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975results about How to "Achieve expansion" patented technology

Method, devices and system for transmitting and processing optical-fiber network

The invention relates to a method, devices and a system for transmitting and processing an optical-fiber network. The method comprises the following steps: receiving a type identifying message sent bydown equipment; analyzing and obtaining type identifying codes from the identifying message; identifying a data transmission type supported by the down equipment; and carrying out data transmission according to the data transmission type. One device of the invention comprises an analyzing and obtaining module for executing the method, a type identifying module and an interactive processing module, while the other device comprises a type reporting module used for setting and sending the type identifying codes in the identifying message so as to indicate to carry out the data transmission aftertype identification. The system comprises an optical link terminal and at least two optical-fiber network units which are connected with the optical link terminal through optical fibers, wherein theoptical link terminal can be the first device, and the optical-fiber network units can be the second device. The invention can realize the upgrading or the expansion of the network and protect the investment of the prior network equipment, reduces the reconstruction cost and is easy for popularization and application.
Owner:HUAWEI TECH CO LTD

360-degree three-dimensional display device and method based on splicing of multiple high-speed projectors

ActiveCN104298065AIncrease horizontal spaceIncrease vertical spaceProjectorsStereoscopic photographyImage resolutionDepth of field
The invention discloses a 360-degree three-dimensional display device based on splicing of multiple high-speed projectors. The 360-degree three-dimensional display device comprises an orientation diffuser screen set, a rotating device set, a rotating detection module, a projection splicing integration module, image storage modules and the N high-speed projectors. An algorithm of splicing of the multiple high-speed projectors is used for calculation to obtain a two-dimensional frame image sequence projected by each high-speed projector in real time, and the two-dimensional frame image sequences are sent to all the image storage modules. Under modulation of the rotating detection module, all the high-speed projectors are controlled to be matched with rotation of one set or more sets of orientation diffuser screens, splicing and synthesizing imaging of projection areas of all the high-speed projectors are achieved, and the space resolution ratio of three-dimensional display is improved in a multiplied mode. The algorithm based on splicing of the high-speed projectors is matched with the orientation diffuser screens for imaging, the three-dimensional imaging space is enlarged, the transverse dimension, the longitudinal dimension and the field depth dimension of a three-dimensional image are increased, and spatial expansion of three-dimensional display of the large-dimension space is achieved.
Owner:ZHEJIANG UNIV

Micro-grid system and networking method based on phase angle droop control

The invention discloses a micro-grid system based on phase angle droop control. The micro-grid system comprises a scheduling system and micro-grid bodies, wherein each micro-grid body is connected with a public grid through a corresponding grid connection switch, and the scheduling system is used for controlling switching-on or switching-off of the grid connection switches so that the micro-grid system can be switched to be in an island mode or in a grid connection mode. When the micro-grid system operates in the island mode, the grid connection switches are switched off, a VSI phase angle droop controller is adopted for a distributed power supply, and voltage and frequency support is provided for the micro-grid bodies. When the micro-grid system operates in the grid connection mode, the grid connection switches are switched on, a PQ controller is adopted for the distributed power supply to output appointed power, and the public grid is used for providing voltage and frequency support for the micro-grid body where the distributed power supply is located. The invention further discloses a micro-grid networking method based on phase angle droop control. According to the micro-grid system and the micro-grid networking method based on phase angle droop control, the utilization rate of the distributed power supply is maximized and meanwhile rational flow of micro-grid energy is achieved.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Condensation heat recovery central heating system of power plant indirect air cooling machine set

The invention relates to a condensation heat recovery central heating system of a power plant indirect air cooling machine set. The invention is used for recovering surplus heat of exhaust steam of a power plant steam turbine. The system comprises a steam outlet turbine (1), a turbine steam exhaust header pipe (2), a water-cooled condenser (3), a closed cooling circulation water system (4), an indirect air condensation steam system (5), a heat utilization place (6) and a hot water supply pipeline system (7), wherein the exhaust steam of the steam outlet turbine (1) is connected with the water-cooled condenser (3) through the turbine steam exhaust header pipe (2). The system is characterized in that the heating system also comprises an absorption type heat pump machine set (8-2) and a surplus heat water circulation pipeline system (9); the closed cooled circulation water of the water-cooled condenser (3) is divided into two paths, one path is connected with an evaporator of the absorption type heat pump machine set (8-2) through the surplus heat water circulation pipeline system (9), and the other path is connected with the indirect air condensation steam system (5); and a hot water supply outlet of the absorption type heat pump machine set (8-2) is connected with the heat utilization place (6) through the hot water supply pipeline system (7). The heating system can efficiently recover and utilize the low-grade condensation heat of exhaust steam of an indirect air cooling power plant.
Owner:SHUANGLIANG ECO ENERGY SYST CO LTD

Multi-joint chain link-type robot based on modularization

InactiveCN102616295AAchieve arbitrarinessAchieve expansionVehiclesTerrainModular composition
The invention discloses a multi-joint chain link-type robot capable of implementing modular combination. The robot is in a modularized open chain structure; and each module has twelve degrees of freedom, each of which is finished through the drive of a steering engine or a direct current motor. Each sport leg of the robot is composed of four crank arm joints and a wheel leg and has five active degrees of freedom; two symmetrically arranged sport legs form a pair of joints, and two joints are connected via a chain link-type waist joint; and two active degrees of freedom are formed at the waist joint so that the waist joint can flexibly rotate in four vertical directions. Through the modular combination, the robot can implement organic combination of characteristics of wheel-type, leg-type, straight traveling and swinging movements so that the robot has the advantages of strong terrain adaptation ability of a leg-type robot and high maneuvering speed of a wheel-type robot. Meanwhile, through the design of the width of the waist, the step length and the motion of the robot can meet a condition of noninterference when the robot moves forwards or backwards. Through the coordination among several pairs of sport legs, the robot can finish dozens of movement gaits and can span barriers at a certain height.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Foldable tetrahedral structure

The invention relates to a foldable tetrahedral structure with a single degree of freedom and a large folding-unfolding ratio, and discloses a foldable tetrahedral structure. The foldable tetrahedral structure comprises four folding units, six bar units and a symmetry axis, wherein the connection positions on the four folding units are connected with the connection positions on the six bar units through rotating pairs or spherical pairs, and a closed polyhedral structure is formed; and besides, the units and the kinematic pairs meet a series of symmetrical relationships and constraint conditions with respect to the symmetry axis, and therefore an octahedral structure capable of being folded into the tetrahedral structure is established. The foldable tetrahedral structure can achieve a folded state and an unfolded state stably, when being folded, the structure is small in size and convenient to launch or transport, and when being unfolded, a large working space is achieved. The whole foldable tetrahedral structure only has one degree of freedom and has the advantages that production and processing are easy, movement control is convenient, and reliability is high. The foldable tetrahedral structure has great significance and broad application prospects in numerous fields such as aerospace and civil engineering.
Owner:TIANJIN UNIV

Folding mechanism for changing wingspan of wings

The invention discloses a folding mechanism for changing wingspan of wings. The folding mechanism is a rigid foldable structure which is used for changing the single degree of freedom and the large folding-expanding ratio of the wingspan of the wings based on a Sarrus mechanism. The single degree of freedom guarantees that the entire wings only need a driving motor, complexity caused by coordination and cooperation of a plurality of motors is avoided, besides, the self weight of the folded wings is greatly reduced, and the effective load of an aircraft is increased; the large folding-expanding ratio guarantees that the respects including the speed, the mobility, the loading capacity, the range and the like of the aircraft can be adjusted according to task requirements. Through the adoption of the mechanism, the wingspan of the wings is changed, the diversified functions of the aircraft can be realized, the performance indexes of the aircraft can be regulated, and enormous convenience is brought for the storage and the transportation of the aircraft; the entire mechanism only has one degree of freedom, so that the motion control is simple; the folding mechanism has the advantages of being simple to produce and process, convenient in motion control, high in reliability, high in precision and the like, and has important significance and broad application prospects in the field of variable geometry aircrafts.
Owner:TIANJIN UNIV

Inclined rotating wing aircraft with telescopic wing membranes

The invention relates to an inclined rotating wing aircraft with telescopic wing membranes. The inclined rotating wing aircraft comprises an aircraft body, a center shaft, a main transmission mechanism, first to third power units, an outer side rod, a support rod, a main wing membrane, a flight controller, and first to third undercarriages. The inclined rotating wing aircraft disclosed by the invention is improved on the basis of the structure of the traditional four-wing aircraft, and an inclined rotating structure of an inclined rotating four-rotary wing aircraft and a wing membrane structure of a flapping wing aircraft are added. According to the inclined rotating wing aircraft, the structural state of the inclined rotating wing aircraft includes a ground sliding state, a four-rotary wing flying state and a high-altitude cruising state; when the inclined rotating wing aircraft is in a ground movement state, the undercarriages contact with the ground, the main wing membrane is open, and the forward movement, backward movement, left rotation movement, right rotation movement, climbing movement and downgrade movement of the aircraft are realized by regulating the speed of four rotary wings; the movement state of the aircraft on the ground is realized under the action of the undercarriages, and the movement state is impossible to realize by the inclined rotating four-rotary wing aircraft and the flapping wing aircraft; and the climbing movement and the downgrade movement can be realized without changing the state of the aircraft, so that the energy consumption is reduced, and the complexity of a control program is prevented.
Owner:CIVIL AVIATION UNIV OF CHINA

Automobile leather delivering and drying all-in-one (AIO) machine

The invention provides an automobile leather delivering and drying AIO machine, and belongs to the technical field of machinery. At present, automobile leather should be delivered to the baking oven of a conventional leather drying machine by people, the production cannot be carried out continuously, the production efficiency is low, and the provided AIO machine solves the problems mentioned above. The AIO machine comprises a delivering device and a drying device; the delivering device comprises a work bench and a plurality of positioning frames, an annular guide rail is arranged on the work bench, multiple clamping mechanisms for clamping the positioning frames are arranged under the annular guide rail, a power mechanism, which can drive the clamping mechanisms to move back and forth, is arranged in the annular guide rail, each positioning frame is provided with a positioning structure, which can be used to extend the automobile leather and position the automobile leather on the positioning frame; the drying device comprises a baking oven fixed on the work bench, the upper part of the baking oven is provided with a plurality of openings, from which the positioning frames can enter the baking oven, and the upper part of the baking oven is also provided with an closing structure, which can close the openings. The AIO machine has the advantages of high production efficiency, and low labor strength.
Owner:浙江富邦汽车内饰科技有限公司

Combined heat and power system for directly recovering exhaust afterheat of power station steam turbine by absorption heat pump

The invention relates to a combined heat and power system for directly recovering exhaust afterheat of a power station steam turbine by an absorption heat pump, which is used for recovering the exhaust afterheat of the power station steam turbine. The combined heat and power system comprises a power plant boiler (1), the steam turbine (2), an electric generator (3), a steam turbine exhaust pipe (4), a condenser (5), a cooling tower or an air cooling system (6), a water circulating pump (7), an exhaust condensate pump (8), a steam extraction and water condensation boiler pipe (9), the absorption heat pump (10), a hot water return pipe (11), a hot water outlet pipe (12) and a steam turbine extraction pipe (13), wherein the absorption heat pump (10) comprises a generator (14), a condenser (15), an absorber (16) and an evaporator (17). The combined heat and power system is characterized in that: low-pressure steam pipes discharged by the steam turbine (2) are divided into two paths, wherein one path is connected with the condenser (5) through the steam turbine exhaust pipe (4), while the other path is connected with the evaporator (17) of the absorption heat pump (10) through a steam turbine exhaust evaporator tube (19). The combined heat and power system can more effectively recycle low-grade exhaust condensation heat of a power plant, and reduces the temperature loss, improves the supply water temperature of hot water, and reduces the system investment and operating cost on the premise of not changing the exhaust back pressure.
Owner:SHUANGLIANG ECO ENERGY SYST CO LTD
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