out. The method provided by the invention is highly targeting. Targeting fertilization is carried out during various growth periods. With the treatment with the seed soaking liquid, a germination period can be shortened, paddy rice growth can be accelerated, paddy rice stress resistance can be improved, a period from germination to flowering can be shortened, and a flowering period and a fruiting period can be prolonged. During the tillering stage, tillering amount is increased with the tillering fertilizer. With the flowering-stage fertilizer applied during the flowering stage, pollination success rate can be improved. During the filling stage, with the filling fertilizer and the foliar fertilizer, filling rate is greatly improved, yield is improved, and paddy rice grain fullness is improved.
Owner:广德县新农民水稻种植专业合作社

Balance control system and method for high-capacity serial connected battery packs

The invention relates to a balance control system combining electricity compensation with resistance dissipation in an energy storage system. The balance control system comprises battery packs, an electricity compensation balance control portion and a dissipation balance control portion. The balance scheme and the control mode include that each unit battery corresponds to an electricity compensation balance circuit, and the electricity compensation balance is started when the voltage of each unit battery is low; and simultaneously, each unit battery is connected in parallel with a dissipation resistor, and when the voltage of the individual battery is high during charging, dissipation control switches are started to enable the batteries to discharge through serial connected resistors, so that the battery packs and a compensation power supply are protected. Compared with a pure resistor dissipative balance scheme, the balance control system has the advantages that only the balance resistors of the individual batteries with high voltages work, so that the heat can be ignored, and heat management loads can be added. Energy of the compensation power supply is fully used, thermal losses are small, the energy conversion efficiency of a management system is improved greatly, a plurality of batteries can be balanced simultaneously, the balancing speed is increased, and the balancing time is shortened.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

System and method for testing wind farm power control strategy

ActiveCN103605360AIncrease the probability of successful commissioningReduce hidden dangersElectric testing/monitoringFault toleranceClosed loop testing
The invention provides a system and method for testing a wind farm power control strategy. A wind farm power control strategy making module of the system comprises a network data receiving/transmitting module, a data analyzing module, a data-caching module, a data fault tolerance module, an active/reactive control module and a real-time data interaction module, wherein the network data receiving/transmitting module, the data analyzing module, the data-caching module, the data fault tolerance module, the active/reactive control module and the real-time data interaction module are connected in sequence. The output end of the data fault tolerance module is connected with the input end of the real-time data interaction module. Information interface is conducted between the wind farm power control strategy making module and a wind farm grid analog simulation module or an actual grid interface module through the network data receiving/transmitting module. According to the system and method for testing the wind farm power control strategy, wind farm operation information is received in real time, set power values of wind farm units and reactive-load compensation devices are sent to the corresponding wind turbine generator units and the corresponding reactive-load compensation devices in a wind farm at regular intervals according to the different power control strategies, finally a closed loop for testing the control performance of a wind farm active/reactive control system is formed, and the success rate of on-site putting into operation is improved.
Owner:STATE GRID CORP OF CHINA +2

SDN interchanger and controller dynamic registration method

The invention discloses an SDN interchanger and controller dynamic registration method. The SDN interchanger and controller dynamic registration method comprises the following steps that S1, an SDN is initialized, an external configuration module informs an interchange and n controllers to establish TCP connection, and main connection is established between the interchanger and one controller and auxiliary connection is established between the interchanger and other controllers according to the priority algorithm; S2, when the main connection becomes abnormal, the interchanger sends a registration application message to one of the other controllers randomly; S3, a certain controller of the other controllers returns a registration agreeing message to the interchanger, and then new main connection is established between the controller and the interchanger. According to the SDN interchanger and controller dynamic registration method, when a fault occurs, normal services of the interchanger are not affected, and the reliability of the SDN controllers is greatly improved; meanwhile, seamless and rapid switching can be achieved, load balancing of the controllers is achieved, the method is simple and effective, and the burden of the controller is prevented from being increased.
Owner:PHICOMM (SHANGHAI) CO LTD
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