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1903results about How to "Avoid downtime" patented technology

Electric vehicle-mounted terminal based on cloud computing and using method thereof

The invention discloses an electric vehicle-mounted terminal based on cloud computing and a using method thereof. The electric vehicle-mounted terminal comprises a cloud client, a communication module, a human-machine interaction module, a positioning module, an identity identification module, an electric energy metering module, a charge / discharge control module and a CAN (controller area network) data interface. The cloud client is connected with the identity identification module, the positioning module, the human-machine interaction module, the communication module, the electric energy metering module, the charge / discharge control module and the CAN data interface respectively; a cloud server is connected with the communication module; an identity identification card and a vehicle identification card are both connected with the identity identification module; an electric energy meter is connected with the electric energy metering module; and a vehicle information system and a battery management system are both connected with the CAN data interface. Through the invention, the operation reliability of the vehicle-mounted terminal is improved; more personalized services are expanded; the structure and layout of the vehicle-mounted terminal are simplified, and the expandability of the vehicle-mounted terminal is improved; and the user does not worry about data loss, virus invasion and the like, and convenience is provided to the managers in finding the problems of the vehicle and battery in time.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1

Computer system

A computer system comprises a processor (2), memory (4) and a plurality of devices (6, 8, 10, 12), the processor (2) and the memory (4) being operable to effect the operation of a fault response processor (AFR), and a device driver (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL) for each of the devices. The fault response processor (AFR) is operable to generate a model (81) which represents the processor (2), the memory (4) and the devices (6, 8, 10, 12) of the computer system and the inter-connection of the processor (2), memory (4) and the devices (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL). The device driver (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL) for each of the devices (6, 8, 10, 12) is arranged, consequent upon a change of operational status of the device, to generate fault report data indicating whether the change of status was caused internally within the device or externally by another connected device. The devices of the computer system may be formed as a plurality of Field Replaceable Units (FRU). The fault response processor (AFR) is operable, consequent upon receipt of the fault reports from the device drivers (GRAPHICS, NETWORK, H2IO, IO2L, SERIAL) to estimate the location of a FRU containing a faulty device by applying the fault indication to the model (81). In other embodiments the fault report data includes direction information indicating a connection between the device and the other connected device which caused the external fault. Having identified the faulty device the FRU may be replaced, thereby minimizing down time of the computer system.
Owner:ORACLE INT CORP

Paper money temporary storage module and reel rotating speed control method thereof

The invention relates to a paper money temporary storage module and a reel rotating speed control method thereof. The paper money temporary storage module comprises a large reel driven by a first power motor, a small reel driven by a second power motor, a coiling tape, a first coded disc, a second coded disc, a first sensor, a second sensor and a microcontroller, wherein two ends of the coiling tape are respectively fixed on the large reel and the small reel and the coiling tape is retracted and wound between the large reel and the small reel; the first coded disc is fixed on a rotating shaft of the large reel; the second coded disc is fixed on a rotating shaft of the small reel; the first sensor is arranged corresponding to the first coded disc and is used for monitoring the rotating angle of the large reel; the second sensor is arranged corresponding to the second coded disc and is used for monitoring the rotating angle of the small reel; and the microcontroller is used for calculating the length of the coil tape released by the small reel when the large reel rotates for a circle according to output signals of the first sensor and the second sensor and further calculating the current radius of the large reel, and thus angular velocities of the large reel and the small reel are controlled and the linear velocity of the large reel is enabled to be consistent with that of the small reel.
Owner:GRG BAKING EQUIP CO LTD

Photovoltaic power station fault diagnosis method based on fuzzy production rule knowledge base

The invention relates to a photovoltaic power station fault diagnosis method based on a fuzzy production rule knowledge base, and belongs to the technical field of electric engineering informatization. According to the method, firstly, the field knowledge of photovoltaic power station equipment warning and fault information is stored in a fact and rule form for forming a fault information knowledge base; then, fuzzy logics are adopted for carrying out qualitative analysis on the fault information base of photovoltaic power station equipment, and a judging rule between a fault phenomenon and a reason is determined; detected fault feature vectors are subjected to fuzzy matching with each rule antecedent in a rule base; and according to the matching relationship between the fault phenomenon and the judging rule, the fault diagnosis reason and the result are determined, the fault is positioned, and an overhaul decision scheme is given. The photovoltaic power station fault diagnosis method has the advantages that the final fault or the most possible fault can be fast searched and positioned; meanwhile, the knowledge base is inquired to obtain the overhaul decision; the overhaul decision is provided for overhaul personnel, so that the overhaul personnel can shorten the fault inquiry time; the goal of fast repairing fault equipment is achieved; and the power station machine halt time is reduced, or the power station machine halt is avoided.
Owner:STATE GRID CORP OF CHINA +1

Upgraded server cluster system and load balancing method thereof

The invention discloses an upgraded server cluster system and a load balancing method thereof and relates to the field of server clusters. The upgraded server cluster system comprises a policy server and a plurality of download servers, wherein the policy server is a unified access entrance, a weight number is distributed to each of the download servers by the upgraded server cluster system, the weight number means the maximum access volume of the corresponding download server in unit time, the weight number of each of the download servers minus a real-time linking number of each of the download servers, then a residual weight number of each of the download servers is obtained, an information list , a weight number list and a residual weight number list of each of the download servers are stored in an accessible data base of the policy server or an accessible configuration file of the policy server by the policy server, and the information list of each of the download servers is corresponding to the weight number list and the residual weight number list of each of the download servers in a one-to-one mode. According to the upgraded server cluster system and the load balancing method thereof, through combining the number of communication terminal equipment which accesses to the download servers and the maximum access weight number of each of the download servers, and scientific dynamic scheduling and reasonable allocation of access requirements are achieved.
Owner:FENGHUO COMM SCI & TECH CO LTD

Charging device, charging system of electric automobile and control method of the charging system

The invention relates to a charging device, a charging system of an electric automobile and a control method of the charging system of the electric automobile. The system comprises a mobile terminal, a charging server and the charging device. The mobile terminal is used to send charging service request information and a charging mode to the charging server. The charging server is used to control the charging device to charge the automobile connected with the charging device when user information and information of the charging device are verified to be valid and to send charging completion information to the mobile terminal. The charging server, the mobile terminal and the charging device are connected through wire and wireless networks to form network control and matched with a charger or a vehicle sensor in a charging stall to control and manage charge for the parked electric automobile. The invention supports appointment making function, has the function of self-detection and automatic error report, and is easy to use and control. Hardware is easy to expand, different charging plugs can be replaced, and use of an electronic card is obviated. Charging can be performed only by login authentication and the invention can indicate various work states in the charging process.
Owner:HONG KONG POWER

Shared storage message queue-based implementation method for high availability of virtual machines

ActiveCN104253860AMonitor current statusAvoid downtimeData switching networksMessage queueTimestamp
The invention discloses a shared storage message queue-based implementation method for high availability of virtual machines and relates to the field of cloud computing. The shared storage message queue-based implementation method for the high availability of the virtual machines comprises the following steps: initializing a piece of contiguous space on shared storage by a server program to serve as a logical volume; distributing a plurality of contiguous sectors from the logical volume to serve as a sector pool of a client program; acquiring the configuration information of the sector pool and the number of a virtual machine, of which the high availability is enabled, by the client program; sending a heartbeat message by the client program, and updating the timestamp of a virtual machine control block maintained by the client program; receiving the heartbeat message by the server program, and updating the timestamp of the virtual machine control block maintained by the server program by utilizing the timestamp carried in the heartbeat message. According to the shared storage message queue-based implementation method disclosed by the invention, the unnecessary stop time of the virtual machines is avoided; system resource consumption is low by adopting a heartbeat detection mechanism; the performance is high; the service life of the disk of the shared storage is prolonged.
Owner:WUHAN OPENKER COMPUTING

Method for protecting direct current line transient short-circuit fault of modular multiple-level converter

The invention relates to a method for protecting a direct current line transient short-circuit fault of a modular multiple-level converter, belonging to the technical field of direct current transmission. A group of two-way thyristor switch is connected on alternating current ports of each power unit of the modular multiple-level converter in parallel, when a direct current line has a transient short-circuit fault, control pulses of all of the power units are closed, and all of the two-way thyristor switches are triggered to be switched on at the same time, so that the short-circuit point of the direct current line is in natural arc extinction and disappears. When short-circuit current of the direct current line is detected to be zero, all of the two-way thyristor switches are controlled to be switched off, and the control pulses of all of the power units are opened, so that the converter runs again. With the adoption of the method, a switch device of the converter can be quickly protected from damage during a failure, and the direct current short-circuit point is in the natural arc extinction after failure, therefore, the device can automatically run again, thereby avoiding the complete off-stream of the device and greatly improving the reliability and the availability factor of the device.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Wind speed and wind direction sharing system of wind electric field set

InactiveCN102434392AAutomatically achieve automatic switchingAvoid downtimeWind motor controlMachines/enginesWind drivenData acquisition
The invention relates to a wind speed and wind direction sharing system of a wind electric field set, which belongs to the technical field of wind driven generation. The technical scheme includes relating meteorological information of each wind generating set to wind speed and wind direction meteorological information of a plurality of sets and/or wind electric field booster stations on the periphery with similar positions and topography according to relevant positions and topography of each wind driven generating set in the wind electric field; sharing the meteorological information of the relevant wind generating set under special conditions by means of a wind electric field supervisory control and data acquisition (SCADA) system; automatically achieving automatic switch of local meteorological information and remote shared meteorological information by a fault set local control system; simultaneously performing backup protection on safety operation of the set under strong wind operation mode based on an pitch angle and generated output, and finally ensuring continuous and safe operation of the set. The wind speed and wind direction sharing system of the wind electric field set can well solve the problem that a machine is halted while the wind generating set continues generating power due to faults of a wind speed and/or a wind direction sensor and is simple in structure, high in safety, strong in practicality and good in economy.
Owner:BAODING TIANWEI WIND POWER TECH

Automatic level-controlling draining dehumidifier and draining method thereof

An automatic level-controlling draining dehumidifier mainly comprises a water pump suction pipe, a water pump drainage pipe, an electromagnetic water pump, a water pump fixing cover, an inductive switch fixing part, a water fullness alarming switch, a pumping alarming switch, a drainage quick adapter assembly, a level measuring floater, a water-collecting tray, an osculum, an osculum plug, a compressor and a heat exchanger; the connection is as follows: one end of the water pump suction pipe is connected with the water-collecting tray and the other end is connected with the electromagnetic water pump; one end of the electromagnetic water pump is connected with the water pump suction pipe; the other end of the water pump drainage pipe is connected with the quick adapter assembly; the level measuring floater is arranged below the water pump fixing cover; and the water fullness alarming switch and the pumping alarming switch are fixed by the inductive switch fixing part. The draining method of the dehumidifier comprises the following steps: one electromagnetic water pump is arranged on the side surface of the water-collecting tray; when the dehumidifier is working, the condensed water is generated by the heat exchanger and falls into the water-collecting tray; the level measuring floater rises slowly under the effect of buoyancy with the increase of water quantity so as to measure the height of the water collected in the water-collecting tray; the floater firstly touches the pumping alarming switch with the rising of level and then the electromagnetic water pump starts to work; the quick adapter at the bottom of a chassis can be connected with a rubber drainage tube with length of about 5M; then the electromagnetic water pump drains the water inside the water-collecting tray out of the room through the water pump suction pipe and the water pump drainage pipe; if the floater touches the pumping alarming switch firstly but the electromagnetic water pump does not work.
Owner:NINGBO ERYE & ELECTRONICS

Live broadcast assistant audio/video processing method and device for

The invention relates to the technical field of the Internet and discloses a live broadcast assistant audio/video processing method and device. The method comprises the steps of collecting anchor audios, background music and special effect audios through a live broadcast assistant audio/video application, carrying out audio processing and integrating the anchor audios, the background music and the special effect audios into an audio stream; collecting live broadcast images through the live broadcast assistant audio/video application, carrying out image processing to generate a video stream; aligning time stamps of the audio stream and the video stream to generate an audio/video stream data packet; and transmitting the audio/video stream data packet to a live broadcast application through a cross-process communication channel. The audios in the live broadcast process are effectively integrated into the audio stream, the time stamps of the audio stream and the video stream are aligned, the audio stream and the video stream are transmitted to the live broadcast application, various audios in the live broadcast process are prevented from mutual interference, and the fusion effect of the live broadcast application for the audios in the live broadcast process is relatively good.
Owner:广州方硅信息技术有限公司

Cooling by-pass structure of electric appliance control box of frequency conversion type air conditioner outdoor unit

The invention relates to a cooling bypass structure of an electric control box for the outdoor unit of an inverter air conditioner. The structure includes a thickened control box faceplate and capillaries communicating the faceplate interior with a low temperature refrigerant pipe. A hollow cavity is formed between the front side and the back side of the thickened control box faceplate; skirt plates in up/down parallel arrangement are positioned in the hollow cavity of the faceplate, thereby forming rotary type up/down circulating passages. The upper part and the lower part of the control box faceplate are respectively connected with the capillaries, two capillaries are connected with the low temperature refrigerant pipe leading to an evaporator, and the hollow cavity of the control box faceplate communicates with the low temperature refrigerant pipe via the capillaries. When the air conditioner is in operation, the temperature of the control box is lowered by the low temperature refrigerant passing through the control box faceplate, so as to avoid fuse burnout and stoppage phenomena caused by over-high temperature of the electric control box. At the same time, the capillaries of the bypass structure can play the role of throttling decompression to the refrigerant system, thereby facilitating heat conversion of the refrigerant to the evaporator and optimizing the operation performance of the system.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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