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266results about How to "Avoid direct connection" patented technology
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Method of Operating a Multiport Vehicle Charging System
ActiveUS20130057210A1Avoid direct connectionMobile unit charging stationsPower to auxillary motorsBattery chargeElectrical battery
A method of distributing charging power among a plurality of charge ports of a battery charging station is provided, where the battery charging station includes a plurality of power stages where each power stage includes an AC to DC converter and provides a portion of the charging station's maximum available charging power, the method comprising the steps of (i) monitoring battery charging station conditions and operating conditions for each charging port; (ii) determining current battery charging station conditions, including current operating conditions for each charging port; (iii) determining power distribution for the battery charging station and the charging ports in response to the current battery charging conditions and in accordance with a predefined set of power distribution rules; and (iv) coupling the power stages to the charging ports in accordance with the power distribution.
Owner:TESLA INC
Trolley bus system
InactiveCN105059291AAchieve insulationAvoid direct connectionElevated railway without suspended vehicleEmbedded systemPower circuits
The invention provides a trolley bus system and relates to the technical field of public transportation. The trolley bus system comprises a support, a track, a bus body and a power device. The support is erected over the road and extends in the length direction of the road. The track is erected on the upper surface of the support and extends in the extending direction of the support. The bus body is connected with the track and moves along the track relative to the support. The power device is arranged on the support and electrically connected with the bus body. A partition is arranged between the bus body and the road for vehicles on the road to run. According to the trolley bus system, the support is erected and paved with the track so that vehicles can run on the road surface and the space over the road respectively, and the transportation space of the city is developed. A power circuit is integrally fixed, and the disorder condition of the power circuit of a trolley bus is eradicated.
Owner:元鹏
Shared parking spot parking management system and method for controlling intelligent parking locks online
PendingCN108133617AReduce power consumptionSignal transmission is stableTicket-issuing apparatusIndication of parksing free spacesClose rangeMobile client
The invention discloses a shared parking spot parking management system and method for controlling intelligent parking locks online. The system comprises an intelligent parking lock (containing a first NB-IoT DTU module, a geomagnetic sensor, a controller and a motor), a parking management cloud platform, and a mobile client. According to the method, the intelligent parking lock is connected to the parking management cloud platform by using the narrow band Internet of things NB-IoT technology, and the state information of the intelligent parking lock can be acquired and the intelligent parkinglock can be controlled online. The NB-IoT technology has the characteristics of low power consumption, low traffic, wide laying range, remote control, convenience and reliability, and the like, and facilitates the realization of parking spot sharing. The system and the method overcome the problem that the existing intelligent parking lock depends on close-range Bluetooth or ultrasonic control andthe system cannot acquire the real-time state of the parking lock, can only control the parking lock offline and cannot manage the parking lock remotely. A good solution is provided for solving the difficulty of parking in cities through shared parking spots. The system and the method are convenient to implement, and have good economic benefit and application prospect.
Owner:NANJING NORMAL UNIVERSITY
Apparatus and method for charging mobile terminal
InactiveCN101304568AImprove charging effectSolve the false full problemBatteries circuit arrangementsElectric powerSoftware developmentComputer terminal
The invention discloses a charging device and a charging method of a mobile terminal, which is applied to the mobile terminal with a system connector or a special charging interface. The mobile terminal is connected with an external charger. The invention is characterized in that the charging device comprises a digital baseband unit, an analog baseband unit, an or gate device, a charging module and batteries. As a platform based on software control charging is adopted, various unconventionalities of charging function in cellphone design are resolved, thereby improving the reliability of charging function of such cellphone, additionally further being capable of reducing the development difficulty of charging module softwares, shortening the debugging period of charging modules, and improving the quality of research and development.
Owner:ZTE CORP
Safety application system for mobile terminal to automatically switch between different channel networking interfaces
InactiveCN103618736AImprove securityEnsure safetyTransmissionSecurity arrangementMobile WebReal-time computing
The invention provides a safety application system for a mobile terminal to automatically switch between different channel networking interfaces. The safety application system can prevent the special data network from being directly connected with the Internet and avoid invasion of the Internet. According to the technical scheme, an application layer comprises a browser, a client terminal, an application program and an embedded channel switching program module. The special data network is constructed in the internal data network which is physically isolated from the Internet. The internal data network is connected with a VPDN special line or an APN network and at the same time, connected with the GGSN of the mobile network or the SGSN of a regional gateway. When the application layer detects the demand for switching to a different networking network, the embedded channel switching function module is called, the current Internet networking channel is closed, networking parameters of a networking sub-system of the current mobile terminal are rectified, APN networking parameters and / or VPDN networking parameters of the special data network are designated to the application layer and the networking request is provided.
Owner:CHENGDU DAXINTONG COMM EQUIP
Shuttle valve
InactiveCN101360524AAvoid disadvantagesAvoid direct connectionOperating means/releasing devices for valvesCheck valvesClassical mechanicsShuttle valve
A shuttle valve (12, 150, 230) is provided having a body (44, 152, 232) defining an interior chamber (46, 154, 234). The valve (12, 150, 230) includes inlet (16, 158, 238), outlet (18, 160, 240) and common (14, 156, 236) ports that are coupled to the body (44, 152, 232). A shuttle (48, 162, 242) is translatably disposed within the chamber (46, 154, 234) between a first position wherein the inlet (16, 158, 238) and common (14 ,156, 36) ports are fluidicly coupled and the common (14, 156, 236) and outlet (18, 160, 240) ports are fluidicly uncoupled, and a second position wherein the outlet (18, 160, 240) and common (14, 156, 236) ports are fluidicly coupled and the common (14, 156, 236) and inlet (16, 158, 238) ports are fluidicly uncoupled. A first check valve (50) coupled to the inlet port (16, 158, 238) to permit fluid flow through the inlet port (16,158,238) into the chamber (46, 154, 234) and to prevent fluid from discharging therethrough. A second check valve (50) is coupled to the outlet port (18, 160, 240) in a manner to permit fluid to discharge from the chamber (46, 154, 234) through the outlet port (18, 160, 240) and to prevent fluid from flowing through the outlet port (18, 160, 240) into the chamber (46, 154, 234).
Owner:SMITHS MEDICAL ASD INC
Cabinet body structure
InactiveCN102038373AFirmly connectedImprove stabilityFurniture partsDismountable cabinetsEngineeringMechanical engineering
Owner:李增清
Synchronous rectification control circuit, method and flyback switch circuit
ActiveUS20180091040A1Increased shutdown speedImprove system reliabilityMultiple input and output pulse circuitsEfficient power electronics conversionVoltage regulationControl circuit
The present invention provides a synchronous rectification control circuit, a method and a flyback switching circuit. A drive circuit outputs a drive signal to control the turn-on and turn-off of a synchronous rectification transistor; a threshold comparison circuit controls the drive circuit to output a pull-up drive signal to turn on the synchronous rectification transistor when a drain-source voltage is lower than a preset low threshold voltage and controls the drive circuit to output a pull-down drive signal to turn off the synchronous rectification transistor when the drain-source voltage is higher than or equal to a preset high threshold voltage; a voltage regulation control circuit controls the drive circuit to output a drive signal for pulling up a voltage of the drive signal to a preset pull-up voltage high value when the drain-source voltage is lower than a preset voltage regulation reference value.
Owner:JOULWATT TECH INC LTD
Electrostatic precipitator for diesel blow-by
InactiveUS7267711B2Problems with electromagnetic interference (EMI) are minimizedEmission reductionMagnetic separationExternal electric electrostatic seperatorCrankcaseEngineering
A compact electrostatic precipitator is designed specifically for use in connection with eliminating particles from crankcase emissions of a Diesel engine. Such emissions may carry solid soot particles as well as suspended oil droplets. The electrostatic precipitator has an electrode housing in which a high voltage electrode is mounted, and the emissions from the crankcase of a Diesel engine are passed across the electrode to an outlet. A high voltage power supply is mounted in a separate housing, and the output of the high voltage power supply is connected to the electrode only when the electrode housing and the power supply housing are properly mated, to thereby disable the high voltage connection to the electrode when the power supply housing is removed. A current limiting device is used in the circuit to the power supply to prevent high currents from being carried if any arcing occurs, and a normally open switch is closed to provide input power to the high voltage circuitry only when the power supply housing and the electrode housing are mated.
Owner:MSP
Multi-material powder supplying and laying device for powder bed melting and control method of multi-material powder supplying and laying device
InactiveCN111408718AImprove the efficiency of hybrid printingIncrease productivityAdditive manufacturing apparatusIncreasing energy efficiencyPowder bedHigh entropy alloys
The invention discloses a multi-material powder supplying and laying device for powder bed melting and a control method of the multi-material powder supplying and laying device. A plurality of powderinlets are formed in the upper end of a main powder storage tank, an independent sub-powder storage tank is installed at each powder inlet, and powder in the sub-powder storage tanks are premixed by the main powder storage tank, then a powder mixer in a powder mixing device is used for mixing the premixed mixture, the main powder storage tank and the powder mixing device are adopted for premixingand sufficient mixing respectively, the powder mixing device serves as a buffer section, the powder mixing printing efficiency is improved, and meanwhile printing materials of different mixing contents and types can be added through the plurality of sub-powder storage tanks; and a printing moving frame is used for driving a powder spray head to spray powder, manufacturing of a functionally gradedmaterial and a multi-component alloy / high-entropy alloy-based composite material with components continuously changing in any direction is achieved, long powder mixing time is saved, real-time powderlaying and real-time machining can be achieved, the production cycle is greatly shortened, the production cost is greatly reduced, and the production efficiency is improved.
Owner:NAT INST CORP OF ADDITIVE MFG XIAN
Cast aluminum heat exchanger of gas-fired boiler
InactiveCN104061683AAvoid direct connectionAvoid corrosionFluid heatersCorrosion preventionInlet channelWater channel
The invention relates to a cast aluminum heat exchanger of a gas-fired boiler. The cast aluminum heat exchanger of the gas-fired boiler comprises a front module, a middle module and a back module, wherein a water channel is arranged in each module, a flue is formed between adjacent modules, the front module, the middle module and the back module are formed through die casting, each water channel consists of a main water inlet channel, a heat exchange water channel and a main water outlet channel, the heat exchange water channel in each module is communicated with the main water inlet channel and the main water outlet channel, the main water inlet channels of adjacent modules are communicated and the main water outlet channels of adjacent modules are communicated. Since the cast aluminum heat exchanger is formed by adopting the die casting process instead of the sand casting process, the production efficiency is improved and the manufacturing cost is reduced; since the main water inlet channels, the heat exchange water channels and the main water outlet channels are all built in the modules, the size of the heat exchanger is reduced, the assembling structure is simplified and the installation steps and the material costs of the water channels are reduced.
Owner:GUANGDONG VANWARD NEW ELECTRIC CO LTD
Double-clad fiber and photonic crystal fiber connecting method
InactiveCN104166183AAvoid direct connectionReduced core diameterCoupling light guidesPhotonic crystalDouble-clad fiber
The invention discloses a double-clad fiber and photonic crystal fiber connecting method. The method includes the steps that a double-clad fiber is tapered, and the tapered double-clad fiber and a photonic crystal fiber are connected through a transition fiber. The method effectively solves the problem that the double-clad fiber and the photonic crystal fiber are difficult to connected in a melting mode in the prior art. The double-clad fiber and the photonic crystal fiber are connected through the transition fiber, so that the double-clad fiber and the photonic crystal fiber are prevented from being connected directly. Besides, before connection, the double-clad fiber is tapered, so that the fiber core diameter and the cladding diameter of the double-clad fiber are reduced. By means of the method, connection difficulty of the double-clad fiber and the photonic crystal fiber can be effectively lowered.
Owner:11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Scientific instrument work state monitoring method based on control computer
InactiveCN101051397AConvenient choiceEasy to install and implementComputer controlSimulator controlProcess stateCondition monitoring
The present invention relates to a scientific instrument working state monitoring method based on control computer. It is composed of three portions of sate data acquisition, state data processing and data telecommunication terminal. Said state data acquisition portion adopts a multimode combined detection method based on mouse keyboard hook, software interface characteristics, journal file and communication interface data flow. It is characterized by utilizing detection for control software and control computer to obtain working state of instrument. The state data processing portion is used for processing state data into unified format. The data telecommunication terminal can be used for sending data into remote monitoring server, and the communication mode of said data telecommunication terminal and control computer has RS-232, USB and TCP / IP, and the telecommunication mode includes ADSL, LAN, WLAN, GPRS and CDMA.
Owner:JILIN UNIV
Data transmission method and device based on isolation network
InactiveCN108259446AProtection attackInconvenient solutionTransmissionData transmissionData processing
The embodiment of the invention provides a data transmission method and a data transmission device based on an isolation network. The method comprises the steps of encrypting data to be transmitted; subpackaging and coding the encrypted data; group packaging the subpackaged and coded data, wherein the group packaged data carries a package order; and displaying an image corresponding to the group packaged data. Via the data processing modes of encrypting, subpackaging, coding and group packaging the data to be transmitted, the security of the data to be transmitted is ensured; in addition, theimage corresponding to the group packaged data is displayed, so that the other devices can acquire the data to be transmitted by acquiring the image when acquiring the data to be transmitted; according to the method and the device provided by the embodiment of the invention, the problem that in the prior art, the isolation network is inconvenient to transmit data is solved.
Owner:AEROSPACE INFORMATION
Gas extraction method by using major diameter pipeline and sealing transverses between mine goaf and tail roadway
The invention discloses a gas extraction method by using a major diameter pipeline and sealing transverses between a mine goaf and a tail roadway. The method includes the following steps of dividing the mine goaf into a plurality of mine sub-goafs; establishing a first gas channel from an air inlet roadway to an air return roadway through a fully mechanized coal mining face; paving a gas extraction pipeline in a tail gas roadway; sealing the traverses between the tail gas roadway and the plurality of mine sub-goafs; and arranging a plurality of branch pipe systems which are communicated with the gas extraction pipeline in the sealed transverses corresponding to the plurality of mine sub-goafs so as to form a plurality of second gas channels from the air inlet roadway to the gas extraction pipeline through the plurality of mine sub-goafs and the branch pipe systems so that simultaneous extraction of the deep portion of the mine goaf and the neighboring areas of the fully mechanized coal mining face is achieved. By means of the method, the gas amount of an extraction goaf is large, the extraction negative pressure is far higher than ventilation negative pressure, effective interference to gas leakage fields of the mine goaf can be formed, and high concentration gases on deep portions and upper portions of the mine goaf are prevented from inrushing toward upper corner and return current.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Synchronous rectification control circuit, method and flyback switch circuit
ActiveUS10505442B2Improve system reliabilityIncreased shutdown speedMultiple input and output pulse circuitsEfficient power electronics conversionVoltage regulationEngineering
The present invention provides a synchronous rectification control circuit, a method and a flyback switching circuit. A drive circuit outputs a drive signal to control the turn-on and turn-off of a synchronous rectification transistor; a threshold comparison circuit controls the drive circuit to output a pull-up drive signal to turn on the synchronous rectification transistor when a drain-source voltage is lower than a preset low threshold voltage and controls the drive circuit to output a pull-down drive signal to turn off the synchronous rectification transistor when the drain-source voltage is higher than or equal to a preset high threshold voltage; a voltage regulation control circuit controls the drive circuit to output a drive signal for pulling up a voltage of the drive signal to a preset pull-up voltage high value when the drain-source voltage is lower than a preset voltage regulation reference value.
Owner:JOULWATT TECH INC LTD
Electronic cigarette device
InactiveCN104921308AIncrease effective lengthAvoid direct connectionTobacco devicesMouth mucosaEffective length
An electronic cigarette device comprises a cigarette holder, a cigarette holder base, a smoke passage located at the rear of the cigarette holder base, an atomizing core located in the smoke passage, and a buffer module disposed between the cigarette holder base and the smoke passage. A cavity is formed between the buffer module and the cigarette holder base. A buffer smoke passage is further arranged in the cavity. The buffer smoke passage is located between the cigarette holder and the smoke passage. The cigarette holder is not linearly communicated with the smoke passage in the straight direction by the buffer smoke passage. The electronic cigarette device has the advantages that the smoke passage is prevented from being directly communicated with the cigarette holder, tobacco tar is prevented from entering the oral cavity, the effective length of the smoke passage is increased relatively, the contact area of smoke and the smoke passage is increased, smoke temperature is lowered favorably, the mouth mucosa and respiratory tract are prevented from being burnt by the smoke, explosion sound is reduced, and user experience is enhanced.
Owner:王国栋
Method for automatically converting electromagnetism transient models and element pictures from PSCAD (power system computer aided design) to ADPSS (advanced digital power system simulator)
ActiveCN104699907AAvoid the disadvantages of making mistakes hard to checkImprove efficiencySpecial data processing applicationsTransient stateComputer Aided Design
The invention provides a method for automatically converting electromagnetism transient models and element pictures from a PSCAD (power system computer aided design) to an ADPSS (advanced digital power system simulator). The method comprises the following steps of determining coordinates of endpoints of elements; performing topology analysis to determine a connection relation between the elements; automatically generating an electromagnetism transient model of the ADPSS; and forming an intermediate file of the ADPSS. By the method for automatically converting the electromagnetism transient models and the element pictures from the PSCAD to the ADPSS, the existing data files of which the format is PSCAD are directly converted into intermediate data files of a simulation procedure of the ADPSS, and the purpose of efficiently and accurately simulating and analyzing a large-scale alternating-current and direct-current power system is achieved.
Owner:STATE GRID CORP OF CHINA +2
Cell culture equipment
PendingCN108913602AAchieve isolationGuaranteed sterilityBioreactor/fermenter combinationsBiological substance pretreatmentsLiquid ChangeAir filtration
The invention discloses cell culture equipment, and belongs to the technical field of biomedical cell culture. The cell culture equipment mainly comprises a sample injection chamber, a culture chamberand a motor chamber, and specifically comprises a culture dish conveying device, a culture dish-cover separation and closing device, a liquid changing device, an air filtering system, a disinfectingheating device, an automatic control system and a culture dish. According to the present invention, with the cell culture equipment, the isolation between the culture chamber and the outside world isachieved, the culture condition of the cells in the culture dish can be real-timely observed or shot and recorded, the automatic replacement of the culture liquid is achieved, and the gas in the culture dish and the gas in the culture chamber can be freely and smoothly exchanged while the water in the culture dish cannot be removed from the culture dish by evaporation. In the prior art, the pollution in the incubator is easily caused during the taking and placing of the culture dish, the manual adding or replacing of the culture liquid is cumbersome in the operation and easily causes the liquid changing error or the culture liquid pollution, and the growth condition of the cells in the culture dish is inconveniently observed. With the cell culture equipment of the present invention, the problems in the prior art can be solved.
Owner:山西正一康生物科技有限公司
Electric vehicle for hunting
InactiveCN101209653AAvoid connectionAvoid direct connectionResilient suspensionsVehicle frameElectric vehicle
The invention provides an electric hunting vehicle. The bottom of the vehicle body is provided with a frame which is connected with an auxiliary frame which is provided with a suspension damping system which consists of a damping system left component which comprises a left upper swing arm, a left lower swing arm, a left damper and a left stanchion, a damping system middle component which comprises the auxiliary frame, an upper swing arm bracket, a lower swing arm bracket and a transverse rod, and a damping system right component which comprises a right upper swing arm, a right lower swing arm, a right damper and a right stanchion; all components are hinged movably. The damping system leads the hunting vehicle to move stably on rugged mountainous landform, effectively avoids the rupture of vehicle bridges caused by sharp vibration, and has obvious damping effect. Furthermore, the damping system has small volume and easy installation and increases the service life of the hunting vehicle.
Owner:深圳市海龙威马电动车有限公司
On-line enrichment-substep focus sample introduction-ultra-high performance liquid chromatography combination system and application
ActiveCN103134889ARealize online useStrong spectral peak compression abilityComponent separationPhysical chemistryAssay sensitivity
The invention discloses a substep focus sample introduction-ultra-high performance liquid chromatography combination system and a combination method thereof and an on-line enrichment-substep focus sample introduction-ultra-high performance liquid chromatography combination system and a combination method thereof. The enrichment-substep focus sample introduction-ultra-high performance liquid chromatography combination system comprises on-line enrichment devices, a substep focus sample introduction device and an ultra-high performance liquid chromatography device, wherein every two on-line enrichment devices are connected mutually. The problems that the overloaded volume of the ultra-high performance liquid chromatography is caused by eluant can be solved through a strategy of the substep focus sample introduction. An on-line combination analysis of an enrichment method and the ultra-high performance liquid chromatography can be achieved. Under the premise of obtaining sharpened bands, the on-line enrichment and a rapid separating analysis can be carried out, and analytical sensitivity, speeds and automation degrees can be improved.
Owner:SUN YAT SEN UNIV
Structure and method for conductive connection between copper materials or between copper material and other components
InactiveCN102738600AFully contactedClosely connectedLine/current collector detailsClamped/spring connectionsState of artWave shape
The invention relates to a connection technology between copper materials or between a copper material and other components, in particular to a structure and method for conductive connection between copper materials or between a copper material and other components. A multi-layer copper foil flexible connection structure is connected between the copper materials or between the copper material and other components, the copper foil flexible connection structure is a multi-layer structure formed by superposing wave-shaped or snake-shaped or unfolded spiral copper foil strips, the middle wave-shaped or snake-shaped or unfolded spiral copper foil strips are in a free layering state, and two ends of the wave-shaped or snake-shaped or unfolded spiral copper foil strips of the multi-layer structure are directly connected to the copper materials or other components. The structure and method for conductive connection disclosed by the invention solve the problems of unsatisfactory conductive performance, low reliability and the like of the prior art, the copper foil flexible connection which has a simple structure and high reliability and is convenient to maintain is adopted, and the conductive connection structure not only has a good conductive performance, but also has good heat compensation ability and a vibration isolation effect.
Owner:江西九星铜业有限公司
Improved charging pile for electric vehicles
InactiveCN108471017AAvoid enteringExtended service lifeVehicle connectorsCharging stationsEngineeringElectric vehicle
The invention discloses an improved charging pile for electric vehicles. The improved charging pile comprises a charging pile body and a charging gun connected to the charging pile body in a pluggingmatching manner, wherein a plugging cavity is formed in the left side end surface of the charging pile body, a power connection block is fixedly arranged on the right inner wall of the plugging cavity, first sliding slots are symmetrically formed in the upper and lower inner walls of the plugging cavity, stopping blocks are mounted in the first sliding slots in the sliding fit manner, first guiding and sliding slots are symmetrically are formed in the left and right inner walls of each first sliding slot, first guiding and sliding blocks fixedly connected with the stopping blocks are mounted in the first guiding and sliding slots in a sliding fit manner, a first ejection spring is connected to one side, away from the plugging cavity, of each first guiding and sliding block in an ejection manner, and the tail end of one side, away from the plugging cavity, of each sliding slot extends rightwards to form a second sliding slot.
Owner:江苏卓燃高新科技有限公司
Database access method and database access system based on cloud calculation
InactiveCN104090937AAchieve platform independenceHigh portabilitySpecial data processing applicationsCloud computingSQL
The invention discloses a database access method and a database access system based on cloud calculation. The database access method based on cloud calculation comprises the following steps of: receiving the database access request sent by a cloud user; matching database metadata carried in the database access request with the metadata of each database in a cloud system, and determining the database to be accessed according to the database access request; analyzing the database access request to obtain an SQL statement; executing the SQL statement on the current database connection of the user to obtain an execution result; converting the execution result to the data format used by the cloud user and then feeding back to the cloud user.
Owner:陆冬艳
Improved charging pile for electric vehicles
InactiveCN108471018AAvoid enteringExtended service lifeVehicle connectorsCharging stationsElectric vehicleElectrical and Electronics engineering
The invention discloses an improved charging pile for electric vehicles. The improved charging pile comprises a charging pile body and a charging gun connected to the charging pile body in a pluggingmatching manner, wherein a plugging cavity is formed in the left side end surface of the charging pile body, a power connection block is fixedly arranged on the right inner wall of the plugging cavity, first sliding slots are symmetrically formed in the upper and lower inner walls of the plugging cavity, stopping blocks are mounted in the first sliding slots in the sliding fit manner, first guiding and sliding slots are symmetrically are formed in the left and right inner walls of each first sliding slot, first guiding and sliding blocks fixedly connected with the stopping blocks are mounted in the first guiding and sliding slots in a sliding fit manner, a first ejection spring is connected to one side, away from the plugging cavity, of each first guiding and sliding block in an ejection manner, and the tail end of one side, away from the plugging cavity, of each sliding slot extends rightwards to form a second sliding slot.
Owner:江苏卓燃高新科技有限公司
Decoupling capacitor and integrated circuit provided with same
ActiveCN103247697ALimit the maximum currentAvoid direct connectionSemiconductor devicesCapacitanceIntegrated circuit layout
The application provides a decoupling capacitor, which comprises a decoupling capacitor body and resistor connected with a gate electrode of an MOS transistor, wherein the decoupling capacitor body adopts the MOS transistor. The application further provides a integrated circuit, which comprises the decoupling capacitor comprising an NMOS transistor and a PMOS transistor, wherein a drain of the PMOS transistor is connected onto a gate electrode of the NMOS; a drain of the NMOS transistor is connected onto a gate electrode of the PMOS transistor; and the source voltage of the PMOS transistor is higher than that of the NMOS transistor. The decoupling capacitor and the integrated circuit provided with the decoupling capacitor can increase the ESD protection capability.
Owner:GIGADEVICE SEMICON (BEIJING) INC
Pile foundation pile head concrete pre-stripping assembly and construction method
The invention provides a pile foundation pile head concrete pre-stripping assembly and a construction method. The assembly comprises a pre-embedded isolation component, a pre-embedded splitting component, splitting equipment and hoisting equipment. The pre-embedded isolation component comprises main reinforcement sleeves and acoustic testing pipe sleeves. The preembedded splitting component comprises a set of horizontal splitting pipes pre-embedded on a fracture surface. The splitting equipment comprises hydraulic splitting machines. The hydraulic splitting machines are inserted into the horizontal splitting pipes from the two sides to conduct splitting to form the fracture surface during breaking and stripping. The hoisting equipment comprises a lifting tool, a lifting hook and a steel wire rope. The steel wire rope penetrates through the split and broken horizontal splitting pipes and is connected with the lifting hook, so that pile head concrete is stripped off from reinforcements and acoustic testing pipes. The pile foundation pile head concrete pre-stripping assembly can be made of engineering leftover materials and is low in cost. During construction, the fracture surface is formed through the hydraulic splitting machines, and then the pile head concrete can be broken and stripped off. The process can be completed only by one person. The hydraulic splitting machines can provide smooth pile head connecting surfaces to facilitate later pile foundation detection and follow-up construction. The pile foundation pile head concrete pre-stripping assembly is easy to operate, low in technical requirement, good in breaking and stripping effect and high in efficiency.
Owner:北京城建七建设工程有限公司
Distributed transaction processing method, proxy connection pool, system, equipment and medium
ActiveCN113268471AEasy to initiateEasy to manageDatabase distribution/replicationSpecial data processing applicationsTransaction managementConnection pool
The invention relates to a distributed transaction processing method, a proxy connection pool, a system, equipment and a medium. The method comprises the following steps: receiving a transaction operation request from a transaction execution node; under the condition that the transaction operation request is received, connecting to a database corresponding to the transaction execution node based on a pre-created proxy object to perform corresponding operation; receiving a transaction submission request from the transaction execution node; under the condition that a transaction submission request is received, analyzing the database operation implemented by the proxy object, so that the transaction execution node submits transaction feedback information to a transaction management node according to the analyzed database operation; receiving a notification from the transaction management node; and under the condition that submission auditing information notified by the transaction management node is received, according to the submission auditing information, determining the submission auditing information according to the transaction feedback information, submitting the global transaction operation to the database or the global transaction operation is rolled back.
Owner:JINGDONG TECH HLDG CO LTD
Battery management device and battery box comprising same
ActiveCN106654414AAvoid direct connectionCoupling device detailsCell component detailsManagement unitLow voltage
The invention discloses a battery management device and a battery box comprising the same, relates to the field of a battery, and aims to provide a battery management device which can be used for rapidly separating a battery management unit from a low-voltage harness and rapidly combining the battery management unit and the low-voltage harness. The battery management device comprises the battery management unit, a low-voltage interface and a connection board, wherein the connection board is used for connecting with the low-voltage harness, and the low-voltage interface is fixedly connected with the battery management unit and can be abutted with and separated from the connection board. The battery box comprises a box body, an opening and the battery management device, wherein the battery management device is arranged in the box body, the opening is arranged on the box body in a mode that the opening is right opposite to the battery management unit, and the battery management unit can be allowed to move in or out of the box body.
Owner:JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
Isolation type battery power supply scheme
ActiveCN104953701AAvoid the risk of electric shockAchieve isolationElectrical testingApparatus with intermediate ac conversionTransformerElectrical battery
The invention provides an isolation type battery power supply scheme. A lithium battery, a resistor R1, a capacitor C1, a flyback isolation power supply chip, a transformer, an enable circuit, a clock power circuit and an alternating current mains supply circuit are adopted in the scheme. The scheme is characterized in that under the alternating current supply condition, the working voltage of the clock power circuit is provided by the alternating current mains supply circuit while the lithium battery only provides quiescent current for the flyback isolation power supply chip; under the alternating current outage condition, the lithium battery is used as a standby power supply by a system and provides the working voltage for the clock power circuit. Meanwhile, the power supply scheme has a lithium battery capacity detection function and sends out a battery replacement notice when the battery capacity is lower. With the adoption of the scheme, a lithium battery power supply system and a circuit of an alternating current mains supply system are isolated, that is, battery replacement electric shock hazards due to the fact that the battery power supply system is common-grounded with the alternating current mains supply system are avoided, and impact damage caused by direct connection of the battery with an MCU (micro controller unit) to MCU pins is also effectively avoided.
Owner:QINGDAO TOPSCOMM COMM
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