1054 results about "Pulse control" patented technology

A dual-motor mixed-hybrid powertrain system, by performing pulse modulation control, i.e., series-hybrid intelligent start-stop control or parallel-hybrid intelligent power switching control, on the instantaneous power time-varying functions of an engine and a battery pack, can convert the surface working condition of an analog electric control engine into a simpler line working condition of a digital pulse control (DPC) engine, either a pre-determined high-state line working condition in the high-efficiency combustion area or a pre-determined non-combustion low-state line working condition with zero fuel consumption and zero pollutant emissions multiplexed in time. The traditional fixed one-to-one bidirectional mapping between an engine working condition and a vehicle working condition is converted into a dynamically adjustable many-to-many bidirectional mapping to achieve the full coverage of any overall vehicle working condition, achieving decoupling between a DPC engine working condition and the overall vehicle working condition and decoupling between software and hardware of a hybrid powertrain.

The invention relates to a lithium battery electrochemical impedance spectroscopy online measurement and estimation method and system based on a charging pile, and belongs to a battery detection technology. The system comprises a measurement module, an estimation module and a result output module. The measurement module comprises a signal generation sub-module, a waveform amplification sub-module and a response processing sub-module; a pulse control signal is inserted into the signal generation sub-module during charging, and is amplified into a measurement excitation signal by the waveform amplification sub-module to be applied to a battery; the response processing sub-module samples the response signal and calculates an impedance spectrum. The estimation module comprises a neural network sub-module and an impedance spectrum estimation sub-module; the neural network sub-module is used for training a physical information neural network by using impedance response to output Randles circuit model parameters to the estimation sub-module, and the change of the electrochemical impedance spectrum is predicted. And the result output module displays and stores the measured and estimated values of the impedance spectrum. According to the invention, the impedance values of the to-be-measured battery pack under multiple frequencies can be measured and estimated on line, and the estimation of the impedance spectrum is physically interpretable.

The invention relates to the technical field of semiconductor laser power supplies, in particular to a semiconductor laser power supply control circuit based on linear constant current and a method thereof. According to the technical scheme, the circuit comprises a voltage follower module, a linear constant-current driving module, a power switch module, a pulse control module, a sampling feedback module and a follow current protection unit. The in-phase input end of an operational amplifier OPA320 of the voltage follower module is connected with external reference voltage # imgabs0 #, the inverted input end of the operational amplifier OPA320 is grounded through a first resistor R1 and connected with the output end through a second resistor R2, and a filter capacitor C1 is connected to the two ends of the second resistor R2 in parallel. Through a linear constant current control and pulse cooperation mechanism, the current stability and the dynamic response speed of the semiconductor laser under the wide-range and high-frequency working condition are remarkably improved, and it is guaranteed that the laser output power is accurate and reliable.

Pulsed control of electric motors, and more particularly, to selectively adjusting one or more of a pulsing frequency, an amplitude of the pulses and / or a duty cycle of the pulses for reducing Noise, Vibration and Harshness (NVH).

High-power- (HP-) generator (10) configured to deliver high power with a high value of voltage and / or high current value to a pulsing unit (3), wherein the pulsing unit (3) is configured to deliver pulsed high power with a high value of voltage and / or high current with pulse-high-duration of 10 µs or less and pulse- low-duration of 10 µs or less to a capacitive load, in particular to a plasma process, the HP-generator (10) comprises: - a control input (11), configured to be connected to a control signal from an external pulsing control (9), wherein the pulsing control (9) also controls a pulse-high-duration and a pulse-low-duration of the pulsing unit (3), - a control unit (22) configured to adjust the output of the HP-generator (10) responsive to the signal at the control input (11) in a way that the output voltage and / or current of the HP-generator (10) may be changed during a pulse-low-duration and is constant during the following pulse-high-duration of a pulse at the output of the pulsing unit (3)

The invention discloses an automatic focusing control method based on a displacement sensor, and relates to the technical field of motion control, and the method comprises the steps: collecting a distance signal of a detection target, and converting the distance signal into a physical distance value through a calibration coefficient; the motion control card performs difference operation on the physical distance value and the standard focusing distance to obtain a position deviation value, performs data smoothing processing by using a Kalman filtering algorithm, establishes a state prediction model by using latest N frames of cache data, generates position compensation data, converts the position compensation data into a pulse control quantity, and when the pulse control quantity exceeds a preset threshold value, outputs the position compensation data; generating a motor driving instruction according to a PID control algorithm; and controlling the stepping motor driver to drive the lens assembly to perform position compensation according to the motor driving instruction, so that a standard focusing distance is kept between the lens assembly and the detection target. According to the invention, the problems of response lag and poor anti-interference capability in a traditional automatic focusing system are solved, and the dynamic response characteristic and the control precision of the system are improved.

The present invention relates to apparatus for use with a treatment device configured to perform a treatment operation on a body part of a subject, a system and a method. The apparatus (40) comprises a processing unit (46) configured to estimate a position of a current treatment area corresponding to an area of skin that the treatment device would apply a light pulse to while at the current treatment position; determine the distance, in movement direction of the treatment device, of the current treatment area from a previous treatment area corresponding to an area of skin that the treatment device applied a previous light pulse to while at a previous treatment position; determine if the distance is zero or an integer multiple of the width of the treatment area in movement direction of the treatment device; and generate a pulse control signal for controlling the treatment device to generate and apply a light pulse to the current treatment area of the skin if the distance has been determined to be zero or an integer multiple of the width of the treatment area.

The invention relates to an in-cabin light supplementing control method and system and a vehicle. The method comprises the steps that the working state of a second camera is obtained; based on the working state of the second camera, outputting the same pulse control signal to a preset light supplement lamp and to the first camera and / or the second camera; based on the same pulse control signal, the light supplementing time of a preset light supplementing lamp is controlled, and the exposure time of the first camera and / or the exposure time of the second camera are / is controlled; wherein the light supplementing time of the preset light supplementing lamp is greater than the exposure time of the first camera and the exposure time of the second camera, so that light supplementing is carried out in the corresponding exposure time. Thus, the light supplementing time of the preset light supplementing lamp at the corresponding position, the exposure time of the first camera and / or the exposure time of the second camera are controlled, light supplementing is carried out in the corresponding exposure time, and the image quality and the algorithm precision during exposure are further improved.

The invention relates to an event trigger pulse control method and system of a neural network under a fraud attack, and belongs to the technical field of neural network control. Comprising the following steps: establishing a coupling neural network model containing time variation and time delay, and determining a synchronization target of the coupling neural network model; acquiring state information of the coupled neural network model, and establishing an error coupled neural network system model according to the state information; designing a saturation pulse controller according to the error coupling neural network system model and the synchronization target; obtaining a first sufficient condition and a second sufficient condition based on the error coupling neural network system model and the saturation pulse controller; obtaining a first optimization mathematical model according to the first sufficient condition and the second sufficient condition; and calculating by using the first optimization mathematical model to obtain the maximum estimation of the pulse control gain matrix and the attraction domain. According to the method, the joint influence of actuator saturation, spoofing attack and pulse effect on the overall performance of the system is effectively solved.

According to the double-pulse co-switching optimal orbital transfer method for the lunar large elliptical orbit, firstly, a double-pulse co-switching orbital transfer control strategy based on a two-body nonlinear model is calculated according to the known initial state of the lunar orbit and the state of a target orbit, and through two times of pulse control in the tangential direction, the optimal orbital transfer control strategy is obtained; meanwhile, the average semi-major axis, the average eccentricity rate and the average latitude argument of the large elliptical orbit are adjusted, the speed increment minimum problem is converted into the one-dimensional nonlinear function minimum problem to solve the optimal orbital transfer strategy, and accurate transfer between any two elliptical orbits is achieved; then, a two-body orbit model is designed as an initial value, numerical integration is carried out on the average orbit elements under the influence of perturbation force, the two-body model is corrected, and then a real orbital transfer control strategy of the average orbit parameters under the influence of perturbation force is obtained; the problem that the problem becomes a time-varying problem and is difficult to solve due to the fact that the short-cycle term introduced by directly adopting instantaneous orbit element description is solved, and the engineering practical value of the algorithm is improved.

The invention provides an acupoint positioning and electric pulse regulation and control device and method based on electrical impedance feedback, and the device comprises a bioelectrical impedance detection module which is provided with a flexible wearing hardware part, and the flexible wearing hardware part is provided with an electrode for collecting a skin electrical impedance signal, the bioelectrical impedance detection module determines a target acupuncture point area for placing an electrode according to the electrical impedance signal; the initial pulse output module is used for outputting a preset initial electric pulse signal to an electrode of the flexible wearing hardware part; the dynamic cooperative control module is used for adjusting an electric pulse parameter according to a real-time skin electrical impedance signal acquired by the electrode after the initial electric pulse signal is applied to the target acupuncture point area through the electrode; the electric pulse output module outputs electric pulse signals to an electrode according to the adjusted electric pulse parameters, acupuncture points can be accurately positioned, the electric pulse output parameters can be accurately adjusted, stimulation output is dynamically optimized through a feedback mechanism under the condition that the skin state of a patient changes or the characteristics of the acupuncture points are different, and the treatment effect and the comfort of the patient are improved.

A method of etching a substrate that includes: generating a first plasma from a first gas flowing into a first chamber by applying a first power pulse to a first electrode located in the first chamber over a first time duration; and forming a recess in a substrate located in a second chamber, the forming including: providing radicals from the first chamber into the second chamber; applying a plurality of second power pulses to a second electrode located in the second chamber during a second time duration to generate a second plasma in the second chamber from a second gas flowing into the second chamber, the first chamber being pressurized higher than the second chamber; and applying a plurality of third power pulses to a third electrode located in the second chamber during a third time duration to accelerate ions of the second plasma.

The invention provides a high-reliability high-density three-dimensional integrated multichannel millimeter wave transceiving integrated radio frequency micro module, which adopts three-dimensional ceramic packaging as a packaging body and comprises an amplitude-phase unit and a transceiving unit, and the two units and a cover plate realize electrical vertical interconnection and airtight packaging through three-dimensional stacking. The micro module receives an input signal, the input signal enters a receiving channel after being selected by a switch, an amplitude-limiting low-noise chipset in the micro module carries out amplitude-limiting amplification on the received signal, then the received signal is output to an amplitude-phase multifunctional chip, and the received signal is synthesized and output after amplitude-phase adjustment and amplification. A transmitting input signal is input to the amplitude-phase multifunctional chip after being subjected to power division, is subjected to power amplification after being subjected to amplitude-phase adjustment and amplification, is selected by the transmitting-receiving switch, and is radiated and output through the antenna. A negative electricity protection circuit and a pulse modulation circuit are integrated in the micro module, and pulse control of transmitting and receiving work of the micro module is achieved. The micro module adopts a stepped heat dissipation technology of the chip, the substrate, the functional unit and the micro module, and has very strong practicability.

The embodiment of the invention provides a display control method, a display module and electronic equipment, which are used for improving the problem that a display screen refreshed by regions is easy to cause uneven brightness and the like. The method comprises the following steps: outputting a first pulse control signal of a first frequency, wherein the first pulse control signal is used for controlling a first pixel circuit to write first data according to the first frequency; outputting a second pulse control signal of a second frequency, wherein the second pulse control signal is used for controlling a second pixel circuit to write second data according to the second frequency; the first pixel circuit and the second pixel circuit are pixel circuits located in different rows, the first frequency is larger than the second frequency, and the pulse width of the first pulse control signal is smaller than that of the second pulse control signal.

The utility model provides a high-voltage pulse generating device and a test system. The high-voltage pulse generating device comprises a main control unit, a driving circuit, a pulse control circuit with a wide bandgap semiconductor power device, and an output circuit, the first end of the main control unit is coupled with the first end of the driving circuit, the second end of the driving circuit is coupled with the first end of the pulse control circuit, and the second end of the pulse control circuit is coupled with the output circuit; the main control unit is configured to generate two paths of first PWM (Pulse Width Modulation) signals with dead time control; the two paths of first PWM signals are sent to the driving circuit; and the driving circuit is configured to process the first PWM signal and then drive the pulse control circuit, so that the output circuit generates a high-voltage pulse signal. According to the utility model, the structure is simple, the cost can be greatly reduced, the output pulse speed can be flexibly set, and the CMTI test requirements of different isolated gate drivers can be met.

The invention discloses a thermoelectric refrigerating unit self-adaptive temperature control system and method based on transient supercooling. In the system, a temperature detection unit is used for acquiring cold end temperature information of a thermoelectric refrigerating unit; the thermal load monitoring unit is used for monitoring thermal load information of the thermoelectric refrigerating unit; the PID controller is used for controlling the cold end temperature of the thermoelectric refrigerating unit at the target temperature as an optimization target, and regulating and outputting a first current by utilizing the cold end temperature information; the transient pulse controller regulates and controls the amplitude limiting current based on the thermal load information; the feedforward controller adjusts the advanced regulation and control current based on the thermal load information and outputs a second current; the amplitude limiting output unit is used for outputting and limiting the total current of the first current and the second current to be within an amplitude limiting current according to the amplitude limiting current generated by the transient pulse controller; the power output unit drives the thermoelectric refrigerating unit based on the current generated by the amplitude limiting output unit. The thermal load resistance of the thermoelectric refrigerating unit can be remarkably improved, and the temperature control precision and stability are improved.

Circuits and methods for increasing the long-term reliability and performance of phase change material (PCM) switches. To overcome the effects of electromigration damage of the resistive heater(s) of a PCM switch and of the PCM itself, and thus improve long-term performance and reliability, embodiments apply an AC control pulse of equal power to a conventional DC control pulse. An embodiment encompasses a PCM switch, including a PCM region including first and second signal ports configured to be coupled to a signal source; a resistive heater adjacent the PCM region and including first and second heater control signal ports; and a source of AC control pulses coupled to the first and second heater control signal ports, the AC control pulses having a first power profile to transform the PCM region into a low resistance state and a second power profile to transform the PCM region into a high resistance state.

The invention relates to the technical field of battery pack charging control, and particularly discloses a sectional pulse charging control method and system, and the method comprises the steps: dividing a charging process into a plurality of charging intervals; a buffer zone is arranged between every two adjacent intervals; constructing a pulse control objective function; optimizing the initial parameters in combination with a particle swarm algorithm; performing transition control on the pulse amplitude and the duty ratio in the buffer zone, and fusing the optimization signal and the buffer signal to generate a final charging control instruction; compared with the prior art that a fixed current pulse or a simple segmented threshold hopping strategy is mostly adopted, voltage sudden change and severe temperature rise are likely to occur, and particularly under a nonlinear charging working condition, flexible transition of control parameters and service life-friendly charging adjustment are difficult to achieve, the method has the advantages that due to a buffer transition mechanism, the service life of the battery is prolonged, and the service life of the battery is prolonged. And pulse parameters are dynamically adjusted in combination with multi-objective optimization, so that the stability of charging control is improved and the cycle life of the battery pack is prolonged.

The invention relates to the field of instrument testing, and discloses pulse controller testing equipment, which comprises a signal simulation unit, a parameter acquisition unit, a gas circuit control unit, a main control unit and a test board, the signal simulation unit generates simulated dust concentration and pressure difference signals; the parameter acquisition unit is used for acquiring blowing interval time, duration time and output voltage signals in real time; the air path control unit provides compressed air with adjustable pressure through an air storage tank, a pressure regulating valve and a pulse valve driving module, and a pressure sensor and a flow sensor feed back signals in real time so as to adjust air path parameters. The main control unit controls the test process and judges whether the pulse controller is abnormal based on the collected data; the test bench realizes equipment fixation and connection through a clamp and an electrical / pneumatic port. The device calculates a comprehensive abnormal index through standardized parameters, supports multi-stage early warning and fault determination, and is suitable for automatic testing of the pulse controller.

The invention provides a wake flow redirection control method and system based on cabin type laser radar prediction, and relates to the technical field of laser radar remote sensing detection, and the method comprises the steps: obtaining first wake flow propagation path data of a target unit at different spatial positions and first wake flow speed data of different time points through a cabin type laser radar; performing correlation analysis on the first wake flow propagation path data, the first wake flow speed data and a preset unit wake flow speed attenuation coefficient to obtain a correlation analysis result; obtaining a wake flow prediction result based on the first wake flow propagation path data and the correlation analysis result; obtaining wake flow redirection control demand data based on a preset wake flow control target and the calibrated first wake flow speed data; converting the pulse parameter into a pulse control signal based on wake flow redirection control demand data; based on the pulse control signal, accurate redirection control over the wake flow of the wind turbine generator is achieved, cross interference of the wake flow is reduced, and the overall power generation efficiency of a wind power plant is improved.

The invention provides an extra-high voltage hybrid DC power transmission control system and method, and the system comprises a controller which is used for transmitting fault control trigger pulse control information to a hybrid converter when a transmitting end AC fault occurs; the hybrid converter is used for reducing the injected active power and the output direct-current power when the extra-high voltage direct-current power transmission line is in a normal operation condition; based on the state of the ultra-high-voltage direct-current power transmission line in the normal operation working condition, the full-bridge sub-module in the ultra-high-voltage direct-current power transmission line is controlled to output negative voltage, and short-circuit fault current is suppressed. And the turn-off current source type current converter is used for triggering an internal lightning arrester to generate a commutation voltage when a receiving end AC fault occurs, and carrying out commutation by combining the power grid voltage with the commutation voltage. According to the system, a hybrid converter is adopted at a sending end, active power and reactive power of the sending end are flexibly regulated and controlled, and negative voltage is output to suppress short-circuit fault current when a direct-current short-circuit fault occurs; and when the receiving end has an alternating current fault, reliable commutation can still be ensured.

The invention relates to the technical field of chemical reaction equipment, in particular to a pulse intermittent water vapor bottom blowing coupling mechanical stirring enhanced mixing device which comprises a tank body, a sealing cover is mounted on the top surface of the tank body, a stirring assembly used for stirring the interior of the tank body is mounted on the sealing cover, the stirring assembly extends into the tank body, and the stirring assembly is connected with the tank body. An air outlet head is arranged at the bottom in the tank body, the air outlet head is communicated with a steam generation unit through an air supply pipe, and the steam generation unit is electrically connected with a pulse control unit used for sending variable frequency signals with adjustable pulse frequency to the steam generation unit. The steam injection frequency is controlled through the pulse control unit, the use amount of the steam is reduced, local high temperature generated by the system during continuous injection is avoided, the temperature is more uniform, meanwhile, convection can be further strengthened through nonlinear input, the periodic structure of the system is damaged, and the service life of the system is prolonged. And more chaotic flow regions are formed to enhance mixing and heat transfer efficiency, so that the production efficiency is improved, and the energy loss is reduced.

The invention relates to an ultrasonic atomization pulse type cold air jet cooling and lubricating device and an operation process thereof. The device comprises an air compressor, a cold air generator, a gas storage tank, a pulse control valve and an ultrasonic atomization nozzle module which are sequentially connected through a gas pipeline. The ultrasonic atomizing nozzle module comprises an ultrasonic transducer, a stepped amplitude-variable rod, a waterproof cover, a sealing cover and a focusing nozzle. In the working process, the stepped amplitude-variable rod amplifies the high-frequency mechanical vibration amplitude of the ultrasonic transducer, and cutting fluid is efficiently atomized into micron-sized liquid drops through the cavitation effect and the capillary wave effect; meanwhile, the cold air generator converts high-pressure air provided by the air compressor into low-temperature gas and temporarily stores the low-temperature gas in the gas storage tank, and the low-temperature gas is released in a pulse mode through the precise pulse control valve according to the set frequency and duty ratio. The pulse low-temperature gas enters the sealing cover to be fully mixed with the atomized liquid drops, uniform gas-liquid two-phase jet flow is formed, finally, the jet flow is accelerated by the focusing nozzle to form high-speed convergent jet flow, the high-speed convergent jet flow acts on a cutting area accurately, and pulse type efficient cooling and lubricating cutting machining is achieved.

The invention discloses an electric actuator control method and system, electronic equipment and a storage medium, and relates to the technical field of automatic control. The method comprises the following steps: acquiring current position data and electromagnetic signal intensity data of the electric actuator; calculating a magnetic pole position offset according to the electromagnetic signal intensity data, and determining a compensation coefficient according to the magnetic pole position offset; calculating a compensation position based on the compensation coefficient and a reference position of the electric actuator, and determining a magnetic flux distribution parameter in combination with the current position data and the compensation position; generating a pulse control signal through the magnetic flux distribution parameter, and outputting the pulse control signal to the electric actuator; and adjusting the magnetic pole position of the electric actuator to the compensation position according to the pulse control signal. By implementing the technical scheme provided by the invention, the effect of improving the control precision of the electric actuator is achieved.

A control device controls a contact probe in synchronization with a pulse-controlled light having a predetermined wavelength, a measurement instrument measures a characteristic of a sample to be inspected or an analysis sample, and a circuit constant or a defect structure of the sample to be inspected is estimated based on a circuit model created by an electric characteristic analysis device configured to generate the circuit model based on a value measured by the measurement instrument and a detection signal of secondary electrons detected by the charged particle beam device.

The utility model belongs to the field of chip testing and sorting technology, especially a chip testing and sorting device. Aiming at the problems that the existing chip testing and sorting devices have low automation, are inconvenient for fast chip sorting, and have low work efficiency, the following scheme is proposed, which includes a workbench, the top of which is provided with a controller for electrical control, and the bottom of which is provided with four supporting legs; a vibration plate; the vibration plate is used for vibrating and transmitting the chip and is arranged on the top of the workbench, the top of which is provided with a transmission mechanism for transmitting the chip, the top of which is provided with a straight plate, the top of which is fixedly installed with a top plate, and the bottom of which is provided with an electromagnetic sorting mechanism for chip sorting. The utility model can automatically sort the chip, use pulse control to energize the electromagnet to generate magnetism, and control the sorting component to push and sort the chip, with high work efficiency.

The invention discloses a full-automatic intelligent door lock control method and system, a medium and a program product, and relates to the field of time registrations.The method comprises the steps that a retardation characteristic period is established according to a real-time working signal; progressively decreasing the driving torque according to a preset proportion at a preset time point before the second period of the two adjacent retardation characteristic periods arrives; when the change trend of the retardation characteristic period is decreased progressively, the current driving strategy is judged to be effective, and the unlocking or locking instruction continues to be executed; when the change trend of the retardation characteristic period increases progressively, establishing a pulse control sequence based on the recorded shortest retardation characteristic period; the motor is controlled to actively interrupt driving before locked-rotor through a pulse control sequence; counting the number of times of active interruption of driving in a preset time period, and when the number of times exceeds a preset threshold value, controlling the intelligent door lock to carry out failure prompt; and when the number of times does not exceed the preset threshold value, the intelligent door lock is controlled to complete unlocking or locking. The cost and the power consumption are reduced while the reliability of the intelligent door lock is improved.

Various boost circuits that are used to improve or reduce the time needed to transition an electric machine from an off-state to an on-state at the start of a next pulse during pulsed controlled operation. With these various boost circuits, the naturally generated Back Electromotive Force or “BEMF” that is induced when an electrical machine transitions from the on state to the off state at the end of an on pulse is harvested, rectified, and stored on a storage device. The harvested energy is then made available to the electric machine as a “boost” voltage at the onset of the next on pulse, resulting in a reduced transition time from the off-state to the on-state.

The invention discloses a bottom-attached tunnel desilting device and desilting method based on the pulsed jet ground breaking effect, the bottom-attached tunnel desilting device comprises a crawler-type advancing module, a connecting frame, a desilting module and a conveying pipeline, the connecting frame is fixed on the front side of the crawler-type advancing module, and the conveying pipeline comprises a negative pressure water pipe and a high pressure water pipe; the jet module comprises a signal processing system, a high-precision sensor, a high-pressure water pump, a pulse controller and a steering engine; the suction module comprises a sludge inlet box, a connecting rod structure, a brush and a spiral centrifugal pump; through the innovative pulse jet technology, the self-circulation system and the terrain self-adaption design, an efficient, energy-saving and stable operation mode can be provided in the tunnel desilting process, and the tunnel desilting device has high environmental adaptability and is suitable for tunnel desilting operation of various complex terrains.

The invention relates to the technical field of oil field separate-layer oil production, and particularly discloses an oil well pressure pulse control separate-layer oil production tubular column, an intelligent separate-layer oil production device is arranged in the tubular column, the intelligent separate-layer oil production device comprises two oil inlet channels capable of regulating and controlling the liquid inlet flow, and an inlet of one oil inlet channel is formed in the side wall of the tubular column; the intelligent separate recovery device is connected with the pulse receiver through a signal line, the output end of the intelligent separate recovery device is connected with an oil well pump, the oil well pump is connected with a sucker rod and pumps oil out through the sucker rod, a packer is connected to the outside of the tubular column and arranged below the intelligent separate recovery device, a screen pipe is connected to the tubular column below the packer, and the screen pipe is connected with the output end of the intelligent separate recovery device. And the screen pipe is communicated with an inlet of the other oil inlet channel. According to the tubular column, specific pressure pulse codes can be generated in a shaft sleeve through the pressure pulse generator, after the pulse receiver detects and analyzes the codes, the intelligent separate recovery device is controlled to automatically adjust different opening degrees of oil nozzles of corresponding production layers according to different pulse instructions, and oil layer separate recovery is achieved without moving the tubular column.