46 results about "Stationary motion" patented technology

A method for providing vehicle lateral steering control. The method includes providing a mathematical model of vehicle dynamics that includes a state variable, a steering control variable and a future road disturbance factor that defines the upcoming road curvature, banks and slopes of the roadway. The method determines an optimal steering control signal that includes a feedback portion and a feed-forward portion, where the feed-forward portion includes the road disturbance factor. The method determines a state variable and a control variable for the current roadway curvature, bank and slope for stationary motion of the vehicle for constant speed, yaw rate and lateral velocity. The method then introduces a new state variable and control variable for dynamic vehicle motion for variable speed, yaw rate and lateral velocity that is a difference between the state and control variables for predicted future times and the steady state variables.

The disclosure is directed to using motion to reduce unnecessary scans for local wireless networks. An aspect determines whether or not a motion state change event of a user device indicates a change from a moving motion state to a stationary motion state, and if the motion state change event indicates a change from a moving motion state to a stationary motion state, ignoring the motion state change event. An aspect of the disclosure is directed to using motion to reduce latency of scanning for local wireless networks. An aspect determines whether or not a user device is in motion, determines whether or not a periodic scan timer has expired and/or a received signal strength indicator (RSSI) is below a threshold, and if the user device is in motion and the periodic scan timer has expired or the RSSI is below the threshold, scanning for a local wireless network.

The invention discloses a motion trail planning method for a mechanical arm. The motion trail planning method comprises the steps that the mechanical arm is controlled to move with a preset motion trail according to preset starting point coordinates and end point coordinates and a speed curve algorithm; after a stop instruction sent by a user is received, the current motion time of the mechanical arm is obtained, and the current motion stage of the mechanical arm is determined according to the current motion time and the time duration configured for each motion stage; and according to the current motion stage of the mechanical arm, the preset time duration of the motion stages and preset initial parameters in an initial parameter set are changed, the changed motion trail is generated, and the mechanical arm is controlled to move with the changed motion trail. The invention further provides a motion trail planning device for the mechanical arm and the robot. After the stop instruction of the user is received, the motion trail is replanned, so that the motion arm is stopped as fast as possible on the premise of keeping stable motion and speed continuity.

The invention discloses a multifunctional adsorbing type movable platform. The multifunctional adsorbing type movable platform comprises three moving units, three driving platforms corresponding to the three moving units one to one, a bearing platform and three supporting assemblies corresponding to the three driving platforms one to one, wherein each moving unit is provided with an adsorbing structure; the driving platforms are arranged on the moving units, and are movable relative to the moving units; one end of each supporting assembly is rotationally connected with the bearing platform; and the other end of each supporting assembly is connected with the corresponding driving platform through a spherical hinge. According to the multifunctional adsorbing type movable platform, by arranging the adsorbing structures on the moving units, the moving units can travel on a wall, a ceiling or a pipeline wall face, and curved face operation of a rotating wheel body, a water guiding pressuresteel pipe, a volute, a ship steel structure and the like can be achieved. Besides, due to cooperation of the moving units, the driving platforms and the supporting assemblies, six-freedom-degree flexible movement, accurate positioning and stable movement of the bearing platform can be achieved.

The invention relates to a motion planning method of a radio telescope feed source support system. The method is characterized by comprising the following steps of calculating the time parameters requiring motion plan according to the astronomical track types to be observed; sending the time parameters to an astronomical track plan unit; converting a rectangular coordinates including the time information by the astronomical track unit; sending data to a motion plan unit; performing motion plan according to the current position of the feed source support system by the motion plan unit, whereinthe motion plan comprises a starting plan, an observation track plan and a completion plan; obtaining the complete motion track. The motion plan method of the feed source support system is used; the starting plan and the termination plan are added; the turning point position acceleration and deceleration plan are added in the observation track motion plan scheme to ensure the stable motion of thefeed source support system; the efficient utilization of the observation data is facilitated; the positioning precision of a feed source is ensured, so that the total usability of the observation track data is further ensured.

The invention discloses a high-efficiency three-dimensional engraving machine, which comprises a cylinder seat, a tool holder sliding mechanism, a servo drive mechanism, a steering joint and a workpiece clamping device. Installed between the push rods, the servo drive mechanism is arranged on the tool holder slide mechanism, the steering joint connects the servo drive mechanism and the tool holder, and the workpiece clamping device is arranged at one end of the table. The invention controls the smooth movement of the tool holder sliding mechanism through the cylinder and the guide rail, and the servo drive mechanism is connected with the tool holder through the steering joint, so that the tool can flexibly change the angle during carving, and the air-cooled spindle can blow debris into the garbage while carving The collecting tank and the rotating seat installed on the mobile platform are convenient for the turning of the engraved workpiece. If the workpiece is a flat plate, it can be fixed by the table and the workpiece clamping device. The structure is reasonable and suitable for widespread promotion.

The invention discloses a punch forming machine for electrode plate processing. The punch forming machine for a electrode plate, which comprises operation panels, a control cabinet, mixer pushing cylinders, a plastic stirring coating device, a hot pressing mechanism, a punch forming device, an automatic feeding manipulator, an electrode taking manipulator and an electrode sending manipulator is characterized in that: the whole process of an operation system of the punch forming machine adopts the industrial PLC control; the plastic stirring coating device mainly comprises a material pushing cylinder and a mixer; the hot pressing mechanism comprises an elevating cylinder, a hot plate and suckers at the bottom of the hot plate; and the punch forming device comprises a chopping plate, a thimble, a servo motor, a ball screw and a rectangular speed reducer. The punch forming machine for the electrode plate of the invention, which has the advantages of high automation degree, accurate and stationary motion because of the pneumatic system adoption, and realization of setting parameters on the interface because of the human-machine interface operation, has the functions of shift production accumulation, fault display and work state display and simultaneously has an automatic and manual switching function, can flexibly operate.

The invention discloses a smoke guide plate lifting mechanism of a range hood. The smoke guide plate lifting mechanism of a range hood comprises a mounting frame, a driving mechanism, lifting rods and a smoke guide plate, wherein the driving mechanism is arranged on the mounting frame, the smoke guide plate is arranged on the lower end of the lifting rod, the driving mechanism drives the lifting rod and the smoke guide plate to do lifting motion; the smoke guide plate lifting mechanism of a range hood is characterized in that the driving mechanism is an electric winch mechanism, at least two lifting rods are provided and the lifting rods are provided on the left side and the right side of the mounting frame, the electric winch mechanism is provided with two power output ends, the two power output ends are located on the left side and the right side of the mounting frame respectively, and meanwhile, the power output ends can drive the lifting rods on the two sides to perform synchronous lifting motion. The smoke guide plate lifting mechanism of the range hood has the advantages that the electric winch mechanism is adopted for the driving mechanism of the smoke guide plate lifting mechanism, the two power output ends of the electric winch mechanism are located on the left side and the right side of the mounting frame respectively, the power output ends provide power for moving up and down and drive the lifting rods on the two sides to perform synchronous lifting motion, and therefore the smoke guide plate can keep stable motion.

The invention relates to the technical field of film drawing equipment, especially to a conical roller assembly for shaping by a film drawing machine. A first rotating shaft is rotatably mounted on a frame; a first rotating disk is fixedly arranged on the first rotating shaft; a second rotating disk is slidably installed on the first rotating shaft; a crank link mechanism comprises a crank and a connecting rod, wherein one end of the crank is hinged with the second rotating disk through a second hinge joint while the other end of the crank is hinged with the body of the connecting rod through a third hinge joint, the front end of the connecting rod is hinged with the first rotating disk through a first hinge joint, and the crank, the connecting rod and the first rotating shaft are located in a same plane; the number of the crank link mechanisms is 45 to 75 groups, and the crank link mechanisms are of a same size and shape and are uniformly distributed in the shape of a ring array with the first rotating shaft as a center; and the external surfaces of the connecting rods form a conical surface with the first rotating shaft as an axial center through enclosure. The conical roller assembly has the advantages of stationary motion, high accuracy and rapid and simple adjusting, so product quality and production efficiency are improved.

The invention relates to a composite linkage double-cylinder system, which is characterized in that it includes a first driving cylinder, a second driving cylinder, a fixed seat and a movable seat; The two ends of a driving cylinder cooperate with the first fixed seat and the movable seat respectively, and the first driving cylinder drives the movable seat to realize the angle adjustment of the second driving cylinder, and the assembly of the second driving cylinder and the second fixed seat is used to realize the angle adjustment of the second driving cylinder by the second The drive cylinder realizes the linear motion of the movable block connected to the second drive cylinder, and the combined movement of the first drive cylinder and the second drive cylinder realizes the compound linkage of the two cylinders, the advantages of fast synchronous telescopic movement speed and no vibration of stage change, which can be Achieve fast and smooth movement of loads.

A half-size MicroMouse motion control system belongs to the technical field of automatic control. An STM32 microcontroller serves as a processing unit, common drag cup motors serve as power devices, magnetic encoders serve as speed measuring devices, and a half-size MicroMouse is driven to move smoothly via a PID feedback control algorithm. The control system comprises the processor, left and right controllers, the left and right drag cup motors and the left and right magnetic-coding speed measuring devices. The processor sends expected speeds to the left and right controllers respectively, the controllers adjust the rotating speeds of the motors via feedback of the speed measuring devices, and the expected speeds are achieved. Non-contact type speed measurement via the magnetic encoders is used, the space is saved, and the cost and resistance are reduced; and the adaptive parameter PID control algorithm is designed to solve the problem that the small drag cup motors are insufficient in power.

The embodiment of the invention discloses a method and device for controlling the slope motion of a robot under a semantic map, and a storage medium. The method comprises the following steps that: a slope-like landform is constructed according to the actual landform of a running environment map of a robot, wherein the semantic attribute of the slope-like landform is a slope and the slope edges ofthe slope-like landform at least include an upper slope edge and a lower slope edge; when the current running to the slope-like landform is identified based on semantic information, a relative positional relationship between a robot and the slope-like landform is determined according to a robot coordinate system and an environmental map coordinate system; the robot is determined to be in a going up or going down state currently according to the relative positional relationship and the type of the slope edge which the robot passes; and on the basis of the state type of the robot, correspondingmotion state parameters are selected to control the motion of the robot. According to the invention, the slope-like landform in the robot motion environment is identified through the semantic map information, so that the motion state of the robot is controlled in the slope-like landform range reasonably; and thus the robot moves smoothly and stably.

A sealing ring is formed by arranging a plurality of segments around the shaft of a rotor of an axial flow turbine with their outer parts received in a holding groove formed in an inner ring included in a nozzle diaphragm. Flat plate springs press the segments of the sealing ring radially inward, and curved plate springs press the segments of the sealing ring radially outward. The pressing forces of the flat plate springs and the curved plate springs are determined so as to compensate the differences in pressing forces acting on the segments of the sealing ring attributable to the respective own weights of the segments of the sealing ring. The flat plate springs and the curved plate springs prevent the irregular movement of the segments of the sealing ring, ensure the smooth radial movement of the segments of the sealing ring, and prevent contact between sealing fins attached to the segments of the sealing ring and the shaft of the rotor of the axial flow turbine.

The invention discloses a simple direct connection device for automatic filtering and cleaning of bituminous coal firing substances, and belongs to the field of filtering and cleaning device for bituminous coal firing substance solution. The device includes a base plate, and a side plate and a second beaker, which are mounted on the base plate; and the device further comprises a top plate arranged on the top of the side plate, a funnel arranged on the top plate, filter paper arranged on the inner surface of the funnel, a glass rod mounted on the funnel, a beaker direct connection module and a first beaker. The first beaker contains a firing substance solution; the beaker direct connection module comprises a left bracket and a right bracket mounted on the base plate, a rotating shaft arranged on between the left bracket and the right bracket, a U-shaped frame installed on the left bracket, a stepper motor installed in the U-shaped frame, and a beaker seat arranged on the right end of the rotating shaft; the output shaft of the stepper motor is connected the other end of the rotating shaft; and the beaker seat is provided with the first beaker. The simple direct connection device has the advantages of compact structure, stationary motion and no artificial participation, and can conduct automatic filtering on bituminous coal firing substance solution through the motor direct connection technology.

The invention relates to a double-suitcase rotary fiber baler, and belongs to the technical field of fiber packaging machinery. The double-suitcase rotary fiber baler includes a rack, a suitcase picking and releasing mechanism, a suitcase guiding and compacting mechanism, a center shaft and a rotating frame, wherein the rack is composed of a left wallboard and a right wallboard connected with an upper cross beam and a lower cross beam to form a square-shaped structure, the suitcase picking and releasing mechanism is arranged at the left end of the upper cross beam of the rack, and the suitcaseguiding and compacting mechanism is arranged at the right end of the upper cross beam of the rack; and the central shaft is supported in the middle of the upper cross beam, the lower end of the central shaft is supported in the middle of the lower cross beam, the middle of the rotating frame is fixed to the lower end of the central shaft, the first suitcase is settled on the left end of the rotating frame, and the second suitcase is settled on the right end of the rotating frame. The double-suitcase rotary fiber baler has the characteristics that a center shaft rotary driving mechanism and arotating frame rotating in place buffer mechanism are further included, the center shaft rotary driving mechanism is arranged on the lower cross beam and connected with the lower end of the center shaft in a transmission mode, and the rotating frame rotating in place buffer mechanism is arranged at the right end of the lower cross beam and corresponds to the end of the rotating frame. The automation effect is ideal, smooth movement of the rotating frame is ensured, and inertial impact during rotating in place is avoided.