644 results about "Constant speed" patented technology

The invention discloses a straight gear shape-free measurement method based on single-group line structured light. The method comprises the following steps: constructing an optical platform coordinate system, carrying out line structured light coordinate system calibration through a spherical calibration body, and calibrating the rotation center of a precision turntable; installing a measured straight gear, establishing a straight gear coordinate system, and adjusting the position of the linear structure optical measuring head, so that the measuring field of view of the linear structure optical measuring head covers a root circle to an addendum circle of the straight gear; the straight gear is installed on a precision rotary table, the straight gear is driven to rotate at a constant speed, a linear structure optical probe scans and collects straight gear contour point cloud data and circular grating angle information, and tooth surface three-dimensional point cloud data is obtained; based on the three-dimensional point cloud data of the tooth surface, extracting an addendum circle, a dedendum circle and an involute tooth profile, and calculating spur gear parameters; performing reverse three-dimensional shape modification tooth surface identification on the shape modification straight gear to generate a three-dimensional deviation diagram; and outputting a measurement result and printing a report. The problems of shape-free rapid measurement, modification tooth surface identification and tooth surface three-dimensional deviation characterization of the straight gear with unknown basic parameters are solved.

The invention relates to the technical field of laser cutting, and particularly discloses a laser cutting device based on H-shaped steel structure production. A laser cutting unit; a feeding unit; a correction unit; and a guide unit; the guiding unit conducts self-adaptive movement along the bending path of the H-shaped steel structure and guides the deviation rectifying unit to drive the laser cutting unit to conduct transverse compensation in real time, it is guaranteed that the height of the laser cutting path is consistent with the height of the extending path of the H-shaped steel structure all the time, and the laser cutting unit can achieve transverse deviation rectifying while longitudinal feeding is conducted; therefore, curvature changes in any direction can be flexibly responded, the system is particularly suitable for an H-shaped steel structure with irregular bending characteristics, in the process that the feeding unit drives the laser cutting unit to longitudinally feed at a constant speed, the system automatically completes path tracking and transverse compensation, and continuous high-precision cutting operation is achieved.

The invention relates to the technical field of image processing, in particular to a glass bead defect detection method and system based on visual detection. According to the method, glass beads are separated one by one to a detection track and controlled to roll at a constant speed, image sequences containing multiple rotation angles are continuously collected in the rolling process, then whether movement stability, dispersion and brightness meet corresponding standards or not is determined, and when any detection result does not meet the standards, a sorting mechanism immediately removes defective products at the discharging end. According to the method, the glass beads with defects can be accurately and quickly identified and removed.

The invention discloses a jacket pressure-bearing equipment corrosion defect in-service detection device and detection method, the jacket pressure-bearing equipment corrosion defect in-service detection device comprises a transverse frame, first arc frames are fixedly mounted on two sides of the transverse frame, the middle ends of the first arc frames are movably connected with contact wheels through bearings, and the lower ends of the back surfaces of the first arc frames are movably connected with second arc frames through hinges. The first arc-shaped frame and the second arc-shaped frame form a hoop structure capable of being opened and closed, the positions of the supporting wheels are adjusted in cooperation with a second screw and a movable frame, jacket pressure-bearing equipment with different pipe diameters can be rapidly adapted, overall rapid installation and fixation are achieved, a servo motor is controlled through a PLC to drive a ball screw, and the clamping device is convenient to use. The detection probe is driven to move at a constant speed along the surface of equipment, so that the problem of detection signal fluctuation caused by non-uniform moving speed in traditional manual operation is avoided, the stability and reliability of detection data are ensured, and the defect detection precision is remarkably improved.

The present application relates to the technical field of automobile bolt plating, in particular to a hot galvanizing device for automobile bolts, which comprises a processing table, a galvanizing cylinder, a control case, a driving assembly, a lifting assembly and a hanging plate, etc., one side of the processing table is provided with a side plate, the arc-shaped groove on the side plate cooperates with the moving assembly driven by the first motor, so that the base is automatically at the lowest point in the loading and unloading stations, the galvanizing station is precisely aligned with the galvanizing cylinder, the bolts are independently hung through the annular frame, the hanging plate adopts a detachable clamping structure, the second motor drives the bolts to rotate at a constant speed, cooperates with the arc-shaped protrusions at the bottom of the galvanizing cylinder to make the bolts reciprocate and jump, and the lifting assembly controls the immersion depth of the bolts, the device solves the problems of bolt occlusion, collision and uneven plating in the traditional frame soaking process, and through the independent hanging, stable rotation and jumping design, the surface precision of the bolts and the uniformity of the plating layer are ensured.

The invention relates to the technical field of welding equipment, and discloses movable multi-oil-nozzle welding equipment which comprises a lathe bed, a spindle box assembly, a tailstock mechanism, a material supporting base, a stand column, a wire feeder assembly, a vertical sliding rail and a welding gun positioning system. By means of head-tail cooperative clamping and multi-axis linkage design, high-coaxiality clamping of workpieces and accurate positioning of a welding gun are achieved; the V-shaped bracket automatically avoids, the wire feeder supplies wires at a constant speed, the welding gun can be finely adjusted in real time, and continuous and automatic girth welding of the multi-oil-nozzle workpiece is completed. According to the method, the welding efficiency and quality can be remarkably improved, the method adapts to various workpiece shapes, manual intervention is reduced, and high universality and expansibility are achieved.

The invention provides a composite feedforward cooperative control method and system for propulsion of a controllable-pitch propeller of a ship. The method comprises the following steps: establishing a propulsion composite model comprising a ship load inquiry function model and a controllable-pitch propeller propulsion cooperative control model; identifying ship resistance characteristics in real time through a load inquiry model, predicting main engine power and propeller rotating speed requirements at different navigational speeds, and calculating a main engine power margin; setting a host security threshold based on the maximum persistent power margin; within the allowable range of the safety threshold value, three cooperative control modes are selected and executed in a self-adaptive mode according to the navigation working condition, wherein the three cooperative control modes include the pitch-accelerator joint control mode under the constant rotating speed of a main engine, the main engine rotating speed-accelerator joint control mode under the fixed pitch of a controllable-pitch propeller and the controllable-pitch propeller rotating speed-pitch joint control mode under the constant power of the main engine. According to the invention, through feedforward prediction and multivariable cooperation, navigational speed closed-loop stable control is realized, the problems of host overload, black smoke emission, high exhaust temperature and large control fluctuation are fundamentally avoided, and fuel economy and all-condition navigation safety are improved.

The invention discloses a method and device for vehicle downhill constant speed control, electronic equipment and a medium. The method comprises the steps that in the process of executing downhill constant speed control, the current slope value of the current position of the vehicle is obtained; determining the initial downhill speed of the vehicle according to the current slope value based on the corresponding relation between the preset slope and the vehicle speed; in response to a control signal triggered by a user, an opening value corresponding to the control signal is determined, and the control signal comprises a brake pedal signal or an accelerator pedal signal; under the condition that the opening degree value does not exceed the corresponding preset opening degree threshold value, the target downhill speed of the vehicle is determined according to the opening degree value and the initial downhill speed; and controlling the vehicle to run according to the target downhill speed. The driving intention of the user can be determined according to the control signal triggered by the user, the target downhill speed is determined, the driving experience can be improved, meanwhile, the good energy recovery effect can be guaranteed, and therefore the precise control requirement of the downhill working condition of the electric operation machine is met.

This invention relates to the technical field of surface lubrication and friction measurement of machinery, and provides an apparatus and method for measuring the energy barrier at the surface solid-liquid interface of a microstructure. [Solution] The apparatus includes a micro-pump, a fixed elbow, a capillary tube, an upper contact surface, a lower contact surface, a droplet, a micro-movement stage, and a high-speed microscope camera. In this method, the micro-pump transports liquid to form a droplet between the upper and lower contact surfaces, the micro-movement stage is used to drag the lower contact surface at a constant speed to slide the droplet, and the high-speed camera monitors the deflection deformation caused by the droplet drag force of the capillary tube, calculates the dynamic drag force, and integrates the drag force-displacement curve to obtain the energy consumed by the droplet to overcome the microstructure. Finally, the solid-liquid interface energy barrier per unit area is obtained, overcoming the limitations of the conventional contact angle method, which cannot measure the dynamic interface energy barrier, and enabling direct and quantitative measurement of the surface solid-liquid interface energy of the microstructure.

The embodiment of the invention provides a cam curve construction and synchronous cutting control method, device and system. The construction method comprises the following steps: acquiring motion position information of a to-be-cut material; obtaining a kinematic model of the slider-crank mechanism; on the basis of the motion position information of the material and a kinematic model of a crank sliding block mechanism, a cam curve representing the corresponding relation between the motion position of the material and the rotation angle of the crank is generated, and the cam curve comprises a synchronous cutting interval; the cam curve is a line segment within the synchronous cutting interval that makes the material to be cut have a substantially constant speed. According to the embodiment of the invention, high-speed and stable cutting operation can be realized, the high consistency of the cutting process is ensured, and the cutting quality and efficiency are remarkably improved.

The ramp combination method comprises the following steps: if the addition gradient, the ramp length and the average gradient of N continuous natural ramps meet the following inequalities, combining the N continuous natural ramps into a combined ramp; the invention further provides an auxiliary driving control method, when the auxiliary driving equipment controls a vehicle in a constant-speed area, natural ramps are combined according to the ramp combination method, and each combined ramp forms a control section; the auxiliary driving equipment calculates the energy required to be output by the locomotive for reaching the expected speed at the terminal point of each control section; and calculating the average traction power or the average electric power required in the control section according to the energy, and outputting a corresponding traction level or electric level control command to the locomotive. The method has the technical advantage that the actual running speed of the train cannot exceed the set speed band when the auxiliary driving equipment controls the train at the same control level within the combined ramp range.

The invention provides a constant-speed cruise quitting method, device and equipment based on operation behaviors, which can monitor whether a driver operates a warning key or not in the constant-speed cruise process of a two-wheeled vehicle, and monitor that the driver operates the warning key under the condition that an instruction of quitting the constant-speed cruise is not received. If yes, the two-wheeled vehicle is controlled to quit the constant speed cruise, so that the operation difficulty of the driver for quitting the constant speed cruise is reduced, the safety risk caused by the fact that the driver does not quit the constant speed cruise due to warning or danger avoiding is prevented, and the safety of the two-wheeled vehicle and the driver is effectively guaranteed; and therefore, the safety and convenience of the two-wheeled vehicle are improved.

The application discloses a control method, device and equipment of a constant speed cruise and a storage medium, and belongs to the technical field of vehicle control. The method comprises the following steps: determining that a vehicle enters a constant speed cruise state, acquiring a first driving speed of the vehicle, and controlling the vehicle to drive at the first driving speed; in the case that it is determined to adjust the speed of the vehicle, acquiring a target speed after adjustment, and controlling the vehicle to drive at the target speed after adjustment; in the case that the vehicle switches from the constant speed cruise state to a pre-cruise state, acquiring a signal of an accelerator pedal of the vehicle, and controlling the driving speed of the vehicle based on the signal of the accelerator pedal; based on the vehicle recovering from the pre-cruise state to the constant speed cruise state, controlling the vehicle to drive at the target speed after adjustment; and based on the vehicle exiting the pre-cruise state, controlling the target speed after adjustment to be cleared. The control of the range-extending vehicle entering the constant speed cruise state and exiting the constant speed cruise state is realized, and the comfort and safety of driving are ensured.

The utility model discloses a release film stripping stability detection device which comprises a fixing platform, an adjusting groove is formed in the top face of the fixing platform in a penetrating mode, a starting driving mechanism drives a positioning clamping assembly to clamp a workpiece, and a starting electric push rod pushes a connecting frame and a winding roller to be bonded with the top face of the left side of a release film. The rotating mechanism is started to drive the sticking and winding roller to rotate clockwise to cooperate with the fixing frame to move rightwards at a constant speed, then 90-degree winding and stripping work can be conducted on the release film, the stripping state can be detected by starting the detection camera, the surface of the sticking and winding roller is assisted to adhere to the bottom face of the left side of the release film through the adjusting groove, and the rotating mechanism is started to drive the sticking and winding roller to rotate anticlockwise. The release film can be subjected to 180-degree winding and stripping work only by rotating the rotating shaft, the aim of automatically adjusting the stripping detection angle of the release film conveniently is achieved, and the problem that the detection flexibility of an existing detection device is greatly reduced due to the fact that the stripping detection angle of the existing detection device is single is solved.

An apparatus and method of controlling a repetitive motion linear actuator (RMLA) accepts a minimum repetition rate and a commanded repetition rate. If the commanded rate is greater than the minimum rate, the RMLA automatically operates in a speed scaling mode by continuously applying the cycles and scaling the cycle length to provide the commanded rate. If the commanded rate is less than the minimum rate, the RMLA automatically operates in a dwell mode by fixing the cycle length and discontinuously applying the cycles, while adjusting a separation between the cycles to provide the commanded rate. In dwell mode, the cycle length can be equal to its maximum allowed value Tmax, or can equal a desired value less than Tmax. The cycle can have any profile shape, such as a sinusoidal shape or a shape that includes periods of deceleration and acceleration separated by constant speed periods therebetween.

Provided is a spectrometry device equipped with a drive mechanism capable of easily controlling the movement of a movable portion at a low and constant speed. An actuator is used as the drive mechanism, the actuator comprising: a conductor (231a) that extends in a first direction; a current supply unit that passes a current through the conductor; magnetic field sources (232a, 232b) that apply, to the conductor, a magnetic field in a direction having a directional component orthogonal to the first direction and a second direction (A) that is non-parallel to the first direction; a movable element (231) that moves in the second direction due to a Lorentz force generated by the current flowing through the conductor or a reaction to the Lorentz force; an elastic body (233) that resists the movement of the movable element; and a current control unit that controls the current supply unit such that the magnitude of the current flowing through the conductor changes with a predetermined rate of change over time that corresponds to the elastic characteristics of the elastic body.

The utility model relates to the field of water conservancy and hydropower engineering geotechnical engineering tests, and discloses a test device for measuring rock hardness, which comprises a base, a lifting mechanism, a test piece clamp and a fixed bin are arranged at the top of the base, the lifting mechanism is mounted on one side of the top of the base, the test piece clamp is mounted on the other side of the top of the base, and the fixed bin is mounted on the lifting mechanism. According to the utility model, in the operation process, the elastic striking rod can be pressed downwards slowly at a constant speed, and at the moment that the elastic striking rod of the rebound apparatus rebounds, the stable fixed bin prevents the rebound apparatus from generating strenuous vibration due to rebound impact force; by arranging the test piece clamp, the two sides of the rock test piece are fixed, and the situation that the rock test piece vibrates when being impacted by the elastic striking rod, and consequently the accuracy of a test detection result is affected can be prevented through the arrangement of the suction cups.

The present application relates to the technical field of mold positioning, and discloses a computer die clamping positioning method and control device, wherein the method comprises: collecting the no-load current of a servo motor and clamping force calibration parameters; driving the positive screw and the reverse screw to rotate synchronously through the servo motor, so that the two side sliders feed at a constant speed, and when the first current of the servo motor exceeds the preset multiple of the no-load current, the feeding is stopped, and the copper public centering is completed; based on the clamping force calibration parameters, the second current of the servo motor is controlled to increase, and when the real-time clamping force is continuously stable in the preset clamping force interval, the locking current value is calculated; based on the locking current value, the yaw angle positioning is completed by rotating the adjusting disc through the first driving motor, and the pitch angle positioning is completed by turning the copper public through the second driving motor, which realizes the accurate centering of the copper public, the quantitative control of the clamping force, and the in-position adjustment of the double-axis angle.

The utility model provides a quick demoulding structure of a salt sculpture forming mould, which relates to the technical field of salt sculpture forming moulds, and comprises an operating platform, a lower mould plate is arranged at the top of the operating platform, a middle mould plate is attached to and compressed on the top of the lower mould plate, an upper mould plate is arranged at the top of the middle mould plate, and an ejector plate is arranged at the bottom in the lower mould plate. A supporting frame is fixedly connected to the position, located on the back face of the lower mold plate, of the top of the operation table, a fixing base is arranged below the supporting frame, feeding hoppers are arranged on the two sides of the top of the fixing base correspondingly, and a mixing barrel is arranged below the fixing base. The rotary motion is converted into the vertical linear motion of the movable sleeve through thread transmission, the ejector plate is jacked at a controllable constant speed and uniformly applies force, the thread transmission structure has no elastic deformation, and the contact surface of the ejector plate and the mold synchronously displaces in the whole process, so that the salt sculpture is prevented from being broken due to overlarge local stress.

This invention discloses a constant speed and constant tension control method and system in a metal heat treatment process. The equipment or system of the heat treatment process includes an uncoiling device, a winding device, a heat treatment furnace, a PLC control module, and a straightening device, as well as a speed sensor and a tension sensor. The speed sensor is used to measure the linear velocity of the heat-treated material, and the tension sensor is used to measure the tension of the material during the heat treatment process. Both the uncoiling device and the winding device are equipped with an adjustable-speed rotary motor and an encoder. By applying a constant tension to the heat-treated metal material and controlling a constant linear velocity, and by designing a reasonable speed and tension fine-tuning method based on the motor transfer function, constant speed and constant tension control is achieved. This overcomes the problem of traditional metal heat treatment only controlling the motor angular velocity and ignoring the impact of linear velocity and tension fluctuations and over-limits on the performance of the metal material, resulting in more stable product performance and a higher yield.

The following descriptions relate to a method (20) for operating an elevator system (1) with at least one car (3) movable between landing positions (6.1, 6.2, 6.3, 6.4, 6.5, 6.5) and a data processing device (10) for determining a travel path (14.1, 14.1', 14.1'', 14.2, 14.2', 14.2'') of the car (3) for each trip, comprising the steps: Receiving (21), by the data processing device (10), a trip request information comprising a start landing position (11) and a first destination landing position (12.1, 12.1'), Determining (22), by the data processing device (10), a first travel path (14.1, 14.1'') for moving the car (3) between the start landing position (11) and the first Target landing position (12.1, 12.1') ​​and procedure (23) of the car (3) according to the first travel curve (14.1, 14.1''), whereby a maximum speed (V Begr.) to determine the first travel curve (14.1, 14.1'') is limited such that the first travel curve (14.1, 14.1'') necessarily includes a travel section with a constant speed (16, 16'). The following explanations further relate to a corresponding elevator system (1).

The present application belongs to the technical field of shipbuilding, and particularly relates to a strip material primer automatic processing system and method. The strip material primer automatic processing system provided by the present application can automatically adapt to different specifications of ship-use strip material parts, including thickness, width and length, and can automatically adapt to the warping deformation of the strip material parts, and is more suitable for engineering application. Before starting polishing, the strip material specification does not need to be input, and the abrasive belt machine can automatically find the area to be polished, reducing manual intervention and improving the paint removal efficiency. Compared with the traditional paint removal method, the present application realizes the automatic paint removal of the polishing area of four edges of the strip material part at the same time, and can cover the head and tail end, with no dead angle polishing, and the strip material does not need to be turned over during the process. The strip material part is driven by the conveying roller to move at a constant speed, the abrasive belt machine rotates at a constant speed, and the pressing force of the abrasive belt machine between the strip material parts is relatively constant, so that the polishing and paint removal effect is stable, the base material is not damaged, and the quality requirement can be met by one-time paint removal without repeated paint removal.

The application relates to the technical field of laser welding, and discloses a laser welding robot for industrial production, which comprises a welding table, two vertical plates symmetrically arranged on the top of the welding table, an L-shaped plate arranged on the top of the welding table, a telescopic air cylinder arranged on the L-shaped plate, a laser welding head arranged at the output end of the telescopic air cylinder, and a cooling component arranged on one of the vertical plates; the cooling component comprises a cooling assembly arranged on the laser welding head. The laser welding robot for industrial production realizes automatic and synchronous control of tubular workpiece welding through the cooperative operation of a clamping rotating assembly and the laser welding head. The driving wheel drives the clamping ring to rotate at a constant speed through a third belt, and the laser welding head is accurately positioned at a welding height under the driving of the telescopic air cylinder, so that errors and efficiency loss caused by manual adjustment of the workpiece position are avoided. Compared with traditional manual welding or step-by-step welding equipment, the laser welding robot does not need to frequently interrupt the welding process to adjust the workpiece posture.

The utility model discloses a portable handheld welding machine auxiliary device which comprises a frame, two sets of moving seats are connected in the frame in a sliding mode, fixing plates are fixedly connected to the upper portions of the two sets of moving seats, a plurality of sets of sliding grooves are formed in the circumference of the outer wall of each fixing plate, and a device frame is installed at the telescopic end of an electric telescopic rod. A driving wheel is rotationally connected into the device frame, a driving motor is installed on the outer wall of the device frame, an output shaft is coaxially and fixedly connected with the driving wheel, and a driving mechanism for driving the multiple moving plates to slide is installed on the outer wall of the fixed plate. Through the internal and external cooperative clamping structure of the driving wheel and the rolling wheel, a round pipe can continuously rotate at a constant speed in the welding process, an operator can complete welding of a whole circle of weld joints at a time without repeated disassembly and adjustment, the problem of repeated arcing caused by welding interruption is avoided, welding defects such as incomplete fusion and air holes are effectively prevented, and the welding efficiency is improved. And the consistency and the reliability of a welding joint are improved.

The utility model relates to the technical field of insulating material processing equipment, in particular to slitting equipment for an insulating supporting strip. A slitting device for an insulation supporting strip comprises a frame body which forms a basic supporting structure of the device. The slitting assembly is arranged in the upper machining area of the frame body and comprises an upper slitting assembly and a lower slitting assembly which are arranged in a spaced mode, the upper slitting assembly is used for conducting rotary cutting on the upper half portion of the supporting strip, and the lower slitting assembly is used for conducting rotary cutting on the lower half portion of the supporting strip; the rolling assemblies are arranged on the upper portion of the frame body at intervals in the machining direction, located on the two sides of the slitting assembly and used for pressing the supporting strips to prevent longitudinal tilting; the dust removal assembly comprises a liftable dust removal cover arranged outside the upper cutting assembly and a fixed dust removal cover arranged below the lower cutting assembly and is used for collecting cutting dust; and the traction assembly is arranged at one end of the frame body, comprises a driving unit and a transmission mechanism and is used for pulling the stay to move at a constant speed.

The invention relates to the technical field of dynamic model experiment test platforms, and discloses a trailer mechanism and model effective separation method based on the trailer magnetic eddy current deceleration principle, and the method comprises the following steps: 1, carrying out the flexible connection of a piston type trailer and a model vehicle through a connecting rope; 2, compressed air is introduced into the air inlet A and the air inlet B; 3, when the driving piston crosses the air leakage hole by 1 m, the piston type trailer moves to a separation area, the piston type trailer decelerates, and the model car moves at a constant speed; 4, the distance between the piston type trailer and the model vehicle is reduced, the flexible connection is loosened, and the flexible connection is separated from the model vehicle; 5, driving a piston to move to an air leakage hole, decelerating the piston type trailer to be static, and enabling the model vehicle to enter a test section; and 6, after the piston type trailer is static, the piston type trailer, the traction cable and the driving piston are pushed to move back by a certain distance. Safe separation of the trailer mechanism and the model vehicle is guaranteed, and the separation effect can be guaranteed even at a high speed.

The invention discloses a motor constant speed control method for an electric tractor, and relates to the technical field of line construction, and the method comprises the steps: a tension detection module which collects a tension signal of a wire in the paying-off operation of a high-voltage transmission line in real time; the frequency identification module is electrically connected with the tension detection module and is used for performing frequency domain analysis on the tension signal and identifying a periodic disturbance frequency corresponding to tension fluctuation; the self-adaptive control module comprises a sliding mode controller, and the sliding mode surface design of the sliding mode controller is combined with the periodic disturbance frequency, and a sliding mode control signal is generated based on a traction machine motor rotating speed feedback signal and a rotating speed instruction signal. The sliding mode controller is combined with disturbance frequency design, the anti-interference capacity is high, even if external disturbance exists, constant-speed operation of a traction machine motor can be maintained, paying-off speed fluctuation is reduced, the straightness and tension consistency of wire laying are guaranteed, the operation risk is reduced, the overall efficiency is improved, and stable constant-speed and tension control is achieved; and the manual intervention and fault shutdown times are reduced.

This invention relates to the field of intelligent manufacturing and concrete product production equipment control technology, specifically an intelligent control system for the entire production process of concrete poles. The system includes: a reference parameter identification unit for performing a stepped acceleration test and calculating the empty mold impedance parameter characterizing the inherent mechanical resistance of the mold; a load torque observation unit for acquiring the electromagnetic drive torque in real time and extracting the net load torque acting only on the concrete material; a rheological and distribution state analysis unit for calculating the dimensionless eccentricity factor characterizing the uniformity of material distribution; and an adaptive closed-loop control unit for generating corresponding control commands: an emergency braking command is output when the eccentricity exceeds the safety limit, a constant-speed shearing command is output when the rheological state does not meet the standard, and an adaptive acceleration command is output when the rheological state meets the standard and the eccentricity is within the safe range. This invention solves the problem of the inability to directly observe the material state within a closed mold, achieving transparent monitoring of the physical properties of concrete.

To provide a driving support device improved so as to reduce a risk that vehicle speed control is inappropriately executed due to the fact that an actual wheel speed becomes larger than a wheel vehicle speed calculated as a product of a rotational speed of a wheel and a constant even if an outer peripheral length of the wheel increases due to a change in a situation of the wheel.SOLUTION: A driving assistance ECU10 in which a product of a wheel rotation speed estimated based on a meter speed and a constant value stored in advance is calculated as a wheel speed, and a wheel rotation speed is controlled such that the wheel rotation speed becomes a target wheel rotation speed for causing the wheel speed to become a target speed, the driving assistance ECU10 acquiring information on an actual speed of the car from the GNSS receiver when it is determined that the car 102 is traveling at a constant speed; When the difference between the actual vehicle speed and the wheel speed is larger than the reference value, at least one of the constant, the target wheel rotation speed, the target vehicle speed, and the wheel speed used for the vehicle speed control is corrected based on the difference so that the difference becomes smaller than the reference value, and the vehicle speed control is executed.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of proton radiation therapy planning, and provides a planning method and system for realizing proton arc therapy, and the method comprises the steps: calculating the corresponding rotation speed of a rack during the delivery of each irradiation field beam spot based on a proton multi-field intensity modulated therapy plan; based on the calculation result, the angle distribution of the irradiation fields is optimized and adjusted, so that the rotation speed of the rack in each irradiation field is close to the constant speed, and the speed fluctuation is effectively reduced; and on the basis that the rack is approximately rotated at a constant speed, a self-adaptive beam intensity control system is designed, so that the rack is rotated at a constant speed in the whole treatment process. According to the technical scheme, the mechanical burden of the rack is relieved, the treatment time is remarkably shortened, the overall treatment efficiency is improved, and a new technical breakthrough and development direction is brought to the field of proton treatment.