68results about How to "Guaranteed uninterrupted operation" patented technology

The invention relates to a failure detection and fault tolerance method and a failure detection and fault tolerance system for a real-time cloud platform. The system comprises a client used for sending a command, summiting a task and storing tasks assigned to working nodes in corresponding paths, a global state monitoring module used for monitoring the operation state of the working nodes, carrying out node-level failure detection and fault tolerance according to heartbeat information uploaded by the working nodes and performing migration of a task in a failure node, a global state storage module used for storing the working state and heartbeat information of the global state monitoring module and the working nodes, and working nodes used for performing a task, running a daemon process to guard a work process and performing program-level failure detection and fault tolerance. State information of a whole cluster is all stored in a Zookeeper system, a stateless architecture of the nodes is realized, a node failure does not cause state loss, the system has a perfect failure detection and fault tolerance mechanism, multilevel fault tolerance is realized, and uninterrupted operation of real-time services is guaranteed.

The invention discloses a virtual machine cluster system and an implementation method thereof for overcoming the defect of high cost of the conventional cluster system. The virtual machine cluster system is constructed on a plurality of physical servers, a virtual machine is operated on the physical servers to provide a plurality of virtual computing nodes, and the virtual computing nodes are divided into a management node and a plurality of computing nodes, wherein the management node is used for creating a management library to record the host names and the dynamic internet protocol (IP) addresses of the computing nodes and managing the whole virtual machine cluster system according to the host names and the dynamic IP addresses; and the computing nodes are used for completing the computing tasks of the virtual machine cluster system. According to the technical scheme, the cluster system is constructed by using the virtual machine, so the usage quantity of the physical servers is reduced, and the cost of the cluster system is reduced.

An electromagnetic positioning and navigation device for a transcranial magnetic stimulator is composed of an electromagnetic positioning and navigation module (1), a coil gesture control module (2), a three-dimensional seat (3), an image collection and processing module (4), an electromagnetic calculation module (5), a display module (6) and a transcranial magnetic stimulator coil (7). The electromagnetic positioning and navigation module (1) is connected with the coil gesture control module (2) and the three-dimensional seat (3), and the coil gesture control module (2) is installed on the transcranial magnetic stimulator coil (7). The image collection and processing module (4) can rebuild a three-dimensional head model of a patient in the image space to mark therapeutic targets. The electromagnetic positioning and navigation module (1) records space position and coil gesture of the head (8) of the patient and conducting alignment on head positions in the image space and the sensor space and the position of the transcranial magnetic stimulator coil (7). Induction field distribution of the head of the patient is displayed in the display module (6) by means of calculation of the electromagnetic calculation module (5).

The invention relates to an ultra-small dual-duct unmanned plane combined navigation system and a dual-mode navigation method. Position, speed and posture information with high precision, high continuity and high reliability is provided for an ultra-small dual-duct unmanned plane, so that the ultra-small dual-duct unmanned plane can acquire information for motion; furthermore, a Bluetooth interface is connected with user mobile Bluetooth equipment to acquire a target location of a user; after the user mobile Bluetooth equipment communicates with a system of the unmanned plane, map information of a start point and a final point is transmitted to a control system of the unmanned plane in real time to finish automatic cruising of a robot. According to a navigation method with dual-mode switching, an error-based adaptive kalman filtering algorithm is used for performing data fusion on all terms of data of an inertia navigation subsystem and a GPS navigation subsystem to obtain optimal navigation information. By control on adaptive factors, continuous operation of the system can be also guaranteed during outdoor and indoor switching of the unmanned plane, so that influence on an output of the navigation system due to failure of single GPS equipment is avoided.

The present invention discloses a method and device for electromagnetic localization and navigation for a transcranial magnetic stimulator. The coordinate systems of geometric space position models of a head and a magnetic stimulation coil are registered with the coordinate system of the real position of a patient' head marked by a position sensor and the real position of the magnetic stimulation coil to accurately and rapidly perform localization process from images to concrete positions.

The invention provides an AGV charging management method. The method includes the following steps that a charging threshold value a, a target electric quantity value b and a lowest electric quantity threshold value c are set; a total real-time electric quantity value e of AGVs in a transport system is monitored; an expected number g of to-be-charged AGVs in the transport system is calculated; theg AGVs are selected as the to-be-charged AGVs, whether the AGVs marked with execution of charging tasks exist in the expected number g of the to-be-charged AGVs or not is judged, according to the charging threshold value a and the lowest electric quantity threshold value c, the precedence levels of the to-be-charged AGVs are judged, and the to-be-charged AGVs are sequentially moved to operating charging piles to be charged according to the precedence levels; and an operation in a new round is started after one to-be-charged AGV is charged. The provided transport system applies the above AGV charging management method. By the adoption of the AGV charging management method, the charging precedence levels of the AGVs can be arranged quickly; and the transport system can assess the total electric quantity of the AGVs in the transport system and then execute charging management, so that AGV charging management decision making time is shortened.

The invention discloses a running state control method of a brushless double-fed motor. The running state control method comprises the steps of making a control system powdered on, completing self-detection of the system, and entering a standby state; and judging a target control state of the brushless double-fed motor and controlling the brushless double-fed motor to work in the target control state by the control system according to a starting-up command which is received in real time and running state of a part under the standby state and according to a judgment rule. A special structure and control requirement of the brushless double-fed motor are combined, a corresponding action is executed on each switch according to switching of different states and according to a principle of a state mechanism, so that the original complicated switching logic control process becomes simple and high-efficiency; state and fault classification of the motor is used as a switching condition, the scientific reasonableness of system action is ensured, and the running safety is also effectively guaranteed; and moreover, when a controller fault occurs in the system, the motor is maintained in an asynchronous running state by state switching, so that uninterruptible running of site operation is ensured, and the running state control method has important significance.

The embodiment of the invention discloses a resource warning processing method and routing switching equipment. The resource warning processing method comprises the following steps that: the routing switching equipment receives routing messages; when the protocol module which is in accordance with the type of a protocol of the information in the routing switching equipment is in an overflow status or the resource of the routing switching equipment is insufficient, the routing messages are discarded; and after the routing messages are discarded, and when being not marked to be the overflow status, the protocol module is set to be marked with the overflow status. When the resource of the routing switching equipment is insufficient, the embodiment of the invention ensures that the original transmission service of the routing switching equipment operates continuously, and strengthens the usability and the anti-risk capability of the routing switching equipment and a network.

The invention provides a system and method for assuring servo program continuously operates, for assuring server end key servo program continuously operates, comprising: multiple servo program operating modules to provide service function to each servo program operating module and transmit heartbeat signal or restart signal corresponding to the operating status of each servo program operating module at preset intervals; program information recording module to record information on multiple application programs in need of monitoring; and at least a program monitoring module to read-write the program information recording module, receive the signal from each servo program operating module and execute corresponding operation according to the signal, and transmit a corresponding signal to the operating status of the first program monitoring module at preset intervals. And the invention improves availability and efficiency of servo program and assures operating continuity of servo program as fully as possible.

The invention discloses a method that adopts photo catalytic oxidation of nano materials to restrain membrane fouling, which relates to a membrane fouling. The method that adopts photo catalytic oxidation of nano materials to restrain membrane fouling is provided. A membrane biological reactor and a nano TiO2 photo catalytic oxidation reactor are arranged, wherein, a water inlet end of the nano TiO2 photo catalytic oxidation reactor is communicated with a water outlet end of a biological reactor of the membrane biological reactor; a water outlet end of the nano TiO2 photo catalytic oxidation reactor is communicated with a water inlet end of a membrane separation component of the membrane biological reactor. Waste water is led in the water inlet end of the biological reactor of the membrane biological reactor of a nanao TiO2 photo catalytic oxidation membrane and a water outlet end of the membrane separation component is communicated with a recycling water pipe; a power switch is connected and a water inlet pump at the water inlet end of the biological reactor is started; an ultraviolet radiation quartz light tube in the nano TiO2 photo catalytic oxidation reactor is started; the normal working state of equipment is kept; the power switch is turned off when work is required to be stopped.

The invention relates to the technical field of the network security, and specifically relates to a system capable of quickly discovering and processing network fault, and a processing method thereof.The processing method comprises the following steps: continuously monitoring and analyzing running state and traffic data of target network equipment by using a server, and establishing a traffic database after acquiring the traffic data of the target network equipment, and then performing real-time analysis and judgment on the traffic database; shielding a fault source by adopting a corresponding processing rule once discovering the network abnormality, thereby realizing the quick recovery of the network fault. Through the processing method disclosed by the invention, the network fault caused by network illegal behavior can be quickly processed, and the technical problem of low operation and maintenance efficiency is solved.

The invention relates to a control method for a wind power current converter based on positive-and-negative sequence current inner-loop control. The control method comprises the following steps that firstly, an electric quantity parameter of a power grid is detected, and an asymmetrical fault type which occurs on the power grid is judged; secondly, a malfunctioned unbalanced power grid electric quantity is detected and acquired according to the asymmetrical fault type; the malfunctioned unbalanced power grid electric quantity is decomposed into a positive-sequence component and a negative-sequence component, and the positive-sequence component and the negative-sequence component are converted to a positive-rotation coordinate system and a negative-rotation coordinate system; fourthly, a positive-sequence current control model and a negative-sequence current control model are established, according to the control models, a second harmonic component of an asymmetrical power grid fault is eliminated, and a sinusoidal waveform of the output electric quantity is guaranteed. Compared with the prior art, the control method has the advantages that the control performance is good, and the method is advance.

The invention relates to the technical field of air conditioning systems or equipment, and in particular to a data center energy-saving device with a ground source as a cold source and a running mode of the data center energy-saving device. The device is composed of two circulating systems, and the first circulating system is a ground source circulating system composed of a ground source extracting system (1), a circulating pump (6) and a heat exchanger (2); and the second circulating system is a chilled water circulating system composed of a dry cooler (3), a standby application cold machine (4), a machine room precise air conditioning heat dissipating end (5), the circulating pump (6) and a cold storage unit (7). According to the device, the characteristics of cold storage by the ground source, direct utilization of environment temperature, circulating utilization and the like of the environment of the winter in the northern part are fully utilized, and the ground source and natural resources of low-temperature outdoor environment and the like in winter are utilized as cold sources, so that the cold source need of refrigeration of a data center air conditioner is met. The data center energy-saving device with the ground source as the cold source is provided for people, data center energy consumption is greatly reduced, and the aims of setting up a green data center, saving energy and reducing emission are achieved.

The invention belongs to the semiconductor industry wafer wet processing field and specifically relates to a chemical liquid feeding device and feeding method. First and second liquid feeding barrels are communicated with a gas source which is controlled to be on and off by an electromagnetic valve; a raw material barrel is communicated with the first liquid feeding barrel, and a pipeline is provided with a chemical liquid valve; one path of chemical liquid output from the first liquid feeding barrel is communicated with a soaking unit which is controlled to be on and off by the chemical liquid valve, another path of chemical liquid is communicated to a fan-shaped nozzle for spraying the chemical liquid to a wafer in a technology processing chamber, and a pipeline of the other path is provided with a high-pressure pump, and the pipeline is equipped with a chemical liquid valve; the technology processing chamber is communicated with a recycling bin; the chemical liquid in the technology processing chamber is recycled through the recycling bin, and is pumped into the second liquid feeding barrel through a chemical liquid pump; and the second liquid feeding barrel is communicated with the input end of the high-pressure pump through a pipeline, and the pipeline is equipped with a chemical liquid valve for controlling the pipeline to be on and off. The chemical liquid feeding device and feeding method realize uninterrupted supply of the chemical liquid without manual intervention; and the feeding device is simple and compact in structure and small in occupation area.

The invention provides a method for achieving many-to-one hot standby of Portal gateways. The method is characterized in that a server and at least one group field gateway are arranged, wherein the group field gateway is connected with the upper server and lower intermediary equipment of AC equipment, and comprises a plurality of main gateways and a standby gateway which are all in heartbeat communication with the server; under normal circumstances, the standby gateway disables a corresponding lower connection interface, each master gateway enables a corresponding lower connection interface and sends the interface status to the server through a heartbeat packet, the server updates main gateway status information in a memory, and when the standby gateway sends a heartbeat packet to the server, the server notifies the standby gateway to download a configuration file of the abnormal main gateway and enable the corresponding lower connection interface for provision of network access services; the current main gateway uploads a normal heartbeat packet to the server when resuming the normal status, the server notifies the standby gateway to disable the corresponding lower connection interface, and the current main gateway enables the corresponding lower connection interface to resume the provision of the network access services. The method provided by the invention has the advantages that many-to-one real-time hot standby services can be achieved, so that equipment input costs are reduced.

The invention discloses a high-reliability electric power cable. The high-reliability electric power cable comprises multiple conductors, a wrapping layer which is arranged on the exteriors of the conductors in a wrapping manner, an insulating layer which is arranged on the exterior of the wrapping layer in an extrusion manner, a shielding layer which is arranged on the exterior of the insulating layer in a wrapping manner, a waterproof layer which is arranged on the exterior of the shielding layer in a coating manner, a fireproof layer which is arranged on the exterior of the waterproof layer in a packaging manner, and an outer sheath which is arranged on the exterior of the fireproof layer in an extrusion manner. The high-reliability electric power cable provided by the invention has the characteristics of high temperature resistance, fireproof and flame-retardant property, waterproof and oil-resistant property, aging resistance, and long service life; meanwhile, the high-reliability electric power cable also has high physical and mechanical performance, tearing strength and processing property; the high-reliability electric power cable can be applied to occasions of high-rise buildings, airports, wharfs, underground railroads and the like for ensuring continuous operation of firefighting power utilization equipment and important equipment, such as a fire pump, a fire lift, partial lamination, emergency evacuation indication, security and monitoring, a smoke preventing and exhausting system, a self-contained power supply and the like in a fire situation; and in addition, the high-reliability electric power cable is applicable to water treatment equipment, such as a submerged pump, a coal mine, an underwater operation, a water landscape lamp and the like.

The embodiment of the present invention provides a data cloning method and a data cloning system, wherein the method comprises: determining whether a main controller gets out of order or not, if so, sending a cloning stop instruction to the main controller, receiving feedback information fed back by the main controller after stopping cloning, determining the data that are not cloned in a source volume, sending a cloning instruction to a subordinate controller, and cloning the data that are not cloned in the source volume by virtue of the subordinate controller after receiving the cloning instruction. When the main controller gets out of order, a cloning function is switched to and carried out on the subordinate controller, the waiting for the repair of the main controller is not required, and the data are not required to recover from a target volume to ensure that cloning operation can be performed continuously, so that the waiting time of cloning recovery is extremely short, the uninterrupted operation of upper-layer service is ensured, the real-time consistent data backup of user data is ensured, and the reliability of the data is improved.

The invention relates to the technical field of automatic power supply maintenance of a base station, and particularly relates to a method for analyzing endurance of a storage battery. The method comprises the following steps of: collecting a real-time current value and a voltage value discharged by the storage battery; calculating a duration time and a remained volume of the storage battery according to a preset endurance time formula and a remained volume formula; and giving out related warning information and performance value of the storage battery. According to the method for analyzing endurance of the storage battery provided by the invention, the volume of the storage battery can be known in time, so as to more well ensure that the running of the base station and a machine room communication system is not interrupted under the power-off condition of mains supply.

The invention relates a dedicated measuring instrument for shield grease water-resistant sealing and a test method thereof. The measuring instrument is mainly composed of a high-pressure gas source, aparallel-connected two-path pressurizing control device, a test tube and a pressure release valve; the two-path pressurizing control device is connected with the test tube by means of the high-pressure pipeline; a testing sieve plate is arranged at the bottom of a test tube main body. The test method comprises the following steps: placing the testing sieve plate in the test tube and injecting into shield grease, and injecting water into an upper part of the grease; pressurizing the test tube through the two-path pressurizing control system, and retaining for a certain time under the stipulated pressure; observing whether water seeps from the testing sieve plate at the bottom of the test tube, and recording the grease leakage rate. Through the tester and test method disclosed by the invention, the water-resistant sealing performance of the shield grease can be effectively reflected by stimulating a working condition of the shield grease in the shield construction under the high-pressure water environment.

An electromagnetic positioning and navigation device for a transcranial magnetic stimulator is composed of an electromagnetic positioning and navigation module (1), a coil gesture control module (2), a three-dimensional seat (3), an image collection and processing module (4), an electromagnetic calculation module (5), a display module (6) and a transcranial magnetic stimulator coil (7). The electromagnetic positioning and navigation module (1) is connected with the coil gesture control module (2) and the three-dimensional seat (3), and the coil gesture control module (2) is installed on the transcranial magnetic stimulator coil (7). The image collection and processing module (4) can rebuild a three-dimensional head model of a patient in the image space to mark therapeutic targets. The electromagnetic positioning and navigation module (1) records space position and coil gesture of the head (8) of the patient and conducting alignment on head positions in the image space and the sensor space and the position of the transcranial magnetic stimulator coil (7). Induction field distribution of the head of the patient is displayed in the display module (6) by means of calculation of the electromagnetic calculation module (5).

The invention discloses a sewage treatment device capable of improving performance of a membrane filtration system and an operation method of the sewage treatment device and belongs to the technical field of waste water treatment processes and devices. At least two filtering units (pretreatment microfiltration (MF) or ultrafiltration (UF)+membrane nanofiltration (NF) or reverse osmosis (RO)) are connected in series with the interior of each pressure vessel, and the required pressure vessels are connected in series or in parallel. Through the technology, MF / UF membrane elements can be regenerated, the occupied area of a filtering system is reduced, membrane contamination is relieved, and economic benefits are improved.

The invention discloses a novel water treatment system, which comprises a filter mechanism consisting of a plurality of independent filter units, a water inlet pipe for introducing raw water, a water outlet pipe for leading out filtered water and a drainage pipe for draining back flush sewage, wherein each filter unit comprises a filter and a channel switching valve which is provided with a waterinlet part connected with a water inlet pipe, a water outlet part connected with the filter and a drainage part connected with the drainage pipe, and when the water inlet part and the water outlet part are connected, the filter unit is in a back flush state, and the water inlet part and the water outlet part as well as the drainage part and the water outlet part are connected and disconnected alternately for realizing the switching between the filtering state and back flush state of the filter unit. The system has the advantages that: the pipe arrangement is simple and reasonable; the cost islow; the filtering state and the back flush state can be performed at the same time without influencing each other; and the water treatment efficiency can be improved effectively, and the treatment effect is saved.

The invention discloses a mineral warehouse security and protection system. The system comprises various storage rooms, a radio frequency detection module, a main control module, an alarm module, a first circuit breaker component, a main power source and a second circuit breaker component and a backup power source, wherein the storage rooms are used for storing minerals, the main control module iselectrically connected with the radio frequency detection module and the alarm module, the first circuit breaker component is electrically connected with the main power source and the radio frequencydetection module, and the second circuit breaker component is electrically connected with the backup power source and the radio frequency detection module, the main control module can control the on-off of the first circuit breaker component and the second circuit breaker component to ensure the continuous power supply of the system. The mineral warehouse security and protection system has the advantages of uninterrupted operation and ensured strictness of security and protection.

The invention relates to the technical fields of information and communication and in particular relates to a single point of failure protection method and device of a railway track monitoring and sensing network. In order to prevent single point fault of networking equipment in the railway track monitoring and sensing network from causing network failure, the invention provides the single point of failure protection method and related device of the railway track monitoring and sensing network. Through adopting a main / standby railway track monitoring and sensing network controller and main / standby railway track monitoring and sensing access multiplexing equipment in the railway track monitoring and sensing network, the standby equipment works instead of the main equipment when the main equipment has fault, thus ensuring the ceaseless running of the railway track monitoring and sensing network, and preventing the single point fault of networking equipment in the railway track monitoring and sensing network from causing network failure.

The invention discloses an intelligent control system and particularly relates to a domestic-hot-water intelligent control system of a distributed energy station. The domestic-hot-water intelligent control system is characterized in that one end of an electric hot water boiler is communicated with an electric boiler heat storage water pump through a first valve, and the other end of the electric hot water boiler is communicated with a high water tank; the electric boiler heat storage water pump, a heat storage water tank, a primary heat supply circulation pump, a heat supply plate type heat exchanger and a secondary heat supply circulation pump are sequentially communicated through pipelines, and the heat storage water tank is communicated with the electric hot water boiler through a second valve; the domestic-water heat storage plate type heat exchanger is communicated with the electric boiler heat storage water pump through a domestic-water heat storage circulation pump, a liquid level switch is mounted on the high water tank, and a liquid level measuring sensor is mounted on the heat storage water tank; each equipment above is electrically connected with a control device, and the control device controls the operation of the whole domestic-hot-water intelligent system. The intelligent control system has the advantages that manual operation is not needed, intelligent control of domestic hot water is achieved, and users' living requirements are satisfied while equipment operation energy consumption is lowered greatly.

The invention discloses a stylus assembly production line. The stylus assembly production line comprises a first assembly machine, a first standing curing machine, a first detection machine, a secondassembly machine, a second standing curing machine and a second detection machine, wherein the first assembly machine is used for screwing and assembling a fastener sprayed with a catalyst at a firstassembly position of a refill dispensed with thread glue; the second assembly machine is used for screwing another fastener sprayed with the catalyst at a second assembly position of the refill whichis assembled with the fastener and dispensed with the thread glue; the first standing curing machine and the second standing curing machine are respectively used for the standing storage of a stylus assembled with the two fasteners and the conveying of the stylus after curing; and the first detection machine and the second detection machine are respectively used for detecting the assembly firmness, the assembly precision and the glue amount of the two fasteners. The stylus assembly production line is high in assembly and dispensing precision; and through the cooperation of the catalyst and thethread glue, the curing speed of the thread glue is increased, and the bonding firmness is effectively improved.

Provided are a link switchover method and an apparatus. The method comprises: when a RRU ring network link is normal, the RRU in an RRU ring network receives the time delay compensation values of transmission links in two directions from a BBU; when an RRU ring network link is broken and needs a switchover, the RRU switches the time delay compensation value in one direction used before the switchover to the delay compensation value in the other direction used after the switchover. The present invention solves the problem in the prior art that uninterrupted service operation cannot be ensured when link switchover occurs, thereby ensuring the uninterrupted operation of services.

The invention discloses a running state control method of a brushless double-fed motor. The running state control method comprises the steps of making a control system powdered on, completing self-detection of the system, and entering a standby state; and judging a target control state of the brushless double-fed motor and controlling the brushless double-fed motor to work in the target control state by the control system according to a starting-up command which is received in real time and running state of a part under the standby state and according to a judgment rule. A special structure and control requirement of the brushless double-fed motor are combined, a corresponding action is executed on each switch according to switching of different states and according to a principle of a state mechanism, so that the original complicated switching logic control process becomes simple and high-efficiency; state and fault classification of the motor is used as a switching condition, the scientific reasonableness of system action is ensured, and the running safety is also effectively guaranteed; and moreover, when a controller fault occurs in the system, the motor is maintained in an asynchronous running state by state switching, so that uninterruptible running of site operation is ensured, and the running state control method has important significance.

The invention relates to master control backup equipment and a master control backup method in optical signal aggregation processing equipment. A master main control board card of an embedded ZYNQ control chip realizes service communication with three service board cards through one GE network port, and performs data backup and state monitoring with the embedded ZYNQ control chip of a standby maincontrol board card through the other GE network port. When the main main control board card breaks down, the three service board cards are connected with the standby main control board card, the standby main control board card is switched to the role of the main main control board card to continue supporting service work of the equipment, and after the main main control board card returns to normal again, the three service board cards are connected with the main main main control board card again, and the standby main control board card reversely backs up the data to the main main control board card, and then returns to the role of the standby main control board card. Therefore, the backup function of the main controller in the optical signal aggregation processing equipment is completed,the effect that the equipment service can normally operate after the main controller breaks down is achieved, and the reliability of the equipment is improved.

The invention relates to a failure detection and fault tolerance method and a failure detection and fault tolerance system for a real-time cloud platform. The system comprises a client used for sending a command, summiting a task and storing tasks assigned to working nodes in corresponding paths, a global state monitoring module used for monitoring the operation state of the working nodes, carrying out node-level failure detection and fault tolerance according to heartbeat information uploaded by the working nodes and performing migration of a task in a failure node, a global state storage module used for storing the working state and heartbeat information of the global state monitoring module and the working nodes, and working nodes used for performing a task, running a daemon process to guard a work process and performing program-level failure detection and fault tolerance. State information of a whole cluster is all stored in a Zookeeper system, a stateless architecture of the nodes is realized, a node failure does not cause state loss, the system has a perfect failure detection and fault tolerance mechanism, multilevel fault tolerance is realized, and uninterrupted operation of real-time services is guaranteed.