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54results about How to "Suitable for development needs" patented technology

Optical system of satellite-borne differential absorption spectrometer

An optical system of satellite-borne differential absorption spectrometer comprises a relay optical system and an Offner imaging spectrometer system. The relay optical system is composed of a relay reflector, relay lenses and a color separation filter. The Offner imaging spectrometer system is composed of an incident slit, a convex grating, and a concave reflector. The relay optical system uses the color separation filter to split a detection waveband to form four channels, which are focused by four groups of relay lenses to the incident slit of the spectrometer. Light at each waveband entersthe spectrometer from the incident slit of the spectrometer, is split by the convex grating, and has the light path turned and focused on a detector. The invention utilizes a relay reflector to turn the light path, and utilizes the color separation filter to split the detection waveband into four channels, to therefore improve the detection resolution of the system, ensure measurement accuracy and realize compact volume of the whole optical system. The Offner imaging spectrometer has excellent imaging spectrum performance and reduced distortion. The invention facilitates miniaturization and weight reduction of the whole system, and is suitable for space technology.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Control method and device for energy storage system

The invention discloses a control method and device for an energy storage system. The method comprises the steps of calculating an output voltage reference value and a voltage phase angle of the energy storage system according to a VSG (Virtual Synchronous generator); carrying out coordinate conversion on the output voltage reference value, thereby obtaining a voltage component under a two-phase synchronous rotating coordinate system; taking the voltage component as an input voltage for voltage current double loop control, and carrying out the voltage current double loop control to obtain a three-phase voltage reference value; equally dividing the three-phase voltage reference value according to the number of power conversion units of each power conversion link, and superposing each part of the equally divided three-phase voltage reference value and the voltage component obtained through battery balance control, thereby obtaining a voltage reference signal of each power conversion unit. The energy storage system provided by the invention works under a voltage source state both in a grid-connected mode and a grid-disconnected mode, so a control policy does not need to be switched and the voltage and current overshoot problem is avoided. Through utilization of automatic voltage adjustment and frequency adjustment capabilities of the VSG, the energy storage system has a plug and play function and a voltage frequency automatic regulation function.
Owner:GUANGZHOU ZHIGUANG ELECTRIC CO LTD +1

Bistable state spherical surface composite cantilever piezoelectric power generation device

The invention discloses a bistable state spherical surface composite cantilever piezoelectric power generation device. The device comprises a beam frame and a spherical shell. A circular opening is formed in the bottom of the shell. The beam frame and the shell are fixed to a base. The vibration of the beam frame can make piezoelectric cantilevers to deform, and when the piezoelectric cantilevers deform, electric energy can be produced due to the piezoelectric effect. The number of the piezoelectric cantilevers is twenty-five, and the piezoelectric cantilevers are evenly and annularly distributed among layers. The inherent non-linear characteristic of a bistable state piezoelectric power generation system is utilized, piezoelectric cantilever oscillators are made to do stochastic resonance through the combined action of the environment vibration excitation and magnetic force, the low resonant frequency and larger amplitude are achieved, and therefore the produced electric quantity is relatively large. According to the bistable state spherical surface composite cantilever piezoelectric power generation device, twenty-five piezoelectric oscillator structures are arranged, the lengths of the adjacent cantilevers in the same plane are different, and a wide resonance frequency domain can be formed, and the electric energy production can be obviously increased through the piezoelectric oscillator structures.
Owner:BEIJING UNIV OF TECH

Preparation method of coated thermal battery composite electrode sheet

The invention discloses a preparation method of a coated thermal battery composite electrode sheet. The composite electrode sheet is composed of a heating layer, a positive electrode layer and a separator layer. For the preparation method, firstly, a layer of fiber mesh is laid on a conductive substrate, a positive electrode layer is then coated, after drying, an asbestos mesh is placed on a surface of the positive electrode layer; secondly, the separator layer is then coated on the positive electrode layer on which the asbestos mesh is placed, after the separator layer is dried, the heating layer is coated on the other side of the conductive substrate to obtain a composite sheet; and thirdly, high temperature resistant waterproof conductive adhesive is coated on both sides of the composite sheet, after drying, the composite positive electrode layer is obtained. The composite electrode sheet is advantaged in that thickness of the composite electrode sheet can be adjusted according to height of a scraper in the preparation process, so the thickness of the composite electrode sheet is precisely controlled, the composite electrode sheet is combined with a thermal battery negative electrode LiB sheet with controllable thickness to form an ultra-thin thermal battery cell, the obtained composite electrode sheet has a function of preventing moisture absorption and preventing a diaphragm from being melted and overflowing, and the preparation method has advantages of high chip rate and simple process and meets requirements of engineering use.
Owner:GUIZHOU MEILING POWER SUPPLY CO LTD

C-EPS control strategy hardware-in-loop simulation development platform based on active fault tolerance

The invention discloses a C-EPS control strategy hardware-in-loop simulation development platform based on active fault tolerance. The C-EPS control strategy hardware-in-loop simulation development platform comprises a hardware device, a dSPACE real-time simulation system and an upper computer. A servo motor in the hardware device is used as a steering resistance loading device, and a steering resistance moment model is established in the upper computer in combination with an automobile two-degree-of-freedom model and front suspension parameters. A dSPACE real-time simulation system is adoptedto acquire a steering wheel rotating angle signal of a rotating angle sensor in a C-EPS system, a steering wheel torque signal of a torque sensor, a current signal of a power-assisted motor, and a rotating speed and a rotating angle signal of a servo motor driver, and transmits operating parameters of the C-EPS system to the upper computer; the steering total resistance torque is obtained throughthe steering resistance torque model, the operation simulation working condition of the C-EPS system is simulated in real time, a C-EPS system control strategy is established in the upper computer, and a hardware-in-loop simulation test is achieved. According to the method, the simulation precision and the development efficiency of the C-EPS system control strategy can be effectively improved, and the development cost is reduced.
Owner:HANGZHOU SHIBAO AUTO STEERING GEAR +1

Hollow spindle with spiral guide grooves

ActiveCN102787405BEnsure regular flowGood for changing the relative positionContinuous wound-up machinesOpen-end spinning machinesEngineeringYarn strength
The invention discloses a hollow spindle with spiral guide grooves and belongs to the technical field of a hollow spindle of a twisting device. The hollow spindle is divided into an upper part, a middle part and a lower part, wherein the outer surface extending from a fiber inlet at the upper part to the bottom end at the middle part is provided with three to twelve guide grooves, the guide grooves are in a spiral shape, the groove depth of the guide grooves is 0 to 1.2mm, the groove width of the guide grooves is 0.05 to 12mm, the rotating spiral angle of the center line of the guide grooves is 30 to 120 degrees, the fiber inlet is in a structure subjected to chamfering smoothening treatment, the height of the upper part of the hollow spindle is 5 to 8mm, the hemipyramid angle of the upper part is 5 degrees to 15 degrees, the diameter of a yarn guide passage is 0.8 to 1.4mm, the height of the middle part is 8 to 12mm, the height of the lower part is 5 to 9mm, and the inner diameter of an outlet of the hollow spindle is 9 to 14mm. The hollow spindle has the advantages that the yarning forming is compact, the yarn levelness uniformity is good, the yarn strength is improved, and the hollow spindle adapts to beyber yarns and colored spun yarns of air jet vortex spinning.
Owner:SHAOXING UNIVERSITY

Unmanned formula car multi-sensor fusion sensing decision and tracking control method

The invention discloses an unmanned formula car multi-sensor fusion sensing decision and tracking control method. The unmanned formula car multi-sensor fusion sensing decision and tracking control method comprises the steps that: an industrial personal computer respectively receives point cloud of a conical barrel in front of a racing car collected by a laser radar, image information with the color and the position of the conical barrel collected by a monocular camera, and acceleration and course angle of the racing car collected by a GPS and an IMU, and fuses the data into a racing track map;and a reference track is planned according to the racing track map, the reference track is sent to a track tracking controller, the track tracking controller outputs a corresponding control command to an execution control system according to the reference track, the execution control system outputs a corresponding command to an execution mechanism, and therefore track tracking of the racing car is achieved. The unmanned formula car multi-sensor fusion sensing decision and tracking control method can be effectively applied to cone bucket identification and trajectory tracking of the event, andcan be expanded and applied to other similar scenes, so that the development efficiency of unmanned driving of the automobile is improved.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Laser remelting method for plasma cathode electrolytic deposition ceramic coating surface

The invention relates to a laser remelting method for a plasma cathode electrolytic deposition ceramic coating surface. The laser remelting method comprises the following steps of firstly, electrolytically depositing the ceramic coating on the surfaces of titanium and titanium alloy, aluminum and aluminum alloy, magnesium and magnesium alloy, titanium aluminum alloy, stainless steel and the like by using the plasma cathode, and then carrying out laser remelting modification strengthening method. In the laser remelting process, under the action of high-energy radiation of laser beam, the localarea of ceramic coating within the coverage area of the light spot will form a molten pool and melting is carried out, and the melts will undergo phase change under high-temperature condition to generate second-phase substances with higher hardness and the like; meanwhile, the molten pool can be quenched depending on the matrix material with lower temperature, the microstructure of the coating material can be refined, and the cooled ceramic coating structure can become uniform and compact. The factors are helpful to improve and enhance the structural compactness, surface hardness, binding force, high temperature oxidation resistance, wear resistance and corrosion resistance of the plasma cathode electrolytic deposition ceramic coating.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Heat storage and heat supply system heating heat conduction oil through off-peak electricity and coupling heat pipe heat exchanger

The invention discloses a heat storage and heat supply system heating heat conduction oil through off-peak electricity and coupling a heat pipe heat exchanger. The system comprises a heat conduction oil heating and heat storage system, a heat supply system and a central processing unit; and the central processing unit is connected with the heat supply system and the heat conduction oil heating andheat storage system, the heat conduction oil heating and heat storage system comprises a heat storage tank, the heat pipe heat exchanger is arranged in the heat storage tank, the heat pipe heat exchanger is arranged in heat conduction oil, connected with the heat supply system and used for carrying out heat exchange on a heat storage medium in the heat storage tank to achieve stable control and output of an outlet working condition, and the central processing unit is used for realizing automatic control. According to the system, through effective combination with an existing energy configuration problem in China, a heat storage type system effectively utilizing the off-peak electricity for heating, heat storage and peak heat releasing is technically analyzed, and peak shifting and valleyfilling on electric power is completed.
Owner:XI AN JIAOTONG UNIV

Multilayer organic substrate and manufacturing method thereof

The invention belongs to the technical field of semiconductor testing, and provides a multilayer organic substrate and a manufacturing method. The method comprises the steps of manufacturing a probe implantation layer with a first precision circuit on a bearing plate through an addition method/semi-addition method; manufacturing a functional combination layer with a second precision circuit on theprobe implantation layer by an addition method/semi-addition method, wherein the circuit precision requirement of the second precision circuit is lower than that of the first precision circuit; manufacturing a core combination layer capable of quickly adding layers by combining a dielectric layer and a conductor layer which are manufactured in parallel, and covering the core combination layer onthe function combination layer; and manufacturing a fan-out circuit combination layer and a BGA PAD layer for transferring load board on the core combination layer by the addition method/semi-additionmethod so as to form the multilayer organic substrate. The manufacturing method of the multilayer organic substrate is low in cost and short in manufacturing period, so that the C4 Pad minimum spacing of the multilayer organic substrate is reduced, the wiring density of the probe implantation layer is improved, and meanwhile, the C4 Pad surface can obtain super-flatness.
Owner:上海泽丰半导体科技有限公司

Method for obtaining making profits for user in screen-locking system

The invention discloses a method for obtaining making profits for a user in a screen-locking system. When a user enters a screen-locking system, a community center is clicked for entrance and a virtual company is established at the community center; the user establishing the community center makes an announcement for employing employees at a notice board of the community center; other users join in the virtual company and the user belonging to the same company complete a task together, a task completing process and result are recorded into a server, and the server calculates rewards according to the completion state of the task and adds the rewards into a user center; the user establishing the community center, together with the employees, carries out task competition with other virtual companies, a competition process and a competition result are recorded into the server, and the server provides rewards and shared revenues based on the task completion state; and the user establishing the community center allocates the obtained rewards and shared revenues to the employees. Therefore, ideas of a mobile game and social communication are fused into a screen-locking profit-making system, so that the development requirement of the modern APP profit-making mode can be met.
Owner:SUZHOU TIANPING ADVANCED DIGITAL TECH

A control method and device for an energy storage system

ActiveCN107887928BWith automatic regulation functionNo overshoot problemSingle network parallel feeding arrangementsVirtual synchronous generatorOvervoltage
The invention discloses a control method and device for an energy storage system. The method comprises the steps of calculating an output voltage reference value and a voltage phase angle of the energy storage system according to a VSG (Virtual Synchronous generator); carrying out coordinate conversion on the output voltage reference value, thereby obtaining a voltage component under a two-phase synchronous rotating coordinate system; taking the voltage component as an input voltage for voltage current double loop control, and carrying out the voltage current double loop control to obtain a three-phase voltage reference value; equally dividing the three-phase voltage reference value according to the number of power conversion units of each power conversion link, and superposing each part of the equally divided three-phase voltage reference value and the voltage component obtained through battery balance control, thereby obtaining a voltage reference signal of each power conversion unit. The energy storage system provided by the invention works under a voltage source state both in a grid-connected mode and a grid-disconnected mode, so a control policy does not need to be switched and the voltage and current overshoot problem is avoided. Through utilization of automatic voltage adjustment and frequency adjustment capabilities of the VSG, the energy storage system has a plug and play function and a voltage frequency automatic regulation function.
Owner:GUANGZHOU ZHIGUANG ELECTRIC CO LTD +1

Crude oil gas-liquid separation process integration method and equipment

The invention discloses a crude oil gas-liquid separation process integration method and its equipment, which are designed to realize integrated functions such as buffering of incoming oil from well groups, oil-gas separation and associated gas liquid separation, and mainly include the connection of a closed buffer tank Furnace incoming oil pipeline, external pump pipeline, hot water pipeline, return water pipeline, sewage pipeline, sand discharge gate valve, sewage gate valve, three-way valve and safety valve, air cooler and associated gas separator connected to the three-way valve, Connect the gas discharge pipeline of the associated gas separator, the gas output pipeline and the heating furnace gas pipeline through the stop valve. The present invention has integrated processing functions such as buffering, oil and gas separation and associated gas liquid separation for incoming oil from the well group, and is respectively suitable for the normal closed gathering and transportation of crude oil, and the production needs of large and small associated gas volumes. The invention has the advantages of simple technological process, short construction period, flexible use and operation, and less occupied area, which is very suitable for the development and construction needs of oilfields.
Owner:PETROCHINA CO LTD

A kind of multi-layer organic substrate and manufacturing method

The technical field of the present invention is the field of semiconductor testing, providing a multi-layer organic substrate and a manufacturing method, the method comprising: manufacturing a probe implant with a first precision circuit on the carrier board by an additive method / semi-additive method layer; on the probe implantation layer, a functional combination layer with a second precision circuit is produced by an additive method / semi-additive method, wherein the circuit precision requirement of the second precision circuit is lower than that of the first precision circuit; combined with the parallel production The dielectric layer and the conductor layer are used to make a core composite layer that can be rapidly increased, and the core composite layer is covered on the functional composite layer; on the core composite layer, the fan-out circuit composite layer is made by additive method / semi-additive method and used for Transfer the BGA PAD layer of the load board to form a multi-layer organic substrate. The present invention realizes a low-cost, short-production-cycle multilayer organic substrate manufacturing method, thereby reducing the minimum C4 Pad spacing of the multilayer organic substrate and improving the wiring density of the probe implantation layer, while the C4 Pad surface can be ultra-flat Spend.
Owner:SHANGHAI ZENFOCUS SEMI-TECH CO LTD

Optical system of satellite-borne differential absorption spectrometer

An optical system of satellite-borne differential absorption spectrometer comprises a relay optical system and an Offner imaging spectrometer system. The relay optical system is composed of a relay reflector, relay lenses and a color separation filter. The Offner imaging spectrometer system is composed of an incident slit, a convex grating, and a concave reflector. The relay optical system uses the color separation filter to split a detection waveband to form four channels, which are focused by four groups of relay lenses to the incident slit of the spectrometer. Light at each waveband enters the spectrometer from the incident slit of the spectrometer, is split by the convex grating, and has the light path turned and focused on a detector. The invention utilizes a relay reflector to turn the light path, and utilizes the color separation filter to split the detection waveband into four channels, to therefore improve the detection resolution of the system, ensure measurement accuracy and realize compact volume of the whole optical system. The Offner imaging spectrometer has excellent imaging spectrum performance and reduced distortion. The invention facilitates miniaturization and weight reduction of the whole system, and is suitable for space technology.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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