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163results about How to "Realize integrated control" patented technology

Coaxial drive and control structure for coaxial contrarotation rotor helicopter

ActiveCN102658865AAvoid High Stress StructuresGuaranteed StrengthRotocraftDrive shaftControl arm
The invention relates to a coaxial drive and control structure for a coaxial contrarotation rotor helicopter. A spindle is a hollow fixed shaft, the fixed shaft is provided with an upper rotor hub and a lower rotor hub, the upper rotor hub and the lower rotor hub are connected by virtue of a gearing shaft, the middle section of the fixed shaft comprises multiple support pillars which are uniformly distributed, an upper inclinator support and a lower inclinator support are arranged in spaces among the support pillars, a total propeller pitch sliding sleeve is arranged inside the lower section of the fixed shaft, a primary variable-pitch control rod is arranged in the total propeller pitch sliding sleeve and is located and hinged by virtue of a ball shaft, the upper part of the primary variable-pitch control rod is connected with the upper inclinator support and the lower inclinator support, and the lower end of the primary variable-pitch control rod is respectively hinged with a variable-pitch rocker arms by virtue of two variable-pitch connecting rods; and an upper inclinator and a lower inclinator are arranged between the upper rotor hub and the lower rotor hub and are hinged with an upper rotor control arm and a lower rotor control arm by virtue of an upper rotor control rod and a lower rotor control rod. By adopting the coaxial drive and control structure for the coaxial contrarotation rotor helicopter disclosed by the invention, the defect that a rotation control assembly penetrates a rotating surface is eliminated, thus the coaxial contrarotation rotor helicopter can be provided with more upper rotors and more lower rotors, lifting power of the helicopter is improved, full differentiating control can be realized, and manufacturing and processing costs of the spindle also can be reduced.
Owner:李游

Track transfer apparatus, track transfer connection device, transfer system and method

The invention discloses a rail transfer device. The device comprises a traveling mechanism comprising steel wheels, a first gyration mechanism connecting a saddle beam and the driving mechanism, a first gyration driving mechanism and a jacking-up mechanism, wherein the first gyration mechanism can rotatablely connect the traveling mechanism and the saddle beam; the first gyration driving mechanism can drive the driving mechanism to rotate relative to the saddle beam; the jacking-up mechanism is a jacking-up hydraulic cylinder comprising a cylinder body and a piston; the cylinder body and the saddle beam are relatively fixed; the outer end of the piston is provided with support legs; when the piston of the jacking-up hydraulic cylinder extends out, the support legs can jack the saddle beam up; and the device also comprises a grasping mechanism capable of grasping movable rails. In addition, the invention also discloses a rail transfer connecting device, a rail-type gantry crane transfer system and a transfer method thereof. The rail transfer device provided by the invention can realize the automation of transfer operation and improve the working efficiency of the transfer operation.
Owner:SANY MARINE HEAVY IND

Control method and device of photovoltaic power generation system and photovoltaic power generation system

The invention discloses a control method of a photovoltaic power generation system. The method includes the step of determining the average active power and average reactive power of an inverter, the step of determining a first active instruction signal of the inverter according to the synchronous rotation angular frequency and output angular frequency of a virtual synchronous machine, the step of determining a second active instruction signal of the inverter by means of practical charge status and a charge status set value of an energy storage device, the step of working out the current output angular frequency of the virtual synchronous machine and integrating the current output angular frequency to obtain the output voltage phase angle of the virtual synchronous machine, the step of working out an output voltage reference signal of the inverter, and the step of combining the output voltage phase angle and the output voltage reference signal into a reference instruction vector of output voltage of the inverter and conducting closed-loop control on the inverter on the basis of the reference instruction vector. On the basis of the control method, integrated control over the photovoltaic power generation system is achieved, and the photovoltaic power generation system can run more efficiently and stably. The invention further discloses the photovoltaic power generation system and a control device thereof.
Owner:SUNGROW POWER SUPPLY CO LTD

Integrated control mechanism for automatic walking device clutch and continuously variable transmission of lawn mower

The invention relates to an integrated control mechanism for an automatic walking device clutch and a continuously variable transmission of a lawn mower, which comprises a variable speed pulling rod, a pulling cable, a pulling cable fixing plate, a stroke plate, a belt pulley, a belt, and a small bevel gear, a large bevel gear, a return torsional spring, a return tension spring, a shifting fork, a clutch, a driving shaft, a compression spring and the like which are arranged in a chamber consisting of a box body and a box cover. When the integrated control mechanism is controlled, the variable speed pulling cable drives the stroke plate to drive the shifting fork so as to push the clutch to axially move through counter pull of the pulling cable fixing plate; and the clutch is meshed with the large bevel gear by combining elastic force of the compression spring on the driving shaft so as to drive the driving shaft to rotate. When the pulling cable is loosened, the shifting fork drives the clutch to separate from the large bevel gear in a reverse direction. Meanwhile, the integrated control mechanism achieves variable speed through clenching degree of the belt pulley and the belt, achieves integrated control of one pulling cable and has the advantages of ingenious design and simple structure.
Owner:NINGBO DELIN MACHINERY

Braking energy recovery system based on hydraulic ABS (anti-lock braking system) pressure regulator

The invention discloses a braking energy recovery system based on a hydraulic ABS pressure regulator. The braking energy recovery system comprises a pressure regulator with hydraulic ABS function, a main braking cylinder, a main cylinder vacuum booster, a drive motor, a braking controller, a vehicle control unit and a motor controller. The braking energy recovery system is characterized in that a pressure sensor is arranged on an oil outlet pipe of the main braking cylinder; a pressure sensor is arranged on the front wheel cylinder in the ABS pressure regulator; the signals of the two sensors are fed back to the braking controller; the drive motor is controlled by the motor controller; the braking controller keeps CAN (controller area network) communication with the vehicle control unit; the vehicle control unit keeps CAN communication with the motor controller; and the pressure regulator is used for controlling two braking oil circuits from a left front wheel to a right rear wheel and from a right front wheel to a left rear wheel. According to the invention, the braking energy can be recovered by using the motor to feed back the braking force, and the pressure of the wheel cylinder can be boosted, maintained and reduced by using the ABS pressure regulator, thereby realizing integrated control of braking energy recovery and ABS.
Owner:TSINGHUA UNIV

Greenhouse water-fertilizer-gas integrated intelligent irrigation and waste liquid recovery system

The invention relates to a greenhouse water-fertilizer-gas integrated intelligent irrigation and waste liquid recovery system. The system comprises a control unit, and a water supply unit, a water-fertilizer coupling unit and an irrigation unit connected sequentially through a pipeline; a disinfection and air-entrapping unit is further installed between the water-fertilizer coupling unit and the irrigation unit, the outlet end of the irrigation unit is connected with the inlet end of a waste liquid backflow treatment unit, and the inlet end of the irrigation unit is connected with the outlet end of the waste liquid backflow treatment unit through the pipeline; the disinfection and air-entrapping unit comprises a magnetizing device, an air-entrapping and disinfection device and a gas-liquidmixing pump; the air-entrapping and disinfection device comprises an air purifier and a gas pump connected with the inlet end of the air purifier; a control system comprises a controller and a human-machine interaction interface. Compared with the prior art, disinfection treatment is conducted before air-entrapping treatment, which promotes the respiratory efficiency of plant roots and reduces the risk of plant root poisoning, and by recycling waste liquid, environmental pollution and resource waste are reduced.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Hill starting system and use method thereof

The invention provides a hill starting system. The hill starting system comprises a two-position three-way electromagnetic valve, a load sensing valve, an ABS valve, a gearbox controller and a hill starting switch. An air inlet of the two-position three-way electromagnetic valve is sequentially communicated with an air outlet of an air compressor through a foot valve, an air cylinder, a four-protection valve and a drier, an exhaust port of the two-position three-way electromagnetic valve is communicated with an air inlet of the ABS valve through the load sensing valve, the two-position three-way electromagnetic valve and the ABS valve are in signal connection with a hill starting controller, and the gearbox controller is in signal connection with the hill starting controller, the hill starting switch and an engine. During use, firstly the hill starting switch is pressed, a manual valve is switched off, an accelerator is trodden, the hill starting controller automatically controls the engagement depth of a clutch and coordinates the output torque of the engine according to hill resistance, currently needing to be overcome, obtained through calculation, and a vehicle is made to be started smoothly. By means of the design, the structure is simplified, the starting response speed is increased, and integrated control of a brake, the clutch and the engine is achieved.
Owner:DONGFENG COMML VEHICLE CO LTD

Distributed message control device and method and building control system

The invention discloses a distributed message control device and method and a building control system. The device comprises a collection unit and a unification unit. The collection unit is used for collecting a message transmitted by each subsystem in more than one subsystem, wherein the message is a message transmitted by each subsystem through a protocol of the subsystem; the processing unit isused for processing the message transmitted by each subsystem by adopting a preset template to obtain a logic message in the message transmitted by each subsystem, wherein the preset template is a template matching each subsystem and the logic message is a message conforming to set logic or not. The unification unit is used for performing protocol format unification processing on logic messages inthe messages transmitted by each subsystem to obtain standard messages, wherein the standard message is a message conforming to a set protocol format. According to the scheme, a problem of high integration difficulty caused by non-uniform hardware interfaces and protocols of different subsystems in the building field equipment system can be solved, and the effect of reducing the integration difficulty of the building field equipment system is achieved.
Owner:GREE ELECTRIC APPLIANCES INC

Electric control system of air heating furnace and control method

The invention discloses an electric control system of an air heating furnace. The system comprises a bran room feeding control module, an empty furnace feeding module, an automatic combustion module,a first stop module and a frequency changer control module, wherein the bran room feeding control module is used for controlling fuels to enter a bran barrel; the empty furnace feeding module is usedfor controlling fuels to enter a combustion chamber; the automatic combustion module is used for controlling the fuels in the combustion chamber to be combusted automatically, and different frequencychanging control modes are set; the first stop module is used for stopping on-load operating of the electric control system; and the frequency changer control module adopts linear control modes and used for controlling the output frequency of an on-load frequency changer, and the linear control modes correspond to the frequency changing control modes set in the automatic combustion module. The invention further discloses a control method. According to the electric control system and the control method, the different control modes are selected through the frequency changer control module according to drying equipment, with different heat requirements, connected and matched with the air heating furnace, different interval adjusting modes are set, and the output heat control sensitivity and accuracy of the air heating furnace are improved; and by adopting the linear control modes, heat output of the air heating furnace can be smoothly transited, and heat output has better stability and accuracy.
Owner:ANHUI GUWANG DRYING MACHINERY CO LTD

Method for determining straight shearing strength admissible value of bridge deck pavement bituminous mixture

InactiveCN103344509ASimplify the process of determining the allowable value of shear strengthReasonable designMaterial strength using steady shearing forcesBridge deckUltimate tensile strength
The invention discloses a method for determining a straight shearing strength admissible value of a bridge deck pavement bituminous mixture. The method comprises the following steps of: 1, calculating shearing strength of a bridge deck pavement layer; 2, determining shearing strength and a shearing strength allocation proportion of each bituminous mixture pavement layer; 3, determining temperature of each bituminous mixture pavement layer; 4, setting accumulated standard axle load frequency and running speed in each month; 5, calculating an allowable rutting depth of each bituminous mixture pavement layer; 6, determining the direct shearing strength admissible value of the bituminous mixture adopted by each bituminous mixture pavement layer; and 7, outputting the result. The method is simple in steps, reasonable in design, low in investment cost, simple and convenient to use and operate and good in using effect, and the defect that the influence of the traffic volume, running speed, air temperature and mechanical response on the rutting cannot be reflected in the existing method for determining the shearing strength admissible value of the bituminous mixture can be effectively overcome.
Owner:GANSU ROAD & BRIDGE CONSTR GROUP

Device and method for preparing activated coke by pyrolysis of domestic waste

The invention discloses a device and method for preparing activated coke by pyrolysis of domestic waste. The device mainly comprises a drying rotary kiln, a microwave pyrolysis furnace, a pyrolysis gas combustion chamber, an air preheater, a steam generator, a coke sample activation furnace and a flue gas purification tower; the drying rotary kiln is connected with the microwave pyrolysis furnace,and a flue gas outlet is connected with the flue gas purification tower, an induced draft fan and a chimney through a pipeline; the microwave pyrolysis furnace is connected with the induced draft fanand the pyrolysis gas combustion chamber through a pipeline, a flue gas outlet of the pyrolysis gas combustion chamber is connected with the air preheater, one way of the air preheater is connected with a hot-air inlet of the pyrolysis gas combustion chamber, and the other way is connected with the drying rotary kiln; and a storage chamber is connected with the coke sample activation furnace, a flue gas outlet of the coke sample activation furnace is connected with the microwave pyrolysis furnace through a gas bypass, and the coke sample activation furnace is connected with the steam generator. The device provided by the invention is adopted to pyrolyze the domestic waste, the efficiency is high, and emission is concentrated; and the device can further prepare high-quality activated cokeand complete large-scale treatment of the domestic waste.
Owner:HUAZHONG UNIV OF SCI & TECH

Loader static pressure transmission control system

InactiveCN103836181AEasy to operateSmooth and soft shiftingGearing controlIn vehicleTransmission system
The invention discloses a loader static pressure transmission control system which comprises a controller. The controller is respectively connected with a transmission shaft rotation speed sensor, a brake pedal displacement sensor, a direction switch, a display, an operating panel, a diagnosing opening, an accelerator pedal displacement sensor, an engine rotation speed sensor, a travelling pump, a first motor, a second motor and a gearbox. The traveling pump is connected with an engine. One end of the gearbox is connected with a bridge. The other end of the gearbox is connected with the first motor and the second motor. The loader static pressure transmission control system has the advantages that the loader static pressure transmission control system is convenient to operate and control, safe and reliable, stable and soft in vehicle speed change and convenient to mount and maintain, transmission system efficiency can be increased greatly, full-automatic stepless speed change is achieved, reasonable engine power output distribution and utilization by vehicles are achieved, fuel consumption is lowered, energy is saved, multiple vehicle operation parameters can be checked on instruments, multiple misoperation simulating and safety prompting functions are provided by the system, and operation safety is increased.
Owner:龙工(上海)机械制造有限公司

Laser additive manufacturing system and method for polymer wire

The invention belongs to the field of wire additive manufacturing, and discloses a laser additive manufacturing system and method for a polymer wire. The system comprises a lifting table, a wire conveying unit, an extruding unit, a robot and a laser device, wherein the lifting table is a working tabletop for forming a wire; the laser device is used for melting the wire extruded from the extrudingunit; the laser device is arranged outside the extruding unit to separate the melting of the wire from the extruding unit, namely separate wire conveying and melting, so that blockage of a sprayer ofthe extruding unit is avoided; a laser head and the extruding unit are fixed on a working table at the tail end of the robot, so that laser can directly shoot a wire extruding position at any time toensure that the wire is melted under the action of the laser as soon as the wire is extruded; the robot carries the extruding unit and a laser unit to move according to a preset track to realize melting and forming of the wire on a single slice layer; the lifting table goes down to realize forming of all the slice layers, so as to obtain a part to be formed. According to the laser additive manufacturing system disclosed by the invention, the problems of easiness in blockage, difficulty in cleaning, short service life and the like of the sprayer are solved.
Owner:HUAZHONG UNIV OF SCI & TECH

Integrated steam exhaust temperature reduction pressurizer

The invention relates to equipment for steam exhaust processing of a steam system, in particular to an integrated steam exhaust temperature reduction pressurizer particularly suitable for the occasions of steam exhaust recovery of a turbine system, a boiler system and the like. The integrated steam exhaust temperature reduction pressurizer comprises a body, a temperature reduction flow control ring, a pressure spraying nozzle and a mixing pipe. The pressure spraying nozzle is composed of a valve rod, a valve element and a Venturi sleeve tube, the valve element is installed at the tail end of the valve rod and sleeved with the Venturi sleeve tube, the Venturi sleeve tube and the body are welded and fixed, the middle of the valve rod is fixed in the body through a fixing part, a valve cover is installed on the upper portion of the valve rod, and the head of the valve rod is connected with an execution mechanism through a clamping block. The rear portion of the body is connected with the mixing pipe, and the mixing pipe is composed of an inlet flange and a Venturi tail pipe. A steam inlet flange is arranged at the position, near the head of the valve rod, of the fixing part, and a condensate water inlet flange is arranged on the other side of the fixing part. The temperature reduction flow control ring is installed in the part, under the condensate water inlet flange, of the body.
Owner:WUXI VOCATIONAL & TECHN COLLEGE
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