99results about How to "Reduce maintenance complexity" patented technology

The invention discloses a data processing method for a memory database. The method comprises the following steps of: separating a memory database process from memory data; establishing a shared memory segment, storing the memory data into the shared memory segment and pointing an address of a memory database data region to the address of the shared memory segment; and connecting the shared memory segment when the memory database process is started. The invention also discloses the memory database. In the method, by separating the memory database process from the memory data and applying data memory space of the memory database in the way of the shared memory segment, the data in the memory database is not affected because the data is stored in the shared memory segment under the condition that the memory database process is abnormal; and thus the database and the method have the advantages of improving the data safety of the memory database without data synchronization of a main memory database and a standby memory database and reducing the equipment cost and the equipment maintenance complexity.

The invention relates to a method for keeping high availability of an Oracle database service, and discloses an implementation method for keeping the high availability of the Oracle database service. The method comprises the following steps of: distributing virtual Internet protocols (IP) for database nodes; and performing heartbeat detection on the database nodes, judging whether a master database node and a slave database node are alive, when the master database node cannot be accessed, automatically drifting the virtual IP to the slave database node, and switching the identity of the slave database node to be the identity of master database nodes. The invention also discloses a system for keeping the high availability of the Oracle database service. The method and the system are specifically suitable for the DATAGUARD characteristic of the Oracle database; due to combined matching with open source software DRBD and Keepalived, in switchover (planned switchover and lossless switchover) or failover (non-planned switchover and lossy switchover), on the premise that data are not lost, master to slave switching of the database can be realized; and the high availability of the database service can be kept.

The invention discloses an LED lamp control method, an LED lamp and a control system. The control system comprises a cloud platform, at least one LED lamp group and control equipment; the cloud platform preassigns a unique identifier for the at least one LED lamp group, and the control equipment generates control information corresponding to a control operation and transmits the control information to the cloud platform after receiving the control operation; the cloud platform identifies a target LED lamp group identifier and the control type included in the control information, generates a control instruction corresponding to the control information, and transmits the control instruction to the LED lamp groups corresponding to the target LED lamp group identifier through a gateway; and the LED lamp group executes an operation corresponding to the control type according to the control instruction. The processing and analysis of the control information of the invention are all implemented by the cloud platform uniformly, thus a plurality of LED lamp groups can be quickly controlled, and control modules in the LED lamp groups only need to simply convert the control instruction, thereby reducing the work complexity and maintenance complexity, and enhancing the stability of the system.

The invention discloses a method for managing label switching path (LSP) tunnel information, including: respectively binding an LSP tunnel identification for every LSP tunnel destination, wherein, the LSP tunnel destination is in one-to-one correspondence with the LSP tunnel identification; acquiring the LSP tunnel identification bond to the LSP tunnel destination and recording into the VPN forwarding table, during establishing an VPN forwarding table arriving the LSP tunnel identification; during establishing the LSP tunnel, using the LSP tunnel identification bond to the LSP tunnel destination to identify the LSP tunnel, and establishing corresponding NHLFE table for the LSP tunnel; and refreshing the NHLFE table corresponding to the variation of the LSP tunnel, when the LSP tunnel changes. The invention also discloses an apparatus for managing LSP tunnel information. The invention can reduce information maintenance complexity and reduce VPN service recovery time, when the LSP tunnel changes.

The invention discloses a Bootstrap-based custom form system and belongs to the technical field of form data management. The system comprises a form element control provided by a definition system, a form basic information and layout configuration unit, a form presentation unit, a form query result list configuration unit and a form entity data model dynamic creation unit, wherein the form element control comprises a form visual editor, and configuration information of the form element control supports flexible extendable attributes; the form basic information and layout configuration unit finishes selection and dragging-dropping of the form element control by a graphic interface and a draggable component, provides a real-time preview function and displays a form thumbnail; the form presentation unit correctly displays form information according to configured form elements and layout; the form query result list configuration unit provides a to-be-displayed column in a form query result list and related configuration of the to-be-displayed column according to form configuration information; and the form entity data model dynamic creation unit dynamically generates a data model according to the form configuration information. According to the system, forms needed by users are flexibly and conveniently configured and a form presentation function capable of being compatible with both a PC and a mobile terminal is supported.

The invention discloses a dynamic rule maintenance and generation method based on Drools. The dynamic rule maintenance and generation method comprises the steps: carrying out the management of business rules through employing a two-dimensional form of a relational database, and converting each type of Drools rule files into a two-dimensional form; calling a unified rule generation engine, translating the two-dimensional table into a Drools rule file, and storing the Drools rule file in a Redis cache; informing a rule consumer in real time through the MQ asynchronous message and sending a rulechange message; and after the rule consumer monitors the rule change message, obtaining the latest rule file from the Redis cache, analyzing the rule file, compiling the rule file into a correspondingJAVA CLASS file, and enabling the latest rule to take effect by loading. According to the invention, the problems of inconvenient maintenance and low generation efficiency of the processing rule of the existing web engine are solved.

The invention discloses an air-conditioning system. The reliability of the system is improved. The air-conditioning system comprises M outdoor units, N indoor units and a control system; the M outdoor units are used for supplying heat sources or cold sources, and the M is a positive integer; the N indoor units are used for receiving at least one heat source or cold source which is provided by one or more outdoor units, and the N is a positive integer; and the control system comprises a lubricating oil distribution subsystem, a refrigerant distribution subsystem and a control subsystem, the lubricating oil distribution subsystem is connected with the M outdoor units and comprises a gas-liquid separator and an oil separator which are connected with each other by a first connecting pipeline, the refrigerant distribution subsystem is connected with the M outdoor units, and the control subsystem is connected with the N indoor units, the M outdoor units, the lubricating oil distribution subsystem and the refrigerant distribution subsystem. The invention further discloses the control system and an air-conditioning control method.

The invention discloses a method, device and system for equipment management and relates to the field of communication, wherein the method, device and system provided by the invention can be used for improving the communication efficiency among equipment in the system and reducing the maintenance complexity of the equipment. The method disclosed by the invention comprises the following steps: under the condition of meeting the equipment information transmission conditions, sending the equipment information of a client to a server, thereby enabling the server to send a management command to the client according to the received equipment information; receiving the management command sent by the server; obtaining a command or a parameter update command according to the parameters in the management command and executing the parameter operation; generating management command response information, wherein the management command response information carries the execution result obtained by executing the parameter operation; and sending the management command response information to the server. The embodiment of the invention is mainly used for the network architecture which comprises the server and the client.

An eccentric-screw pump has an axially split stator having axially opposite intake and output ends and an elastomeric liner defining an axially throughgoing passage. Respective intake and output housings are releasably secured to the intake and output ends of the stator. An axially extending screw rotor in the passage has an end in the intake housing. A drive includes a rotatable universal joint having a pair of relatively swivelable parts in the intake housing. Respective generally complementary formations on the end of the rotor and on one of the universal-joint parts can fit axially together to rotationally couple the one universal-joint part with the rotor. A latch secures the formations axially together for angular force transmission between the one universal-joint part and the rotor.

The invention discloses a network clock monitoring method and a network clock monitoring device used for monitoring the state of a network clock. The clock network monitoring method comprises the following steps: acquiring clock data of all equipment accessing a network; visualizing the clock data to obtain a topological network diagram of the clock data; setting a clock source for any equipment in the topological network diagram, and monitoring the flow directions of the clock sources according to the topological network diagram to obtain a monitoring result; and triggering alarm information when the monitoring result shows that the clock sources of the equipment form a ring or are in an interlocking state in the topological network diagram. By adopting the technical scheme of the invention, PTN network clock self-monitoring is realized, the equipment of which the clocks form a ring or have reduced quality can be found actively, and the workload of network maintenance is reduced.

The invention relates to an all-servo mold table device of an uncoiling die cutting machine. The device comprises a mold table main body frame, an upper die cutting platform, a lower die cutting platform, a feed driving mechanism for guiding products to enter a die cutting station, and a discharge driving unit for guiding the products to shift out of the die cutting station; the feed driving mechanism and the discharge driving mechanism are both fixedly mounted on the lower die cutting platform; the lower die cutting platform is connected with a mold table driving unit; the die table driving unit controls the lower die cutting platform to move up and down; and the lower die cutting platform and the upper die cutting platform are pressed for die cutting of the products. Compared with the prior art, the device adopts an all-servo control and stick clamping mode to simplify mechanical structure and to improve the die cutting speed and the production efficiency; and through arrangement ofthe lower die cutting platform capable of moving, a lower mold is always bonded with the products during die cutting, and conveyed papers and the mold table are always maintained on the same plane, sothat the floating in the mold table is reduced, the up-down travel of the mold table is reduced, and the die cutting frequency can be greatly improved.

The invention provides a position fingerprint updating method and device for wireless positioning. Self-adaptive position fingerprint adjusting is realized to ensure the accuracy of positioning. The method comprises the steps that rounds of voting is carried out based on the signal receiving strength indication, which is detected by a user terminal, of a number of access points; in each round of voting, based on the signal receiving strength indication of a part of access points in a number of access points and the signal receiving strength indication, which is detected at a number of reference positions in advance, of a part of access points, the similarity degree of the position of the user terminal and each reference position is calculated; and if the similarity degree of the position of the user terminal and a reference position is greater than a set threshold value, the position fingerprint at the reference position is updated by using the signal receiving strength indication, which is detected by the user terminal, of the access points other than a part of access points in a number of access points.

A propeller blade mounted with a preload adjacent a propeller blade root retention which increases the moment capacity of the retention for a given pitch diameter, yet permits pitching of the propeller blade about a blade axis in response to a propeller pitch change actuation system. The propeller blade retention assembly includes a tapered roller bearing set having a multiple of tapered roller bearing cartridge assemblies. Each tapered roller bearing cartridge assembly includes a retention cartridge and at least one tapered roller bearing element to facilitate installation and retention during assembly.