96 results about "Service restoration" patented technology

The invention discloses a route retransmission realization device and method, and switching equipment. The device comprises a plurality of service boards, a primary retransmission board, a standby retransmission board, a primary control board and a standby control board, wherein the standby control board is used for starting the primary-standby switching when detecting a failure of the primary control board, and establishing an information channel between the standby control board and the primary retransmission board or standby retransmission board; and the primary control board or standby control board is used for starting the primary-standby switching when detecting a failure of the primary control board, establishing an information channel between the primary control board or standby control board and the standby retransmission board, and establishing an information channel between the standby retransmission board and the service boards, thereby realizing data message interactions between the standby retransmission board and the service boards. When the primary control board fails, the retransmission service of the device can not be interrupted. When the primary retransmission board fails, the service boards are simple and quick to switch, thereby shortening the service interruption time, increasing the service restoration speed and reducing the time delay.

A real time thermal monitoring and prediction system (TMPS) is provided for use in monitoring and operating a transformer. The TMPS may be used to estimate a maximum loading level for the transformer over a future time period using a dynamic thermal model for the transformer and ambient temperature forecasts. The transformer may be loaded to its maximum loading level during power congestion or a service restoration process.

The invention discloses a communication safety guard model for an electric power optical transmission network and a control method for said model. The communication safety guard model includes a wide area information collecting model, a communication network reliability evaluation model, a communication fault analysis specialist knowledge base, a communication risk monitoring and pre-warning model and a plurality of communication safety guard lines. By adopting the wide area information collecting model for collecting topological information, link information and alarm information of the electric power optical transmission network in real time, by adopting the communication risk monitoring and pre-warning model and a decision control model for performing communication network reliability and fault positioning analysis and generating intelligent coordination processing strategy and by employing overall resource scheduling and the communication safety guard lines for cooperatively processing and timely eliminating communication faults, service restoration is realized. The invention can solve problems of coordination processing of multiple faults of a complicated transmission network and quick restoration of service paths in a trans-region large power grid interconnection background.

The invention discloses a service state consistency maintenance method based on transactions. The service state consistency maintenance method supports restoration attribute variety by introducing and distinguishing four restoration attributes, dynamically confirming the attribute situations of service examples in the dispatched composite service example set and any other relevant service examples in two sets according to restoration attributes, timestamp size and dynamically-detected conflict relation by establishing a rollback composite service example set and a non-rollback composite service example set with a waiting queue, so that service concurrence, destruction, recovery and submitting in a composite service engine are finished. The service state consistency maintenance method supports the service restoration attribute variety and various control modes, can ensure the serializability and restorability of concurrence dispatch, avoid a starvation phenomenon, permit concurrence dispatch and execution of multiple composite service examples executing irrecoverable transactions and support dynamic conflict detection of the service examples and can effectively reduce linkage destruction of long-term running transactions.

The embodiment of the invention discloses a network communication functional abnormity processing method. The network communication functional abnormity processing method comprises: receiving the abnormal indication information sent from a modem by an application processor, wherein the abnormal indication information indicates that the modem detects that network abnormity is caused by failure of network registration; according to the abnormal indication information, determining whether the preset number of network abnormity caused by failure of network registration occurs in the preset time; if the preset number of network abnormity caused by failure of network registration occurs in the preset time, acquiring the first protocol stack used by the modem at present by the application processor; closing the first protocol stack by the application processor, and starting the second protocol stack to perform network registration; if network registration is successful, recording the current location information by the application processor; and if network registration fails, recovering the on/off state of the default protocol stack or restoring the modem by the application processor. The embodiment of the invention also discloses an application processor and a mobile terminal. The network communication functional abnormity processing method, the application processor and the mobile terminal can reduce the time for data service restoration.

The invention discloses a method and a device for service restoration after a PCRF (Policy and Charging Rules Function) fault, and relates to the technical field of information. According to the method and the device for service restoration after the PCRF fault, performance consumption of a PCRF network element can be reduced. The method comprises the steps of when a P-CSCF network element receives a VoLTE service request sent from a user terminal, firstly inquiring a currently registered PCRF network element of the user terminal and judging whether the PCRF network element is in fault by the P-CSCF network element; if the PCRF network element is in fault, sending a notification message to an HSS through an S-CSCF network element, wherein the notification message carries a disaster recovery identifier, and the notification message is used for notifying the S-CSCF network element and the HSS that the PCRF network element is in fault; then sending an IDR message to an MME by the HSS, wherein the IDR message is used for indicating the MME to send an indication message for load release to the user terminal; and finally, when the user terminal receives the indication message for load release sent from the MME, registering a new PCRF network element again by the user terminal. The method and the device are applicable for service restoration after the PCRF fault.

A particular computing device providing service to a user device may become unavailable. If a computing device becomes unavailable, a backup computing device may be requested to provide services to user devices on a temporary basis to allow call completion. Messages to the backup computing device instance may indicate the basis for service issues and prompt further action by the computing device, such as registration with an alternative computing device or re-registration with a computing device that was determined to be unavailable.

The invention discloses a method and a device for realizing terminal called service restoration. Triggering of a terminal to re-register a standby P-CSCF via a PCRF is not needed, deployment difficulty is reduced, and resource is saved. The method comprises steps in that, a standby P-CSCF / SBC receives a request message sent by an S-CSCF, and the request message is generated when a fault of the P-CSCF / SBC appears, wherein the P-CSCF / SBC is registered by a user terminal corresponding to a called request received by the S-CSCF; the standby P-CSCF / SBC determines a home gateway of the user terminal according to a mapping relationship between pre-established gateways and user terminals belonging to the gateways; and the standby P-CSCF / SBC sends a trigger message to the home gateway via a TWAMP link between the standby P-CSCF / SBC and the home gateway, and the trigger message is used to trigger the user terminal to re-register to the standby P-CSCF / SBC to carry the called service of the user terminal.

A multi-faults service restoration method for a power distribution network overcomes the defect that a traditional service restoration method for the power distribution network cannot solve multi-faults. The method includes the steps of performing multi-faults judgment on multi-faults with processing unfinished, to form many multi-faults and many single-faults; then performing unaided fault recovery area division on the multi-faults, and performing power restoration on unaided fault recovery areas one by one; and after the multi-faults are processed, performing power restoration on each single-fault. By adopting the method, the service restoration efficiency is greatly improved, thus contributing to the real-time of service restoration; the factor of load balance is considered when common power restoration lines are decoupled, so that the load rates of the power restoration lines participating in service restoration are more similar after service restoration, and therefore the power supply reliability of the power distribution network is improved.

A control system and method for sectionalizing switches and pulse-testing interrupter/reclosers in a distribution grid feeder which enables fault location, isolation and service restoration without requiring an external communications infrastructure to pass information between the switches. The method includes switches entering an armed state when they experience a high fault current during an initial fault event. Then, when the interrupter/recloser runs its test pulse sequence, any armed switch counts all test pulses as fault pulses, while non-armed switches count the test pulses as load pulses. Switches open to isolate the fault based on threshold values of fault pulse count and load pulse count. When an initially active interrupter/recloser completes its test pulse sequence, another interrupter/recloser begins its sequence, and all switches reconfigure their threshold values based on the new interrupter/recloser. Interrupter/reclosers after the initial device use a fast close-open event if necessary to arm some switches for proper fault-count opening.

The invention provides a dynamic service restoration method and device, and a software defined network SDN controller. The method is applied to the SDN controller, and comprises the following steps of: obtaining a service interruption instruction in a transmission network, and determining a service list of services influenced by the service interruption; and, performing service path restoration calculation of the services in the service list by adopting multiple pre-constructed service restoration threads and multiple pre-constructed first service data required by service restoration, and completing service path restoration of each service. The dynamic service restoration provided by the invention has high efficiency; the service restoration time is ensured to be in a required range; and thus, the rapid restoration purpose is achieved.

Fault isolation and service restoration in an electrical grid are provided. An approach for receiving a notification message including a state of an electrical component on an electrical grid, and determining, by a computing system, a command message including at least one action to take in response to the state of the electrical component, is described. The approach further includes sending the command message to at least one of the electrical component and other electrical components on the electrical grid.

A control system and method for a group of interconnected feeders which enables fault location, isolation and service restoration without requiring each switch to have topology knowledge of devices in adjacent feeders. The method defines, for each switch, connectivity and X/Y directional information about its neighboring switches and propagates this information throughout each feeder. A leader device is also determined for each feeder. Information about topology of adjacent feeders is not needed by all devices. Only normally-open tie switches which define a boundary between two adjacent feeders have knowledge of the devices in both feeders. Switches which open during fault isolation automatically find open tie switches in a direction opposite the fault, and request service restoration downstream of the fault by providing power from an adjacent feeder. Leader devices ensure an overload condition is not created before initiating opening and closing operations of switches downstream of the fault.

The invention provides a method for utilizing network storage data. The method includes the following steps: hashing is performed on IDs of data servers in a cloud platform storage system according to a predefined hash algorithm, and each data server is distributed on a ring of a whole Hash value range; each data server periodically sends a heartbeat message to a host node, and the host node manages topological information of a cloud platform; and a client accesses the host node to obtain the topological information of the cloud platform and cache locally, performs hashing calculation on file names, determines the data server where a corresponding small file is and performs reading or writing operation. The invention proposes a novel small-file-oriented cloud platform storage system and storage method, reduces the number of times of network connection for continuously reading and writing small files, storage is relatively lightweight, delay is relatively short, the host node load is reduced, service restoration is relatively fast after a failure, and availability of the whole storage system is improved.

The invention discloses a service level control method and system of an online service system. The service level control method comprises: a service degrading step: when it is judged that the system state of the online service system is reduced, reducing the quality of service of the online service system to a level corresponding to the current system state; and a service restoration step: when it is judged that the system state is upgraded, pausing to restore the quality of service to the level corresponding to the current system state. Therefore, by adoption of a quick degrading and slow upgrading level control strategy, the adverse effects caused by the jitter and repetition of the system state of the online service system can be prevented, and more time can be provided for the online service system to further restore the system state.

The invention provides a method for dynamically adjusting data service clusters on basis of a data service access condition. The method comprises the following steps: 1, monitoring the data service access condition in real time, and respectively recording the access data of each service; 2, self-defining a single adjusting strategy or combined adjusting strategy of access data thresholds according to the access data; and 3, when the access data of a certain service satisfies the adjusting strategy set in the step 2, carrying out dynamic data service cluster adjustment so as to automatically adjust and deploy the service to a corresponding service cluster. According to the method provided by the invention, the cold, warm and hot data can be well distinguished, and services are provided according to the demands of the users, so that the manual intervention of the data service cluster adjustment is avoided; and strategies are matched according to the service using condition to carry out adjustment in real time, so that the data service cluster resource utilization rate is improved. Moreover, the method is capable of solving the problems that the services are unusable and the service restoration period is long under the large concurrent access condition of the data services, and improving the usability and stability of the services.

The invention discloses a network communication functional abnormity processing method. The network communication functional abnormity processing method comprises: acquiring the first protocol stack used by a modem at present by an application processor according to the abnormal indication information sent from the modem, wherein the abnormal indication information indicates that the modem detects that network abnormity is caused by failure of network registration; closing the first protocol stack by the application processor, and starting the second protocol stack to perform network registration, wherein the second protocol stack is the protocol stack except for the first protocol stack among at least two protocol stacks supported by the modem; if network registration is successful, recording the current location information by the application processor; and if network registration fails, recovering the on/off state of the default protocol stack in the at least two protocol stacks supported by the modem and/or restoring the modem by the application processor. The embodiment of the invention also discloses an application processor and a mobile terminal. The network communication functional abnormity processing method, the application processor and the mobile terminal can reduce the time for data service restoration.

The embodiment of the invention discloses a service restoration method and apparatus. The method comprises the following steps that: a first functional entity obtains a first event notification message, wherein the first event notification message carries an identifier of a first target functional entity to be repaired; the first functional entity queries a first replaceable minimum functional entity and a first service restoration strategy corresponding to the first target functional entity represented by the identifier from a pre-created first corresponding relationship set, wherein the first corresponding relationship set comprises the first target functional entity, and a corresponding relationship between the first replaceable minimum functional entity and the first service restoration strategy; and the first functional entity executes the first service restoration strategy on the first replaceable minimum functional entity. By adoption of the service restoration method and apparatus disclosed by the embodiment of the invention, the service restoration can be implemented quickly and accurately, and the duration of service failure is effectively shortened.

The invention discloses an optical network service restoration method and system based on a resource convergence graph. The method includes the steps that failure nodes in an optical network are regularly detected, and the failure nodes are distinguished as intermediate nodes or convergence nodes; if the failure nodes are the convergence nodes, the convergence nodes are reselected, and synergetic first topological information of the optical network and a packet-based network is acquired; weight values of multiple paths are calculated through weight values of multiple network links in the first topological information, and the path with the minimal weight value is selected as the finally-selected path. According to the method, in order to solve the problem that service restoration is difficult after failure occurs in the packet-based network borne by the optical network, the path with the minimal weight value from a source node to a host node calculated through the resource convergence graph is used for service restoration, network services can be quickly restored after network nodes fail, overall cost is reduced, and the utilization rate of network resources is increased.