194results about How to "Avoid unavailable" patented technology

The embodiment of the invention discloses a method and a system for out-of-band upgrading. The method for out-of-band upgrading comprises the following steps: switching a firmware chip onto a firmware upgrading controller through an isolation switching circuit; and upgrading the firmware chip through the firmware upgrading controller. The out-of-band upgrading system comprises a south bridge chip, the firmware chip, the isolation switching circuit and the firmware upgrading controller, wherein the isolation switching circuit is used for switching the firmware chip onto the firmware upgrading controller; and the firmware upgrading controller is used for upgrading the firmware chip. The embodiment of the invention provides quick out-of-band upgrading channel for the firmware chip, and can complete upgrading of the firmware chip without entering an operation system, facilitate upgrading of the firmware chip, and improve the reliability of the firmware chip.

The invention relates to a method, device and system for controlling a device. The method comprises the steps of establishing connection with a controlled device; judging whether an application program of the controlled device is locally stored; obtaining the application program of the controlled device from the outside if the application program of the controlled device is not locally stored. After connection with the controlled device is established, the application program of the controlled device can be automatically obtained, so that the situation that the controlled device cannot be used due to lock of the application program is avoided.

Disclosed is a system, method, and program for limiting input/output (I/O) requests from an application program to a storage device to facilitate the processing of data in memory. A determination is made as to whether an amount of a set of data in memory exceeds at least one threshold. At least one of multiple paths to the storage device is indicated as blocked to I/O requests from the application program. Each indicated blocked path is available for processing the set of data in memory. An I/O request from the application program is received and a determination is made as to whether the received I/O request intends to access the storage device using one indicated blocked path. The I/O request is denied access to the storage device via the blocked path.

The invention relates to a mixing method in multi-MCU video conversation system. Wherein, (1), all MCU register to gatekeeper, while each MCU has one-to-one connection with other MCU and each MCU maintains one connection list with other MCU and one local client list with mixing demand; (2), MCU based on local mixing client list linearly layers the voice data sent from local client, and codes and sends result to each opposite MCU; (3), MCU reduces the sent voice data from mixed result to be mixed with the decoded voice from opposite MCU, to be coded and sent to target client. The invention can reduce the transmission jump number of voice data and avoid single-point accidence of main MCU, with high reliability.

The invention discloses a PaaS cloud implementation method based on containers. The method comprises following steps: saving configuration information of all containers and providing disposition; a deployment strategy ensuring that multiple containers under the same APP are scattered across different hosts; performing management on the host and containers and one physical cluster being corresponding to multiple projects, etc.. Therefore, the introduction of containers into the cloud computing basic resource delivery to provide PaaS layer services is realized, reducing waste of resources caused by the traditional PaaS products using virtual machines, increasing disposition efficiency and reducing exploitation and test period for users; the method is a lightweight VM solution scheme based on process containers, realizing a resource isolation and quota of an application program grade; Compared with the traditional cloud infrastructure system implementation, the container-based cloud service system has lower cost of overall ownership, higher resource utilization and is more stable and reliable, which further enhances the virtualization efficiency, improves resource utilization, accelerates enterprise devops process, and provides fast and effective support services for applications.

The invention discloses a split mounting type prefabricated reinforced concrete construction temporary road, which comprises a box type member, wherein a reinforced concrete box type member is arranged in the box type member; reinforcement of the reinforced concrete box type member is welded and fixed to the box type member; four angular points of the reinforced concrete box type member are provided with omega-shaped lifting rings respectively; and water discharge holes are also formed at the omega-shaped lifting rings. The split mounting type prefabricated reinforced concrete construction temporary road has the beneficial effects that: through development of the split mounting type prefabricated reinforced concrete construction temporary road, a reinforcement welding net, angle steel and concrete are formed into a whole, so that the performances of the steel and the concrete are fully utilized, particularly, the periphery of the construction temporary road is protected by using the angle steel, and the unavailability due to corner stripping caused by collision or other reasons during use of the construction temporary road is avoided; and a temporary road module is manufactured by using a shaped steel mould, and meanwhile, a special formwork and a strengthening system are matched, so that the construction quality of the corner part and the entire temporary road is effectively guaranteed.

The invention discloses a method for determining a preset routing, which comprises the following steps that: after a preset routing service request of a PCC (path calculation client) is received, a PCE (path calculation element) carries out routing calculation and stores a calculated preset routing and the PPC is informed of the preset routing; and when a network state is changed or a configured preset routing calculative strategy is triggered, the PCE carries out routing calculation again according to the constraint conditions of a PCC request and replaces the stored preset routing with a novelly calculated preset routing and the PPC is informed of the novelly calculated preset routing. The invention also discloses a device for implementing the method. In the invention, the PCE can inform the PPC of the updated preset routing, so that unavailability of the preset routing is avoided. In the invention, dynamic updating of the routing can also be realized, so that network planing and management are more convenient.

The invention belongs to the communication technology field, and especially relates to a method of designing an OFDM-TDCS waveform with low PAPR (Peak-to-Average Power Ratio) in the field of cognitive radio technology. According to the method, the reasonable design of a pilot frequency pattern prevents all pilot frequencies from being not available due to pilot frequency shifts; through optimization of a pilot frequency sequence, a PAPR value of a signal is reduced, and distortion of the pilot frequency sequence caused by PAPR control is minimized; and the PAPR and outband attenuation of the signal can both meet the requirements of a cognitive radio system by combining noise shaping amplitude limit with outband radiation control.

The invention discloses a remote video lesson giving method supporting mobile terminal off-line play. The method comprises the following steps: 1) a server generates a video file list for video files and establishes a student learning time database; 2) the server generates a mobile terminal video play program bound with the video file list and student information, and distributes the mobile terminal video play program and the video file to a mobile terminal; 3) the mobile terminal plays the video file by using the mobile terminal video play program and locally records the video play time; and 4) the mobile terminal transmits the locally recorded video play time and student information to the server when connecting to the Internet, and the server accumulates the received video play time to the student learning time database corresponding to the student information. The method disclosed by the invention has the advantages of supporting off-line time keeping, being simple and reliable for time keeping and being simple and convenient to use.

The invention relates to a data secrete sharing system and method based on a core network. The method comprises the steps of hiding target information to be sent in shelter information at the information publish end and publishing the shelter information into specific network application. When an innocent user downloads resources in the specific network application, downloaded information passes through a forwarding router, and the forwarding router can recognize whether the downloaded information is the shelter information. If the downloaded information is the shelter information, the shelter information is copied, prime information is sent to the innocent user, and the copied shelter information can be sent to the real information receiving end through a background server. The information publishing end and the router participate in a hidden handshake process, and the information receiving end doesn't participate in the process. The method improves the covert communication efficiency, improves opponent detection difficulty and improves information transmission hiddenness by hiding the target information to be sent in the shelter information.

The invention discloses a method and device for guaranteeing reliable operation for Ethernet ring. Main node is restarted by following steps: main node of Ethernet ring network acquires network state before restarting and network configuration information after restarting; the main node blocks the data relay function of control VLAN of self ring port and protection service VLAN, adds the ring port in control VLAN and protection service VLAN; the ring port comprises main port and slave port; data relay function is opened for control VLAN of ring port; the link state is detected for validating entirety; protection service VLAN data relay function of ring port or main port is opened according to the detection result; other node is notified to update MAC address list. The inventive method effectively guarantees normal and reliable operation of Ethernet Ring network.

Embodiments of the invention disclose a method and a device for processing superblocks based on NAND flash. The method comprises: detecting whether bad blocks exist in the superblocks; when bad blocksare detected, according to a preset rule, obtaining a target sporadic data block from a sporadic data block pool, using the target sporadic data block to replace the bad block; recording the block number of the superblock, information of a NAND flash unit to which the bad block belongs to, and the block number of the target sporadic data block, to manage the replaced superblock. The embodiments solve a problem in the prior art that available storage space is rapidly reduced in a storage device caused by the number of bad blocks in the superblock is increased. Through using the target sporadicdata blocks to replace the bad blocks in the superblock, a new superblock is obtained, excessive bad blocks accumulated in the superblock are prevented, so that storage space is saved, effective utilization of the storage space in the storage device is improved, and the storage device works in higher efficiency.

The embodiment of the invention provides a data migration method and device, an electronic device and a readable storage medium. The method comprises the steps that current target non-transaction tables to be migrated are obtained from non-transaction tables included in a source database, read locks are added for the target non-transaction tables, the target non-transaction tables are migrated toa target database, the read locks of the target non-transaction tables are released, first log records corresponding to the target non-transaction tables are obtained after migration of the target non-transaction tables is completed, and modification operation is conducted on the target non-transaction tables in the target database according to the first log records. By applying the embodiment, the read locks are added only for the current target non-transaction tables to be migrated and are released after the migration of the target non-transaction tables is completed, and the phenomenon canbe avoided that source databases are not available for a long time.

The invention provides a business index query method and device, equipment and a storage medium, and relates to the technical field of data processing. The method comprises the steps: acquiring a service index query request initiated by a user based on a client of a service system, wherein the service index query request is used for querying a service index of a target service state under a target service type and comprises a to-be-queried service index; calling basic index data corresponding to the business index query request from a database of the task processing system, wherein a basic index corresponding to the basic index data is used for representing a basic element forming the business index to be queried; and determining service index data corresponding to the to-be-queried service index according to the basic index data. According to the scheme, the reliability of the service index query system can be effectively improved, so that the accuracy of service index query is improved under the condition that service requirements are variable.

The invention discloses an electric locking device, a railway vehicle door and a working method. The electric locking device comprises a planet reducing separation and reunion assembly, an inner swingarm mechanism, a spring bolt, a lock body and a lock catch. The planet reducing separation and reunion assembly comprises a ratchet, a planet wheel and a sun wheel. The planet wheel is engaged to theratchet and the sun wheel, the sun wheel is connected to a power device for driving the sun wheel to rotate, the planet wheel is connected to the inner swing arm mechanism through a planet carrier, the ratchet is also connected to a ratchet braking device, the ratchet braking device comprises a ratchet, the spring bolt is connected to the lock body, an elastic device which makes the spring bolt be far away from the lock catch is also arranged between the spring bolt and the lock body, and a one-way device which makes the sun wheel only rotate toward a locking direction of the spring bolt is also arranged between the sun wheel and the lock body. High speed small torque power of a reducing motor is converted into low speed large torque power through the reducing device to drive the spring bolt to pressurize the lock catch mounted to a door leaf, so that the pressurizing process of the door leaf and a door frame is finished. In the pressurizing process, the reducing motor is powered offfor protecting the motor.

The invention relates to a digital identity management method and device, a storage medium and electronic equipment, and the method comprises the steps: receiving a digital identity building request transmitted by a user side, and enabling the digital identity building request to comprise a plurality of groups of asymmetric secret key pair information; under the condition that it is determined that the digital identity creation request is a legal request, using the multiple sets of asymmetric key pair information as digital identity content of the user side to be stored in a block chain system; generating a digital identity identifier according to all data included in the digital identity creation request, and establishing a corresponding relationship between the digital identity identifier and the digital identity content; and sending the digital identity identifier to the user side. The digital identity created by the method can correspond to a plurality of asymmetric key pairs, anda user can verify the digital identity of the user through the plurality of asymmetric key pairs, so that the problem that the digital identity is unavailable or out of control under the condition that a unique key pair corresponding to the digital identity is lost or leaked is avoided.

The embodiment of the invention discloses an electronic certificate processing method and device, equipment, a platform and a medium, and relates to the technical field of block chains, and the methodcomprises the steps: obtaining an electronic certificate processing transaction request, wherein the electronic certificate content in the electronic certificate processing transaction request is generated based on a preset certificate content template deployed in a block chain system; and executing the electronic certificate processing transaction request to generate electronic certificate processing transaction data, and adding the electronic certificate processing transaction data to the block, the processing operation information corresponding to the electronic certificate processing transaction request being added to a life cycle record field in a preset certificate content template. According to the embodiment of the invention, effective supervision processing of the electronic certificate data can be realized, so that data storage and interaction are more convenient and reliable.

The invention relates to the technical field of security and protection, and provides a human face and fingerprint recognition access control system. The human face and fingerprint recognition accesscontrol system includes a human face recognition trigger module, a human face image acquisition module, a human face image recognition module, a resident information server, a fingerprint recognitiontrigger module, a fingerprint acquisition module, a fingerprint recognition module, a controller and an access control module, the human face recognition trigger module, the human face image acquisition module and the human face image recognition module are connected successively and finally connected with the controller, the fingerprint recognition trigger module, the fingerprint acquisition module and the fingerprint recognition module are connected successively and finally connected with the controller, the fingerprint recognition module and the human face image recognition module are bothconnected with the same resident information server, and the controller controls the access control module. According to the human face and fingerprint recognition access control system, an entrance guard is controlled through the fingerprint and human face recognition system, the entrance guard can only be opened after double verification, safety of the entrance guard is effectively improved, meanwhile, the condition of the entrance guard cannot be opened due to losing of traditional integrated circuit cards or entrance guard password forgetting is avoided, and use of users is convenient.

The invention relates to a Kafka message uniqueness method based on Redis. Redis is utilized to solve the problem of message repeated consumption in Kafka. The method comprises the steps that: Kafka receives message data; a distributed vote algorithm is adopted to filter the received message data; business logic processing is carried out on the message data after the filtering; and whether the business logic processing is wrong is judged, if yes, the message data wrong in business logic processing is deleted, and if not, the process is ended normally. Compared with the prior art, the Kafka message uniqueness method has the advantages that the message repeated consumption is avoided, the handling capacity is high, and the reliability is high.