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87results about How to "Achieve mutual transformation" patented technology

Electric automobile brake energy regeneration transmission device with elastic rubber belt energy accumulator

The invention discloses an electric automobile brake energy regeneration transmission device with an elastic rubber belt energy accumulator and aims at providing an electric automobile brake energy regeneration transmission device which is high in energy conversion efficiency, large in energy density, light in weight and simple in structure. The electric automobile brake energy regeneration transmission device comprises the elastic rubber belt energy accumulator and a gear transmission case. The power connecting end of the elastic rubber belt energy accumulator is connected with the power connecting end of the gear transmission case, and two ends of a first shaft of the gear transmission case are respectively connected to the output end of a speed changer and the power input end of a main speed reducer. The electric automobile brake energy regeneration transmission device is used for converting kinetic energy in the electric automobile braking process into elastic potential energy to be stored in the elastic rubber belt energy accumulator, converts the elastic potential energy stored in the elastic rubber belt energy accumulator into electric automobile kinetic energy in the electric automobile starting process, achieves braking energy regeneration of an electric automobile and achieves the purposes of reducing electric quantity consumption of the electric automobile and increasing a driving range of the electric automobile.
Owner:SHANDONG UNIV OF TECH

Vehicle queue length fast detection algorithm based on local feature analysis

The invention relates to a vehicle queue length fast detection algorithm based on local feature analysis, which belongs to vehicle flow detection in intelligent traffic. In a video monitoring area, local features of an image are optimized from the whole image, three columns of pixel values containing a lane image are only selected when the traffic information of the vehicle queue length is detected, and a one-dimensional feature array is formed on the basis of weighted reconstruction for analysis. The imaging principle of a camera is simplified into a pin hole model, thereby realizing conversion between a pixel distance and an actual distance; Gaussian filtering and wavelet transform are used to be combined to reduce noise interference, the wavelet base section is db4, and the number of decomposition levels is 3; a local background subtraction method is used for extracting foreground; and finally, a sliding window with a variable length is used for detecting a queue tail. The algorithm of the invention is used for testing a photographed traffic monitoring video, the result shows that the algorithm accuracy is high, the operation rate is fast, errors in the field of vision is smaller than 5%, time consumed for single frame processing is only 10ms, and actual application requirements can be met.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

System and method for adjusting display interface of mobile phone based on left-hand and right-hand use habits

The invention discloses a system and a method for adjusting a display interface of a mobile phone based on left-hand and right-hand use habits; the system comprises a mobile phone body; an acceleration sensor, a touch display screen, a display module, a central processing unit (CPU), a microcontroller, a switcher, a first driving module and a second driving module are arranged in the mobile phone body; the acceleration sensor is connected with the CPU; the CPU is connected with the microcontroller through the switcher; the microcontroller is connected with the display module respectively through the first and second driving modules; and the display module is connected with the touch display screen. According to the invention, because the acceleration sensor is set in the mobile phone, when a mobile phone user shakes the mobile phone, corresponding trigger signals are generated, the display interface of the mobile phone is switched through the switcher and the microcontroller, and the left-hand and right-hand operation methods of the mobile phone are switched. Compared with the prior art, the left-hand and right-hand use habits are switched, the possibility of switching to a right-hand (left-hand) use function when the left hand (right hand) of the user cannot touch a blind area on the right side (left side) of the display screen is realized, and the problem of the inconvenience in use of left-hand and right-hand functions of the intelligent mobile phone because the screen is quite large is effectively solved.
Owner:SHENZHEN GIONEE COMM EQUIP

Impedance test system and method for three-phase alternating current circuit

The invention discloses an impedance test system and method for a three-phase alternating current circuit. The system comprises a disturbing signal injection module, a signal processing module, a signal amplification module, a signal detection module, a frequency responding measuring module and an impedance calculation module; the method comprises the steps that step one, a disturbing signal is generated; step two, the disturbing signal in a dp coordinate system is converted into an abc three-phase alternating current signal; step three, the disturbing signal is amplified and injected into thethree-phase alternating current circuit; step four, the signal detecting module measures a voltage signal of a power supply and a port responding signal and conducts smoothing adjusting on the signals; step five, the port responding signal is transformed to the dq coordinate system from an abc coordinate system; step six, frequency responding is obtained; step seven, impedance of the three-phasealternating circuit is obtained through calculation. The design is novel and reasonable, three-phase alternating current impedance can be conveniently and accurately tested, important significance isachieved on analyzing of stability of the three-phase alternating current circuit, the practicability is high, and the popularization and application value is high.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method for controlling rotation of liquid drops after collision

InactiveCN110082063AAchieve mutual transformationBreakthrough in the scope of researchHydrodynamic testingMutual transformationEngineering
The invention discloses a method for controlling rotation of liquid drops after collision, and belongs to the technical field of material interface infiltration. According to the method, patterning infiltration modification is performed on the surface of an object, liquid drops are controlled to be collided with a high-viscosity / hydrophobic low-viscosity substrate at a certain speed, and a controllable rotation rebounding behavior can be formed after the liquid drops are collided by controlling the viscosity difference between different regions of the substrate, the symmetry of a substrate pattern and the collision speed of the liquid drops. Through adoption of the method for controlling rotation of liquid drops after collision disclosed by the invention, the translational kinetic energy of the liquid drops can be transformed into rotational kinetic energy, mutual transformation among different energy forms is realized, and the research category of the Newton impact law is broken. Therotational kinetic energy of the liquid drops can be used for driving a substance to rotate directionally, and a new thought and a research basis are provided for novel hydroelectric generation. The method for controlling the rotation rebounding of the liquid drops can be applied to energy collection and transformation, substance driving, substance mixing and the like.
Owner:INST OF CHEM CHINESE ACAD OF SCI +1

Mobile English teaching blackboard with dust collection function

A mobile English teaching blackboard with a dust-absorbing function, comprising a board body, two supporting boards are fixedly connected to the lower side of the board body, two rollers are fixedly connected to the lower side of the supporting boards, and the two supporting boards A base plate is fixedly connected between the bottoms, a support column is fixedly connected to the center of the base plate, and the top of the support column is fixedly connected to the lower side of the plate body. A vertical through hole is opened in the support column, and the cross section of the vertical through hole is rectangular. A rack is arranged in the vertical through hole, and the teeth on the rack are arranged to the right. The bottom end of the rack is fixedly connected with a mounting plate, and stabilizing blocks are fixedly connected around the lower side of the mounting plate; the right side of the support column The wall is provided with a vertical moving slot, the right side of the rack is meshed with a gear, the middle of the gear is fixedly connected with a rotating shaft, and the front and rear sides of the support plate are fixedly connected with baffles. The invention has the advantages of reasonable structural design, convenient use and the mutual conversion between blackboard writing and moving states, and has certain popularization and application value.
Owner:龙里县逸轩生产力促进中心

Redox-responsive color-changing rare earth supramolecular gel fluorescent material and preparation thereof

The invention belongs to the field of functional materials, and more particularly relates to a redox-responsive color-changing rare earth supramolecular gel fluorescent material and a preparation method thereof. The redox-responsive color-changing rare earth supramolecular gel fluorescent material is prepared by mixing a mixed solution of an aqueous solution containing rare earth ion europium ionsand alkali liquor with an organic solution containing gel factor 3,5-dinitrosalicylic acid. Under alkaline conditions, the rare earth supramolecular gel fluorescent material is self-assembled by utilizing the coordination effect of the gel factor 3,5-dinitrosalicylic acid and rare earth ion europium ions and the PI-PI interaction of benzene rings of the 3,5-dinitrosalicylic acid. The gel formed has unique fluorescence characteristics of the rare earth ions, good luminous intensity and high fluorescence efficiency, and the excitation spectrum is located in a visible light region and has stronganti-interference capability. The rare earth supramolecular gel has redox responsiveness, simple and rapid preparation process, no need of heating treatment, and easily available gel factor, and therare earth supramolecular gel material has better application prospect in the high-end anti-counterfeiting field.
Owner:HUAZHONG UNIV OF SCI & TECH

180-degree overturning invisible sofa bunk bed

PendingCN109124154ASimple structureIncrease lying areaSofasCouchesEngineering
The invention relates to the technical field of multi-functional sofas, and specifically relates to a 180-degree overturning invisible sofa bunk bed. The 180-degree overturning invisible sofa bunk bedcomprises an upper sofa seat and a lower sofa seat, wherein the lower sofa seat is internally provided with an installation frame; and a lower bed frame lifting connecting rod is arranged inside theinstallation frame. The 180-degree overturning invisible sofa bunk bed is characterized in that the installation frame is internally provided with an extension type lower bed frame; an overturning connecting rod is connected with the lower bed frame lifting connecting rod; the extension type lower bed frame comprises a lower bed frame and an extension bed frame; the extension bed frame is U-shaped; and two sides of the extension bed frame are slidably installed inside sliding grooves in the front and rear ends of the lower bed frame. The 180-degree overturning invisible sofa bunk bed has the advantages that the structure of a lower bunk is improved, an extension telescoping mechanism is added, the lying area of the lower bunk after unfolding is increased, and the sofa bunk bed is safer andgood in protection performance. The sofa bunk bed is light in weight, convenient for transportation, high in strength and long in service life. Through simple pull-up overturning operation, mutual conversion of a sofa and a bunk bed can be realized, the operation is simple and convenient, the space is saved, and the sofa bunk bed is applicable for houses with relatively small areas.
Owner:SHANTOU HUAXIANG FURNITURE CO LTD

Distributed type energy supplying device and cooling, heating and power decoupling method and device

The invention relates to a distributed type energy supplying device and a cooling, heating and power decoupling method and device. When a center controller of the distributed type energy supplying device is in a large running mode and the electric load currently needed by a user side is larger than or equal to real-time power generating power, a power storing device is started to supplement electric energy for a user side, and an organic Rankin power generating unit is started to recycle waste heat of an absorbing type heat pump unit and a gas internal combustion engine and supplement the electric energy for the user side; under the large running mode and when the cold load currently needed by the user side is larger than or equal to first preset cold load, an electric heat pump unit is started to acquire the electric energy of the power storing device, the gas internal combustion engine and a renewable energy power generating device for refrigerating and supplementing cold gas for theuser side; and under the large running mode and when the heat load currently needed by the user side is larger than or equal to the first preset heat load, the electric heat pump unit is started to acquire the electric energy of the power storing device, the gas internal combustion engine and the renewable energy power generating device for heating and supplementing heat for the user side. Due tothe distributed type energy supplying device and the cooling, heating and power decoupling method and device, the energy utilizing rate can be increased, and environment friendliness is achieved.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD

High-heeled shoes with different replaceable heels

The invention discloses a pair of high-heeled shoes with different replaceable heels. The main structure of each high-heel shoe includes the heel and a clamping platform, each clamping platform is arranged on the heelpiece part of a corresponding shoe body, and the clamping platforms and the heels are connected and fixed through latch mechanisms and wedge mechanisms; each latch mechanism includes a clamping groove arranged on each heel, and the corresponding clamping platform arranged on the heelpiece part of the shoe body, the clamping grooves and the clamping platforms are matched in shape and fixed mutually, and the clamping groove on the heelpiece part of each shoe body face a corresponding shoe head; the top layer of each clamping platform is connected with the heelpiece part of the corresponding shoe body, the bottom layer of each clamping platform is a wedge structure layer, and each clamping platform includes a button, a limiting shaft, a sliding wedge clamp column, a component fixing housing and a reset spring; each wedge mechanism includes a wedge at the rear end of the corresponding button and a sliding wedge clamp column with a wedge surface. According to high-heeled shoes with the replaceable different heels, a person wearing the high-heeled shoes can replace the heels without taking off the high-heeled shoes, the heels different in height can be replaced, and the requirement that the person can wear the shoes suitable in heel height on different occasions is met.
Owner:上海厘秘信息科技有限公司

Energy storage system and method of offshore wind generating set

The invention relates to an energy storage system and method of an offshore wind generating set. The energy storage system comprises a first storage device and an energy storage device. The first storage device is a box body with a containing cavity, is far away from the bottom of a tower drum of the offshore wind generating set and is arranged at a preset height away from the sea level. The energy storage device comprises a water pump and a motor in transmission connection with the water pump, and the water pump communicates with the first storage device through a first pipeline and further communicates with seawater through a second pipeline. The motor is connected with the power grid and used for driving the water pump to pump the seawater into the first storage device. Or, when the first storage device releases the seawater, the water pump is pushed to operate and drive the motor to generate electricity at the same time, and electric energy is transmitted to the power grid. According to the energy storage system and method of the offshore wind generating set, a pumped storage power station does not need to be specially built according to terrains, stored energy of the offshorewind generating set can be flexibly adjusted, and the reliability is high.
Owner:BEIJING ETECHWIN ELECTRIC

Risk reduction scheduling method for electricity-gas interconnected energy system under condition of fan failure

The invention provides a risk reduction scheduling method for an electricity-gas interconnected energy system under the condition of fan failure, which is used for solving the problem of high risk forthe safe operation of the electricity-gas interconnected energy system due to the failure of a wind turbine generator set caused by faults of a power grid and the generator set in the prior art. Themethod comprises the steps of establishing a fan failure risk indicator of the electricity-gas interconnected system considering P2G based on the operation characteristics of the electricity-gas interconnected system and the fan failure risk; fully considering the constraint of an electric power system and the constraint of a natural gas system, establishing a multi-objective optimization model with the minimum risk of fan failure and the minimum coal consumption cost of a coal-fired unit so as to solve the contradiction between the risk and the coal consumption cost in the operation process of the system, thereby realizing risk reduction scheduling of the electricity-gas interconnected energy system, and improving the wind power consumption capability of the electricity-gas interconnectedsystem.
Owner:CHONGQING UNIV

Efficient electromechanical integrated equipment

The invention discloses efficient electromechanical integrated equipment which comprises an electromechanical shell, a generator set, a motor set, a rotary shaft, a flywheel and a flywheel guard. Theelectromechanical shell is externally provided with a cylindrical shell and internally provided with the generator set and the motor set in sequence. The rotary shaft is arranged in the middle of theelectromechanical shell in a penetrating mode and provided with the generator set and the motor set. The left side of the rotary shaft is connected with the flywheel, and the outer side of the flywheel is provided with the flywheel guard in a covered mode. The flywheel guard is equal to the electromechanical shell in diameter. The efficient electromechanical integrated equipment has the beneficialeffects that the structure is simple, use is convenient, the generator set and the motor set are arranged, on the one hand, power can be provided for mechanical movement, and electric energy is converted into kinetic energy; on the other hand, the electric energy can be reserved, the electric energy is converted into mechanical energy, mutual conversion of the kinetic energy and the mechanical energy is achieved, and the efficiency is improved; and meanwhile, a cooling device is arranged, the temperature is decreased, and the service life is prolonged.
Owner:天津市三利机电设备工程有限公司

Electric system electromechanical transient simulation modeling method based on ODM

The invention provides an electric system electromechanical transient simulation model building method based on an ODM. The electric system electromechanical transient simulation model building method based on the ODM comprises the following steps of (1) carrying out improvement on the defects of the ODM, (2) on the basis of the improved ODM, building a transition model applicable to electric system electromechanical transient simulation calculation according to the model situation of a targeted electric system, and (3) carrying out conversion on the transition model, and obtaining the final electric system electromechanical transient simulation model. The electric system electromechanical transient simulation model building method based on the ODM is clear in layer, simple and easy to implement, and can make full use of the advanced IT software technology and the advanced IT hardware technology to build a powerful electric system electromechanical transient simulation program and a complete electric system basic data management database. The electric system electromechanical transient simulation model building method based on the ODM has full expandability and openness, is beneficial to model maintenance, facilitates interaction with other programs which need to operate the electric system electromechanical transient simulation model, and is convenient to use and practical.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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