593results about How to "Regulation stability" patented technology

The invention provides a control method and device for dehumidification heat compensation of a constant-temperature and constant-humidity air conditioning unit, and the method comprises the steps: firstly monitoring indoor and outdoor temperature and humidity data sets in a current time period T, and obtaining a historical temperature and humidity data set; then, the indoor temperature prediction value and the indoor humidity prediction value are input into the trained convolutional neural network model, and after the convolutional neural network model outputs the indoor temperature prediction value and the indoor humidity prediction value, the indoor temperature prediction value and the indoor humidity prediction value are compared with a preset temperature range and a preset humidity range; when the temperature predicted value or the humidity predicted value exceeds the upper limit or the lower limit of the corresponding preset range, a humidity adjusting mode or a temperature adjusting mode is started, and when the temperature predicted value or the humidity predicted value is within the preset range, the system enters a high-precision fine adjustment mode; and finally, the display displays the current temperature and humidity. An improved convolutional neural network model is adopted, temperature and humidity predicted values are calculated in real time and compared with a preset range, and a humidity adjustment mode or a temperature adjustment mode or a high-precision fine adjustment mode is selected to be started; the temperature and humidity adjusting accuracy is greatly improved, and the user experience is greatly improved.

The invention belongs to the technical field of healthy lighting, solves the problem that the lighting environment in a classroom cannot be dynamically adjusted in the prior art, and provides a healthy lighting control method, device and equipment for dynamically adjusting the lighting environment in the classroom. The method comprises the steps of obtaining a corresponding time schedule with a target illumination space as a classroom; querying the time schedule according to the current time to obtain teaching activity information corresponding to the current time; obtaining a parameter adjustment coefficient of an illumination adjustment parameter according to the teaching activity type; for each teaching activity type, adjusting an illumination control parameter by using an adjustment coefficient to obtain a target illumination parameter; according to the target illumination parameter, the historical illumination adjustment parameter and the teaching activity type and time period, obtaining an illumination adjustment rate; and controlling the light source to illuminate according to the target illumination parameter and the illumination adjustment rate. The illumination environment in the classroom can be dynamically adjusted, and the healthy illumination requirement of a user is met.

The invention discloses insect prevention, irrigation and fertilization integrated equipment based on vegetable greenhouse planting. The insect prevention, irrigation and fertilization integrated equipment comprises a walking frame, a lifting mechanism, an inclination angle adjusting mechanism and an operation mechanism. The lifting mechanism is installed on the walking frame, and the dip angle adjusting mechanism is connected with the lifting mechanism and ascends and descends along with the lifting mechanism. In the operation mechanism, an assembling support is matched with the inclination angle adjusting mechanism, and a main folding and unfolding support is installed on the assembling support in a sliding mode. The alignment adjusting assembly is in power connection with the main folding and unfolding support. And the folding and unfolding adjusting assembly is in power connection with the auxiliary folding and unfolding supports. The driving assembly is in power connection with the alignment adjusting assembly and the folding and unfolding adjusting assembly; the spraying assembly comprises a nozzle, a liquid supply connecting pipe and a scissors fork type mechanism, the scissors fork type mechanism is mounted on the main and auxiliary retractable brackets, the liquid supply connecting pipe is uniformly assembled on the scissors fork type mechanism, and the nozzle is connected to the liquid supply connecting pipe. The production efficiency of greenhouse vegetables can be effectively improved, the cost is reduced, the resource waste is reduced, and the requirements of efficient, energy-saving and sustainable agricultural development are met.

The invention discloses a self-adaptive homeward voyage positioning system of a high-altitude operation mooring unmanned aerial vehicle, which relates to the technical field of unmanned aerial vehicles and comprises a data acquisition unit, a control analysis unit and a homeward voyage execution unit. In the aspect of safety, accurate return flight, reasonable trajectory planning in the high-rise stage and stable state adjustment in the low-rise stage are guaranteed through hierarchical control analysis, and the collision and falling risks are reduced. In the aspect of adaptability, the layered landing strategy deals with different heights, the high layer pays attention to preliminary adjustment, and the low layer flexibly controls the speed and direction and adapts to various initial heights; the real-time update instruction can cope with environmental changes, such as airflow interference and the like. In terms of operation efficiency, efficiency is improved through hierarchical planning, unnecessary adjustment is reduced, and homeward voyage time is shortened; the control instruction is automatically generated, the operation process is simplified, the burden of operators is relieved, the human error risk is reduced, the operation efficiency is improved, and meanwhile it is ensured that the unmanned aerial vehicle safely and stably completes the homeward voyage task.

The utility model relates to a scissor mechanism with a double-layer wire clamping function. The scissor mechanism comprises a scissor seat, a transmission assembly, a pair of scissors, a hook knife and a wire clamping assembly, the transmission assembly is arranged on the scissor seat and used for controlling opening and closing of the scissors and thread hooking of the hooking knife; the wire clamping assembly comprises a first movable piece, a clamping piece and a second movable piece, the clamping piece is fixedly arranged above the scissors, and the first movable piece and the second movable piece are rotationally arranged above the scissors; the clamping piece is provided with a first clamping part and a second clamping part, and the first clamping part and the second clamping part are arranged at an interval; the first movable piece and the first clamping part are partially overlapped in the vertical direction to clamp the first yarn or are staggered in the vertical direction to form a pay-off space; and the second movable sheet and the second clamping part are partially overlapped in the vertical direction to clamp the second yarn or are staggered in the vertical direction to form a pay-off space. The two clamping layers are arranged, clamping and cutting of two kinds of yarn and switching of yarn clamping positions can be carried out, and the knitting possibility is increased.

The invention discloses an improved sliding-mode active-disturbance-rejection control method for a two-stage energy storage converter, and the method comprises the steps: firstly, building a mathematical model of the energy storage converter in a three-phase static coordinate system, converting the mathematical model into a d-q rotating coordinate system, converting the mathematical model into a second-order active-disturbance-rejection normal form on the basis, and then carrying out the design of a super-spiral expansion state observer. In order to reduce system buffeting, a discontinuous switching item sign function in the super-spiral expansion state observer is replaced by a hyperbola function; secondly, a variable gain function which can change in real time along with observation errors is designed to replace the linear gain of ST-ESO, so that the disturbance observation capability is improved; and then, a superhelix integral terminal sliding mode is introduced as a feedback controller, so that the control precision and the convergence speed of the system are improved, and the robustness of the system is better improved.

The invention relates to the technical field of valve control, and discloses a flow-controllable water-saving valve which comprises a control module used for receiving crop water demand data, soil humidity data and environmental parameters, calculating irrigation demands according to the data and generating control signals to adjust irrigation time, frequency and flow; the executing mechanism is connected with the control module and used for adjusting opening and closing of the valve according to the control signal; the sensor assembly is used for collecting real-time data of an irrigation area and sending the real-time data to the control module; the valve assembly comprises a valve element capable of adjusting flow and a flow adjusting device, and the flow adjusting device adjusts the opening and closing degree of the valve element according to instructions of the executing mechanism. By adjusting the irrigation time and the unit time flow, the soil moisture penetration depth can be accurately controlled, too deep or too shallow growth of root systems is prevented, root system distribution is optimized, the water absorption and drought resistance of crops are improved, meanwhile, excessive irrigation or deep layer leakage can be avoided, and water resource waste is remarkably reduced.

The utility model relates to the technical field of gear deburring, and discloses a gear deburring device which comprises an operation table, a conveying mechanism is arranged on the inner top wall of the operation table, a clamping limiting mechanism is arranged at the top of the conveying mechanism, a supporting frame is fixedly connected to the top of the operation table, and sliding grooves are formed in the two sides of the supporting frame. Sliding blocks are slidably connected into the two sliding grooves, one side of one sliding block is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly sleeved with a brush roller. According to the gear deburring device, the clamping and limiting mechanism, the second motor and the brush roller are arranged, the clamping and limiting mechanism can clamp and limit gears of different sizes, the gears are stably conveyed, the height of the brush roller is flexibly adjusted, and the situation that the brush roller polishes the gears too deeply to damage the gears or polishes the gears too shallow to affect the deburring effect can be prevented; and the effects of stable gear transmission and efficient and flexible deburring are achieved.

The invention relates to the field of rice seedling raising. The invention discloses a rice seedling raising device and a using method, and aims to solve the problems that when existing rice is cultivated through a tray, the angle of the tray needs to be adjusted to enable the rice to be irradiated by sufficient sunlight, and when the angle of the rice is adjusted, the rice cannot be raised. Due to continuous growth of rice, the rice on stacked trays can be hindered when the angle of the trays deviates, and the rice cultivation effect is affected. The trays arranged in a clamped mode can deflect through the adjusting frames on the adjusting rods, so that the multiple trays vertically arranged at equal intervals are inclined, seedlings on the multiple trays can make full contact with sunlight conveniently, and the seedlings grow evenly.

The invention provides a slope cropland fertilizing device and method, belongs to the technical field of fertilizing, and aims to solve the problem that a fertilizing device special for slope cropland is lacked in the prior art. Comprising a vehicle body, a chemical fertilizer box, a fertilizer distributor, a mixer, a fertilization angle adjusting assembly and a fertilization gun, a power device is arranged on the vehicle body, the vehicle body is driven by the power device to advance, and a handrail is fixedly arranged on the back of the vehicle body; the chemical fertilizer boxes are symmetrically and fixedly arranged on the two sides of the vehicle body, through holes are formed in the bottoms of the chemical fertilizer boxes, the through holes in the bottoms of the chemical fertilizer boxes are communicated with the fertilizer distributors, and the fertilizer distributors are used for quantitatively measuring chemical fertilizers; the bottom of the fertilizer distributor is communicated with the mixer; the fertilization angle adjusting assembly is arranged at the bottom of the vehicle body; the fertilization angle adjusting assembly is used for adjusting the fertilization angle; the fertilizing gun is mounted on the fertilizing angle adjusting assembly.

The utility model relates to the field of pipe gallery construction equipment, in particular to a height adjusting structure for pipe gallery trolley construction, which is used for realizing the construction efficiency of an underground comprehensive pipe gallery hydraulic formwork trolley in an occasion with a larger sinking section or a larger construction longitudinal slope through a height-adjustable suspension plate, and comprises a T-shaped suspension steel structure and a U-shaped base steel structure, the bottom of the suspension steel structure is connected with the top of the base steel structure through a bearing inhaul cable, the two sides of the suspension steel structure are connected with the two sides of the base steel structure through limiting inhaul cables respectively, and the suspension steel structure comprises at least three pulley blocks. The bottoms of the limiting inhaul cables on the two sides of the suspension steel structure are wound around the second pulley block and the third pulley block correspondingly, and the pulley blocks are both connected with a motor. The utility model is especially suitable for the trolley construction occasion with a sinking section or a large construction longitudinal slope.

The utility model relates to an eyelash extraction device for ophthalmology medical care in the technical field of ophthalmology nursing, which comprises distraction tweezers and action tweezers, the outer side of the surface of the end part of the distraction tweezers is fixedly connected with a fixed limiting mechanism, the end part of the distraction tweezers is movably connected with a movable action mechanism, the end part of the distraction tweezers is provided with a mounting through hole, and the mounting through hole is communicated with the action mechanism. Fixing through holes are formed in the other ends of the distraction tweezers and the other ends of the acting tweezers, connecting ropes are movably connected to the inner sides of the fixing through holes, and the distraction tweezers, the fixing limiting mechanism and the movable acting mechanism are arranged, so that the movable acting mechanism can be connected with the distraction tweezers under the limitation of the fixing limiting mechanism; according to the eyelid removing glove, the movable action mechanism can be bonded with the eyelids of a patient, meanwhile, the eyelids are opened under the elasticity of the opening tweezers, eyelashes can be removed through the action tweezers at the moment, and the situation that the eyelids are opened manually, so that the eyelids are prone to sliding relative to the glove, and inconvenience is caused is avoided.

The invention provides an ulna olecranon osteotomy guide plate, and relates to the technical field of medical instruments, the ulna olecranon osteotomy guide plate comprises a strip-shaped positioning plate, a fixing mechanism is mounted at the top of the strip-shaped positioning plate, an adjusting mechanism is mounted at the bottom of the strip-shaped positioning plate, a guide mechanism is mounted on the front side of the strip-shaped positioning plate, and the fixing mechanism comprises a positioning block; the positioning mechanism comprises a positioning block, protruding blocks are fixedly connected to the two sides of the positioning block, L-shaped first anti-disengaging blocks are fixedly connected to the positions, close to the top, of the two sides of the protruding blocks, first circular kirschner wire positioning holes are formed in the opposite side faces of the first anti-disengaging blocks in a penetrating mode, the adjusting mechanism comprises a moving block, and sliding adjusting blocks are fixedly connected to the two sides of the moving block; by means of the design, V-shaped osteotomy guiding can be effectively conducted on the ulna olecranon operation, and therefore the success rate of the ulna olecranon osteotomy operation is effectively guaranteed.

The utility model discloses a launching rack which comprises a launching platform (31), a rear supporting assembly (3) and a front supporting assembly (4). The front supporting assembly (4) is used for bearing a front supporting point of the aircraft; the rear supporting assembly (3) is used for bearing a rear fulcrum of the aircraft and limiting the rear fulcrum; the front supporting assembly (4) is hinged to the launching platform (31). A spring assembly (5) is arranged between the launching platform (31) and the front supporting assembly (4), and when the front supporting assembly (4) is in the vertical state, the spring assembly (5) provides acting force enabling the front supporting assembly (4) to rotate in the launching direction of the aircraft in the free state. When the unmanned aerial vehicle is separated from the launching rack, the front supporting assembly (4) is rapidly pulled to the horizontal state and locked through the spring assembly (5) arranged between the launching platform (31) and the front supporting assembly (4), and interference and collision between the unmanned aerial vehicle and the front supporting assembly are effectively avoided.

The invention relates to the technical field of dry-type transformers, and discloses an energy-saving dry-type transformer which comprises a plurality of coil windings, a plurality of contact columns are alternately arranged on the coil windings, and the energy-saving dry-type transformer further comprises gear adjusting units which are arranged on the coil windings and used for connecting any two staggered adjacent contact columns. An auxiliary adjusting unit is arranged on the gear adjusting unit, and the gear adjusting unit comprises an annular clamping groove formed in the column wall of the contact column. According to the energy-saving dry-type transformer, two sliding blocks slide on a connecting rod, under the cooperation of a second spring, two limiting blocks slide on the cavity wall of a pressing cavity, the limiting blocks and limiting grooves are clamped or separated, arc-shaped calipers are limited, and gear adjustment of a coil winding can be completed; according to the gear adjusting device, the tightening bolt does not need to be frequently unscrewed for gear adjustment, so that the gear adjusting efficiency is higher, the gear adjusting unit of the transformer is not prone to being damaged, and the gear adjustment of the transformer is more convenient.

The utility model discloses a table board sliding adjusting mechanism and a study table and chair, the table board sliding adjusting mechanism comprises a table board, and the bottom of the table board is provided with a sliding rail with a U-shaped cross section; the supporting plate is provided with a sliding block, and the sliding block is in sliding fit with the sliding rail; wherein the top of the sliding block is provided with a rib arranged along the sliding direction, and the bottom of the sliding block is provided with a rolling body. According to the table board sliding adjusting mechanism, the sliding rails and the sliding blocks are arranged to form a linear guiding structure, and stable guiding and supporting are provided for the table board; the rib design and the rolling body are matched to reduce frictional resistance, and adjustment is smoother; the structure is simple and easy to manufacture.

The invention relates to the technical field of paper product production, and discloses a paperboard cutting machine for paper product production, which comprises a machine body, a conveyor belt is arranged on the machine body, a dust removal mechanism is arranged on the machine body, and the dust removal mechanism comprises a dust collector, a hollow pipe, a rotary drum, a first motor, a first rotary rod, a first electric push rod, a clamping block, a cross, a transverse plate and a brush. Dust on the top of a paperboard can be cleaned by arranging a first motor, a first rotating rod, a first electric push rod, a cross, a transverse plate and a brush, adjustment can be conducted according to the thickness of the paperboard by arranging a second rotating rod, a rotary knob and a threaded block, the brush can make close contact with the top of the paperboard, and then the brush can clean dust more stably; and by arranging a dust collector, a hollow pipe, a rotary drum and a dust collection opening, dust on the paperboard can be absorbed, so that the situation that the focus position is inaccurate due to scattering of laser beams caused by existence of dust particles is avoided, and the precision of paperboard laser cutting is improved.

The utility model discloses a roller group for an automobile production line, which relates to the technical field of automobile production lines and comprises an automobile production line support frame, movable openings are formed in two sides of the automobile production line support frame, guide grooves are formed in two sides of the automobile production line support frame, and support roller components are mounted on the inner sides of the movable openings. The supporting rod assembly comprises a supporting ring movably installed on the inner side of the movable opening, a bearing ring is installed on the inner side of the supporting ring, and a shaft rod assembly is installed on the inner side of the bearing ring. The fixing plate on the inner side is fixed by connecting the telescopic rod and the automobile production line supporting frame, the fixing plate supports the telescopic rod on the top, it is guaranteed that the height of the telescopic rod can be adjusted stably, the telescopic rod stretches and retracts to drive the supporting table at the top end to move up and down, the supporting table moves up and down, and height adjustment of the supporting table is used for adjusting the height of the roller shaft. And equipment can be conveniently adjusted as required.

The invention discloses an air conditioner compressor frequency control method based on gradient descent, and the method comprises the steps: carrying out the data preprocessing of the operation IOT data of an air conditioner, so as to guarantee the quality and availability of the data; the change of the indoor temperature is predicted through cooling curve fitting; and determining the compressor frequency according to curve gradient calculation. The operation frequency of the air conditioner compressor can be adjusted in real time, and it is ensured that the system can keep excellent robustness and stability under various environment changes. The start-up frequency and the operation frequency are intelligently adjusted through a self-adaptive mechanism, it is ensured that the air conditioner system always operates in the most energy-saving mode, and the energy consumption performance is optimized. The running frequency of the compressor is dynamically controlled by combining real-time prediction of the indoor temperature and gradient analysis of the cooling curve. According to the method, the energy efficiency is improved, the indoor temperature can reach the set value more smoothly by continuously optimizing the operation curve, and the comfortable experience of a user is enhanced.

The invention discloses thin film deposition equipment based on a target material consumption automatic compensation function, and relates to the technical field of thin film deposition, the thin film deposition equipment comprises a thin film deposition equipment main body and a controller, a box body is arranged outside the thin film deposition equipment main body, and a vacuum bin and the controller are installed in the box body; a bearing table and multiple sets of target limiting assemblies are installed in the vacuum bin, a driving motor and multiple sets of magnets are arranged above the vacuum bin, a supporting platform and a base table are installed at the bottom in the vacuum bin, an adjusting assembly and an air supply assembly are installed at the bottom of the supporting platform, the adjusting assembly is connected with the bearing table, and target blocks are arranged between the target limiting assemblies. The target material block is matched with the driving motor, a plurality of groups of detection assemblies are installed in the vacuum bin, the detection assemblies are matched with the driving motor and the adjusting assembly respectively, and the detection assemblies can detect the surface of the wafer, so that when the device is used, the air supply assembly and the target material can be complemented according to the condition presented by the wafer.

The invention relates to the technical field of power distribution network dispatching, and particularly discloses a power distribution network comprehensive optimization coordinated dispatching method and system based on mobile energy storage. The method comprises the following steps: firstly obtaining coordination information of mobile energy storage and the power distribution network, then obtaining mobile energy storage performance parameters according to mobile energy storage access information, obtaining a stable operation value of the power distribution network through the coordination information, and judging whether the stable operation value of the power distribution network is greater than a preset threshold, if so, judging that the power distribution network is in a stable state, and if not, judging that the power distribution network is in a stable state. If yes, it is judged that the power distribution network is in a load state, the discharging electric quantity is obtained according to the surplus electric quantity and the discharging power, and the mobile energy storage conducts discharging voltage-stabilizing scheduling on the power distribution network according to the discharging electric quantity; in this way, the fluctuating load curve can be adjusted to be stable through mobile energy storage charging and discharging scheduling, and load fluctuation is reduced, so that the voltage of the power distribution network is kept stable.

The utility model discloses a hydraulic oil pump coupling coaxiality adjusting device, and relates to the technical field of coaxiality adjustment. Comprising a hydraulic oil pump base, an oil pump arranged at one end of the hydraulic oil pump base, a motor base arranged at the other end of the hydraulic oil pump base, a driving motor installed on the motor base, and a coupler connected with the output end of the driving motor and a connecting shaft of the oil pump. The throw measuring assembly is arranged on the coupler and used for measuring the radial and axial throw of the coupler, and the coaxiality adjusting assembly is used for adjusting the transverse and longitudinal positions of the motor base so as to adjust the coaxiality of the coupler. When the motor base is transversely adjusted, according to data measured by the radial dial indicator and the axial dial indicator at the position of the coupler, the first dial indicator is adopted to accurately monitor the movement condition of the motor base while the transverse adjusting jack is used for adjustment, inaccurate adjustment and repeated adjustment are avoided, and the coaxiality deviation of the coupler of the pressure oil pump is small after adjustment is completed.

The utility model relates to the technical field of equidistant drilling, in particular to an equidistant construction drilling device with a measuring function, which comprises a base, a rotating cross rod and an equidistant component, the rotating cross rod is arranged on one side of the base and is used for adjusting the angle between the equidistant component and the horizon, and the equidistant component is used for adjusting the angle between the equidistant component and the horizon. The equidistant assembly comprises two toothed bars, tooth grooves are formed in the adjacent sides of the two toothed bars, a drilling motor is installed at one end of one toothed bar, a positioner is installed at the end, away from the drilling motor, of the other toothed bar, the positioner is used for determining the distance between the positioner and the drilling motor, the two toothed bars are meshed with a driving gear through the tooth grooves, and the two toothed bars are meshed with the driving gear through the tooth grooves. And the driving gear is mounted on an output shaft of the adjusting motor. The drilling distance can be rapidly and stably adjusted, equidistant drilling can be completed in a non-horizontal state, meanwhile, the accurate drilling height can be adjusted according to actual requirements, and the device is more accurate and more convenient to operate.

The utility model relates to an aluminum veneer cutting device which comprises a cutting table and a cutting machine, the cutting machine is fixedly connected below a sliding seat through an electric telescopic rod, the sliding seat is in sliding connection with a sliding rod through a rail wheel, a lead screw in threaded connection with the sliding seat is arranged below the sliding rod, and the two ends of the sliding rod are fixed to the upper ends of supporting columns. The lower ends of the supporting columns are installed on supporting plates through adjusting bases. The supporting plates are fixedly connected to the two sides of the cutting table. According to the cutting device, the position of the cutting machine can be accurately adjusted through cooperation of the adjusting base and the sliding base, the limiting unit is used for assisting the cutting machine, aluminum veneers are prevented from jumping along with the cutting machine, the cutting precision is improved, and the product quality is guaranteed.

The invention discloses a piezoelectric motor and a camera module, and belongs to the technical field of camera modules. The piezoelectric motor comprises a fixed frame, a movable carrier, a driving assembly and a supporting assembly, the movable carrier is movably arranged on the fixed frame, the driving assembly is connected with the fixed frame and abuts against the movable carrier at the same time, and the supporting assembly is arranged between the fixed frame and the movable carrier. The supporting assembly is matched with the driving assembly to enable the movable carrier to be supported on the fixed frame, and the driving assembly and the supporting assembly are arranged on the same side of the piezoelectric motor. The camera module comprises the piezoelectric motor, a lens assembly arranged in the piezoelectric motor, and a photosensitive assembly arranged opposite to the lens assembly. The method has the advantages that the risk that the movable carrier inclines relative to the fixed frame is reduced, the supporting assembly is prevented from being stuck, and the photographing effect is improved.

The invention relates to the technical field of photovoltaic supports, and discloses an adjustable flexible photovoltaic support for a large-gradient mountainous region. The wind power generation device comprises two steel cable supports and two bearing cables erected on the two steel cable supports, each steel cable support comprises a frame-shaped support, a V-shaped wind plate is movably arranged on each frame-shaped support, a transverse frame is movably arranged at the top of each frame-shaped support, a first steel cable frame and a rotatable second steel cable frame are arranged on each transverse frame, and the first steel cable frames and the second steel cable frames are arranged on the first steel cable frames. The second steel cable frame is provided with two lifting ropes which are in cross connection with the V-shaped wind plate, so that when the photovoltaic panel on the bearing cable inclines towards one side under the influence of wind power, the V-shaped wind plate is also influenced by the wind power, and the second steel cable frame is driven by the corresponding lifting ropes to carry out counter-pulling adjustment on the bearing cable. According to the invention, counter pulling of the bearing cable can be realized by means of wind power in strong wind weather, so that stability adjustment of the flexible photovoltaic support in strong wind weather is realized.

The invention relates to the technical field of image processing, in particular to a training method of a semantic segmentation model and a semantic segmentation method and device. Comprising the following steps: acquiring and preprocessing tree-containing images, and constructing an image set; carrying out image segmentation based on a U-Net architecture, wherein the U-Net architecture comprises an encoder, a decoder and a jump connection; based on Dice coefficient loss and weighted cross entropy loss, determining a total loss function to optimize image background and tree category imbalance; the learning rate is adjusted in each training step through an Adam optimizer in combination with gradient first-order moment estimation and gradient second-order moment estimation, and learning rate attenuation adjustment of the Adam optimizer is achieved in combination with cosine annealing scheduling; and training the semantic segmentation model based on the configured Adam optimizer and cosine annealing scheduling until the semantic segmentation model is obtained through convergence. Therefore, based on the obtained semantic segmentation model, subsequent image segmentation processing application in an education robot can be facilitated.

The invention discloses a variable radial plunger pump, and relates to the technical field of plunger pumps, the variable radial plunger pump comprises a first shell and a second shell which are fixed through bolts, the interiors of the first shell and the second shell are sealed to define a sealing cavity, the variable radial plunger pump further comprises an eccentric mechanism, the eccentric mechanism comprises an eccentric wheel and a clamping shaft, and the eccentric wheel is located in the sealing cavity; a sliding clamping block is in sliding connection in the radial direction, a driving assembly is fixedly connected, and the output end of the driving assembly is in threaded connection with the sliding clamping block. The eccentric distance between the eccentric wheel and the clamping shaft can be adjusted, when the eccentric wheel eccentrically rotates, the stroke of the piston column is controlled in cooperation with the spring pipe, oil pumping work of hydraulic oil of different flows is conveniently conducted, and the power of the plunger pump is rapidly adjusted; the lifting column is controlled to stretch into and draw out of the fixing pipe so as to control the size of the oil pumping working area, namely the negative pressure space, in the fixing pipe, and adjustment in a larger range can be conducted in cooperation with work of the eccentric mechanism.

The invention provides an anti-frosting control method, device and equipment of a cooling system and a vehicle, the anti-frosting control method of the cooling system is applied to the vehicle, the cooling system comprises an evaporator and a cooling assembly, and the method comprises the steps that whether the cooling system has a frosting risk or not is detected according to environment parameters of the vehicle and operation parameters of the cooling system; if the cooling system has the frosting risk, demand parameters of a cooling assembly are determined according to the real-time difference value of the actual temperature and the target temperature of the evaporator; and controlling the cooling assembly according to the demand parameters of the cooling assembly. The running state of the cooling assembly can be dynamically adjusted, frosting is effectively restrained, extra bad perception of a user cannot be caused, the balance state can be maintained for a long time, and the NVH performance of the whole vehicle is prevented from being affected by frequent adjustment.

The invention discloses a steering device capable of adjusting the orientation of a photovoltaic solar panel, and particularly relates to the technical field of photovoltaic power generation, the middle part of the upper end of a base is rotatably connected with a fixing mechanism, the upper part of the fixing mechanism is symmetrically provided with contraction mechanisms, and the two contraction mechanisms are jointly and fixedly connected with three photovoltaic panels; a transmission mechanism is fixedly connected to the front side of the upper end of the base, and cleaning mechanisms are symmetrically arranged at the upper end of the base. According to the steering device capable of adjusting the orientation of the photovoltaic solar panel, the effect that the photovoltaic panel always faces the sun is achieved through cooperation of the fixing mechanism and the transmission mechanism, meanwhile, smooth and impact-free rotation can be achieved when the angle of the photovoltaic panel is adjusted, and similarly, the steering effect is good. The surface of the photovoltaic panel is cleaned before the photovoltaic panel is folded through cooperation of the contraction mechanism and the cleaning mechanism, so that the surface of the photovoltaic panel can be protected from being scratched or broken in extreme weather while the photoelectric conversion efficiency is prevented from being reduced by dust and dirt accumulated on the surface.