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42 results about "Wind effect" patented technology

Resource evaluation method and system based on multi-landform feature correction

The invention discloses a resource evaluation method and system based on multi-landform feature correction, which remarkably improves the accuracy of wind speed and solar radiation data by combining physical constraint correction and machine learning methods, and particularly improves the accuracy of the wind speed and solar radiation data under the conditions of complex terrains and multiple earth surface types. The problem of systematic errors existing in ERA5 reanalysis data in the prior art is solved. Specifically, through elimination of invalid values of radiation data at night and correction of wind speed data based on surface roughness, deviation caused by factors such as terrain shielding, vegetation canopy reflectivity and urban building group wind resistance effect is effectively eliminated. The ERA5 data is trained and optimized by using a machine learning model such as a random forest, so that the wind speed and radiation data at different geographic positions, seasons and time periods can be more accurately corrected, and the corrected data is more in line with an actual observation result.
Owner:HUBEI PROVINCIAL METEOROLOGICAL SERVICE CENT (HUBEI PROVINCIAL PROFESSIONAL METEOROLOGICAL SERVICE DESK)

Farmland protection forest area windproof effect evaluation method based on land-air coupling model

The invention discloses a farmland protection forest area windproof effect evaluation method based on a land-gas coupling model, and relates to the technical field of agricultural science, high-precision topographic data of a target farmland protection forest area is collected and preprocessed, and spatial distribution information of a farmland protection forest is obtained by combining remote sensing image interpretation; on the basis of topographic data and spatial distribution information, topographic relief and earth surface coverage features are analyzed, and a refined underlying surface classification system is constructed; and configuring high-resolution grid parameters of a WRF mode, and coupling a Noah-MP land surface process model. According to the farmland protection forest area wind-proof effect evaluation method based on the land-gas coupling model, through combination of high-resolution topographic data and a multi-source remote sensing image, topographic relief and surface heterogeneity of a farmland protection forest area can be accurately depicted, and a WRF mode is coupled with a Noah-MP land surface process model; fine simulation of complex terrains and various underlying surfaces is realized, the limitation of traditional uniform underlying surface hypothesis is overcome, and the accuracy of windproof effect evaluation is remarkably improved.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Electric tower stay wire fitting

The invention discloses an electric tower stay wire fitting, and relates to the technical field of stay wire fittings. In order to solve the problems that an existing wedge-shaped fitting is fixed only by abutting against a straight plate and slips off under the long-term wind action, the wedge-shaped fitting comprises a fitting body, the fitting body comprises a U-shaped bolt, the periphery of the U-shaped bolt is slidably connected with a stay wire block, and a stay wire channel and a conical block are arranged in the stay wire block; a wire pulling assembly and an abutting assembly are arranged in the wire pulling channel, and the wire pulling assembly comprises a fixing column and a sliding sleeve plate; the abutting assembly comprises a sliding groove, an abutting block, a connecting rod, an extending rod and a rotating piece. The extension rod is driven by the rotating piece to slide in the sliding groove, so that the abutting block is unfolded outwards, the stay wire is pushed to be tightly attached to the inner wall of the stay wire channel, and the contact area and friction force are increased. Through a mechanical expanding type fixing structure, the stay wire is effectively prevented from slipping under the long-term action of wind power, and the fixing stability of the stay wire of the electric tower is remarkably improved.
Owner:ZHEJIANG ZHOUSHAN QIMING POWER CONSTR CO LTD

A high-rise building wind effect active suction and blowing control method based on deep reinforcement learning

This invention relates to an active intake and blowing control method for wind effects in high-rise buildings based on deep reinforcement learning. This invention relates to the fields of active flow control and wind-induced vibration control in high-rise buildings. Addressing the shortcomings of existing wind-resistant measures for high-rise buildings in complex wind environments and the insufficient feasibility of active flow control engineering, this invention discloses an active intake and blowing control method for wind effects in high-rise buildings based on deep reinforcement learning. The method includes: constructing an active intake and blowing control device for wind effects in high-rise buildings, constructing a wind tunnel test environment, establishing a deep reinforcement learning model, and realizing interactive training between the model and the wind tunnel test environment. This method can adaptively adjust the intake and blowing flow rates according to real-time wind environment information and structural wind-induced vibration response information, changing the flow field structure around the building, reducing unfavorable flow separation and wake vortex shedding, thereby reducing wind load and wind-induced vibration response in high-rise buildings.
Owner:HARBIN INST OF TECH

Air-blowing device, air conditioner and control method thereof

The present application provides a kind of soft wind device, air conditioner and its control method, wherein the soft wind device, comprising: first soft wind blade group, first soft wind blade group includes multiple blades spaced apart along the first direction, blade includes left side piece and right side piece, the first side of left side piece is connected with the first side of right side piece, blade has left side piece and right side piece opposite opening state, when the air conditioner applied by soft wind device runs soft wind mode, blade is in opening state, when blade is in opening state, left side piece and right side piece form acute angle and the first side is in the upstream side of air flow flow direction.The present application opens the blade of acute angle in soft wind mode, can form the resistance to the air flow of outlet air and change the flow direction of air flow, effectively prevent the discomfort caused by the air flow of outlet air straight blowing user, simultaneously, the blade in the present application realizes soft wind effect by opening mode instead of the micro-hole structure in prior art, eliminates the phenomenon that micro-hole structure is easy to block.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Wind-resistant quick roller shutter door

The utility model discloses a wind-resistant quick roller shutter door, and relates to the technical field of roller shutter doors. The anti-wind device comprises the body and the anti-wind mechanism, the anti-wind mechanism comprises the shell, the buckle, the fixing block and the buckling groove are arranged, when the infrared sensor detects that the roller shutter deforms due to wind power, the buckle can be driven to rotate and be buckled with the buckling groove, the roller shutter can be rapidly and effectively fixed through the buckling mechanism, and the anti-wind effect is good. The roller shutter can be prevented from continuously shaking or deforming due to wind power, extra supporting force is provided through tight combination of the buckle and the buckle groove, the roller shutter can be kept stable in strong wind weather, the damage risk caused by wind power is reduced, when the wind power is weakened or disappears, buckling of the buckle and the buckle groove can be easily removed, the roller shutter can restore the normal lifting function, and the service life of the roller shutter is prolonged. The infrared sensor can monitor the state of the roller shutter in real time, and can immediately send out a signal once detecting that the roller shutter deforms due to wind power, so that the roller shutter is effectively prevented from being damaged or derailed due to excessive wind power.
Owner:SEPPES DOOR IND (SUZHOU) CO LTD

Human settlement environment suitability evaluation method based on remote sensing data and urban heat island effect

The invention discloses a human settlement suitability evaluation method based on remote sensing data and an urban heat island effect, and relates to the field of human settlement suitability monitoring, and the method comprises the steps: extracting the urban heat island intensity and the grade thereof in a spatial region range based on meteorological satellite remote sensing data; satellite surface temperature data and relative humidity meteorological reanalysis data are fused, numerical values of surface temperature and relative humidity in a spatial region range are extracted, a temperature and humidity index and a grade thereof are calculated, and a wind efficiency index and a grade thereof are also calculated; and after the obtained urban heat island intensity, the temperature and humidity index and the wind efficiency index are subjected to standardization processing according to the grades, the human settlement environment condition evaluation index is calculated according to the weight of each index. The method focuses on providing an evaluation system based on meteorological satellite product data and the urban heat island effect, and is used for evaluating the influence of climatic elements on the human settlement suitability of the whole country and the city under the climatic change background.
Owner:NAT SATELLITE METEOROLOGICAL CENT

Steel structure wind-induced fatigue evaluation method based on meteorological data and wind tunnel data

The invention discloses a method for evaluating wind-induced fatigue of a steel structure based on meteorological data and wind tunnel data. According to the method, an extreme value distribution model and a mixed Von-mises distribution theory are utilized to respectively fit local wind speed and wind direction probability density functions, and then a wind speed and wind direction joint probability density function is obtained; combining wind tunnel test data, carrying out structural dynamic time history analysis through a scale ratio theory and a mechanical equivalence principle, screening key components, and extracting a stress time history; and finally, calculating the fatigue life by using a rain flow counting method and an SN curve. According to the method, multi-source data are fused, the unsteady wind effect is considered, compared with a traditional method, the accuracy and rationality of wind-induced fatigue life prediction are improved, a reliable basis is provided for wind resistance design of an engineering structure, and the method has high engineering application value.
Owner:EAST CHINA ARCHITECTURE DESIGN AND RESEARCH INSTITUTE CO LTD +1

Indoor unit and control method of air conditioner

The application provides an indoor unit and a control method of an air conditioner. The indoor unit comprises: a bottom shell, the bottom shell is provided with an air outlet guide mechanism, the guide mechanism is rotatably arranged at the air outlet, and at least part of the guide mechanism is provided with an air outlet channel; an oscillation assembly is arranged in the air outlet channel; a magnetic attraction assembly is connected with the guide mechanism, the magnetic attraction assembly has a blocking position for blocking the air outlet channel, and the magnetic attraction assembly has an avoiding position for avoiding the oscillation assembly in the air outlet channel; when the magnetic attraction assembly is in the avoiding position, part of the air flow blown from the air outlet is blown out of the bottom shell through the air outlet channel. According to the technical scheme of the application, when the magnetic attraction assembly is in the avoiding position, part of the air flow blown from the air outlet is blown out of the bottom shell through the oscillation assembly in the air outlet channel, so that the soft wind effect is achieved, the problem of the indoor unit directly blowing air flow to people is solved, and the air outlet comfort of the indoor unit is improved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION

Wind direction measurement deviation identification method, device and equipment of wind turbine and medium

The application discloses a kind of wind direction measurement deviation identification method, device, equipment and medium of wind turbine unit.The method comprises: determining the multiple reference operating information of wind turbine unit;By the power, wind speed and wind direction corresponding to each reference operating information are curved surface fitting, the reference operating characteristic curved surface information of wind turbine unit is obtained;According to reference operating characteristic curved surface information, the reference wind direction measurement deviation characteristic curve information of wind turbine unit is determined;Wind direction measurement deviation characteristic curve information is used to describe the continuous curve of the relationship between wind speed and the wind direction measurement deviation corresponding to the maximum power point of wind turbine unit under corresponding wind speed;According to reference wind direction measurement deviation characteristic curve information, wind direction measurement deviation identification and correction are carried out on wind turbine unit.The technical scheme of the present application identifies the deviation between the measured wind direction and the actual wind direction, realizes more accurate yawing wind effect of wind turbine unit, and improves the power generation performance of wind turbine unit.
Owner:SHANGHAI POWER EQUIPMENT RESEARCH INSTITUTE CO LTD

Method for adjusting aircraft controls

A system for controlling aircraft flight control surfaces implements a method including: obtaining a control law for the flight control surfaces as a function of flight controls of the aircraft; obtaining measurements of ground speed, true speed, roll angle, pitch angle, angle of attack, sideslip angle and slope angle; performing an estimation of the wind in three dimensions using the measurements obtained; performing an adjustment of the control law for the flight control surfaces, to counter the estimated wind effect and to obtain an adjusted control law for the flight control surfaces, by adding, to the control law, a term for wind compensation comprising a term proportional to the derivative of the wind estimation; and controlling the aircraft by applying the adjusted control law. Thus, the impact of the wind on the aircraft is reduced by digital processing and automatic adjustment of the control of the flight control surfaces.
Owner:AIRBUS OPERATIONS (SAS)

Ventilation device for tremella aurantialba culture room

The utility model discloses a ventilation device for a tremella aurantialba culture room, which belongs to the technical field of tremella aurantialba culture and comprises a box body, a plurality of fixing holes are formed in the box body, a grid plate is connected to the box body, a filter plate is connected to one side, opposite to the grid plate, of the box body, a protective plate is connected to the box body, and a cross rod is connected to the box body. Sliding grooves are formed in the upper portion and the lower portion of the interior of the box body. According to the ventilation device for the tremella aurantialba culture room, a first motor is started to rotate a lead screw, a matching block in threaded fit with the lead screw is promoted to drive a fixing hoop to move along the lead screw, a sliding block can slide on a guide rod, then a barrel shell reciprocates in a box body, a working motor can rotate fan blades, and the fan blades are promoted to blow air for ventilation; through reciprocating horizontal movement, the natural wind effect is simulated, exchange of air around a culture point is promoted, the ventilation range is expanded, and the installation number of ventilation devices is reduced.
Owner:NANJIANG HONGXIN BIOTECH

Wind wheel structure and bath heater

The invention discloses a wind wheel structure which comprises a frame body and blades, and the blades are arranged on the frame body in a radial mode. Each blade comprises a body, a first side edge and a second side edge, and the body is provided with a first surface and a second surface which are oppositely arranged; the first side edge is arranged along the length direction of the body, and the second side edge is arranged along the width direction of the body; the body is provided with a noise reduction hole, and the noise reduction hole is provided with a through hole structure penetrating through the first face and the second face. According to the wind wheel structure, the noise reduction holes penetrating through the first faces and the second faces are formed in the blades, airflow on the high-pressure faces of the blades flows to the low-pressure faces through the noise reduction holes, the boundary layer blowing effect is formed, the surface flow field structure of the blades is optimized, and the effect of low noise is achieved while the high wind speed is provided. The invention further provides a bath heater comprising the wind wheel structure.
Owner:HUIZHOU NVC OPTOELECTRONICS TECH CO LTD

Microbial strain constant-temperature cultivation device

The utility model relates to a microbial strain constant-temperature cultivation device which is characterized in that rotating rings (23) are arranged between an air supply plate (21) and an air suction plate (22), the axes of the two rotating rings (23) coincide and are horizontally arranged, a plurality of supporting rods (24) and a rotating drum (25) are arranged between the two rotating rings (23), and the rotating drum (25) is connected with a placing disc (27) through an extension rod (26); a rotating ring (23) is controlled to rotate to drive a supporting rod (24), a rotating drum (25) and a placing disc (27) to revolve, due to the fact that the supporting rod (24) and the rotating drum (25) rotate relatively, strains in a placing groove (28) face upwards all the time, the strains in the placing groove (28) are subjected to air blown out by an air supply plate (21) from top to bottom all the time, air suction is conducted through an air suction plate (22), and air flow circulation type temperature rising or cooling is achieved. The strain is good and uniform in wind receiving effect, and strain growth is facilitated.
Owner:SHANGCHENG BEINACHUANGLIAN BIOTECHNOLOGY CO LTD

Ship having a propulsive and / or flow directing element that is to be positioned to catch the wind, such as a sail or profiled mast, and device for adjusting such a propulsive and / or flow directing element

The present invention relates generally to the automated setting of the angle of attack of propulsive and / or flow directing elements to catch the wind, such as the automated paying-out and recovery of ropes for sails or the automated rotation of profiled masts. The invention relates firstly to ships having at least one propulsion and / or flow directing element that is to be positioned to catch the wind, such as a sail, a profiled mast and the like, and that is mounted adjustably relative to a hull. The invention also relates to a device for adjusting such a propulsive and / or flow directing element that is to be positioned to catch the wind, comprising: an actuator motor and a drive train for transmitting an actuating and / or holding moment and / or an actuating and / or holding force from the actuator motor to the movably mounted propulsive and / or flow directing element; and a control device for automated adjustment of the propulsive and / or flow directing element depending on wind effects such as wind direction and / or wind strength. According to the invention, the control device for adjusting the propulsive and / or flow directing element has a measuring device for measuring the drive loading, in the form of an actuating and / or holding force and / or an actuating and / or holding moment, acting in the drive train and / or on the actuator motor, and also a control module for activating the actuator motor in order to bring the propulsive and / or flow directing element into various positions depending on the drive loading measured in the drive train and / or on the actuator motor.
Owner:LIEBHERR COMPONENTS BIBERACH GMBH

A dirt-proof train roof insulator structure

This invention provides a structure for an anti-pollution train roof insulator, relating to the field of high-speed train technology. It includes multiple core rods and multiple sheds, with the sheds fixed to both ends of the core rods. The upward and downward tilt angles of the sheds are adjustable. This invention considers the wind effect, improving the pressure on the leeward side of the insulator by changing the upward and downward tilt angles of the sheds and the height of the core rods. This alters the airflow on the insulator surface, optimizing pollution accumulation and effectively reducing the probability of flashover accidents on the train roof insulator.
Owner:SOUTHWEST JIAOTONG UNIV +1

High-altitude unmanned aerial vehicle for dry powder water-based fire extinguishing bomb

This invention discloses a high-altitude dry powder water-based fire extinguishing bomb drone, relating to the field of drone-based fire extinguishing bomb technology. It includes a heavy-load drone body with a mounting frame fixedly connected to its bottom. Multiple placement compartments are arranged within the mounting frame. This high-altitude dry powder water-based fire extinguishing bomb drone, through the multiple placement compartments on the mounting frame and the cooperation of a moving mechanism and a clamping mechanism, enables the drone to drop multiple fire extinguishing bombs during a single flight. Simultaneously, a transmission mechanism drives adjusting plates to rotate, causing two adjusting plates to rotate forward of the mounting frame, thereby moving the fire extinguishing bombs in the placement compartments forward. This effectively balances the weight behind the mounting frame, achieving a balanced gravity area for the bombs. This enhances the stability of the drone during high-altitude bomb dropping and reduces the risk of crashes due to center of gravity shift and wind effects.
Owner:黑龙江省兴凯湖风景名胜区消防救援大队

DeepWind: Artificial Intelligence Device and Methods for Recognizing Wind Along a Projectile Trajectory Path using String

An artificial intelligence (AI) device and methods for recognizing wind along a projectile trajectory path by recognizing winds effect on a string. The string is the teacher. Embodiments include a deep learning model implemented as convolutional neural networks to detect a string and identify wind direction and speed along at least a segment of the projectile trajectory path to a target. The AI is trained with images (photos and or video) and / or audio recordings of strings as well as wind direction and speed at number of points along the projectile trajectory path. One embodiment supports the string with a rod having a predetermined pattern of dark bands and light bands. The trained, portable AI device recognizes a string in real time. When optimum wind speed is sustained for brief time, a green light is illuminated. An aiming point is adjusted for range and crosswind.
Owner:EVRIO INC

Method for determining most unfavorable working condition of downburst wind load of power transmission line

The invention discloses a method for determining the most unfavorable working condition of downburst wind load of a power transmission line. The method comprises the following steps: 1) obtaining the line wind load of the power transmission line under downburst; 2) performing quasi-static linear analysis on the power transmission line-insulator system under the action of downburst wind to obtain wind vibration response of the multi-span power transmission line-insulator system; 3) with seeking maximum transverse and longitudinal wind loads of wires of a tangent tower and a strain tower as an optimization target, constructing a worst working condition parameter combination optimization model when the counterforce transmitted to the tower by the multi-span power transmission line-insulator system is maximum; 4) solving the model to obtain the most unfavorable working conditions of the tangent tower and the strain tower; and 5) selecting power transmission lines of different conductor types as research objects, and optimizing the maximum values of the transverse and longitudinal wind loads of the conductors of the tangent tower and the strain tower to obtain the most unfavorable wind effect parameter configuration under different working conditions. The method provided by the invention remarkably reduces the time cost and the calculation overhead required by numerical simulation.
Owner:WUHAN UNIV OF TECH

Variable soft-blow control method

ActiveCN117419431Bachieve a reasonable balanceImprove comfortAir velocityRoom temperature
The present application relates to the field of air conditioner control, in order to realize the balance between the soft wind effect, condensation problem and room cooling load, provide variable soft wind control method: according to the set temperature, room temperature and temperature threshold determine the swing position, and according to the indoor relative humidity φir Determine the indoor unit speed and the maximum operating frequency of the compressor, can be in the cooling soft wind function is opened, through the reasonable matching indoor unit speed, swing angle, compressor frequency and with the change process of room temperature, indoor relative humidity during cooling dynamic adjustment three operating parameters, to realize the reasonable balance of cooling load, comfortable air supply and condensation under the soft wind function, improve the comfort and satisfaction of consumers.
Owner:SICHUAN CHANGHONG AIR CONDITIONER CO LTD

Method for evaluating windbreak effect of farmland shelterbelt based on land-atmosphere coupling model

The application discloses a farmland shelterbelt regional windproof effect evaluation method based on a land-air coupling model, and relates to the field of agricultural science and technology. High-precision terrain data of a target farmland shelterbelt region is collected and preprocessed, and spatial distribution information of the farmland shelterbelt is obtained by combining remote sensing image interpretation. Based on the terrain data and the spatial distribution information, terrain undulation and surface coverage characteristics are analyzed, and a refined underlying surface classification system is constructed. High-resolution grid parameters of the WRF model are configured, and the Noah-MP land surface process model is coupled. The farmland shelterbelt regional windproof effect evaluation method based on the land-air coupling model can accurately depict the terrain undulation and surface heterogeneity of the farmland shelterbelt region by combining high-resolution terrain data and multi-source remote sensing images. The WRF model is coupled with the Noah-MP land surface process model to realize fine simulation of complex terrain and multiple underlying surfaces, overcome the limitations of the traditional uniform underlying surface assumption, and significantly improve the accuracy of windproof effect evaluation.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Double-layer ventilation and heat insulation outer wall of data center

The utility model provides a data center double-layer ventilation and heat insulation outer wall, which belongs to the technical field of building outer walls and comprises an inner wall, an outer wall, a first ventilation shutter, a second ventilation shutter and a negative pressure fan, second ventilation shutters are arranged on the lower side of the outer wall, and third ventilation shutters are arranged on the upper side of the outer wall; and the air interlayer is connected between the inner wall and the outer wall. When the outdoor temperature is higher than the indoor temperature, the double-layer ventilation and heat insulation outer wall can isolate outdoor hot air by closing the second ventilation shutter and the third ventilation shutter on the outer wall and closing the first ventilation shutter on the inner wall at the same time, and the closed air space layer is utilized; when the outdoor temperature is lower than the indoor temperature, the negative pressure fan and the first ventilation shutter on the inner wall are opened, the second ventilation shutter and the third ventilation shutter on the outer wall are opened at the same time, and meanwhile heat can be taken away through the air draft effect in the air interlayer; the purposes of reducing the energy consumption of the air-conditioning system, improving the energy efficiency of the data center and reducing the operation cost are achieved.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Fan blade and fan

A fan blade and a fan are provided. The fan blade includes a hub and a plurality of blades. Each blade includes a blade root and a blade tail. The blade tail is twisted relative to the blade root. The blade roots of the plurality of blades are connected to the hub. By twisting the blade tail relative to the blade root, a twisted part plays a role in converging incoming air, so that air blown out of the fan blade is more concentrated, an air blowing effect is enhanced, and a user experience is enhanced. The twisted part plays the role in converging the incoming air, so that the air blown out of the fan blade is more concentrated, which increases an axial pressure, forms an air flow, improves air flowing efficiency of the blades, and improves a wind effect.
Owner:SHENZHEN JISU TECHNOLOGY CO LTD

Dynamic management and control method driven by low-altitude airspace multi-mode large model

The invention discloses a dynamic management and control method driven by a low-altitude airspace multi-mode large model, and relates to the technical field of unmanned aerial vehicle airspace traffic management. And generating a four-dimensional deformable flight pipeline with the highest passing priority for the emergency unmanned aerial vehicle, which comprises the following steps: for each grid, calculating an urban canyon wind effect index, a building wake flow effect index, a thermal turbulence effect index, a signal multipath propagation index and a non-uniform electromagnetic interference index, and after correlation, obtaining a four-dimensional deformable flight pipeline with the highest passing priority for the emergency unmanned aerial vehicle; acquiring a comprehensive risk index of each grid; a four-dimensional deformable flight pipeline is planned based on the four-dimensional dynamic risk field model; according to the method, the situation awareness precision and the risk look-ahead capability of the low-altitude airspace are remarkably improved, the transformation from passive response to active predictive intelligent management and control is realized, and the safety, the efficiency and the capacity of airspace operation are enhanced.
Owner:云南省公路路政管理总队 +2

Battery heat dissipation structure and heat dissipation method of new energy automobile

The invention discloses a battery heat dissipation structure and a heat dissipation method of a new energy automobile, and relates to the technical field related to new energy batteries, the battery heat dissipation structure of the new energy automobile comprises a battery box arranged in a rectangular shape, and further comprises a plurality of partition plates arranged at equal intervals, the partition plates are fixed in the battery box, and the partition plates are fixed in the battery box. A battery pack and a liquid storage box are installed between every two adjacent partition plates, the battery pack is fixed to one end of the battery box, two triangular installation parts are formed through the two ends of the liquid storage box in the length direction and the end, facing the liquid storage box, of the battery box, and alternate or synchronous work can be achieved according to the working condition of the vehicle, and when the vehicle moves, air cooling passive heat dissipation is achieved through the collision wind effect, and extra energy consumption is not needed; when the vehicle runs or parks at a low speed and airflow is insufficient, the liquid cooling system drives the cooling liquid to flow through the circulating pump to actively dissipate heat, full scenes such as vehicle running, low speed and parking are effectively covered, the problem that a single heat dissipation mode is insufficient in efficiency under specific working conditions is solved, and the heat dissipation effectiveness of the battery pack is always guaranteed.
Owner:ZIBO VOCATIONAL & TECHNICAL UNIVERSITY

Control method and device, and carrier

A control method and apparatus, and a carrier are provided. The method includes acquiring travel information of the carrier and controlling, based on the travel information, at least two sound-emitting devices in the carrier's cabin to play a first simulated sound wave with a sound image shift when the carrier accelerates or decelerates in response to an instruction from a user inside the carrier. Furthermore, at least one of an optical display device, an air conditioner, a seat, and a steering wheel is controlled based on the first simulated sound wave. The method may be applied to a carrier such as an intelligent vehicle or an electric vehicle. During the carrier's acceleration or deceleration process, a simulated sound wave with a sound image shift effect is played. This helps to improve the human-machine interaction experience and the user's driving and riding experience. The sound-emitting devices are linked to the optical display device, the air conditioner, the seat, and the steering wheel to create acoustic lighting effects, acoustic vibration effects, and acoustic wind effects, so that the user experiences simulated sound waves that change with the carrier's speed from multiple dimensions.
Owner:YINWANG INTELLIGENT TECHNOLOGIES CO LTD

Method for extracting bridge nonlinear structure damping based on free vibration test

The invention discloses a method for extracting bridge nonlinear structure damping based on a free vibration test, relates to the technical field of bridge wind resistance, solves the stability problem of a bridge under the action of wind, and provides support for optimizing bridge design and improving bridge safety. The method comprises the following steps: S1, carrying out a bridge segment test in a wind tunnel to obtain test structure damping and test total damping, and calculating test aerodynamic damping to obtain real bridge aerodynamic damping; s2, acquiring a time-varying amplitude curve of the bridge from static to vortex-induced vibration under a natural wind condition, and processing the time-varying amplitude curve to obtain the total damping of the real bridge; s3, real bridge structural damping is calculated through the real bridge pneumatic damping and the real bridge total damping; the stability problem of the bridge under the wind effect is solved, and support is provided for optimizing the bridge design and improving the bridge safety.
Owner:SOUTHWEST JIAOTONG UNIV

Control method, control device and computer readable storage medium of air conditioner

The application provides a control method and device of an air conditioner and a computer readable storage medium, comprising: when a heating mode of the air conditioner starts to operate, controlling the air conditioner to enter an anti-cold-wind mode; acquiring an indoor temperature, and controlling an electric auxiliary heater of the air conditioner to start a predetermined gear according to the indoor temperature; adjusting a rotating speed of an inner fan according to at least a change of a temperature of an inner tube of the air conditioner, the inner tube being an evaporator tube; and when a predetermined condition is reached, controlling the air conditioner to exit the anti-cold-wind mode and to turn off the electric auxiliary heater. The method ensures that the air blown out is air with a higher temperature, and the temperature in the room rises relatively quickly while the anti-cold-wind effect is achieved, thereby better alleviating the problem that the temperature in the room rises slowly in the prior art air conditioner anti-cold-wind control method, and ensuring that the human comfort is good.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Moisture-absorbing deformation fabric and preparation method thereof

The invention belongs to the technical field of textile fabrics, and discloses a moisture-absorbing deformation fabric and a preparation method thereof.By combining the design of a double-layer structure of a base layer and a moisture-absorbing expansion layer, the moisture-absorbing expansion layer is made of a polyurethane material and can expand and protrude to form a concave-convex structure after encountering sweat, the direct contact area of the fabric and the skin is reduced, the sweat is prevented from adhering to the skin, and the moisture-absorbing deformation fabric is comfortable to wear. The dry and comfortable touch feeling is kept; meanwhile, deformation of the moisture absorption expansion layer can pull the yarns of the base layer, increase gaps among the yarns and improve the air permeability of the fabric, for example, when the moisture content of the long hexagonal printed fabric is 45%, the air permeability is obviously higher than that of the non-printed fabric with the same moisture content, damp and hot air in the clothes can be quickly released, and the cold effect caused by cold air is relieved; a simpler and more convenient and controllable preparation process is adopted, 30D + 75D regenerated polyester yarns are woven on the substrate layer through a 28-needle weft knitting jacquard knitting machine, and the process is mature and easy to operate; the moisture absorption expansion layer is attached to the surface of the substrate layer through a positioning printing technology, and a complex two-component fiber spinning link is not needed.
Owner:SHANGHAI HIRAN SPORTS TECH CO LTD