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141results about How to "Flexible and convenient construction" patented technology

Forwarding method used for constructing multi-hop routing in wireless self-organizing network

The invention provides a forwarding method used for constructing multi-hop routing in a wireless self-organizing network, which is based on an ARP proxy system and a mixed routing system. The method comprises the following steps that: a monitoring module of each node monitors each message sent and received by the node in real time; adjacent hosts interact respective routing information in a single-hop range in real time; each node stores a partial or complete topology table of the whole network; when a certain node of the network sends an ARP request to a node which is not directly connected with the certain node, the certain node searches for a next-hop node and sends a routing detection message to the next-hop node according to a routing list; and if the route is reachable, the detection message is transmitted to a target node step by step and returns a routing reachable message, and ARP proxy tables are arranged at various nodes along the route, so a multi-hop route is established. The invention also comprises a method for maintaining and updating the route through modification of network topology detection. The invention also comprises a device used in the network, and describes a complete communication system shown in graph 1.
Owner:NANJING UNIV OF POSTS & TELECOMM

Novel multi-network-integrated indoor distribution system

InactiveCN103401598AAvoid duplicationFlexible and convenient network constructionActive radio relay systemsFibre transmissionRadio frequencyDistribution system
The invention relates to a novel multi-network-integrated indoor distribution system. The novel multi-network-integrated indoor distribution system comprises an access unit, an extension unit and a remote end unit, wherein the access unit, the extension unit and the remote end unit transmit signals through digital optical fibers; the access unit can couple multiple downlink radio-frequency (RF) signals from RRUs (Radio Remote Units) of different systems, and the downlink RF signals are converted into baseband digital signals after the downlink RF signals pass through a digital processing unit; the access unit can receive downlink baseband signals from BBUs (Building Baseband Units) of different systems, and the downlink baseband signals can be transmitted together with the baseband digital signals, which are received and processed by an RF coupling port, after the downlink baseband signals pass through the digital processing unit. The novel multi-network-integrated indoor distribution system has the beneficial effects that indoor signal coverage is realized by adopting information source access, digital optical fiber transmission and remote coverage; and the access unit supports signal access of multiple network types and supports signal access of multiple forms. The invention discloses a multi-network-type signal access and coverage system, and repeated construction is avoided, so that the system is energy-saving and environment-friendly; meanwhile, the system supports the signal access of multiple forms, so that network construction is more flexible and convenient.
Owner:SUNWAVE COMM

Composite heat insulation wallboard and manufacturing method thereof

The invention relates to a composite heat insulation wallboard and a manufacturing method thereof. The composite heat insulation wallboard is characterized by comprising a bottom surface layer; the top of the bottom surface layer is connected with a heat insulation layer made of a cement foaming material, a layer of grid-shaped metal framework is embedded in the heat insulation layer close to the top, and the top of the heat insulation layer is connected with a decorative layer; and the left and right sides or left, right, upper and lower sides of the metal framework are provided with circular tubes or square tubes exposed out of the heat insulation layer and used for mounting dry-hang clips. The composite heat insulation wallboard has the characteristics of light weight, high integral strength, good decoration performance and the like at the same time of ensuring the effects of heat insulation and heat isolation; and the manufacturing method is convenient to mount and operate on site, can finish a plurality of working procedures of heat insulation, decoration, reinforcement and the like at the same time during once mounting, and has strong practicability. The composite heat insulation wallboard and the manufacturing method thereof can be widely applied to the occasions of outer heat insulation of outer walls of various buildings or building roofs, and the like.
Owner:BEIJING GREEN GREAT WALL SYST ENG CORP

Graphene high temperature resistant corrosion-resistant coating for metallic material and preparation method of graphene high temperature resistant corrosion-resistant coating

The invention relates to a graphene high temperature resistant corrosion-resistant coating for a metallic material and a preparation method of the graphene high temperature resistant corrosion-resistant coating. The graphene high temperature resistant corrosion-resistant coating consists of the following components in parts by weight: 6-12 parts of graphene oxide, 20-45 parts of a phenolic resin,2-6 parts of polyvinyl butyral, 1-4 parts of rare earth chloride, 12-30 parts of graphene quantum dots, 2-5 parts of a heat conduction metallic powder, 3-6 parts of carbon nanotubes, 12-30 parts of asolvent, 2-6 parts of an antioxidant, 5-9 parts of a curing agent and 12-18 parts of a defoaming agent, wherein the graphene quantum dots is 2-4nm in size; the solid content of the phenolic resin is 45-55%. According to the graphene high temperature resistant corrosion-resistant coating provided by the invention, by the virtue of the good dispersibility of the graphene quantum dots in solvents andrelatively good non-covalent functions of the graphene quantum dots with graphene sheets, two-dimensional sheet structures of the graphene can be overlapped layer by layer in the coating, a compact physical insulating layer can be formed, and the corrosion resistance of the coating can be improved.
Owner:HUNAN GUOSHENG GRAPHITE TECH CO LTD

Portable mobile section speed measurement realization method and system based on satellite positioning system and GIS (Geographic Information System)

The invention relates to a portable mobile section speed measurement method and system based on satellite positioning system and GIS (Geographic Information System). A set of portable monitoring equipment or other portable or fixed monitoring equipment are adopted. The monitoring equipment is connected with a background processing system through a wireless communication system. The system completes vehicle capture and relevant data detection through front-end equipment and transmits the captured vehicle data information to the background processing system for storage. When other front-end equipment in the system captures the same vehicle, the system automatically analyzes the route distance of two points and judges whether the vehicle is overspeed or not at the section. If the vehicle is overspeed, information such as road sections, section limited speed, section distance, average speed and passing time is automatically superimposed as law enforcement evidences. The innovative section speed measurement method provided by the invention has the advantages that the using efficiency of the equipment is greatly improved and the manufacturing cost of the section speed measurement equipment is reduced; through the dynamic section speed measurement system, low-cost high-efficiency realization method and equipment are provided for flexible road traffic speed management and control demands.
Owner:宝鸡市公安局交通警察支队

Temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers

ActiveCN106049209ALittle impact on drivingQuick remediationRailway track constructionEngineeringTrack disease
The invention relates to the technical field of railway ballastless track disease eliminating, in particular to a temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers. The temporary steel rail supporting device comprises steel sleeper beams for supporting temporary passing steel rails and supports fixed on supporting layers below existing rails at the two longitudinal ends of a to-be-constructed area. The steel sleeper beams include two longitudinal beams arranged in the longitudinal direction of the rails and the transverse beams located between the two longitudinal beams, the two ends of the longitudinal beams are laid on the upper end faces of the supports and anchored on the supporting layers below the existing rails at the two longitudinal ends of the to-be-constructed area, the transverse beams are arranged in the transverse direction of the rails, and the two ends of the transverse beams are fixed to the lateral portions of the two longitudinal beams respectively. According to the temporary steel rail supporting device, the steel sleeper beams are used for erecting the construction area overhead and supporting the passing steel rails, a railway line can normally run without stopping, and normal running of the rails is guaranteed; in addition, the disease problem in the supporting layers below the rails and lower structures of the rails can be thoroughly solved, hidden dangers of the rails can be thoroughly eliminated, and high popularization value is achieved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Self-powered intelligent sensor for fluid pipeline

The invention relates to a self-powered intelligent sensor for a fluid pipeline, which is technically characterized by comprising a computer mainboard, a network connector, a sensor, a power supply unit, an electric generator, a storage battery and a turbine, wherein the computer mainboard is respectively connected with the sensor and the network connector; the electric generator is connected with the turbine arranged in the fluid pipeline and is driven to generate power by the turbine; after carrying out voltage stabilization treatment on the electric energy provided by the electric generator, the power supply unit provides power for the computer mainboard, the network connector and the sensor; the storage battery is connected with the power supply unit so as to provide power for the computer mainboard, the network connector and the sensor; or the computer mainboard, the network connector and the sensor are charged by the electric energy provided by the electric generator under the control of the power supply unit. The self-powered intelligent sensor is reasonable in design, solves the problem that the sensor of the fluid pipeline also can be used under the condition without electric power, and has the characteristics of being powerful in functions, wide in usage, convenient to use, free from maintenance and the like, thus playing an important role in the development of Internet of things.
Owner:曲卫晶 +2

Intelligent continuous dynamic compaction machine

The invention discloses an intelligent dynamic compaction machine. The intelligent dynamic compaction machine comprises a loader and a compaction mechanism connected with the loader, wherein a loader is provided with a fuel tank, a fuel pump and a radiator connected with the fuel tank, and an engine connected with the fuel pump; the compaction mechanism is provided with a frame, a fuel cylinder support plate connected with the frame and a fuel cylinder connected with the fuel cylinder support plate, a movable pulley is connected with the top of a piston rod of the fuel cylinder, a soft connector is wound on the movable pulley, one end of the soft connector is fixedly connected with the frame, the other end of the soft connector is connected with a compaction hammer; a compaction operation condition detection system is arranged on the frame, and the loader is furthermore provided with a hydraulic system connected with the fuel pump and an intelligent control system connected with the compaction operation condition detection system and the hydraulic system. The intelligent dynamic compaction machine has characteristics of reasonable design, convenience for use and operation, capability of intelligently continuously compacting, relatively large compaction powder, large compaction thickness and compaction infection depth, high intelligent degree, complete function, stability and reliability in operation, strong practicability and high popularization and application value.
Owner:西安长大公路养护技术有限公司

Self-spraying type silica gel insulation paint and manufacturing technology thereof

The invention relates to a self-spraying type silica gel insulation paint. The paint is composed of hydroxy-terminated polysiloxane, nano white carbon black, a filling material, an adsorbent, an activator, a crosslinking agent, a coupling agent, a catalyst, a solvent, and a propellant. The added adsorbent can absorb the water to form crystal water, wherein the water exists in the air, which is mixed into the paint during the processing process, solvent, or propellant; thus the crosslinking agent in the tank will not carry out hydrolysis, and the vulcanization and gelation of paint is avoided. The added activator can diffuse to the paint surface at first and carry out reactions with water in the self-spray tank to remove the water; thereby the storage period of the paint in a self-spray tank is effectively prolonged, and the storage period can last at least one year. The provided paint has a self-spray function, the small-package design makes the construction be more flexible and convenient, the operation difficulty in the field and high altitude is alleviated, human resources, material resources, and financial resources are greatly saved, and the construction cost is reduced. The invention also discloses a manufacturing technology of the self-spraying type silica gel insulation paint.
Owner:FUJIAN RUISEN CHEM

Preparation method of fiber reinforced polymer sheet

The invention provides a preparation method of a fiber reinforced polymer sheet, and relates to a manufacturing method of the fiber reinforced polymer sheet used for enhancing and reinforcing an engineering structure. The preparation method comprises the following steps of: preparing a mixed fiber cloth; performing local reinforcement on two ends; and obtaining a finished product by a process of folding the mixed fiber cloth and prefabricating the two ends into waveform. The fiber reinforced polymer (FRP) sheet prepared by the method is small in width, is easy to be clamped and anchored by a wave-shaped-gear grip anchor, can bring the ultimate strength into full play, can significantly improve the reinforcement effect of the engineering structure, and is simple in manufacturing process, convenient in construction and low in cost. The method provided by the invention has the characteristics of flexible preparation mode, simple process, less production equipment, low cost and the like. The FRP sheet prepared by the method is widely used for enhancing and reinforcing newly-built or built engineering structures, and is particularly suitable to be used as a prestressed material to reinforce bridges or building constructions, and used as a stay cable, a suspension rod and the like for manufacturing bridges.
Owner:重庆固桥智能科技研究院有限公司

Suspended-ceiling assembled steel frame transfer story

The invention relates to a suspended-ceiling assembled steel frame transfer story which comprises transfer story vertical rods, transfer story transverse rods, lead screws, multiple first hanging parts, second hanging parts, clamping parts, main keels, auxiliary keels and fasteners. The transfer story vertical rods and the transfer story transverse rods are connected, the first hanging parts are connected with the transfer story transverse rods, the multiple hanging parts are arranged at intervals, the lead screws are connected with the first hanging parts through the fastening parts, the second hanging parts are connected with the lead screws, the main keels are installed on the second hanging parts, the auxiliary keels are connected with the main keels through the clamping parts, and theauxiliary keels are located below the main keels. The suspended-ceiling assembled steel frame transfer story utilizes a physical structure form to install and fix a keel system on a steel angle transfer story. Due to the fact that a penetrating-plugging hook mode is adopted for the first hanging parts and the second hanging parts, the separation distances of the hanging parts can be optionally adjusted on steel angles, construction is flexible, quick and convenient, and meanwhile a certain space exists in each hanging part, so that effective adjustment of the flatness of a suspended ceiling can be achieved by utilizing fastening nuts.
Owner:GOLD MANTIS CONSTR DECORATION

Small tubular pile reinforcement system for weak base of tunnel and method for constructing small tubular pile reinforcement system

InactiveCN106246200ALarge processing depthControl uneven settlement deformationUnderground chambersFoundation engineeringTerrainIn plane
The invention relates to a small tubular pile reinforcement system for a weak base of a tunnel and a method for constructing the small tubular pile reinforcement system. Foundations of a tunnel portal at a bridge and tunnel joint directly extend into terrains such as deep valleys in a direct transition manner, the terrains correspond to a bridge, and treatment on the foundations of the soft base at the bridge and tunnel joint has important significance on the stability of integral construction structures at a bridge and tunnel transition position. The small tubular pile reinforcement system is characterized in that a concrete supporting plate is arranged below a tunnel inverted arch structure of the tunnel portal at the bridge and tunnel joint, and steel tubular piles which are arrayed are arranged in the foundations below the concrete supporting plate; the depths of the steel tubular piles are gradually inwardly reduced from the portal, and the steel tubular piles are stepped along the directions of lines and are arranged are arranged in a quincuncial manner in planes. The small tubular pile reinforcement system and the method have the advantages that the small tubular pile reinforcement system is large in foundation treatment depth and small in treatment area, the bearing capacity of the weak foundations can be obviously improved after the small tubular pile reinforcement system is constructed, settlement and deformation of the foundations can be controlled, and normal use of the structures can be guaranteed.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Self-repairing waterborne epoxy/asphalt compound waterproof coating and preparation method thereof

The invention relates to a self-repairing waterborne epoxy/asphalt compound waterproof coating and a preparation method thereof, belonging to the technical field of a coating. According to the technical scheme, the method comprises the following steps: utilizing polyether polyol and MDI-50 to compound a polyurethane prepolymer with -NCO content of 20%; dipping 30-50 micron of water absorbent in the polyurethane prepolymer till being saturated; dispersing in paraffin molten mass; atomizing, quickly freezing and generating paraffin for wrapping a high water absorbent microcapsule containing the polyurethane prepolymer; dispersing the microcapsule in water, thereby forming a microcapsule dispersing solution containing the high water absorbent microcapsule; mixing the water-borne epoxy resin emulsion, waterborne epoxy curing agent, emulsified asphalt, butadiene-acrylonitrile latex, microcapsule dispersing solution, padding and additives and curing into a film, thereby forming the waterborne epoxy/asphalt compound waterproof coating with a self-repairing function. When the waterproof material is scratched and cracked, the high water absorbent in the microcapsule can quickly absorb water for swelling and the polyurethane prepolymer can participate into chain extension reaction for generating solid while meeting water, so that the purposes of quickly repairing the cracks and preventing water leakage can be achieved.
Owner:TAIYUAN LUBANG TECH CO LTD
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