29928 results about "Control engineering" patented technology

The invention discloses a hydraulic pressure test tube machine and a tube body clamping centering device, in the tube body clamping centering device, two guide rods and a telescopic oil cylinder are arranged on a base side by side; corresponding ends of the two guide rods are respectively provided with a first sliding block, corresponding other ends of the two guide rods are respectively provided with a second sliding block; a fixed end of the telescopic oil cylinder is fixed on one end of the base, the fixed end of the telescopic oil cylinder is arranged corresponding to the second sliding blocks; a telescopic end of the telescopic oil cylinder is connected with the first sliding blocks, and is used for driving the first sliding blocks to slide along the guide rods, one of two clamping blocks is fixed on the two first sliding block, and the other one of the two clamping blocks is fixed on the two second sliding blocks; the first sliding block on one of the two guide rods is provided with a first rack, the second sliding block on the other one of the two guide rods is provided with a second rack, both sides of a linkage gear are respectively meshed with the two racks, the first sliding blocks and the second sliding blocks are adjusted by the telescopic oil cylinder to move towards each other or depart from each other. The scheme can solve the problems of high control precision and slow regulation efficiency of a plurality of oil cylinders of the tube body clamping centering device.

The embodiment of the invention provides an excavator handle control system for remote operation, a handle control method based on a Hall sensor is adopted, non-contact rocker data sensing is achieved, the influence of contact and movement abrasion on the service life of a handle is reduced, and the excavator handle control system has the advantages of being high in sensitivity and good in performance; the handle mechanism is more flexible to operate, and the service life of the handle is prolonged; a two-hand cooperative control mode is adopted, and two three-degree-of-freedom handles are used for simulating the driving environment of a real excavator, so that a good remote control effect is achieved, and the feeling of presence of an operator in the remote operation process is improved; the operation habits of a driver are fully considered, the walking and working of the excavator are respectively controlled through combination of different degrees of freedom of the left hand handle and the right hand handle, an operating lever of the real excavator is simulated in the aspects of structure, motion degree of freedom and working range, and the man-machine interaction environment of excavator driving is restored.

The invention discloses a control system for lithium battery power management, and relates to the field of lithium battery control, and the system comprises a voltage input module which is used for externally connecting voltage and supplying power to a battery power supply module and a time delay module; the battery power supply module is used for charging the battery; receiving the battery voltage information, and adjusting the voltage output to the battery according to the battery voltage; the battery module is used for a battery to store electric energy; compared with the prior art, the system has the beneficial effects that the output voltage of the battery power supply module is adjusted through the feedback module, the output voltage of the battery power supply module is relatively large at the beginning, and the charging voltage is reduced along with the increase of the battery voltage, so that a quick charging effect is constructed; whether battery charging is abnormal or not is detected through the time delay module and the charging fault detection module, the battery power supply module is adjusted to perform constant-voltage charging when charging is abnormal, and the battery charging effect is guaranteed.

The application discloses a kind of unmanned vehicle accurate parking methods of port crane scene, through the setting of desired accurate parking position, adjust the distance and direction of vehicle, guide vehicle accurate parking, through the position that template map has saved desired accurate parking, and the plane parameter of crane, improve the accuracy of vehicle stop, can improve the efficiency of loading and unloading box operation, increase the economic benefit of single vehicle unit time, simultaneously, through laser radar, the point cloud data of crane can be directly scanned and obtained, realize the accurate parking of port crane scene, do not need to make any modification to crane equipment and install any equipment, there is no special requirement to crane structure, size etc., with good universality, the characteristics such as low introduction cost.

This invention relates to the field of hydraulic engineering, and more particularly to a method for safety assessment and optimization design of large-flow aqueduct structures. The method includes: collecting displacement, strain, and temperature monitoring sequences based on a triple probe, completing grouping, coordinate and time registration, and establishing a monitoring baseline; constructing a spatial model including support nonlinearity and fluid-structure boundary conditions, applying loading conditions, and obtaining response predictions; aligning monitoring and prediction in time and location, performing hierarchical Bayesian filtering inversion, and obtaining parameter posteriors and structural health; under the integration of in-service monitoring and accelerated degradation characteristics, using multi-task learning to generate material evolution and lifespan intervals, and automatically generating and simulating optimization schemes under reliability and maintainability constraints. This application forms a closed loop from assessment to design, effectively enhancing data comparability, traceability of uncertain information, and adaptability of the scheme to engineering projects.

The invention relates to the technical field of intelligent traffic, and discloses a device for intelligent automatic control of cleaning of a hydraulic supporting rod. The device comprises a closed disc, the interior of the closed disc is movably connected with a movable sliding block and a reset spring, the lower part of the closed disc is movably connected with a pollution discharge track, theinterior of the pollution discharge track is movably connected with a pollution control sliding block, the right side of the closed disc is movably connected with a transmission wheel, the upper partof a transmission wheel valve is movably connected with a cleaning wheel, and the left side of the cleaning wheel is movably connected with a supporting base. The cleaning wheel is controlled to startrotating to drive the movable sliding block to rightwards move, the movable sliding block resets under the elasticity effect of a movable spring, meanwhile, the lower part of the movable sliding block is movably connected with a pollution removal brush, dust and the like on the outer side of the hydraulic rod is removed through motion of the pollution removal brush, thus the effect of cleaning the outer side of the hydraulic rod is achieved, and the working efficiency is improved.

Provided are a method, system, and non-transitory computer-readable medium for real-time autonomous path planning for a robotic device. The method includes receiving data about the robotic device in a three-dimensional workspace, encapsulating objects in the environment of the robotic device including the robotic device, a target, and one or more obstacles in simulated robotic space, calculating a direction of movement for the robotic device according to three virtual forces including a virtual attractive force, a virtual repulsive force, and a virtual tangential force acting at least partially perpendicularly relative to the virtual repulsive force, mapping each virtual force in the three-dimensional workspace into torque vectors in the simulated robotic space at each joint, converting a sum of the torque vectors into one or more commands for the robotic device defining a path to reach the target, and sending the one or more commands to the robotic device.

A trailer control box may receive a wireless message from a controller of the tractor. The trailer control box may validate and authenticating the message. The trailer control box may control an emergency-brake valve based on the message when the message is an emergency-brake command. The trailer control box may control a service-brake valve based on the message when the message is a service-brake command. The trailer control box may control at least one switch to operate trailer lights based on the message when the message is a light command. In certain embodiments, autonomous-capable socket is mounted to a trailer and includes: a chamfered outer casing, a plurality of electrical connectors, a service-brake air aperture, and an emergency-brake air aperture. The autonomous-capable socket required a single autonomous connection by an autonomous tractor.

A control method is for a compressed air supply system with which a control device is associated. The method includes: receiving via the control device a supply demand, activating a compressed air generator to provide compressed air at a compressed air connection when the control device receives a supply demand, identifying a regeneration execution time depending on the supply demand and / or a degree of saturation of an air dryer, activating a switching valve to open a branch line when the control device identifies a regeneration execution time, and returning compressed air from the branch line counter to a filling direction through a pneumatic main line to regenerate the air dryer. A control device is for carrying out the method. A vehicle includes such a control device.

This invention provides a multifunctional adaptive watermelon harvesting robot, including a vehicle body, a recognition and positioning module, and a telescopic push-pull module. The vehicle body is used for position movement; the recognition and positioning module is located at the end of the vehicle body for locating the watermelon's position; the telescopic push-pull module is also located at the end of the vehicle body and includes an upper shovel assembly and a lower shovel assembly. The lower shovel assembly can extend to the ground to scoop up the watermelon, and the upper shovel assembly can move to cut the watermelon vines that have been scooped into it. This invention uses the recognition and positioning module for coarse positioning, combined with the lower shovel assembly to scoop up the watermelon close to the ground, eliminating the need for a lengthy precise positioning process. It can quickly grab the watermelon, and then the upper shovel assembly moves downward to close and cut the vines with the lower shovel assembly. This eliminates the need to search for the vines, quickly removes the vines, ensures the safety of the watermelon, maintains the integrity of the watermelon during harvesting, reduces operation time, and effectively improves the efficiency of watermelon harvesting.

An adaptive air intake control system and method for cooling towers, coupled with airflow diversion for energy saving, belongs to the field of adaptive control system technology. The system includes an information acquisition unit, an execution unit, and an adaptive control unit. The information acquisition unit collects environmental wind parameters and key operating parameters in real time. The execution unit includes multiple independent fan blade groups with circumferential partitioning and vertical layering for precise execution of commands. The adaptive control unit executes operational decisions, selecting the dominant operating mode from airflow diversion energy saving, anti-freezing energy saving, and anti-drip energy saving modes; it then identifies and outputs wind condition characteristics and thermal anomaly indicators through key parameter status identification, and generates control commands based on the adaptive control strategy and command generation. The system forms a closed loop, capable of adaptively adjusting the identification model and control strategy based on feedback. A corresponding control method is also disclosed, enabling intelligent and precise control of air intake in cooling towers under complex environments, improving cooling efficiency and energy saving while ensuring anti-freezing safety.

This invention discloses a power cord anti-pull mechanism and an industrial six-axis robot, belonging to the field of industrial robot technology. The power cord anti-pull mechanism is applied to equipment requiring electrical power for operation. It includes a power cord, a power supply box, and an anti-pull device. One end of the power cord is equipped with a power plug, and the other end is used to connect to the equipment requiring electrical power. A power socket is provided on one side of the power supply box, into which the power plug can be inserted to connect to the power supply. The anti-pull device is disposed on the power supply box and includes a fastening device and a power device. The fastening device is used to secure the power plug after it is inserted into the power socket, preventing pulling between the power cord and the power socket. The power device provides power to the fastening device to secure the power plug. The power cord anti-pull mechanism can prevent problems such as poor contact or disconnection between the power cord and the power supply box during the operation of the industrial six-axis robot.

The application belongs to the technical field of power distribution network automation, and particularly relates to a power distribution transformer intelligent regulation and control method and system based on energy efficiency evaluation, which comprises the following steps: collecting the low-voltage side current, rated current, no-load loss and load loss of a power distribution transformer, and calculating the load rate; obtaining the fluctuation intensity according to the standard deviation of the load rate in a sliding window, and obtaining the change gradient by subtracting the load rates at adjacent time points; obtaining the direction consistency index according to the consistent degree of the directions of the change gradient in a preset number of steps; calculating the noise covariance according to the fluctuation intensity and the direction consistency index, and obtaining the smoothed load rate by substituting the Kalman filter equation; dynamically determining the threshold step number according to the direction consistency index, calculating the smoothed total loss, and determining the preset energy efficiency threshold according to the no-load loss and the load loss. The application reduces the tap changer regulation frequency and prolongs the service life of the contact.

Household appliance (24) comprising a body (25) and a control unit (26), wherein the control unit (26) is pivoted about a pivot axis (A Schwenk ) is pivotably mounted, wherein the operating unit (26) is connected to a means (1) for fixing the operating unit (26) in a predetermined pivoting position.

A control system (10) includes a first identification unit (11) for identifying, by a first identification model, first control information for controlling a wireless network, a second identification unit (12) for identifying, by a second identification model, second control information for controlling the wireless network, a validity determination unit (13) for determining validity of the first control information according to communication performance of the wireless network predicted based on the first control information, and a selection unit (14) for selecting control information for controlling the wireless network from the first control information and the second control information according to a determination result of the validity.

A power actuator for actuating separate mechanically driven members includes a motor and a drive gear configured to be selectively driven in opposite directions. A common gear is configured in operable communication with the drive gear to be selectively driven from a home position in opposite directions in response to movement of the drive gear. A first drive member is attached to the common gear with a first cable extending between the first drive member and one of the mechanically driven members. A second drive member is attached to the common gear with a second cable extending between the second drive member and the other of the mechanically driven members. Movement of the common gear from the home position in one direction moves of one mechanically driven member and movement of the common gear from the home position in an opposite direction moves the other mechanically driven member.

The invention provides an underwater robot multi-task rapid adaptive control method based on meta reinforcement learning. The method comprises the following steps: constructing an underwater robot dynamic model and a thrust distribution strategy matrix; three reinforcement learning controllers, namely, a non-overshoot position controller, an overshoot allowing position controller and a propeller flexible control controller, are respectively designed according to diversified task requirements; introducing a meta-learning mechanism to build a meta-training platform, and training the three reinforcement learning controllers to obtain a group of optimal initialization parameters; and deploying the obtained optimal initialization parameters and the subtask reinforcement learning controller to the underwater robot, and carrying out two-stage training according to different tasks. Finally, when the controller is deployed in engineering practice, the output of the propeller can be intelligently adjusted according to the relative distance and speed information, calculated in real time, between the controller and the target position, and it is ensured that accurate position control can be achieved in various task scenes. The method aims at meeting the requirement for rapid self-adaption of multiple tasks of the underwater robot in the complex and changeable underwater environment, and accurate and flexible response to position control is achieved through the control method based on meta reinforcement learning when the task requirements change.

Provided is a power amplifier system based on in-phase power synthesis, including an input port; an output port; a plurality of power amplification branches, each of the plurality of power amplification branches is connected to the input port, the plurality of power amplification branches include at least one main power amplification branch and at least one auxiliary power amplification branch, each of the plurality of power amplification branches is configured to amplify an input signal of a same phase received from the input port; and an in-phase synthesizer is connected between the plurality of power amplification branches and the output port, the in-phase synthesizer is configured to perform power synthesis on the amplified signal at the same phase output from each of the plurality of power amplification branches to obtain a synthesized output signal, and transmit the synthesized output signal to the output port for output.

The utility model discloses a kind of feeding mechanism, including the rotation setting of discharging disc, discharging disc is used to wind hose, still include hose adjusting mechanism, hose adjusting mechanism includes the rotation setting of driving wheel and pressure roller, the driving motor of control driving wheel rotation, slidingly arranged counterweight, gyroscopically setting on the roller of counterweight, pressure roller is oppositely arranged with driving wheel, and pressure roller slidingly arranged in the upside of driving wheel, roller is located in the downside of driving wheel, after hose passes through the gap of pressure roller and driving wheel, around the downside of roller.The utility model is set through counterweight and roller, constitute dynamic tension system, automatically adjust tightness when hose conveying, release hose expansion force, prevent skidding or tensile deformation, significantly reduce hose conveying error rate.

The utility model belongs to numerical control bending machine field, specifically speaking, it is quick die change and angle calibration device of numerical control bending machine, including support seat, the top of support seat is connected with fixed link, the top of fixed link is connected with top plate, the top of top plate is connected with hydraulic cylinder, the piston rod bottom of hydraulic cylinder is connected with movable plate, the bottom of movable plate is connected with two top supports, through the structural design of support seat, fixed link, top plate, hydraulic cylinder, movable plate, top support, bottom support, top die mounting mechanism and bottom die mounting structure, the function that a plurality of models of moulds were changed has been realized, the problem that single only can replace one model mould has been solved, the efficiency of mould replacement has been improved, can be effectively locked in the structure design of locking mechanism after changing, prevents the problem of accidental rotation, improves the stability when using the mould.

The utility model belongs to ventilation system technical field, and disclose detachable maintenance's variable air volume ventilation system filter device structure, including ventilation frame, the surface of ventilation frame is connected with the connecting frame, the inside jointing of connecting frame has two clamping plates, two clamping plates are connected with filter fan piece, the inside of ventilation frame is connected with ventilation fan, the utility model discloses through the outside expansion function of composite expansion spring makes the slide of upper side and the slide of lower side always receive the opposite support force, makes two slides receive the external force and opposite approach simultaneously also make two slides opposite reset separation, make the limiting rod with the inside opposite jointing fixed of connecting frame under the magnetic attraction of first magnetic absorption piece and second magnetic absorption piece, thereby convenient with clamping plate and filter fan piece and connecting frame clamping installation, avoid the situation that filter fan piece appears to fall off, and convenient with clamping plate and filter fan piece and connecting frame separate dismounting, be convenient for the maintenance to clamping plate and filter fan piece.

This utility model discloses a circuit breaker with an automatic recovery structure, comprising: a circuit breaker body; a disconnection operating mechanism installed and connected to the inner front end of the circuit breaker body; a rotational recovery mechanism movably installed inside the circuit breaker body and fixedly connected to the disconnection operating mechanism; an automatic recovery mechanism installed and connected to the circuit breaker body and connected to the rotational recovery mechanism; and a sensing control mechanism installed and connected to the inner front end of the circuit breaker body. This utility model discloses a circuit breaker with an automatic recovery structure that achieves higher overall recovery efficiency by using infrared sensing through the sensing control mechanism to control the automatic recovery mechanism for automatic recovery.

This application discloses a washing machine, including an outer drum, an inner drum, a controller, and a water level detection device. The controller is configured to: when the washing machine is in the start-up washing stage and the frequency value detected by the water level detection device is a preset initial frequency value, control the inner drum to rotate for a preset rotation time so that the clothes in the inner drum absorb liquid; obtain the target frequency value of the liquid in the outer drum detected by the water level detection device; obtain the difference between the target frequency value and the reference frequency value corresponding to the start-up washing stage, and correct the reference frequency value corresponding to each washing stage of the washing machine based on the difference. In the start-up washing stage, when the frequency value of the liquid level in the outer drum reaches the preset initial frequency value, the washing machine of this application corrects the reference frequency value of each washing stage based on the difference between the target frequency value measured after the clothes absorb liquid and the reference frequency value of that stage, thereby achieving precise control of water consumption in the washing task.

This invention discloses a series-parallel hybrid power flow control method and system, applied in the field of power grid power flow control. The method includes: determining power grid demand information based on key operating data of the transmission network; determining the equivalent active power control quantity of UPFC, the equivalent power flow regulation quantity of SSSC, and the equivalent reactive power control quantity of STATCOM based on the quantification results of the demand information, the first constraint data of the series-parallel hybrid power flow control device, and the second constraint data of the transmission network; and injecting equivalent voltage and equivalent current into the transmission network through the series-parallel connection of UPFC, SSSC, and STATCOM to regulate the key operating data of the transmission network. When power flow control is required in the transmission network, this invention injects controllable voltage and current into the transmission network through UPFC, SSSC, and STATCOM to achieve adaptive control of power flow on transmission network lines.

The application relates to a main shaft fault identification method for a wind driven generator under a variable load operation state, and the method comprises the following steps: acquiring and storing at least two equal-angle interval sampling vibration signals in orthogonal directions in the radial plane of the front and rear rolling bearings of the main shaft and corresponding rotating speed signals; judging whether the storage amount of the equal-angle interval sampling vibration signals reaches a preset storage amount, if the judgment is yes, performing order spectrum calculation on the equal-angle interval sampling vibration signals, and extracting a fault feature vector; judging whether to trigger main shaft fault diagnosis according to a real-time vibration effective value, if the judgment is yes, inputting the fault feature vector into a pre-constructed confidence rule base model, obtaining the confidence degree distribution of each fault state through confidence reasoning, and identifying the unbalance and misalignment faults of the main shaft of the wind driven generator according to the confidence degree distribution. Compared with the prior art, the application can accurately extract non-stationary fault features under the variable load operation state of the wind driven generator, and improves the accuracy and reliability of fault diagnosis.

The techniques described herein relate to systems and methods for characterization of multiple electric motors. An example method for processing multiple electric motor designs into outputs of respective performance evaluations across different operating conditions using machine learning includes mapping input geometric parameters to at least one of a plurality of electric motor designs, and inputting the plurality of electric motor designs to at least one machine learning model and outputting, from the at least one machine learning model, performance evaluations for the plurality of electric motor designs under a variety of operating conditions, the at least one machine learning model trained to generate the performance evaluations in accordance with control waveforms for the plurality of electric motor designs.

The application relates to a kitchen air conditioning system and a control method thereof, and the kitchen air conditioning system comprises an air conditioning assembly, a first casing, a compressor, a condenser, an evaporator and a sterilization module, the compressor, the condenser and the evaporator are connected through refrigerant pipelines; an air outlet channel is arranged in the first casing, the evaporator and the sterilization module are arranged in the air outlet channel, and the air outlet channel is provided with a first air inlet and an air outlet which are communicated with a kitchen room; the application further comprises a detection module for detecting the number of bacteria and / or viruses in the kitchen; a controller is electrically connected with the detection module and the sterilization module, and the controller is configured to control the sterilization module to work according to the detection result of the detection module. The system can sterilize the bacteria in the kitchen air while realizing refrigeration, so as to improve the kitchen environment and improve the user experience.

The application discloses a pose-deformation joint estimation method and system for micro contact assembly process, a workpiece is scanned by a mobile device from multiple perspectives, and a global point cloud model of the workpiece is reconstructed. Next, the overall pose parameters and the local surface topography of the workpiece are solved synchronously, and then a displacement field and a strain field are constructed to quantitatively represent the deformation state. Subsequently, the image, point cloud, pose and deformation parameters are fused, and a pre-trained joint estimation model is used to realize rapid prediction of the current coupling state of the workpiece. Through the built-in consistency verification and online updating mechanism, the reliability of the prediction result is ensured, and the final reliable state estimation is converted into a robot assembly correction instruction in real time, thereby forming a closed loop of perception, estimation and control. The application can realize sub-millimeter level pose measurement and high-precision deformation prediction, significantly improve the dynamic adaptability, robustness and automation level of the assembly process, and is suitable for automatic assembly of high-precision components in the fields of aviation, aerospace and the like.

The present disclosure relates to methods and apparatuses for SCell activation and dynamic measurement configuration change. A UE may: receive, from a BS, configuration information including at least one of an L1 measurement configuration, an L3 measurement configuration or an LTM candidate configuration for at least one candidate cell; receive, from the BS, an indication for activating or deactivating at least one of the following in the L1 measurement configuration: a report configuration, a resource configuration or a list of candidate IDs associated with the report configuration; and transmit, to the BS, a measurement report based on the configuration information and the indication.

The utility model discloses a kind of overhead line horizontal wheels of stacking machine, it is related to stacking machine technical field, including mounting plate, the outside of mounting plate is provided with two adjusting base plate, the outside of each adjusting base plate is provided with guide wheel assembly, the outer surface of adjusting base plate is fixedly connected with mounting disc, the inside rotation of guide wheel assembly is installed with bearing, the inside of adjusting base plate is provided with a group of fixed long holes.This application is provided with adjusting base plate, fixed long hole, limiting bolt and fixed mechanism etc., by optimizing guide wheel base plate structure design, using rounded rectangular long hole layout, the convenience and positioning accuracy of guide wheel installation adjustment are significantly improved, limiting bolt can realize the fine control to the running track of stacking machine, the application range is significantly improved, fixed mechanism is convenient for guide wheel to be fixed and replace, greatly simplify the steps of guide wheel installation and replacement, reduce the working intensity of staff, improve the practicability of device.