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131results about How to "Recover in time" patented technology

Data access method and device as well as distributed database system

The invention provides a data access method and a device as well as a distributed database system. The data access method comprises the following steps of: when receiving a request of adding a databank server or deleting a databank server, carrying out data migration on the databank server to be added or the databank server to be deleted; generating a second corresponding relationship according to the data migration, storing the second corresponding relationship and a first corresponding relationship before the data migration, wherein the first corresponding relationship is used for indicating the corresponding relationship between the data and the server before the data migration, and the second corresponding relationship is used for indicating the corresponding relationship between new data which is generated according to the data migration and the server; receiving a data access request in the data migration process; and according to the data access request and the stored first corresponding relationship and second corresponding relationship, determining the server where the data to be accessed are located, and accessing the data to be accessed on the determined server. By utilizing the data access method, the capacity expandability of a system is improved.
Owner:SHENZHEN GLOBEBILL TECH CO LTD

AGV device-based logistics multi-task control system and control method

The invention discloses an AGV device-based logistics multi-task control system in the field of logistics control management. The system comprises a 3DP sand mould printing unit comprising multiple 3DP sand mould printers used for performing 3D printing operation in a sand box, a later processing unit used for performing solidification and sand removal operations on the sand box subjected to the 3D printing operation, full box caching stations used for temporarily storing the sand box subjected to the 3D printing operation, empty box caching stations used for temporarily storing the empty sandbox processed by the later processing unit, and an AGV device used for transferring the sand box among the 3DP sand mould printing unit, the later processing unit, the full box caching stations and the empty box cashing stations. Through safe connection of an AGV and other devices, and information binding and transmission of the sand box and a sand mould, the design and implementation of transfertask scheduling of the single AGV under complex application conditions of multiple devices, multiple tasks, uncertain paths and the like are satisfied; and the control system can be used in loading and transporting of a 3D sand mould printing process.
Owner:KOCEL INTELLIGENT FOUNDRY IND INNOVATION CENT CO LTD

Main control board, embedded system and backup method for embedded system

The invention discloses a main control board, which comprises a master / backup selection module and a master / backup switching management module. The master / backup selection module is used for acquiring states of the belonged main control board and another main control board in an embedded system, and determining that the belonged main control board is a master main control board or a backup main control board and whether master / backup switching is needed by comparing the priority level of the acquired states of the two main control boards when the state of the belonged main control board and / or the another main control board changes. The master / backup switching management module is used for finishing the operation of switching from the master main control board to the backup main control board or from the backup main control board to the master main control board when the master / backup selection module determines that the master / backup switching is needed. The invention also provides an embedded system which comprises the two main control boards and at least one expansion module, and a backup method for the embedded system. The switching between master / backup main control boards is quickly completed when the main control board of the embedded system fails. Therefore, services can be reliably and timely recovered.
Owner:RUIJIE NETWORKS CO LTD

Automatic parking system of vehicle-mounted Ethernet and automatic valet parking method

ActiveCN111081064AAvoid the tedious process of finding a parking spaceAvoid cumbersomeImage enhancementTelevision system detailsIn vehicleParking space
The invention provides an automatic parking system of a vehicle-mounted Ethernet and an automatic valet parking method. The automatic parking system comprises an automatic parking device installed ona vehicle, a parking management system arranged in a parking lot and a plurality of cameras installed in the parking lot. The automatic parking device comprises a central controller, a first sensor module, a second sensor module and an executing mechanism module. The first sensor module is connected with the central controller through a vehicle-mounted Ethernet bus, and the second sensor module and an executing mechanism are connected with the central controller through a CAN bus. The cameras shoot parking space images and transmit the parking space images to the parking management system forparking space identification and parking space acquisition, the automatic parking device parks in a parking space according to the acquired parking space position, and obstacle identification and avoidance are included in the parking process. According to the technical scheme, time and labor consumed for finding the parking space are avoided; meanwhile automatic obstacle avoidance can be achievedin the parking process.
Owner:SHANGHAI HEQIAN ELECTRONICS TECH CO LTD

Automatic network management equipment abnormity restoring method

The invention discloses an automatic network management equipment abnormity restoring method, which comprises the following steps of: 1) entering a connecting mode and relevant information of network management equipment; 2) entering a backup of the network management equipment and an instruction for restoring configuration information; 3) setting a timing polling mode for automatically backing up; 4) regularly acquiring the relevant configuration information from the network management equipment automatically according to the entered connecting information and the entered instruction; 5) correcting whether the configuration information of the network management equipment is changed, and if the configuration information of the network management equipment is changed, entering the changed configuration information of the network management equipment; 6) setting a restoring point of the configuration information of the network management equipment; and 7) when an abnormal warning is received, automatically performing abnormity restoring on the network management equipment according to the configuration information at the restoring point. By the method, the abnormity warning processing speed of the network management equipment can be increased remarkably, and abnormity can be automatically positioned and restored accurately and quickly, so the manpower maintenance cost is saved and the risk of maintenance processing is reduced.
Owner:勤智数码科技股份有限公司

Radar feeder standing wave protector

InactiveCN102004239ATimely detection of standing wave micro-changesFast Calculation of Feeder Standing Wave RatioWave based measurement systemsMicrocontrollerArea network
The invention discloses a radar feeder standing wave protector, which belongs to the technical field of radars. The radar feeder standing wave protector comprises a digital signal processor (DSP) serving as a microcontroller, a band-pass filter, a detector, an amplifier, a benchmark, an electrically erasable read-only memory (EEROM), a crystal oscillator, a level translator, a latch, a driver, a sound-light alarm device and a power conversion unit, and also comprises a controller area network (CAN) interface module and a recommended standard-422 (RS422) interface. In work, a feeder standing wave ratio is calculated rapidly by taking the DSP as a core, so that a radar standing wave tiny change can be discovered timely, the work of a radar transmitter is stopped and sound and light alarm is performed; a standing wave ratio guard interval can be set flexibly through a CAN bus; a fault state can be reported to a monitoring station or the state is inquired and monitored through the monitoring station; therefore, the radar feeder standing wave protector is suitable for remote monitoring. In the radar feeder standing wave protector, the connection is relatively independent, the cost is relatively low, the guard interval is very convenient to modify, and circuits are highly simplified; and the radar feeder standing wave protector has expansibility in the radars of different model numbers.
Owner:WUHAN BINHU ELECTRONICS

Call maintenance method and device in active/standby switching of IP voice equipment

The invention discloses a call maintenance device in active / standby switching of internet protocol (IP) voice equipment, which comprises a media address unit configuration module, a media address unit address resolution protocol (ARP) packet trigger module and a media resource processing unit ARP packet trigger module, wherein the media address unit configuration module is used for configuring the same media IP address and the same media access control (MAC) address for active / standby media address conversion units, and dividing an internal virtual local area network (VLAN) and an external VLAN; the media address unit ARP packet trigger module is used for triggering a new active media address conversion unit during active / standby switching to broadcast free ARP packets through the internal and external VLANs; and the media resource processing unit ARP packet trigger module is used for triggering a media resource processing unit during active / standby switching to broadcast the free ARP packets. The IP voice service of two call ends is recovered by learning the MAC address of the opposite party. The invention simultaneously discloses a corresponding call maintenance method in the active / standby switching of the IP voice equipment. By adopting the scheme, the device and the method realize basically no damage to the call in the active / standby switching process of the IP voice equipment, and improve the instantaneity and the reliability of voice service.
Owner:ZTE CORP

Error tolerance method in wireless public object request proxy construction application

The invention provides a method for tolerating faults, which is applied in a wireless public object request agent structure. The method comprises: realizing the creation of a mobile terminal object duplicate under the assistance of an accessing bridge object request agent layer, utilizing an accessing bridge log recording mechanism 31of the accessing bridge object request agent layer to record and store mobile terminal object state detecting points and mobile terminal object message events, realizing the detection of mobile terminal object failures under the assistance of the accessing bridge object request agent layer, realizing the deletion of mobile terminal failure objects under the assistance of the accessing bridge object request agent layer, and realizing the recovery of the mobile terminal failure objects under the assistance of the accessing bridge object request agent layer. The method fully utilizes a CORBA error tolerant basic facility and a mechanism in an existing CORBA 3.0.3 criterion, enlarges an ORB layer of the accessing bridge in the wireless CORBA, and can be jointed with the existing CORBA 3.0.3 criterion and a wireless CORBA 1.2 criterion without slots to satisfy the demands of applying the wireless public object request agent structure on the aspects of reliable and real time performance.
Owner:HARBIN ENG UNIV

Containerized cloud resource allocation method

The invention belongs to the technical field of containerized cloud resource allocation, and discloses a containerized cloud resource allocation method, which comprises the following steps of: acquiring residual allocatable resources of all virtual machines by utilizing a task allocator through a resource acquisition module; Establishing a to-be-deployed container queue according to the arrival sequence of the to-be-allocated container services through a resource deployment module by utilizing a deployment program; wherein The main control module calculates the matching degree values of the to-be-distributed container service and all virtual machines capable of receiving the container service through the resource matching module by using a matching program; Scheduling the containerized cloud resources by using a scheduling program through a resource scheduling module; conducting data recovery on disasters in the cloud computing infrastructure through a recovery module by means of a data recovery program; storing Cloud data by using a memory through a data storage module; Andenabling the display module to utilize a display to display. Reasonable distribution and planning of use of each resource type in the resource pool can be ensured through the resource scheduling module.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH

Radio frequency treatment handle

The invention discloses a radio frequency treatment handle. Electrodes are fixedly arranged at the bottom of a handle base and are printed circuit nodes or radio frequency electrode micro-needles. The electrodes are arranged in an M*N matrix, wherein M and N are greater than or equal to 2. The (i, j) electrode and the (i+1, j+1) electrode are connected series to form a branch circuit, wherein i is greater than or equal to 1 and smaller than or equal to M-1, and j is greater than or equal to 1 and smaller than or equal to N-1. The (M, 1) electrode or the (1, N) electrode in the series connection branch circuit is connected to the branch circuit in parallel to serve as an electrode of the circuit if M is an odd, N is an odd and i is an odd. The (M, 1) electrode or the (1, N) electrode in the series connection branch circuit is connected to the branch circuit in parallel to serve as another electrode of the circuit if M is an even, N is an even and i is an even. The radio frequency treatment handle can increase the number of heat energy gathering areas by changing the arrangement of the electrodes or the series connection modes of the electrodes and enables energy to be in uniform distribution so as to improve treatment effects and increase the cure rate. If the electrodes are the radio frequency electrode micro-needles, the number of wound can be reduced timely recovery after treatment is facilitated.
Owner:CHONGQING DEMA PHOTOELECTRIC TECH
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