45results about How to "Avoid redundant data" patented technology

The invention provides a method and system for reducing redundant data blocks. The method includes encoding a first data block having a first length into a bitstream having a second length, transmitting the bitstream to a server device, and reducing redundant data blocks by decoding the first data block from a first plurality of data blocks and the bitstream where each block in the first plurality of data blocks has a length equal to the first length.

The invention provides a method for quickly obtaining a three-dimensional isosurface of a radar reflectivity data, which comprises following steps: normalizing a radar 3D scan data; constructing a hexahedral mesh of radar data points; and calculating the three-dimensional isosurface of the radar reflectivity data. According to the method for quickly obtaining a three-dimensional isosurface of a radar reflectivity data, the data of radar products can be well applied to 3D scenes by quickly obtaining three-dimensional isosurface of radar reflectivity data, which can provide effective decision-making for the reduction and prevention of meteorological disasters, and has good social and economic benefits; meanwhile, the response time of relevant departments to disasters can be shortened throughthe ability to quickly acquire the shape of rainfall clouds.

The invention provides a method for storing irregular fields, which comprises the following steps: creating a main table, and storing basic fields based on the same classification in the main table, wherein classification type fields and classification data storage fields used for storing the information of self-owned fields are further stored in the main table; creating a classification table, and storing the classification information in the classification table, wherein the sequences of the information of the self-owned fields in the classification data storage fields in the main table arefurther stored in the classification table; and creating an attribute table, and storing the attributes of all the classified self-owned fields in the attribute table. The invention can not only avoidthe problem of a large amount of redundant data caused by the data stored in a huge table, but also prevent a plurality of tables from being created, thereby avoiding the maintenance cost caused by aplurality of fragmentary table structures.

The invention discloses a portable microwave imaging system which comprises a handheld active scanner and an information processing terminal. The handheld active scanner comprises a radio frequency transceiver, a first attitude sensor, an on-off judgment device and a first wireless transceiving module; and the information processing terminal comprises an information processor and a second wireless transceiver module and is used for receiving return data of the scanner. In one instantaneous sampling process, the spatial attitude and echo signals of the scanner are received by the information processing terminal, real-time back projection image reconstruction is carried out, and the reconstructed image is accumulated on the previous image. According to the invention, the image is reconstructed through real-time back projection of the space coordinate and angle determined by the attitude sensor, the handheld scanner can be located at any position, the equipment limitation of traditional array imaging is broken, the use flexibility and coverage angle of the equipment are greatly improved, the hardware cost is reduced, real-time imaging can be satisfied, and the detection efficiency is improved.

The invention discloses a live telecast method applied to the peer to peer network. A network live telecast system comprises a CPU, a release source subsystem, P nodes and an SP server, the SP server receives compressed streaming media data of the release source subsystem via a reception data device, and the streaming media data is streaming data of network TV video signals and is played by a player. The multimedia data is downloaded and played adaptively aimed at different network conditions, smooth live telecast information can be provided for users when the network condition is relatively low, the reception end plays content data according to attribute data sent by the server, waiting time in live telecast of streaming media is reduced, and redundancy data generated by transmission is avoided.

The method for rapidly obtaining three-dimensional vector data of a vertical section plane of radar reflectivity data provided by the present invention comprises the following steps: normalization of radar three-dimensional scanning data; construction of a hexahedral grid of radar data points; construction of a vertical section plane; radar Calculation of the vertical section data of the reflectivity data; the present invention directly processes the data points detected by the radar by normalizing the scanning data of each layer of the radar, constructs a hexahedral grid, and then directly processes the section through the hexahedron, Quickly obtain vertical slices of radar reflectivity data. The whole process reduces the amount of calculation data and avoids redundant data, greatly improves the acquisition efficiency of the vertical section plane of radar reflectivity data, and can be easily applied to real-time 3D weather monitoring business.

The invention discloses a method for multi-factor automatic update of a road space network. According to the method, the limitation of global updating and manual updating is avoided, processing of only changed data is achieved, the goal of accurate and real-time dynamic updating is achieved, and a digital network model and a real network are kept consistent most efficiently. The method includes the steps of performing data preparation and pretreatment; matching changed road information with a to-be-updated network, and searching newly-increased roads and rebuilt roads; performing matching inspection on possibly matched line entities, such as inspection of four factors which are area overlaying ratio, directional included angle, Hausdorff distance and semantic consistency; performing reversal matching on an original road space network and the changed road information, and deleting abandoned road section data. According to the method, road space network update efficiency and accuracy areimproved, and the road space network automatic update reliability is greatly improved.

The invention discloses a device and method for processing monitoring data. The device comprises a data collecting module, an abnormality capture module and a data complementing module, wherein the data collecting module is used for collecting monitoring data of a monitored object, and sequentially storing the collected monitoring data in a monitoring data table according to collecting time nodes; the abnormality capture module is used for inserting abnormal flag data in corresponding time nodes of an abnormal data table when the monitored object is abnormal; and the data complementing module is used for complementing corresponding monitoring data according to the time nodes corresponding to the abnormal flag data when the monitoring data is queried on a front end interface. According to the device and method for processing monitoring data, only when a user queries a monitoring data trend chart can data supplementing be performed on the time nodes where the monitored object has failure according to the abnormal flag data, the data is presented to the user's front end interface, junk redundant data does not need to be inserted in a monitoring data table, and the unnecessary junk redundant data and a problem that the data on the monitoring data trend chart is linearly connected but the time is staggered can be avoided.

The invention provides a method for obtaining a three-dimensional isosurface of radar reflectivity data, comprising the following steps: normalization of radar three-dimensional scanning data; construction of a hexahedral grid of radar data points; calculation of a three-dimensional isosurface of radar reflectivity data. The present invention quickly acquires the three-dimensional isosurface of radar reflectivity data, so that radar product data can be well applied in three-dimensional scenes, and can better provide effective decision-making support for disaster reduction and prevention of meteorological disasters, and has good social and social Economic effect; at the same time, its ability to quickly obtain the shape of rainfall clouds can shorten the response time of relevant departments to disasters.

The invention discloses a data reception device, a system and a method capable of intelligently adjusting reception conditions; the data reception device comprises the following units: a reception condition adjusting unit used for automatically adjusting data reception conditions according to user history usage records; a measured data obtaining unit used for obtaining user body measured data; a filter unit used for comparing the measured data with data reception conditions of each user bonded with a body weight detector; a filtering result processing unit used for sending the measured data to a mobile terminal corresponding to the user according to the comparison result of the measured data and the data reception conditions of each user. The method and method can filter the measured data according to the data reception conditions, thus preventing mass redundancy data; the method can intelligently adjust the data reception conditions, thus ensuring the data to be received and claimed when the user body data has large changes, and automatically claiming the body weight detector measured data.