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Engine exhaust gas waste heat recovery and control system and method based on organic rankine cycle
InactiveCN102410054ADoes not affect work performanceReasonable workLiquid coolingPressure lubrication with lubrication pumpOrganic Rankine cycleControl system
The invention discloses an engine exhaust gas waste heat recovery and control system and method based on organic rankine cycle, and belongs to the field of energy conservation and emission reduction. In the invention, a waste heat recovery system comprises engine cycle, organic rankine cycle, cooling water cycle and lubrication oil cycle which are coupled together; by means of reasonable control, the system can be convenient to start, stable to operate and rapid to stop according to the operation of the engine under different working conditions; in case of a system failure, the system can be emergently braked; and under the condition of no influence on the normal operation of the engine, the optimal performances of the system can be obtained finally, and the utilization ratio of the engine exhaust gas waste heat is improved greatly, thus thermal pollution of the engine exhaust gas to the environment is improved.
Owner:BEIJING UNIV OF TECH
Power driving system architecture in hybrid vehicle and control method for power driving system architecture
InactiveCN102358161AImprove economyEnsure driving safetyGas pressure propulsion mountingPlural diverse prime-mover propulsion mountingPower couplingTerra firma
The invention relates to a power driving system architecture in a hybrid vehicle. A battery module in a motor power driving sub system is connected with a first driving motor / generator through a first motor control module; the first driving motor / generator is connected with a power coupling transmission device; an engine control module in an engine power driving sub system is connected with an engine; the generator is connected with the battery module through a second motor control module; and the engine is connected with the power coupling transmission device through the generator. The invention also relates to a method for realizing power driving control in the hybrid vehicle based on the system architecture. By adopting the power driving system architecture in the hybrid vehicle and the control method for the power driving system architecture, the system architecture is more rational, the vehicle has higher power performance, and driving is higher in flexibility and completeness; furthermore, the vehicle saves energy, is environment-friendly and has high safety coefficient; and the power driving system architecture is stable and reliable in working performance and wider in applicability range, and lays a firm foundation for popularization and application of a hybrid technology.
Owner:SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
Oil-electricity hybrid vehicle fuel power generation control device and control method
ActiveCN103332190ASolve the defect of limited battery lifeSolve the technical defect that it is not suitable to install air conditionerHybrid vehiclesAutomatic controlElectric vehicle
The invention related to an oil-electricity hybrid vehicle fuel power generation control device and control method. The control device comprises a signal processing module, a master control module and an output control module, wherein the signal processing module is connected with a signal acquiring source of an engine fuel power generation system, the signal processing module is connected with the master control module, and the master control module is connected with power generation system executing hardware through the output control module. The signal processing module acquires and processes a part of or all working condition signals which are then judged and compared by the master control module, and an instruction is sent to the output control module which then controls the fuel power generation system executing hardware to work according to the instruction sent by the master control module. According to the control device and the control method, automatic control in the whole process is realized, the phenomena of electricity loss and overcharge of a power battery pack are avoided, the service life of the power battery pack is greatly prolonged, and endurance requirements can be met. Meanwhile, three protection systems are set at an accelerator, so that the safe operation of an engine is effectively guaranteed, and technical defects existing in an electric vehicle are effectively overcome.
Owner:河南东啟新能源车业有限公司
Method for taking candid photograph of ship in inland waterway as well as system
ActiveCN109660760ASolve the problem of large and easy to photograph multiple ships at the same timeAccurate captureCo-operative working arrangementsClosed circuit television systemsMarine engineeringFeature data
The invention discloses a method for taking a candid photograph of a ship in an inland waterway as well as a system. Adaptability improvement is performed on an operation way of an existing marine RFID card reader, a directional external narrow beam antenna is adopted for restraining an active area of the RFID card reader, when a target ship pulls in a riverway range covered by the narrow beam antenna, the RFID card reader can timely receive marine RFID electronic tag information at close range and generates a trigger signal, and video capturing equipment is triggered to be linked with a flashing light and perform synchronous candid photograph capture on the target ship, so that the problems that the traditional marine RFID card reader is too large in the active area and a photograph of multiple ships can be easily taken are solved, and accurate and reliable candid photograph capture on a single target ship when multiple ships enter the inland waterway is realized. The method disclosedby the invention fuses various kinds of data, namely basic information of a ship in an AIS, RFID tag information of the ship as well as video data and image data of the target ship, into feature dataof the target ship, so that the feature data of the target ship is more complete, and confidence level is higher.
Owner:CETC NINGBO MARINE ELECTRONICS RES INST
Method and system for coordinated scheduling based on cell priority
ActiveUS20120238283A1Improve performanceOptimize resource allocationSite diversityDistributed allocationTransmission technologyMultiple point
The present invention discloses a method and system for coordinated scheduling based on cell priority, which is applied to the system using coordinated multiple point (CoMP) transmission technology. The method includes: performing priority sequencing on each coordinated cell according to the historical and / or current information of each coordinated cell and finishing scheduling of each coordinated cell in an order according to priority from high to low. By adopting the coordinated scheduling scheme in the present invention, the network can be made in a reasonable working status, and then, the performance of the entire system can be improved.
Owner:XIAN ZHONGXING NEW SOFTWARE
Transport vehicle with flank on-vehicle dual-arm crane
InactiveCN101817322AReasonable workImprove standardizationVehicle with pivoted armsVehicles with cranesVehicle frameIn vehicle
The invention relates to a transport vehicle with a flank on-vehicle dual-arm crane. Two vehicle-mounted front and rear groups of flank-stretched and folded synchronous hydraulic crane arms are arranged on a frame. The transport vehicle with the flank on-vehicle dual-arm crane is characterized in that: a telescopic arm capable of sliding is arranged inside a main arm sleeve; a rotatable assistant arm is arranged at the rotating end of the telescopic arm; a main oil cylinder is connected between the frame and the main arm; a telescopic oil cylinder is connected between the main arm and the telescopic arm; and an assistant oil cylinder is connected between the telescopic arm and the assistant arm. The crane jib can vertically hoist (garbage) containers from a pit. The transport vehicle with the flank on-vehicle dual-arm crane has simple mechanism, large lifting tonnage, and has multiple functions. The hoisting direction of the (garbage) containers can be set on the right side of the transport vehicle, which is convenient for the transport vehicle to run on the right side and stop and load and unload.
Owner:代其新
News transmission system and its news buffering device and method
ActiveCN1859318ASpeed does not directly affectReduce overheadData switching networksComputer scienceBuffer zone
The present invention discloses a message buffer unit used for realizing message buffer between transmitting side and receiving side. It contains message buffer; used for storing transmitting side data transmitted to receiving side; receiving side notifying unit used for message buffer transmitting signal to receiving side after receiving data, and notifying the receiving side to receive the data; buffer space detecting unit used for detecting buffer zone occupied space; transmitting side speed control unit used for according to space occupied status to regulate transmitting side speed. The present invention also discloses message transmission system adopting said message buffer unit and message buffer method.
Owner:HUAWEI TECH CO LTD
Hydrogen (hybrid) power energy generator of gasoline/diesel vehicle and related technology
InactiveCN101633311ANo pollution in the processReasonable workElectrolysis componentsFuel supplyThermal energyElectrolysis
The invention discloses a hydrogen (hybrid) power energy generator of a gasoline / diesel vehicle and the innovation and creation of related technologies, in order to reduce fuel oil consumption and environmental pollution. The system and technology, technical scheme and working principle of the generator are as follows: under the action of the hydrogen generator (oxyhydrogen machine), a small part of the remaining electrical energy (about dozens to one or two hundred watts) of a vehicle generator (generally 12-24V, tens to hundreds of amps) is used for electrolyzing water into hydrogen and oxygen (the flow models are different with a few hundred ml / min or above); and a nozzle arranged near the tail end at which the air is mixed with the oil is introduced into the vehicle generator, thereby not only directly burning oil, but also stimulating original fuel oil to burn, improving a great amount of heat energy, improving a lot of kinetic energy for an engine (about more than 30% of the kinetic energy), generating water without environmental pollution, and simultaneously saving about 30% of the oil. An air inlet controller or a tail gas measuring and controlling device is utilized to regulate the ratio of air and combustion gas so as to control reasonable burning; the ignition time is regulated to ensure reasonable work of a cylinder; and different automatic control systems are assembled to realize automatic control of gas production and gas supply of the whole system.
Owner:葛帅
Carton automatic folding device and carton sticking machine
InactiveCN109514916ASafe and reliable workOperational securityBox making operationsPaper-makingEngineeringFront edge
The invention discloses a carton automatic folding device. The carton automatic folding device is characterized by comprising a left edge folding mechanism, a rear edge folding mechanism, a front edgefolding mechanism and a right edge folding mechanism. The left edge folding mechanism comprises a first support, a first horizontal air cylinder, a first sucker, a first turn-over air cylinder and afirst turn-over pressing plate. The rear edge folding mechanism comprises a second support, a second horizontal air cylinder, a second sucker, a second turn-over air cylinder and a second turn-over pressing plate. The front edge folding mechanism comprises a third support, a third turn-over air cylinder and a third turn-over pressing plate. The right edge folding mechanism comprises a fourth support, a fourth turn-over air cylinder and a fourth turn-over pressing plate. Automatic folding of four edges at the bottom of a carton can be achieved, and production efficiency can be improved. In addition, the invention further discloses a carton sticking machine.
Owner:重庆仨睿包装印务有限公司
High-frequency high-voltage dynamic on-resistance test circuit and measurement method of switching device
ActiveCN111337807AHigh precisionRealize zero voltage and zero current switchingResistance/reactance/impedenceDigital variable/waveform displayCapacitanceVoltage overshoot
The invention provides a high-frequency high-voltage dynamic on-resistance test circuit and a measurement method of a switching device. The circuit comprises a main circuit and a test branch circuit,wherein the main circuit comprises a tested switching tube, a load, a current detection resistor and a power supply; a drain electrode of the tested switching tube is connected with the load in seriesand connected to a positive electrode of the power supply, and a source electrode of the tested switching tube is connected with the current detection resistor in series and connected to a negative electrode of the power supply; the test branch comprises a test switch tube and a test resistor; the drain electrode of the test switch tube is connected in series with the load and is connected to thepositive electrode of the power supply. The voltage of the test end is controlled by controlling the switching of the tested switching tube; when the tested switching tube is conducted, the voltage of the test end is the conduction voltage drop of the tested switching tube; when the tested device is turned off, the voltage of the test end is clamped at a low voltage. The new test method providedby the invention realizes high-voltage effective clamping, effectively reduces the voltage overshoot phenomenon caused by charging and discharging of an output capacitor, introduces a measurement branch of a zero-voltage zero-current switch, effectively improves oscillation and improves test precision.
Owner:润新微电子(大连)有限公司
Energy storage system and energy storage system control method
InactiveCN111244983AImprove protection response speedImprove securitySingle network parallel feeding arrangementsAc network load balancingTransformerControl engineering
The invention discloses an energy storage system and an energy storage system control method, and the energy storage system comprises: a transformer, wherein one end of the transformer is connected with a power grid bus, and the other end of the transformer forms a common connection point; a detection trigger circuit, wherein the detection end of the detection trigger circuit is connected with thecommon connection point, and the detection trigger circuit is used for collecting electric parameters of the common connection point and outputting standby trigger signals when it is determined thatthe energy storage system is overloaded or flows reversely according to the electric parameters; and an energy storage converter, wherein the alternating current side of the energy storage converter is connected with the other end of the transformer, and the energy storage converter is used for sealing wave and waiting for a first preset time when receiving the standby trigger signal. According tothe invention, the protection response speed, safety and reliability of the energy storage system are improved.
Owner:HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
Universal tool for welding passenger car top cover framework
PendingCN110405399AIncrease productivityReasonable workWelding/cutting auxillary devicesAuxillary welding devicesIndustrial engineeringFast switching
The invention discloses a universal tool for welding a passenger car top cover framework. The universal tool comprises a tool bottom frame main body, a pair of linear guide rails, a plurality of guiderail sliding blocks, a plurality of positioning module assemblies, a plurality of positioning clamping blocks and a module positioning unit. According to the welding tool, the positions of the positioning module assemblies are rapidly switched on a sliding guide rail assembly and are fixed, so that the rapid adjustment of positioning modules in the length direction of the car is realized, and positioning of top cover framework of car model of the same series with different lengths; the positioning module assemblies of different shapes can be quickly replaced so that the modular replacement operation of the tool can be realized, the fixation of different series of car model frameworks can be met, the production efficiency can be improved to a certain extent, and reasonable operation is realized; kidney-shaped holes are formed in the positioning module assemblies, so that the size fine adjustment of the positioning modules in the width direction of the car body is realized; and meanwhile, the modular replacement operation of the tool is realized, and welding of different series of car model frameworks is achieved.
Owner:ANHUI ANKAI AUTOMOBILE
Control system for plate drawing part automatic production line
ActiveCN106670292AFully automatedIncrease productivityMetal-working feeding devicesPositioning devicesProduction lineControl system
The invention discloses a control system for a plate drawing part automatic production line, and belongs to the technical field of metal plate processing. The control system takes a plate drawing hydraulic press equipped with a plate drawing mould as a center; a pneumatic sucking disc robot is adopted to adsorb plate raw materials to the plate drawing hydraulic press; after drawing work is completed, a pneumatic clamp robot is adopted to clamp stretching part finished products to a finished product conveyor belt from the plate drawing hydraulic press; and respective parts of the pneumatic sucking disc robot, the plate drawing hydraulic press and the pneumatic clamp robot form three independent passive station modules, and are controlled by a PLC master station module and an industrial controller in a unified mode to form the control system of the whole plate drawing part production line. According to the control system disclosed by the invention, the structure is simple, station configuration and working program are reasonable, automation of feeding, processing and transferring of the plate drawing parts is realized, production efficiency of the plate drawing parts is improved, and production cost and labor intensity are reduced, so that competitive power, in the whole white household appliance market, of enterprises is improved.
Owner:TIANSHUI METALFORMING MACHINE TOOL GROUP
Multifunctional lathe cutting fluid filtration device
PendingCN107639462AVersatileEasy to disassembleMaintainance and safety accessoriesLubricant compositionFiltrationEngineering
The invention relates to a multifunctional lathe cutting fluid filtration device which comprises a cutting fluid collection tank. A left supporting plate and a right supporting plate are fixedly arranged at the upper end of the cutting fluid collection tank, a first vertical support is fixedly disposed on the left supporting plate, and a second vertical support is fixedly disposed on the right supporting plate. A guide cover is disposed between a first limiting frame and a second limiting frame, a cutting fluid coarse filter screen is disposed between a third positioning bump and a sixth positioning bump, a cutting fluid refined filter screen is disposed between a second positioning bump and a fifth positioning bump, and a floating oil filter screen is disposed between a first positioningbump and a fourth positioning bump. The upper end of the rear end face of the cutting fluid collection tank is provided with a floating oil outlet, a water pump is detachably disposed on a water pumpsupport, and a liquid outlet of the water pump is in threaded connection with a cutting fluid conveying pipe. According to the technical scheme, the multifunctional lathe cutting fluid filtration device is reasonable in structural design, simple in structure and low in manufacturing cost, the filter screens are convenient to dismantle, and the multifunctional lathe cutting fluid filtration devicefacilitates clearing of cuttings and is convenient to use.
Owner:平湖智铂自动化设备股份有限公司
Physiological sample storage device with high multiple-protection effect
The invention provides a physiological sample storage device with a high multiple-protection effect. The physiological sample storage device comprises a storage box, a sealing door, an observation window, a door handle, a supporting edge, moving wheels, a brake pad, a cold fan, a gas conveying pipeline, an activated carbon filter screen, a temperature and humidity sensor, a PLC, a display screen,switches, an assembling plate, a fluorescent lamp, an ultraviolet lamp, an atomizer, a rotary observation frame structure, a reinforcing protection frame structure, an adjustment movable seat structure and a protection side plate structure; the sealing door is mounted on the right side of the front surface of the storage box through hinges; the observation window is inlaid in the middle of the interior of the sealing door; and the door handle is welded to the middle part of the right side of the rear wall of the sealing door. The physiological sample storage device has the advantages that dueto the arrangement of the rotary observation frame structure, when a sample utensil is placed, the sample utensil can be placed close to a corresponding placing plate, and meanwhile, the sample utensil is in an inclined shape, so that a worker can conveniently check the condition of the sample utensil.
Owner:QILU INST OF TECH
Energy storage power station and capacity increasing method thereof
PendingCN110266081AEnsure safetySolve technical problems that are difficult to increase capacityElectrical storage systemCharge equalisation circuitBattery storage power stationPower station
The embodiment of the invention discloses an energy storage power station and a capacity increasing method thereof. The energy storage power station comprises a plurality of capacity fixing modules and at least one capacity increasing module connected in parallel with the capacity fixing modules. Each capacity increasing module includes a capacity increasing battery pack and a capacity increasing battery pack protection unit. Each capacity fixing module includes a capacity fixing battery pack and a capacity fixing battery pack protection unit. The rated working voltage U1 of each capacity increasing battery pack protection unit is equal to the rated working voltage U2 of each capacity fixing battery pack protection unit. The rated working current I1 of each capacity increasing battery pack protection unit is equal to U1 / R1, wherein R1 is the resistance value of each capacity fixing battery pack. According to the technical scheme, by reasonably setting the rated working voltage and the rated working current of the capacity increasing battery pack protection units, the capacity of the energy storage power station can be increased, and the safety of the energy storage power station can be guaranteed. The energy storage power station capacity increasing scheme is feasible.
Owner:SHANGHAI ELECTRIC POWER DESIGN INST
Fixed clip seat for temporarily installing hose
InactiveCN106286989AReasonable structural designEasy to usePipe supportsEngineeringMechanical engineering
Owner:蓝灿玉
Federal machine learning migration method and system implemented for intelligent mobile terminal
ActiveCN112884164ALow costScale upCharacter and pattern recognitionMachine learningComputer architectureMobile device
The system comprises a plurality of devices (1) distributed at different addresses, and an intelligent mobile terminal (2). Each device (1) comprises a data cleaning module (3), a data sensing module (6) and a data reading module (11); a data training fusion sub-module (4) is provided, wherein the data training fusion sub-module (4) is arranged on a part of the devices (1); a data training combination module (5) is provided, wherein the data training combination module (5) is arranged on the intelligent mobile terminal (2); all the devices (1) comprise single-machine storage modules (7), local data storage modules (8) are arranged on the devices (1) provided with the data training fusion sub-modules (4), and global data storage modules (9) are arranged on the devices (1) provided with the data training combination modules (5). According to the invention, a standardized interface mode is adopted for the data communication connection of the equipment and the mobile equipment, so that the operation module can be simultaneously connected with a plurality of systems needing federated machine learning, the data training cost is lower, and the portability of the system is improved.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)
Big-seedling container cultivation method for macadamia nuts
ActiveCN110313341AEasy to operateHigh transplant survival rateSeed and root treatmentGraftingRootstockSeedling
The invention discloses a big-seedling container cultivation method for macadamia nuts, and belongs to the technical field of macadamia nut planting. The method includes the following steps of (1) seed selection, (2) seed pretreatment, (3) sowing, (4) rootstock seedling cultivation, (5) grafting, (6) grafted seedling management and (7) big seedling management; the survival rate of transplanting isup to 95%. Through a rootstock seedling combination cultivation method, field rootstock seedlings are grafted 3-4 months earlier than those in a traditional breeding method, staggered emergence is achieved in four batches, the production efficiency is improved, and the market demand is met. The big-seedling container cultivation method for the macadamia nuts is simple to operate and easy to master, seedlings are orderly, the survival rate is high, flowering and fruiting can be advanced by 1-2 years, the planting cycle is shortened, the management is convenient, and the cost is saved.
Owner:SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI
Efficient energy-saving dual-stage screw air compressor control system
PendingCN107842503AReasonable workImprove work efficiencyRotary/oscillating piston combinations for elastic fluidsRotary/oscillating piston pump componentsFrequency changerControl system
The invention relates to the technical field of screw air compressor energy saving, in particular to an efficient energy-saving dual-stage screw air compressor control system. The efficient energy-saving dual-stage screw air compressor control system comprises a frequency changer, air compressor main machines, a motor, two temperature sensors, two pressure control devices, a controller, an oil-gasseparator and a heat exchanger; a first-stage main machine exhaust port temperature sensor is used for protecting an oil way system and the running condition of the first-stage main machine, a second-stage main machine exhaust port temperature sensor is used for protecting the whole temperature and running condition of the system, a first-stage main machine exhaust port pressure control device isused for controlling the middle pressure between the two stages of main machines, the main machine system is maintained at the best efficiency point, a second-stage main machine exhaust port pressurecontrol device is used for controlling the exhaust pressure of the system, the rotating speed of the frequency changer is controlled, and the appropriate gas yield is adjusted. The efficient energy-saving dual-stage screw air compressor control system has the beneficial effects that the problem about the temperature of two stages of compressors is solved, and the energy-saving efficiency of the two stages of compressors is improved.
Owner:NINGBO MOBO COMPRESSOR
Data summarization method and device, computer equipment and storage medium
InactiveCN110032587AImprove data acquisition efficiencyAvoid loss of incomeDatabase management systemsSpecial data processing applicationsProgram planningData acquisition
The invention discloses a data summarization method and device, computer equipment and a storage medium, which are used for summarizing data from backgrounds of a plurality of game platforms, each background is configured with a data interface, and the data summarization method comprises the following steps of: butting with the data interfaces of each background to carry out data acquisition; configuring a plan task to enable data acquisition to be carried out according to a preset time interval; and forming a report form according to the collected data, so that the background data of each game platform are automatically summarized, the efficiency of obtaining the data from the background of the current network by an operator can be improved, the operator can conveniently grasp the trend of the operation data of the whole platform in real time and find out problems in time, and the reasonable adjustment and arrangement work is facilitated.
Owner:上海圣剑网络科技股份有限公司
A fresh-air air purifying and photovoltaic power generation integrated system
InactiveCN106322506AImprove purification efficiencyLess consumablesMechanical apparatusSpace heating and ventilation safety systemsFresh airComposite filter
The invention provides a fresh-air air purifying and photovoltaic power generation integrated system. The system comprises an air purifying module, an intelligent control module, and a photovoltaic power generation integrated cabinet module. The air purifying system comprises an electrostatic dust collection module, a highly-efficient composite filter module and a ventilation module; the three parts are effectively connected to form a whole which is intelligently controlled by the intelligent control module. The power needed by the whole system is provided by a photovoltaic integrated cabinet power generation system, so that energy can be furthest saved. The household air purifying system is high in purifying efficiency, is practical and beautiful and is small in size.
Owner:SHANDONG YAOTONG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
Method for positioning heat source through infrared signals and air conditioner wind direction control method
ActiveCN106482287AReasonable workSpace heating and ventilation safety systemsLighting and heating apparatusAir conditioningBody surface
The invention provides a method for positioning a heat source through infrared signals, and relates to the technical field of positioning measurement. The method comprises the following steps that two sets of infrared sensing signals collected at each position in the same area are received; the two sets of infrared sensing signals are analyzed and converted into digital voltage signals; the difference of the values of the digital voltage signals obtained after the infrared sensing signals collected at the same position are analyzed is calculated, and a voltage difference value is obtained; and if the voltage difference value is within a preset threshold valve range, the position of the heat source relative to a detection point is determined according to the two sets of voltage difference values, and if the voltage difference value is not in the preset threshold valve range, it is judged that no heat source is detected. The invention further provides an air conditioner wind direction control method. The problem that the wind swing direction of an air conditioner adjuster cannot be adjusted according to the practical user position, the practical user number and the user body surface temperature in the environment when an air conditioner in the prior art is adopted is solved.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
Single-phase current-type high-frequency chain matrix power electronic transformer topology and modulation method thereof
ActiveCN110212781AModulation method is simpleRealize safe commutationAc-ac conversionSingle phaseControl mode
The invention discloses a single-phase current-type high-frequency chain matrix power electronic transformer topology and a modulation method thereof. The topology comprises a power network, a front-stage matrix converter, a high-frequency transformer, a post-stage matrix converter, an output filter and a load which are sequentially connected. The high-frequency transformer is used for magnetic coupling and power transferring, and the conversion of an output voltage and a frequency is achieved by the current-type circuit topology. In order that a bidirectional switch of the matrix converter reasonably works, a decoupling modulation strategy of which integral monopole frequency multiplication of the transformer front-stage circuit and the post-stage circuit are discretely combined is proposed; the front stage employs an integral control mode to achieve safety conversion of the matrix converter, and a voltage peak generated by leakage inductance of the transformer is effectively prevented; and the post stage employs a discrete control mode to reduce the switch action frequency, the switch loss of the device is reduced, the system efficiency is improved, and detail mode analysis is performed on a modulation principle and a working condition of a main circuit.
Owner:YANSHAN UNIV
Single-port mobile power control circuit and control method thereof
InactiveCN105896662AExtended service lifeReduce power consumptionElectric powerExchanging data chargerInput controlComputer module
The invention discloses a single-port mobile power control circuit and a control method thereof. The circuit comprises a connection port for connecting external equipment, an equipment access detection module, a controller, a voltage detection module, an output control module, an output module, an input control module and an input module; the equipment access detection module is connected between the first input end of the controller and the connection port, and the voltage detection module is connected between the second input end of the controller and a VBUS line and used for detecting voltage on the VBUS line; the first output end of the controller is connected with the input end of the output control module, and the output end of the output control module is connected to the connection port via the output module and the VBUS line in sequence and supplies power to the external equipment via the connection port; the second output end of the controller is connected with the input end of the input control module, the VBUS line is connected with the input end of the input control module via the input module, and the external equipment is charged via the VBUS line.
Owner:深圳市高拓新能科技有限公司
Emergency starting power supply with functions of automatically and synchronously recognizing high-and-low voltage of battery, warning and realizing switch-off protection
InactiveCN105870987AExternal loss zeroReasonable workCircuit monitoring/indicationDifferent batteries chargingLower limitLow voltage
The invention discloses an emergency starting power supply with functions of automatically and synchronously recognizing high-and-low voltage of a battery, warning and realizing switch-off protection. According to the emergency starting power supply, an input module is connected with an emergency starting power supply module and an information collection module separately; the emergency starting power supply module is also connected with the information collection module and an output module separately; the information collection module is also connected with the output module and a CPU processing module separately; the CPU processing module is also connected with a working power supply module, a synchronous switch module and an acousto-optic warning module separately; and the synchronous switch module is also connected with the working power supply module and the emergency starting power supply module separately. When the battery of the machine is over-discharged or over-charged, the system warns automatically; after the warning is sent out, if a user does not stop the operation, and the lower limit of discharging or the upper limit of charging of the battery is achieved, the system automatically and forcefully switches off all input and output functions; and meanwhile, the message is transmitted to the user in different acousto-optic ways.
Owner:SHANGHAI POWER STATION
High-strength flexible hubbed flange structure
The invention provides a high-strength flexible hubbed flange structure, comprising a convex-platform-shaped flange body, wherein a convex part of a convex platform is provided with through holes which are parallel to the axis of the convex part; a flange plate at the bottom of the convex part is provided with a bolt hole which is parallel to the axis; the distance a from the central line of the bolt hole to the edge of the flange body is not less than 1.1 times as much as the diameter of a bolt; and hole diameters of the through holes are different. According to the high-strength flexible hubbed flange structure, the stress of the flange neck part of the flange and the bolt is more reasonable, the thickness of the flange plate is relatively thinned and the steel utilization amount is saved.
Owner:CHINA ELECTRIC POWER RES INST +1
On-line monitoring control system and method for automatic switching of evaporators of double ice making system
ActiveCN112923618AReasonable workExtended service lifeIce productionCompression machines with several evaporatorsControl systemControl engineering
The invention discloses an on-line monitoring control system and method for automatic switching of evaporators of a double ice making system, and aims to solve the problems that an existing double ice making system cannot obtain a switching value by combining current operation duration of evaporators, a preset model value and a total ice making value. According to the on-line monitoring control system, the evaporators are intelligently switched according to a switching value, and on-line monitoring is better facilitated. The system is applied to an ice maker and comprises a data acquisition module, a data analysis module and a switching control module, wherein the data acquisition module is used for acquiring equipment information of the two evaporators and sending the equipment information to a data storage module for storage; the data analysis module is used for acquiring the equipment information stored in the data storage module and conducting analysis; the switching control module intelligently controls the switching work of the evaporators according to the switching value, so that the evaporators are reasonably controlled to work, and the service life of the evaporators is prolonged; and the font size of on-line monitoring display is adjusted according to a deviation mean value, and the font size is reasonably adjusted according to the distance from a user for display, so that the user can check the display more conveniently.
Owner:SHENZHEN BROTHER ICE SYST
Intelligent public washroom disinfection, sterilization and purification system
PendingCN113513798AAvoid embarrassmentWork effectivelyMechanical apparatusSpace heating and ventilation safety systemsAir cleaningMobile phone
The invention belongs to the technical field of purification devices, and particularly relates to an intelligent public washroom disinfection, sterilization and purification system. The intelligent public washroom disinfection, sterilization and purification system comprises an air treatment system, a detection system and a control system; the air treatment system comprises an air cleaning treatment system and an air temperature and humidity control system; the detection system comprises an exhaust gas detection device, a washroom internal gas detection device, a temperature and humidity detection device and a people flow monitoring device; and the control device system comprises a controller, a cloud server, a control panel and a mobile phone APP. According to the intelligent public washroom disinfection, sterilization and purification system, the purification quality of internal gas and exhaust gas of the washroom, the air temperature and humidity and the people flow rate in the washroom can be effectively monitored; and the practical problem that the surrounding environment and the body health of people using the washroom are affected due to spreading and overflowing of germs and peculiar smells in the washroom in a service area can be effectively solved.
Owner:山东高速建筑设计有限公司 +3
Belt conveying type cleaning device
The invention relates to a belt conveying type cleaning device. The device is arranged above a belt (1) and comprises a dust collector (2), an air heater (3), a spraying device (4) and a cleaning device body (5) which are sequentially arranged in a front-back manner. All components are combined in an optimization manner, all functions of the components are exerted, and the aim of thoroughly cleaning a conveyor is achieved. Through the intelligent control of a control box, work of all components is more intelligent and reasonable.
Owner:江苏环宇起重运输机械有限责任公司
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