32results about How to "Zero maintenance" patented technology

A low-cost minimal-loss zero-maintenance flywheel battery, to store electric power from a DC power source by conversion to kinetic energy, and regenerate electric power as needed. Its vertical spin-axis rotor assembly is supported axially by repelling annular permanent magnets, and is centered by ceramic ball bearings which have axial preload that prevents vibration and augments axial rotor support. A regenerative multi-pole permanent-magnet motor, controlled by its 2-phase stator current, and connected by power and signal conductors to power interface electronics, is integrated within the flywheel assembly, in a vacuum enclosure supported by a self-leveling structure. Sinusoidal 2-phase stator currents are controlled by high-frequency pulse-width-modulated H-bridge power electronics that draw and regenerate controlled DC current with minimal ripple, responsive to respective 2-phase rotation angle sensors, the DC power voltage, and other settings. The electronics includes logic and over-voltage protection to prevent otherwise possible damaging current and voltage.

Provided are an unmanned aerial vehicle (UAV) obstacle avoidance method and device based on a 3D camera. The device comprises a 3D camera, a visual analysis module, a flight control main module and an inertial navigation module. The 3D camera is responsible for collecting image data in real time; collected image data and the UAV attitude information provided by the inertial navigation module are sent to the visual analysis module for analysis through an algorithm, and an analysis result is timely fed back to the flight control main module; the flight control main module adjusts flight parameters according to flight line adjusting parameters. The obstacle avoidance technology is based on the passive image analysis technology, and thereby the UAV obstacle avoidance device has the advantages of small size, light weight, low cost, small consumption, rapid response and high success rate, and can be applied to unmanned helicopters, and various rotor wing and fixed wing UAVs.

The invention relates to a speed and relative position real time measuring system and method for the vehicles on highway. The system contains passive response device that contains unique radio frequency identification code that could show the location of itself, reader that is set on vehicle to send active signal and receive radio frequency information and take data exchange with server through wireless communication network, server that receives the radio frequency and takes analysis and process to gain the real time information and sends back to reader. The method also relates to the method to test the speed and relative position on highway by the device. It has the advantages of high accuracy and low cost, and needs not to be maintained.

The invention discloses an ultra-violet LED face light source for a PCB exposure machine. The ultra-violet LED face light source comprises a plurality of water-cooling type ultra-violet LED lamp box units, wherein each water-cooling type ultra-violet LED lamp box unit comprises M*N ultra-violet LED lamp beads arranged on an element installation face of a copper substrate and arranged into a matrix structure, all the ultra-violet LED lamp beads are in series connection, each ultra-violet LED lamp bead is covered with a reflection cup, all the reflection cups are arranged on a reflection cup installation plate, the reflection cup installation plate is connected with the element installation face of the copper substrate, a unit water tank is arranged on the water passing face, opposite to the element installation face, of the copper substrate, and a temperature controller is arranged on the unit water tank. The ultra-violet LED face light source for the PCB exposure machine is remarkable in energy-saving effect, large in exposure area, far in exposure distance and high in energy uniformity. The light source is stable and reliable, performance is far more superior than a traditional light source, is low in cost and free of pollution and radiation, and can completely replace the traditional light source.

The invention provides an apparatus capable of on-line continuous monitoring of the pH value of a water sample and automatic cleaning of an electrode, which relates to the technical field of environmental protection equipment. According to the invention, a hairbrush is connected with a hairbrush cleaning motor; one end of a pH electrode is connected with a rotary actuator; a measuring tank is arranged below the pH electrode; an ultrasonic cleaning tank is arranged at one side of the measuring tank; one end of the ultrasonic cleaning tank is connected with an outlet channel through an overflow weir; the lower end of the measuring tank is connected with an inlet groove; the inlet groove is connected with an inlet pipe; and the measuring tank and the ultrasonic cleaning tank are both connected with a limit stroke switch which is interlocked with a linear motor. With the apparatus, automatic continuous monitoring of a pH value and automatic cleaning are realized, and accuracy of measuring of the pH electrode is improved.

The invention relates to a manufacturing method of a composite lightweight flexible high thermal conduction carbon/metal connection member and belongs to the technical field of connection members. According to the method, firstly, surface treatment on brightness of a carbon material is carried out, one or more layers of metal is plated on the surface in a chemical or an electroplating mode, the treated carbon material and the metal are composited, the composition effect of the carbon/metal is greatly reinforced, and the interface thermal resistance between the two can be effectively reduced. According to the method, the manufactured composite lightweight flexible high thermal conduction carbon/metal connection member has higher thermal conduction coefficient than copper, and density is only one quarter of the copper. Through the method, requirements of weight reduction and efficient thermal conduction of the aerospace field and portable electronic devices can be satisfied; as the connection member is flexible, the distance and the position between the electronic device and a heat sink can be flexibly designed and adjusted, and strong designability is realized.

The invention provides an enterprise production data monitoring method based on industrial Internet of Things capable of safely transmitting the data and analyzing and visually displaying the data. The method comprises the following steps: S1, data collecting step; S2, data transmitting step, wherein the data transmitting step comprises: transmitting the production data to a server through a dataencrypting step; S3, data analyzing step, wherein the data analyzing step comprises: storing the production data into a database based on data logic and analyzing the production data according to things logic through a middle layer server; and S4, data displaying step. According to the enterprise production data monitoring method based on industrial Internet of Things, the influence of each data in the generation process on the energy consumption is visually displayed to a manager in a production energy consumption neural network paraphrase manner, so that a production decision can be conveniently made by the manager, and energy consumption is reduced.

The invention discloses an ultra-long guide rail for a three-coordinate measuring machine. The ultra-long guide rail comprises branch guide rails and front and rear bases for the branch guide rails, wherein four bolt holes for arranging full-thread screws are formed in a lower bottom plate of each of the front and rear bases, and threaded holes are formed in vertical plates and upper bottom plates of the front and rear bases; an elastic adjusting bolt is arranged in one threaded hole of each vertical plate, and rigid adjusting bolts are arranged in the other threaded holes of each vertical plate; a square hole is formed in each of the two ends of each of main and auxiliary lateral surfaces of each branch guide rail, and a pair of stepped holes communicated with the corresponding square holes is formed in each of the front and rear end faces of each branch guide rail; springs are arranged in the stepped holes of the spliced end faces; the full-thread screws penetrate through the springs in the stepped holes; the two ends of the full-thread screws are positioned in the corresponding square holes respectively, and are locked by nuts. The ultra-long guide rail is high in planeness accuracy, straightness and splicing seam bonding accuracy, strong in splicing seam bonding strength, small in bonding seam thickness, simple in structure, easy to assemble, free of maintenance and low in cost, influence on accuracy when air bearings pass through bonding seams is avoided, and the accuracy, comprising the planeness and the straightness, of the guide rail is kept unchanged when temperature is changed.

The invention discloses a GIS internal bus operating temperature online monitoring system and method based on the acoustic surface wave technology. The system comprises a collector and an SAW temperature sensor. The collector is installed on a shell of a gas insulating switch. A bus is arranged in the shell of the gas insulating switch. The SAW temperature sensor is a passive wireless temperature sensor. The SAW temperature sensor is installed at the position of a contact of the bus. The collector is used for transmitting radio frequency signals to the SAW temperature sensor to serve as drive signals of the SAW temperature sensor. By means of the collector and the SAW temperature sensor, the operating temperature of the bus in the gas insulating switch can be monitored. The system fully utilizes the characteristic of the acoustic surface wave technology, and achieves online monitoring of the operating temperature of the insulating switch in a GIS on the premise of ensuring the insulating performance in the GIS. The invention discloses the monitoring method.

The invention relates to a boiler with a thermal power flexibility regulating function and a regulating method thereof, in particular to the field of opposed firing boilers. The boiler is characterized in that upper burners are burners located on the first layer and the second layer from the top of the boiler; in the upper burners, the front wall and the back wall which are located on the same layer are both provided with the burners, and the burners located on the uppermost layer are set to be peak regulating burners; lower burners are burners located on the first layer from the bottom of the boiler; in the lower burners, any burners on the front wall and/or the back wall are peak regulating burners; the peak regulating burners are internal burning type burners, coal powder can be ignited in the peak regulating burners, and stable burning can be achieved; and the other burners are ordinary burners which are internal burning type burners or external burning type burners. The boiler with the thermal power flexibility regulating function has the beneficial effects that the thermal power operation flexibility and the fuel flexibility of the boiler can be improved, the deep peak regulating capacity of the boiler is remarkably improved, the rapid climbing capacity is achieved, and the boiler can be rapidly started or stopped.

The invention relates to a W-type combustion boiler with a thermal power flexibility adjusting function and an adjusting method of the boiler. The boiler is characterized in that combustors can be divided into front arch combustors and rear arch combustors according to installation positions and types; the front arch combustors comprise front arch common combustors and front arch peak regulation combustors, and the rear arch combustors comprise rear arch common combustors and rear arch peak regulation combustors; one or two front arch peak regulation combustors are arranged in the front arch combustors every two or three front arch common combustors; one or two rear arch peak regulation combustors are arranged in the rear arch combustors every two or three one or two rear arch common combustors; the rear arch peak regulation combustors correspond to the front arch common combustors, and the rear arch common combustors correspond to the front arch peak regulation combustors. The combustion boiler has the advantages that thermal power operation flexibility and fuel flexibility of the boiler can be improved, the deep peak regulation capacity of the boiler is obviously improved, the quick gradeability is achieved, and the boiler can be quickly started and stopped.

The invention specifically relates to a slag cleaning device for a flame cutting machine, comprising a slag blowing gun head connected to a cutting torch head guide rail of a flame cutting machine through a fixed bracket, the slag blowing torch head can move synchronously with the cutting torch head, The purge surface of the slag blowing torch head is perpendicular to the cutting surface of the cutting torch head, and the slag blowing torch head is supplied by the air inlet pipe passing through the torch head bracket to blow the slag away from the surface of the cutting material, including The slag collection device can collect the slag blown away from the cutting surface. In the slag cleaning device of the flame cutting machine of the present invention, the slag blowing gun head is connected with the cutting torch head guide rail of the flame cutting machine through a fixed bracket, thereby realizing the synchronous movement of the slag blowing torch head and the cutting torch head; The slag blowing gun head is designed with a separate moving mechanism, which simplifies the structure and ensures the accurate position of the blowing slag. A slag collection device specially designed to collect slag avoids slag splashing and burns the operator, which is safer.

The invention relates to a third-party logistics service intervention architecture based on an SaaS platform, and the architecture comprises a service front-end layer which is used for the webpage front-end display of the service architecture, displaying software in a product form, and enabling the software to be shared to a plurality of users through the Internet; a third-party service layer which is based on the SaaS platform, faces the service demands of small and medium-sized enterprises, cooperates with an enterprise marketing strategy, meets the promotion demands of enterprise commodities, and comprises a commodity personalized recommendation system, an advertisement putting system, a precise distribution service system, a vehicle transportation service system and an emergency logistics service management system; an application service layer, mainly comprising two aspects: a service logic layer and a service data layer; a business data layer used for storing and processing business data and providing basic service requests for an input and output module of the business logic layer; and an application scheduling layer, wherein the application scheduling layer refers to scheduling by the application program according to the application logic of the application program. A distributed dispatch server with high hardware reliability is adopted, and login jump and an LVS technology are combined.

The low cost automatic sprinkler assistant is an apparatus to help the regular sprinkler timer to become a low cost, fully automatic and zero maintenance sprinkler control system. The low cost automatic sprinkler assistant combines with the regular sprinkler timer will automatically adjust the watering time in order to keep the moisture of the irrigated land virtually unchanged within an acceptable tolerance. The low cost automatic sprinkler assistant is connected in series and between the regular sprinkler timer and the valves. If it rains, when the Relative Humidity is above 70%, the low cost automatic sprinkler assistant stops the sprinkler valves. The low cost automatic sprinkler assistant is also serves as a Relative Humidity Gauge with the tolerance of +and −5%. A general method of calculation how much water is needed to irrigate to keep the grass or land at optimum condition is also provided.

The invention discloses a blank door with an outward-opening angle larger than 150 degrees. The blank door comprises an outer frame (1), an inner frame (5) and a positioning assembly. The positioning assembly comprises an outer frame positioning part (91), an inner frame positioning part (92) and a positioning shaft (93). The outer frame (1) is fixed on a surrounding wall body connecting part I (2). The upper and lower sides of the outer frame (1) are fixed to the outer frame positioning part (91), and the matched position of the inner frame (5) and the outer frame (1) is fixed to the inner frame positioning part (92). The outer frame positioning part (91) and the inner frame positioning part (92) are provided with positioning holes, the inner frame (5) is fixed in the outer frame (1) through the positioning holes and the positioning shaft (93), and the front side of the inner frame (5) is fixed to a door leaf (8). The outward-opening angle of the blank door can be larger than 150 degrees, is flexible, free of sound, reliable in quality, free of maintenance and potential safety hazard and is not provided with matched parts on the appearance, the benefit is improved through batch production, the comprehensive cost is saved, and high-quality productization decoration is achieved.

The invention discloses a heat insulation coating for external walls and a production method thereof, belonging to the field of chemical building materials. The heat insulation coating for external walls is prepared from the following raw materials in parts by weight: 200-250 parts of water, 180-220 parts of titanium dioxide, 160-200 parts of aluminum silicate, 100-150 parts of bentonite, 360-400 parts of silicon-acrylate emulsion, 30-50 parts of thermal insulation material, 6-7 parts of a dispersing agent, 3-5 parts of a coalescing agent, 7-8 parts of a defoaming agent, 2-4 parts of a levelling agent, 3-5 parts of mildew preventive, 1-3 parts of a thickening agent and a proper amount of a PH regulator. The production method of the coating comprises the following steps: stirring and dispersing the raw materials in ratio; grinding and filtering; thickening; and performing PH treatment to obtain the target product. The produced coating has heat-insulation, waterproof, anti-corrosion, high-adhesion, environment-friendly, non-toxic, antibacterial and self-cleaning properties and the like.

The invention discloses a zero-emission tertiary oil gas recovery system and method for a gas station. The zero-emission tertiary oil gas recovery system comprises an oiling machine, wherein the oiling machine communicates with a gasoline tank; the oiling machine is equipped with an intelligent controller; an oiling pump is arranged in the oiling machine; the oiling pump communicates with an oiling flow meter; the oiling flow meter communicates with an oil gas separating valve; the oil gas separating valve communicates with an oiling gun; the oil gas separating valve further communicates witha gas extracting vacuum pump; the gas extracting vacuum pump communicates with a gas extracting flow meter; the gas extracting flow meter and the oiling pump communicate with the gasoline tank; the oiling pump, the oiling flow meter, the gas extracting vacuum pump and the gas extracting flow meter are electrically connected with the intelligent controller; the gasoline tank is equipped with a pressure transmitter; and the pressure transmitter is electrically connected with the intelligent controller. According to the scheme adopted by the invention, tertiary oil gas automatic recovery in an automobile oiling process of the gas station can be realized, and zero emission, zero loss and zero maintenance of gasoline oil gas in the oiling process of the gas station also can be realized.