117results about How to "Flexible control method" patented technology

Disclosed a high speed magnetic levitation flywheel stability control system, comprises a displacement sensor, a displacement signal interface circuit, a rotary speed detect circuit, a magnetic bearing controller, and a magnetic bearing power amplifying drive circuit. Wherein, the magnetic bearing controller comprises a axial magnetic bearing controller and a radial magnetic bearing controller, while the radial one is formed by decentralized PID control module and a cross feedback control module whose outputs are connected by the feedback method in cross and parallel. Said invention utilizes the cross feedback control formed by forward whirling motion filter and backward whirling motion filter based on the decentralized PID control; it reaches the phase lead compensation to the forward and backward whirling motion by using the difference of their frequency and whirling motion directions, their variation rule of rotary speed, and the signal of rotary speed of flywheel. So the breakdown speed of flywheel is improved while the stable operation of magnetic levitation flywheel in whole rising and falling process is confirmed too.

The invention discloses a photovoltaic power generation device with a global maximum power output function, which comprises a photovoltaic cell array and a main converter, wherein the photovoltaic cell array comprises a plurality of series photovoltaic cells. The photovoltaic power generation device also comprises a power adjustment array and an auxiliary converter, wherein an input end of the auxiliary converter is connected with a direct current bus of the photovoltaic cell array, and the power adjustment array comprises power adjustment units corresponding to the photovoltaic cells one by one; and the power adjustment units are connected with the corresponding photovoltaic cells in parallel, and input ends of the power adjustment units are connected with an output end of the auxiliary converter. The photovoltaic power generation device has the advantages that the structure is simple, the cost is low, and the reduced output current under partial shade conditions can be automatically compensated to realize the maximum power output of a single photovoltaic cell.

The invention discloses an electrically-aided turbocharging system, and belongs to the technical field of turbocharging. The invention aims at providing an optimized electrically-aided turbocharging system adequately utilizing a turbine body structure, and a control method thereof. One end of the electrically-aided turbocharger disclosed by the invention is installed at an inlet end of an intake channel, and the other end of the electrically-aided turbocharger is installed at an outlet end of an exhaust channel; the electrically-aided turbocharger is composed of an aiding high-speed motor, a compressor, a turbocharger rotary shaft, a turbine and a waste gas bypass valve device; an intercooler is installed on the intake channel; an intake branch pipe is connected to a tail end of the intake channel; an exhaust branch pipe is connected to an inlet end of the exhaust channel; a gasoline engine cylinder is directly connected between the intake branch pipe and the exhaust branch pipe; the exhaust channel behind the exhaust branch pipe is divided into a first passage and a second passage which are connected in parallel; and tail ends of the first passage and the second passage both communicate with an outlet pipeline. According to the electrically-aided turbocharging system disclosed by the invention, the high-speed motor is combined with the turbocharger with the waste gas bypass valve, thus the influence of waste gas turbocharging for the performance of a gasoline engine is furthest utilized.

The invention discloses a fully digital electric variable pitch driver. Peripheral devices of the driver comprise a shaft tank, a variable pitch actuating motor, and an incremental coder on the output shaft of the motor; circuits of the driver comprise two parts, namely a drive circuit and a control circuit; the drive circuit comprises a rectifying circuit, an inverter circuit, a switch power supply circuit, a current and voltage detecting circuit and a relay drive circuit; and the control circuit comprises a DSP module, a CPLD module, a PWM signal drive circuit, a signal conditioning circuit, a switching value acquiring circuit, a coder signal conditioning and acquiring circuit and a communication circuit. The fully digital electric variable pitch driver directly receives a command which is sent by a fan master control and performs three-closed-loop control based on vector change and SVPWM by detecting the current signal of a motor stator and the signal of the coder so as to realize the variable pitch control of the actuating motor; and the control accuracy, the response speed and the reliability of a variable pitch system can be ensured, and then the generating efficiency and the power quality of a whole wind generating set are increased.

The invention discloses a ship sailing aiding and formation commanding method. When a destination and formation type is determined, a flagship plans ships to arriving set positions at set time; each ship treat a water dynamic system as a black box to invert resultant force stressed by the ship along the set sailing trajectory, sailing trajectory of each ship at the next time period is predicted according to current real-time sailing parameters and historical sailing state parameters of the ship, the predicted sailing trajectories, the planned sailing curves and real-time sailing curves are drawn together on a real-time sailing interface map, and the ships are controlled to sail along the predicted sailing trajectories; and real-time positions and real-time sailing parameters of the ships are monitored and used as the historical sailing parameters to feed back to be used for predicting sailing trajectories of the ships, and the real-time saving parameters are drawn into operation vectors tangent to the predicted sailing curves. The ship sailing aiding and formation commanding method uses a distributed control system, is flexible to control, convenient to operate, and has high fault tolerance and extensibility.

The invention discloses a constant current control system for a continuous current mode (CCM) and a discontinuous conduct mode (DCM) of a primary-side feedback flyback power supply. The control system comprises a current detection module, an output feedback module, a current computation module, an error computation module, a PID module, a PWM module and a drive module; the control system is connected with a controlled switch power supply to form a closed loop; the current detection module and the output feedback module collect basic parameters for achieving a constant current algorithm; the current computation module computes an average current of a primary-side inductor at a switch-on stage of the switch, computes an average current of secondary output currents according to a turns ratio relation between input and output, and works out an output current by averaging integrals of the current on time, the output value executes a compensation algorithm in the digital PID module, a compensation value is transmitted to a PWM module, an appropriate duty ratio is output by the drive module, and thus high precision constant current of the digital power supply is controlled.

The invention discloses an air-cooled refrigerator comprising a temperature-and-humidity-adjustable area and a control method of the air-cooled refrigerator. The temperature-and-humidity-adjustable area independent of a refrigerating chamber is arranged inside the refrigerating chamber and is covered with a heat-insulating material layer, a temperature and humidity sensor is arranged inside the temperature-and-humidity-adjustable area and is electrically connected with a main control panel, an area air supply duct is arranged at the back of the temperature-and-humidity-adjustable area, communicates the temperature-and-humidity-adjustable area with an evaporator bin and is independent of a refrigerating air supply duct, and an area air supply door is arranged inside the area air supply duct. The air-cooled refrigerator has the advantages as follows: the independent temperature-and-humidity-adjustable area is arranged inside the refrigerating chamber and controls the temperature and humidity of the evaporator bin by the aid of the independent duct connected with the evaporator bin, so that the temperature and humidity inside the temperature-and-humidity-adjustable area are adjustable, and an area suitable for storage is provided for objects requiring the low-temperature and low-humidity storage environment.

The invention discloses an air conditioner control method. The method comprises the steps that an air conditioner receives a motion state which is determined according to the current user motion state parameters and sent by a wearable device; the air conditioner determines the target control parameters corresponding to the received motion state according to the preset corresponding relation of the motion state and the control parameters; the air conditioner adjusts the current control parameters into the target control parameters. The invention further discloses an air conditioner control device. The air conditioner determines the corresponding target control parameters according to the received motion state and adjusts the current control parameters into the target control parameters, and therefore the air conditioner can automatically adjust the control parameters according to the current user state, accordingly, the control mode of the air conditioner is more flexible and more intelligent, and the comfort level during using of the air conditioner is improved.

The invention provides an electric-assistance variable nozzle turbocharging system, and belongs to the technical field of turbochargers. The electric-assistance variable nozzle turbocharging system and the control method thereof aim at enabling a motor and a turbine variable nozzle ring to be coordinated through the influences of the motor and the turbine variable nozzle ring on performance of an engine. A diesel engine cylinder is directly connected between a gas inlet branch pipe and an exhaust branch pipe of the system. A gas inlet pipe is connected to the gas inlet branch pipe. An exhaust pipe is connected to the exhaust branch pipe. An intercooler is installed on the gas inlet pipe. An electric-assistance variable nozzle turbocharger is installed at an inlet of the gas inlet pipe and an outlet of the exhaust pipe. According to the electric-assistance variable nozzle turbocharging system and the control method, the high-speed motor is controlled on the basis of the air-fuel ratio of a diesel engine and the state of a storage battery, the gas inflow amount of the cylinder can be effectively and rapidly regulated so as to be matched with the changes of the oil spray amount, coordinated synchronization of oil and gas is achieved, it is ensured that the diesel engine keeps an appropriate air-fuel ratio value under various working conditions, and meanwhile it is ensured that the battery works in a high-efficiency area.

The invention relates to an intelligent heating agitator and the controlling method, which is applied in heating and agitating experiment in chemical field, especially dangerous chemical experiment and reacting in sealed container. The method comprises: (1) agitating with magnetic drive, isolation of driver and agitator is favor for sealing reacting container and preventing reactant from splashing; (2) putting intelligent controller far away from reacting device, remote controlling to avoid contact with toxic substance; (3) controlling coil and heating plate with intelligent H bridge and power device, which is characterized by smaller volumn and higher stability; (4) integrating agitator with heating device, and the agitating speed, mode, heating temperature are controllable; (5) rotating magnetic field by changing current direction in coil, which is characterized by simpler mechanical structure and flexible control.

A large six-component measurement and angle-variable support device comprises a base, a six-component measurement and in-situ calibration device, an angle-variable device and locking devices. The six-component measurement and in-situ calibration device is arranged on the base. The angle-variable device is arranged on the six-component measurement and in-situ calibration device. The locking devices are located on the two sides of the angle-variable device. Before test, an engine is arranged on the angle-variable device, and initial calibration is conducted through the six-component and in-situ calibration device; after calibration is completed, the locking devices and an upper platform of the angle-variable device are locked and fixed, and impact loads borne by the engine when a high altitude flow field is established in the initial stage of the test are transmitted outward so that the six-component measurement and in-situ calibration device can be protected against damage; after the flow field is stabilized, rapid unlocking is achieved between the locking devices and the angle-variable device, the angle-variable device is rotated by different angles according to the requirements of the test, and force and torque of the engine at different angles are tested through the six-component measurement and in-situ calibration device.

The invention discloses a multi-mode operation control method and a multi-mode operation control system for a flow battery. The control method comprises the following steps: determining the operation mode of a flow battery system; acquiring the value of the number of battery system sub-units which should be in an operation state; acquiring the stress optical coefficient (SOC) values of various battery system sub-units, and arranging the sequenced relationship among the battery system sub-units according to the size order of the SOC values, and controlling a corresponding number of front battery system sub-units to operate according to the arrangement result; determining charging power or discharging power of the battery system sub-units in operation; and controlling the operation states of the battery system sub-units by combining the determined operation mode of the flow battery system according to the charging power or the discharging power of the battery system sub-units. According to the multi-mode operation control method and system, different operation modes can be carried out according to different power scheduling requirements; and on the basis that other secondary batteries do not need to be matched, the requirements of different power outputs and response capabilities are realized through the flow battery system.

The invention discloses a regulating and controlling method and logic of self-adaption commutation integration of a high frequency chain matrix inverter, belonging to the regulating and controlling technology of power electronic power convertor. The invention is composed of a PWM information generating link (1), a self-adaption safe commutation integration logic processing circuit (2) and a controlled object high frequency chain matrix inverter (3), wherein PWM information which is produced by the PWM information generating link for classic inverter sinusoidal output is processed with the self-adaption safe commutation integration method and logic to control a high frequency chain circuit into a common voltage inverter or current inverter, thus obtaining a driving control signal used for the high frequency chain matrix inverter, and realizing energy double flow and four-quadrant operation. The invention has the advantages that the system has explicit working state and low regulation complexity, and the principle is easy to realize; the safe commutation of the system can be realized without commutation current detection and assistant circuit self-adaption used by traditional regulation and control. Thus the invention has wide application prospect in the fields of new energy power generation, motor speed regulation and the like.

The invention discloses a continuous belt type sludge dryer and a method for treating sludge in batches. The continuous belt type sludge dryer comprises a feeding mechanism lifting the sludge from thebottom to the top, a feeding speed control mechanism storing sludge temporarily and controlling the sludge discharging amount and with the bottom provided with a pneumatic brake valve, a sludge cutting mechanism, a material drying system drying the sludge, a discharging mechanism and a controller processing unit. The feeding speed control mechanism is located below a discharging port of the feeding mechanism, the feeding speed control mechanism, the sludge cutting mechanism and the material drying system are sequentially arranged from top to bottom, and the discharging mechanism is close to the bottom of the material drying system; and the feeding mechanism, the feeding speed control mechanism, the sludge cutting mechanism, the material drying system, the discharging mechanism are both electrically connected with the controller processing unit. The continuous belt type sludge dryer is applicable to sludge dryers for treating small-batch sludge, semi-automated operation is achieved, the floor space is small, the equipment investment is low, the manpower cost is low.

The invention relates to a mixer truck and pump truck coordinative operation system, a mixer truck and pump truck coordinative operation method, a mixer truck and a pump truck. The coordinative operation system comprises a target instruction input unit, a discharge control unit and a pumping control unit; the target instruction input unit is used for inputting a target instruction corresponding to discharge needed by on-site operation; the discharge control unit is used for controlling the mixer truck according to the target instruction, so that the discharge or discharge speed of the mixer truck can reach the discharge corresponding to the target instruction; and the pumping control unit is used for controlling the pump truck according to the target instruction, so that the pump output or the pumping speed of the pump truck can reach the discharge corresponding to the target instruction. The invention utilizes the target instruction input unit to input the discharge corresponding to the target instruction, the discharge control unit and the pumping control unit uniforms the respectively controlled discharge or discharge speed and pump output or pumping speed, i.e. uniforming the discharge speed and the pumping speed or uniforming the discharge and the pump output, consequently, the coordinative operation of concrete discharge and pumping is realized, and overflowing or emptying caused by the incoordination of discharge and pumping can be prevented.

The present invention relates to the field of communication technology, and in particular to a control method for an intelligent terminal, an intelligent terminal and a wearable device, so as to solve the problem that the control method for an intelligent terminal is not flexible enough in the prior art. In the embodiment of the present invention, the smart terminal receives the user state information sent by the wearable device, wherein the user state information is the user state information generated by the wearable device according to the user's biometric data after detecting that the user's biometric data has changed; When the condition is set, the smart terminal executes the control operation corresponding to the state information according to the correspondence between the user state information and the control operation. Since the wearable device in the embodiment of the present invention can monitor the user status and send the user status information to the smart terminal, the smart terminal performs corresponding control operations according to the user status information sent by the wearable device, so that the smart terminal can be reasonably controlled according to the user status, realizing Flexible control of smart terminals.

The invention discloses an electroencephalogram controlled video input auditory display guide device and method. The device comprises a video collection module, an electroencephalogram collection module, a processor and an audio playback module, wherein the video collection module is connected with the processor, the electroencephalogram module is connected with the processor and is used for collecting electroencephalogram signals, the audio playback module is connected with the processor, and the processor is connected with the video collection module, the electroencephalogram collection module and the audio playback module. A region of interest in the guide device is controlled through the electroencephalogram signals, the whole sensing image and details of interest in the sensing imageare switch conveniently, a region of interest in the current video is set through electroencephalogram, a flexible auditory display resolution and control method is provided for users, the user can sense global information or local detail information of the image through setting of the region of interest, so that the defect of low auditory display resolution is overcome effectively. The device andmethod can be widely used in occasions requiring guide.

The present invention discloses a navigation device of a radio frequency identification automatic guidance vehicle. The device comprises an automatic guidance vehicle frame, the bottom portion of the automatic guidance vehicle frame is provided with a radio frequency identification reader, each wheel of the automatic guidance vehicle frame is connected with a transmission device, the transmission device is connected with a motor, the motor is connected with a driving unit and a power supply, the driving unit is connected with a control unit, the control unit is connected with a power supply unit, the control unit is connected with the radio frequency identification reader through signals, the radio frequency identification reader is connected with RFID tags, the RFID tags are connected with a control system, and the RFID tags are arranged on a preset travel path. The present invention further discloses a control method of the navigation device. According to the navigation device of the radio frequency identification automatic guidance vehicle, the path location is changed to discrete points from a locus mode so as to reduce the maintenance cost and perform flexible and changeable regulation.

The invention discloses a single FPGA chip-based driving system for multiple rear-earth permanent-magnet synchronous motors. The system adopts the same control core FPGA chip, integrates a main control unit and a plurality of motor driving control units, realizes the associated driving of the plurality of rear-earth permanent-magnet synchronous motors and also integrates a plurality of control models, wherein each unit realizes data sharing and the seamless connection of the shared data in the chip; and each controlled rear-earth permanent-magnet synchronous motor can have a plurality of operational modes. The whole system has the advantages of simple structure, strong real-time, high response speed, good anti-interference capacity, convenient update and the like. The system is widely applied to the industries of electromobile, steamer, industrial automation, national defense and the like.

The invention relates to the field of dyeing machines and discloses a novel dyeing control system and a control method thereof. The novel dyeing control system comprises a microprocessor high in compatibility and allowing internal software to be altered and a dyeing machine, the microprocessor is electrically connected with the dyeing machine, and the dyeing machine comprises a PLC (programmable logic controller) and a sensor which are electrically connected. The novel dyeing control system is unified in standard, high in universality, capable of being widely applied in the dyeing machines of textile industry and convenient to use and maintain. The control method includes the steps of establishing a process, calling the process and executing the process, and has the advantages of simplicity, flexibility and quickness in control.

The invention discloses a primary side feedback constant current control system, and the system comprises an output feedback module, a current detection module, a driving module, a current calculationmodule, an error calculation module, a PID module and a PWM module, wherein the control system is connected with a controlled switching power supply to form a closed loop; the current detection module and the output feedback module are mainly used for acquiring some basic parameters for realizing a constant-current algorithm, and the current calculation module is used for calculating the currentof a primary side inductor and the excitation inductance current of a transformer in a switch conduction stage. The magnitude of the output current can be obtained by integrating and averaging the output diode current in time, a compensation algorithm is executed on the output value in the digital PID module, the compensation value is output to the PWM control module, and a proper duty ratio is output through the driving module, so the high-precision constant current of the digital power supply is effectively controlled.

The invention provides a fermentation control method which comprises the following steps: placing saccharified wheat juice into a corresponding yeast growing tank; after yeast proliferation, delivering raw material solution into a can body for further fermentation; when the fermentation temperature rises, guiding cooling alcoholic solution into a cooling jacket; when the fermentation degree of the appearance is 60%, closing a jacket cooling agent valve and raising the temperature naturally for bi-diethylstilbestrol reduction; after temperature rise, starting to seal a can for boosting and then fermenting; when the fermentation degree of the appearance is 65%, raising the temperature according to the preset rate; eliminating yeast for the first time and maintaining a certain pressure and temperature; emptying the yeast and filtering, so as to complete beer fermentation, wherein in the fermentation process, a temperature control module and a pressure control module are used for controlling temperature and pressure. The method provided by the invention is automatically controlled by a computer, the control method is flexible, the quality of beer is improved, the fermentation period is shortened, the system is stable and reliable, and the maintenance management is convenient.

The invention discloses a wireless portable ship cabin multi-gas detection system, which includes a detection terminal, which is arranged on a collection node in each cabin, and each of the cabins is provided with several collection nodes, each of the collection nodes One detection terminal is arranged on the cabin, and the detection terminals in each of the cabins are interactively connected. Each detection terminal is provided with a first alarm device and a plurality of gas sensors. Each detection terminal is equipped with A positioning module is provided; a main end device is arranged in the remote control room, the input end of the main end device communicates with the output ends of the detection terminals of each of the cabins, and the main end device is provided with a second An alarm device and a position display device; a management terminal, which is connected to the master device; and a mobile terminal, which is connected to the detection terminal by communication. The invention solves the technical problem that the gas detection alarm information lags behind in the cabin of the ship.

The invention discloses a drilling tool technology procedure parameter adjustment test device controller and a control method. The drilling process of a drilling tool, temperature of a drilling environment and the vacuum degree of the drilling environment can be controlled by the controller. Besides, communication with a control center is realized by respective communication interfaces, and the control center can control independent operation of each subsystem. The control method of the controller comprises the steps that firstly a feed motor performs low-speed feeding, and whether the drilling tool is contacted with a drilling object is judged according to force feedback; then the drilling tool is contacted with the drilling object, the feed motor maintains low-speed feeding, and a rotation motor starts low-speed rotation; the drilling speed level is adjusted anytime in the drilling process, and the speed of the feed motor gradually transforms to low speed from high speed according to the force feedback speed level; and an impact motor is started when encountering severe working conditions, and rotation-impact drilling is applied. Advantages of the controller and the control method are that different combinations of tests can be performed through control so that test device debugging is greatly facilitated and the great drilling effect of the drilling tool can be guaranteed.