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215results about How to "Resolve interruption" patented technology

Multi-starting-point incremental three-dimensional reconstruction method based on large-scale disordered images

The invention discloses a multi-starting-point incremental three-dimensional reconstruction method based on large-scale disordered images. The method comprises the steps of performing image matching, constructing a matching relationship chart, selecting a reconstruction starting point, detecting an edge, performing multi-starting-point three-dimensional reconstruction and splicing a submodel. By means of a clustering strategy and an iteration drift strategy, an image pair which is suitable as starting points is adaptively selected from a disordered image set and reconstruction is performed simultaneously; before reconstruction, determining an optimal reconstruction sub-process of each image according to a layered shortest path first algorithm, and determining a reconstruction boundary; and obtaining a whole three-dimensional reconstruction model according to sub-models obtained in different sub-processes and splicing the common parts contained in the sub-models. The three-dimensional reconstruction method according to the invention has advantages of settling a problem of suspension in reconstruction process when a current scene comprises a plurality of non-overlapped parts, obtaining a whole three-dimensional model which is covered by the image set, preventing three-dimensional structure error caused by matching and transmission of error images, realizing parallel processing in reconstruction sub-process, and improving image reconstruction efficiency.
Owner:HUAZHONG UNIV OF SCI & TECH

Network protection method, network protection system, controller and equipment

The invention discloses a network protection method, a network protection method system, a controller and equipment, which are used for solving the problem of service interruption in the prior art and improving the network reliability. The network protection method comprises the following steps that the controller receives first warning information reported by the equipment in a network, and determines that cable fracture occurs in a first link; the controller issues link flow table configuration with a link diagnosis mechanism to the equipment until first feedback information sent by the equipment is received or second warning information sent by the equipment is received after preset time, wherein the first feedback information is reported to the controller after the equipment creates a second link according to the received link flow table configuration, the controller determines information that the second link is available, and the second warning information is information that the second link is unavailable and is determined by the controller; after receiving the first feedback information, the controller sends a flow table instruction, wherein the flow table instruction is used for controlling the equipment to replace the first link with the second link, to remove the first link and to add the second link into an original protection group.
Owner:RAISECOM TECH

System and method for performing virtual master-to-slave shift to keep TCP connection

The invention discloses a system and a method for performing master-to-slave shift to keep TCP connection, and relates to the field of TCP connection. The system comprises a master main control board and a slave main control board, the master main control board and the slave main control board have the same structure and function, each of the master main control board and the slave main control board comprises a Hypervisor and a TCP backup and recovery module, and the Hypervisor comprises a protocol control plane. In normal operation, only the protocol control plane of the master main control board operates, and the system enters a backup state; and in the case of failure, the slave main control board works, and the system enters a recovery state: the protocol control plane of the slave main control board operates to obtain TCP data from the TCP backup and recovery module of the slave main control board, so as to correct a TCP window. The system can be used for backing up all TCP data and correcting the TCP window through the backup TCP data when performing the master-to-slave shift in the case of failure, and the TCP connection can be recovered to a normal window state to keep the TCP connection non-interrupted.
Owner:FENGHUO COMM SCI & TECH CO LTD +1

Switchover method of single-service multi-path transmission in heterogeneous network

The invention discloses a switchover method of single-service multi-path transmission in a heterogeneous network. The method is based on a heterogeneous network integration system, and single-service of users is transmitted in multi-path mode by a network supporting seamless switchover and a network which does not support the seamless switchover. In a transmission process, when a transmission link of the network which does not support the seamless switchover is switched over, service transmitted through the network which does not support the seamless switchover is switched over to the network supporting the seamless switchover. When the transmission link of the network which does not support the seamless switchover finishes the switchover, multi-path transmission is recovered. The switchover method of the single-service multi-path transmission in the heterogeneous network is provided and aims at solving the problems of service interruption and data service losing of the multi-path transmission in a switchover process in the prior art. Real-time performance and integration of single-service in the switchover process are guaranteed by switching over the service transmitted by the network which does not support the seamless switchover to the network supporting the seamless switchover.
Owner:XIDIAN UNIV

Azimuth trace acquisition method and device for flexible towed linear array sonar noise target

The invention provides an azimuth trace acquisition method and device for a flexible towed linear array sonar noise target so as to effectively solve a problem of target azimuth trace interruption anddeviation caused by flexible towed linear array formation disturbance and underwater acoustic environment complexity, and improve the accuracy of a sonar noise target tracking azimuth trace. The method comprises the following steps: step 1, performing split sub-array frequency domain beam forming on current frame data of an array element channel according to flexible towed linear array array manifold information and a previous frame target orientation; step 2, carrying out target azimuth accurate measurement on the output formed by the frequency domain wave beam according to a processing frequency band; step 3, performing association confirmation on the target angle measurement value of the current frame by using a variable tracking gate, and removing and correcting outliers; and step 4,carrying out smooth filtering processing on the multiple frames of target azimuth values to obtain a stable and continuous target azimuth trace. The device applies the method. According to the invention, the technical problem of improving the accuracy of the sonar noise target tracking azimuth trace is solved.
Owner:NAVAL UNIV OF ENG PLA
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