27results about How to "Avoid frequent adjustments" patented technology

The invention relates to a path planning method of a photovoltaic robot, the photovoltaic robot, equipment and a medium, and the method comprises the steps: setting a distance between adjacent paths according to a machine cleaning performance index, generating an internal cleaning path based on a photovoltaic plate map and the distance between the adjacent paths, and discretizing the internal cleaning path into a plurality of path points with expected poses; an acceptance path point is arranged on each sub-cleaning path of the internal cleaning path, and parameters of the acceptance path points comprise an expected cleaning area; executing an internal cleaning path, monitoring a pose error between an actual pose and an expected pose in real time, and determining a cleaning performance error according to an actual cleaning area and an expected cleaning area; when the pose error is greater than the pose tolerance threshold or the cleaning performance error is less than the cleaning tolerance threshold, a target internal cleaning path is generated and executed based on the pose error and / or the cleaning performance error. The execution speed and the cleaning efficiency of the photovoltaic robot on the cleaning path are improved, and meanwhile it is ensured that the cleaning quality reaches the expected standard.

The invention discloses a tension servo control method and system suitable for multiple scenes, and belongs to the technical field of tension servo control. Comprising the following steps: respectively installing a tension sensor and an encoder at specified positions based on structural characteristics of an execution mechanism, simultaneously acquiring a pressure signal # imgabs0 # of the tension sensor and a pulse signal generated by the encoder at a specified frequency, and converting the pressure signal # imgabs1 # into a digital signal to obtain a current tension value # imgabs2 #; based on the pulse signal, rotating speed conversion is carried out to obtain the current rotating speed # imgabs3 # of the tension roller, the current rotating speed # imgabs4 # is combined, a rolling diameter calculation formula is utilized to obtain the current rolling diameter # imgabs5 #, PID parameters are dynamically adjusted by adopting the current rolling diameter # imgabs6 #, and a self-adaptive fuzzy algorithm is constructed; and the current tension value # imgabs7 # and the current rotating speed # imgabs8 # serve as input, and a control variable # imgabs9 # is obtained through calculation. The tension control system is different from a tension control system based on a PLC in the prior art, signal identification and data output are directly carried out through the encoder, the PLC scanning period is omitted, and the control efficiency is improved.

The utility model discloses a deburring mechanism for metal processing. The deburring mechanism comprises a workbench, an operation box is fixedly installed at the top of the workbench, a clamping mechanism for fixing a workpiece is arranged on the operation box, an adjusting mechanism is arranged on the operation box, a first motor is arranged on the adjusting mechanism, and a polishing wheel is detachably installed at the output shaft end of the first motor. The polishing device is reasonable in design and good in practicability, workpieces of various sizes can be clamped and fixed, the application range of the device is widened, the polishing wheel can be conveniently controlled to be adjusted front and back and left and right, the polishing range is greatly expanded, the situation that the positions of the workpieces are frequently adjusted when multiple burrs on the to-be-machined faces of the workpieces are polished is avoided, time is saved, and production efficiency is improved. And when the workpiece is polished, scrap iron generated by polishing can be sucked and collected, the scrap iron is prevented from flying around, and the risk that the scrap iron accidentally hurts an operator is reduced.

This invention relates to the field of household appliance technology, and discloses a control method and a garment processing device. The garment processing device has a display screen with an adjustable display position. The control method includes the following steps: detecting whether a user is moving within a preset area; when user movement is detected within the preset area, determining whether the user's movement target is the current garment processing device; if so, acquiring user information and controlling the display screen to adjust to a preset display position corresponding to the user information; if not, the display screen maintains its initial position. That is, when a user is present in the preset area, the display screen is only controlled to adjust its display position when the user's movement target is determined to be the current garment processing device. This prevents frequent adjustments to the display screen due to misjudgment, reducing the failure rate. Adjusting the display position according to user information allows the display screen to be positioned optimally for the user to view and operate, improving user convenience.

The invention relates to the field of sheet pile construction, in particular to a tensioning system based on the piling construction process of a U-shaped sheet pile. The state judgment module is used for determining the sheet pile offset state according to the offset balance degree and the dynamic offset degree and determining the interval number setting mode according to the sheet pile offset state; the period analysis module is used for determining the number of tensioning intervals according to the comprehensive deviation degree; the attitude analysis module is used for determining an attitude change state according to the inclination angle change rate and the track convergence degree of the U-shaped sheet pile; the tensioning control module is used for determining a tensioning strategy according to the posture change state; the deviation correction judgment module is used for determining fixed deviation correction force according to the pile sinking resistance variation value; the tensioning device effectively improves the tensioning effect.

The utility model provides a baffle plate for a material-sputtering-resistant crusher, belongs to the technical field of crushers, and aims to solve the problems that the position of the baffle plate needs to be manually adjusted during feeding each time, so that the labor burden of workers is large, and the use effect is poor. Comprising a gravel feeding hopper, a reciprocating driving motor, a first protection plate, a second protection plate, a position adjusting lead screw and a transmission mounting rotating shaft. The gravel feeding hopper is fixedly connected to the upper part of the crusher main body; the reciprocating driving motors are in bolted connection with the front and rear sides of the crusher main body; the first protection plate is slidably connected to the upper portion of the crusher body. The second protection plate is slidably connected to the upper portion of the crusher body. The position adjusting lead screws are rotationally connected to the front side and the rear side of the crusher body. The transmission mounting rotating shafts are rotationally connected to the front and rear sides of the crusher main body; the use effect of the baffle plate is improved, the inconvenience of manually adjusting the position of the baffle plate is avoided, the labor burden of workers is reduced, and a large amount of time is saved.

The municipal water supply and drainage pipeline connector comprises a left connecting part, a right connecting part and a connecting part between the left connecting part and the right connecting part, the connecting part comprises a corrugated pipe section, middle flanges are arranged at the two ends of the corrugated pipe section respectively, and a plurality of sets of spacing adjusting assemblies are arranged between the two middle flanges; the left connecting part comprises a left connecting section, a left connecting flange is arranged at the end, away from the connecting part, of the left connecting section, and a left flange sealing gasket is arranged on the outer end face of the left connecting flange. The right connecting part comprises a right connecting section, a right connecting flange is arranged at the end, away from the connecting part, of the right connecting section, and a right flange sealing gasket is arranged on the outer end face of the right connecting flange. The pipeline joint is reasonable in structural design, the length of the pipeline joint can be adaptively adjusted according to needs so as to meet the connection requirements of two pipelines, the construction process is simplified, the operation of frequently adjusting the connected pipelines is avoided, and the working efficiency is improved.

The application belongs to the technical field of wireless communication, and is especially a pinch antenna system (PASS) assisted downlink communication resource allocation method and system. The method comprises the following steps: S101: constructing a system model; S102: establishing a double-time scale optimization problem with the goal of maximizing the long-term average system sum rate; S103: constructing a resource optimization framework; S104: performing transmission resource optimization according to the number of medium waveguides in the system; S105: constructing a sample average approximation target of the long-term average system sum rate based on multiple small-scale fading samples; and S106: updating the PA deployment position based on the long-term average performance index until the convergence condition is met or the maximum number of iterations is reached. The application can avoid frequent adjustment of the pinch antenna position, thereby effectively reducing the system implementation complexity and calculation overhead, significantly improving the long-term average sum rate and multi-user communication performance of the system, improving the transmission quality of users, and having good engineering application value.

The utility model relates to a clean bench for tissue culture test, which relates to the technical field of plant test, and comprises a bench body, an adjusting arm is fixedly arranged on the bench body, a spherical joint is arranged at the end part of the adjusting arm, a mounting rack is arranged on the spherical joint, a conveying component is arranged in the mounting rack, and a plurality of amplifying components distributed at equal intervals are arranged on the conveying component. The conveying assembly is used for switching the corresponding amplification assembly to the position above the test samples, so that a single test sample is observed through the amplification assemblies with different multiplying power or multiple groups of test samples are compared and observed at the same time. The conveying assembly of the workbench can rapidly switch the amplification assemblies with different multiplying powers, a tester does not need to frequently replace a magnifying lens body, for a test needing to observe multiple sets of samples at the same time, different amplification assemblies can be rapidly moved to the position above the corresponding samples, synchronous comparison and observation of the multiple sets of samples are achieved, and the test efficiency is greatly improved.

The invention discloses a direct blowing type boiler variable load fuel system with an external coupling powder bin and a method, and belongs to the technical field of thermal power generation equipment. The device comprises an external coupling powder bin, wherein the effective volume of the external coupling powder bin is configured to meet the pulverized coal consumption of 5-10 minutes under the rated load of a boiler; the combustion regulation and control unit comprises at least one independent combustor independent of a boiler main combustor. The central controller is in signal connection with the direct-blowing pulverizing unit, a material level monitoring module of the external coupling powder bin, the combustion regulation and control unit, and a regulating valve and a pulverized coal feeding device in the pulverized coal blending pipeline unit; the central controller is used for receiving boiler load signals and boiler combustion state feedback and conducting dynamic regulation and control. Through cooperative configuration of the small-capacity external coupling powder bin and the independent combustor and intelligent regulation and control of the central controller, the technical problems that load response of the direct-fired boiler is lagged and low-load stable combustion is difficult are solved, and rapid, stable and efficient operation under all working conditions is achieved.

The invention provides an air conditioner control method and an air conditioner. According to the method, after a compressor is controlled to operate according to a PID control method, frequency change data of the compressor are recorded, whether the compressor enters a steady-state oscillation stage or not is judged according to the frequency change data, if yes, the compressor frequency in the steady-state oscillation stage is averaged, and the steady-state frequency fstep is obtained; and the frequency of the compressor is adjusted to be the steady-state frequency fstep for operation, so that frequent adjustment of the compressor is avoided, and energy consumption is reduced. In addition, due to the fact that the steady-state oscillation frequency is adopted for calculation, the accuracy of indoor temperature control is improved, and temperature fluctuation is reduced. And when the temperature is close to the target temperature, through a strategy of adjusting the frequency of the compressor to be the steady-state frequency fstep, rapid temperature fluctuation is avoided, and rapid and stable temperature response is realized.

The utility model discloses PCBA (printed circuit board assembly) three-proofing glue spraying equipment which comprises a working shell with a plurality of fixed bases, a transparent observation window is arranged on the working shell, working openings are arranged on two side walls of the working shell, a working cavity is arranged in the working shell, a working hinge is fixedly connected onto the inner wall of the working cavity, and the working hinge is fixedly connected onto the inner wall of the working cavity. The other end of the working hinge is fixedly connected with a spraying gun, a working screw rod is rotationally connected into the working cavity, one end of the working screw rod penetrates through the working shell, a working sliding rod is further fixedly connected into the working cavity, a working sliding block is slidably connected to the working sliding rod, and the working sliding block is in threaded connection with the working screw rod; the end, away from the working sliding rod, of the working sliding block is connected with a containing frame through a rotating assembly, and the end, close to the containing frame, of the working sliding block is provided with an auxiliary cavity. According to the utility model, comprehensive spraying can be carried out on a larger circuit board, and the spraying effect is improved.

The utility model relates to molten salt energy storage heating technology field especially through medium circulation output heating's molten salt heat storage heat exchange system. Through medium circulation output heating's molten salt heat storage heat exchange system includes electric heating molten salt energy storage device, and electric heating molten salt energy storage device includes molten salt heat storage jar, molten salt, electric heating device, power supply, and the molten salt is stored in molten salt heat storage jar, and molten salt heat storage jar is configured electric heating device, and is immersed in the molten salt in molten salt heat storage jar. The heat exchange device of large -scale innovative structure is directly configured in molten salt heat storage jar, and constitutes energy storage heat exchange integrated energy storage, heat exchange, no molten salt pump circulation output heating system, realizes the simple energy storage heating output independent unit system of no molten salt circulating pump and high temperature molten salt heat exchanger.

The application discloses a low-cost voltage control and regulation circuit for fast response to voltage dip, and in particular solves the problems of excessive influence of on-chip response to voltage dip on system performance and poor flexibility, and belongs to the technical field of basic electronic circuits.The circuit comprises a voltage monitoring unit, a current prediction unit, a voltage loop controller, a current loop controller, a clock gating circuit and a performance-aware voltage controller, and through a full-closed loop and double-loop architecture, the voltage is adjusted in real time, and the performance cost during the adjustment is greatly reduced; the voltage loop controller and the current loop controller are jointly used, different control parameters are used to respectively fit frequency adjustment amounts corresponding to the voltage and the current, and a flexible double-closed loop control strategy is realized; the clock gating circuit is used to process the frequency adjustment amount, and the working frequency of a controlled object is quickly controlled through clock enabling; and the performance-aware voltage controller and the clock gating circuit are jointly used, so that the purpose of simply and efficiently resisting voltage dip is realized.

The application discloses a power coordination control method of a charging system and relates to the technical field of charging piles, and comprises the following steps: S1: acquiring three-phase voltage of a power grid in real time, obtaining three-phase safe voltage of the power grid through the three-phase voltage of the power grid, acquiring a maximum allowable working current, acquiring a power factor, obtaining a maximum power limit value of a PCS through the three-phase safe voltage of the power grid, the maximum allowable working current and the power factor; when a charging gun is converted from slow charging to fast charging and proposes a power up-regulation request, whether there is a power up-regulation space is judged through a total output power and the maximum power limit value of the PCS, so that different power up-regulation strategies are formulated according to the size of the up-regulation space, which is beneficial to avoiding PCS overcurrent faults caused by uncontrollable sequences of power adjustment, and is also beneficial to improving the safety of power adjustment, so that circuit oscillation is smaller and more stable and safe.

The four-wheel electric vehicle plastic part machining device comprises a bin body assembly, a driving mechanism, a supporting assembly, a paint spraying mechanism, a water spraying pipe and a linkage mechanism, the driving mechanism is arranged on the supporting assembly, and the supporting assembly is connected with the bin body assembly; the paint spraying mechanism is arranged on the bin body assembly and comprises a driving source, a rotating assembly and a paint spraying assembly, the driving source is installed on the bin body assembly, the rotating assembly is rotatably installed at the top of the bin body assembly and connected with the output end of the driving source, and the paint spraying assembly is installed on the rotating assembly and penetrates through the rotating assembly; and the sprinkling pipe is communicated with the bin body assembly. Therefore, the moving track of the paint spraying device can be prevented from being frequently adjusted in the paint spraying process, the labor burden of workers is relieved, the paint spraying efficiency of plastic parts is effectively improved, and meanwhile it is ensured that paint spraying operation can be continuously and stably conducted.

The present invention discloses a packaging bag printing device with a deviation correction function and a deviation correction method, which relate to the technical field of packaging bag related equipment, and include a base, a U-shaped frame is fixedly installed on one side of the top of the base, a movable plate is arranged at the lower part of the U-shaped frame, and a hydraulic push rod is fixedly installed on the top of the U-shaped frame, and the movable plate is fixedly connected to the movable end of the hydraulic push rod, and two groups of guide rods are symmetrically installed on the top of the movable plate, and the two groups of guide rods are slidably connected to the U-shaped frame, and a printing mechanism is arranged on one side of the inner part of the movable plate; so that the packaging bag can be corrected during the printing process, and the tensioning wheel can be driven to rise as the deviation correction proceeds during the deviation correction process, so that the packaging bag can be tensioned during transportation, so as to avoid the roll from becoming loose during the unwinding process, avoid frequent adjustment of the packaging bag position due to the looseness, and avoid affecting the printing accuracy of the packaging bag.

The invention discloses a step plane parallelism detection device and a detection method thereof.The step plane parallelism detection device comprises a base used for supporting and a sample piece to be detected located above the base, the sample piece to be detected is provided with a first step plane and a second step plane, the first step plane is a reference plane of the sample piece to be detected, and the second step plane is a plane to be detected; a rotating structure for driving a tested sample to rotate is arranged on the base, a base surface structure for providing a supporting surface for the rotating structure is arranged on the base, and the base surface structure is matched with the rotating structure for use; according to the invention, the reference surface of the tested sample piece is used as an actual reference surface during testing, only another plane is tested during testing, the position of the tested object is prevented from being frequently adjusted, the measurement error can be further reduced, and when the device is used for testing, only the tested sample piece does axis motion, the test track is a circle, and the motion only generates a circle surface parallelism error, so that the test accuracy is improved. Jumping errors caused by planar motion in the prior art cannot be generated.

The invention relates to the technical field of wind power blade treatment, in particular to burr treatment equipment for a wind power generation blade. The device comprises a main body support, the bottom of the main body support is fixedly connected with a supporting base, the bottom of an inner cavity of the main body support is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a plurality of connecting columns, and the top of the main body support is provided with a driving fixing device; a fan-shaped frame similar to the fan blades in shape is fixedly connected to the inner wall of the main body support, a containing plate used for containing the fan blades is fixedly connected to the top of the connecting column, and the containing plate is located in an inner cavity of the fan-shaped frame. The fan-shaped frame is arranged to be fan-shaped, and the rack is attached to the radian of the inner wall of the fan-shaped frame and slides on the inner wall of the fan-shaped frame, so that the rack can drive the sand disc to move on the surface of the blade, burrs on the surface of the blade are removed, frequent adjustment of the position of the blade is avoided, and the blade is attached to the sand disc.

The utility model relates to the technical field of pipeline machining, in particular to a multi-angle pipeline drilling device which comprises a working table, a through groove is formed in the middle of the working table, a bearing device is installed in the through groove, rotatable clamping devices are arranged at the two ends of the working table respectively, sliding grooves are formed in the two sides of the working table, and the clamping devices are arranged in the sliding grooves. A sliding groove is formed in the upper portion of the supporting frame, a sliding block is arranged in the sliding groove, lifting devices are installed on the sliding block, a drilling machine body is rotationally arranged between the two lifting devices and located above the supporting frame, and angle indicating devices are arranged on the lifting devices and synchronously rotate along with the drilling machine body. The end of the rotating rod is fixedly connected with the pointer, when the rotating rod drives the drilling machine body to rotate, the pointer can synchronously rotate along with the rotating rod, the dial is fixedly installed in the installation position, when the pointer rotates, the pointer can clearly indicate the rotating angle of the drilling machine body driven by the rotating rod on the dial, and the drilling angle can be accurately controlled.

The invention discloses a gradient ternary positive electrode material and a preparation method thereof, and relates to the field of battery positive electrode materials and preparation methods thereof, the positive electrode material is a cobalt gradient positive electrode material of which the internal cobalt content is higher than the external cobalt content, and the cobalt gradient positive electrode material is prepared from NiSO4. 6H2O, CoSO4. 7H2O, MnSO4.H2O, a lithium salt and a cobalt-containing additive. The nucleating agent is prepared by taking the cobalt-containing additive as the ternary precursor, so that migration and separation of lithium ions in the positive electrode material can be facilitated, the capacity and the rate capability of the material are improved under high-rate and large-current conditions of a large-particle ternary positive electrode, meanwhile, the preparation process of a ternary precursor nucleation stage can be omitted, the preparation process flow is shortened, and the preparation cost is reduced. The production cost is reduced, and the purposes of being more convenient to control, simpler and more convenient and avoiding frequent adjustment of process parameters in the traditional gradient ternary precursor preparation process are achieved.

The utility model discloses a synchronous control valve and a synchronous control system for a lower-vehicle crawler track transfer oil cylinder of a crawler crane, which comprises the synchronous control valve for the crawler track transfer oil cylinder, the synchronous control valve for the crawler track transfer oil cylinder is positioned between an electromagnetic directional valve and a hydraulic lock, and the synchronous control valve for the crawler track transfer oil cylinder is provided with a one-way valve, a switching valve and a damper. The operation difficulty of track transfer is reduced, and the working efficiency is improved; the safety of track transfer movement of the track is improved, and the possibility of tipping of the whole vehicle is greatly reduced.

The utility model provides a lighting device for maintenance of a transformer substation, belongs to the technical field of maintenance lighting, and aims to solve the problem that dust attached to the outer sides of a universal hose and a lighting lamp can fall onto electrical elements in the transformer substation to affect heat dissipation of the electrical elements. Comprising a transformer substation box body, a transformer substation box door, a positioning connecting plate, a wire positioning strip, a first universal hose, a spotlight cover and an adapter. The plurality of transformer substation box doors are uniformly distributed and hinged to the front side and the rear side of the transformer substation box body; the positioning connecting plate is welded on the inner side surface of the substation box door; the wire positioning strips are adhered to the front and rear sides of the transformer substation box body; the first universal hose is fixedly connected to the lower end face of the positioning connecting plate. The spotlight cover is fixedly connected to the lower part of the first universal hose; the adapter is in threaded connection with the middle part of the spotlight cover; according to the utility model, the situation that dust is brought into the transformer substation when the lighting device is used is avoided, and the heat dissipation effect of electrical elements is effectively ensured.

The utility model relates to the technical field of height measurement, concretely relates to a 3D paving's height information acquisition system, including first positioning module, second positioning module, laser transmitter and laser receiver, the laser transmitter installs on the electric control rotating platform that can vertically rotate and adjust, and electric control rotating platform and first positioning module install on the intelligent paver, and with the first controller on intelligent paver electricity is connected, the laser receiver and second positioning module install on the electric control trolley, and with the second controller on electric control trolley electricity is connected, and the first controller and second controller are connected to central controller through first communication module and second communication module respectively. The utility model can improve the collection efficiency of height information, reduce construction time cost.

The utility model belongs to the technical field of electric power inspection, and particularly discloses a cable electric power inspection unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a mounting plate is fixedly arranged in the center of the lower side of a lower shell of the unmanned aerial vehicle body, a first motor is fixedly arranged in the center of the lower side of the mounting plate, supports are symmetrically and fixedly arranged on the two sides of the first motor, and a folding rod is arranged on the lower side of the first motor. A cylindrical central processing module is arranged on the lower side of the folding rod, a rectangular frame is arranged on the outer side of the cylindrical central processing module, a parabolic reflection focusing pot is coaxially and fixedly arranged at the lower end of the cylindrical central processing module, an opening of the parabolic reflection focusing pot is back to the cylindrical central processing module, and a fixing column is coaxially and fixedly arranged on the inner side of the parabolic reflection focusing pot. A spherical platform is coaxially and fixedly arranged at one end of the fixing column, and a lifting protection mechanism is arranged on the lower side of an arm of the unmanned aerial vehicle body. According to the utility model, defects of a traditional manual inspection mode are avoided, more efficient, safer and more accurate electric power inspection is realized, and safe and stable operation of an electric power system is guaranteed.

The invention relates to a method for connecting a memory chip and a substrate, which comprises a substrate, a chip mounted on the substrate, and a Pad position at the center of the chip, and comprises the following steps of: firstly, arranging and preparing an adapter plate according to the arrangement and the number of the Pad positions at the center of the chip, and arranging a conductive position I corresponding to the Pad positions on the adapter plate; attaching the adapter plate to the chip close to the side edge of the chip, wherein the conductive position I on the adapter plate is aligned with the position of the Pad; then the adjacent Pad positions on the chip are connected with the first conductive positions on the different adapter plates through routing, so that the routing directions of the adjacent Pad positions on the chip are opposite; and then, connecting the adapter plate with the substrate to form connection between the chip and the substrate. According to the invention, the length of a single wire is shortened, windowing of the substrate and packaging of a WLP copper layer on the surface of the chip are avoided, the operation space and the adjustment angle of the single wire on the chip are increased, the wire bonding reliability is improved, and the risk wire bonding probability is reduced. The invention further provides a packaging structure of the storage chip and the substrate.

The application discloses a kind of desulfurization oxidation wind automatic control method and system, comprising the following steps: the original flue gas flow is divided into multiple load intervals, the SO2 concentration of absorption tower entrance is divided into multiple sulfur fraction intervals, with original flue gas flow and entrance SO2 concentration as control variable, the reasonable demand range of oxidation air volume is determined by theoretical calculation and operation data, and the corresponding ladder corresponding relationship table is generated;Real-time acquisition of the original flue gas flow and absorption tower entrance SO2 concentration of desulfurization system;According to the current acquisition parameter matching to corresponding ladder interval.The application, maximization uses existing coal-fired power plant desulfurization system condition, in not additional increase system or equipment case, by design control logic, realize the automatic control of variable frequency desulfurization oxidation wind, simultaneously by establishing unit load and flue gas sulfur fraction joint control model, realize the ladder type automatic regulation of oxidation fan air volume, to reach the purpose of energy saving, stable operation.