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343results about How to "Reduce operating and maintenance costs" patented technology

Method for treating iron-containing acidic wastewater

The invention discloses a method for treating iron-containing acidic wastewater. The method comprises the following steps of: performing neutralization reaction on the iron-containing acidic wastewater and carbide slag slurry or lime milk in a neutralization tank by mechanical mixing; delivering neutralized slag-containing wastewater into a sedimentation tank; delivering wastewater supernatant in the sedimentation tank into a wastewater oxidation tank, adjusting a pH value in a pH value adjustment zone of the wastewater oxidation tank by using a small amount of the iron-containing acidic wastewater, and delivering the wastewater supernatant into an aeration zone for oxidization; delivering wastewater containing a small amount of ferric suspended substances into a clarification tank, and discharging clarified clean wastewater directly; and delivering sediment settled in the sedimentation tank in the step two and sediment settled in the clarification tank in the step four into a sediment oxidation tank by pumping, performing aeration oxidation treatment, delivering the sediment into a filter press for filtration, returning filtered water to the wastewater oxidation tank for treatment together with the wastewater supernatant from the sedimentation tank, and treating filtered residue by the conventional method. The clarified clean wastewater treated by the method has the pH value of 6 to 9 and the iron concentration of 2 mg/L, and meets the national discharge standard.
Owner:XIANGTAN UNIV

WLAN (wireless local area network) positioning method and positioning server for positioning third part

The invention provides a WLAN (wireless local area network) positioning method and a positioning server for positioning a third part. The positioning server receives a positioning request launched by the third part, searching an MAC (media access control) address corresponding to a WLAN networking account of a terminal to be positioned, inquiring an IP (internet protocol) address corresponding to the WLAN networking account; inquiring the corresponding relation between the IP address and the MAC address of an AP (access point), acquiring an MAC address list of the AP; acquiring a list of WLAN terminals related to the AP currently in the MAC address list of the AP; searching the list of the WLAN terminals according the MAC address of the terminal to be positioned, and finding out the MAC address of the AP related to the terminal to be positioned, searching longitude and latitude of the MAC address of the AP according to the corresponding relation between the longitude and the latitude and the MAC address of the AP, and acquiring the position of the terminal to be positioned, wherein the MAC address list of the AP includes the MAC address of an AP into which the terminal to be positioned accesses. Positioning time length is reduced and operation complexity of positioning of the third part is reduced.
Owner:CHINA TELECOM CORP LTD

Intelligent operation and maintenance method based on ensemble learning photovoltaic forecasting

The invention discloses an intelligent operation and maintenance method based on integrated learning photovoltaic prediction, comprising the following steps: S1, preprocessing the historical photovoltaic data of a power station collected by a photovoltaic monitoring cloud platform; S2, pre-processing the historical photovoltaic data of the photovoltaic monitoring cloud platform; S2, analyzing thecharacteristic correlation of the pre-processed data to determine the strong correlation factors affecting the output power of the power generation quantity; 3, establishing a photovoltaic predictionmodel and fitting data; S4, training the photovoltaic prediction model and optimizing the model; 5, embedding a photovoltaic prediction model into a photovoltaic monitoring platform, inputting data inreal time to obtain a prediction value, comparing the prediction value with the actual value, and setting a deviation interval; S6: guiding the operation and maintenance of the power station according to the interval where the deviation value in step S5 is located. The intelligent operation and maintenance method based on the integrated learning photovoltaic prediction provided by the invention predicts the photovoltaic power through the integrated learning algorithm and embeds the photovoltaic prediction model into the photovoltaic monitoring cloud platform, thereby improving the construction quality of the power station, reducing the later operation and maintenance cost of the power station and reducing the artificial input.
Owner:SHANGHAI ANYO ENERGY SAVING TECH

Wireless router with built-in user management function, system and networking method thereof

The invention relates to a wireless router with a built-in user management function, a system and a networking method thereof. The functions of user authentication and access authority control are provided and the access control can be performed in time and flow manners. The wireless router comprises a local area network Ethernet interface, a wide area network Ethernet interface, a wireless network module, an account data storage and an account authentication managing module, wherein the account data storage is used for storing information of an access user of a wireless network; the account authentication managing module is used for propelling a log-in page to the user after the user is connected to the wireless network and calling the information of the access user of the wireless network to authenticate the user identity; the account authentication managing module is respectively connected to the wireless network module, the account data storage and the wide area network Ethernet interface; the local area network Ethernet interface is connected to the wide area network Ethernet interface; the information of the access user of the wireless network comprises user name, account level, access authority expiry date and residual flow; and the account authentication managing module works in a mainly used mode or a subordinate mode.
Owner:陈佳阳

Off-course driving device of non-off course gear used for aerogenerator

The invention relates to a deviation driving device without a deviation gear for a wind driven generator. The invention relates to a deviation driving device. The invention solves the problems that the prior deviation driving device on the wind driven generator has more executive elements, poor reliability and low deviation accuracy, thereby bringing about the low power generation efficiency. A frequency conversion motor (21) is connected with a two-way constant delivery pump (23) through a coupling (22); a closed loop circuit (30) is formed between the two-way constant delivery pump (23) and a low speed great torque hydraulic motor (26); an oil replenishing valve assembly (24) is connected in parallel on the closed loop circuit (30) and is communicated with a closed oil can (20); a two-way hydraulic lock (25) is connected in series on the closed loop circuit (30); a manual stop valve (27) is communicated with high and low pressure cavities of the low speed great torque hydraulic motor (26) and the closed oil can (20); and motor rotor (26-1) on the low speed great torque hydraulic motor (26) is fixedly arranged on a deviation main shaft (40). The deviation driving device has the advantages of good reliability, simple structure, low cost, stepless deviation velocity regulation, and the like.
Owner:HARBIN INST OF TECH +1

LED intelligent illuminating system enabling wind energy, light energy and mains supply to be complemented

The invention discloses an LED intelligent illuminating system enabling wind energy, light energy and mains supply to be complemented. The system comprises a solar energy panel or a wind energy generator set, an energy controller, an accumulator battery, a microcontroller and an LED illuminating lamp. The solar energy panel converts the radiating capacity of the sun to electric energy and transports the electric energy to accumulators to be stored. The wind energy generator set transports the electricity generated by wind energy to the accumulators to be stored. The energy controller limits the charge-discharge conditions to prevent overcharge and deep charge of the accumulators. The accumulators store the electric energy satisfying the requirement of illuminating. The microcontroller is used for realizing automatic control of an illuminating lamp system and automatic adjustment of illuminating lamp brightness. The LED illuminating lamp serves as the source of light for illuminating. The system has the following advantages: (1) the system fully utilizes the wind energy, solar energy and other new green energy, thus relieving energy shortage; (2) the system is simple and convenientin installation; (3) the system features low operation and maintenance cost; and (4) the operation of the whole system is automatically controlled. The system is suitable for the regions abundant in wind energy and light energy sources.
Owner:GUIZHOU ANHUI SOLAR TECH

Integrated intelligent control method and system suitable for campus type microgrid

The invention relates to an integrated intelligent control method and system suitable for a campus type microgrid. The integrated intelligent control method is characterized in that (1) the integrated intelligent control system for the campus type microgrid is constructed according to an SOA framework system, and the integrated intelligent control system for the campus type microgrid comprises a supporting platform module, a service application module and a comprehensive application module; (2) the supporting platform module is utilized, and model maintenance management, graph maintenance management, formula computing and statistics, database maintenance management, reporting services, system clock synchronization and the man-machine interface basis function are completed; (3) the service application module is utilized, and the functions of microgrid monitoring, microgrid energy management, protection information monitoring, power distribution automation, computing automation and video and environment monitoring are completed; (4) the comprehensive application module is utilized, and the functions of comprehensive energy efficiency analysis, comprehensive load prediction, intelligent coordination control, intelligent data analysis and intelligent diagnosis early warnings are completed. The integrated intelligent control method and system have the advantages of being low in construction investment, low in operating and maintenance cost and the like, and are beneficial to application and popularization of the microgrid in our country.
Owner:CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD

Fusion of communication business network platform, IAS and enterprise network platform, and communication method

The invention discloses a converged communication service network platform, an IMS proxy server, an enterprise network platform, and a converged communication service request implementation method based thereon. The IMS proxy server comprises an enterprise service network interface, an IMS network interface, and a dispatcher which is connected with the IMS proxy server and the enterprise service network interface. After the address of a service server in the enterprise service network related and corresponding to a service request acquired from the IMS network interface is turned to be a forwarding address, the dispatcher sends the service request to the enterprise service network interface, so that the service request can be accurately transferred to a corresponding service application server in the enterprise service network. Through the design of the IMS proxy server, the invention extends the IMS open service capability into the enterprise, and the enterprise can deploy the customized services thereof on the IAS, thereby enhancing converged communication service customization capability of the enterprise, and at the same time making full use of the IMS network resource, and reducing cost on service customization of the enterprise.
Owner:深圳市嘉讯软件有限公司

Air cathode microbial fuel cell constructed wetland device of biological carbon matrix anode

The invention discloses an air cathode microbial fuel cell constructed wetland device of a biological carbon matrix anode. The upper layer of the constructed wetland is an aerobic zone, the lower layer of the constructed wetland is an anoxic zone; the aerobic zone and the anoxic zone are respectively provided with a cathode electrode and a biological carbon matrix anode electrode; waste water enters the anoxic zone through a water supply system and an inflowing water distribution pipe; electrons and protons are generated by oxidizing organic matters by microorganisms; the electrons are transmitted to the cathode electrode of the upper aerobic zone by the biological carbon matrix anode electrode of the lower anoxic zone through an external circuit; the protons are transmitted to the aerobic zone through a packing medium; the protons are diffused to the aerobic zone through a solution to combine with the electrons and oxygen gas so as to generate water; finally, after being cleaned by the microorganisms in the upper aerobic zone, the waste water flows to a water drainage system through an outflow water collecting pipe. The constructed wetland device disclosed by the invention can efficiently remove organic matters, increase the generated power, and effectively improve water quality and pH value. The constructed wetland is various in organisms, good in processing effect, low in running and maintaining costs, energy saving and environment friendly.
Owner:DONGHUA UNIV

Hinged mounting base on 100% modern city tramcar

The invention discloses a hinged mounting base on a 100% modern city tramcar. The hinged mounting base comprises an upper panel, a lower panel, a connecting rib plate, a rear block plate and a base, wherein the connecting rib plate is respectively connected to the upper panel, the lower panel and the rear block plate in a welding manner; the upper panel and the lower panel are welded on the rear block plate; the rear block plate is welded on the base; a hole for riveting is formed in the base. The hinged mounting base can be applied to installation of an upper hinge device of a 100% low-floor tramcar. The connection mode of the hinged mounting base and a car body is a riveting manner, so that not only is the hinged mounting base not limited by a roof end part material, but also the hinged mounting base can be conveniently repaired and replaced after being damaged. The hinged mounting base is welded by a high-strength carbon steel material, so that the hinged mounting base has enough strength and rigidity, and is especially applicable to local reinforcement on the hinged part on an aluminum alloy car body, the strength index of the overall car body is met, the weight of the car body is reduced, and the hinged mounting base has significant advantages of simple structure, reliable performance, good repairability and the like, and is convenient to assemble.
Owner:CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD

Convolutional neural network generation method and vehicle series identification method

The invention discloses a convolutional neural network generation method used for vehicle series identification of a vehicle in an image, a vehicle series identification method, a computing device anda mobile terminal. The convolutional neural network generation method comprises the steps that a first processing block is constructed, wherein the first processing block comprises a first convolution layer; a second processing block is constructed, wherein the second processing block comprises a second convolution layer and a third convolution layer and the second convolution layer and the thirdconvolution layer are sequentially connected; according to a number of first processing blocks, second processing block and pooling layers, a full connection layer and a classifier are combined to construct a convolutional neural network; the convolutional neural network uses the first processing block as input and the classifier as output; the convolutional neural network is trained according toa pre-acquired vehicle image data set, so that the output of the classifier indicates a vehicle series corresponding to the vehicle; the vehicle image data set comprises a lot of vehicle image information; and each piece of vehicle image information comprises the vehicle image and the vehicle series information of the vehicle in the corresponding image.
Owner:CHEZHI HULIAN BEIJING SCI & TECH CO LTD

Hydraulically-driven self-cleaning laminated filtering device of micro-irrigation system

The invention discloses a hydraulically-driven self-cleaning laminated filtering device of a micro-irrigation system. The filtering device comprises a filtering cavity consisting of an upper shell and a lower shell, wherein a filtering lamination set is arranged in the filtering cavity; the lower part of the filtering lamination set is provided with a lamination connecting gland; a back wash ejector is sleeved in the filtering lamination set; the upper part of the filtering lamination set is provided with a connecting seat; the upper part of the connecting seat is hermetically connected with a water outlet; the connecting seat is connected with a spiral disk; a back wash piston lever is axially arranged on an axial line of a filter core chamber; the top end of the back wash piston lever is provided with a back wash gasket, while the bottom end is connected with a back wash drainer after passing through the lamination connecting gland; and the back wash drainer is extended out of the bottom of the lower shell and communicated with a back wash drainage connecting pipe. According to the requirement of micro-irrigation on water treatment, a two-stage three-dimensional filtering mode formed by the lamination set and the spiral disk is innovatively designed and invented by researching theoretical basis of design of micro-irrigation filtering equipment; and automatic cleaning and automatic drainage are realized by using centrifugal sedimentation self-cleaning of the spiral disk and energy of water fluid in a filter consisting of a hydraulically-driven piston, a back wash filter core bracket and a drainage device.
Owner:王栋
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