64results about How to "Accurate control signal" patented technology

In a pressure control system having a solenoid-operated fluid valve that has an output hydraulic pressure which varies in accordance with a solenoid input signal, a dynamic learning block is configured to adjust the initial, default values for control points stored in a pressure-current (P-I) data table based on observed (measured) operating points that reflect the solenoid's actual transfer characteristic. A feed forward control block is configured to generate the solenoid input signal having a level based on the adjusted control points in the data table, which improves the accuracy of the solenoid input signal. An adjustment method uses a plurality of circular buffers each configured to store observed operating points falling within a respective range, and provides a mechanism to allow adjustment of the control points based on only partial data.

The invention provides a touch screen controller and a control method of a driving device. The touch screen controller is used for sending a control signal to the driving device. The touch screen controller comprises a touch screen and a processor electrically connected with the touch screen. The processor is used for receiving a touch movement trail on a touch screen, calculating controlled movement control information of the driving device according to the touch movement trail, outputting data of the movement control information to the touch screen, and outputting control signals of the movement control information to the driving device; and the touch screen is used for receiving the data of the movement control information output by the processor and displaying the data in real time. According to the method, the touch screen controller is used for controlling the movement of the driving device. By using the touch screen controller, a user can conveniently and accurately input a control instruction.

The present invention provides a method and system for processing an uplink control signaling feedback. The method comprises: a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel (PUCCH) and / or a physical uplink shared channel (PUSCH); and the user equipment sending the uplink control signaling according to the feedback mode. By way of the present invention, it is ensured that the base station can correctly demodulate the uplink control signaling.

The invention provides a touch screen controller and a control method of a travel device. The touch screen controller is used for transmitting control signals to the travel device; the touch screen controller comprises a touch screen and a processor electrically connected with the touch screen, wherein the processor is used for receiving touch movement tracks on the touch screen, calculating movement control information of the travel device controlled in a two-dimensional direction, outputting the movement control information to the touch screen, and outputting the control signals of the movement control information to the travel device, and the touch screen is used for receiving the data of the movement control information outputted by the processor and displaying the data of the movement control information in real time. The method is a method using the touch screen controller to control the travel device. The touch screen controller of the invention can facilitate accurate input of control commands for a user.

In a pressure control system having a solenoid-operated fluid valve that has an output hydraulic pressure which varies in accordance with a solenoid input signal, a dynamic learning block is configured to adjust the initial, default values for control points stored in a pressure-current (P-I) data table based on observed (measured) operating points that reflect the solenoid's actual transfer characteristic. A feed forward control block is configured to generate the solenoid input signal having a level based on the adjusted control points in the data table, which improves the accuracy of the solenoid input signal. An adjustment method uses a plurality of circular buffers each configured to store observed operating points falling within a respective range, and provides a mechanism to allow adjustment of the control points based on only partial data.

A method is provided for controlling the operation of a wind turbine includes (a) receiving an active power reference signal; (b) determining, based on the active power reference signal and an active power feedback signal, a first voltage control signal and a power controller frequency signal; (c) receiving a power reference signal; (d) determining, based on the power reference signal and the power feedback signal, a power offset frequency signal; (e) determining, based on the power controller frequency signal, a second voltage control signal; (f) determining, based on the power offset frequency signal, an angle signal indicative for an actual angle of a rotating dq reference frame; and (g) controlling the operation of a power converter based on the first voltage control signal, the second voltage control signal, and the angle signal.

A hand-held pointing device for controlling a movement of a software cursor comprises an acceleration detector and an image capturing unit. The acceleration detector determines an inclination parameter, wherein the movement of the software cursor in a vertical direction is controllable based on the inclination parameter. Further, the image capturing unit records images within the visible spectral range, wherein the movement of the software cursor in a horizontal direction is controllable based on the recorded images.

The invention discloses a self-sensing magnetorheological damper adopting a spiral damping channel. The self-sensing magnetorheological damper comprises a working cylinder and a piston, wherein the piston is arranged inside the working cylinder and divides the working cylinder into a cavity I and a cavity II; the cavity I and the cavity II are filled with a magnetorheological material; an excitation coil and the spiral damping channel, which is used for enabling the magnetorheological material to flow in the cavity I and the cavity II, are arranged on the piston; the magnetic field of the excitation coil penetrates the spiral damping channel. According to the magnetorheological damper provided by the invention, the damping channel is a spiral damping channel, so that the effective length of the damping channel is lengthened, the magnetic field utilization ratio is increased, and the power consumption of the magnetorheological damper during adjustment is reduced.

The invention discloses a structural vibration control method based on reinforcement learning, a medium and equipment. The method comprises the following steps: establishing a kinetic equation and a reward function of a controlled system; establishing and initializing a strategy network, a target strategy network, a value network and a target value network; establishing a playback pool; data interaction is achieved. Meanwhile, the control signal, the feedback signal and the reward signal are stored in a playback pool, the control signal, the feedback signal and the reward signal are provided for a reinforcement learning algorithm in a random sampling mode to update parameters of a strategy network and a value network, and a soft update mechanism is adopted to update parameters of a target strategy network and a target value network; obtaining a final strategy neural network as a controller; and deploying a controller, taking the feedback signal acquired by the sensor as the input of the neural network, and outputting a control signal after the forward calculation of the neural network to complete the control operation of the structural vibration. The invention provides a more intelligent control method for vibration control of a complex structure, and has excellent control performance and engineering practicability.

A method of and apparatus for controlling the temperature of an inductively coupled or microwave induced plasma for optical emission spectrometry or mass spectrometry in which the intensities of two spectral lines of radiation emitted by the plasma are measured, and the power provided to sustain the plasma is adjusted so that the ratio of the intensities remains substantially constant.

The present invention discloses a real-time responsive motor control system comprising a central MCU (Microcontroller Unit) core logic and at least one PWM (Pulse Width Modulation) MCU core logic. The central MCU core logic takes care of all interrupt events. The PWM (Pulse Width Modulation) MCU core logic is dedicated to the transformation of PWM signals so that the PWM signals output to a motor device are highly accurate. Further, the central MCU core logic may directly control the PWM MCU core logics so that the switching timing of the PWM signals is even more accurate. The present invention provides a modularized hardware architecture with flexible software control. The system design is simple and the associated cost is reduced.

The invention discloses a time-controlled single shaft tracking apparatus comprising a photovoltaic panel installation rack, a rotating shaft, a power-driven device, and a time-controlled device. The rotating shaft makes rotation and simultaneously drives the photovoltaic panel installation rack to make synchronous rotation as well as correspondingly adjusts a direction angle of a solar photovoltaic panel. The power-driven device drives the rotating shaft to make rotation once every 20 minutes, wherein an angle of the rotation of the rotating shaft that is driven every time is 5 degrees. And the time-controlled device controls the power-driven device according to a control mode that is arranged in advance and realizes that an included angle between an incident direction of the sunlight and a normal direction of the solar photovoltaic panel is always controlled to be less than 5 degrees in a day. Besides, the time-controlled device comprises a sunlight incident port, a photoelectric detector, a photoelectric detector window, a sunlight reflector and a controller. According to the invention, the apparatus has advantages of simple structure, reasonable design, simple operation, reliable performance and high operation precision. And moreover, defects that exist in a current photoinduction tracking system and include high cost, large power consumption, and small generated energy and the like as well as defects that exist at a fixed mounting type solar photovoltaic panel and include low generation efficiency and the like can be overcome.

The invention relates to a rolling mill flying scissor blade cooling method and a cooling device thereof. In the cooling method, a heat-sensitive sensor is arranged to detect the movement and the position of wire stocks in the process in which the wire stocks are transported to a flying scissor blade, and a detection signal is transmitted to a control circuit. The method comprises the following steps: sending out a hot metal existence / non-existence detection signal and controlling the flying scissor blade to halt or stand by; or spraying water to cool the flying scissor blade and automatically delaying the close of sprayed cooling water. According to the cooling method and the device thereof disclosed by the invention, on the premise of saving water and preventing water from splashing andinfiltering into a bearing oil seal, a more effective water cooling mode is adopted to cool the flying scissor blade, so the temperatures of the flying scissor blade as well as a cutter shaft and a crankshaft thereof can be greatly reduced, the shearing quality of flying scissors is improved, the overall working life of the blade and the flying scissors is prolonged, and the failure rate of the whole device is reduced.

A system and method for generating sample control signals for a sample and hold circuit used to control access to optical media is provided. The sample control signals are generated with sufficient duration (width) to adequately sample a reflected laser power signal. The sample control signals are defined relative to a laser power command signal generated in response to an internal data stream, rather than directly in response to the internal data stream, thereby allowing for more precise control of the sample control signals. As a result, substantial portions of each pulse of the reflected laser power signal can be sampled, without sampling transition noise that exists when the reflected laser power signal changes states. Generating the sample control signals from a laser power command signal, rather than the input data signal, more accurately time shifts the sampling command to the reflected laser power.

The invention discloses a control method of an unmanned aerial vehicle multilayer recursive convergence neural network controller. The method comprises the following steps: constructing an unmanned aerial vehicle model fusing a motor hysteresis effect; based on the unmanned aerial vehicle model, designing a height controller, a yaw angle controller, a roll angle controller, a pitch angle controller, an X controller and a Y controller of an unmanned aerial vehicle by adopting a recursive convergence neural dynamics method; inputting unmanned aerial vehicle state information collected by a control target and an unmanned aerial vehicle sensor to the controller of each unmanned aerial vehicle, and outputting a control component by the controller of each unmanned aerial vehicle; and after the output control component of the controller is converted, transmitting the output control component to an unmanned aerial vehicle motor speed regulator, and controlling the unmanned aerial vehicle to fly by the unmanned aerial vehicle motor speed regulator. Based on the recursive convergence neural dynamics method, the problem correct solution can be quickly and accurately approached in real time, and the obtained controller can well control the unmanned aerial vehicle to track the time-varying trajectory.

The present invention discloses a real-time responsive motor control system comprising a central MCU (Microcontroller Unit) core logic and at least one PWM (Pulse Width Modulation) MCU core logic. The central MCU core logic takes care of all interrupt events. The PWM (Pulse Width Modulation) MCU core logic is dedicated to the transformation of PWM signals so that the PWM signals output to a motor device are highly accurate. Further, the central MCU core logic may directly control the PWM MCU core logics so that the switching timing of the PWM signals is even more accurate. The present invention provides a modularized hardware architecture with flexible software control. The system design is simple and the associated cost is reduced.

The invention provides a tracking system and method for a sun tracker. The method comprises the following steps: firstly, performing the individual optimization according to sample data through a GA sample data preprocessing module to obtain the individual with the greatest adaptability and sending the individual to a BP network adjustment module as the optimal initial value for training; based on the optimal initial value and through the reverse transmission of the BP network adjustment module, adjusting the weights and thresholds of the hidden layer and the output layer to enable the obtained error evaluation function to be smaller than the set error threshold to obtain adjusted P, I, D parameters; and the BP network adjustment module sending the adjusted P, I, D parameters to a PID controller module, the PID controller module performing control according to two degrees of freedom, so as to enable the track performance and the anti-jamming performance to achieve the best respectively. The method combines the genetic algorithm with the neural network to make full use of the advantages of the two, so that the control system has the learning function, the robustness and the generalization ability of the neural network, and the global search optimization ability of the genetic algorithm.

The control procedure of control switch includes steps: user pushes switch button, and the emitter transmits command signal for switch; the receiver receives the command signal for switch, and transfers the signal to the process module; the process module processes the command signal for switch, and controls the switch of electromotor; through mechanical drive module, the electromotor drives movement of the control part; further, movement of the control part controls on / off between a pair of connecting terminals so as to control opening or closing door. In the disclosed technical scheme, the process module does not control on / off between a pair of connecting terminals directly, instead, controls on / off of electromotor. Thus, the receiver, the process module is separated off connecting terminals of circuit so that signals of voltage in circuit, or high / low temperature will not affect or damage the receiver or process module. The invention guarantees accuracy of control signal.

The invention discloses a micro-nano movement system posture control device adopting an optical balancing method and belongs to the technical field of precision measurement of geometric quantities. The device mainly comprises a control system module, an optical measurement module, a photoelectric demodulation module and an execution mechanism module. Accurate information of a position is determined with light energy and local interference modulated frequency information, wherein the position information is used for posture control in the movement of a micro-nano movement system. Light energy in a measurement signal is used for guaranteeing determination of an effective area of the measured signal, the interference modulated frequency information is used for judging the position of a balance point in the measurement area, and finally, operation and driving of the execution mechanism are performed in the control system module to guarantee that the movement posture of the micro-nano movement system is stable and controllable. The problems that posture measurement sensitivity of common movement systems is low, measurement drifting exists and the like can be solved, the device is relatively simple in structure, integration and portable performance of the movement system are favorably improved, the device is high in measurement efficiency and good in resolving power, and the instantaneity and the accuracy of posture control are favorably improved.

The present invention provides a power supply device, comprising: a reference signal generator, used to provide a reference signal; a proportional-integral fuzzy controller, coupled to the reference signal generator; and a DC-DC converter, coupled to the The proportional-integral fuzzy controller is used to generate a DC voltage signal; wherein, the proportional-integral fuzzy controller generates a first control signal to control the DC-DC converter according to the reference signal and the DC voltage signal. For the power supply device proposed by the present invention, since the control signals generated by the fuzzy controller are all digital signals, it can generate more precise control signals, thereby reducing overshoot and undershoot phenomena, and will not cause adverse effects on subsequent circuits .

The invention discloses a high-voltage integrated circuit, and belongs to the technical field of semiconductors, the rising edge output end of a first monopulse GEN is electrically connected with the input end of a first OR gate, and the falling edge output end of the first monopulse GEN is electrically connected with the input end of a second OR gate; a reset pin of the shift register is electrically connected with a reset signal output end of the MCU processor, and a clock pin of the shift register is electrically connected with a PWM (Pulse Width Modulation) output end of the MCU processor; the output end of the shift register is electrically connected with the input end of the second single pulse GEN, the rising edge output end of the second single pulse GEN is electrically connected with the input end of the first OR gate, and the falling edge output end of the second single pulse GEN is electrically connected with the input end of the second OR gate. The invention further discloses a control method of the high-voltage integrated circuit. According to the high-voltage integrated circuit and the control method thereof, the problem that the control signal generated by the RS trigger is inaccurate is solved.

A method is provided for controlling the operation of a wind turbine includes (a) receiving an active power reference signal; (b) determining, based on the active power reference signal and an active power feedback signal, a first voltage control signal and a power controller frequency signal; (c) receiving a power reference signal; (d) determining, based on the power reference signal and the power feedback signal, a power offset frequency signal; (e) determining, based on the power controller frequency signal, a second voltage control signal; (f) determining, based on the power offset frequency signal, an angle signal indicative for an actual angle of a rotating dq reference frame; and (g) controlling the operation of a power converter based on the first voltage control signal, the second voltage control signal, and the angle signal.

The invention provides an office intelligent control system. The office intelligent control system comprises a monitoring system and a control center which are electrically connected, wherein a photographing device, an environmental detection unit and a voice recognition module are connected onto the monitoring system; an access control system, a communication module and an execution unit are connected onto the control center; the access control system comprises an identification module, a counting sensor and an electromagnetic lock which are electrically connected with the control center respectively; the communication module is connected with a mobile client; the mobile client is used for remote system monitoring; the execution unit comprises a water dispenser, a computer, an air conditioning device, a light adjusting device, a window control device and an alarm device which are arranged in an office; the computer is connected with a projector; the window control device is connectedwith a curtain; the monitoring system acquires a signal from the environmental detection unit and sends the signal to the control center; the control center sends a control signal to the execution unit. The office intelligent control system has the advantages of simple structure, high efficiency, scientization and automation.

The invention discloses an interference signal filtering device, an automobile and an interference signal filtering method thereof. The device comprises a first filtering unit and a second filtering unit, wherein the first filtering unit is configured to filter out an electromagnetic interference signal in an input control signal to obtain a first control signal; the control signal is a control signal for an interference signal is to be filtered; the control signal comprises a wake-up signal of a vehicle control unit of the automobile; the second filtering unit is configured to filter out a strong current interference signal in the first control signal to obtain a second control signal, and the second control signal is used as an effective control signal after the interference signal is filtered from the control signal. According to the scheme, the electromagnetic interference in the control signal of the electric control unit of the automobile is filtered out, so that the control reliability of the electric control unit is improved.

The invention discloses a roller shutter door with an anti-misoperation intelligent controller. The roller shutter door comprises a door body, a motor, a transmission device, a motor controller, a ground hook lock, a signal emitter, a power-off controller, a remote controller, an obstacle detector and an anti-misoperation controller, wherein the anti-misoperation controller is used for filtering an obstacle signal, monitoring motor current and monitoring a power-off signal, and is in signal connection with the obstacle detector, the power-off controller and the motor controller. By filtering and judging the obtained signal, a correct control signal and an effective obstacle signal are sent out. Compared with the prior art, the roller shutter door provided by the invention can effectively avoid the condition that the roller shutter door cannot work normally due to misoperation and faults of the obstacle detector.

The invention provides a switching power supply and relates to the field of power supplies. The switching power supply comprises an input module, a transformation module, an output module and a control module. The input module comprises an input filtering circuit, a surging suppression circuit and an input rectifying circuit; the transformation module comprises a switching circuit and a transformer; the output module comprises an output rectifying circuit and an output filtering circuit; the control module comprises a power correcting circuit, a protection circuit, a sampling circuit, a reference power supply, a comparison and amplification circuit, a V / F circuit, an oscillator and a base electrode driving circuit.