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263results about How to "Simple control" patented technology

Photovoltaic grid-connected inverter and alternating current side starting method of photovoltaic grid-connected inverter

The invention relates to a photovoltaic grid-connected inverter and an alternating current side starting method of the photovoltaic grid-connected inverter, and the inverter comprises a bus capacitor, a DC / AC inverter circuit, a control unit and a pre-charging circuit. The input end of the DC / AC inverter circuit is connected with the bus capacitor, and the output end of the DC / AC inverter circuit is connected with a power grid; the input end of the pre-charging circuit is connected with a power grid, the output end of the pre-charging circuit is connected with the bus capacitor, and the pre-charging circuit is used for taking electricity from the midpoint of the grid-connected relay to charge the bus capacitor; the bus capacitor is used for starting the DC / AC inverter circuit after charging is completed; the control unit is used for controlling work of the pre-charging circuit. According to the invention, the AC side starting of the inverter can be realized, the starting process is safer, and the work is stable and reliable.
Owner:SHANGHAI SIGEYUAN INTELLIGENT TECH CO LTD

SiC MOSFET drive circuit and control method thereof

The invention discloses a SiC MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) driving circuit and a control method thereof, the SiC MOSFET driving circuit comprises an active current source driving circuit, a SiC MOSFET, a load current detection circuit, a drain-source inter-electrode voltage overshoot detection circuit, an analog-to-digital conversion module and an FPGA (Field Programmable Gate Array) module, and a self-adaptive adjustment algorithm is built in the FPGA module. The load current detection circuit and the drain-source inter-electrode voltage overshoot detection circuit have low requirements for real-time performance, use of high-speed simulation devices is avoided, hardware design cost is reduced, a self-adaptive adjustment algorithm can adjust SiC MOSFET gate drive parameters in real time according to output of the load current detection circuit and the drain-source inter-electrode voltage overshoot detection circuit, and the self-adaptive adjustment algorithm can adjust the gate drive parameters of the SiC MOSFET in real time according to the output of the drain-source inter-electrode voltage overshoot detection circuit. Therefore, overshoot and switching loss are self-adaptively balanced, and safe operation of the SiC MOSFET is ensured. The technical problems that a SiC MOSFET driving circuit driven by an active grid is high in hardware cost and is difficult to balance voltage and current overshoot and switching loss are solved.
Owner:ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD +2

Loop closing transformer based on single-core asymmetric phase-shifting transformer and control method thereof

ActiveCN119109338ARealize amplitude-phase decoupling compensation adjustmentFlexible compensationFlexible AC transmissionTransformersVoltage phasorsMechanical engineering
The invention discloses a closed-loop transformer based on a single-core asymmetric phase-shifting transformer and a control method of the closed-loop transformer. The closed-loop transformer comprises a single-core asymmetric phase-shifting transformer bank and a voltage-regulating transformer bank. One end of a primary side winding of the single-core asymmetric phase-shifting transformer is connected with a three-phase power supply, and a center tap serves as the output end of the single-core asymmetric phase-shifting transformer and is connected with the primary side of the voltage regulating transformer. A secondary side winding of the single-core asymmetric phase-shifting transformer is in triangular connection; the other end of the primary side winding of the regulating transformer is grounded; a wire at one end of a secondary side winding of the regulating transformer is directly led out as an output end of the closed-loop transformer, and the other end is grounded. Compared with the prior art, the amplitude-phase decoupling adjustment of the voltage phasor difference on the two sides of the loop closing point can be realized, the control rule and the control mode are simple, the wiring mode is simple, the adjustment mode is flexible, the adjustment range is large, and the adjustment precision is high.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Aerosol-generating device

PendingCN119547928ASimple controlSimplify hardware configurationTobaccoMechanical engineeringGate control
The invention provides an aerosol generating device, comprising a power supply assembly comprising a power supply; the control assembly comprises a controller and a gate control switch tube; the electric element comprises a first part and a second part, the first part and the second part are both connected with the gating switch tube, and the first part and the second part are configured to provide energy for enabling the aerosol generating product to generate aerosol; the time delay circuit is arranged between the first part and the gate control switch tube, or the time delay circuit is arranged between the second part and the gate control switch tube; wherein the controller is configured to drive the gate control switch tube based on the driving signal, the circuit between the electric element and the power supply is used for conduction, and one of the first part and the second part generates energy before the other one.
Owner:SHENZHEN FIRST UNION TECH CO LTD

Telescopic structure robot system based on ROS

The invention discloses a telescopic structure robot system based on an ROS. The telescopic structure robot system comprises a movable chassis, a vertical elevator installed above the movable chassis, a telescopic arm and a clamping jaw. The telescopic structure robot system is designed based on ROS2, and the telescopic structure robot system comprises a visual recognition control module. The main controller is an STM32, and the main controller adopts an OpenCTR B20 control panel of the Tuck innovation technology. Compared with a traditional complex and expensive robot system, the robot with the telescopic structure has a simpler structure and a simpler control mode, so that the robot with the telescopic structure is easier to develop and lower in cost; an ROS is combined with an STM32 single-chip microcomputer for control, movement in any direction and grabbing in an effective range can be achieved, and the requirement for grabbing objects in various daily scenes can be easily met; meanwhile, articles can be automatically grabbed in combination with computer vision; the requirements of application scenes such as home, medical treatment and business are met, and popularization and marketization are easier.
Owner:ZHAOQING UNIV

High-power multi-module hydrogen-oxygen electrochemical device for locomotive and control method

The invention relates to the technical field of fuel cell locomotives, and provides a high-power multi-module hydrogen-oxygen electrochemical device for a locomotive and a control method.The control method comprises the steps that the number of started current cell stacks and the needed output power of each cell stack are taken, and the front-end pressure in a hydrogen loop is determined based on a multi-module system calibration table; the rotating speed set value of each loop execution device is calculated based on a linear interpolation method and a preset single-stack operation condition calibration table in the system, and the in-stack flow pressure of the cathode of each cell stack, the in-stack pressure of the anode of each cell stack and the actual value and the reference value of the temperature are calculated based on the linear interpolation method. And based on the difference between the actual value and the reference value, controlling the opening degree control quantity of other execution valves in each loop until the opening degree control quantity is smaller than a preset threshold value. According to the invention, the working parameters of each fuel cell stack can be independently controlled, differential adjustment of the output characteristics of each fuel cell stack can be realized on the premise of ensuring the requirement of the output power of the whole system, and the stability and reliability are high.
Owner:CRRC IND INST CO LTD

Single-motor-driven multi-degree-of-freedom uncovering mechanism and biological sample storage device

The utility model relates to the technical field of storage tank uncovering, and discloses a single-motor drive multi-degree-of-freedom uncovering mechanism and a biological sample storage device.The single-motor drive multi-degree-of-freedom uncovering mechanism comprises a main body plate and a drive motor, the surface of the main body plate is provided with a track rack and a guide assembly, and the surface of the guide assembly is provided with a fixing plate; the surface of the fixing plate is rotationally connected with a rotating seat, a transmission assembly is arranged between the rotating seat and the track rack, the driving motor is installed on the top of the rotating seat, and an output shaft of the driving motor is connected with the transmission assembly. According to the single-motor-driven multi-degree-of-freedom cover opening mechanism, by arranging the driving motor, the track rack, the position guiding assembly, the rotating base and the transmission assembly, after a cover is grabbed, the driving motor is started, the motor drives the transmission assembly and the cover to move along the track rack together, and then the position guiding assembly is matched for position guiding, so that the cover can be automatically opened and turned over to the other side; the operation process is convenient and the occupied space is small.
Owner:SHANGHAI TOFFLON MEDICAL EQUIP CO LTD

Temperature control valve

The invention discloses a temperature control valve. The temperature control valve comprises a valve body, a valve element assembly and a temperature sensing assembly. A conveying space and a temperature sensing space are defined by the valve body, a liquid inlet, a first liquid outlet and a second liquid outlet are formed in the peripheral wall of the valve body in the conveying space, the temperature sensing space is communicated with the liquid inlet, and the valve element assembly is movably installed in the conveying space; the temperature sensing assembly comprises a reversing piece and a temperature sensing piece, the reversing piece is movably arranged in the temperature sensing space, the temperature sensing piece is arranged in the temperature sensing space, and the reversing piece is in transmission connection with the temperature sensing piece and the valve element assembly; when the temperature of the fluid is lower than the preset temperature, the fluid drives the reversing part to drive the valve element assembly to communicate with the liquid inlet and the first liquid outlet and block the liquid inlet and the second liquid outlet. And when the fluid temperature is not lower than the preset temperature, the temperature sensing piece drives the reversing piece to drive the valve element assembly to communicate the liquid inlet with the second liquid outlet, and the liquid inlet and the first liquid outlet are blocked. The flow direction of the fluid does not need to be controlled through a temperature sensor and an electric control program, and the control mode of the flow direction of the fluid can be simplified.
Owner:GUANGDONG TINGJIA HYDRAULIC TECH CO LTD

Magnetic spinel recoverable adsorbent and preparation method and application thereof

The invention discloses a magnetic spinel recoverable adsorbent and a preparation method and application thereof, and the method comprises the following steps: (S1) fully mixing a FeCl3 aqueous solution, a MnCl2 aqueous solution and a NaOH aqueous solution to form a suspension; and (S2) putting the turbid liquid obtained by mixing in the step (S1) into a water bath kettle at 97 DEG C, heating for 120 minutes, repeatedly washing the obtained slurry with absolute ethyl alcohol and deionized water, removing residual alkaline substances, drying the obtained particles in a vacuum drying oven at 100 DEG C for 3-5 hours, sufficiently grinding, putting into a tubular furnace, and annealing for 180 minutes at 300-600 DEG C at a heating rate of 10 DEG C / min to obtain the FeMn2O4 magnetic adsorbent. The magnetic spinel recoverable adsorbent disclosed by the invention is high in adsorption capacity, and when the concentration of an antimony-containing solution is 600mg / L, the maximum adsorption capacity of FeMn2O4 is measured to be 2674.49 mg / g.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Cylinder control circuit and cylinder

The utility model provides an air cylinder control circuit and an air cylinder. The cylinder control circuit comprises a first relay; a first normally open switch, a first normally closed switch and a control end are arranged in the first relay; one end of the first normally open switch and one end of the first normally closed switch are respectively connected with an external power supply; the other end of the first normally-open switch is connected with any one of a forward electromagnetic valve and a backward electromagnetic valve of the air cylinder, and the other end of the first normally-closed switch is connected with the other one of the forward electromagnetic valve and the backward electromagnetic valve; the advancing solenoid valve is used for controlling air intake of an advancing air inlet of the cylinder, and the retreating solenoid valve is used for controlling air intake of a retreating air inlet of the cylinder; the control end of the first relay is used for receiving a control signal; the control signal is used for changing the on-off state of the first normally-open switch and the first normally-closed switch. The control mode of the air cylinder can be simplified, and the situation of control errors is avoided.
Owner:HEBEI GUNDAM INTELLIGENT EQUIP CO LTD +1

Charger control method, device, charger and vehicle

The present disclosure relates to a charger control method, device, charger and vehicle. The method is applied to a charger, which is a vehicle-mounted charger or a charging pile charger, and the method includes: obtaining a first voltage of a battery; determining a target operating mode of an LLC circuit according to the first voltage, wherein the target operating mode is a full-bridge mode or a half-bridge mode; and controlling the LLC circuit to operate according to the target operating mode. Thus, the operating mode of the LLC circuit can be dynamically switched according to the battery voltage to avoid the generation of uncontrolled rectifier current, so that the charger can operate safely, stably and reliably in various operating conditions, and the control method is simple and efficient.
Owner:BYD CO LTD

A magnetic sensitive thermostat assembly

The present invention discloses a magnetic sensitive thermostat assembly, comprising a housing having a circulation cavity and a magnetic sensitive thermostat arranged in the circulation cavity; the housing comprises a first shell, a small circulation water inlet, a large circulation water inlet and a water outlet; the magnetic sensitive thermostat is used to control the connection or blocking between the large circulation water inlet and the circulation cavity. The magnetic sensitive thermostat assembly provided by the present invention has the following advantages compared with the existing wax type thermostat assembly: 1. The manufacturing process is simple and the control method is simple; 2. The temperature sensing principle of the thermosensitive soft magnet is used to achieve the effect of accurate temperature control, and the sensitivity is high; 3. The risk of paraffin leakage is fundamentally eliminated.
Owner:CHUANDONG MAGNETIC ELECTRONICS CO LTD

Broadband 1-bit reconfigurable circularly polarized reflective array antenna based on multi-resonant structure

ActiveCN119275546Aelectrical size reductionreduce physical sizeAntenna arraysRadiating elements structural formsSoftware engineeringHemt circuits
The invention discloses a broadband 1-bit reconfigurable circularly-polarized reflective array antenna based on a multi-resonant structure. The broadband 1-bit reconfigurable circularly-polarized reflective array antenna comprises a reconfigurable circularly-polarized reflective functional layer, a circularly-polarized horn antenna and an acrylic support. The reconfigurable circular polarization reflection function layer is formed by periodically arranging M * N circular polarization reflection array antenna units with the same structure according to the interval of 0.4125 lambda 0. The circularly polarized reflective array antenna unit is composed of a radiation layer and a direct current bias layer, the radiation layer comprises a circuit pattern designed based on a multi-resonant structure, a PIN diode, a radiation dielectric layer and a reflection bottom plate, and the direct current bias structure comprises a direct current bias dielectric layer and a direct current bias circuit. 1-bit regulation and control of unit reflection phases can be realized by controlling the on-off states of the four PIN diodes, a + / -60-degree beam scanning function can be realized by adjusting the state of each circularly polarized reflective array antenna unit, and the circularly polarized reflective array antenna can be applied to wireless communication and satellite communication systems.
Owner:XIDIAN UNIV

Heat pump system based on photovoltaic photo-thermal, control method, equipment and storage medium

PendingCN119436616Astable outputProblems Affecting Power Generation EfficiencySolar heating energyHeat pumpsThermodynamicsMechanical engineering
The embodiment of the invention relates to the field of photo-thermal utilization, and discloses a heat pump system based on photovoltaic photo-thermal, a control method, equipment and a storage medium. The heat pump system comprises a photo-thermal evaporation assembly, a compressor and a condenser. The photo-thermal evaporation assembly comprises a main pipeline formed by a photovoltaic photo-thermal assembly and an evaporator which are sequentially connected in series, and a bypass pipeline communicated with the main pipeline. The controller is in control connection with the main pipeline and the bypass pipeline and used for controlling refrigerants to flow through the photovoltaic photo-thermal assembly and / or the evaporator in a switchable mode by adjusting the conduction state of the main pipeline and the conduction state of the bypass pipeline. According to the heat pump system and the control method provided by the invention, the technical problem of large heating value fluctuation caused by environmental influence is solved, and at least the purposes of flexibly utilizing the photovoltaic photo-thermal assembly to exchange heat with the evaporator and adapting to different environments can be achieved, so that heat energy is efficiently and stably provided for customers, and condensed water is prevented from being generated on the surface of the photovoltaic photo-thermal assembly.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI +1

Multi-degree-of-freedom piezoelectric motor stator structure, piezoelectric motor and driving method

PendingCN119628455AImprove application scenariosEasy to drivePiezoelectric/electrostriction/magnetostriction machinesElliptic motionControl theory
The invention discloses a multi-degree-of-freedom piezoelectric motor stator structure, a piezoelectric motor and a driving method, and different voltage signals are applied to piezoelectric patches around a stator to excite first-order extension and multi-order bending modal motion, so that a driving foot of the stator generates elliptical motion, and further a mover is pushed to move. Based on the two-degree-of-freedom piezoelectric stator, the two-degree-of-freedom piezoelectric stator is suitable for plane multi-degree-of-freedom driving and rotation multi-degree-of-freedom driving, and the applicable range of the piezoelectric stator is greatly widened; and the two driving modes are simple in structure assembly design, and are suitable for a microminiature multi-degree-of-freedom precision driving system. As the motor can meet the driving requirements of planar and rotary driving occasions, the assembly design requirements of the motor are greatly reduced, and decoupling movement in different directions can be realized; according to the multi-degree-of-freedom driving mode based on the two-degree-of-freedom piezoelectric stator, the design flexibility is high, and the performance of the motor is effectively improved.
Owner:XI AN JIAOTONG UNIV

Humanoid robot complex terrain balance control method based on state and disturbance observer

The invention provides a humanoid robot complex terrain balance control method based on a state and disturbance observer, and belongs to the technical field of robot application. The problem that the humanoid robot is unstable when walking in a complex environment is solved. According to the technical scheme, the method comprises the following steps that 1, a simplified humanoid robot'spring-damping 'inverted pendulum model is established; 2, designing a state and disturbance observer; step 3, based on the step 2, designing a state feedback controller taking a real-time observation object of the state and disturbance observer as input; 4, selecting an appropriate controller pole and an appropriate controller observation point; and 5, simulation verification of attitude balance control of the humanoid robot under the complex terrain is carried out. The method has the beneficial effects that the robustness of the robot to interference and the task execution capability can be improved particularly in disaster rescue and complex environment operation.
Owner:NANTONG UNIV

Fuel pump motor rotating speed control system

The invention discloses a rotating speed control system for a fuel pump motor. The rotating speed control system comprises the fuel pump motor and a driving module, the fuel pump motor controller is used for acquiring a target rotating speed of the fuel pump motor body and outputting a driving pulse signal to the driving module according to the target rotating speed; the driving module is used for converting the driving pulse signal into a driving voltage signal when the driving pulse signal is at a high level, and sending the driving voltage signal to the fuel pump motor body, so that the fuel pump motor body works; the fuel pump motor controller is further used for receiving the rotating speed of the fuel pump motor body when the fuel pump motor body works and adjusting the duty ratio of the driving pulse signal sent to the driving module according to the rotating speed and the target rotating speed when the rotating speed is out of the preset motor rotating speed range of the target rotating speed. The rotating speed of the fuel pump motor body is within the preset motor rotating speed range of the target rotating speed. By means of the system, accurate control over the rotating speed of the fuel pump motor body is achieved.
Owner:SHANGHAI SHANGSHI AVIATION ENGINE CO LTD

Micro-area femtosecond transient absorption detection system

The utility model provides a micro-area femtosecond transient absorption detection system. A femtosecond laser light source control assembly is used for generating laser; the first spectroscope is used for dividing the femtosecond laser into two beams of light; the pump light adjusting assembly is used for generating pump light and adjusting intensity and frequency; the detection light adjusting assembly is used for generating detection light and adjusting the intensity of the detection light to be proper and stable; the beam combiner is used for combining the pump light and the detection light; the transmission absorption detection assembly is used for irradiating a sample with the pump light and the detection light and generating detection transmission light; the reflection absorption detection assembly is used for irradiating the pump light and the detection light to a sample and generating detection reflected light; the microscopic imaging assembly is used for carrying out microscopic observation on the sample area and determining a to-be-detected position, and determining that the pump light and the probe light are accurately irradiated on the to-be-detected position; the detection assembly is used for collecting detection light. According to the utility model, ultrahigh space and time resolution is realized, and functions of transmission transient absorption detection, reflection transient absorption detection and micro-area microscopic imaging are integrated.
Owner:HUNAN UNIV

Aluminum plate cutting equipment capable of synchronously removing burrs

The utility model relates to aluminum plate cutting equipment capable of synchronously removing burrs. Comprising a base, and two sets of installation side plates which are oppositely arranged are fixedly connected to the base; a cutting device used for longitudinally cutting plates is installed between the two sets of installation side plates, and feeding roller devices used for clamping and conveying the plates are arranged on the upstream portion and the downstream portion of the cutting device. A polishing device used for polishing the cutting edge of the plate is arranged on the downstream portion of the feeding roller device. The rotary driving device is used for driving the feeding roller device, the cutting device and the polishing device to operate synchronously; the first adjusting device is installed between the two sets of installation side plates and used for adjusting the cutting device, and the second adjusting device is used for adjusting the grinding device. The cutting and polishing integrated machine integrates a cutting function and a polishing function, can synchronously perform cutting operation and deburring operation, is simple and convenient in operation process, and reduces the production cost and the occupied area of equipment.
Owner:TIANJIN JINGTAI TECH DEV

Multi-stage energy storage wave energy hydraulic energy conversion system and control method thereof

The invention discloses a multistage energy storage wave energy hydraulic energy conversion system and a control method thereof, and belongs to the technical field of ocean hydraulic power generation, the system comprises an overhanging frame, a hydraulic cylinder is arranged on the side, away from a shore-based platform, of the overhanging frame, a floater is arranged below the hydraulic cylinder, and a hydraulic PTO system is arranged in the overhanging frame; the hydraulic PTO system comprises an oil tank, a one-way valve set, an energy accumulator set and a generator set, the hydraulic cylinder is connected with the oil tank through the one-way valve set, and the energy accumulator set and the generator set are both connected with the oil tank in series. By adopting the multistage energy storage wave energy hydraulic energy conversion system, the energy accumulators with different volumes are combined with the mechanical energy storage flywheel, so that the pressure pulsation of hydraulic oil in the system is reduced as much as possible, the hydraulic energy conversion efficiency of a wave energy power generation device is improved, more electric energy can be output, the wave energy is subjected to graded energy storage and multistage smooth liquid flow, and the power generation efficiency is improved. The safety and sustainability of the power generation system are improved, and the working efficiency of the hydraulic wave energy conversion system can be improved.
Owner:烟台哈尔滨工程大学研究院 +1

Rapid pressure reduction system

The invention discloses a rapid pressure reduction system which comprises a blasting laboratory, a butterfly valve, a second blasting device, a negative pressure storage tank, an adjusting device used for adjusting the size of a blasting channel, a first blasting device and a vacuum equipment box used for vacuumizing the negative pressure storage tank. Two pipelines are connected between the blasting laboratory and the negative pressure storage tank, one pipeline is a short pipeline, and the other pipeline is a long pipeline; the butterfly valve and the second blasting device are installed on the short pipeline, and the butterfly valve is located between the blasting laboratory and the second blasting device. The adjusting device and the first blasting device are installed on the long pipeline, and the first blasting device is located between the blasting laboratory and the adjusting device. The device is simple, practical, small in occupied space and convenient to combine and use; the rapid blasting experiment and the top-speed blasting experiment of small animals and small products are met, and the control mode is simple, stable and reliable; the cost of experimental equipment is reduced; the device is high in practicability, safe to use and particularly suitable for popularization and application.
Owner:GUIZHOU FENGLEI AVIATION ORDNANCE CO LTD

Water quality detection method based on micro-sampling

The invention belongs to the technical field of water quality detection, and discloses a water quality detection method based on microsampling, which comprises the following steps: S1, arranging a sampling assembly at a first position, and enabling the sampling assembly to directly face a sampling port on a water storage tank; s2, controlling the sampling assembly to move to a second position and sealing the sampling port for sampling; s3, controlling the sampling assembly to move to a first position; s4, controlling the sampling assembly to move to a third position to directly face the water quality detection module; s5, controlling the sampling assembly to move to a fourth position and dropping liquid for detection; and S6, controlling the sampling assembly to return to the first position. Obstacle avoiding, sampling and liquid dropping are achieved by controlling the sampling assembly at the corresponding position, the control mode is simple, the moving distance is simple, the sampling assembly can rapidly achieve sampling and liquid dropping actions, and then the water quality detection efficiency can be improved.
Owner:NANJING YIMU INTELLIGENT TECHNOLOGY CO LTD

A smart water temperature control module

This utility model relates to an intelligent water temperature control module, characterized by comprising a flow regulation module, a pressure balancing module, and a temperature control module. The flow regulation module includes a first valve seat and a flow regulating valve core. The first valve seat has a first cold water inlet channel, a first hot water inlet channel, a flow regulating valve core mounting cavity, a first cold water outlet channel, and a first hot water outlet channel. The pressure balancing module includes a second valve seat and a balancing valve core. The second valve seat has a second cold water inlet channel, a second hot water inlet channel, a balancing valve core mounting cavity, a second cold water outlet channel, and a second hot water outlet channel. The temperature control module includes a third valve seat and a temperature control valve core. The third valve seat has a third cold water inlet channel, a third hot water inlet channel, a temperature control valve core mounting cavity, a mixing chamber, and a mixed water outlet channel. Each module exists independently and is independently controlled, simplifying the control method, reducing control and manufacturing difficulty, improving the control accuracy of water flow and temperature, and allowing for selection and combination of different modules.
Owner:NINGBO WANHAI VALVE TECH CO LTD

Passenger car one-key starting and remote control door lock control circuit and control method

The invention discloses a passenger car one-key starting and remote control door lock control circuit and method, and belongs to the field of passenger cars. The passenger car one-key starting and remote control door lock control circuit comprises a controller and an intelligent key Y1, and the controller is connected with a whole car power source V1; the controller is connected with a brake control switch K1; the controller is connected with the starting switch K4; the intelligent key Y1 is in wireless communication connection with the low-frequency antenna T1, and the low-frequency antenna T1 is connected with the controller; the controller is connected with a vehicle speed sensor S1, the controller is connected with a starter M1, the controller is connected with a driver door unlocking motor M3, a driver door locking motor M2, a passenger door unlocking motor M5 and a passenger door locking motor M4, and the controller is connected with a left turn signal lamp LED1 and a right turn signal lamp LED2. The parts are high in universality, high in interchangeability and low in cost; external wiring and control modes are simple, and maintenance is convenient; parts are small in size, are not limited by installation space and are convenient to install; and the one-key starting controller and the remote control door lock controller are integrally designed, so that the decentralized design of a circuit is avoided.
Owner:ANHUI ANKAI AUTOMOBILE

An integrated aircraft refueling light

The application provides an integrated aircraft refueling lamp, and belongs to the technical field of illumination design of an aircraft in-flight refueling system, and specifically comprises a shell assembly, a light source assembly, a driving assembly and a light source regulator, the shell assembly comprises a shell and first and second cavities arranged in the shell, the light source assembly is arranged in the first cavity, the driving assembly and the light source regulator are arranged in the second cavity, the light source assembly, the driving assembly and the light source regulator are sequentially connected, the light source assembly is provided with a refueling probe illumination mode and a conical sleeve floodlight illumination mode, the driving assembly is used for dividing voltage and controlling constant current, and the light source assembly is used for stabilizing input voltage when light intensity is changed. Through the processing scheme, the airborne equipment has the advantages of light weight, integration, low cost and simple control.
Owner:BEIJING ZHONG CHUANG HU LIAN TECH CO LTD

Pressure control well cementation system and method

The invention discloses a pressure control well cementation system and method. The system comprises an automatic throttling unit, an automatic slurry supplementing and pressurizing unit and a control center. Wherein the automatic throttling unit is used for being arranged between a well mouth and a mud tank so as to control the back pressure of the well mouth by adjusting the valve opening degree of the throttling valve; the automatic slurry supplementing and pressurizing unit is used for being communicated with a connecting pipeline between a well mouth and the automatic throttling unit so as to control well mouth back pressure by compensating fluid flow for the system. The control center is used for controlling the automatic throttling unit to adjust the valve opening degree of the throttling valve and / or controlling the automatic slurry supplementing and pressurizing unit to adjust the output fluid flow so as to control the back pressure of the wellhead based on the target fluid parameters of the wellhead and the parameter deviation of the corresponding actually-measured fluid parameters. The fluid parameters comprise pressure or fluid flow, and the actually-measured fluid parameters comprise actually-measured pressure of one end, close to the wellhead, of a throttling valve of the automatic throttling unit or actually-measured fluid flow of the output end of the automatic throttling unit. And pressure control in the whole well cementation process can be achieved.
Owner:CHINA NAT PETROLEUM CORP +1

Automatic stubble-supporting and combing device for regenerated rice and control method thereof

The present invention provides an automatic stubble-supporting and combing device for regenerated rice and a control method thereof, which mainly includes a frame, a power system, a combing and guiding device, a stubble-supporting device, a clutch linkage switch and a height adjustment system; the frame can be fixed to the rear of a regenerated rice combine harvester, and the clutch linkage switch is located on a control panel; the combing and guiding device and the stubble-supporting device are both mounted on a height-adjustable bracket, and a lifting device is used to realize the lifting and lowering adjustment of the stubble-supporting device and the combing and guiding device, and three sections of dredging sections and two sections of stubble-supporting sections are alternately arranged, and the total length of the three sections of dredging sections and the two sections of stubble-supporting sections is equal to the width of the harvester header. The present invention can realize the integration of stubble-supporting and combing and the automatic height adjustment while harvesting regenerated rice, reduce the workload of manual stubble-supporting and combing, and help to increase the yield of regenerated rice in the regeneration season.
Owner:JIANGSU UNIV

Air conditioner and air guide plate

The present invention provides an air conditioner and an air guide plate thereof. The air guide plate is used to be installed at the air inlet or air outlet of the housing of the air conditioner, and the air guide plate defines a purification chamber for accommodating purification substances, and the purification chamber is connected to the external environment through the air inlet and the air outlet. The air guide plate is configured to allow the airflow to enter the purification chamber through the air inlet when it is at a purification angle that makes the air inlet face the air inlet or the air outlet, and then flow out through the air outlet after being purified by the purification substances. The air guide plate of the present invention has a simple and novel structure and has a purification function, and the conception is very ingenious.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

Rapid cooling method for steam turbine cylinder

The invention discloses a rapid cooling method for a steam turbine cylinder. The rapid cooling method specifically comprises the following steps: a unit chemical maintenance and sliding pressure preparation stage: ensuring that main steam temperature corresponding to main steam pressure after switching has a superheat degree of more than 100 DEG C; in the steam temperature adjusting stage, the main steam pressure continues to be reduced through the high side and the low side after brake opening, and meanwhile shaft seal steam supply is kept uninterrupted; continuously performing uniform-speed sliding pressure by adjusting high and low until the main steam temperature is 35 DEG C lower than the temperature after the adjusting stage; in the gas temperature adjusting stage, when the pressure of the boiler enters 0.5 MPa, the boiler discharges water to execute a waste heat drying scheme, the water feeding pump stops running, and the deaerator stops heating; when the pressure of the steam pocket is as low as 0.2 MPa, opening a manual valve for completely discharging air of a steam-water system of the boiler; and a superheated steam evacuation valve is opened, the number of vacuum pumps is gradually increased, and other steam trap valves except the steam extraction steam trap valve are closed. According to the cooling method, an original system does not need to be changed, the operation process is simple, the temperature control gradient is smooth, the rotating machine equipment temperature control surface is uniform, and the cooling effect is remarkable.
Owner:SHAANXI NONFERROUS YULIN NEW MATERIAL GRP CO LTD

Energy storage thermal management system, thermal management method and energy storage equipment

The invention discloses an energy storage heat management system, a heat management method and energy storage equipment. A heat dissipation assembly; the heat dissipation pipeline is provided with a two-way valve, a three-way valve and a water pump, and the three-way valve, the two-way valve, the water pump, the cooling pipeline and the heat dissipation assembly form a double-module forced cooling circulation loop, a double-module natural cooling loop, a double-mode cooling loop and a waste heat recycling loop which can be alternately connected and disconnected; the control module is used for adjusting the working states of the two-way valve, the three-way valve, the water pump and the compressor refrigeration assembly according to at least one of the environment temperature, the battery management request data, the first water inlet and outlet temperature and the second water inlet and outlet temperature so as to configure the heat management mode of the battery module and the energy storage conversion module. Heat management loop control and switching among different heat management modes are achieved through the two-way valve and the three-way valve, the pipeline structure and the control mode are simple, the system reliability is high, and the energy utilization rate is high.
Owner:YINGHE NEW ENERGY TECH (SUZHOU) CO LTD