2071results about How to "Low operating and maintenance costs" patented technology

The invention discloses a network diagnosis method based on a software defined network (SDN). The method includes the steps that a switchboard sets the rule of debug option of a flow table item according to a flow table debug setting command sent by a controller; the switchboard matches the key field of the message heading with the matching field of the flow table item, and judges whether the flow table item matched with the message is set up with a debug option field or not; if yes, the switchboard executes relevant debugging operations according to the content of the debug option field, and the operations include, but not limited to, sending the matching message and the contextual information to the controller; and the controller proceeds network diagnosis according to the message and the contextual information. The invention further discloses a network diagnosis system and equipment based on the SDN. With the technical scheme provided by the invention, the cycle for positioning a network problem is accelerated, the quality of the network is improved, and the operating maintenance cost of the network is reduced.

The invention discloses a traffic-road condition information processing method based on a vehicle wireless sensor network. The method is characterized in that: firstly, a wireless communication network is established and the network includes an information center, a vehicle wireless sensor network sub-system formed by limited vehicle mobile knots and an information publishing sub-system based on a broadcasting network; the information center is fixed in a traffic hub in a city as the center of the wireless communication network; secondly, each vehicle mobile knot collects the timely road condition information and integrates data through the vehicle wireless sensor network sub-system according to the instruction of the information center; then the timely road condition information from the information collection and data integration of each road section is reported to the information center through the vehicle wireless sensor network sub-system; finally, the processed traffic road condition information and network control instructions are published by the information center through the information issuing sub-system to each vehicle mobile knot for the road choosing by drivers.

The present invention relates to a multi-functional integrated circuit chip testing machine which comprises the following components: a casing, an inner testing machine mainboard, an AC signal card group and a DC signal card group. The AC signal card group and the DC signal card group are connected with each other and are respectively installed on the testing machine mainboard. The testing machine mainboard is respectively connected with a PC controlled and a tested chip carrier plate. The multi-functional integrated circuit chip testing machine is technically characterized in that the testing machine mainboard is also installed with a digital/analog chip testing card and an analog/digital chip testing card. The multi-functional integrated circuit chip testing machine of the invention is reasonably designed, realizes the test function to different types of integrated circuit chip, reduced device investment of the integrated circuit manufacturer and saves the operation and maintenance cost of the device. Furthermore the multi-functional integrated circuit chip testing machine of the invention has the characteristics of wide testing range, stable performance, high testing speed, high efficiency, flexible and convenient using, etc.

The invention relates to an electric-automobile-contained micro electric network multi-target optimization scheduling method. The method is characterized by comprising steps that, 1), a mode of access of an electric automobile to a micro electrical network is determined, discharging and charging load distribution characteristic superposition of a single electric automobile under different access modes is carried out to obtain discharging and charging load distribution characteristics of the electric automobile; (2), the electric automobile is taken as a micro electric network scheduling object which is added for electric network optimization scheduling, and an micro electric network scheduling model in consideration of large-scale electric automobile access is established according to the discharging and charging load distribution characteristics of the electric automobile; and 3), a particle swarm optimization algorithm based on the automatic recombination mechanism is employed to solve the micro electric network scheduling model in consideration of large-scale electric automobile access, economical efficiency of micro electric network scheduling under various scheduling strategies is compared and analyzed, and thereby the optimum scheduling strategy is obtained. Compared with the prior art, the method further has advantages of comprehensive consideration and effective and feasible performance.

The invention discloses an LNG (liquefied natural gas) pump-free air-entrapping method with a BOG (boil off gas) recycling function and an LNG pump-free air-entrapping device. The LNG air-entrapping device with the pump-free air-entrapping and BOG recycling functions comprises an LNG air-entrapping machine (6), a tank car (1), an LNG storage tank (2), a pressurizer (3), a liquid nitrogen cold trap (5) and a liquid nitrogen storage tank (4). As the LNG air-entrapping device is a pump-free device, the operating and maintaining costs are low, and the safety is high. The LNG pump-free air-entrapping method is in a pump-free process during the unloading and liquid adding process, so that the power consumption is saved; and meanwhile, BOG is not diffused during unloading by the method, and the BOG in the tank car during unloading and the BOG in a vehicle-mounted steel cylinder in liquid adding process are automatically condensed and recycled, so that the energy loss is reduced.

The monitoring system thereof comprises: a collection module, a statistic server, a statistic result analyzing module and a service monitoring module. The method thereof comprises: selecting the running information and/or service status information of service when internet service runs; according to the predetermined analysis strategy information, making the statistic and analysis for the running information; according to the predetermined monitor strategy information, making the analysis and decision for the statistic analysis information and the service status information in order to decide if the service runs normally; when an abnormal status appears, an abnormal operation is made according to the predetermined monitor strategy.

Meters and meter covers comprising: a removable cover housing configured to accommodate the upper portion of the internal components of an existing meter, the cover housing engageable with the housing base of the existing meter to cover and enclose the internal components of the existing meter; a sensor affixed to the cover housing, the sensor configured to collect environmental information pertaining to the local external environment of the existing meter; a wireless radio affixed to the cover housing, the wireless radio configured to transmit the environmental information to the existing meter or to a remote server in communication with the existing meter; and a power unit affixed to the cover housing, the power unit supplying power to the sensor and the wireless radio.

The invention discloses an efficient wireless meter reading method for an automatic network router. The router comprises a concentrator serving as a primary node and a collector serving as a secondary node. Firstly, one communication network can have only one primary node, and each primary node may have 255 secondary nodes; in the same wireless network, each node has an unique communication address of which value ranges from 0 to 255; the primary node ID is 0, while the secondary node ID ranges from 1 to 255; secondly, wireless data transmission modules arranged on the primary node and the secondary node are provided with a plurality of optional channels, a communication channel is required to be adjusted under both two conditions; and thirdly, the primary node acquires all communicable secondary nodes by an automatic route method, and acquires relay paths to all secondary node so as to realize the wireless meter reading. The invention can improve the application performance of a meter reading system and fulfill the aims of convenient construction, free debugging and less maintenance.

The invention discloses a multi-tenant high-concurrency instant messaging cloud platform. The instant messaging cloud platform comprises a server side and client-side SDKs embedded in APPs of different tenants, data connection is established between mobile terminals carrying the APPs in which the client-side SDKs are embedded and the server side through transmission channels, and the instant messaging cloud platform provides the instant messaging service for the APPs, in which the client-side SDKs are embedded, of multiple tenants at the same time. According to the instant messaging cloud platform, the platform can be conveniently embedded in the user group APPs through the client-side SDKs to form the cloud platform which enables the APPs to achieve instant messaging through the SDKs, the instant messaging function and the service are provided for APP development units and enterprises in a packaged mode, and convenient embedding of the instant messaging function and low-cost usage of the service are ensured; the instant messaging service can be provided for the APPs of multiple tenants, and high-concurrency using requirements can be met; tenant information security is ensured through encrypted information transmission.

The invention provides a photovoltaic power station operation and maintenance system; the system comprises a data collecting module, a communication module, a data storage module, a monitor module, a fault warning module, a video module, a specialist diagnosing module, an asset management module, and an operation and maintenance module; the method of linkage among multiple systems is achieved; the portion of manual interference is reduced; effective measures are provided for increasing the operation efficiency and reliability of photovoltaic equipment, reducing system downtime, increasing operation and maintenance efficiency, as well as reducing the operation and maintenance cost, wherein the asset management of full life cycle provides scientific and credible information for financing, transferring and securitization of the photovoltaic power station.

The invention discloses an on-line intelligent monitoring module for intelligent transformer substation GISs, which comprises an SF6 monitoring function module, a circuit beaker monitoring function module, a capacitive equipment monitoring function modules for mutual inductors and the like, a lightning arrester monitoring function module, a station level communication function module and a human-machine interface function module. By means of the function modules, the on-line intelligent monitoring module for intelligent transformer substation GISs can monitor the gas insulation condition in a gas insulated metal-enclosed switchgear (GIS) and the operating condition of the primary equipment of each power system on line, consequently, power system operation maintainers can fully know the operating state of the GIS in real time and accordingly arrange the operation and maintenance time of the equipment, the safety of the operation of the GIS is enhanced, the safe operation of a power grid is effectively guaranteed, moreover, the maintenance method for the GIS is changed from the conventional scheduled maintenance to state maintenance, the equipment maintenance cost is effectively reduced, and the benefit of a power grid operation maintenance enterprise is increased.

A system according to an embodiment of the invention may include a track and a power supply substantially contained within the track. One or more lamps may be electrically connected to the power supply. The lamp may be an HID lamp, an LED lamp, or a fluorescent lamp. The power supply may be a ballast or a transformer, and may comprise a printed circuit board with electrical power handling components on one side. The system may also include a housing which may surround the power supply.

The invention consists of a water treatment process using selective and regenerable weak base anion exchange resins to remove any number of complex anions, especially oxyanions including perchlorate, nitrate, chlorate, arsenate, selenate, and chromate, from aqueous solutions. The treatment process is comprised of three key processes including 1) pretreatment to lower pH, 2) ion exchange, and 3) post treatment to adjust pH and alkalinity. The invention also includes processes for regenerating weak base anion resins and treatment of the residuals generated. This invention employs pressurized treatment, carbon dioxide management, and reuse of regenerating solution to minimize pumping and treatment costs.

The invention discloses a method for controlling a yaw system of a wind turbine. Starting constraint conditions are established based on a full life cycle cost theory and by comparing yaw comprehensive cost and predicting the unit capacity after yaw to judge yaw maneuver under different working conditions, the contradiction between the wind turbine capacity and the losses of the yaw maneuver is eliminated, the service life of a yaw system is prolonged, and the maximization of the comprehensive benefit of the full life cycle of the wind turbine is achieved. According to the method, the wind speed, the wind direction changing rate, the wind direction changing angles and other factors are taken into consideration comprehensively, and scientific judgment is carried out on whether the yaw maneuver is necessary or not from the point of view of the economic optimality of the full life cycle when threshold value control requirements are met by predicting the increased capacity after yaw and combining cost analysis of the yaw maneuver.

The invention discloses an electronic ground automatic neutral section passing device. The electronic ground automatic neutral section passing device comprises a train direction and position detection unit, an electronic switching valve bank unit and a central controller unit. By detecting the voltage of an alpha phase, a neutral section and a beta phase, the central controller unit determines the optimal switch-on moment according to train running direction and arrival position signals output by a train position signal processing unit so as to achieve the effect of minimum overvoltage impact and minimum overcurrent impact, and the central controller unit sends synchronous triggering switch-on or switch-off signals so as to achieve the ground automatic neutral section passing function of a train. By means of the electronic ground automatic neutral section passing device, train operation time is shortened, line carrying capacity is improved, the service life of high-voltage electrical equipment on the train is prolonged, and operation and maintenance cost is reduced.

The invention discloses a hybrid energy power supply system and a hybrid energy power supply method. The hybrid energy power supply system comprises main energy power supply equipment, auxiliary energy power supply equipment, management equipment, energy storage equipment and load equipment, wherein the main energy power supply equipment is connected with a main communication interface of the management equipment; the auxiliary energy power supply equipment is connected with an auxiliary communication interface of the management equipment; the energy storage equipment is connected with an energy storage equipment communication interface of the management equipment; the management equipment is used for controlling the main energy power supply equipment to provide power for the energy storage equipment and the load equipment and controlling the auxiliary energy power supply equipment to provide power for the energy storage equipment and the load equipment when the main energy power supply equipment is abnormal or the output power is insufficient; and under the condition that electric quantity provided by the main energy power supply equipment and the auxiliary energy power supply equipment cannot meet the load equipment, the management equipment can be used for controlling the energy storage equipment to provide power for the load equipment. According to the hybrid energy power supply system and the hybrid energy power supply method disclosed by the invention, effects of flexibly networking, improving the reliability of a power supply system and reducing the operation and maintenance cost of the system are achieved.

The invention discloses an on-line early warning method of a wind turbine generating unit on a fluctuation working condition, and belongs to the technical field of precognition judgment of early-stage potential hidden danger of safe operation of rotating machinery. The on-line early warning method of the wind turbine generating unit on the fluctuation working condition comprises the steps that (1) a reasonable vibration monitoring scheme is made according to the wind turbine generating unit, and frequency components contained by vibration monitoring points are analyzed; (2) vibration time-domain signals collected at equal intervals are converted into corresponding angular-domain signals collected at equal intervals, and the number of sampling points of equal-angle sampling is determined, namely the vibration data volume, needed to be collected in each circle, of a rotor is determined; (3) a linear interpolation algorithm is used for converting unstable time-domain vibration signals into angular-domain vibration signals with the characteristic of stability, and the complete-period characteristic of the vibration signals is ensured. The on-line early warning method of the wind turbine generating unit on the fluctuation working condition constructs dimensionless amplitude-domain parameters which are sensitive to early faults and can accurately reflect faults of the wind turbine generating unit according to the variable-working-condition characteristic, achieves accurate extraction of early fault characteristics of a transmission chain of the wind turbine generating unit, and achieves graded early warning in the gradual-change fault mode and precognition early warning in the mutability fault mode.

The invention discloses a river channel permeable reaction wall system and the application thereof in water pollution treatment. In the system, one or a plurality of water treatment units are arranged on water banks in a ground mode, a half-buried mode or an all-buried mode; a water distribution system leads the river water to be continually treated by the water treatment units and then be returned to the river channel, or the water distribution system leads the surface-source type polluted water body near the river channel to be treated by the water treatment units and then be returned to the river channel; the water treatment unit comprises an water inlet groove, a permeable reaction wall and a water outlet groove, wherein, the water inlet groove is separated from the permeable reaction wall by a reticular grating. The system properly alters the water banks without occupying other land resources. Based on the original PRB technical principle, the system alters the water banks to cause the water to agree with river channel water quality purification and river-entering pollution control without affecting the function of the river channel. The system has remarkable effect to the water quality treatment of lake-entering rivers and urban pollutant holding rivers and the control of river surface source type pollution.

The invention provides a semi-dry garbage incineration flue gas purifying treatment method and a system device thereof, flue gas enters a spray tower from a waste heat boiler, activated carbon is injected into a horizontal inlet flue to remove dioxin and heavy metals in the flue gas; the flue gas is simultaneously carried out the reaction with a high specific surface area alkaline neutralizer, most of the harmful substances in the flue gas are purified by generating chemical reactions with the alkaline neutralizer; when the flue gas passes through a filter layer which is formed by granule materials in a bag dust collector, gaseous pollutants can still be reacted with non-reacted lime and activated carbon in the filter layer to be further purified. The system device can lead the flue gas and the high specific surface area lime emulsion to achieve the best contact area, thus ensuring the best flue gas retention time, achieving the full heat transfer and the chemical and heat transfer process; furthermore, the spray is even, the anti-blockage and the anti-corrosion performances are better; a lime emulsion preparation device can automatically control and prepare the concentration and the using amount of the emulsion to be participated in the reaction according the content of wastes in the ingredients of the flue gas and the temperature of the flue gas; the usage and the regulation of the neutralizer are flexible. The system device further has the advantages of low investment cost, strong load adaptability and no waste water discharge, etc.

The invention discloses a cloud computation-oriented data center management system comprising a general file system API (Application Program Interface) module, a resource monitoring module, a resource alarm module, a strategy configuration module, a rule engine, a resource scheduling module, an execution module and a resource virtualization API module. The general file system API module is electrically connected with the resource scheduling module, the resource monitoring module is electrically connected with the resource alarm module, the resource scheduling module is respectively and electrically connected with the resource monitoring module, the resource alarm module, the rule engine and the execution module, the strategy configuration module is electrically connected with the rule engine, and the execution module is electrically connected with the resource virtualization API module. The cloud computation-oriented data center management system reasonably schedules calculation and storage tasks of a data center, realizes the intelligent scheduling of the data center, improves the service quality of the data center and the reliability, and decreases the operation and maintenance cost.

The invention relates to a method and system for the automatical antifreezing and thermal insulating of a tunnel lining in high and cold areas. The method comprises the following steps that (1) a tunnel is provided with a surrounding rock, a primary lining, a waterproof plate, a secondary lining and a thermal preservation and thermal insulation layer sequentially from the outside to the inside; (2) a plurality of heating tubes are arranged, and refrigerant is sealed in the heating tubes; (3) the heating tubes are arranged between the secondary lining and the thermal preservation and thermal insulation layer along the length direction of the tunnel, the lower parts of the two ends of the heating tubes are buried in the surrounding rock below a tunnel pavement, so that the refrigerant is uniformly distributed on the lower parts of the two ends of the heating tubes; and the refrigerant continuously transfers heat from the surrounding rock below the pavement to the surface of the secondary lining through the circulation of ascending in a spontaneous vaporized gaseous state and descending in a condensation liquid state, and furthermore, the tunnel lining can be automatically prevented from being frozen and thermally insulated. Compared with the existing antifreezing and thermal insulating technology, the method has the advantages that the operating process does not consume any energy, the spontaneous vaporizing and condensing circulation of the refrigerant is utilized only, so that the tunnel lining can be automatically prevented from being frozen and thermally insulated; and moreover, the method is flexible in design, is convenient to construct and is low in cost.