53results about How to "Have self-healing ability" patented technology

The present invention relates to an OPC UA data service gateway device and an implementation method thereof. The method and device are used for realizing an embedded OPC UA server in the condition of applying industry-standard communication protocol OPC UA, the related information data of different types of field equipment such as an instrument and a PLC can be collected periodically, the equipment is mapped to an OPC UA address space, corresponding equipment model and equipment relation model are established, and the identification and management of the field equipment are realized. At the same time, in order to achieve the interaction between an OPC UA client and the server, an OPC UA transaction management mechanism is applied, and thus the OPC UA server can provide monitoring, listening, inquiring and other services for the client. The invention aims to use an OPC UA protocol to realize an equipment interface technique with the support of multiple wireless communication protocol standards, service adapter hardware with low power consumption and easy expansion is used as a carrier, and thus the underlying protocol and implementation are not considered in carrying out automatic control.

The invention discloses a graphene / carbon nanotube cement-based waterproof material and a preparation method thereof. The waterproof material is prepared from the following raw materials in parts by weight: 1.2-2 parts of an aqueous solution and 15-25 parts of powder, wherein the aqueous solution is prepared from the following materials in parts by weight: 0.005-0.03 part of graphene, 0.005-0.3 part of a carbon nanotube, 0.8-1.2 parts of water, 0.1-0.3 part of a dispersing agent and 0.1-0.3 part of a defoaming agent; and the powder is prepared from the following materials in parts by weight: 6-9 parts of portland cement, 12-14 parts of silicious fine sand, 0.6-1 part of an industrial residue, 0.8-2 parts of a superfine silica mineral admixture, 1.5-3.5 parts of a silica mineral admixture, 1.2-2.2 parts of bentonite and 0.1-0.4 part of a reductive water reducing agent. The graphene / carbon nanotube cement-based waterproof material has the advantages that firstly, the graphene / carbon nanotube cement-based waterproof material has good impermeability and good impervious self-healing ability and the service life is prolonged; and secondly, the waterproof material can form a compact surface enhancement layer on the surface of a concrete structure, can play a waterproofing role, and is capable of reducing the carbonization depth of concrete.

The invention discloses a current hysteresis control method of a three-phase four-switch-type active filter. The hysteresis control method of the three-phase four-switch-type active filter comprises the following steps: 1, firstly, three-phase reference directive current of an active filter and three-phase compensation current output actually are converted into a coordinate system with alpha-beta two-phase orthogonality by Park conversion; 2, output signals d alpha and d beta are obtained from error signals between the reference current and the actual output current after Park conversion by a hysteresis comparator; 3, a corresponding switch state table is obtained according to the topological structure of the three-phase four-switch-type active filter, and the switch action functions of two bridge arms are obtained by combining with the hysteresis comparison result and the switch state result, so that the hysteresis control of the three-phase four-switch-type active filter is realized. The hysteresis control method of the three-phase four-switch-type active filter, which is provided by the invention, is simple and reliable, is good in dynamic performance, and has favorable economic significance and market prospect.

The invention discloses a preparation method of a magnesium alloy surface phosphorus-free chromium-free conversion coating, which comprises the following steps: removing oil from the magnesium alloy, cleaning with acid, activating and treating the magnesium alloy in a conversion solution, which is composed of metavanadate, villiaumite, rare-earth salt and alkaline earth metal salt, at 10-99 DEG C under the pH value of 0.5-4.0 for 1-45 minutes, thereby forming a phosphorus-free chromium-free conversion coating on the magnesium alloy surface. The phosphorus-free chromium-free conversion coating has the advantages of excellent corrosion resistance and uniform color, and has certain self-recovery capacity.

The invention relates to a construction method of ecological bank revetment, in particular to a construction method of ecological bank revetment with landscape function and simple construction. In the method, triangular prism shaped building blocks are built on a bank from bottom up and connected with connection members, plant is planted on each layer of the building blocks, and an ecological corridor is formed under each layer of the building blocks. The system solves the problem that channel revetment landscape function and ecological function can not be achieved simultaneously at present. When the bank revetment is constructed, flower / grass is planted in a plant flume on the building block and matches with a shaped pattern to form a landscape wall, and the ecological corridor provides a living and habitat place for aquatic animals and microbes. The building blocks in horizontal rows are connected in series by connection members and anchored to enhance the stability of the overall structure and water flow impact resistance. The inventive landscape ecological bank revetment provides multiplication and living conditions for aquatic plant / animals and microbes, forms a small-sized ecological system where plant / animals and microbes are symbiotic and coexistent at the water area-land transitional zone of a river channel, and plays the role of river channel ecological regulation and water purification.

The invention discloses a wireless sensor network based micropower meter reading system and device. Each micropower wireless transmitting-receiving module is connected with intelligent electricity meters via RS485 wires, collects, packs and encodes power utilization information in the intelligent electricity meters, and transmits the information to a meter reading concentrator via a short range communication network; and the meter reading concentrator packs and encodes different packed data, in different periods, received from at least two micropower wireless transmitting-receiving modules, and sends the packed and encoded data to a data center via a remote communication network within prescribed time. A wireless sensor network media access control protocol is fused with a network clock synchronization mechanism, and the work state of an RF communication module is changed to improve the energy efficiency of the whole system on the basis that coordinated work and wakeup period of nodesin the network are controlled accurately.

The invention relates to a snowflake grid type grid construction method suitable for urban medium voltage distribution networks. The method comprises the following steps: selecting equipment of a snowflake grid type grid for constructing the 10kV medium voltage distribution networks; constructing a main gird of the snowflake grid type grid consisting of a feeder line cluster; connecting the equipment on the main grid; and constructing a load transfer passage to form the snowflake grid type grid. The method has the effects that each feeder line in the target grid structure formed by adopting the method is reasonably segmented and contacted, has automatic detection, isolation and network reconstruction for failures and self-healing capacity of power restoration, and can meet the power supply requirement of various types of users, so that the utilization efficiency of power distribution equipment is improved, optimal allocation of resources and optimal capital efficiency are realized, the benefit efficiency of the grid is fully developed, and thus the target grid structure is more scientific and complete. The method is easy to master and operate, simple and clear, and is convenient for actual operators to master skillfully.

The invention discloses a cement based penetration crystallization type waterproof material, which is prepared from the following substances of: by weight, 1% of portland cement, 0.6-0.7% of quartz sand, 0.08-0.1% of silicon powder, 0.002-0.003% of a water repellent and 0.005-0.1% of cellulose. The waterproof material provided by the invention has good caking property, waterproofness and permeability, can overcome disadvantages of a cement based penetration crystallization type waterproof material in the prior art, is suitable for large-scale popularization and application, and has substantial economic benefits and social benefits.

The invention discloses a dust prevention curing process for a temporary construction load. The dust prevention curing process comprises the following steps: step 1, curing construction of the road: A, laying and curing a lower layer road foundation; B, laying and curing an upper layer road foundation; C, sealing the upper layer road foundation and the lower layer road foundation after curing for more than 10 hours to obtain the cured road; and step 2, performing dust prevention curing construction on the cured road: spraying a dust depressor solution onto the surface of the cured road according to the proportion of 1.0-1.5 L / m[2]. According to the dust prevention curing process for the temporary construction load, the road construction period is shortened, the road damage rate is reduced, the road maintenance is facilitated, the maintenance cost is reduced, and regreening and recultivation after the road is abandoned in the later period are facilitated.

The invention relates to a soft platoon made up of concrete block and civil gratings or civil meshes, which has function for protecting the bank and slope. The invention pours the concrete directly or adheres the preprocessed blocks and fixes them on the civil gratings or the civil meshes with type of block, thus it guarantees the durability and the security of the platoon. The platoons are connected together by the hook embedded in the block or the civil gratins and the civil meshes are connected or welded together with clamp type; the concrete can be processed into the one with low alkali density and with connected aperture, which can be filled with soil for the plant to grow, then it is formed into green project which has protection function to bank.

An embodiment of the invention provides a node state detecting method and a device thereof, wherein the method and the device are used for detecting the operation state of one target node in a non-network type positioning system. The node state detecting method comprises the steps of acquiring signal data which comprises data of at least one wireless signal that is received by a data acquisition terminal in a movement process in a system, wherein the data acquisition terminal passes through the target node in the movement process; determining whether the acquired signal data have a characteristic which is indicated by standard signal characteristic information; and determining the operation state of the target node according to a determining result. The node state detecting method and thedevice thereof realize automatic detection for the node operation state of the non-network type positioning system.

The invention belongs to the field of polymer preparation, and relates to self-healing hyperbranched polyurethane with high mechanical strength as well as a preparation method and application of the self-healing hyperbranched polyurethane. The method comprises the following steps: making polytetrahydrofuran, N-(4-hydroxy-3-methyl phenyl methylene)-p-hydroxyaniline (VA) and isophorone diisocyanate react to obtain an isocyanate-terminated polyurethane prepolymer, and then, making the isocyanate-terminated polyurethane prepolymer, hyperbranched polyester, triaminopyridine and tannic acid heated to 80 DEG C under the protection of nitrogen and react to obtain the self-healing crosslinked polyurethane based on the hydrogen bonds. The preparation method of the self-healing polyurethane is novel, the hyperbranched polyester reacts with the isocyanate group-terminated prepolymer to prepare the polyurethane with relatively strong self-healing capability and relatively high mechanical strength, and the self-healing polyurethane has a wide market prospect. Steps are simple, operation is convenient, and practicability is high.

The invention relates to a smart home control system, comprising a transmitter and a load receiver, the transmitter includes an energy generating circuit module, a modulation module, a transmitter coil, a wireless receiver module and a transmitter microprocessor for processing feedback information signals The load receiving end includes a receiving coil, a rectifying and filtering circuit module, a demodulation module, and a wireless transmitting module; the smart home control system of the present invention transmits energy signals and control information signals through coupling and resonance, so that the energy signals and control information signals Synchronous transmission in a single channel not only enhances the anti-interference ability of the system, but also simplifies the arrangement procedure of the load receiving end and improves the efficiency of energy transmission. The control method of the present invention makes the transmitting end and the load receiving end form a response system, monitors and controls the load receiving end in real time, realizes information interaction between the outside world and household appliances, and satisfies people's needs for safety, comfort and convenience in life.

The invention provides a cable insulating material and a preparation method thereof and relates to the technical field of materials. The preparation method of the cable insulating material comprises 60-100 parts of butadiene-vinyl pyridine rubber, 1-15 parts of a modified bone glue adhesive, 1-3 parts of a transition metal compound, 0.5-1.5 parts of a rare-earth metal compound, 0.5-1.5 parts of anantioxidant and 1-5 parts of a zinc oxide crystal whisker. The cable insulating material has the characteristics of being good in self healing capability, good in toughness and good in insulating property. The preparation method of the cable insulating material comprises the following steps: mixing and fusing the butadiene-vinyl pyridine rubber, the modified bone glue adhesive, the transition metal compound, the rare-earth metal compound, the antioxidant and the zinc oxide crystal whisker, and carrying out extrusion molding. The method is simple to operate, good in controllability and feasible in large-scale production.

The invention discloses a server remote monitoring and emergency disposal system and method. The system and method can be used for carrying out remote monitoring on telecommunication room servers. The system comprises a plurality of client sides and a monitoring master station, and data transmission between the client sides and the monitoring master station is carried out through a TCP / IP control / internet protocol. Each client side is provided with a data chaining module, a data monitoring module, a process monitoring module, an alarm monitoring module and an emergency disposal module. The monitoring master station is provided with a communication chaining module, a data receiving module, a data analyzing module, a data output module and an emergency control module. The disposal method includes four steps, that is, chaining request, data collection, data process and controlling of the working state of client side servers. The server remote monitoring and emergency disposal system and method not only can achieve real-time monitoring on server running data in a telecommunication room and active reporting of alarm signals, but also can achieve one-key type remote turn-off in batches when unexpected emergencies happen to the telecommunication room, and ensure integrality of the data in the servers.

The invention discloses a high-viscosity cement-based permeable crystallization type waterproof material which consists of the following substances in percentage by mass: 1 percent of silicate cement, 0.6-0.9 percent of quartz sand, 0.08-0.12 percent of silica powder, 0.002-0.004 percent of water repellent and 0.005-0.012 percent of cellulose. The high-viscosity cement-based permeable crystallization type waterproof material has high adhesiveness, water resistance and air permeability, can overcome the defects of a cement-based permeable crystallization type waterproof material in the prior art, is suitable for large-scale popularization and application and has obvious economic benefits and social benefits.

The invention provides a self-healing hydrogel and a preparation method thereof. The self-healing hydrogel is composed of carbazole modified aldehyde sodium hyaluronate, hydrazide sodium hyaluronate and deionized water, and the strength of the self-healing hydrogel ranges from 1000 cps to 100000 cps. The preparation method of the self-healing hydrogel provided by the invention comprises the following steps: preparing a first mixed solution of sodium hyaluronate, deionized water and sodium periodate, and carrying out aldehyde reaction to obtain aldehyde sodium hyaluronate; then, preparing a second mixed solution of aldehyde sodium hyaluronate, an aprotic solvent and carbazole, adding an activating agent and a sharing agent, adjusting the pH value, and carrying out carbazole grafting reaction to obtain carbazole modified grafted aldehyde sodium hyaluronate; and finally, uniformly mixing the prepared carbazole modified grafted aldehyde sodium hyaluronate, hydrazide sodium hyaluronate anddeionized water according to a preset proportion to obtain the self-healing hydrogel. The self-healing hydrogel prepared by the invention has excellent self-healing performance and biocompatibility, and also has special photoelectric characteristics.

The invention discloses a concrete continuous tooth wall structure without structural joints. The concrete continuous tooth wall structure comprises a concrete tooth wall which is arranged in a full-length mode and is not provided with the structural joints, a plurality of grooves are formed in the top of the concrete tooth wall at intervals, induction joints are formed in the bottoms of the grooves, silty-fine sand soil is laid in the grooves, and geotechnical cloth covers the silty-fine sand soil. The concrete continuous tooth wall structure is suitable for hydropower and hydraulic engineering adopting concrete tooth wall seepage prevention, through structural arrangement type optimization design, structural parting is canceled, the construction procedure is simplified, long-term operation safety of dam and reservoir seepage prevention systems is guaranteed, and economic losses caused by maintenance after reservoir water storage are reduced.

A corrosion-resistant electric power steel pipe pole belongs to the technical field of an electric power steel pipe pole. The electric power steel pipe pole includes a steel pipe pole body and a protective layer arranged at the external surface of a steel pipe pole wall. The protective layer comprises, by weight, 20-30 parts of a hydroxyethyl cellulose aqueous solution, 0.1-0.2 part of glycerin, 1-3 parts of propanediol, 3-5 parts of propylene glycol butyl ether, 60-70 parts of a pure silicone acrylic emulsion, 0.05-0.1 part of sodium trichlorophenolate, 0.1-0.2 part of magnesium hydroxide, 0.1-0.2 part of zinc dimethyldithiocarbamate, 0.1-0.2 part of castor bean carbonized powder, 0.3-0.5 part of hydroxypropyl starch ether, 0.2-0.4 part of ethylene bisstearamide, 0.05-0.1 part of aluminium-magnesium silicate, 0.05-0.1 part of corn pollen, and 0.05-0.1 part of cyclodextrin. The pH value is adjusted to 8-9. The electric power steel pipe pole is good in corrosion resistance and long in service life, and has advantages of permeability resistance, water resistance, small mass, good flexibility and high strength.

The invention provides a production method of carbide slag cement, and belongs to the technical field of cement production, and the production method comprises the following steps: taking sandstone, iron ore and slag for burdening, feeding into a roller press for grinding, mixing the obtained discharged material with fly ash, and sorting to obtain an auxiliary material finished product; mixing the carbide slag and the auxiliary material finished product, and homogenizing in a raw material homogenizing silo; sequentially preheating and pre-decomposing the homogenized raw material, feeding into a rotary kiln for calcining to obtain clinker, feeding the clinker into a grate cooler for cooling, and feeding into a clinker warehouse for storage for later use; the clinker, the desulfurized gypsum, the slag and the fly ash are mixed and then fed into a combined grinding system to be ground, and a cement finished product is obtained. The method is used for solving the problems of consumption of a large amount of native natural resources in cement production, treatment of carbide slag and other solid wastes and pollution; according to the method, calcium carbide slag is used for replacing limestone to produce cement, the quality of a cement finished product is stable, the consumption of native resources is remarkably reduced, industrial solid waste is recycled, and the production cost is reduced.

The invention provides a differential optical fiber transmission GOOSE signal digital selective tripping protection method. A-group outgoing line cabinets of a first traction substation transmit overcurrent starting GOOSE signals to B-group outgoing line cabinets through a first switch, then the signals are transmitted to B-group incoming cabinets of a second traction substation on the opposite side, the B-group incoming cabinets send overcurrent starting GOOSE signals to A-group incoming cabinets of the second traction substation through a second switch, and a problem that a differential protection optical fiber channel and a digital communication overcurrent protection optical fiber channel cannot be shared is effectively solved, the communication network has main and backup protection redundancy and self-healing capability, interval communication optical cables are reduced, and interval protection communication channel construction cost and the construction and maintenance workloadare greatly reduced; the defect that main protection and backup protection of the incoming and outgoing line intervals fail at the same time due to interruption of interval differential optical fibercommunication is overcome, and reliability and safety of interval protection of the power supply system are enhanced.

The invention discloses a multi-functional wireless positioning search and rescue instrument, comprising a control core digital signal processor (DSP), a radio frequency system control module, an antenna, an audio system control module, a sound generator and a sonic probe, wherein the control core DSP is used for calculating and processing various data signals and performing coordination and management among modules of the wireless positioning search and rescue instrument; the radio frequency system control module is connected with the control core DSP and is used for processing a radio frequency signal; the antenna is connected with the radio frequency system control module and is used for controlling feed; the audio system control module is connected with the control core DSP and is used for processing a sound wave signal; and the sound generator and the sonic probe are connected with the audio system control module. The multi-functional wireless positioning search and rescue instrument utilizes multiple mediums such as radio frequency, audio frequency, infrared for comprehensive transmission and analysis, and provides a flexible and reliable positioning mode, a communication network has self-healing capability after an accident occurs; moreover, the search and rescue instrument conforms to a protocol 802.11b, is compatible with the internet and has high extensibility and is convenient for networking.

The invention discloses a current hysteresis control method of a three-phase four-switch-type active filter. The hysteresis control method of the three-phase four-switch-type active filter comprises the following steps: 1, firstly, three-phase reference directive current of an active filter and three-phase compensation current output actually are converted into a coordinate system with alpha-beta two-phase orthogonality by Park conversion; 2, output signals d alpha and d beta are obtained from error signals between the reference current and the actual output current after Park conversion by a hysteresis comparator; 3, a corresponding switch state table is obtained according to the topological structure of the three-phase four-switch-type active filter, and the switch action functions of two bridge arms are obtained by combining with the hysteresis comparison result and the switch state result, so that the hysteresis control of the three-phase four-switch-type active filter is realized. The hysteresis control method of the three-phase four-switch-type active filter, which is provided by the invention, is simple and reliable, is good in dynamic performance, and has favorable economic significance and market prospect.

The invention discloses a passivation solution and method applicable to an improvement in the hot-dip galvanized steel surface corrosion resistance. The passivation solution comprises the following components: 13-17 g / L of titanium sulfate, 8-10 g / L of nickel sulfate, 6-8 g / L of GPTMS, 0.05-0.15 g / L of nanometer silicon carbide, and the balance deionized water. The passivation method comprises thefollowing steps: putting the passivation solution in a passivation tank; adjusting the temperature and the pH value of the passivation solution; and taking a galvanized workpiece out of a hot-dip galvanizing bath, directly putting the galvanized workpiece in the passivation tank for passivation, and carrying out cleaning and drying. By adoption of the organic-inorganic combined composition as well as the composite passivation method of titanium salt, silane and nanoparticles, the thickness of a film layer can be increased, the uniform dense self-healing film layer can be acquired, and then the corrosion resistance can be improved; the environmental pollution can be reduced; after the passivation, the galvanized workpiece can be directly cleaned and dried; and the composition is simple, the cost is low, the passivation method is easy to operate, the practicability is very high, and the applicability is high.

The invention provides an electric detonator ignition device without a sensitive initiating explosive device drug. The electric detonator ignition device comprises a shell and an inner core covered in the shell, wherein the inner core is a tantalum metal block with a spongy porous structure and is internally filled with irregular pores which are communicated with one another; a unilateral conducting layer, a negative main body layer, a graphite conducting layer and a silver conducting layer sequentially cover the surfaces of the porous structure and the geometric profile of the tantalum metal block; a positive input end penetrates through the negative main body layer and the unilateral conducting layer to be connected with the tantalum metal block; the shell is a semi-closed rectangular box body, the middle part of the front face of the shell is provided with a groove from top to bottom, and the inner core is partially exposed out of the groove; the groove aligns to a connection part of a negative end electrode pin and the silver conducting layer; insulating fillers are filled between the shell and the inner core. The ignition device disclosed by the invention is large in working temperature range, high in ignition spraying temperature, great in pressure, long in duration time, far in acting distance, high in high-temperature resistance and anti-jamming capability, small in size and safe and convenient in storage and transportation, and is suitable for application of an electronic digital detonator with automatic delaying function.

The invention relates to a preparation method of insulating paper with acid-base durability and a hydrophobic self-repairing function. According to the invention, an insulating paper board for a transformer is adopted as a base material, PTFE hydrophobic nano particles, fluorinated alkyl silane (FAS) and a fluorocarbon surfactant ST-110 are adopted as main raw materials and can form a dispersion capable of being used as a coating material in deionized water under the synergistic effect, and NHCl4 is adopted as a suspending agent, and is added, so that the dispersion can form a durable and uniform coating solution in water; after the coating material is uniformly sprayed and dried, the insulating paper has good hydrophobic and oleophobic performance; the durability is realized, and the performance is not obviously reduced after being placed in air, water and oil environments for more than 30 days; good acid and alkali resistance is achieved; and when the insulating paper can be wetted by water, the insulating paper does not have hydrophobicity, but the hydrophobic characteristic of the insulating paper can be recovered after the insulating paper is heated at 130 DEG C for 10 minutes.