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3488results about How to "Guaranteed timeliness" patented technology

An intelligent network-connected automobile operation system based on vehicle-road collaboration

ActiveCN109714421ARealize data standardization and interconnectionMeet different applicationsParticular environment based servicesDetection of traffic movementHorizonVehicle driving
The invention discloses an intelligent network-connected automobile operation system based on vehicle-road collaboration. The intelligent networked automobile operation system comprises a high-precision map platform, a cloud control platform, a vehicle-mounted terminal platform, a vehicle-mounted computing platform and an information security platform. The high-precision map platform provides a real-time dynamic high-precision map; the cloud control platform and the vehicle-mounted terminal platform are subjected to cooperative management and control through a communication network; the cloudcontrol platform executes data storage, cloud computing and standardized data interconnection; the vehicle-mounted terminal platform executes information reporting; wherein the vehicle-mounted computing platform is connected with the vehicle-mounted terminal platform through the vehicle-mounted Ethernet, over-the-horizon perception data, map data, environment data and the like are obtained, a vehicle driving scheme is formulated through fusion calculation, and the cloud control platform, the vehicle-mounted terminal platform, the vehicle-mounted computing platform and the map platform are allprovided with safety monitors. Common basic services are provided for operation of the intelligent network connection automobile, and national and industrial development requirements are met.
Owner:CHINA INTELLIGENT & CONNECTED VEHICLES (BEIJING) RES INST CO LTD +1

Insurance recommendation system framework and insurance recommendation method based on e-commerce platform

InactiveCN103473354AAccurate and personalized insurance recommendationGuaranteed timelinessFinanceSpecial data processing applicationsPersonalizationThe Internet
The invention belongs to the technical field of recommendation systems in the information technology and relates to an insurance recommendation system framework and an insurance recommendation method based on an e-commerce platform. The insurance recommendation system framework and the insurance recommendation method are particularly suitable for insurance recommendation application under the Internet environment and also have reference significance to the recommendation of other commodities based on the e-commerce. Aiming at the characteristic of being based on an insurance e-commerce platform, a generalized system framework for an individualized insurance recommendation system is disclosed; in consideration of the specific scene of the insurance e-commerce platform, an insurance individualized recommendation process based on the e-commerce platform is designed; all recommendation methods are integrated in one recommendation framework, the advantages of all recommendation methods are fully utilized and the goal of accurate and reliable individualized insurance recommendation is realized; two modes, i.e. an offline recommendation mode and an online recommendation mode are jointly used to guarantee the timeliness of the recommendation; recommendation results are explained and the behaviors of users on which each recommendation result is given are pointed out; due to the specificity of insurance recommendation, a reasonable recommendation result display interface is designed.
Owner:FOCUS TECH

Mobile robot pose correction algorithm based on multi-level map matching

The invention discloses a mobile robot pose correction algorithm based on multi-level map matching, which belongs to the technical fields of robotics and computer graphics. The algorithm of the invention uses a synchronous positioning and a composition algorithm to establish a global raster map, and combines a matching relationship between the current observation and the raster map to correct thetrack calculated by the track using an AMCL algorithm for reckoning the pose, so that the relatively accurate global pose information can be obtained, at the same time, the raster map is converted toa corresponding global target point cloud map, and the laser point cloud observed by the robot in real time is registered with the target point cloud map to further correct the global pose. The methodof the invention can obtain accurate global pose information and reduce the accumulation of long-distance positioning errors, and avoids the shortcomings of an existing particle filter technology that the pose solution is not accurate due to a limited particle space, the accuracy and efficiency of an ICP algorithm are too dependent on the initial pose, and efficient and accurate pose solution canbe realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

High-precision map updating method and device and storage medium

The invention provides a high-precision map updating method and device and a storage medium. The method comprises the following steps of obtaining a crowdsourcing image uploaded by a crowdsourcing vehicle terminal, wherein each image carries the position information when the corresponding vehicle terminal collects the image; based on the crowdsourcing images and a high-precision map database, determining the effective change elements of the current high-precision map and the position information of the effective change elements; and obtaining the video data uploaded by the first vehicle terminal set according to the position information carried by each image and the position information of the effective change elements, and updating the high-precision map database according to the video data uploaded by the first vehicle terminal set. According to the technical scheme, the updating of the high-precision map database is based on the image and video information uploaded by a crowdsourcing vehicle terminal, the collection by using an expensive collection vehicle is not needed, the updating speed is high, the timeliness of map updating can be ensured, and the driving safety problem of an automatic driving vehicle is avoided.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Method for detecting, recovering and controlling for independence trouble during orbital transfer course

An autonomous fault detection recovery control method during the orbital transfer includes (1) the autonomous fault detection: firstly, setting fault judgment conditions at a star acquisition stage, an inertia attitude adjusting stage, a star directional stage and a rail control directional stage of an autonomous orbital transfer method; introducing judgment conditions during the orbital transfer process; (2) the autonomous recovery control: when a satellite autonomously detects out faults and enters the recovery control, the autonomous control satellite on the star enters a velocity damping stage; when the attitude angular velocity damping of the satellite is successful, the satellite autonomously enters the star acquisition stage; the rail control process is reinstalled, which means that the starting time of every stage during the subsequent orbital transfer process; the satellite transfers into the corresponding working stage to recover the orbital control according to the reinstalled time. The method of the invention improves the reliability of the orbital transfer, ensures the accurate implementation of the orbital control in time and can better ensure the realization of the only window for the orbital control.
Owner:BEIJING INST OF CONTROL ENG

Method for purifying error matching of visual image characteristic points based on ORB (Oriented FAST and Rotated BRIEF)

The invention relates to a method for purifying error matching of visual image characteristic points based on ORB (Oriented FAST and Rotated BRIEF). The method comprises the following steps of readingtwo to-be-detected left and right images shot under different viewing angles, constructing scale image pyramids for the images and performing grid processing; detecting characteristic points in eachsmall grid of each layer of pyramid images, extracting the characteristic points and determining a characteristic point coordinate; removing the characteristic points close to edges of the images, andcalculating the direction of a barycenter of the remaining characteristic points; calculating descriptors of ORB characteristic points; performing rough matching on the characteristic points of the two images; screening rough matching pairs of the characteristic points; removing error matching pairs again; and performing an RANSAC (Random Sample Consensus) algorithm iteration on the remaining characteristic points, and outputting the purified matching images. According to the method for purifying error matching of the visual image characteristic points based on the ORB, the detected characteristic points are uniformly distributed, the characteristic point clustering effect caused by easy huddle of multiple characteristic points is avoided, and the matching speed is accelerated while improving the matching accuracy.
Owner:FUZHOU UNIV

System and method for providing network service relating to four parties

ActiveCN101272281AEasy to useRich service resourcesData switching networksThird partyNetwork service
The invention provides a system of providing network service involving four parties, which comprises: a plurality of operation information subsystems, a plurality of third party service-providing subsystems, and a fourth party service platform; the operation information subsystems are used for providing a detailed operation network service of a certain field for each user; the third party service-providing subsystems are used for providing a certain generality service to at least one operation information subsystem and the generality service points at generality requirement of each operation information system; the fourth party service platform is located between each operation information system and each third party service-providing subsystem, so as to adapt to each operation information system and each third party service-providing subsystem; the fourth service platform is used for providing unified interfaces for each operation information system, and for respectively providing unified interface for the third party service-providing subsystem, dispatching the required service and returning results and providing service operation support. The system of the invention can remarkably reduce the difficulty of using generality services of a third party for the operation information system.
Owner:BEIJING UNIV OF POSTS & TELECOMM

BIM-based water conservancy and hydropower project management cloud platform and application method thereof

A BIM (Building Information Modeling)-based water conservancy and hydropower project management cloud platform comprises a data acquisition layer, a communication network layer, a data resource layer, an application support layer, and a service application layer. The data acquisition layer includes project information management and spatial information measurement; the communication network layer includes a local area network, a VPN (Virtual Private Network) or a public network; the data resource layer includes a BIM model which is stored in a public cloud, in a private cloud or in a hybrid cloud and includes a BIM integrated database; the application support layer includes a BIM project management platform and a data exchange platform; and the service application layer includes BIM information query, construction process BIM management and BIM information output. The BIM integrated database is connected with different project object data, processes and resources, is a digital expression of construction facilities which contains rich data, is object-oriented and has intelligent and parametric characteristics, and supports dynamic information creating, sharing, updating and managing in the life cycle of a project.
Owner:ZHENGZHOU SHUANGJIE TECH CO LTD

Event warning method based on Internet information

The invention discloses an event warning method based on Internet information and belongs to the technical field of information. The method comprises the following steps. Firstly, crawling of webpage information on each set website is performed, the webpage information is stored, and information relevant to an event is obtained. Secondly, junk information filtering is performed on the information which is relevant to the event and obtained by crawling. Thirdly, an event information main body is set up, the information after filtering is sorted based on example names and attributes in the event information main body by utilizing a mode matching method. Fourthly, the sorted information is clustered according to set characteristics, and events in each kind of information are obtained. Fifthly, all the characteristic parameter values of each event are obtained regularly, and if a difference value of all the characteristic parameter values of one event and an average value of the event in a given previous period exceeds a preset threshold, warning on the event is performed. The event warning method based on the internet information ensures timeliness, accuracy and comprehensiveness of information identification and warning of food safety events, and improves efficiency of risk warning of food safety.
Owner:COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI

Network protocol conversion method for power grid system and intercommunication method of power grid system

The invention discloses a network protocol conversion in a power grid system and a mutual communication method thereof. The protocol conversion is connected to a host running a virtualization concentrator through an Ethernet interface through an Ethernet; it receives and processes the protocol sent from the virtual concentrator Ethernet meter reading message; send the DL645 protocol message through the 485 bus; send back according to the Ethernet meter reading protocol. The power line network system includes a main node and several sub-nodes, and the main node and each sub-node are interactively connected through power lines. The master node is interactively connected with the upper computer application platform terminal through the RS232 interface. The several sub-nodes are interactively connected with the field application equipment through the RS485 interface. The electric network system and its protocol conversion and communication method described in the present invention can solve the deficiencies in the prior art, improve the speed of sending and receiving data at each node of the power line network system, ensure the timeliness of data message transmission in the PLC networking, and make the PLC Networking applications are more flexible and reliable.
Owner:汤亮

Method for file real-time monitoring and intelligent backup

The invention provides a method for real-time monitoring and intelligent backup of file operation. The method implementing device consists of a file real-time monitoring module, an information real-time reading module, an information real-time processing module and a file intelligent backup module. Each module has the following function: the file real-time monitoring module is used for monitoringuser operation on the specified file and can acquire all user operation information on the file under multiple specified directories; the information real-time reading module is used for reading the file operation information acquired from the file monitoring module, and notifying the information real-time processing module to process the file operation information; the information real-time processing module is used for processing the file operation information and notifying the file intelligent backup module to perform file backup operation; and the file intelligent backup module is used for performing backup on the file, wherein the backup mode can select real-time backup or perform intellectualized backup according to the file operation frequency. The four modules execute the functions concurrently. The method can timely and accurately record the user operation information on the file under the monitoring directory and perform real-time or intelligent backup, and provides support for continuous data protection of the file.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Forging press machine operation condition information acquisition and analysis system based on the internet of things technology

The invention discloses a forging press machine operation condition information acquisition and analysis system based on the internet of things technology. According to the system, the operation condition analog quantity is obtained through a sensor; the forging press machine operation condition switching values are obtained through acquiring the PLC signal points; the information contents are processed by a data acquisition terminal interface circuit and then transmitted to processor chips of the data acquisition terminal; then the information contents are transmitted to a cloud server through a GPRS (General Packet Radio Service) communication module for the convenience of data sharing. By means of the server built-in software, the cloud data is analyzed in real time; on one hand, machine tool users can obtain the machine tool operation reports or pre-warning information through PC so that they can monitor the machine tool condition at any time, and obtain fault diagnosis reports from machine tool seller technical staff; on the other hand, the seller technical staff can inquire the machine tool operational efficiency and working curves through PC at any time to acquire the machine tool physical condition in real time and to estimate faults in time.
Owner:UNIV OF SCI & TECH OF CHINA

Heterogeneous network switching control method, signal transmission method, equipment and communication system

The embodiment of the invention discloses a heterogeneous network switching control method, a signal transmission method, signal transmission equipment and a communication system. In the embodiment of the invention, adjacent/covered overlapped base stations all adopt the combination design of first-type and second-type carriers, and at least a pair of the first-type and second-type carriers of the adjacent/covered overlapped base stations are identical in frequency; and the adjacent/covered overlapped base stations transmit physical downlink control channel (PDCCH) signaling, physical control format indicator channel (PCFICH) signaling, physical hybrid automatic repeat request indicator channel (PHICH) signaling and cell-specific reference symbols (CRS) in physical control channels of the first-type carriers, and transmit the CRSs on the second-type carriers. Therefore, user equipment (UE) can be ensured to obtain accurate physical control channel mobility measurement results of cells of the adjacent/covered overlapped base stations and timely trigger measurement reporting in same-frequency measurement; moreover, the service continuity of a user can be relatively better ensured, and unnecessary uplink/downlink data channel interference between neighbor cells can be avoided.
Owner:HUAWEI TECH CO LTD
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