240 results about "Position control system" patented technology

Disclosed in the present invention is an output feedback control method for a pilot-operated electro-hydraulic proportional servo valve considering disturbance suppression. According to the control method, a nonlinear active disturbance rejection controller with both disturbance suppression and unknown state estimation is designed on the basis of a constructed disturbance observer in combination with an extended state observer. To address the problem of a valve core position control system of the pilot-operated electro-hydraulic proportional servo valve, the present invention not only ensures suppression of matched interference in the system, but also compensates for mismatched interference in the system, and utilizes a state observer to estimate unmeasurable state variables, so as to construct full-state feedback control, thereby ultimately achieving high-precision tracking control of the valve core position.

An agricultural harvester has a frame and a spout that is mounted to the frame. A target landing point indicates a position in a receiving vehicle where material is intended to land. A control system detects an actual landing point and automatically controls the spout based on a difference between the actual landing point and the target landing point.

The invention provides a three-order hydraulic servo position control system active-disturbance-rejection control method based on friction compensation, and relates to the technical field of fluid transmission and control, and the method comprises the steps: S1, building a state space model of a three-order hydraulic servo position control system, building a linear expansion state observer, and obtaining a linear active-disturbance-rejection controller of the three-order hydraulic servo position control system; s2, nonlinear time-varying disturbance compensated by the third-order hydraulic servo position control system is converted into a tracking error compensation item controlled by a friction compensation algorithm; s3, verifying the stability of the closed-loop third-order hydraulic servo bit control system through error convergence before and after feed-forward compensation; and S4, the control voltage of the third-order hydraulic servo position control system is input, and nonlinear friction feedforward compensation control of the third-order hydraulic servo position control system is achieved. According to the method, a model-free control strategy is adopted, an innovative solution path is provided for friction suppression and self-adaptive friction compensation, and the control precision and robustness of the hydraulic servo system are improved.

The invention discloses a self-positioning control method and system of a pipe bending all-in-one machine, and relates to the technical field of self-positioning control methods. A plurality of sub-positioning spaces are determined according to recognition of a positioning image of the bent pipe, a positioning repair area of the bent pipe is determined according to the plurality of sub-positioning spaces, positioning coefficients corresponding to the plurality of supporting nodes and a current positioning posture of the bent pipe, and a positioning compensation process of the bent pipe is triggered according to the positioning repair area and the bent pipe all-in-one machine. And the accuracy of the positioning compensation process is improved. Determining a plurality of positioning compensation parameters of the elbow pipe according to each positioning compensation item, the overall shape of the elbow pipe and the positioning coefficients of the plurality of supporting nodes; corresponding positioning compensation actions are determined according to the multiple positioning compensation parameters, the corresponding positioning compensation positions and the surface quality requirement of the bent pipe; the multi-stage self-positioning control system is constructed based on the multiple positioning compensation actions, the preset positioning requirement of the bent pipe and the form of the bending area of the bent pipe, and the accuracy of the multi-stage self-positioning control system is improved.

An exemplary exit device system includes a pushbar assembly and a control system. The pushbar assembly includes a latch having an extended position and a retracted position, a blocking member having a blocking position in which the blocking member retains the latch in the extended position and an unblocking position in which the blocking member permits the latch to move to the retracted position, a pushbar operable to move the blocking member between the blocking position and the unblocking position, and an electronic driver operable to move the blocking member between the blocking position and the unblocking position. The control system is configured to operate the electronic driver to electrically move the blocking member between the blocking position and the unblocking position based upon information received from a credential reader.

A control system includes a work implement positioning system for moving a work implement to a desired position. A sensor is associated with the work implement and configured to obtain position information of the work implement. An electronic controller is configured to initiate a timer when the work implement is placed in the predetermined position. The controller is further configured to upon expiration of the timer, cause the work implement positioning system to return the work implement to the desired position. The controller is further configured to determine that the work implement has returned to the desired position.

The invention discloses a storage and transfer RGV trolley for railway vehicle wheels. The storage and transfer RGV trolley comprises a conveying rail of a profile steel structure; the RGV body comprises a steel structure body, a driving mechanism and a wheel vertical storage rack, and the steel structure body is arranged on the conveying track in a sliding mode; the driving mechanism is arranged between the steel structure vehicle body and the conveying track and used for driving the steel structure vehicle body to move along the conveying track, and the vertical wheel storage rack is arranged on the steel structure vehicle body and used for storing a plurality of vertically-placed wheels; and the positioning control system is used for detecting the position of the RGV body and controlling the driving mechanism to start and stop. The technical effects are as follows: automatic transfer can be realized, and high efficiency is achieved; the structure is simple and the cost is lower; more wheels can be placed and transferred, the wheels can be prevented from toppling and bumping, the stability is higher, and the transferring process is safer; a conveying line is easier to adjust and modify, and the flexibility is good; various wheels with different diameters and different thicknesses can be stored, and the adaptability is better.

A method of controlling position of a trawl net is provided. The method may comprise: receiving, by a processor, a control input, wherein the control input comprises: (i) a selection of one of a plurality of position control modes, and (ii) a position control setpoint for the trawl net; receiving, by the processor, sensor data indicating a sensed position of the trawl net; generating, by the processor, a first trawl position control output based on the control input and the sensor data; determining, by the processor, a rate of change of bathymetry along a travel path of the trawl net; and in response to the rate of change of bathymetry meeting a threshold condition, generating a second trawl position control output by changing the one of the plurality of position control modes to another of the plurality of position control modes.

A position control system may obtain image data representing one or more images depicting an inlet of a mass spectrometer and an emitter positioned near the inlet, and adjust a position of the emitter relative to the inlet to an optimal position at or near a reference position relative to the inlet based on the image data.

An agricultural implement includes a frame including a center frame section, an intermediate frame section, and a wing frame section. A first actuator is configured to rotate the intermediate frame section relative to the center frame section and a second actuator is configured to rotate the wing frame section relative to the intermediate frame section. A first sensor is configured to sense a position of the intermediate frame section relative to the center frame section, and a second sensor is configured to sense a position of the wing frame section relative to the intermediate frame section. A control system is configured to independently control the first actuator and the second actuator to travel by a different percentage of a total displacement based on the sensed positions of the intermediate frame section and the wing frame section. Related methods and control systems are also disclosed.

The invention discloses a rotary kiln treatment system and method for zinc-containing dust and sludge, and belongs to the technical field of industrial solid waste treatment. The system comprises a batching system and a roasting system, the batching system is used for mixing raw materials and conveying the mixed raw materials to the rotary kiln; the roasting system comprises an automatic roasting temperature control system and a high-temperature section position control system, the automatic roasting temperature control system is used for adjusting the roasting temperature, and the high-temperature section position control system is used for adjusting the position of the roasting section. The roasting temperature can be adjusted according to the production condition, and the roasting effect is improved.

The invention relates to the technical field of power buoys, in particular to a power buoy self-positioning control method based on an MPC algorithm and a power buoy. The method comprises the following steps: firstly, establishing a kinematic model of a buoy, converting the kinematic model into a continuous state space model, secondly, establishing a continuous time system equation according to the kinematic model, and then, discretizing the continuous state space model to obtain a continuous time system equation; discretizing a state transition matrix and an input influence matrix in the continuous state space model according to a continuous time system equation, then establishing an objective function, constraining control parameters in a kinematic model, and finally solving an optimal solution of the objective function in a constraint range by adopting a linear quadratic programming function, so as to obtain a continuous state space model. Optimal control parameters are obtained, and optimal positioning and navigation control are achieved. A positioning control system and a power propelling system are arranged, the posture and position of the buoy can be rapidly and automatically adjusted, and the adaptability and flexibility of the buoy are greatly improved.

The invention provides a permanent magnet motor position-free control system DC bias compensator and a compensation method, and the compensator comprises an error calculation module which is used for comparing an original sampling current and an observation current of an alpha-beta coordinate system, and generating an error signal; the QPR regulator module is used for regulating the error signal through a quasi-proportional regulator QPR and outputting a direct-current bias observation value; the input compensation module is used for processing the direct-current bias observation value through the voltage and the counter electromotive force to obtain observation current, and the observation current is transmitted back to the error calculation module to form closed-loop negative feedback regulation; and the direct-current bias compensation quantity generation module is used for converting the direct-current bias observation value in closed-loop negative feedback regulation into the direct-current bias compensation quantity through a relation equation of a direct-current bias sampling value and a direct-current bias component and complex frequency variable conversion. And the direct current bias component in the original sampling current of the alpha-beta coordinate system is accurately compensated in a closed-loop negative feedback regulation mode.

The invention provides a switched reluctance motor angle position control system and an optimization calibration method. The method comprises the following steps: initializing system parameters of a switched reluctance motor; optimizing and calibrating a motor operation angle based on an improved Kepler optimization algorithm; and the motor performs real-time fine-tuning operation. An improved Kepler optimization algorithm is introduced, rapid global search is carried out, an angle calibration point candidate range is rapidly positioned in the initial stage of motor operation, and the time cost of manual intervention or blind calculation is reduced. Fusing a perturbation and observation algorithm, observing feedback data in a motor operation state, finely adjusting candidate calibration points, improving calibration precision, and ensuring adaptation to dynamic working condition changes; the sensor data is collected in real time, the controller and the upper computer work cooperatively, dynamic adjustment and optimization of calibration points are achieved, and therefore the synchronism and operation efficiency of the system are improved.

A system for performing interactions within a physical environment including a robot base that undergoes movement relative to the environment, a robot arm mounted to the robot base, the robot arm including an end effector mounted thereon and a tracking system that measures a robot base position indicative of a position of the robot base relative to the environment. A control system acquires an indication of an end effector destination, determines a reference robot base position, calculates an end effector path extending to the end effector destination and repeatedly determines a current robot base position using signals from the tracking system, calculates robot arm kinematics using the current robot base position and the end effector path and controls the robot arm to cause the end effector to be moved towards the end effector destination.

A robot having a transportation assembly, a robotic arm, and control systems is disclosed. A positioning control system for the robot is configured to communicate with the transportation assembly to provide commands to the transportation assembly such that the robot moves to a plurality of stations or along a path during the task. A robotic arm control system for the robot is configured to communicate with the robotic arm to provide commands to the robotic arm such that the robotic arm performs a series of operations to complete a task specific to a station or along the path.

The invention relates to the technical field of numerical control machining centers, in particular to a numerical control machining center motion positioning control system and method with visual recognition, and aims at solving the problems that in the prior art, contour and edge features of a workpiece cannot be accurately extracted, accurate description of the shape of the workpiece cannot be guaranteed, and the spatial position and posture of the workpiece cannot be accurately and rapidly solved. And the machining precision and efficiency of the workpiece cannot be guaranteed. According to the invention, the contour and edge features of the workpiece are accurately extracted through the visual identification module, accurate shape description is ensured, the spatial position and attitude of the workpiece are rapidly solved by combining the feature point matching of a three-dimensional model and a two-dimensional image, and the real-time performance is ensured through an efficient image processing algorithm and hardware acceleration. The world coordinate system position of the workpiece is obtained through coordinate transformation, and the machining precision and efficiency are guaranteed.

The invention discloses an automatic dispensing system for medicinal materials. The system comprises a medicinal material storing and taking cabinet which comprises a plurality of dispensing units, and each dispensing unit is used for storing medicinal materials and outputting the medicinal materials; the dispensing robot comprises a dispensing trolley, and the dispensing trolley is configured to be capable of moving to a target medicine falling position below the medicinal material storing and taking cabinet under the control of a control system; and the control system is connected with the multiple dispensing units and used for controlling the corresponding dispensing units in the multiple dispensing units to enable the medicine contained in the dispensing units to fall into the dispensing trolley running to the target medicine falling position according to the needed weight. The technical problem that in the prior art, a medicinal material dispensing system is low in working efficiency is solved.

The utility model discloses goods conveying and stacking equipment, and belongs to the field of goods transferring equipment. Comprising a conveying system used for moving goods from a first position to a second position; the first sensor is arranged on one side of the second position; the extraction system is used for moving the goods from the second position to a placement position; and the control system is electrically connected with the first sensor and the extraction system respectively. The conveying device moves the goods from the first position to the second position, the first sensor located at the second position recognizes the goods, the control system automatically controls the extraction device to move the goods from the second position to the placing position to be stacked in order, the overall automation degree is high, manpower does not need to be consumed, and the working efficiency is improved. And the stacking efficiency of the goods conveying and stacking equipment is higher than that of manual stacking.

An agricultural implement includes a frame including a center frame section, an intermediate frame section, and a wing frame section. A first actuator is configured to rotate the intermediate frame section relative to the center frame section and a second actuator is configured to rotate the wing frame section relative to the intermediate frame section. A first sensor is configured to sense a position of the intermediate frame section relative to the center frame section, and a second sensor is configured to sense a position of the wing frame section relative to the intermediate frame section. A control system is configured to independently control the first actuator and the second actuator to travel by a different percentage of a total displacement based on the sensed positions of the intermediate frame section and the wing frame section. Related methods and control systems are also disclosed.

Provided is an aircraft position control system that, during detachment of an aircraft mounted on a mobile body that moves, controls the relative position of the aircraft with respect to the mobile body, the aircraft position control system comprising: a position detection unit that is provided to the aircraft and acquires the position of the aircraft; and a control unit that controls a flight operation of the aircraft. The control unit acquires the movement speed and the movement direction of the mobile body on the basis of the detection result of the position detection unit, and causes the aircraft to fly upward on the basis of the acquired movement speed and movement direction of the mobile body.

The invention discloses a high-precision voice coil motor position control system and method. Based on the working principle of the voice coil motor, a mathematical model is established for the voice coil motor according to an electric balance equation and a force balance equation, and a transfer function of the voice coil motor is obtained through various parameters of the voice coil motor. According to the transfer function, the designed control algorithm can adaptively adjust the PID parameter gain according to the feedback difference error and error change of the voice coil motor control system, the membership function of fuzzy control is improved, the control precision of the voice coil motor control system and the robustness of the system are improved, meanwhile, the RBF neural network is adopted as a PID gain compensator, and the robustness of the system is improved. Through on-line learning and adjustment, the fuzzy control and the output control parameter increment of the RBF neural network are combined by setting the weight, so that the defect that the traditional PID control is easily interfered by the environment is overcome, and the anti-interference capability and the stability of the system are enhanced.

An agricultural implement includes a frame including a center frame section, an intermediate frame section, and a wing frame section. A first actuator is operably coupled to the center frame section and the intermediate frame section, and a second actuator is operably coupled to the wing frame section and the intermediate frame section. A first sensor is configured to sense a position of the intermediate frame section relative to the center frame section, and a second sensor is configured to sense a position of the wing frame section relative to the intermediate frame section. A control system is configured to control the first actuator and the second actuator to adjust the position of the intermediate frame section based at least in part on the sensed position of the intermediate frame section relative to the center frame section. Related methods and control systems are also disclosed.

The application discloses a kind of trolley online automatic oiling system and method, belong to industrial automation technical field.The high safety risk of operation, great labor intensity, low efficiency and the problem that positioning accuracy is difficult to guarantee exist in the operation state of belt-type baking machine or sintering machine trolley for manual oiling mode, the combination structure of three-axis servo module, follow-up device, positioning system and control system is used in the application, multi-axis motion control is realized by three-axis servo module, follow-up device completes the clamping and following positioning of trolley wheel, positioning system detects wheel position, and control system coordinates each component to execute online automatic oiling operation.The system is mainly used for the online automatic lubrication of belt-type baking machine, sintering machine trolley wheel bearing, improves the automation level and operation reliability of oiling process.

A working machine comprising an implement pivotable with respect to a loader arm and an actuator arranged to pivot the implement about a physical angular range of motion; wherein the hydraulic system

A system includes a tractor comprising a lifting hitch, and an implement comprising an implement frame carried by the lifting hitch. The implement frame has an integrated elongate toolbar carrying at least one row unit. A sensor is configured to sense a position of the at least one row unit relative to the ground. A control system is configured to receive a signal related to the sensed position of the at least one row unit relative to the ground and cause the lifting hitch to raise or lower a portion of the implement frame connected to the lifting hitch relative to the tractor based at least in part on the signal. Control systems and related methods are also disclosed.

Provided is a camera module, comprising a controller including a first position control unit generating a first position control signal indicating a first target position to which an object provided with an image sensor or a lens is to be moved, and a first master port outputting the first position control signal, a first driver including a first slave port connected to the first master port, a first driving unit providing driving force to the object based on the first position control signal, a second position control unit generating a second position control signal indicating a second target position to which the object is to be moved, and a second master port outputting the second position control signal, and a second driver including a second slave port connected to the second master port, a second driving unit providing driving force to the object based on the second position control signal.

The invention discloses a proportional servo valve element position control method based on a Luenberger state observer, and relates to the technical field of automatic control. According to the method, a valve element position control system is adopted for working, the system comprises a raw material tank, industrial lubricating oil is stored in the raw material tank, one side of the raw material tank is connected with a lubricating oil pump in a penetrating mode, and the lubricating oil pump is connected with the lubricating oil pump. The output end of the lubricating oil pump is in through connection with an adjusting pipe body, the top and the bottom of the adjusting pipe body are in through connection with proportional servo valves, one end of each proportional servo valve is in through connection with a metering pumping pump, and one end, located at the top of the adjusting pipe body, of the metering pumping pump is in through connection with a first density detection end; one end, located at the bottom of the adjusting pipe body, of the metering pumping pump is in through connection with a second density detection end, the first density detection end is in through connection with the bottom of the raw material tank, and the second density detection end is in through connection with the top of the raw material tank.

The application relates to a flexible material dynamic positioning control system and method based on real-time length detection, which comprises a transmission mechanism, a sensing mechanism, an encoder, an array air jet group, a peripheral system and a motion controller. The motion controller is connected to the sensing mechanism, the encoder, the array air jet group and the peripheral system. The motion controller is used for calculating the length and displacement of the flexible material according to the response time of the flexible material passing through the sensing mechanism and the conveying speed of the transmission mechanism, dynamically calculating the midpoint position of the flexible material according to the length and displacement of the flexible material, and determining the corresponding array air jet group of the flexible material according to the flexible material obtained by the peripheral system. When the center position of the flexible material reaches the position of the corresponding array air jet group, the corresponding array air jet group is triggered. The array air jet group can realize accurate air blowing sorting of the flexible material, realize adaptive adjustment of the air blowing position of the flexible material with different lengths, and meet the accurate sorting requirements of the flexible material with different lengths.

The automatic positioning control system comprises a plurality of light mark boxes, pipe diameter recognition probes, position recognition cameras and a control module, the light mark boxes and production conveying lines are arranged on the two sides of a flat car track respectively, and the light mark boxes and the production conveying lines are arranged in a one-to-one correspondence mode; each light mark box is connected with the light mark control box, each light mark box is provided with an identification color plate, colors displayed by the light mark boxes through the identification color plates are different, the pipe diameter identification probe and the position identification camera are arranged on the pipe conveying flatcar, the pipe diameter identification probe is arranged corresponding to pipelines stored on the pipe conveying flatcar, and the position identification camera is arranged corresponding to the light mark boxes. The pipe diameter identification probe and the position identification camera are connected with the control module; standardized manufacturing is adopted, and the more on-site parking positions are, the lower the cost is; automatic control is adopted, a visual system is combined, on-site manual intervention is effectively reduced, the operation efficiency of the small flatcar is improved, and on-site labor cost can be reduced.