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Internal memory managing method and device of embedded system
InactiveCN101221536ASpeed up tidying upNo effect on operationMemory adressing/allocation/relocationInternal memoryEmbedded system
The invention discloses a memory management method and a device for an embedded type system. The method of the invention comprises the following steps: firstly, a memory is divided into a plurality of large memory zones with unequal memory capacities; secondly, when an application program begins to run, a large memory zone which is matched with a maximum memory requirement value of the application program is allocated for the application program; thirdly, a small memory is allocated for the application program in the matched large memory zone by utilization of heap means; fourthly, when the small memory is released by the application program by utilization of heap means, the small memory is combined with adjacent and free small memories; when the application program stops running, the matched large memory zone is released. The invention avoids a large amount of memory fragmentations, quickens speed of memory fragmentation defrag and avoids the necessity in a memory pool means of calculation of the size and number of each memory which needs for dynamic allocation of each application program.
Owner:ZTE CORP
Implementing method of memory database on household gateway
InactiveCN101329685AFast accessEnsure data securitySpecial data processing applicationsData synchronizationIn-memory database
The invention discloses a realization method of a memory database on a home gateway. The method of the invention comprises the steps: 1. the storage structure and queue of data sheets and records in the memory database are initialized; 2. on the basis of the establishment of the storage structure of the memory database, the business data in a business database are uploaded to the memory database on the home gateway, while before the business data are uploaded, the business data are filtered; 3. data synchronization: when the data in business database are changed, the given data in the memory database are backed up; data synchronization is carried out by adopting a synchronous module, and if the synchronization succeeds, the backup data are cleared; 4. data access: a unified access interface of the memory database is provided for inquiring, adding, deleting and modifying, etc. Compared with the realization method of the existing memory database, the realization method of the invention requires few resources, has high data storage efficiency and is especially suitable for the business application that is based on a home gateway and has high requirement for data real time.
Owner:FENGHUO COMM SCI & TECH CO LTD
Technique method for processing desulphurization waste water
ActiveCN101417827ALow costReduce energy consumptionWater/sewage treatmentEnergy based wastewater treatmentSalt contentFlue gas
The invention discloses a technology method for treating desulfurization wastewater, which are applicable to treating the wastewater generated from limestone-plaster wet flue gas desulfurization and other wastewater with high salt content. The method uses the flue gas of heat-engine plants to carry out evaporation and solidification treatment to the desulfurization wastewater or other wastewater with high slat content which is hard to be recovered. The method is characterized by low cost, little area occupation and low energy consumption, which can provide help to the original limestone-plaster wet flue gas desulfurization treatment technology and realize zero discharge of the wastewater of the limestone-plaster wet flue gas desulfurization technology.
Owner:CHENGDU RAISE ENVIRONMENTAL PROTECTION TECH CO LTD
Method and system for processing desulphurization waste water
ActiveCN101417826AReduce process water consumptionReduce energy consumptionWater/sewage treatmentEnergy based wastewater treatmentFlue gasWastewater
The invention discloses a method and a system for treating desulfurization wastewater, which are applied to treating the wastewater generated from limestone-plaster wet flue gas desulfurization and other wastewater with high salt content. The system comprises a drying tower, a circular spray system, a flue gas stirring device and a filter press. The method comprises the steps: in the drying tower, hot flue gas and desulfurization wastewater exchange heat through convection contact so as to lead the wastewater to evaporate and concentrate to generate crystal; the filter press is adopted to carry out solid-liquid separation; and mother liquor continually refluxes and is treated. The method and the system have the advantages of low cost, little area occupation and low energy consumption, which can realize zero discharge of the wastewater of the limestone-plaster wet flue gas desulfurization technology and improve contribution.
Owner:CHENGDU RAISE ENVIRONMENTAL PROTECTION TECH CO LTD
Cloud platform resource self-adaptive early warning method and system
ActiveCN103873498AIncreased consumptionOperation impactData switching networksSoftware simulation/interpretation/emulationManagement unitResource consumption
The embodiments of the invention disclose a cloud platform resource self-adaptive early warning method and system. The method comprises: a node management unit, according to a first preset period, acquiring various resource consumption data of a physical machine and each virtual machine and reporting to a resource analysis early warning server; the resource analysis early warning server, according to a second preset period, analyzing the various resource consumption data and predicting the various resource consumption data of the physical machine and each virtual machine at each acquisition point in the future; monitoring the operation load of the physical machine in real time, and if the operation load exceeds an early warning threshold, acquiring the various resource consumption data of each virtual machine at current time and analyzing whether a change rate is greater than one compared to previously predicted various resource consumption data; if the change rate is greater than one, repredicting the various resource consumption data of each acquisition point in the future; and when predicted various resource consumption data exceeds a preset alarm threshold, carrying out event notification. According to the embodiments of the invention, the various resource consumption data of the virtual machines in the future can be predicted and analyzed, thus support is provided for regular adjustment of resource distribution.
Owner:CHINA TELECOM CORP LTD
Automobile-mounted noise generating set
ActiveCN103501041AAchieve recyclingHigh feasibilityBatteries circuit arrangementsElectric powerElectricityPower flow
The invention provides an automobile-mounted noise generating set. The automobile-mounted noise generating set comprises an automobile-mounted noise collecting unit, a sound-electricity conversion unit and an electric energy storing unit, wherein different arrangement ways and collecting devices are adopted according to the noise and structural characteristics of different positions of the automobile. The main structure of the set comprises a noise collector and a sound wave conduit in the automobile noise collecting unit, a sound pressure amplifier and a sound-electricity converter in the sound-electricity conversion unit, and a current conditioning circuit, an electric energy storage and an automobile-mounted storage battery in the electric energy storing unit. According to the automobile-mounted noise generating set, the aim of converting the noise energy of the automobile into usable electric energy is fulfilled on the premise of not influencing the normal running performance of the automobile, and waste energy is recycled. The automobile-mounted noise generating set further has the advantages of high power generation efficiency, simple structure, convenience in installing, high practicability, small occupied size, high reliability and the like.
Owner:WUHAN UNIV OF TECH
Fireman individual-soldier system on basis of wireless Mesh network framework
InactiveCN102104991AReduce volumeReduce stepsNetwork topologiesWireless mesh networkVital sign detection
The invention relates to a fireman individual-soldier system on the basis of a wireless Mesh network framework. The system consists of a wireless monitoring mainframe, a plurality of wireless individual-soldier sub-machines and a plurality of wireless repeaters, wherein the wireless monitoring mainframe consists of a monitoring module and a wireless center node module; and each wireless individual-soldier sub-machine consists of a central processing unit module, a positioning module, a vital sign detection module, a distress call module, an environment condition detection module, a carried equipment detection module and a wireless terminal node module. When the fireman individual-soldier system is applied particularly, firemen wear the wireless individual-soldier sub-machines to enter a fire site or other accident sites and a chief officer monitors information such as postures, motion tracks, vital signs, environment conditions, carried equipment conditions and the like through the wireless monitoring mainframe, so that the intelligence support of a command decision is provided for the chief officer in time and a scientific basis can also be provided for daily tactical training. By the fireman individual-soldier system, the modernization, automation and intellectualization levels of a fire command are improved and the battle damage rate of the firemen can also be effectively reduced.
Owner:SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY
Inventory data account checking method and inventory data account checking device
ActiveCN106447246AOperation impactAvoid phenomena such as oversellingLogisticsCommerceDatabaseInventory data
The invention discloses an inventory data account checking method and an inventory data account checking device. An inventory server is used to receive first accounting information fed back by a platform party business server by a preset data storage engine, and the first accounting information comprises first inventory flow record and first inventory snapshot. Second accounting information is extracted from a warehouse server provided by a warehouse party, and comprises second inventory flow and second inventory snapshot. The second accounting information is parsed, and is uploaded to the data storage engine. In the data storage engine, the first accounting information and the second accounting information are compared with each other in a specific account checking period, and difference information between the first accounting information and the second accounting information is determined. The difference information is provided. According to the invention, influences on the concrete business operation of the platform party are prevented.
Owner:CAINIAO SMART LOGISTICS HLDG LTD
Fault diagnosis method with fault-tolerant control of switch reluctance motor position sensors
ActiveCN103439655AGood speedGood dynamic performanceDynamo-electric machine testingElectronic commutatorsDiagnosis methodsPosition sensor
The invention discloses a fault diagnosis method with fault-tolerant control of switch reluctance motor position sensors. The fault diagnosis method includes diagnosis and fault-tolerant control on faults of several position sensors and diagnosis and control over fault recovery of the several position sensors. The fault diagnosis method can timely diagnose faults of a position sensor of each phase, switch control algorithms and enable operation states of a switch reluctance motor to be free from influences of the faults of the position sensors, and namely normal operation can continue to remain when the faults of the position sensors happen; when the position sensors recover, whether signals are normal is judged first, if the signals are normal, diagnosis faults recover, original algorithms are switched back, therefore, fault-tolerant capacity of the switch reluctance motor is effectively improved, and great significances are achieved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Method and system for processing desulphurization waste water
ActiveCN101417828AReduce water consumptionImprove desulfurization process efficiencyWater/sewage treatmentEnergy based wastewater treatmentSuspended particlesFlue gas
The invention discloses a method and a system for treating desulfurization wastewater, which are applicable to treating the wastewater generated from limestone-plaster wet flue gas desulfurization and other wastewater with high salt content. The system comprises a spray drier, a flue gas transport pipeline, a dust catcher, a smoke exhaust fan, a waste ash outlet and the like. The method comprises the steps: in the spray drier, hot flue gas and the desulfurization wastewater exchange heat through convection contact, so as to change the wastewater to particles and wet flue gas, discharge the settled particles and remove the wet flue gas and the suspended particles through the dust catcher. The method and the system have the advantages of low cost, little area occupation and low energy consumption, which can realize zero discharge of the wastewater of the limestone-plaster wet flue gas desulfurization technology and improve contribution.
Owner:CHENGDU RAISE ENVIRONMENTAL PROTECTION TECH CO LTD
Data acquisition and emulation system suitable for underlying protocol stack of digital communication terminal
ActiveCN101770424AOperation impactImprove read and write speedSoftware testing/debuggingData acquisitionAddress bus
The invention relates to a data acquisition and emulation system suitable for an underlying protocol stack of a digital communication terminal. The system comprises a digital signal processor (DSP), a data acquisition system, and a computer emulation system, wherein the data acquisition system comprises a field-programmable gate array (FPGA), a universal serial bus (USB) interface chip, and a memory corresponding to the FPGA and the USB interface chip; the computer emulation system comprises a computer, and a data receiving program module and a system emulation program module operated on the computer; the DSP is connected to the FPGA through an address bus, a data bus, a chip selection, and a write enable respectively; and the acquisition output end of the FPGA is connected to the data input end of the USB interface chip; and the USB interface chip is connected to the computer through a USB bus. The data acquisition and emulation system has the advantages that: the acquired data and the data input by the underlying protocol stack can be ensured to be completely consistent by directly connecting the data acquisition system with the DSP high-speed data bus; the data bus has high read and write rate and low time consumption, so that the operation of the underlying protocol stack cannot be affected; the system is suitable for the development and debugging of the underlying protocol stack so as to track and find out problems and search program defects.
Owner:TIANJIN 712 COMM & BROADCASTING CO LTD
Travelling time difference based power distribution network fault positioning method and apparatus
ActiveCN1553208ASimple structureLow costFault locationInformation technology support systemPotential transformerPhase angle
In the method, feed-through line transducer is socket-connected on earth line of any capacity equipment in electric station of electric net or parlle-connected voltage division line transducer on inductor to obtain electric net abrupt signal, occuring accurate time of each abrupt signal is recorded and arrival time of abrupt signal recorded by station is collected by computer, accurate position of fault point and actual length of nonfault line is calculated by positioning computer, bus three phase voltage waveform is converted to be square wave sent to presetmodule by waveform conversion module for carrying on phase angle measurement of electric net.
Owner:湖南湘能电气自动化有限公司
Enteric microorganism-based health risk prediction system
PendingCN107506582AManagement scienceStandardized managementSequence analysisSpecial data processing applicationsInformatizationHuman body
Owner:周礼红
Combustion technology of low nitrogen oxide
InactiveCN1757966AReduce smoke temperature deviationAvoid slagging corrosion problemsCombustion using gaseous and pulverulent fuelCombustion chambersCombustorLow nitrogen
A low-Nox combustion technology features that the combustion box is divided into primary combustion region, reduction region and burning off region from bottom to top. In the primary combustion region, the multi-layer horizontal coal powder combustion technique is used. In the reduction region the under-oxygen reduction technique is used. The burn0off air is fed into the burning off region. The jet direction of the secondary wind among each two burner layers is deflected clockwise by 10-15 deg. relative to the jet direction of primary wind and coal powder stream. The excessive coefficient of air in reduction region is 1.0. The horizontal direction of burn-off windjet is deflected anticlockwise by 5-10 deg. relative to the jet direction of primary wind. Its advantages are stable and uniform combustion, and low release of Nox.
Owner:DONGDIAN BURNING APP LIAONING +1
Concentration crystallization zero-emission system for wastewater in thermal power plant
PendingCN108328683AReduce energy consumptionLow costWater contaminantsWater/sewage treatmentAir preheaterFlue gas
The invention belongs to the technical field of wastewater treatment in a thermal power plant and particularly relates to a concentration crystallization zero-emission system for wastewater in the thermal power plant. The system includes a denitrating apparatus, a main dust remover and a desulfurizing column. An air preheater is arranged on a flue between the denitrating apparatus and the main dust remover. A draft fan is arranged on a flue between the main dust remover and the desulfurizing column. The system also includes a desulfurizing wastewater spray-concentrating apparatus, which performs spray-concentration to the desulfurizing wastewater by means of heat in low-temperature flue gas in the flue between the main dust remover and the desulfurizing column, and a concentrated wastewater spray-crystallization apparatus, which performs spray-crystallization to the concentrated wastewater by means of heat in high-temperature flue gas in the flue between the denitrating apparatus and the air preheater. The system is free of consumption of extra heat during the concentration crystallization process, so that operation energy consumption is greatly reduced, and zero-emission of wastewater in thermal power plant is achieved.
Owner:四川苏源环保工程有限公司
Inside and outside reinforced structural type configuration-changeable obstacle crossing robot
InactiveCN103231748AGuaranteed StrengthImprove stabilityEndless track vehiclesDrive wheelStructural type
The invention aims at providing an inside and outside reinforced structural type configuration-changeable obstacle crossing robot which comprises a car body, main arms and auxiliary arms. Main arm caterpillar band support frames are installed on two sides of the car body, power-driven wheels, main arm wheels and driven wheels are sequentially installed on the main arm caterpillar band support frames from front to back, the main arms are installed on the main arm caterpillar band support frames, one end of each main arm is connected with the main arm wheels, and a planet wheel is installed at the other end of each main arm. A first auxiliary wheel and a second auxiliary wheel are respectively installed at two ends of each auxiliary arm, the second auxiliary wheels are coaxial with the driven wheels, main arm caterpillar bands are installed the main arm caterpillar band support frames through the planet wheels, the power-driven wheels, the main arm wheels and the driven wheel, and auxiliary arm caterpillar bands are installed on the auxiliary arms through the first auxiliary wheels and the second auxiliary wheels. The inside and outside reinforced structural type configuration-changeable obstacle crossing robot adopts a composite main arm structure, inner and outer arms reinforced design is adopted by the main arms, the strength of the main arms in the movement process is ensured, and accordingly the stationarity of the car body in obstacle crossing is improved.
Owner:HARBIN ENG UNIV
Intelligent control method for fresh air handling unit and fresh air handling unit applying method
ActiveCN106196505AGuarantee the quality of air environmentImprove comfortSpace heating and ventilation safety systemsLighting and heating apparatusOutdoor temperatureBackground noise
The invention discloses an intelligent control method for a fresh air handling unit. The control method comprises the following steps: (1) monitoring indoor and outdoor temperature values, an indoor CO2 concentration value and a PM2.5 concentration value in real time; and (2) firstly, adjusting the openness of a fresh air valve according to the monitored indoor and outdoor temperature values and an indoor temperature priority algorithm, and when the outdoor temperature or indoor temperature is in a preset range, calculating and executing the openness of the fresh air valve according to the monitored CO2 concentration value, the PM2.5 concentration value and an air quality balance algorithm. The invention further provides the fresh air handling unit applying the control method. By the adoption of the indoor temperature priority algorithm and the air quality balance algorithm, the indoor temperature can be guaranteed preferentially under any working condition, and then the indoor PM2.5 concentration and the indoor CO2 concentration are effectively controlled, so that the environmental quality of air in a classroom is guaranteed, and the comfortable sensation of a student to a learning environment is enhanced; and the operation duration of the fresh air handling unit is preset according to a class period and background noise in the classroom, so that no influence on the class teaching is caused during the operation of the fresh air handling unit, and a good learning environment is supplied to the student.
Owner:北京同衡能源环境科学研究院有限公司
Debugging method and system for programmable logic device
InactiveCN105787164ARich configuration of trigger conditionsEasy to useCAD circuit designSpecial data processing applicationsClient-sideProgrammable logic device
The invention provides a debugging method and system for a programmable logic device.The method comprises the steps that a client side sets working parameters of an enhanced type logic analyzer core, and compiles the working parameters and design to be detected to comprehensively generate a bitstream file to be sent to a service side; the service side downloads the bitstream file to the programmable logic device; the programmable logic device executes the design to be tested, and the enhanced type logic analyzer core collects and stores data according to the working parameters and sends the data to the service side.The service side stores and processes the data and then sends the data to the client side.By means of the debugging method and system, enhanced type logic analyzer core is embedded into the programmable logic device, data sampling output is carried out on the design to be tested through the enhanced type logic analyzer core, no external logic analyzer or oscilloscope needs to be adopted in the process, testing points do not need to be planned on a circuit board, and pin resources are not occupied.
Owner:SHENZHEN PANGO MICROSYST CO LTD
Feedwater replacement type economizer system for whole commissioning of denitration device
The invention provides a feedwater replacement type economizer system for whole commissioning of a denitration device. The feedwater replacement type economizer system is characterized in that the feedwater replacement type economizer system comprises a first bypass, a second bypass and a third bypass, the first bypass and the second bypass are arranged between a downcomer and a feedwater pipeline, the first bypass is provided with a vessel pot, a stop valve, a circulating pump, a flow control valve, a stop valve and a check valve in sequence from the downcomer to the feedwater pipeline, the second bypass is provided with a stop valve, a flow control valve and a check valve in sequence from the feedwater pipeline to the downcomer, one end of the third bypass is in the position between the flow control valve and the stop valve of the first bypass, the other end of the third bypass is connected with the downcomer, the third bypass is provided with a stop valve, and a flow control valve is arranged between the first bypass and the second bypass in the feedwater pipeline. By means of the feedwater replacement type economizer system, economy of a boiler is not sacrificed under heavy load, the smoke temperature of an inlet of the denitration device can be increased under low load, and the feedwater replacement type economizer system is suitable for boilers with the smoke temperature of the denitration device inlet under low load reaching 40 DEG C.
Owner:SHANGHAI POWER EQUIP RES INST +1
Processing method and device for conducting quality assurance on mass shared medical images
ActiveCN107292117AIntegrity guaranteedGuaranteed correctnessSpecial data processing applicationsImage integrityQuality assurance
The invention relates to a processing method and device for conducting quality assurance on mass shared medical images. The device has the function of according with DICOM standard communication, further comprises an image index information quality verification module and an image control module, can define image index information verification values and image number thresholds by itself, can conduct image integrity verification, can obtain patient verification information from a hospital information system or region information system, conducts automatic and manual verification on the provided verification information, updates DICOM label values corresponding to the images after the verification is completed, can further control whether to send the thresholds to other information systems or not according to the image number threshold definition, and accordingly guarantees the uniformity, integrity and correctness of the patient check information on the images and other information systems. The processing method and device can be applied to a sharing platform of a hospital and a region, solve the problems that the patient information of the hospital information system or region sharing collaboration platform is inconsistent with that of an image information system, and provides quality assurance for sharing of the mass medical images.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
DVR (Dynamic Voltage Restorers)-based low-voltage ride through support device of wind generating set
InactiveCN102447266AAvoid distortionExtended service lifeSingle network parallel feeding arrangementsReactive power adjustment/elimination/compensationVIT signalsPower inverter
The invention relates to a DVR (Dynamic Voltage Restorers)-based low-voltage ride through support device of a wind generating set, consisting of a DVR, an active power release circuit, a network-side reactive current injection inverter and a controller, wherein the DVR is provided with a port A, a port B and a port C, wherein the port A is connected with the output end of the wind generating set, the port B is connected with a grid, a filter input side of the DVR is connected to a main loop in a serial connection mode, an output side of an H bridge inverter is the port C, and a direct-current capacitor is arranged in the port C; the reactive current injection inverter is provided with a port AC and a port DC, wherein the port AC is connected with the port B of the DVR, and a direct-current bus capacitor is arranged at the port DC; a stator Crowbar is provided with a port AC and a port DC, wherein the port AC is connected with the port A of the DVR, and the direct-current bus capacitor is arranged at the port DC; and a working state of the DVR is controlled by a triggering signal sent by the controller.
Owner:NANJING JUNENG ELECTRICAL CONTROL AUTOMATION EQUIP
Constant-air-volume motor drive control method for fan
ActiveCN105570175AImprove reliabilityRealize intelligent controlElectric motor controlEngine controlAir volumeMotor drive
The invention discloses a constant-air-volume motor drive control method for a fan. The constant-air-volume motor drive control method comprises the following steps: determining Duty 0, N0, I0 and CFM0, keeping Duty0 unchanged, and blocking the sectional area of an air flue opening; respectively obtaining Nx, Ix and CFMx under different Sx values while an initial sectional area is S0 and an effective ventilation sectional area is Sx; obtaining a stepless speed regulation datum reference curve; enabling the CFMX to be identically equal to CFM0 by regulating Dutyx, thereby obtaining current Nx, Ix and Dutyx; obtaining a constant-air-volume regulating datum curve; setting Dutyx as Duty0, and measuring Nx and Ix; according to the stepless speed regulation datum reference curve and the constant-air-volume regulating datum curve, correcting a duty ratio to be Dutyx, and enabling air volume CFMx of an air outlet to be identically equal to CFM0. In case of no sensor feedback, the control method realizes intelligent control of constant air volume of the fan, and improves the reliability of motor control.
Owner:南京沃特电机有限公司 +1
Intelligent reducing self-starting vertical axis wind power generation device
InactiveCN102352818AOperation impactReasonable structureWind motor controlMachines/enginesElectric generatorServo
The invention discloses an intelligent reducing self-starting vertical axis wind power generation device. A straight-line wing-shaped structure in a vertical axis wind turbine is adopted; the combined structure of a servo motor and a gear rack is used for controlling and regulating the gyration radius of a wind wheel; when wind speed is lower than cut-in speed, the wind power generation device automatically starts an operation and automatic-switching function; and the gyration radius of the wind wheel is intelligently controlled, the wind power generation device is subjected to self-starting, and safe operation is monitored. From the aspect of changing the gyration radius of the wind wheel of the vertical axis wind turbine, the invention provides an effective method of improving the efficiency of the vertical axis wind wheel and the output power of the wind power generation device, and provides an effective path for the self starting of the wind power generation device when wind speed is lower than the cut-in speed and the self protection of the wind power generation device when wind speed exceeds rated wind speed. The intelligent reducing self-starting vertical axis wind power generation device is especially suitable for wind power generation application occasions with high wind speed and quickly-changed wind speed and wind direction, such as ships, ocean engineering platforms, islands and the like, and has the advantages of compact structure, high control precision of the gyration radius of the wind wheel and stable system stability and is convention to install.
Owner:NANTONG TEXTILE VOCATIONAL TECH COLLEGE
Data wiping system in virtualization environment and method thereof
ActiveCN103996003ANo effect on operationOperation impactDigital data protectionPlatform integrity maintainanceVirtualizationUser privacy
The invention relates to a data wiping system in a virtualization environment and a method thereof, and belongs to the field of data safety and user privacy in cloud computing. Based on a Xen virtualization framework, the data wiping system comprises a process monitoring module, a control module, a virtual machine introspection module and a data wiping module. The control module, the virtual machine introspection module and the data wiping module are deployed in a management field, and the process monitoring module is deployed in a virtual machine manager, namely a VMM kernel. The data wiping system in the virtualization environment and the method thereof are used for reducing the threats to sensitive data stored in an internal storage when a user client operates, a time window which is attacked by the sensitive data is shortened at a possibly small cost, and the security of the sensitive data in the user client is guaranteed.
Owner:AVICIT CO LTD
Variable pitch transport chain
The invention relates to a variable pitch transport chain which comprises hollow chain pins, wherein the chain pins are connected by chain plates; an autorotation axis is arranged in each hollow chainpin; the lower part of the autorotation axis is provided with an autorotation chain wheel, and the upper part of the autorotation axis is provided with a bottle blank supporting seat; and both sides of a transport chain are provided with annular guide rails. The variable pitch transport chain is characterized in that a chain link short pitch L1 in the same drawing and blowing unit group is smaller than a chain link long pitch L2 between the drawing and blowing unit groups; two chain links with the short pitch are connected by the short chain plate A and short chain plate B; and two chain links with the long pitch are connected by the long chain plate A and the long chain plate B. The scheme is suitable for simultaneously moulding a plurality of bottle blowing machines once and can fully and reasonably utilize a chain link space on the transport chain after the chain link pitch positioned in the same drawing and blowing unit group is shortened, thereby improving the moulding efficiency; in addition, die cavities of a moulding die correspond to bottle blanks of the same drawing and blowing unit group, after the pitch is reduced, distanc among all die cavities are also reduced, thereby saving die materials.
Owner:台州市黄岩业康机械有限公司
Bio-particle fuel burner
InactiveCN103438434AIncrease profitImprove the protective effectFuel supply regulationIncandescent ignitionCombustion chamberTransformer
The invention relates to fuel-burning equipment and provides a bio-particle fuel burner. According to the bio-particle fuel burner, the burner fast to ignite can reduce fuel loss, improve the utilization efficiency of fuel, save energy and protect environment, a machine table operates safely and stably, the burning power is large and the automatic level is high. The bio-particle fuel burner comprises a machine frame, a combustion chamber, a bin, a PLC, a temperature sensor and an air blower, wherein the combustion chamber, the bin, the PLC, the temperature sensor and the air blower are arranged on the machine frame. The bio-particle fuel burner further comprises an adjustable-air flow-distributing device and an ignition device. The bin is provided with a discharge device. The combustion chamber is provided with a feed pipe communicated with the discharge device of the bin. The air blower is communicated with an air inlet of the combustion chamber through the adjustable-air flow-distributing device. A flow-distributing output pipe air outlet of the adjustable-air flow-distributing device is further communicated with a feed pipe discharge opening of the combustion chamber. The ignition device comprises an ignition transformer and an electric stove wire connected with the ignition transformer. The electric stove wire is arranged in the combustion chamber. The PLC is connected with the discharge device, the ignition transformer, the temperature sensor and the adjustable-air flow-distributing device respectively.
Owner:蔡春祥
Ball seat assembly and ball-pitching sliding sleeve type fracturing device
ActiveCN105840163AReduce construction costsHigh degree of automationFluid removalWell/borehole valve arrangementsType fractureBall release
The invention relates to a ball seat assembly and a ball-pitching sliding sleeve type fracturing device. The ball-pitching sliding sleeve type fracturing device comprises an inner sleeve, and outer sleeve, a fracturing ball, and the ball seat assembly. The inner sleeve is slidably sleeved in the outer sleeve. The inner sleeve and the outer sleeve are respectively provided with fracturing windows. The inner sleeve slides to open or close the fracturing window. The inner side surface of the outer sleeve is provided with a fracturing ball releasing groove. The fracturing ball is pitched on the ball seat assembly. When the ball seat assembly moves to the fracturing ball releasing groove, the fracturing ball generates thrust under the action of external forces, to push a plurality of ball seat supports to move outward along a radial direction, and the fracturing ball passes through the ball seat assembly and falls into a next section of the ball-pitching sliding sleeve type fracturing device. Using the ball-pitching sliding sleeve type fracturing device can realize an objective of fracturing an infinite layer section by just pitching a ball, and construction cost is reduced and yield of a single well is increased. The device solves defects in the prior art of range limitation of a fracturing sliding sleeve and influence of sliding of the inner sleeve after a shear pin is cut off.
Owner:PETRO KING ENERGY TECH HUIZHOU CO LTD
Database test method and device
ActiveCN105446825AImprove accuracyOperation impactSpecial data processing applicationsRedundant operation error correctionData operationsDatabase
A database test method and device are provided; the method comprises the following steps: stopping a backup database from copying a main database, wherein the backup database is the backup database for the main database; obtaining a first data operation request on the main database in a preset time; starting a second data operation request on the backup database according to the obtained first data operation request on the main database in the preset time; carrying out database test for the backup database when the backup database executes corresponding data operation according to the received second data operation request, thus obtaining a database test result. The method and device can effectively improve database test result accuracy.
Owner:ALIBABA GRP HLDG LTD
Intelligent weeding robot
InactiveCN109769419APromote growthEasy to moveSoil-working equipmentsWeed killersAutomatic controlEngineering
The invention relates to an intelligent weeding robot. The intelligent weeding robot comprises a cart, a GPS positioning device, a camera used for identifying weeds and a weeding device, wherein the GPS positioning device, the camera and the weeding device are arranged on the cart. The weeding device comprises a cutter head which is mounted at the front end of the cart and used for cutting weeds and a supporting arm which is used for supporting the cutter head; the cart is also provided with a weed burning device used for burning the cut weeds; the cart is internally provided with an automaticcontrol module, and the automatic control module includes a GPS positioning module, an image recognition module, a weed cutting module and a weed burning module; the GPS positioning module, the imagerecognition module, the weed cutting module and the weed burning module are used for controlling the GPS positioning device, the camera, the weeding device and the weed burning device respectively; the automatic control module comprises a control panel and a touch display screen. The intelligent weeding robot can recognize and cut the weeds and then burn off the cut weeds to prevent some weeds from rooting and germinating again, and the weeds are burned into ash and can be used as fertilizer to promote crop growth.
Owner:韩振磊
Air conditioner and control method and device for air guide plates of air conditioner and draught fan of indoor unit of air conditioner
ActiveCN110500697AShorten the timeOperation impactMechanical apparatusSpace heating and ventilation safety systemsElectricityControl theory
Owner:HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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