404results about "Speed/accelaration control using electric means" patented technology

The invention provides an unmanned aerial vehicle motor rotating speed control method based on active disturbance rejection. The method comprises the following steps: 1) measuring the rotating speed of a motor by adopting a high-precision rotating speed sensor based on a quantum effect; 2) designing a tracking differentiator TD to smooth an expected rotating speed, and outputting a rotating speed tracking signal and a rotating speed tracking signal change rate; 3) introducing a dynamic weight matrix to form a dynamic weight expansion state observer DWESO, and taking an output state variable estimation value and a total disturbance estimation value as the input of the NLSEF; 4) automatically searching the optimal combination of the gain parameters of the DWESO by adopting an ALA (artificial Louver Mouse Algorithm), so that the optimal state variable estimation value and the optimal total disturbance estimation value are output to the NLSEF; compared with the prior art, the method for controlling the rotating speed of the unmanned aerial vehicle has the advantages that the dynamic response speed, the anti-jamming capability and the parameter adaptability of the system are remarkably improved, and the flight performance and the robustness of the unmanned aerial vehicle are improved.

The invention discloses a ground wire multi-machine synchronous traction pay-off scheduling method and system, relates to the technical field of high-voltage transmission line construction, and is used for solving the problem of insufficient multi-machine real-time tension synchronization precision in the existing method. A tension sensor and a speed sensor which are arranged on each traction device collect a tension value, a traction speed value and position coordinate data of a ground wire in real time, and transmit the data to a central scheduling controller; establishing a multi-machine unified time synchronization reference and tension reference model, calibrating a timestamp through a GPS module, and initializing a threshold value based on historical parameters; comparing tension values one by one to calculate a deviation vector sequence; activating a compensation algorithm to execute a speed fine adjustment and tension compensation instruction; iteratively calculating the feedback adjustment value until the deviation is stable; and integrating the synchronous data to the overall paying-off scheduling model to dynamically update the path planning and speed curve. According to the method and the system, the problem of insufficient multi-machine real-time tension synchronization precision in the prior art is effectively solved.

The invention relates to the technical field of automobile part optimization, in particular to an intelligent self-adaptive screw locking control method for a motor, which can acquire an image of an assembly area in real time and establish a three-dimensional coordinate model of a screw hole pose through a camera integrated at the front end of the motor and a three-dimensional visual recognition algorithm. According to the method, the position and the posture of the screw hole can be determined with high precision, so that the vertical alignment relation between the screwdriver blade and the target screw hole is ensured, and the consistency and the accuracy of locking operation are improved.

The invention belongs to the technical field of power transmission and transformation project construction, and provides an ecological environment protection method and system for a power transmission and transformation project, which can construct a frequency portrait of a bird flapping behavior in real time by fusing multiple technical means such as high-frame-rate visual perception, target tracking, individual flapping frequency extraction and frequency domain behavior modeling. The operation state of the rotating device is adaptively adjusted according to a frequency interference similarity principle, so that high-frequency phase dislocation disturbance with the most interference effect is triggered at the moment when birds enter a key critical area, the flight rhythm and the path recognition capability of the birds are effectively damaged, and the birds are promoted to deviate from a flight path of a power transmission equipment area; birds can be prevented from approaching a lead area in time, and the risks of short-circuit tripping, biological casualties and other events caused by the fact that the birds strike the lead are remarkably reduced.

According to the cleaning brush equipment and the control method thereof, the target surface type of a to-be-cleaned surface is determined, cleaning parameter matching is conducted according to the target surface type, the preset brush head rotating speed is obtained, the reasonable brush head rotating speed is matched according to different surface materials, and resource waste is avoided while the cleaning efficiency and effect are guaranteed. Furthermore, when the cleaning parameters are matched according to the target surface type, preset pressure is obtained, the contact pressure between the brush head and the to-be-cleaned surface can be detected in real time while the brush head of the cleaning brush equipment is controlled to clean the to-be-cleaned surface at the preset brush head rotating speed, and when the contact pressure exceeds the preset pressure, the to-be-cleaned surface can be cleaned. And controlling the rotating speed of the brush head to be reduced based on the contact pressure until cleaning is completed. A dynamic feedback mechanism is added between the brush head and the motor, so that the rotating speed of the brush head is adjusted according to real-time contact pressure, and the cleaning surface cannot be damaged during cleaning.

The invention provides a seed disc pay-off speed control method and device for preventing a seed rope from loosening and tensioning, and relates to the technical field of agricultural production.The method specifically comprises the steps that the advancing speed of a rope sowing machine and a seed rope tension signal are collected in real time, and effective data are obtained after filtering and noise reduction processing; calculating an expected tension reference value based on the traveling speed and the seed disc radius data, and comparing the actually measured tension with the expected tension reference value to obtain a tension deviation value; judging whether the seed rope is in a loose, tensioned or normal state according to whether the deviation value exceeds a preset tolerance range; if the state is abnormal and the deviation is in a controllable interval, calculating a speed compensation amount through a feedback control algorithm according to the size and direction of the deviation and the current speed; the basic pay-off speed is calculated according to the advancing speed and the seed rope winding density, the target rotating speed is generated after the compensation amount is overlaid and sent to the speed control executing mechanism, the seed disc is driven to rotate according to the target speed, the tension deviation is made to return to the tolerance range by adjusting the pay-off speed, and therefore the normal stress state of the seed rope is maintained.

The invention relates to a working method of a cleaning device, the cleaning device comprises a cleaning tank and a supply system for supplying water and air to the cleaning tank, and the supply system comprises an air pump for supplying air; the working method of the cleaning device comprises the steps that the cleaning device comprises multiple different working modes, and a corresponding air pump rotating speed dynamic adjusting strategy is set for each working mode; during working, the selected working mode information is obtained, the air pump is controlled to dynamically adjust the rotating speed of the air pump according to the air pump rotating speed dynamic adjusting strategy corresponding to the current working mode, and then work corresponding to the current working mode is completed. The invention further relates to a storage medium for storing computer instructions corresponding to the working method of the washing device. The invention further relates to a cleaning device applying the working method.

The present application is applicable to the technical field of autonomous driving. Provided are a velocity control method and apparatus for an autonomous vehicle, and a device and a medium. The method comprises: acquiring the current driving information data of a target vehicle, the current driving information data of surrounding vehicles, and trajectory data of a human-driven vehicle; constructing a simulated driving environment of the target vehicle; on the basis of the driving information data of the target vehicle and the driving information data of the surrounding vehicles, using an SAC algorithm to generate a synthesized trajectory, and running the synthesized trajectory in the simulated driving environment; on the basis of the running result and the trajectory data of the human-driven vehicle, calculating an assistance reward function value, a discriminator calculating a reward function value, and then optimizing the SAC algorithm; using the optimized SAC algorithm to generate a final synthesized trajectory; and on the basis of the final synthesized trajectory, controlling an acceleration and a velocity direction of the target vehicle. The method in the present application can improve the rationality of control over autonomous vehicles.

The invention provides an industrial servo motor operation control method and system, and the method comprises the steps: collecting the motion image data of load equipment in a preset track parameter, carrying out the preprocessing and positioning of the motion image data, and obtaining the real-time position coordinate data of the load equipment; determining theoretical position coordinate data corresponding to the load equipment at each acquisition moment based on a preset trajectory parameter, and comparing the real-time position coordinate data with the theoretical position coordinate data to obtain trajectory deviation data at each acquisition moment; on the basis of the trajectory deviation data in combination with motion correlation characteristics of the servo motor and a preset control target, candidate control instructions for generating a plurality of future control periods in each control period are determined; and evaluating and screening the candidate control instruction set based on a minimization strategy of the trajectory deviation data to obtain a target control instruction, converting the target control instruction into a signal, and outputting the signal to a servo motor driver. The precision of industrial production and the stability of the production process are guaranteed.

The invention is suitable for the technical field of cleaning equipment, and provides a control method and device of cleaning equipment, a main control board and the cleaning equipment. The method comprises the following steps: acquiring motion data aiming at a motion state of the cleaning equipment, and acquiring an expected speed; wherein the expected speed is used for representing the speed of the cleaning equipment after the wiping strip is switched between the first state and the second state of the wiping strip, the first state is that the wiping strip makes contact with the to-be-cleaned face, and the second state is that a preset gap exists between the wiping strip and the to-be-cleaned face; based on the motion data and the expected speed, determining predicted time when the cleaning equipment reaches the expected speed; and based on the predicted time and the preset scraping strip moving time, the scraping strip is controlled to be switched between the first state and the second state. According to the embodiment of the invention, the scraping strip can be accurately controlled to be switched between the first state and the second state, so that the scraping strip is accurately controlled to be in contact with or separated from the ground at proper time, and the cleaning effect is improved.

The invention provides a traveling wave rotating ultrasonic motor speed control method and system based on deep reinforcement learning. Firstly, a virtual dynamic model based on a long short-term memory (LSTM) network is constructed, the time-varying behavior of TRUM can be accurately captured, and the average prediction error is within 0.5%. Secondly, designing an intelligent controller based on a near-end strategy optimization PPO algorithm, and optimizing a reward function and structure to enhance the adaptability of a control strategy; simulation and experiment results show that the method realizes the quick response of 0.034 seconds and the tracking error of less than 0.21 rpm, and the error is maximally reduced by 0.42 rpm compared with the traditional controller. According to the method, the problems of insufficient modeling precision, low control precision, slow response speed, poor adaptive capacity to dynamic characteristics and the like in the prior art are effectively solved, and a new path is provided for application of the TRUM in high-precision complex tasks.

The invention discloses a response speed optimization method applied to an actuator of a ship electric control valve, particularly relates to the field of response regulation of the ship electric control valve, and aims to solve the problems of response delay and unstable speed regulation of the actuator under complex working conditions. Performing linkage analysis on the actuator signal behavior and the deviation trend, and accurately separating a distortion wave band in an inertia compensation threshold domain; a double-parameter mechanism based on a frequency domain energy level and a time domain return difference is introduced, a distortion identification coefficient is generated by means of machine learning, and whether correction operation is introduced or not is accurately determined, so that the speed regulation process has pertinence and controllability; a speed transition curve is formed by driving of a correction factor, and it is guaranteed that the regulation and control signal has the flexible adaptation capacity; a path numbering mechanism realizes traceability of a regulation track, a posterior deviation curve is iteratively combined with a feature set, a strategy is driven to evolve continuously, and the response speed and process stability of an actuator are integrally improved.

The invention discloses a control method for controlling the follow-up speed change of a drip irrigation disc of a seeder based on Beidou speed measurement. The control method comprises the following steps: S1, collecting and preprocessing position information and speed information of a tractor; s2, inputting the preprocessed data into a fusion calculation unit, and executing space-time weight calibration; s3, inputting the fusion speed sequence into a speed prediction network, extracting multi-scale features, and generating a speed guide feature map; s4, generating a target rotating speed instruction according to the mapping function and operation parameter modulation; s5, inputting a target rotating speed instruction to a motor control unit, and generating a current signal through dual-channel torque regulation and control; s6, a motor is driven to rotate the drip irrigation disc, the actual rotating speed is collected, and an error sequence is constructed; and S7, inputting the error sequence into a calibration module, generating a correction parameter to update a current signal, and realizing synchronous control. According to the invention, high-precision synchronous control of the drip irrigation disc on the speed of the tractor is realized, and the drip irrigation consistency, the response speed and the operation stability are improved.

The invention relates to the technical field of intelligent control, and discloses an intelligent hammer crusher control method and system based on artificial intelligence. The method comprises the steps that material characteristics are analyzed through near-infrared scanning, and vibration and acoustic signals are collected to obtain crushing state data; analyzing the energy conversion efficiency and the particle size distribution condition according to the data, and evaluating the crushing efficiency and the product quality; calculating the ratio of the optimal hammerhead linear speed to the feeding rate based on the evaluation result; and the optimization parameters are converted into equipment control signals to realize self-adaptive adjustment. The technical problems that traditional vibrating screen fixed parameter control cannot adapt to multi-coal-type changes, the multi-target constraint problems that screening efficiency and energy consumption are difficult to balance in the parameter optimization process, and a precise matching mechanism is lacked for control parameters and material characteristics are solved.

The invention discloses a horizontal rotary coating control method and system based on a neural network, and relates to the technical field of data processing, and the method comprises the following steps: obtaining surface point cloud data of a part at a spraying station inlet; obtaining the current curvature of the part according to the surface point cloud data; paint viscosity and environment temperature are obtained; inputting the current curvature, the coating viscosity and the environment temperature into a rotating speed prediction model, and outputting a predicted rotating speed; acquiring the current curvature, the coating viscosity and the environment temperature at a preset time interval, and updating the predicted rotating speed; and controlling the rotation speed of the part according to the predicted rotation speed. According to the method, the part data and the environment data on the horizontal rotary coating line are obtained in real time, the rotating speed of the part is dynamically adjusted through the rotating speed prediction model, paint film forming of the part at the proper rotating speed is facilitated, and the quality of the paint film is improved.

The invention relates to an express balance wheel sorting machine control method and device and a sorting machine, and aims to improve the cargo posture stability and transmission efficiency in the logistics sorting process. The method comprises the following steps: receiving goods sorting path information, and generating a synchronous control instruction including swing wheel disc angle deflection, goods linear speed and a four-wheel belt transmission mechanism; the deflection angle of each swing wheel disc is calculated in real time, and on the premise of ensuring stable conveying of goods and balanced stress of each roller, the optimal rotating speed of a driving wheel is dynamically solved by adopting a multi-target dynamic optimization model on the basis of transmission balance among the driving wheel, a tensioning wheel and a driven wheel, so that the vibration torque of each belt is minimum, and the transmission efficiency is maximized. The control device is composed of a path information receiving module, a control instruction generating module, a swing wheel disc angle control module, a linear speed control module and a shearing vibration control module, efficient, low-energy-consumption, cooperative and intelligent control and stable transmission of the multi-swing-wheel disc sorting mechanism in the sorting process are achieved, and the multi-swing-wheel disc sorting mechanism is suitable for a logistics automatic sorting system.

The invention discloses a coaxial unmanned aerial vehicle variable-speed variable-pitch control method and device, an unmanned aerial vehicle and a storage medium. The method comprises the steps of obtaining current flight state data and a target flight instruction of the unmanned aerial vehicle; the deviation between the target flight instruction and the flight state data is determined, and the total lift force requirement and the attitude control torque requirement of the unmanned aerial vehicle are solved based on the deviation; based on the total lift force demand and the attitude control torque demand, according to a pre-constructed rotating speed and propeller pitch cooperative distribution model, the target rotating speed and the target propeller pitch angle of the upper rotor wing and the lower rotor wing are solved with the minimum power consumption of a power motor as the target; and respectively converting the target rotating speed and the target pitch angle into a motor PWM signal and a steering engine control signal, and respectively outputting the motor PWM signal and the steering engine control signal to a power motor and a steering engine of the coaxial unmanned aerial vehicle. According to the scheme, the control precision of the coaxial unmanned aerial vehicle can be improved, the response speed is increased, the complex working condition adaptability is enhanced, the energy efficiency is optimized, and the safety is improved.

The invention provides a smart city super high-rise building night variable-speed pump energy-saving scheduling method and device and a medium, belongs to the technical field of building energy saving, and particularly relates to the steps that parameter measurement is conducted on a pipeline and a variable-frequency pump, vertical nodes of the pipeline are created, preset parameters are written in, and any frequency sequence is mapped into pressure increment of each vertical node; calculating night accumulated electric charge and tail end pressure margin for each skeleton, and outputting a global optimal pump speed curve and a pressure margin track; and positioning and calling the compensation frequency of which the pressure is lower than a preset pressure threshold time period, and re-evaluating the compensation frequency to obtain the electric charge and pressure margin. According to the invention, collection of field data is realized, a double-domain digital twin network is constructed, and intelligent scheduling control of a night water supply system is realized through frequency skeleton generation screening and global search optimization and through fine adjustment and convergence of local sensitivity. And the economical efficiency and the reliability of the night water supply system of the high-rise building are improved.

The invention discloses a method and equipment for controlling the virtual precession rotating speed of a micro-hemisphere gyroscope in a full-angle mode and a medium. The method comprises the following steps: enabling the micro-hemisphere gyroscope to be in the full-angle mode through three loops of amplitude, orthogonality and frequency tracking; applying a control force in the angle control equation to force the standing wave to self-rotate at a corresponding virtual angular velocity; in a standing wave precession state, identifying a total loop gain parameter in real time by using an adaptive identification technology; and the excitation voltage is multiplied by an external given excitation voltage to obtain a compensated excitation voltage, so that on-line compensation of the standing wave virtual procession is realized, and the accuracy and stability of the rotating speed of the virtual procession are improved.

The invention relates to a tobacco seedling transplanter, which comprises a rack, and is characterized in that the rack is provided with a tobacco seedling tray; a seat; a control mechanism; the invention relates to a tobacco seedling punching and transplanting mechanism, which comprises a seedling dropping motor, a charging tray, a separated seedling dropping device, a transmission mechanism and a seedling dropping device opening and closing control mechanism, the seedling dropping motor drives the separated seedling dropping device to rotate through the transmission mechanism, so that the separated seedling dropping device punches tobacco seedling planting holes in tobacco ridges, and the seedling dropping device opening and closing control mechanism is linked with the transmission mechanism to control opening and closing of the separated seedling dropping device; an energy mechanism; the water and fertilizer box is used for conveying water and fertilizer into the separated seedling casting device; and the driving mechanism comprises two driven wheels and two driving wheels, and each driving wheel is driven by an independent driving motor. The device has the advantages that tobacco seedling planting is completed while punching is conducted, and the problem that tobacco seedlings cannot be accurately planted into holes is solved; the rotating speed of the motor can be adjusted in real time, and tobacco seedling transplanting is ensured to proceed at a set speed.

The invention discloses a mechanical 3D radar control method and system, a storage medium and electronic equipment, and relates to the technical field of radar control. The method comprises the following steps: determining a scanning coverage area based on working state parameters of the mechanical 3D radar, and dividing the scanning coverage area into a plurality of scanning units; acquiring radar echo signals in each scanning unit, performing signal enhancement processing on the radar echo signals according to the spatial position information of each scanning unit, generating enhanced target echo data, performing time sequence analysis and coherent accumulation processing on the target echo data, and extracting frequency domain features based on a coherent accumulation result; performing target extraction on the target echo data according to the frequency domain features to obtain target feature information of each scanning unit; and determining control parameters of the mechanical 3D radar according to the target feature information, and controlling the mechanical 3D radar to execute according to the control parameters. By implementing the technical scheme provided by the invention, the resource utilization efficiency of the mechanical 3D radar can be improved.

The invention provides a method for controlling the operation movement speed of an automatic guide robot, and belongs to the field of PID control optimization, and the method specifically comprises the steps: S1, obtaining the operation path information of the automatic guide robot; s2, dividing the whole path into a plurality of speed control sections according to the path information; s3, according to the type of each speed control section, respectively setting the target speed of the automatic guide robot in the operation movement process; s4, collecting current speed data in real time in the actual operation process of the automatic guide robot, and calculating a current speed error in combination with the speed control section type; s5, the speed PID controller outputs a control speed instruction according to the current speed error, and the automatic guide robot is driven to move according to the target speed and complete the operation task; by means of the method, accurate control over the operation movement speed of the automatic guiding robot is achieved, and the operation efficiency of the automatic guiding robot is improved.

The invention relates to the technical field of servo control, in particular to a rotary table servo compensation method based on wind load prediction, and the method comprises the steps: obtaining the motion state data of a drive end and a load end in real time; obtaining a disturbance torque I and a disturbance torque II based on the driving end motion state data and the load motion state data, and generating an error signal by using the disturbance torque I and the disturbance torque II; inputting the error signal into a self-adaptive compensation model to output a compensation torque; and generating a servo control instruction by using the compensation torque, and controlling a driving end to move.

The invention relates to the technical field of data analysis, in particular to a pharmaceutical laboratory intelligent grinding process data analysis system which comprises the steps that a vibration audio signal of a grinding tank is collected in real time through a microphone; the method comprises the following steps: converting a time domain audio signal into a frequency domain frequency spectrum by adopting fast Fourier transform, identifying a first characteristic frequency and amplitude fluctuation thereof, monitoring abnormal harmonic components, extracting harmonic characteristics through a Mel frequency cepstrum coefficient, and judging an abnormal condition of a grinding state; and when the amplitude of the first characteristic frequency in the audio signal exceeds a preset threshold, judging that the particle size of the material reaches a critical value, triggering a rotating speed switching instruction, and finely adjusting the rotating speed of the motor through a PID control algorithm. Audio signals are collected through the microphone array, low-frequency tank vibration can be captured through audio collection, high-frequency abnormal friction noise can be monitored, time-domain signals are converted into frequency-domain frequency spectrums, and energy distribution is visually displayed.

The invention relates to a rice mill control method and device and rice mill equipment. The rice mill control method comprises the steps that a to-be-milled object is milled according to a first rotating speed; wherein the to-be-milled object comprises cereals and / or brown rice, and the first rotating speed is the rotating speed corresponding to the cereals milled by the rice milling machine equipment; periodically acquiring target image data of the to-be-milled object through a visual sensor arranged on a circular processing channel of the rice mill equipment; determining the real-time type of the object to be ground according to the target image data and the reference image data; and according to the real-time type, the rotating speed of a motor of a grinding assembly of the rice mill equipment is dynamically adjusted until the to-be-ground object is ground into polished rice. According to the technical scheme, visual detection is combined with rotating speed self-adaptive switching, the rotating speed can be automatically switched according to the type of the to-be-milled object, it is ensured that grain husking and brown rice grinding are both in the optimal rotating speed state, and the rice milling effect and the processing quality are improved.

The invention discloses a pepper harvester advancing speed two-stage regulation and control method based on a multi-source prediction model, and mainly relates to the field of pepper harvesters. The method comprises the steps that a high-speed camera and a torque sensor collect image information and a torque signal, the image information and the torque signal are preprocessed and then input into a machine vision model and a torque prediction model to obtain a predicted torque value corrected by an image processing technology, and after the predicted roller load condition is obtained through a mechanical model, the forward speed is preliminarily adjusted to enable the load to be in a normal value interval; load data on an upper conveyor belt and a lower conveyor belt of a separation device are collected, after the impurity rate is calculated, the impurity rate is input into a CNN-LSTM neural network model constructed by fusion time and space features improved by an ant colony algorithm to obtain the harvesting impurity rate condition, and after the advancing speed is further adjusted according to the predicted impurity rate, the load condition is monitored in real time. The speed regulation of the load condition in the two-stage speed regulation is prior to the speed regulation of the impurity rate condition. According to the invention, the forward speed of the harvester can be adjusted in real time according to the conditions of the roller load and the harvesting impurity rate.

The invention provides an air energy heat pump direct current motor intelligent speed regulation method and system based on self-adaptive fuzzy control. The method comprises the steps of obtaining original operation data; extracting dynamic characteristics of a short-time window from the original operation data set, and calculating to obtain a thermal load trend index; constructing a fuzzy controller, wherein the fuzzy controller comprises fuzzification, rule reasoning and defuzzification output; in the fuzzification, a thermal load trend index is mapped into a five-level fuzzy level by adopting a triangular membership function; combining the thermal load trend index with an operation mode to calculate a target wind speed; and the target wind speed is converted into a control signal, feedback data is collected after each regulation and control period is finished, a performance deviation index is constructed based on the feedback data, and correction parameters are output. According to the invention, a resonance frequency point avoidance mechanism and a voltage margin correction strategy are embedded, so that the system is kept stable, low in noise and high in efficiency under high-speed, low-speed or medium-speed operation conditions.

The invention discloses a winding control method and system for a stator core. The system comprises a pay-off wheel set, a wire feeding wheel set and a stator core rotating assembly. The pay-off wheel set comprises a pay-off driving wheel, and the pay-off driving wheel is driven by a pay-off motor to pay off; the stator core rotating assembly is driven by a winding motor to wind; after being sent out from the pay-off wheel set, an enameled wire penetrates through the wire feeding wheel set and is finally wound on the outer side of a stator core of the stator core rotating assembly, and the wire feeding wheel set is provided with an independent linear speed encoder used for detecting the linear motion speed of the enameled wire. The stator core rotating assembly is provided with a rotation angle encoder used for detecting the rotation angle of the winding motor. The independent linear speed encoder, the rotation angle encoder, the pay-off motor and the winding motor are electrically connected to a PLC. According to the winding control method, the product percent of pass and the product quality can be greatly improved.

A mower slope sensing system on a grass mowing machine. An elevation sensor may capture terrain elevation values for each of a plurality of different locations according to a latitude and a longitude of each of the locations on a field. An electronic controller may store the terrain elevation values, latitudes and longitudes, and adjust a mowing blade speed depending on changes in the terrain elevation values from a current location to a next expected location.

The invention relates to the technical field of electric wheelchair control, and discloses an automatic power-assisted control method, system and equipment for an electric wheelchair, and the method comprises the steps: responding to a power-assisted starting instruction sent by a power-assisted switch module, and obtaining the back electromotive force of a motor and the position information of a motor rotor; according to the back electromotive force of the motor and the position information of the motor rotor, the thrust direction of the electric wheelchair is determined; the actual output power of the motor is obtained, the actual output power of the motor is adjusted by combining the thrust direction of the electric wheelchair and the counter electromotive force of the motor, and the preset assistance strength requirement is met. Power is started through the power-assisted switch module, the thrust direction is judged by combining the positions of the motor and the motor rotor, high-price sensors for torque, angle and the like do not need to be additionally arranged, the control structure is simplified, the cost is reduced, and the actual output power is dynamically adjusted by obtaining the actual output power of the motor and combining the thrust direction and the counter electromotive force of the motor.