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115results about How to "Reduce management and maintenance costs" patented technology

Substation equipment monitoring and early warning terminal

InactiveCN103108034AAddress Security ManagementSolve remote monitoring problemsTransmission systemsCircuit arrangementsTransformerIntelligent equipment
The invention discloses a substation equipment monitoring and early warning terminal which comprises a circuit board, a processor, a communication module, an alarm module, a display module, an intelligent equipment data collecting circuit, a telemetering signal collecting circuit, a remote communication signal collecting circuit, a remote control circuit and a power module, wherein the processor, the communication module, the alarm module, the display module, the intelligent equipment data collecting circuit, the telemetering signal collecting circuit, the remote communication signal collecting circuit, the remote control circuit and the power module are arranged on the circuit board. The processor is connected with a substation equipment operating status monitoring device or an equipment operating environment monitoring device through the intelligent equipment data collecting circuit, the telemetering signal collecting circuit, the remote communication signal collecting circuit and the remote circuit, and carries out data interaction with an upper computer with the communication module accessing to a communication network. The substation equipment monitoring and early warning terminal can carry out on-line monitoring to the operating statuses of various equipment of a transformer substation and factors affecting the safe operating of the transformer substation, enables fault information to be detected in an early stage and processed in time, enables operating personnel to know the operating conditions of the equipment well, and not only guarantees the safe operating of the equipment of the transformer substation, but also reduces the management and maintenance cost of the equipment of the transformer substation.
Owner:国核信息科技有限公司

WiFi sharing method and server based on block chain

The invention provides a WiFi sharing method and a server based on a block chain. The method comprises the following steps: acquiring WiFi connection request information sent by a WiFi using terminal;obtaining WiFi connection request information sent by a WiFi using terminal; obtaining WiFi connection request information from the WiFi using terminal. According to the WiFi connection request information, sending resource information and signature information of WiFi to be connected to the WiFi using terminal, so that the WiFi using terminal establishes a connection with the WiFi sharing terminal according to the resource information of the WiFi to be connected and the signature information, thereby using the WiFi to be connected generated by the WiFi sharing terminal. The invention provides a block chain-based WiFi sharing method and a server, By designing a decentralized form of WiFi sharing platform based on block chain, which improves the security of WiFi sharing network, Compatiblewith public WiFi and private WiFi, WiFi providers are authenticated and WiFi users are billed to make WiFi providers profitable, WiFi resources that motivate WiFi sharing and provide convenience to users are realized, user WiFi information is protected and user privacy data is protected.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Freezing-proof bituminous mixture as well as preparation method and construction method thereof

InactiveCN103771765AWith rubbingWith denseIn situ pavingsSnow removalEnvironmental resource management
The invention relates to a freezing-proof bituminous mixture as well as a preparation method and a construction method thereof, and belongs to the field of engineering technology. According to the invention, Mafilon is added into a bituminous mixture, so that the problem that bituminous pavement freezes in winter is solved, and the freezing point of the frozen pavement can be lowered to relieve freezing of the pavement in winter. The preparation process of the freezing-proof bituminous mixture is simple and convenient, so that the service performance of the bituminous mixture is ensured, and the effect of reliving the freezing of the pavement is achieved. According to the invention, the freezing temperature of the pavement can be lowered to about -3 DEG C to -5 DEGC; a pavement of a place with large snowfall is more easily subjected to snow removal as compared with a common pavement, and a great quantity of human, material and financial resources are reduced; the mixture contains components for relieving freezing, so that the effect of preventing accidental freezing is achieved; the driving safety of a car on the pavement can be improved in winter, and traffic accidents are reduced; compared with the common method for removing ice through spilling salt and the like, the ice removing method adopting the bituminous mixture has the advantages that nearly no damage to the environment is caused, a pavement method for protecting ecology is realized, and the pollution to the environment is reduced; the cost for the management and maintenance of the pavement in winter is lowered, and the better economical efficiency is achieved.
Owner:JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD

Self-maintenance and management system and method for unattended intelligent device

The invention discloses a self-maintenance and management system and method for an unattended intelligent device. The method comprises the following steps: 1) the intelligent device is internally provided with a monitoring program used for detecting running status of the intelligent device at regular time and carrying out self-maintenance according to the setting; 2) when the system begins to work normally, the monitoring program records running process and network connection information in the intelligent device, and carries out MD5 verification on important programs in the intelligent device and records summary information; and 3) the intelligent device checks the change conditions of the running process, the network connection and MD5 information of the programs through the monitoring program at regular time, and makes a comparison with initial running process, network connection and MD5 information of the programs, and then, takes corresponding processing measures. With the self maintenance method, the problem of safety fault management of the unattended intelligent device can be solved automatically in a quick and low-cost manner, and the functions of finding the problems automatically and alarming and automatically maintaining the work environment of the system and the like can be realized.
Owner:江苏华视文化传媒有限公司

Credible power access control method based on block chain

The invention discloses a credible power access control method based on a block chain, the method is realized based on a data system in a distributed environment, and the system consists of a front-end web page and the block chain. Due to the characteristics of the block chain, the storage performance of the platform is weak, and the platform only stores the data access address without providing adata storage function. Wherein the front end consists of a Vue framework and Web3.Js for calling a block link port; the block chain platform uses an Ethereum platform, the Solidity language is used on the Ethereum platform to compile the logic of the intelligent contract, and as the Solidity language realizes the complete intelligent contract programming of the graph, the method is based on the private chain deployed by the Ethereum platform. According to the method, the problem that divergence and conflicts may be generated after data exchange among users is solved through power and energy exchange operation chaining, the problem is rapidly positioned, and objective, real and effective proof is provided; and the management cost and the maintenance cost are greatly reduced, and meanwhile,the risks of attacks, privacy leakage and the like caused by centralized management are also avoided.
Owner:BEIJING UNIV OF TECH

Method for improving top-grafting survival rate of camellia trees

The invention discloses a method for improving the top-grafting survival rate of camellia trees. The method includes the steps of grafting time selection, rootstock selection, rootstock treatment, scion collection, grafting, first rootstock binding, second rootstock binding and fostering and fertilizing management. On sunny days from May to July every year, robust camellia tree branches on the camellia trees aged 20 to 30 years are selected as rootstocks; on the basis of a conventional bark-pulling cut-grafting method, it is unnecessary to keep vegetative branches and shading branches, film belts are used for binding the rootstocks from bottom to top one ring after another ring without gaps, and then the rootstocks are covered with moisturizing bags and shading objects; when scion buds survive, the moisturizing bags and the shading objects are removed, and then film belts are used for binding the rootstocks; after grafting, management is conducted in combination with a conventional method. By means of the method, rootstock germination can be effectively inhibited, it is prevented that the rootstocks are subjected to bark cracks and death due to sunburn and water loss of the rootstocks, the costs of management and protection after grafting and crown changing of the camellia trees are effectively reduced, and recovery and formation of crowns of the camellia trees after grafting can be quickened.
Owner:GUANGXI FORESTRY RES INST

Method and device for judging fault of wind electricity doubly-fed generator rolling bearing

The invention discloses a method and device for judging faults of a wind electricity doubly-fed generator rolling bearing. The method comprises the following steps: respectively detecting acceleration signals of a doubly-fed generator driving end and a non-driving end, respectively extracting acceleration extreme point signals so as to obtain a time sequence of acceleration extreme points, respectively calculating elastic support force to obtain a time sequence of the elastic support force, respectively performing DFFT (Discrete Fast Fourier Transform) so as to obtain bearing fault characteristic frequency signal, respectively performing fault judgment on the a doubly-fed generator driving end and the non-driving end according to the bearing fault characteristic frequency signal, and outputting the judgment result. The device comprises a first acceleration sensor, a second acceleration sensor, an acceleration extreme value point extracting module, an elastic support force calculation module, a fault characteristic frequency calculation module and a fault judgment module. The method and the device have the advantages of precise fault detection, high accuracy, convenience and rapidness in detection, convenience in use, and low bearing management and maintenance cost.
Owner:CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

Ecological landscape revetment for river water quality control

The invention relates to an ecological landscape revetment for river water quality control. The ecological landscape revetment comprises an aeration device as well as a base cushion layer and a plurality of module assembling layers which are arranged adjacent to a river revetment and from bottom to top, wherein a staircase structure extending from top to bottom is formed by the base cushion layerand the module assembling layers; each module assembling layer comprises a filler layer and an enclosing support layer surrounding the outer periphery of the filler layer; flow guiding holes are formed in each module assembling layer except the uppermost module assembling layer along the vertical direction and the horizontal direction in a penetrating manner; and the aeration device comprises an aerator on the river bank, an aeration branch pipe embedded in the lowermost module assembling layer and an aeration main pipe in fluid communication with an air outlet of the aerator and an air inletof the aeration branch pipe. The ecological landscape revetment disclosed by the invention not only has the functions of protecting the bank and purifying water, but also has the functions of increasing the dissolved oxygen in the water body through the aeration device and enhancing the pollutant removing effect.
Owner:中建生态环境集团有限公司

Transplanting method for aquatic vegetable brasenia schreberi

The invention belongs to the technical field of aquatic vegetable planting and particularly relates to a transplanting method for aquatic vegetable brasenia schreberi. The method comprises the following steps: adopting a special degradable planting bag; mixing a base fertilizer, pond sludge and garden soil in a certain ratio and preparing into a matrix; spraying naphthylacetic acid in a certain concentration or rooting powder sold in market onto the roots of brasenia schreberi seedlings or soaking the roots into the naphthylacetic acid or rooting powder; quickly planting into the planting bag on land; compacting the soil and then trussing an upper opening of the planting bag; pulling a pulling rope and carefully sinking the planting bag into a destination water bottom; guaranteeing the upward leaves and stems of the brasenia schreberi. According to the method, a planter does not need to enter water, the labor intensity is effectively relieved and the labor cost is saved; meanwhile, the disturbance to water and bottom sludge is extremely reduced; the seedlings are prevented from floating; the rooting of the brasenia schreberi is boosted; the survival rate of transplanting is increased; the method is beneficial to the quick growth recovery of the brasenia schreberi; the fertility is effectively utilized; the possibility of water eutrophication and moss propagation is reduced; the method is suitable for the brasenia schreberi planters to transplant in large scale and is also suitable for the science researchers to plant in small scale.
Owner:NANJING UNIV

Internet-of-things direct drinking water system

The invention discloses an internet-of-things direct drinking water system, and belongs to the technical field of water fountains. The internet-of-things direct drinking water system comprises a direct drinking water purifier body, wherein a cold / hot water output pipe of the direct drinking water purifier body is provided with a first flow sensor and an infrared induction valve; further, an infrared induction probe of the infrared induction valve is located at the top of the surface of a shell of the direct drinking water purifier body; a hot water output pipe of the direct drinking water purifier body is provided with a water temperature sensor; the left side of the direct drinking water purifier body is provided with a tea oven-drying device; the top of the direct drinking water purifierbody is provided with a water inlet pipe; the top of the water inlet pipe is provided with a tap water purification device. The real-time monitoring and management on the equipment running state, theequipment failure condition and the like of each direct drinking water purifier are realized; meanwhile, hot water is controlled by utilizing the infrared induction valve to flow out; a child is prevented from using the internet-of-things drinking water system in the condition of being not accompanied by an adult; a scald is avoided; the manual participation is reduced; the management and maintenance times are reduced; thus, the management and maintenance costs are decreased and the market application prospect is wide.
Owner:JIANGSU FOOD & PHARMA SCI COLLEGE

Tapered centrifugal beneficiation equipment

The invention discloses tapered centrifugal beneficiation equipment. The tapered centrifugal beneficiation equipment comprises a central ore feeding pipe, a centrifugal rotating drum, shunting grooves, intercepting grooves, a hollow shaft rotating platform, a shell, a concentrate groove, a tailing groove, a driving motor, a hollow shaft and a machine frame, wherein the centrifugal rotating drum, the intercepting grooves, the hollow shaft rotating platform, the concentrate groove and the tailing groove are arranged in the shell, the centrifugal rotating drum is located in the center of the interior of the shell, the central ore feeding pipe penetrates through the shell from outside to be right opposite to the bottom of the centrifugal rotating drum, the shunting grooves are uniformly formed in the periphery of the centrifugal rotating drum, the intercepting grooves are formed in the tail ends of the shunting grooves, the concentrate groove is formed in the outlets of the shunting grooves, the tailing groove is formed in the outlets of the intercepting grooves, the centrifugal rotating drum is arranged on the hollow shaft rotating platform, the hollow shaft rotating platform is connected with the hollow shaft, the hollow shaft is connected with the driving motor, and the driving motor is arranged on the machine frame. The tapered centrifugal beneficiation equipment is environment-friendly, efficient, energy-saving, capable of automatically and continuously discharging concentrate and tailings, high in efficiency, low in cost and suitable for high-efficiency sorting of fine-grain mineral so that the sustainable development of resources can be realized.
Owner:KUNMING UNIV OF SCI & TECH

Method for commercialized cultivation of container seedling of cold-resistant japanese cinnamon germplasm

InactiveCN102550271AMeet production quarantine requirementsIncrease commodity rateClimate change adaptationCultivating equipmentsGermplasmGreening
The invention relates to a method for commercialized cultivation of container seedling of cold-resistant japanese cinnamon germplasm. During the process of culturing seedlings, the requirements for the technical links such as seed harvesting, storing, matrix sterilizing and the like are strict; according to the features of different stages of container seedling cultivation, the method of the invention adopts the technical scheme of rational base fertilizer, foliage dressing, water treatment, pruning and so on; and the configuration materials of the matrix are easily-accessible, and are low in cost, and the seedlings have good growth adaptability and grow fast. According to the growth characteristics of japanese cinnamon, the method of the invention divides the container seedling cultivating into two stages so as to effectively avoid the possible damages to the seedlings caused by low temperature in winter and effectively increase the growth speed of the seedlings. The method of the invention uses the technical indicators of seedling age, shape, physiology and so on as the basis, determines the quality grade of seedlings of different usages, reduces the application cost of afforestation and greening, and improves the application effects.
Owner:INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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