47 results about "Stationary motion" patented technology

The invention relates to a motion compensation method based on motion state identification in real-time electronic image stabilization, which comprises the steps that: (1) the likelihood function of a motion type is trained; (2) a motion compensation model is built; (3) the offset of a current frame image with correspondence to the center point of a window is calculated; (4) a component motion is filtered, and an ideal motion parameter and a linear fitting parameter are calculated; (5) the motion state of the current frame image is identified, and a motion compensation parameter is set up; (6) according to the motion compensation quantity of three stages, the output position of the current frame image is determined. The method divides motion compensation into the three parts of jitter compensation, smooth motion compensation and deviation compensation; camera motion is divided into staring shoot and scanning shoot; by identifying the current motion state of a scene, the proportion of the three motion compensation parameters are adaptively adjusted, therefore the 'too smooth' and the 'lack of smooth' problems during the motion compensation solving process is solved. The motion compensation method has the advantages that, the image stabilization problems in various complicated motion states and during free shooting mode conversion are effectively solved, and the objective to real-timely output stable video is achieved.

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 present invention relates to a means for creating a visual illusion of directional movement based on stationary motion elements referred to as “motion pixels.” In various embodiments, methods for using the directional illusion are provided, such as 1) the measurement and / or assessment of visual performance in active and virtual reality environments, 2) the measurement and / or assessment of acuity, in conjunction with eye trackers so as to measure visual performance in nonverbal or potentially malingering observers, 3) the enhancement of advertising and marketing by drawing attention to a desired symbol, and 4) the enhancement of images so as to produce the appearance of motion in otherwise stationary images.

Embodiments of the systems and methods disclosed herein utilize a brushless DC motor (BLDCM) to drive a single-stage or a multi-stage pump in a pumping system for real time, smooth motion, and extremely precise and repeatable position control over fluid movements and dispense amounts, useful in semiconductor manufacturing. The BLDCM may employ a position sensor for real time position feedback to a processor executing a custom field-oriented control scheme. Embodiments of the invention can reduce heat generation without undesirably compromising the precise position control of the dispense pump by increasing and decreasing, via a custom control scheme, the operating frequency of the BLDCM according to the criticality of the underlying function(s). The control scheme can run the BLDCM at very low speeds while maintaining a constant velocity, which enables the pumping system to operate in a wide range of speeds with minimal variation, substantially increasing dispense performance and operation capabilities.

The invention relates to the technical field of mechanical arm control, and particularly discloses a mechanical arm motion planning method, a mechanical arm and a robot. The method comprises the following steps that the arm angle range and the initial arm angle value of each pose in the motion trail of the tail end of the mechanical arm are calculated, an upper boundary curve and a lower boundarycurve are generated according to the arm angle range, the angle range of a sudden change arm existing in the arm angle range of each pose is recognized, the angle proportion of the arm angle is calculated according to the angle value of the starting arm and the angle range of the arm angle of the initial pose, the arm angle of the pose corresponding to the angle range of the mutant arm is calculated according to a preset correction model, the arm angle corresponding to the other pose is calculated according to the angle proportion of the arm, and finally, according to the pose of the tail endof the mechanical arm in the motion track, the angle of the joint of the mechanical arm corresponding to each pose is calculated according to the arm angle of each pose. By means of the mode, the mechanical arm motion planning method can enable the rotating angle of the joint of the mechanical arm to be continuous during movement, and can ensure continuous and stable movement of the mechanical arm.

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 discloses a bionic eight-legged special robot in the technical field of robots and aims at solving a technical problem that the moving ability of a wheeled and tracked robot is insufficient in a complicated ground environment in the prior art. The bionic eight-legged special robot comprises a body; four mechanical legs are arranged on the left and right sides of the body; the mechanical legs comprise first running mechanisms and second running mechanisms; the first running mechanisms are fixedly connected with the body through a frame; the second running mechanisms and the firstrunning mechanisms are correspondingly connected with a rotor and a stator of a motor 2; the first running mechanisms and the second running mechanisms work together to realize stable movement of thebody. The bionic eight-legged special robot has the advantages that the bionic eight-legged special robot can simulate multiple eight-legged organisms such as spiders and crabs through mechanism adjusting; the integral motion speed is adjustable; the structure is compact; the performance is reliable; the changing is flexible; and an obstacle crossing function is realized.

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 six-degrees-of-freedom motion platform based on the application of a motion simulation system, comprising a motion simulation system and a six-degrees-of-freedom motion platform linked with the motion simulation system. The six-degrees-of-freedom motion platform comprises a static platform, a moving platform used for supporting the motion simulation system, six servo electric cylinders fixed on the static platform, six speed reducers connected with the servo electric cylinders respectively, and six link mechanisms connected with the speed reducers and the moving platform. A servo system and the servo electric cylinders based on full-digital control are used as an actuator of the moving part of the platform, so that the movement track and speed of the platform are smooth and continuous, and high-frequency-response fast movement and low-speed smooth movement are realized.

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.

A hand tufted blanket knitting machine comprises a gun body, the middle part of the gun body is provided with a short shaft, the base of the short shaft is provided with a wheel disc, the top of the short shaft is provided with a bend rod, the gun body is also provided with a motor driving the wheel disc, the front of the gun body is provided with two rows of guide rails paralleling up and down, the head of the guide rails is provided with a head seat, each of the guide rails is provided with a slide block, the bent rod is connected with the upper slide block through a linkage rod, the eccentric circular position of the wheel disc is provided with a linkage rod connected with the lower slide block, the middle part of the upper slide block is provided with a perching knife, the middle part of the lower slide block is provided with a knitting needle, and the perching knife and the knitting needle can penetrate through a small hole on the heat seat. The hand tufted blanket knitting machine has the advantages of reasonable structural design, stationary motion, light weight, small noise, long service life, worker production efficiency improvement and enterprise cost saving.

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 type double-cylinder system. The composite linkage type double-cylinder system is characterized by comprising a first driving cylinder, a second driving cylinder, fixed seats and a movable seat. According to the composite linkage type double-cylinder system, composite motion adopting the double cylinders is achieved by adopting the first driving cylinder and the second driving cylinder, the two ends of the first driving cylinder are utilized to be matched with the first fixed seat and the movable seat correspondingly, the first driving cylinder drives the movable seat to achieve angle adjustment of the second driving cylinder, the second driving cylinder is utilized to be assembled with the second fixed seat, and rectilinear motion of a movableblock connected to the second driving cylinder is achieved through the second driving cylinder; and double-cylinder composite linkage is achieved through combination of the first driving cylinder andthe second driving cylinder, the composite linkage type double-cylinder system has the advantages that the speed of synchronous telescopic movement is high, and no grade-changing vibration is generated, and rapid and smooth motion of a load can be achieved.

The invention discloses a goods shelf with ladder capable of being stored in a movable mode. The goods shelf comprises a goods shelf, a ladder, a fixed rod, a rotating shaft and a positioning rod, wherein a storage cabinet is arranged on the right side of the goods shelf, a sliding rail is arranged at the upper end of the goods shelf, a positioning groove is reserved in the upper end of the storage cabinet, and rollers are installed on a universal ball. The inner side of the upper end of the ladder is connected with the universal ball through a connecting rod, a supporting pulley is arranged at the lower end of the ladder, and a horizontal pulley is arranged at the lower end of the supporting rod. The rotating shaft is arranged at the lower end of the right side of the ladder, and the fixing rod is arranged on the rotating shaft, and a positioning rod is fixed at the lower end of the right side of the goods shelf. According to the goods shelf, the ladder is connected to the storage cabinet, the ladder is not required to be manually moved during use, the working time is saved, and the efficiency is improved. The ladder can be unfolded in a more labor-saving way, and the horizontal pulleys with the same size make the ladder to be moved more stably in the horizontal direction. The fixed rod can be used for folding and fixing non-working ladders, so that the space is saved.

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.

The invention discloses a smoke guide plate lifting mechanism of a range hood. The mechanism comprises a mounting frame, a driving motor, a transmission mechanism, lifting rods and a smoke guide plate; the driving motor drives the lifting rods and the smoke guide plate to perform a lifting motion through the transmission mechanism; a driving gear and a driven gear of the transmission mechanism are horizontally arranged side by side and engaged with each other; a first rack is vertically arranged on the outer side of the driving gear and engaged with the driving gear; a second rack is vertically arranged on the outer side of the driven gear and engaged with the driven gear; the first rack and the second rack are connected with connecting plates; at least two lifting rods are provided and arranged on the left and right sides of the mounting frame; and the upper ends of the lifting rods are connected to the connecting plates. According to the smoke guide plate lifting mechanism, the transmission mechanism is designed as a double-gear structure; under driving by the driving motor, the first rack and the second rack can move up and down at the same time; the transmission mechanism cannot generate the tooth jump phenomenon and abnormal noise; uniform stress of the lifting rods on two sides is guaranteed; the motion synchronism is excellent; and the smoke guide plate can be kept in stable movement.

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.