52 results about "Active feedback" patented technology

The invention discloses a magneto-rheological suspension semi-active feedback control system based on laser radar and multi-sensor fusion. The magneto-rheological suspension semi-active feedback control system comprises a radar assembly, a sensor assembly and a feedback control assembly which are integrally installed on a vehicle body. Related road surface and vehicle driving data are obtained through the laser radar, the vehicle attitude sensor and the vehicle speed sensor, the collected data are analyzed and processed through the data processing unit, and real-time road condition scores and vehicle driving parameters are obtained; generating a suspension control signal according to the real-time road condition score and the vehicle driving parameters, and transmitting the suspension control signal to a suspension controller; the suspension controller transmits current to the magnetorheological dampers, and therefore the magnetorheological dampers are controlled to output damping force to the corresponding wheels. The response speed of the magneto-rheological suspension can be remarkably increased, the adaptability of the magneto-rheological suspension to complex road conditions is enhanced, and therefore the driving stability, controllability and riding comfort of a vehicle are remarkably improved.

The invention discloses a power monitoring system host security micro-isolation method and system, particularly relates to the technical field of power terminal security isolation, and aims to monitor electromagnetic interference and quantum state changes in real time and improve the stability and security of a quantum key distribution process in combination with quantum error correction and dynamic prediction technologies. A high-confidentiality encryption key is generated through the randomness of a quantum key generator, the interference level is monitored in real time in a high electromagnetic interference environment, a security protocol is automatically triggered, and parameters of a quantum system are adjusted through an active feedback mechanism; a dynamic Bayesian network is utilized to predict entanglement attenuation of a quantum state, an information exchange behavior of a quantum system is analyzed through quantum entanglement entropy, the attenuation degree and interaction intensity of the quantum state are comprehensively analyzed, and a dynamic micro-isolation strategy is implemented according to an analysis result; the reliability of quantum key distribution is improved, and the anti-interference capability of a power monitoring system in a complex electromagnetic environment is enhanced.

The invention belongs to the technical field of hypersonic flight vehicle control, and relates to a rigid-elastic coupling-oriented active and passive integrated control method for a hypersonic flight vehicle. The invention aims to realize stable tracking control of the elastic hypersonic flight vehicle. The method comprises the following steps: constructing a longitudinal dynamic model of the elastic hypersonic aircraft; self-adaptive identification of the elastic vibration frequency is realized through a cascaded self-adaptive filter; an elastic modal filtering estimation method is designed, and high-precision and low-cost elastic modal state quantity is provided for subsequent active feedback controller design; and then rigid-elastic coupling model decomposition is carried out, the control performance is ensured by using active disturbance rejection passive control for a rigid body subsystem, an RBF neural network is introduced for an elastic subsystem, an elastic mode is actively inhibited by using sliding mode control, and stable tracking of a reference instruction is realized. The method is an active and passive integrated control method for the hypersonic flight vehicle oriented to rigid-elastic coupling, and the application prospect is wide.

The invention provides a shank alternating type stretching massage frame and a control system thereof, belongs to the technical field of leg massage equipment, and solves the technical problems that an existing massage frame is single in function, large in transmission gap, obvious in shaking, difficult to give consideration to functionality and safety and the like. Comprising a backrest assembly and a controller, an adjusting assembly is arranged on the front side portion of the backrest assembly, a tendon stretching assembly is arranged at the front end of the adjusting assembly, a foot massage assembly is arranged at the front end of the tendon stretching assembly, the adjusting assembly, the tendon stretching assembly and the foot massage assembly are all electrically connected with the controller, and the backrest assembly, the adjusting assembly, the tendon stretching assembly and the foot massage assembly are all wrapped with outer covering layers. The system comprises a control module, an execution mechanism, an information acquisition module and an active feedback module. The recliner is adopted to guarantee stable operation, double functions of stretching and foot massage are achieved, the adjustable backrest is used for meeting the low-load requirement of people suffering from lumbar disc herniation, a closed-loop control system guarantees that parameters are accurate and controllable, and the use comfort and safety are both considered.

The invention provides a wind power plant active power control method, system and device and a storage medium, and the method comprises the steps: carrying out the first amplitude limiting processing of an obtained initial active target value, and obtaining an active reference value; obtaining a proportional control parameter and an integral control parameter of PI control according to the active reference value and the actual active feedback value; performing anti-saturation threshold parameter fuzzy adjustment based on the response time and the response time variation of the current execution period and the previous execution period to obtain an anti-saturation threshold parameter; and performing PI control on the active power based on the proportional control parameter, the integral control parameter and the current integral value to obtain an active given value. On the basis of the PI controller, a control mode with the anti-saturation threshold parameter fuzzy regulator and the integral saturation limit value self-adaptive switching as the core is added to achieve active power anti-saturation control over the wind power plant, the occurrence frequency of integral saturation of the PI controller is reduced through amplitude limiting processing, and the self-adaptive PI controller is optimized.

Large Language Model (LLM) driven proactive scheduling may be provided. First, a proactive feedback module may be used that gathers user requests and device feedback. Next, an instructive interpreter module may be used that receives the user requests and the device feedback and produces instructive prompts based on the user requests and the device feedback. Then a user-reinforced scheduling optimization module may be used that receives responses to the instructive prompts and continuously enhances bandwidth scheduling based on the receives responses.

The invention discloses a big language model active feedback knowledge distillation method, which belongs to the technical field of artificial intelligence, and comprises a first module and a second module, the first module is composed of a teacher big language model library, a lightweight student model and an input sample, and the second module is composed of an output sample and a fine tuning teacher model; the knowledge distillation method comprises the following steps: S1, a lightweight student model carries out supervised learning by inputting a sample; s2, performing knowledge distillation on the lightweight student model by the teacher big language model library; s3, the lightweight student model outputs knowledge through knowledge distillation to form output samples, and m% of the output samples are screened and sampled as feedback samples; s4, inputting the feedback sample into a teacher large language model library for fine tuning and forming a fine tuning teacher model, and performing knowledge distillation on the lightweight student model again through the fine tuning teacher model; according to the method, the generalization ability of the model can be enhanced, and the knowledge transmission efficiency and effect are improved.

The invention discloses a VSG control method based on frequency deviation feedforward-feedback composite control, and belongs to the technical field of power system control, after a power coupling model based on VSG control is established, reactive power feedforward control GDQ (s) based on frequency deviation is introduced, and enough transient damping support is provided for a system; meanwhile, active feedback control GDP (s) based on frequency deviation is introduced, the active steady-state deviation of the VSG system after GDP (s) active power compensation is introduced is calculated, parameter design is carried out on feedforward-feedback control based on frequency deviation, transient damping support is achieved, and meanwhile the active steady-state deviation caused by fixed virtual damping in VSG control under power grid frequency disturbance is eliminated. The control parameter design is simple, and the stability of the virtual synchronous generator grid-connected system is improved.

The utility model relates to the technical field of radio frequency and microwave, in particular to a linearization circuit of a power amplifier, which comprises the power amplifier used for amplifying an input signal and providing required output power; the bias circuit is used for providing bias voltage for the power amplifier and controlling the change characteristic of a quiescent operating point of the power amplifier along with the temperature and the power; the active feedback circuit comprises a first connection point P1, a second connection point P2 and a third connection point P3, the active feedback circuit effectively reduces nonlinear distortion of the power amplifier through a negative feedback mechanism, and the nonlinear distortion of the power amplifier is effectively reduced by adjusting a first resistor R5, a second resistor R4, a third resistor R1 and a fourth resistor R3. The feedback circuit can be controlled to work in a critical region of a saturation region and a linear region, so that the linearity of the power amplifier can be optimized.

Disclosed are systems and techniques to improve coherence of qubits experiencing fluctuating electric potential caused by the environment. In some implementations, a processing device implementing the disclosed techniques includes a first (second) qubit structure formed using a first (second) set of electrodes electrostatically confining a first (second) electron in a direction lateral to a film, the film including a condensed phase of one or more inert gas elements. The processing device further includes a feedback circuitry to subject the first qubit structure to a probe signal, receive a response signal caused by an interaction of the probe signal with the first qubit structure, generate, using the response signal, a correction signal, and subject the first qubit structure and the second qubit structure to the correction signal.

The application discloses a kind of robot interaction method, device, equipment and medium.Therein, the method includes: by detecting input interaction operation information generated by acting on robot input component;According to the input interaction operation information and robot state information, determine the feedback interaction operation information to be used by robot;According to the feedback interaction operation information, control robot feedback component to execute active feedback interaction action.This technical solution solves the problem that people's emotions cannot be intuitively conveyed to the machine through touch point press and other interaction methods, resulting in an unnatural and smooth interaction process, and achieves the beneficial effects of information input and emotional release of the human side in the interaction process through natural and direct operations such as pinching, pressing, rubbing, rubbing, patting and poking.

An active feedback RF resonator has a signal loop having a signal input and a signal output. The signal loop has a variable gain stage and at least one variable resonator, each variable resonator comprising an inductance element and a variable capacitance element comprising a number of switched fixed value capacitors and a variable capacitor. A phase noise of the active feedback RF signal has a maximum value for an operating frequency of the variable resonator that is based on an operating range of the variable capacitor.

The application discloses a communication flow control method, device and equipment and a storage medium, and relates to the technical field of communication flow control, and specifically discloses the following technical scheme: a step sequence corresponding to a to-be-executed communication flow and a conditional transfer rule are acquired; a target primitive instance matched with a current flow step is acquired from a preset primitive pool, and the target primitive instance is activated; the target primitive instance is driven to execute an asynchronous communication operation, and a step execution result and a condition identifier fed back by the target primitive instance are received; a target step is determined from the step sequence according to the step execution result, the condition identifier and the conditional transfer rule, and the current flow step is updated to the target step. According to the application, the step sequence corresponding to the to-be-executed communication flow and the conditional transfer rule are acquired, and the asynchronous operation and the active feedback execution result are encapsulated by using the primitive instance. Compared with the prior art, the application reduces the state management complexity, eliminates the logic fragmentation, and thus improves the development and maintenance efficiency of the embedded communication flow.

The utility model discloses an active feedback gear motor capable of adjusting a cam included angle, comprising a gear motor main body, one end of the gear motor main body is provided with an output shaft, one end of the output shaft far away from the gear motor main body is fixedly connected with a first cam, and one side of the first cam far away from the output shaft is fixedly connected with a connecting shaft. According to the active feedback gear motor capable of adjusting the included angle of the cams, the rotary knob is rotated to drive the rotating rod and the threaded rod to rotate, so that the threaded seat moves back and forth relative to the threaded rod, and meanwhile, the rotating seat and the second cam also rotate; and the included angle between the first cam and the second cam can be conveniently adjusted according to use requirements, the application range is wider, the position of the second cam can be conveniently and accurately adjusted through matched arrangement of a pointer and scale marks, and then the included angle between the second cam and the first cam can be conveniently adjusted.

This invention proposes a high-gain, high-linearity amplifier circuit, mainly comprising an input circuit and an output circuit. The input circuit has high gain, converting the received input voltage into current and amplifying it. The input circuit transmits the amplified current to the output circuit. The output circuit generates an output voltage and reduces the input impedance of the input circuit through its included feedback loop. The feedback loop in the output circuit also stabilizes the gain of the entire circuit system and optimizes the system linearity. This invention significantly improves the system gain through the amplifier circuit structure and the back-gate coupled circuit structure, and optimizes the system linearity by setting passive and active feedback loops. This invention achieves both high gain and high linearity.

The invention discloses a test feedback method, and relates to the technical field of test feedback, and the method comprises the steps: determining a corresponding first test task and a first test server after a first voice instruction is received, sending a first test instruction carrying a test script to the first test server, and enabling the first test server to execute the first test task, monitoring the execution state of the first test task in real time, determining a first feedback strategy according to a target exception type when the target exception type is detected, and sending the corresponding feedback content to a specified first feedback device; according to the method, by establishing an automatic feedback mechanism of voice instruction triggering, state monitoring, anomaly classification, strategy matching and active feedback, the technical problem that in the prior art, due to the fact that a test result is manually inquired, anomaly information cannot reach a tester in time, and anomaly processing is delayed is solved; the technical effect of improving the abnormal response speed and the test feedback efficiency is achieved.

The invention discloses a filter network based on external active group delay regulation and control equalization, which comprises a fourth-order microstrip split ring resonator filter network to be subjected to phase calibration, a 3dB bridge, two single-port reflection type split ring resonators and two active feedback amplification loops, the output end of the fourth-order microstrip split-ring resonator filter network is coupled with one port of the 3dB bridge, ports of the two single-port reflection-type split-ring resonators are connected with the other two ports of the 3dB bridge respectively, and the last port of the 3dB bridge serves as a microstrip output port. The two active feedback amplification loops and the two single-port reflection type split ring resonators are in one-to-one correspondence and weak coupling. According to the method, the working characteristics of the single-port reflection type split ring resonator are utilized, the group delay characteristic of the resonator acts on the to-be-calibrated filter network when the resonator resonates, the group delay characteristic of the resonator is superposed with the group delay characteristic of the to-be-calibrated filter network, and then the linear phase filter network with flat group delay is obtained; and meanwhile, an active feedback amplification loop is utilized, a reflected signal acts on the filter circuit through a single-ended split-ring resonator and a 3dB bridge, and the loss of the to-be-calibrated and regulated filter network is compensated, so that the overall transmission performance of the filter network is improved.

The utility model provides a toll booth control device and a toll booth, and relates to the field of equipment control, the toll booth control device realizes independent communication between a main control module and a plurality of sub-control modules, and receives response signals of environment control equipment by using a feedback input end of the main control module; therefore, the state parameters of the environment control equipment in the toll booth are actively returned, calling of the main control module is not needed, the execution efficiency is improved, and the problems that in the prior art, the execution efficiency is low, and troubleshooting is difficult are solved.

The invention provides a laser frequency stabilization device based on active feedback control, and the device comprises a local oscillator laser which is configured to generate and output a laser signal; the optical phase modulator is configured to modulate the microwave signal onto the laser signal to obtain a modulated optical signal; an optical filter configured to perform sag filtering on the modulated optical signal; the photoelectric detector is configured to perform beat frequency on the optical signal subjected to recess filtering to obtain a first radio frequency signal; the radio frequency amplifier is configured to amplify the first radio frequency signal to obtain a second radio frequency signal; the radio frequency power divider is configured to divide the second radio frequency signal into two paths of third radio frequency signals at equal power and input one path of third radio frequency signal into the optical phase modulator; and the feedback control loop is configured to perform frequency mixing on the radio frequency reference signal and the other path of third radio frequency signal input by the radio frequency power divider to generate an error signal, and generate a feedback signal based on the error signal so as to adjust the frequency of the laser signal output by the local oscillator laser.

The present disclosure relates to an adjustable mechanical motion range limitation apparatus being configured for arrangement between a pair of linkage members of a haptic device and comprising a mechanical motion limitation device being moveable, independently from the active feedback device, in relation to the first linkage members, and having, in relation to the first linkage member, a lock position in which the first mechanical motion limitation device limits, by mechanical contact, an available motion range between the first linkage member and the second linkage member.

The invention relates to the technical field of joint rehabilitation, in particular to a joint rehabilitation bicycle and a joint rehabilitation method.The joint rehabilitation bicycle comprises a frame; a handlebar; a stool; two groups of crank assemblies; a touch screen; the power device and the active feedback system are arranged on the frame, the control system comprises a data acquisition system, a cloud platform and a controller, and the touch screen, the power device, the active feedback system, the data acquisition system, the cloud platform, the crank assembly and the seat are in communication connection with the controller. In the training process of a patient, the patient can collect and mark pain data of the patient through the active feedback system and gradually adjust parameters of the power device and setting parameters of the bicycle, the progressive principle can be followed, the operation difficulty of the bicycle and dependence on medical staff are reduced, and the patient can bear pain but achieve a high rehabilitation effect.

An active filter device is provided that solves the problems of the so-called Π-noise filter and can achieve good noise suppression from the low-frequency range to the high-frequency range. An active filter device 1 comprises a common-mode choke 28 inserted into a pair of power supply lines 11, 12, Y-capacitors 61, 62 of the front stage of the common-mode choke 28, an active feedback compensation voltage output circuit 23 comprising a detection unit 29 that detects the common-mode voltage, and an inverting amplification circuit 37 that inverts and amplifies the common-mode voltage detected at the detection unit, and Y-capacitors 21, 22 of the rear stage between the output of the inverting amplification circuit and the common-mode choke, wherein the output voltage of the inverting amplification circuit is applied to the Y-capacitors of the rear stage as a compensation voltage.

The utility model relates to the technical field of vibration isolation equipment, in particular to a table-type active vibration isolation platform which comprises an external PID (Proportion Integration Differentiation) controller, a metal bottom plate and a storage table top covering the upper part of the metal bottom plate, a vibration isolation space is formed between the metal bottom plate and the storage table top, and two groups of vibration isolation components are mounted at four corners of the vibration isolation space respectively. A vibration isolation assembly driving part used for adjusting the vibration isolation assemblies is installed between every two vibration isolation assemblies, a potential monitoring assembly is installed on one side of every two vibration isolation assemblies, and a piezoelectric sensor set is installed on each of the two sides of the middle of the metal bottom plate. The two sides of each piezoelectric sensor set are each provided with a second piezoelectric sensor, the top ends of the second piezoelectric sensors abut against the bottom face of the containing table top, the movement stroke of the vibration isolation spring is changed through position adjustment, so that force feedback of different degrees is obtained, active feedback is achieved, and the vibration isolation effect is improved. Therefore, six-degree-of-freedom and high-precision vibration isolation with foundation feedback is provided.

A control device (14) is provided for controlling an active haptic control element (12) for a motor vehicle (700), wherein the control device (14) is configured to determine (202) whether the control element (12) has been actuated with a short press or a long press. The control device (14) is configured, if an actuation of the control element (12) with a short press has been determined, to determine (204) whether the control element (12) has a long-press function that can be executed after actuation of the control element (12) with a long press, and to control (206) the control element (12) to output active haptic feedback (502) if it has been determined that the control element (12) has a long-press function.

A deflectable catheter assembly including a handle, a catheter system, a method for determine deflection of a deflectable shaft section of the catheter. The catheter includes a handle coupled for deflecting the deflectable shaft section, and one or more pull wires to effect a deflection. The handle includes a housing, a deflection control coupled to the housing and operable to deflect the deflectable shaft section, and a deflection feedback assembly (e.g., a variable resistor) disposed within the housing. The deflection feedback assembly is coupled to the deflection control and configured to convert motion of the deflection control into a signal indicative of a degree of deflection of the deflectable shaft section. The deflection feedback assembly provides an active feedback regarding deflection of the deflectable shaft section to facilitate accurate positioning of the deflectable shaft section within a patient.

The application provides an active feedback-based interference scattering tracking imaging device and method, relates to the optical technology field, and aims to realize real-time tracking imaging of a target object without labeling. In the tracking imaging device, a laser generates laser light, a laser focus modulator controls laser scanning to form a laser scanning area; a displacement table is configured to drive the target object to scan in the laser scanning area, so that the target object generates a scattering signal; the scattering signal interferes with reflected light of the laser to generate an interference scattering signal; a photodetector is configured to convert the interference scattering signal into a detection electric signal; and a controller is configured to obtain a real-time motion position of the target object according to the detection electric signal and a scanning position of the laser.

The present invention provides a method and apparatus for generating RF signals. [Solution] A method and apparatus for generating an RF signal uses digital signal components to generate a composite RF signal having multiple frequency components. An analog filter is used to filter the composite RF signal. The analog filter is an adjustable active feedback circuit having one or more variable resonators and a variable gain block connected to a signal loop defined by a passband. The analog filter is adjusted so that the passband of the analog filter overlaps with one or more desired frequency components of the multiple frequency components of the composite RF signal, and the passband has a relative bandwidth of about 1% or less.

The present invention discloses an active feedback method and system for assisting sleep. The method is applied to an assisting sleep treatment process and includes the following steps: collecting a user's daily free sleep time and basic sleep parameters during a first treatment course; uploading the free sleep time and basic sleep parameters to a cloud server; and receiving the user's bed rest time during a second treatment course from the cloud server based on the free sleep time and basic sleep parameters; providing the user with assisting sleep based on the bed rest time during the second treatment course, and monitoring the user's sleep quality parameters during the second treatment course; and actively adjusting the user's bed rest time during each subsequent treatment course based on the sleep quality parameters during the previous treatment course until the assisting sleep treatment process is completed. The present invention can prevent the therapeutic effect from being affected by excessive changes in sleep time during the assisting sleep process, thereby improving the quality of assisting sleep treatment.

The invention relates to a system and method for measuring and error analyzing air-floating friction coefficient based on active feedback, and belongs to the field of space technology. The invention proposes an active feedback air-floating friction coefficient measurement method, which can accurately measure the startup and steady-state friction coefficients of a spacecraft in an air-suspended state, thereby obtaining the air-floating friction interference term in the dynamic control model, making the dynamic model more accurate and improving the effectiveness of ground verification tests of spacecraft.

In one embodiment, a remote controller for a vehicle includes at least one control element for controlling operation of at least one aspect of the vehicle when the vehicle is in a remote-control mode; an actuator connected the at least one control element for controlling a position of the at least one control element when the vehicle is in an autonomous operations mode; and a processing system for receiving a first control signal from the vehicle indicative of a state of operation of the vehicle. In operation, the processing system generates a second control signal to the actuator to cause the actuator to control a position of the control element such that it corresponds to and indicates the state of operation of the vehicle.