160results about How to "Meet access needs" patented technology

A file system created on storage medium is composed of a data region for storing actual file data and a meta-data region for storing mark data used for mapping between physical data and logical data. It features that the unidirectional link table of the physical positions for the data of each actual file in the data region is stored in the meta-data region for managing the actual files according to the index address of each unidirectional link table. Its file managing method includes reading data from metal-data region to form a database file, and accessing the database file to get the index address of unidirectional link table for managing the actual files.

The present invention provides a LORA Internet-of-Things environmental data collection and cochain implementation method based on edge computing and a blockchain, belonging to the related field of Internet-of-Things data collection and storage. The mechanism provides a feasibility method capable of overcoming the problem or at least partially solving the problem. The implementation system architecture of the method comprises the following steps of: achieving blockchain data and at least one LORA edge gateway communication by a server; allowing the LORA networking technology to meet the accessdemand of a lot of edge devices in an Internet-of-Things environment with low cost; employing an embedded microprocessor to achieve edge computing, performing preprocessing of the obtained environmentdata to reduce the calculated amount of the data processing and analysis, improve the calculation efficiency, reduce the network transmission load, reduce the network transmission delay and save theenergy consumption; and employing the blockchain storage technology to ensure the credibility and the safety of data storage.

A connection controlling method of integrating a time synchronous code division multiple access with a automatic-organizing network belongs to the mobile communication field of the communication technology, based on keeping the unitive air interface of TD-SCDMA honeycomb network physic frame invariable construction, the method is a multi-channel synchronization connecting control method based on the preset pattern and distributing pattern control, the time span resource is divided into the control channel and the data channel by the OVSF (Orthogonal Variable Spreading Factor), thus improving the time span reusability through terminal to terminal status to expose the terminal problem, the method maintains the time span status of node within two jumps time span, and realizes the conflict-free wireless connection within two jumps time span; thereby solving the problems of realizing the conflict-free visit time span and performing the reliable alternation communication under integrating network and multi-communication modes.

The invention discloses an integrated access system and an integrated access method for mass electricity information acquisition terminals. The integrated access system comprises a main control unit, previous communication units and a terminal load balancing unit, wherein the main control unit is used for realizing the functions of receiving, analyzing and recording commands transmitted by an acquisition system to the acquisition terminals, distributing the commands to the previous communication units as well as executing the commands of the acquisition system and feeding back the results, and realizing unified management and control of tasks; the previous communication units are used for receiving the acquisition terminals distributed by the terminal load balancing unit and realizing real-time communication, channel management, protocol analysis and data persistence of the acquisition terminals; the terminal load balancing unit is used for connecting connection from the acquisition terminals to a plurality of previous communication units according to the rule of configuration information, so that the access response speed and resource utilization rate of the acquisition terminals are improved, and single point failure of key parts of a network are avoided. The integrated access system and the integrated access method disclosed by the invention are applied to the acquisition system for the electricity information; the demand on integrated access of mass terminals can be met, and the acquisition efficiency and the resource utilization rate of the terminal information are effectively improved.

The embodiment of the invention discloses a default access point name selection method and a default access point name selection device. The default access point name selection method comprises the following steps of: acquiring the capacity information of a subscriber terminal, wherein the capacity information of the subscriber terminal comprises at least one of the access technology type of the subscriber terminal and the type of the subscriber terminal; and determining a default access point name of the subscriber terminal according to the acquired capacity information of the subscriber terminal and access point name configuration parameters, wherein the access point name configuration parameters comprise corresponding relationships between the capacity information of the subscriber terminals and the default access point names. The embodiment of the invention can select a proper packet data network (PDN) for the subscriber terminal to access.

An FTTH optical access network architecture based on ''three-network integration'' belongs to the application field of multi-network fusion technology. The FTTH optical access network architecture comprises the following components: an accessed telecommunication public network, an accessed Internet, wireless transmission, a broadcast television access network, the existing local area network fireproof wall of the enterprise, the existing local area network core switch of the enterprise, a media gateway, a three-network integrated first-core switch session boundary controller, the fireproof wall, the switch, a NGN soft switching system, a narrowband charger, a network management system, a first database server, an intelligent service gateway, a gigabit Ethernet passive optical network GPON, an optical fiber line terminal device EPON, an optical amplifying unit, an ONU, a digital monitoring system, a wideband charger, a security service gateway, a server, an optical splitter, an AP, an optical network terminal ONT, an optical network terminal with a wireless home gateway, an optical network terminal M3-2401, an integrated access device and an integrated service aceess plateform. The FTTH optical access network architecture of the invention has the advantages of multi-network fusion, high bandwidth, high stability, low input and high return.

The invention provides an island detection method of AFD (active frequency drift) based on a synchronous rotation coordinate system, relating to an island detection method of AFD. The method can be used to meet access requirements of a distributed power supply in a middle or low pressure power distribution network. An island detection algorithm of the AFD based on the synchronous rotation coordinate system is compared with a passive island detection algorithm, and when the load power is matched with the power output of an inverter, detection dead zones do not exist; and the island detection algorithm of the AFD based on the synchronous rotation coordinate system is compared with a traditional AFD algorithm, a distortion position does not generate at a current zero-crossing position, and active currents do not fluctuate, thus DC (direct current) busbar voltages do not fluctuate consequently. The method is applied to the island detection.

The invention discloses a load sharing method and equipment. The method comprises the following steps that a load scheduler detects load information of each virtual machine in a service virtual machine group; the load scheduler uses the load information to adjust a virtual machine quantity in the service virtual machine group and the virtual machine quantity is used to determine whether the virtual machine is added in the service virtual machine group or the virtual machine is recycled from the service virtual machine group; the load scheduler uses a load balancing algorithm to carry out load sharing on a user access request message among the virtual machines in the service virtual machine group. In an embodiment of the invention, when a lot of users access a service, a quantity of the virtual machine of the service can be increased to share the service so as to satisfy access demands of a lot of users; when the a quantity of the users who access the service is decreased, a quantity of the virtual machine providing the service can be reduced and virtual machine resources are recovered.

The invention relates to a multi-interface coordinator of a wireless sensor network, comprising a core board, an expansion board, a wireless communication module and a power supply module. The core board further comprises a microcontroller module and a memory module, wherein the microcontroller module comprises a plurality of peripheral interfaces; and the expansion board is connected with the core board by the peripheral interfaces provided by the microcontroller module. The invention has the advantages of selectively using the microcontroller comprising a plurality of peripheral interfaces to satisfy the access needs of a plurality of control buses and network sorts so as to shorten the design period and decrease the production cost; and the microcontroller module further comprises an Ethernet controller and a data-processing unit which are integrated in the same chip.

The invention discloses a distributed real-time database management system and an implementation method applicable to an electric system and belongs to the field of database technologies. The real-time database management system comprises a server side, a real-time database side and a client side. The distributed management of real-time databases can be achieved through mechanisms such as file mapping, instance IDs, version numbers and client side caching. Through the distributed real-time database management system and the implementation method applicable to the electric system, transparency of multiple database instances is achieved, access of clients to the multiple database instances equals to access to a single database instance, the province-wide centralized deployment of the databases are facilitated, the province-wide unified data schema, data models and data standards are facilitated, and the access requirements of existing data and future data can be met.

The invention discloses a method and an apparatus for realizing an access request in a dual priority scene, so that in a network congestion scene, a terminal can deal with different access requests of applications having different priorities in different ways according to a retreat timer, and access demands of equipment having multiple priorities can be satisfied. The method comprises steps that a user terminal (UE) determines a priority limited by a retreat timer according to a priority identifier of the retreat timer when a retreat timer is running locally; and the UE compares a priority of the to-be-sent access request with the priority limited by the retreat timer, and if the priority of the to-be-sent access request is higher than the priority limited by the retreat timer, the UE sends the access request to a network side.

The invention discloses a data access control method and device, and belongs to the technical field of data safety. The method includes the following steps: setting authorization conditions for data access; determining data access requests that meet the authorized conditions; and carrying out an authorization operation, corresponding to the authorization conditions, applied on data according to the data access requests. The authorization conditions includes one or more, and the data is stored in a blockchain network. The method and device realize the safety isolation of the data and the precise control of the security access, satisfy multiple access requirements of users for the data and avoid risk problems of malicious access and tampering with the data to a certain extent at the same time, overcome corresponding drawbacks of the prior art in the field, and have a good application prospect.

The invention relates to a method for DDS communication in the field of power distribution networks. The method comprises the steps of first generating an issuing party and a subscription party, enabling the subscription party to send needed data types to a data theme generation module, enabling the data theme generation module to establish a data theme for the issuing party according to the data types needed by the subscription party, enabling data theme types to comprise telemetering, telecommand, a telemetering sequence and a telecommand sequence, and when the subscription party needs a single datum in one time, establishing a telemetering or telecommand data theme for the issuing party; and when the subscription party needs a plurality of data in one time, establishing a telemetering sequence or telecommand sequence data theme for the issuing party. Not only does a subscription mode improve transmission efficiency, but also the subscription party can subscribe all telemetering of some line in one time and can also specific telemetering of all lines in one time so as to compare maximum values, flexibility is improved for a transmission mode, and the problem that in the prior art, only one datum can be transmitted in one time, so that the transmission is slow and the efficiency is low is solved.

The invention discloses fixed and mobile broadband fused access network architecture. The architecture comprises a central office, multiple wavelength division multiplexing loops and a PON (Passive Optical Network) access module. The central office comprises a plurality of upper linkage units and a resource pool. Each wavelength division multiplexing loop comprises a loop local end unit and multiple loop far end units. The PON access module comprises an ODN and ONUs. The upper linkage units are communicated with a core network. The resource pool virtualizes functions such as an OLT (optical line terminal), CPE (Customer Premise Equipment), a BAS (Broadband Access Server) and a BBU (Building Baseband Unit) based on an NFV (Network Function Virtualization) technology. Each wavelength division multiplexing loop is used for realizing optical transmission between the PON access module, base stations and big customers, and the central office. The base stations and the big customers are directly connected with the loop far end units. The ONUs are connected with fixed broadband users or base stations and RRUs of mobile broadband and access the fixed broadband users and the base stations and RRUs to the network. Optical transmission between the loop far end units and the ONUs is realized through the ODN. According to the architecture, the fixed broadband and mobile broadband fused sharing is realized in the network resource aspect; the low-cost and multi-access advantages of the PON technology are exerted fully; and the low-cost, high-capacity, high-sped and high- survivability transmission is realized.

The invention discloses a convergence type metropolitan area wavelength division access network system and an accessing method, and relates to the field of metropolitan area access. The system comprises an OLT located in a central apparatus room, m ROADM nodes and n far-end OTUs, wherein m and n belong to positive integers, m is larger than or equal to 1, and n is larger than or equal to m. The central apparatus room is a network convergence point, the OLT of the central apparatus room and the m ROADM nodes are sequentially connected through optical fibers to form an annular topological structure, the connecting direction of the m ROADM nodes in an annular topology is expressed in the eastward direction and the westward direction, on the basis of the clockwise direction, the eastward direction of a prior ROADM node is connected with the westward direction of a next ROADM node, only one optical fiber exists between every two adjacent ROADM nodes, and each ROADM node is connected with at least one far-end OTU. All services of a service provider can be accessed through one network, the robustness requirements such as mobile backhaul and a special line for a big customer are met, management is convenient, cost is low, bandwidth is allocated flexibly, capacity is large, and the accessing distance is long.

The invention discloses a content delivery method, a content delivery device and a content delivery system, and relates to the technical field of communication. The problem that an edge cache server is overloaded due to too many accesses in the prior art is solved. The content delivery method comprises the following steps: a first center node acquires to-be-delivered content in a first content delivery network CDN and operation statistical data in a second CDN, wherein the operation statistical data is statistical data of accesses to the to-be-delivered content in the second CDN, and the first center node belongs to the first CDN; the first center node gets the delivery result of the to-be-delivered content according to the operation statistical data and status information of all edge nodes in the first CDN, wherein the delivery result includes at least one determined to-be-delivered edge cache server and content needing to be delivered to each to-be-delivered edge cache server; and the first center node delivers content needing to be delivered to each to-be-delivered edge cache server in the to-be-delivered content to the to-be-delivered edge cache server according to the delivery result.

An embodiment of the invention discloses a method, a device and a transmission system for transmitting and receiving a data block. At a transmitting terminal, the transmitting terminal extends a temporary flow identity (TFI) field and / or an uplink state flag (USF) field in a block sequence number (BSN) field of a data block header, and transmits the data block which comprises the extension field to a receiving terminal. Correspondingly, at the receiving terminal, the receiving terminal receives the data block, analyzes the data block, obtains the TFI field and / or the USF field from the BSN field of the data block header, combines an extension bit of the TFI field obtained through analysis with a data bit of the TFI field in the data block header so as to obtains an extended TFI value, and combines an extension bit of the USF field with a data bit of the USF field in the data block header so as to obtain an extended USF value. According to the embodiment of the invention, requirements of a large number of terminal accesses can be met.

The invention provides a public Internet access system and a public Internet access method based on software definition. The access system comprises a client, an access agent module, a network adapter, a user center, and a dispatching center. A user is connected with the user center and the dispatching center through the client, and is connected with the access agent module through the client. The access agent module is connected with public Internet access resources through the network adapter. The system and the method of the invention achieve the goal of turning the Internet into demand-based public infrastructure, and meet the access requirement of user terminals, service systems and cloud computing platforms for public Internet access resources. Centralized control on whole-network data forwarding and data forwarding based on software definition are realized, and a data packet can be forwarded to any Internet access across the country according to a pre-programmed forwarding strategy. Separation between service system and physical location is realized, and the problem that the construction cost and maintenance cost are high for distributed across-region deployment of a complex service system can be effectively solved.

The invention discloses a method and a device for controlling safety access to Java applications. The method includes: a JVM (java virtual machine) generates an extension security access policy file according to authority description information in a Java archived file, resource access authority information of components in the extension security policy file is provided with authorization constraints, and the authorization constraints indicate that the corresponding component needs to be imparted with resource access permissions of the called components when calling specified operations of the other specified components; when the JVM receives a request of a first component to call a second component and the corresponding component is already loaded, the JVM judges according to the extension security access policy file; and when the current call meets the corresponding authorization constraints, the JVM imparts the resource access permission of the second component to the first component according to the corresponding authorization constraints, and the call is subjected to security access control. By the method and device, flexibility in deployment of Java safety mechanism can be improved and users' access needs can be met within security control range.

The invention relates to a long-distance medicine supply system which comprises a data center and a front end system, wherein the data center is in signal connection with the front end system and is used for collecting, storing, processing and transmitting medicine circulation data, and the front end system is used for realizing management operations such as medicine storage, counting, inventory and void inventory and the like. The invention also relates to a long-distance medicine supply method. The structure of the system combining the data center and various front ends has the advantages of being capable of realizing information centralized management, being beneficial to controlling and information sharing, and reducing turnover links and intermediate cost due to direct supply of physical distribution. The structure not only can be used for supplying medicines and but also can be applied to the supply of other goods and materials.

The invention provides a method and a device of lateral traffic isolation between terminals in an intranet. The method includes: when access equipment receives an ARP message, determining whether lateral isolation-operation is carried out on the ARP message according to a pre-stored horizontal-isolation strategy, wherein the horizontal-isolation operation includes at least one part of the following parts: discarding the ARP message sent by a terminal, sending an ARP response message to the terminal of the ARP request message for replying with a gateway MAC address, and modifying a destinationMAC address of the gratuitous ARP message, which is sent by the terminal, as the gateway MAC address and sending the same to gateway equipment; and if the gateway equipment receives the message, determining, by the gateway equipment according to the pre-stored horizontal-isolation strategy, whether the horizontal-isolation operation is carried out on the message. Therefore, isolation of horizontaltraffic between the terminals in the intranet is realized, a shared environment of the intranet is broken, and wide-range propagation of viruses in the intranet is reduced or even avoided; and operation of configuring different VLANs (Virtual Local Area Networks) for all terminals does not need to be carried out, and configuring operation simplification is facilitated.

The invention discloses a main and backup line switching system for a radio frequency adapter and a transmitter and an implementation method thereof. Based on the characteristics of high speed and always online of the GPRS (general packet radio service) wireless communication technology and by means of a network, the switching between main and backup lines can be realized so that the equipment maintenance does not occupy the use time of users, the normal maintenance and overhaul of the equipment can be realized in the mode of switching between the main line and the backup line; a remote monitoring center monitors the parameters of each component of the system in real time through a GPRS wireless monitoring unit and sends control instructions to each component through the GPRS wireless monitoring unit so as to timely alarm and solve the problem. By the adoption of the invention, the traditionally manned patrol mode is changed, human resource is saved, and the problem that transmitters are widely distributed, mostly distributed in rural and remote areas with complicated surrounding environments and are in an unattended state can be overcome.

The invention relates to a service bearing method and system for a heterogeneous fusion wireless network. The method comprises the following steps of acquiring network parameters of a wireless networkin service communication requirements; judging whether a service is accessed to the heterogeneous wireless network or not according to the network parameters of the wireless network in the communication requirements; if yes, sending the service to the heterogeneous wireless network by utilizing a heterogeneous wireless network bearing strategy; and if not, ending the operation. According to the technical scheme provided by the invention, heterogeneous fusion is carried out on a power LTE230MHz system network, a power LTE1.8GHz system network and a government enterprise LTE1.4GHz system network, the advantages of different wireless networks are fully utilized, the technical advantages of different wireless networks are exerted, the reliability of network transmission is improved, the service quality of the service is improved, more service access requirements are met, and furthermore, network resource sharing is realized, and great significance is achieved for improving the intelligentlevel of power distribution and utilization.

The embodiment of the invention discloses a site access method and device, a site registration method and device, equipment and a storage medium, and belongs to the technical field of the Internet. The method comprises the steps of obtaining a target domain name and a target area identifier corresponding to a first access request; querying a target address corresponding to the target domain name and the target region identifier according to the corresponding relationship; and triggering the first terminal to access the target site server indicated by the target address according to the targetaddress. According to the invention, the site server deployed based on the cloud technology is accessed by analyzing the domain name and the region identifier, so that the terminal can access the target site server corresponding to the target domain name and belonging to the target region instead of randomly accessing the site server in any region corresponding to the domain name, and the site access pertinence is improved. From the perspective of the terminal, the site server of the region can be accessed by setting any region as the target region, so that the flexibility of site access is improved.

The invention relates to a cross-subnet access control method of an electric power mobile terminal. The method includes the steps that (1), system initialization is performed; (2), an access request is put forward by the mobile terminal, registration is performed at a gateway of subnets, and the validity of an attribute certificate is verified to obtain an access right; (3), the attribute certificate is broadcast into the subnets, and according to a threshold structure, nodes inside the subnets verify the attribute certificate of the terminal and judge whether the access request of the terminal is responded or not; (4), ciphertext is calculated and transmitted to the terminal, and responding data are calculated according to the ciphertex and a decryption secrete key. Anonymous access of the mobile terminal and switching among the multiple subnets are flexibly achieved, corresponding access rights are set flexibly for the terminal according to the attribute of the terminal, and different threshold values can be set for the different subnets so as to meet respective access requirements.

The invention relates to a low-energy-consumption network design method based on node dependency and ONU modular dormancy, and belongs to the technical field of optical wireless hybrid network communication. The method aims at the problem that the existing energy saving mechanism based on node dormancy cannot effectively reduce network energy consumption, through judging the size of current working load of the ONU and the size of the dependency between the dormant ONU and the wireless router, allows the node to enter the dormant state by performing load transfer based on a front-end mesh, and further reduce the energy consumption of the whole network through combining with the modular dormancy technology in the DBA algorithm. According to the method, on the basis of being capable of effectively reducing the energy consumption of the whole network, the access requirement of the user and the connection requirement of the network are met, and meanwhile obvious significance is not generated for time delay of the network data package.

The invention relates to the technical field of databases, and provides a database backup method, a database restoration method and a storage medium. The database backup method comprises the followingsteps: carrying out full backup on a database; performing periodic incremental backup on the database; and periodically synthesizing more than two times of incremental backups into a full backup to obtain a new full backup. The database restoration method comprises the following steps: directly mounting a memory of the back-end platform on a database access terminal; constructing a database operation environment on the database access terminal; and enabling the database access terminal to directly access the database from the memory of the back-end platform. According to the method, the backup data volume of the database can be greatly reduced, the database restoration time is shortened, and the access time of database failure or restoration is prolonged.

The invention provides a power grid unified service platform system, which relates to the technical field of Internet and comprises a service channel access layer, an access layer, an application layer, a service layer and a resource layer which are sequentially connected from top to bottom, the service channel access layer is connected with various service channels; the access layer is provided with a Web application protection system and / or an intrusion prevention system and / or a firewall; the application layer constructs a corresponding service channel application cluster for each service channel; the service layer constructs different business application clusters for different power grid businesses and provides power grid business services for users; the resource layer is used for storing service resources so as to generate and / or call the service resources when the service layer provides power grid business services for users, the technical problems that the access speed is low and a power grid unified service platform is prone to collapse are solved, and the technical effects of meeting the access requirements of the users from various service channels and improving the user experience are achieved.

A remote multimedia network transmission platform comprises an SIP signaling scheduling server, a streaming media fowarding server, distributed ICE middleware and a distributed storage and analysis system based on Hadoop multimedia data. The SIP signaling scheduling server is in communication with the streaming media fowarding server through the distributed ICE middleware. The streaming media fowarding server is used for receiving and distributing streaming media data. The distributed storage and analysis system based on the Hadoop multimedia data is used for storing the multimedia data which are saved and uploaded by the streaming media fowarding server. The distributed storage and analysis system comprises a MapReduce distributed processing engine, and is used for realizing distributed transcoding processing on multimedia data stored in a HDFS, namely, format conversion on the multimedia data based on an ffmpeg. The remote multimedia network transmission platform is capable of realizing storage and analysis of a large number of multimedia data effectively, low in cost and high in efficiency.