11results about How to "Avoid duplicate transmission" patented technology

The invention relates to the technical field of computers, and discloses a host firewall software strategy collection and analysis method. The method comprises the steps of S1, deploying acquisition agents in a distributed manner, and acquiring policy data of a host firewall; s2, carrying out standardized analysis and storage on the collected data; s3, uploading the standardized strategy data to a central management node through an incremental synchronization mechanism; s4, constructing a rule dependency graph based on the rule data at the central management node; and S5, performing conflict detection and redundancy analysis on the host firewall rule by using the rule dependency graph. Priority conflict, coverage conflict and mutual exclusion conflict detection is performed on the rule set through the rule dependency graph, the priority conflict detection ensures the execution logic consistency of the rule, the coverage conflict detection reduces the redundant execution of the rule, and the mutual exclusion conflict detection avoids the rule combination of logic contradictions. And through systematic conflict detection, the execution accuracy and reliability of the rule set are remarkably improved.

The invention belongs to the field of big data, and relates to a data synchronization method, comprising: acquiring a target timestamp recorded in a configuration table of a data management framework, the target timestamp being a maximum timestamp recorded in the configuration table when data synchronization processing is performed last time; the target timestamp is adopted as a screening condition, and incremental data with the timestamp larger than the target timestamp is inquired from the data source table; according to a field mapping relationship in the configuration table, determining a synchronization field which needs to be synchronized to the target table from the incremental data of the data source table; and on the basis of a preset unique field, matching the synchronization field of the data source table with the data of the target table, and on the basis of a matching result, synchronizing the synchronization field of the data source table to the target table. The invention further provides a device, equipment and a medium. In addition, the invention also relates to a block chain technology, and the configuration table of the data management framework, the target timestamp and the synchronization field of the data source table can be stored in the block chain. The incremental data synchronization efficiency can be improved.

The invention discloses a point cloud intelligent cutting and dynamic optimization method based on edge computing, and belongs to the technical field of intelligent traffic systems and edge computing, and the method comprises the steps: collecting three-dimensional point cloud data through a multi-line laser radar disposed on an RSU; generating a three-dimensional bounding box through a three-dimensional target detection network in an RSU edge calculation unit, generating an ROI mask, expanding a buffer region, and performing adaptive region cutting on the point cloud to form an ROI point set and a background point set; a perception-driven cutting decision is realized, and ROI extraction is converted into a self-learning process based on semantic features from fixed threshold judgment; voxelizing the non-uniform resolution point cloud, generating a unique hash index for each voxel unit, comparing a hash set of a current frame with a hash set of a previous frame, extracting newly added and disappeared point sets, and constructing a differential data packet according to a change ratio; while high timeliness is kept, data redundancy is reduced, and the point cloud updating rate and the incremental transmission efficiency are improved; and dynamic optimization of communication-calculation cooperation is realized.

The invention relates to a multi-agent collaborative sensing method based on spatio-temporal joint selection. The method comprises the following steps: acquiring original sensing data of a plurality of agents; constructing a spatial sparse region selection mask; generating a joint sparse feature map; sparse features of the intelligent agent are obtained; obtaining a fused feature map; and carrying out intermediate-stage three-dimensional target detection, and carrying out later-stage fusion on the intermediate-stage three-dimensional target detection and an independent detection result of the collaborative agent to obtain a final collaborative perception detection result. According to the method, the space sparse region is constructed to select the mask, so that the relatively high sensing performance can still be kept in a scene with extremely limited bandwidth; the communication burden is reduced, the transmission content is more focused on a dynamic target which really contributes to collaborative perception, and the information utilization rate is improved; the detection precision is improved by using multi-view complementary information, the missed detection and false detection risks caused by time delay or shielding in intermediate fusion are reduced through a later compensation mechanism, and finally a more accurate and more complete 3D target detection result is obtained.

A multi-terminal data synchronization and secure storage method, device, program product and medium, relating to the technical field of mobile Internet, by dividing learning data into dynamic interactive data and static resource data, and managing the change history of dynamic interactive data through version index tree, so that the system can accurately locate the data version that needs to be synchronized. When the second terminal requests data synchronization, the system only transmits the necessary target data, and realizes on-demand access of static resources through access token mechanism, avoiding repeated transmission of large resource files. This data classification and incremental synchronization based method significantly reduces network transmission overhead and improves the efficiency of multi-terminal data synchronization. At the same time, by separating the access control of static resource data and the synchronization transmission of dynamic interactive data, the safe use of electronic resources is guaranteed, and the needs of users to flexibly switch learning among multiple terminals are met.

The application provides a kind of spaceborne super high speed image intelligent processing method and device, including: high speed data interface unit, intelligent image processing unit, main control unit;The high speed data interface unit is connected respectively external data input unit, intelligent image processing unit and main control unit.This application keeps original data on front end FPGA, GPU module is only used as the position calculation of slice, avoids the repeated transmission of internal mass data, so as to cause the pressure of transmission bandwidth.

The invention provides a diskless starting method and system in an FTTR virtual domain, and belongs to the technical field of network communication, and the method comprises the steps: receiving at least one software firmware version loading request, and enabling each software firmware version loading request to be transmitted by a home gateway unit; determining the number of home gateway units sending the software firmware version loading requests; and based on the number, determining a sending mode of the software firmware version, and sending the software firmware version to the home gateway unit based on the sending mode, so that the home gateway unit completes starting according to the software firmware version. According to the invention, the number of the loading requests of the home gateway unit is received and counted through the virtual home gateway unit, a multicast or unicast mode is flexibly selected to distribute software firmware versions, and efficient diskless startup is realized, so that the number and the capacity of a nonvolatile memory are reduced.

The invention relates to the technical field of audio processing, in particular to an audio transmission system and method, a related device and a vehicle, and the system comprises a first device, a second device and a power amplifier device; wherein the first equipment and the power amplifier equipment are connected to form a first transmission link, and the first transmission link is used for at least transmitting multimedia information; the second equipment and the power amplifier equipment are connected to form a second transmission link for at least transmitting the multimedia information; and the first equipment and the second equipment are connected to form a third transmission link for at least transmitting the instruction information. According to the audio transmission system, through the annular audio link, the operational capability and reliability of the system can be improved.

The invention provides a TCP message packaging method and device, electronic equipment and a storage medium, and relates to the technical field of data transmission, and the method comprises the steps: receiving a TCP message sent by a CPU of a home terminal, and segmenting the TCP message into at least two first segmented messages under the condition that an opposite terminal and the home terminal establish communication connection; optimizing a redundant field in each first segmented message, and determining each first encapsulation message; for each first encapsulation message, determining a second encapsulation message corresponding to the first encapsulation message based on verification state data corresponding to the home terminal; the verification state data is used for indicating whether the first encapsulation message enables verification and unloading or not. The invention can effectively reduce the head overhead and improve the data transmission rate.

The invention relates to the technical field of software engineering, in particular to a method for realizing micro-service multi-node remote deployment, which comprises the following steps of: configuring a control node of an Ansible, an NFS (Network File System) server and a target host before deployment, and uploading a deployment file to a shared directory of the NFS server; mounting a shared directory of the NFS server on the target host through the Ansible, and copying a deployment file in the shared directory of the NFS server to the target host through the Ansible; the Ansible calls the deployment file so as to stop an old-version Java process in the target host, clear up files of the old-version Java, start a new Java application and check the state of the new Java application; and judging a deployment result according to the log of the Ansible. According to the method, the updating and upgrading efficiency of traditional service deployment is improved, the problem of misoperation possibly caused by manual operation is reduced, and the labor cost of online application versions of enterprises is saved.

The invention discloses a vehicle OTA upgrading channel switching method and device, equipment and a storage medium, and the method comprises the steps: collecting the information of communication channels currently available for a to-be-upgraded vehicle in real time after an OTA upgrading task is received, carrying out the comprehensive evaluation of the safety and reliability of each available communication channel, and obtaining a comprehensive score; before OTA upgrading of the to-be-upgraded vehicle, a channel corresponding to the highest score with the score value larger than a first preset threshold value is selected from the comprehensive scores to serve as an initial upgrading channel, and change of the score value of the initial upgrading channel is continuously monitored in the upgrading process; when it is detected that the score value of the initial upgrading channel is continuously lower than a second preset threshold value, the current transmission task is paused, the initial upgrading channel is switched to an alternative channel with the highest comprehensive score, a re-authentication process is executed, the OTA upgrading task continues to be completed through a breakpoint continuous transmission mechanism, and the first preset threshold value is larger than the second preset threshold value. And the OTA upgrading success rate and safety can be obviously improved.