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572 results about "Technology development" patented technology

Method for separating and preparing hydrogen by decomposing water in fuel cell through photocatalysis

The invention provides a method for separating and preparing hydrogen by decomposing water in a fuel cell through photocatalysis according to the inverse principle of the hydrogen fuel cell, aiming to avoiding the current separation problem of hydrogen and oxygen prepared by decomposing water through solar energy photocatalysis. The method adopts the inverse principle of the hydrogen fuel cell and uses photocatalyst as raw material for a photoanode, and platinum, nickel or carbon electrode as a cathode; an ion film is used between the two electrodes to transfer protons or hydroxyl ions, circuit is formed by connecting the photoanode and the cathode with a lead; sunlight or simulated sunlight is used as a light source, the light directly shines down upon the photoanode; and hydrogen is generated on the cathode and an oxidation reaction is performed on the anode so as to realize the aim of separating and preparing hydrogen by decomposing water through photocatalysis. In the method of the invention, no sacrifice agent or inhibitor is needed to add for adjusting the pH value of the electrolyte solution, an external power source can be added as additional bias so as to directly separate and prepare hydrogen by decomposing water through photocatalysis, and the separation problem of hydrogen and oxygen in practical technology development for decomposing water through solar energy photocatalysis is successfully solved.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Navigation satellite low-orbit monitoring constellation optimization design method

The invention provides a navigation satellite low-orbit monitoring constellation optimization design method. An existing technology foundation and a future technology development trend are fully considered, navigation satellite low-orbit monitoring constellation design requirements and constraint conditions are analyzed, a Walker-[delta] constellation and a sun synchronous regression orbit are selected, and an elevation criterion containing a monitoring station cover factor, a performance factor and a constellation orbit parameter is built at the same time, so a navigation satellite low-orbit monitoring constellation going through the optimization design has good monitoring performance. The optimization design of the navigation satellite low-orbit monitoring constellation can be effectively achieved according to the navigation satellite low-orbit monitoring constellation optimization design method brought forward in the invention, the technical scheme is scientific and optimal, and the navigation satellite low-orbit monitoring constellation optimization design method has high implementability; and the designed constellation can use the less total number of satellites to achieve a large monitoring station cover factor and a large performance factor.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Main bearing reduced scale performance test bench of large wind turbine

The present invention discloses a main bearing reduced scale performance test bench of a large wind turbine. The main bearing reduced scale performance test bench of the large wind turbine comprises a fixed platform, a driving device, a rotor device, a loading device, a hydraulic system, a control device and a test system. The driving device, the rotor device and the loading device are fixedly connected with the fixed platform in turn, and the test system is installed between the outer ring transitional disk and the inner ring transitional disk of the loading device. The main bearing reduced scale performance test bench of a large wind turbine is able to satisfy integrated performance tests with different types and sizes; and the simulation of the actual loaded condition of the main bearing may be performed through combined loading of oil cylinders at different positions, and the synchronous measurement of performance parameters such as the temperature, the vibration, the rotating speed, the friction torque, the static tensile strain of the bearing, and the like are realized. Therefore the test cost of the wind power main bearing is greatly reduced, and the main bearing reduced scale performance test bench of a large wind turbine has an important significance for China wind power bearing technology development.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Waterproof anti-misplug socket and plug for computer

The invention discloses a waterproof anti-misplug socket and plug for a computer, and relates to the technical field of computer software and hardware technology development. The waterproof anti-misplug socket and plug comprises a socket, wherein the inner bottom wall of the socket is fixedly connected with two symmetrical first springs, a sliding block is fixedly connected to the top of the firstspring, a dielectric plate is fixedly connected to the middle of the sliding block, two symmetrical positive electrode plates are fixedly connected to the inner wall of the socket and close to the inner side of the first spring, a negative electrode plate is fixedly connected to the inner wall of the socket, and a resistor electrically connected with the negative electrode plate is fixedly connected to the inner wall of the socket. According to the invention, by matching the clamping groove and the deformation sleeve, when the socket and the plug are plugged, the deformation sleeve deforms under the extrusion effect of the electrorheological fluid and fits the shape of the clamping groove, and the electrorheological fluid becomes solid after being powered on, so that the socket and the plug are relatively fixed, the effect of preventing the plug from being pulled out by mistake is achieved, sudden power failure of a computer is effectively prevented, and normal work of the computer isguaranteed.
Owner:绍兴市寅川软件开发有限公司

Entrance guard system based on internet of things and entrance guard control method

The invention discloses an entrance guard system based on the internet of things. The system comprises entrance guard electronic locks, electronic lock two-dimensional codes printed on the electronic locks, a mobile device, an internet server and an internet-of-things module. The entrance guard electronic locks are used for controlling opening and closing of a door. The internet-of-things module is used for data interaction of the entrance guard electronic locks and the internet server and controls the entrance guard electronic locks. The internet server is used for saving feature information data of the mobile device corresponding to the entrance guard electronic locks, receiving unlocking requests of the mobile device, authenticating request data and feeding back execution commands to the internet-of-things module. The entrance guard system based on the internet of things and an entrance guard control method are combined with modern technology development and are very valuable, authentication of a traditional entrance guard system is moved from the electronic locks to the internet server, and a lot of manpower and materials can be saved; a user only needs the mobile device to scan the two-dimensional codes printed on the electronic locks and conduct unlocking, no marks are left, and unlocking is convenient and quick.
Owner:张博一

Multi-point accurate positioning and tracing method for wireless sensor network

The invention discloses a multi-nodal accurate positioning and tracking method of a wireless sensor network. Positioning fixed nodes in the wireless sensor network are distributed at the peak of a regular quadrangle; each node in the sensor network is used for data acquisition and transmission; the positioning fixed nodes not only are related to a data route, but also are used for receiving positioning signals transmitted by a positioned node or a tracked node; and the positioning fixed nodes are used for calculating the distance between each fixed node and the positioned node through carrying out energy statistic to the signals, transmitting the distance to the gateway node of the wireless sensor network, and transmitting the distance to a PC machine through the gateway node. After collecting the positioning signals of all the positioning fixed nodes, the PC machine is used for calculating the position of the positioned node or a mobile node by using the multi-nodal positioning method and tracing out the movement track of the mobile tracking node through software. The invention reduces the wireless positioning cost and improves the positioning accuracy and the traceability. The invention plays an active driving role in the accurate positioning of the wireless sensor network and the tracking technology development.
Owner:ZHEJIANG UNIV

Internet of things intelligent zone locating guide system and guide method based on Zigbee and WIFI

The invention provides an internet of things intelligent zone locating guide system and guide method based on Zigbee and WIFI. The system comprises a server terminal, one or more mobile terminals and a plurality of locating reference nodes. Overall management can be conducted through the server terminal, coordinate parameters of exhibition item zones are built through the locating reference nodes, and interaction automatic exhibition of exhibition item information is conducted through the mobile terminals. Locating is conducted through a Zigbee network, information, with application value, relevant to positions is transmitted to the server terminal through a WIFI network, locating and application exhibition of the mobile terminals are organically combined in the mode that hardware is independent and systems are related, an independent modularization operation mode can be adopted, the internet of things intelligent zone locating guide system is suitable for intelligent guide on various occasions and can be efficiently applied to various exhibition places such as exhibition halls and tourist places, an exhibition mode with flexibility is provided, and the system has remarkable positive effects of promoting industry technology development and boosting abundance of public activities.
Owner:GUANGDONG SCI CENT +1

Gelatinized developing device with clustered structure

The invention relates to a structure of a gelatinized developing device, wherein the structure of the gelatinized developing device is used for achieving even-distributed photoresist and photoresist graphs in integrated circuit manufacture photolithography processing. The gelatinized developing device comprises a film magazine station, a process station and a connector station, wherein wafers are delivered between the film magazine station and the process station through an unloading/loading robot, the wafers are delivered between the process station and the connector station through a connector robot, the process station comprises a photoresist coating station and a developing station, the photoresist coating station and the developing station and the film magazine station and the connector station are arranged in a line, processing modules inside stations are in clustered distribution, and cluster origins are the processing robot CR and the processing robot DR and the processing robot CR and the processing robot DR are used for delivering the wafers inside the stations. The structure of the gelatinized developing device is small in occupied area of complete machine equipment, strong in technology development of the processing modules inside the process station and capable of enabling standardized modules to be easy to assemble and detach and enabling collocation and combination of the modules with different functions to be simple. Various production processes can be implemented on the gelatinized developing device.
Owner:SHENYANG KINGSEMI CO LTD

Dynamic screen saver service system and processing method based on mobile terminal

InactiveCN103731554ASolve the problem that requires a large amount of mobile terminal resourcesSufficient dataSubstation equipmentTechnology developmentTerminal operation
The invention provides a dynamic screen saver service system and processing method based on a mobile terminal. The dynamic screen saver function of the mobile terminal is achieved with the help of communication network service, technological development is prevented from being performed on a mobile terminal operating system, the situation that the mobile terminal stores a large number of screen saver pictures for a long time is avoided, and the problems that in the prior art, for achieving the dynamic screen saver function of dynamic screen saver picture switching, the development difficulty is high, the research and development period is long, the research and development input cost is too high, and a lot of mobile terminal resources are occupied are solved. Thus, the dynamic screen saver function of the mobile terminal for dynamic display screen saver picture switching is easy to develop and achieve, good in transportability, small in occupied mobile terminal resource and favorable for technology promotion. In addition, the dynamic screen saver service system and processing method based on the mobile terminal can be used for carrying out various different value added services and have wide business application prospects.
Owner:CHONGQING MIAOYIN TECH

Alternating current charging pile function testing device

InactiveCN105738741AAdjust current in real timeRealize monitoring simulationElectrical testingCommunication interfaceTechnology development
The invention solves the test of control guiding functions between an alternating current charging pile and an electric car charging control device specified in the GB/T 18487.1-2015 and the electric car charging load simulation, and in particular relates to an alternating current charging pile function testing device, which comprises a power supply plug, a cable and a controller. The controller comprises a car charging control device, a cable specification setting device, a display and man-machine interaction device, a communication interface and a simulated load. The controller is provided with a plurality of detection points. The power supply plug is connected with the controller through the cable. The car charging control device includes four output ports which are connected with the cable specification setting device, the display and man-machine interaction device, the communication interface and the simulated load. The alternating current charging pile function testing device provides a tool for effective detection and estimation of the correction and reliability of the alternating current charging pile control guiding and charging functions for special testing mechanisms or alternating current/direct current charging pile production enterprises, and will greatly promotes the technology development and technology progress of the industry.
Owner:常胜 +2
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