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131results about How to "Solve running problems" patented technology
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Distributed computation system and method used for real-time video processing
InactiveCN101808126ASolve running problemsClosed circuit television systemsTransmissionVideo storageMachine vision
The invention relates to a distributed computation system used for real-time video processing, which belongs to the technical field of video analysis and is characterized by comprising a distributed resolving module of video processing algorithm for traffic event detection, a load balancing module, a video storage / distribution server, a static processing computer colony and at least one dynamic processing computer so as to resolve a machine vision and video processing algorithm into subalgorithms which can be concurrently processed; the subalgorithms are resolved to the static processing computer colony to carry out concurrent processing and are synthesized on the dynamic processing computer, and the number of the task of each frame image and the mapping table of the working state of each static processing computer are established by the load balancing module to dynamically balance the load, and finally vision library interfaces are internally installed in static processing software and dynamic processing software, and thereby, the further improvement space is provided for the performance, the function and the expandability of a real-time video analysis system.
Owner:TSINGHUA UNIV
Multilingual cloud compilation-based dynamic micro-service calling method and apparatus
ActiveCN106250199ASolve running problemsSoftware engineeringNon-redundant fault processingMaintainabilityComputer terminal
The invention provides a multilingual cloud compilation-based dynamic micro-service calling method and apparatus. After a preset server receives a call request of calling a first micro-service, a corresponding first micro-service instance is searched for in the preset server and runs, or a first script code corresponding to the corresponding first micro-service is searched for in a micro-service script warehouse, the first micro-service instance runs after the first script code is compiled to form the first micro-service instance, and a running result is fed back to a terminal. Therefore, the problem in the condition that the server still can execute a preset task to ensure normal running of a business system when the business system is upgraded or has a fault is solved, and the flexibility, openness, maintainability and expandability of system function expansion are effectively improved.
Owner:BEIJING BEISEN CLOUD COMPUTING CO LTD
Active power distribution network multi-period island operation method giving consideration to intelligent soft switch
ActiveCN107800155ASolve the problem of running in islandsSolve running problemsSingle network parallel feeding arrangementsAc network load balancingDistribution power systemStandard form
The invention discloses an active power distribution network multi-period island operation method giving consideration to an intelligent soft switch, and the method comprises the steps: inputting a selected power distribution system structure and parameters; building an active power distribution network multi-period island operation model; carrying out the linearization, second-order conic model transformation and rotating conic model transformation of a target function and nonlinear constraint conditions in the active power distribution network multi-period island operation model according toa standard form of conic planning; employing a conic planning solving method for solving a second-order conic planning model, and obtaining the recovery load coefficient of each node, the output power and control modes of controllable and uncontrollable distributed power supplies, the charging and discharging power and load states of an energy storage system and the transmission power of the intelligent soft switch. and outputting a solving result. The method gives full consideration to the impact on the island operation of a power distribution system from the access of the intelligent soft switch, and the second-order conic planning model for the active power distribution network multi-period island operation, and the problem of the active power distribution network island operation is solved.
Owner:TIANJIN UNIV
Power-saving mode starting method and device
ActiveCN105278370AGuaranteed uptimeSolve running problemsProgramme control in sequence/logic controllersPower savingElectronic circuit
The invention reveals a power-saving mode starting method and device, and belongs to the field of electronic circuits. The method comprises the steps: receiving an operation instruction for operating a specific application program; detecting whether the number of application programs of the specific type in operation reaches a preset threshold value or not if the current voltage of a battery in intelligent equipment is lower than a first preset voltage and the battery is at a discharge state; selecting the application program with the operation priority being lower than the operation priority of the specific application program from the application programs of the specific type in operation if the number of the application programs of the specific type in operation reaches the preset threshold value, and turning off the selected application program; and operating the specific application program after the application program is turned off successfully. Therefore, the method solves a problem that a user cannot turn off a background application program in operation to guarantee the normal operation of a to-be-started application program, achieves the automatic turning-off of the background application program in operation, and guarantees the normal operation of the to-be-started application program.
Owner:XIAOMI INC
Composit scale and corrosion inbibitor for circular cooling wate treatment
InactiveCN1772656AImprove scale and corrosion resistanceConserve fresh water resourcesScale removal and water softeningMaleic anhydrideBenzotriazole
The present invention relates to one kind of composite scale and corrosion inhibitor suitable for circular cooling water with high concentration multiple. The composite scale and corrosion inhibitor consists of amino acid 15-30 wt%, phosphonyl maleic anhydride polymer 5-20 wt%, acrylic acid-acrylate copolymer 5-15 wt%, humate 0.5-2.0 wt%, benzotriazole 0.5-2.0 wt%, organic phosphonate 5-15 wt% and hydroxide 8-15 wt%, except deionized water.
Owner:天津市科达斯实业有限公司 +1
Method for implementing embedded system based virtual machine on set-top box
ActiveCN102622263AImprove portabilityAdapt to the requirements of embedded systemsSelective content distributionSoftware simulation/interpretation/emulationGraphicsWorkload
The invention discloses a method for implementing embedded system based virtual machine on a set-top box, which includes steps of generating corresponding compiling scripts on the basis of different platforms, compiling corresponding QT graphic libraries, appointing corresponding platforms when compiling the compiling scripts of the QT graphic libraries, transplanting the QT graphic libraries to QT graphic libraries in higher versions, transplanting commands and file reading manners of a central processing unit (CPU) at the bottom level of the virtual machine, compiling and generating Java virtual machine programs adaptive to the different platforms, and running value added services on the set-top box by calling the Java virtual machine programs. The method is capable of realizing the embedded system based virtual machine on the set-top box, the requirements of the embedded system for performance and space can be met, development and maintenance are simple, functions are unified, research and development workload due to the different platforms is reduced and development and maintenance cost is reduced.
Owner:FENGHUO COMM SCI & TECH CO LTD
Wearing and clogging diagnosing method of SCR denitration catalyst
InactiveCN107462280ASolve running problemsImprove operating economyMeasurement devicesAnalysis dataPhysical model
The invention relates to a wearing and clogging diagnosing method of an SCR denitration catalyst. The method comprises: graphical representation and marking are carried out on wearing and clogging situations of a catalyst inside a reactor and a visual cloud chart is drawn; sampling is carried out on the catalyst inside the reactor and mechanical property detection and analysis are carried out on the catalyst to obtain detection and analysis data of the catalyst; field detection of denitrification equipment is carried out to obtain data of an actual flow field operation situation of the denitrification equipment; on the basis of CFD numerical value simulation and physical model testing, a model consistent with the catalyst structure and the internal structure of the reactor is established; and with the visual cloud chart, the data and the model, causes of wearing and clogging of the catalyst are obtained. With the diagnosing method provided by the invention, a catalyst operation problem of a power plant is solved; the operation economy and equipment safety of the denitrification equipment are improved; exploration of diagnosing the wearing and clogging problems of the SCR catalyst is carried out; and thus the service life of the catalyst is prolonged and the risk of the operation accident of the denitrification equipment is reduced.
Owner:SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
Apparatus for automatically detecting insulating properties of electric power transmission line
ActiveCN105759182AGuaranteed timelinessAvoid unnecessary trouble caused by manual inspectionTesting dielectric strengthFault location by conductor typesElectric power transmissionElectric field sensor
The invention relates to an apparatus for automatically detecting insulating properties of an electric power transmission line. The apparatus is characterized by including an apparatus main body, a walking module, a measuring module, an outer expansion module, a secondary opening module, a power supply module, a control module and a wireless communication module. The control module, the power supply module, and the wireless communication module are mounted inside the apparatus main body. The power supply module and the other modules are connected so as to supply power to the other modules. The control module is connected to the walking module, the measuring module, the outer expansion module, the secondary opening module, and the wireless communication module so as to realize detection control function. According to the invention, the apparatus main body is moving on the electric power transmission line, and a temperature sensor and an electric field sensor are used individually for collecting temperature values and electric field intensity values at different positions of the electric power transmission line, and malfunction points are determined by the temperature values and the electric field intensity values in combination with a counter on a drive wheel. The apparatus of the invention guarantees timeliness of detection of the insulating properties of the electric power transmission line, effectively prevents unnecessary trouble brought by current method of artificial detection, and substantially increases detection efficiency.
Owner:HEBEI UNIV OF TECH
Method for running Windows system on home-made processor platform
InactiveCN103685539AGuaranteed uptimeSolve running problemsTransmissionOperational systemRemote desktop
The invention relates to a method for running Windows system on a home-made processor platform. The method comprises the following steps: installing an operating system and a virtual machine monitor software on a server; respectively installing a plurality of virtual machines through a virtual machine monitor, and starting the virtual machines to run; installing an embedded operating system and a remote desktop connection software on a cloud terminal; running the remote desktop connection software, and establishing remote connection of specific virtual machines in a cloud server; carrying out data input by the cloud server, and transmitting input data to the virtual machines in the cloud servers remotely; after carrying out computing processing on the virtual machines in the cloud server, pushing display frame of desktop image information to display output equipment of the cloud terminal. The method is particularly suitable for cloud terminals based on non-universal processors widely applied in cloud computing, and ensures normal running of the Windows operating system.
Owner:706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
Multi-core system resource delay recycle lock realizing method and multi-core system resource delay recycle lock realizing system
InactiveCN102609313ASolve running problemsResource allocationProgram synchronisationData sharingMulticore systems
The invention discloses a multi-core system resource delay recycle lock realizing method and a multi-core system resource delay recycle lock realizing system, which relate to the technical field of data sharing. The multi-core system resource delay recycle lock realizing method includes: identifying states of a CPU (central processing unit) by setting a ring chain table consisting of data units, so that during trash recycling, other CPUs can recycle trashes simultaneously when the CPU for recycling trashes gets into silent state. Accordingly, the problem that running of normal services are affected due to the fact that resources are suddenly massively centrally recycled to be used up.
Owner:OPZOON TECH
Control method for multi-split air conditioner, multi-split air conditioner and storage medium
ActiveCN109780673ASolve running problemsMechanical apparatusLighting and heating apparatusEngineeringTemperature control
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Hybrid power ship energy efficiency control system and method
PendingCN111907680AFlexible push modePromote environmental protectionPower plants using propulsion unit combinationsPropulsive elementsPowered watercraftDiesel engine
The invention provides an energy efficiency control system and method for a hybrid power ship. The control system comprises a first diesel generator set, a second diesel generator set, a shore power supply, an alternating current bus, an energy storage unit, a direct current bus, a left motor, a left clutch, a left main engine, a right motor, a right clutch and a right main engine. The first diesel generating set and the second diesel generating set are connected with a shore power supply alternating-current bus; the alternating-current bus is connected to the direct-current bus; the energy storage unit is sequentially connected with the direct-current bus; the direct-current bus is connected with the left motor and the right motor; the left motor is connected with the left propeller and the left host; the right motor is connected with the right propeller and the right host. The unmanned aerial vehicle has the advantages that the propellers can be independently driven by a main engine,a motor or diesel-electric drive combining the main engine and the motor; the motor can work in a propelling state or a power generation state, and the reliability is high; the hybrid power ship energy efficiency optimal grey prediction control method is provided, and the problem that a diesel engine operates with the lowest oil consumption SFOC is fundamentally solved.
Owner:锡瑞迪船用动力系统(上海)有限公司 +1
Virtual volume creation method and apparatus, and virtual volume mounting method and apparatus
InactiveCN107391224ASolve problems that affect the normal operation of the businessSolve running problemsData switching networksSoftware simulation/interpretation/emulationVirtualizationVirtual machine
The invention discloses a virtual volume creation method and apparatus, and a virtual volume mounting method and apparatus, relates to the technical field of cloud computing, and aims to solve the problem of influence on normal operation of businesses when a same virtual volume is mounted by multiple virtual machines. The method comprises the steps that a virtual management platform receives a request of creating a virtual volume; and the virtual management platform creates the virtual volume based on the request, wherein the virtual volume comprises a first storage space, and the first storage space is used for recording information on whether the virtual volume is occupied or not.
Owner:HUAWEI TECH CO LTD
Program control method, device and system
The invention discloses a program control method, device and system and belongs to the field of internet. The method comprises the steps of acquiring sensor data through a sensor and sending the sensor data to a controlled device. The sensor data are acquired through the sensor in a control terminal and sent to the controlled device. The controlled device receives the sensor data sent by the control terminal and injects the sensor data into a virtual sensor, so that application program reads the sensor data from the virtual sensor and finishes various control operations according to the read sensor data. The problem that the application program in related technologies only can normally run in a sensor environment is solved. On the premise that any content of the application program is not modified, the application program which only can normally run in the sensor environment can also normally run in the controlled device without the sensor environment.
Owner:XIAOMI INC
Power factor correction circuit control parameters adjusting method and device, and air conditioner
ActiveCN104656735AAvoid compromising qualitySolve running problemsProgramme control in sequence/logic controllersElectric variable regulationPower conditionerEngineering
The invention discloses a power factor correction circuit control parameters adjusting method and device, and air conditioner. The method for adjusting the control parameters of the power factor correction circuit comprises the following steps of acquiring preset control parameters of a proportional-integral controller in the power factor correction circuit; controlling the power factor correction circuit so as to run the preset control parameters; detecting whether the power factor correction circuit works abnormally or not; if the abnormal working of the power factor correction circuit is detected, adjusting the preset control parameters. Through the method, the device and the air conditioner disclosed by the invention, the problem that a product cannot go on normally running when the circuit is abnormal due to the fact that the control parameters of the power factor correction circuit cannot be adjusted adaptively in the prior art is solved.
Owner:GREE ELECTRIC APPLIANCES INC
Adsorption-type climbing wheel and work method thereof
The invention discloses an adsorption-type climbing wheel. The adsorption-type climbing wheel includes a motor, a suction machine and a plurality of wheel assembly structures; the wheel assembly structures are connected to form a frame of the wheel, the motor and the suction machine are fixedly connected with the centers of the wheel assembly structures, and the front and rear faces of the motor and the front and rear faces of the suction machine are oppositely arranged. By adopting the adsorption-type climbing wheel, regarding the complex shapes and different materials of walls, the purpose of running on vertical walls is achieved; depending on air cavity pressure, the adsorption-type climbing wheel has high adsorption performance and can move on the walls up and down; the adsorption-typeclimbing wheel is simple in structure and high in environment adaptiveness.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Compact bogie with built-in axle boxes for high-cold subway vehicles
ActiveCN107628049AReduce fixed wheelbaseSmall turning radiusRailway wheel guards/bumpersAxle-boxesTraction motorWheelbase
The invention discloses a compact bogie with built-in axle boxes for high-cold subway vehicles and belongs to the field of bogie devices for railway vehicles. The compact bogie with the built-in axleboxes for high-cold subway vehicles comprises two drive devices, two brake devices, two wheel set devices, a compact casting structure, a compact secondary suspension system and two wheel set built-inaxle box devices, wherein each wheel set device comprises an axle and wheels arranged at two ends of the axle symmetrically, each drive device comprises a traction motor and a gearbox, and each brakedevice comprises two wheel set brakes. The compact bogie with the built-in axle boxes for high-cold subway vehicles has the advantages that a bogie fixed wheel base is reduced substantially while structural strength is ensured, and yaw angle stiffness of wheel sets and distorsion stiffness of the bogie are both reduced effectively, so that a rotation radius of the bogie is decreased, the curve passage capacity thereof is improved to meet the anti-collision requirements of horizontal damping and curve bends completely, and the space occupied by a retainer of a previous horizontal buffer is saved; by the aid of a snow plow device and three-rail ice-snow scraper devices, the compact bogie is applicable to high-latitude extremely-cold regions.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Feed water pump turbine steam exhaust waste heat recovering and recycling system
PendingCN108533341ASolve running problemsRetrofit project is easy to realizeSteam useEngineeringTurbine
A feed water pump turbine steam exhaust waste heat recovering and recycling system comprises a big turbine, an air cooling island or a condenser, a high back pressure condenser, a small feed water pump turbine, a steam increase machine, a steam increase machine condenser and a steam exhaust lead-out system. A lower pressure cylinder steam discharging pipeline of the turbine is connected with the air cooling island or the condenser. Through the steam exhaust lead-out system, steam exhaust is led out to enter the steam side of the high back pressure condenser. An exhaust steam branch of the small feed water pump turbine is connected with a pumping steam inlet of the steam increase machine. Exhaust steam of the steam increase machine enters the steam side of the steam increase machine condenser. The water side of the steam increase machine condenser is connected with the water side of the high back pressure condenser for water output. Back pressure decoupling of the big turbine and the small turbine is achieved, and the operation problem of the small feed water pump turbine is solved, equipment does not need to be modified; the adaptability of a heat supply system becomes more complete; and the waste heat recovering and recycling system can achieve operation and switching under different working conditions at the same time.
Owner:UNI RISING BEIJING TECH CO LTD
Compact type bogie with internally-arranged axle boxes for subway vehicle
ActiveCN107697091AReduce fixed wheelbaseSmall turning radiusBogiesBogie-underframe connectionsBogieGyration
The invention discloses a compact type bogie with internally-arranged axle boxes for a subway vehicle and belongs to the field of bogies for subway vehicles. The compact type bogie comprises two driving devices, two braking devices, two wheel pair devices, a compact type cast framework, a compact type secondary suspension system and two wheel pair internally-arranged type axle box devices. The wheel pair devices comprise axles and wheels symmetrically arranged at the two ends of the axles, the driving devices comprise traction motors and gear boxes, and each braking device comprises two wheelpair brakes. The fixed axle distance of the bogie is reduced substantially while structural strength is guaranteed, the yaw angle rigidity of wheel pairs and the warping rigidity of the bogie are reduced effectively, accordingly the gyration radius of the bogie is decreased, the small-radius curve passing capacity of the bogie is improved, the transverse damping requirement and the anti-collisionrequirement on a curve bend can be met completely, and the occupied space of an original transverse buffer stopping seat is saved.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Intelligent environmental protection management system and method based on industrial park
PendingCN112637306APromote cross-industryFacilitate cross-business developmentTransmissionInstrumentsData displayInformation processing
The invention relates to an intelligent environmental protection management system and method based on an industrial park, computer equipment and a storage medium. The system comprises a hardware layer which is used for deploying monitoring data collection equipment, and carrying out the unified collection, conversion and uploading of the operation state of the equipment, water quality and water quantity, and solid waste monitoring data; a communication layer is used for networking the service data and the acquired data with a cloud platform through an optical fiber or a wireless network so as to realize transmission of the service data and the acquired data to the cloud platform; a platform layer is used for providing public service of the underlying application; an application layer is used for carrying out information processing through the cloud platform so as to provide a corresponding management function, and comprises an environmental protection database, a compliance management module, a water resource management module and a solid waste resource management module; a user layer is used for realizing data display and interaction through intelligent terminal equipment for management personnel. The problems of repeated construction, information isolated island and low information utilization efficiency of an environmental protection system in the industrial field can be solved.
Owner:华润环保发展有限公司
Method and device for obtaining swap space in UNIX-like operation system
The invention discloses a method and a device for obtaining a swap space in a UNIX-like operation system adopting a LiveX form. When the UNIX-like operation system adopting the LiveX form is in operation, a swap space acquisition program is operated, and a swap file is dynamically created and activated; when the UNIX-like operation system exits, a swap file purging program is operated, and the swap file created dynamically is deleted. According to the method and the device, the swap space is created for operating the UNIX-like operation system adopting the LiveX form, the problem that software with large memory requirement is in operation is solved, file swap space is dynamically created on storage equipment accessed to a host machine, so that the UNIX-like operation system can entirely pack a practical system into a practical Live system, and the large application program can be operated.
Owner:韶山高新创业投资有限公司
Pump body assembly and slide vane compressor with pump body assembly
PendingCN111022331AImprove operational reliabilityImprove structural strengthRotary piston pumpsRotary piston liquid enginesEngineeringMechanical engineering
The invention provides a pump body assembly and a slide vane compressor with the pump body assembly. The pump body assembly comprises a flange, an air cylinder, a spindle and multiple slide vanes, wherein the slide vanes are slidably arranged on a rotor part of the spindle; and the rotor part is located in the air cylinder. The pump body assembly further comprises an exhaust structure arranged onthe flange, wherein the exhaust structure comprises a diversion trench and an exhaust hole communicating with the diversion trench; the exhaust hole extends onto the end surface of the flange from thebottom of the diversion trench; the rotor part is provided with an exhaust trough; in the rotation process of the spindle, gas located in a compression cavity of the air cylinder enters the diversiontrench through the exhaust trough, enters the exhaust hole through the diversion trench, and is exhausted to the outside of the pump body assembly through the exhaust hole. The pump body assembly andthe slide vane compressor with the pump body assembly provided by the invention effectively solve the problem that the structural strength of a flange in the prior art is lower so as to affect the normal operation of the slide vane compressor.
Owner:GREE ELECTRIC APPLIANCES INC
Air conditioner indoor unit, air inlet method for air conditioner indoor unit and air conditioner
PendingCN107120725AGuaranteed uptimeSolve running problemsSpace heating and ventilation safety systemsLighting and heating apparatusAir volumeEnvironmental engineering
The invention provides an air conditioner indoor unit, an air inlet method for the air conditioner indoor unit and an air conditioner. According to the technical scheme, the air conditioner indoor unit comprises an air inlet structure, a PM2.5 monitoring sensor and a controller. The air inlet structure comprises a haze removal filtering screen. The haze removal filtering screen is arranged at an air inlet of the air conditioner indoor unit in a position-adjustable manner for blocking at least part of the air inlet. The PM2.5 monitoring sensor is used for monitoring the real-time PM2.5 value of the environment where the air conditioner indoor unit is located. The controller is used for controlling the haze removal filtering screen to open or close the air inlet according to the PM2.5 value. Accordingly, the air inlet of the air conditioner indoor unit is controlled to be closed when the air conditioner operates in the purification mode, and the air inlet of the air conditioner indoor unit is controlled to be opened when the air conditioner operates in the normal mode; and it is guaranteed that the air intake is sufficient when the air conditioner operates in the normal mode, and the problem that when an air conditioner indoor unit with a haze removal filtering screen operates in the normal mode, the normal operation of the air conditioner is influenced due to the blocking of the haze removal filtering screen in the prior art is solved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
Active power distribution network island division method considering uncertainty of distributed power supply
ActiveCN108376997ASolve running problemsImprove power supply reliabilitySingle network parallel feeding arrangementsAc network load balancingIslandingState of charge
The invention relates to an active power distribution network island division method considering uncertainty of a distributed power supply. According to the selected active power distribution network,the active power distribution network structure and parameters are inputted; according to the active power distribution network structure and the parameters, a deterministic active power distributionnetwork island division model is established, and a compact form of the active power distribution network island division model is acquired; according to the compact form of the active power distribution network island division model, an uncertainty set of an uncontrollable distributed power source is set, and an active power distribution network island division robust model considering the uncertainty of the distributed power source is established; the active power distribution network island division robust model is solved through the column and constraint generation algorithm; the solutionresult is outputted, including a recovery load coefficient of each node, the output power and a control mode of the controllable / uncontrollable distributed power source, the charging and dischargingpower and the state of charge of an energy storage system, and the transmission power of an intelligent soft switch. The method is advantaged in that the load recovery level can be effectively improved, and power supply reliability of the active power distribution network can be further improved.
Owner:TIANJIN UNIV
Phase sequence self-adaption control method of three-phase PWM rectifier
ActiveCN107742987AAccurately lock the positive sequence phase angleAchieve normal operationAc-dc conversionThree phase pwm rectifierNegative phase
The invention discloses a phase sequence self-adaption control method of a three-phase PWM rectifier. The method comprises the steps that the positive phase sequence and the negative phase sequence ofnetwork voltage are accurately identified through an improved soft phase-locked loop, and the positive-sequence phase angle of the network voltage is accurately locked all the time; according to thepositive and negative phase sequences of the network voltage, the phase sequence of a control algorithm is adjusted, and the normal operation of equipment is achieved under the condition of the negative-sequence network voltage. By means of the control method, artificial judgment using the field network voltage phase sequence is omitted, the problem of the normal operation of the equipment under the condition of a wrong phase sequence is solved, the control method has a very high practicable value in the application field, and the application prospect is limitless.
Owner:西安费米人工智能有限公司
Pressure adjustable type plunger gas-lift wellhead device and monitoring method thereof
ActiveCN107701141APrevent overpressureEffective drainageConstructionsWell/borehole valve arrangementsEngineeringIntelligent management
The invention discloses a pressure adjustable type plunger gas-lift wellhead device and a monitoring method thereof. The pressure adjustable type plunger gas-lift wellhead device comprises a remote operating platform, a blowout prevention pipe and a bypass pressure adjusting pipeline; a side opening of the blowout prevention pipe is connected with the bypass pressure adjusting pipeline, and the bypass pressure adjusting pipeline is internally provided with a 90-degree pressure-bearing ball-shaped adjusting valve; and the remote operating platform is connected with the 90-degree pressure-bearing ball-shaped adjusting valve and is used for sending a signal to the 90-degree pressure-bearing ball-shaped adjusting valve to control opening and closing of a wellhead. The pressure adjustable typeplunger gas-lift wellhead device has the characteristics of simple structure and convenient operation, product development and on-site use of the pressure adjustable type plunger gas-lift wellhead device can greatly reduce the workload of on-site staffs, automatic and intelligent management of fluid discharging of a plunger in a gas field are strengthened, and the difficult problem of plunger welloperation is solved.
Owner:PETROCHINA CO LTD
Switching mechanism of elevator running rail for multi-car paralleling
ActiveCN110155850ASolve the problem that it can only run on one trackReasonable layoutElevatorsBuilding liftsEngineering
The invention discloses a switching mechanism of elevator running rails for multi-car paralleling. A lift car is provided with at least two running rails, any two of the running rails are taken as a first rail and a second rail, the switching mechanism communicates with the first rail and the second rail through a switching piece, and the lift car is converted into the first rail and the second rail through the switching piece. According to the switching mechanism of the elevator running rails for multi-car paralleling, a plurality of lift cars can be operated at the same time through one running rail, and the lift cars can be subjected to overrun operation, so that the problem that a conventional car can only operate on one running rail is solved.
Owner:HUNAN DAJU INFORMATION TECH CO LTD
Air conditioner, air conditioner indoor and outdoor unit communication circuit and fault detection method thereof
ActiveCN112283875ASolve running problemsProblems affecting normal operationMechanical apparatusSpace heating and ventilation safety systemsControl engineeringCommunication circuits
Owner:TCL AIR CONDITIONER ZHONGSHAN CO LTD
Cutting device of annular protruding flanging at welding line inside polyethylene pipe
The invention relates to the technical field of welding tools, and provides a cutting device of annular protruding flanging at a welding line inside a polyethylene pipe. The cutting device comprises a center rod, elastic centering supports, a fixing base, a connecting base, a cutting assembly and an elastic supporting base; the at least two elastic centering supports are distributed on the outer side of the center rod at intervals in the left-right direction, the fixing base and the elastic supporting base are arranged between two elastic centering supports, one end of the fixing base and the center rod are fixed together, the other end of the fixing base and one end of the connecting base are hinged together, and the other end of the connecting base is fixedly provided with the cutting assembly capable of conducting lossless operation on the annular protruding flanging at the welding line inside the polyethylene pipe. By means of the cutting device, lossless operation on the annular protruding flanging at the welding line inside the polyethylene pipe can be achieved through the elastic centering supports, the cutting assembly and the elastic supporting base, the cutting position of the cutting device is accurate, the pipe is not prone to being damaged, and smooth implementation of repairing engineering construction of the HDPE pipe penetrating a steel pipe.
Owner:克拉玛依市博瑞科技发展有限公司
Method and system for monitoring indoor environment
InactiveCN105841299AEasy to controlSolve running problemsMechanical apparatusSpace heating and ventilation safety systemsTechnology of televisionControl set
The invention discloses a method and system for monitoring the environment and belongs to the technical field of intelligent televisions. The method comprises the steps that a master control module in an intelligent television obtains environmental data collected by a gas sensor integrated in the intelligent television; when the environmental data conform to a set numerical range, a corresponding control strategy is determined through the master control module; and the master control module controls a display screen of the intelligent television to display a prompt message according to the control strategy; or, the master control module obtains a control instruction corresponding to the control strategy so as to control set air purification equipment according to the control instruction. According to the method and system for monitoring the environment, the problem that air purification equipment in the prior art still operates after the indoor air quality reaches the standard is solved, therefore, a user can control the air purification equipment more conveniently, and the energy-saving effect is achieved; and in addition, the gas sensor is integrated in the intelligent television, so that the problem that an intelligent television in the prior art does not have the function of detecting the indoor air quality is solved.
Owner:LETV HLDG BEIJING CO LTD +1
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