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Mimicry defense system based on certificate identity authentication and certificate issuing method
ActiveCN111010410AResist attackWork in timeUser identity/authority verificationInternet privacyAttack
The invention discloses a mimicry defense system based on certificate identity authentication and a certificate issuing method. The system is applied to the technical field of network security, and comprises bottom-layer equipment, an intermediate controller and a certificate issuing center, the intermediate controller and the certificate issuing center are respectively provided with a unique certificate, a public key and a corresponding private key of the certificate are stored in the certificate, and the corresponding private key is stored privately by each piece of equipment and is not disclosed to the outside; according to the method, a device sends a certificate request file to an intermediate controller, the intermediate controller applies for a certificate to a certificate issuing center after verifying the identity, the certificate issuing center issues the certificate and sends the certificate to an underlying device through the intermediate controller, and the underlying device installs the certificate. The intermediate controller of the mimicry structure can effectively resist attacks of attackers, meanwhile, when the judgment module works, if the output results of the heterogeneous executors are inconsistent, whether the heterogeneous executors are attacked can be judged in time, and the system can be maintained in time.
Owner:NANJING REDMATRIX NETWORK SECURITY TECH R & D INST
A linkage processing method and device
InactiveCN101217420AWork in timeError preventionNetwork connectionsDistributed computingAccess network
The invention discloses a linkage processing method which comprises the following steps: checking a port of gateway equipment in connection with an outer data network and deciding linkage action according to the checking result of the port when the port has faults; executing corresponding linkage action for the accessing request of users. The invention discloses a gateway equipment with a gateway which can retransmit the inquiries from the accessing network to a backup gateway equipment or refuse inquiries through a pre-arranged communicating relation when the port of the gateway equipment in connection with the outer data network in order to ensure that the redundant backup mechanism works normally in time.
Owner:HUAWEI TECH CO LTD
Silicone oil fan clutch with controllable separation speed
ActiveCN104632929AIncrease separation speedSmooth meshingCoolant flow controlMachines/enginesSeparated stateDrive shaft
The invention relates to a silicone oil fan clutch with controllable separation speed. The silicone oil fan clutch with controllable separation speed comprises a sealed bearing, a shell arranged on an outer ring of the sealed bearing and a driving shaft arranged on the inner ring of the sealed bearing. A driving disc is arranged on the driving shaft, the driving disk is arranged in the shell, and an oil storage cavity is formed in the shell. An oil-guiding groove is formed in an outer cylindrical surface of the driving disc, and a raised rib strip is also arranged on the outer cylindrical surface of the driving disc. The silicone oil fan clutch with controllable separation speed provided by the invention has the advantages that a raised rib strip is further arranged on the outer cylindrical surface of the driving disc, when the silicone oil fan clutch transforms from a meshed mode into a separated mode, the rib strip can guide a fraction of silicone oil into a clearance between the outer cylindrical surface of the driving disc and the shell from a clearance between the upper portion of the driving disc and the shell, an oil pressure zone with certain pressure is formed on one side of the rib strip, the additional transmission function is generated in this way, and the separation speed of the silicone oil fan clutch is improved.
Owner:XUELONG GRP
Medium-voltage power distribution network fault monitoring device
InactiveCN102914725ALow costEasy to implementCurrent/voltage measurementFault locationInformation processingInstrument transformer
The invention discloses a medium-voltage power distribution network fault monitoring device. The medium-voltage power distribution network fault monitoring device comprises an information acquisition system and an information processing terminal, and also comprises an information processing terminal and / or a handheld terminal, wherein the information acquisition system comprises a zero sequence CT, a short circuit CT module, a zero sequence current monitoring module, a short circuit current monitoring module, a micro controller unit (MCU) and a first communication module. According to the medium-voltage power distribution network fault monitoring device, a zero sequence voltage transformer does not need to be connected in, a zero sequence current transformer is directly used for monitoring a single-phase grounding fault, zero sequence current can be calculated and processed by combining the information processing terminal, and a place where the fault occurs can be positioned. The device is low in cost, simple in implementation manner, accurate and convenient. Besides, power can be acquired directly from a power distribution cable without connecting another power supply unit, so that the device can operate stably and timely. The medium-voltage power distribution network fault monitoring device with the excellent performance can be widely applied to a medium-voltage power distribution network.
Owner:广州拓威讯科技发展有限公司
Laser switching-off system with high damage resistance
ActiveCN104280878AEliminate instabilitySimple and flexible structureLaser cooling arrangementsOptical elementsOptical pathHollow cylinder
The invention discloses a laser switching-off system with high damage resistance. The system comprises a deflection control system, a mirror and an absorber located on the optical path of the mirror, wherein the deflection control system controls the mirror to move in or out of a laser optical path in a rotary mode, the absorber is of a hollow cylinder structure, one end of the absorber is closed, the other end of the absorber is a laser inlet end, a protruding cone is arranged at the bottom end of the interior of the closed end, a light beam divergence element is fixed to the laser inlet end to enable inlet laser to be diverged in advance, a cooler is formed by the surface of the light beam divergence element, the inner side wall of the hollow cylinder body and the surface of the cone, and cooling water is injected into the cooler to cool the light beam divergence element, the inner side wall of the hollow cylinder body and the surface of the cone.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Harmlessness removal apparatus for harmful gas in city sewage pipeline
ActiveCN104492238ASimple structureEasy to assembleSewerage structuresDispersed particle separationMunicipal sewageProcess engineering
The invention discloses a harmlessness removal apparatus for harmful gas in city sewage pipeline, which comprises an air exhaust apparatus in an inspection well, the air exhaust apparatus extracts harmful gas in the inspection well, and is introduced to gas processing equipment arranged at port of the inspection well through an airduct, the gas processing equipment comprises a filtering apparatus and an adsorption apparatus, harmful gas passes through the filtering apparatus and the adsorption apparatus for processing harmful gas in order, and the processed gas is discharged in atmosphere. The harmlessness removal apparatus can be used for fast assembly and installation in the inspection well, and is capable of performing rapid and effective elimination as well as harmlessness processing on harmful gas in the well, land occupation of whole apparatus is little, the harmlessness removal apparatus has less influence on public transport, and work efficiency under well can be ensured.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Flood breach plugging device for dam and plugging method thereof
InactiveCN108104058AReduce the difficulty of buildingReduce lossesDamsClimate change adaptationEngineeringUltimate tensile strength
The invention provides a flood breach plugging device for a dam and a plugging method thereof and relates to the field of building members, mechanism members and hydro science. The flood breach plugging device comprises stressed securing piles arranged above dams on two sides of a breach, a supporting rope and a throwing rope, two ends of which are fixed to the stressed securing piles, a tensionerfor tensioning the supporting rope and the throwing rope and a water baffle queue placed above the supporting rope and the throwing rope; the water baffles comprise a plurality of parallelly arrangedlight prefabricated water baffles which are connected in series by a serializer, and one ends of the bottoms of the light prefabricated water baffles are movably connected to the supporting rope while the other end of the bottom of the light water baffle queue is directly placed on the throwing rope. Meanwhile, the invention provides the plugging method of the flood breach plugging device for thedam. The device and method provided by the invention solve the problems that according to an existing plugging technology of the flood breach of the dam, the manpower and material costs are high, theplugging time is long, the labor intensity is great and the safety risk of rescue personnel is great.
Owner:耿飞
Over-travel protector for winding engine
Owner:徐州海华电气有限公司
Single-cylinder diesel engine
The invention discloses a single-cylinder diesel engine which is novel in structure. The single-cylinder diesel engine comprises a base, a cylinder body arranged on the base, an oil tank and a water tank. A cylinder cover matched with the cylinder body is arranged on the cylinder body. A cylinder sleeve is fixedly arranged in the cylinder body through screws. A piston is arranged in the cylinder sleeve in a sliding mode. The lower end of the piston is connected with a crank mechanism through a connecting rod, wherein the crank mechanism is arranged inside the lower end of the cylinder body. A cylinder gasket is arranged between the cylinder sleeve and the cylinder cover. A cooling water cavity is formed between the middle of the cylinder sleeve and the cylinder body and communicated with the water tank through a connecting pipe. A plurality of annular reinforcing ribs are arranged on the cylinder sleeve in the cooling water cavity. A guiding base, a sliding rod, a buoy and a floater are all arranged in a buoy cavity. A cover is arranged at a water adding opening. A plurality of ventilation holes are evenly formed in the cover.
Owner:JIANGYU JIANGSU POWER MACHINERY LIMITED
Intelligent geographic information measuring and drawing system
ActiveCN112197753AFreedom of movementGuaranteed stabilityPhotogrammetry/videogrammetrySurveying instrumentsTerrainLandform
The invention provides an intelligent geographic information measuring and drawing system. The geographic information measuring and drawing system comprises an all-terrain moving chassis, a supportingplatform, a lifting type ground environment reconnaissance device and a high-altitude geographic environment monitoring device, a power supply system and a hydraulic station are arranged on the all-terrain moving chassis, and the supporting platform is erected above the all-terrain moving chassis through a plurality of supporting columns. The lifting type ground environment reconnaissance deviceand the high-altitude geographical environment monitoring device are both installed on the supporting platform. The power supply system supplies power to the whole system, and the hydraulic station supplies hydraulic power to the whole system. According to the invention, the surrounding environment can be automatically and accurately plotted, high-altitude accurate plotting can be carried out by using a high-altitude geographical environment monitoring device plotting system of the system, the operation is simple, the use is convenient, the mechanical structure design is reliable, and the manual labor operation is reduced in the whole process.
Owner:WUHAN SURVEYING GEOTECHN RES INST OF MCC
Faucet module for sterilization faucet and sterilization faucet provided with faucet module
The invention discloses a faucet module for a sterilization faucet and the sterilization faucet provided with the faucet module. The faucet module for the sterilization faucet comprises a valve body, a valve element assembly and a drive assembly. A water inflow channel is formed in the valve body and a microswitch is arranged on the valve body. The valve element assembly is arranged on the valve body in the manner that the valve element assembly can be switched between a state of closing the water inflow channel and a state of opening the water inflow channel. The drive assembly is connected with the valve element assembly and used for driving the valve element assembly to open or close the water inflow channel and when the water inflow channel is opened through the valve element assembly, the microswitch is triggered through the drive assembly. By the adoption of the faucet module for the sterilization faucet disclosed by the embodiment of the invention, faucet opening or closing information can be fed back.
Owner:FOSHAN MIDEA CHUNGHO WATER PURIFICATION MFG +1
High-activity metal powder anti-oxidation drying device and method
ActiveCN113513884APrevent oxidationImprove performanceDrying solid materials without heatDrying gas arrangementsPhysical chemistryHigh activity
The invention relates to the technical field of metal powder drying, and provides a high-activity metal powder anti-oxidation drying device and method. The drying device comprises a drying box, an inert gas supply component, an evacuation component and a liquid level monitoring component, wherein a heater, a material tray, a thermometer and a vacuum gage are arranged in the drying box; the inert gas supply component is used for filling inert gas into the drying box; the evacuation component is used for evacuating the drying box body; and the liquid level monitoring component is used for collecting absolute ethyl alcohol and monitoring the liquid level height change of the absolute ethyl alcohol. The inert gas supply component and the evacuation component are matched with each other, so that the situation that high-activity metal powder is oxidized due to residual oxygen can be avoided; the heater and the thermometer are used for realizing constant-temperature heating and shortening the drying time; and absolute ethyl alcohol can be collected and the liquid level can be monitored through the liquid level monitoring component, so that it is ensured that work can be stopped in time after absolute ethyl alcohol is completely evaporated, the drying time is shortened, the labor cost is reduced, and the drying efficiency is improved.
Owner:CENT SOUTH UNIV
Condensation sensor, condensation detection device prepared by using the condensation sensor, and detection method
ActiveCN110554070AImprove detection accuracyReduce false alarm rateMaterial analysis by electric/magnetic meansParticle size analysisElectrical resistance and conductanceElectricity
The invention belongs to the technical field of sensors, and particularly relates to a condensation sensor, a condensation detection device prepared by using the condensation sensor, and a detection method. The condensation sensor comprises a detection electrode pair, wherein the detection electrode pair is composed of a first electrode set and a second electrode set, the first electrode set and the second electrode set comprise a plurality of parallel electrodes arranged in a comb tooth shape, the parallel electrodes in the first electrode set and the second electrode set are arranged in a staggered mode, the adjacent parallel electrodes are arranged at equal intervals, and the interval is smaller than 2 mm. The first electrode set is grounded, and the end part of the second electrode setis connected with a radio frequency transmitting circuit; two detection resistors which are connected in series are electrically connected between the first electrode set and the second electrode set, the middle point of the two detection resistors is used as an output point, and the detection circuit detects the voltage value of the output point and judges the condensation condition of the equipment according to the voltage value. The detection device prepared by using the condensation sensor has the advantages of high precision, a low false alarm rate and high reliability.
Owner:安徽帕维尔智能技术有限公司
Symmetrical track overhead line system detection device and method
The invention belongs to the technical field of track overhead line system detection, and discloses a symmetrical track overhead line system detection device and method. The detection device comprises a movable vehicle body used for moving on a track, a console and a detection unit are installed on the movable vehicle body, the detection unit comprises an infrared laser, an industrial personal computer and two cameras, and the console and the two cameras are respectively connected with the industrial personal computer; the two cameras form a binocular camera group and are symmetrically arranged on the two sides of the infrared laser; a noise removal module, a template matching module, an edge extraction module, a gravity center extraction module and a coordinate conversion module are arranged in the industrial personal computer. The mobile vehicle body is used as a carrier of the detection system, so that continuous detection can be realized; an image processing technology is utilized to calculate a guide height value and a pull-out value of the overhead line system, and the accuracy is at a pixel level and is much higher than that of manual detection; during operation, direct contact with the overhead line system is not needed, the field of view range is wide, the detection precision is high, and the detection efficiency is high.
Owner:CHANGAN UNIV
Shop-type fire-fighting safety monitoring method based on 5G communication
ActiveCN112150070AEasy to checkTimely investigationLogisticsLocation information based serviceEngineeringFire safety
The invention relates to the technical field of fire-fighting monitoring, in particular to a shop-type fire-fighting safety monitoring method based on 5G communication, and the method comprises the steps: obtaining the information of each to-be-monitored shop, wherein the information of each to-be-monitored shop comprises shop position information and goods type information; obtaining shop storageinformation of each piece of to-be-monitored shop information according to the shop position information, and setting a corresponding storage monitoring level for each piece of shop storage information according to the cargo type information; when shop purchase information is obtained, comparing the shop purchase information with the corresponding goods type information to obtain a storage purchase type; and calculating shop inventory information according to the shop storage information and the storage purchase type, and generating a fire control message according to the shop inventory information and the storage monitoring level. The invention has the effect of effectively monitoring fire-fighting conditions of shops.
Owner:广州华安消防有限公司
Alternating current power-down response circuit and electric appliance equipment
ActiveCN107492865AAccurate feedbackWork in timeArrangements responsive to undervoltageElectricityStopped work
Embodiments of the invention disclose an alternating current power-down response circuit and electric appliance equipment. The alternating current power-down response circuit comprises a PFC control module, a large electrolytic module, an LLC control module, an LLC transformer, a power supply module and a power-down response module; the power-down response module is connected with the functional output end of the PFC control module and the LLC control module; the PFC control module is connected with an alternating current power supply; when a pulse signal, which passes through the functional output end of the PFC control module, of the power-down response module is changed and when power down of the alternating current power supply is determined, the LLC control module is controlled to stop working, the LLC transformer is further controlled to stop working, and a control power supply indicator lamp is turned off and does not work, so that the electric appliance equipment can stop working in time and the power down information can be accurately fed back to a user when the alternating current power supply connected with the electric appliance equipment suffers from power down.
Owner:SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
Automatic dispensing machine for modules
InactiveCN108889562AGood stabilityNot easy to shakeLiquid surface applicatorsCoatingsSystem safetyPlunger pump
The invention discloses an automatic dispensing machine for modules. The machine comprises a fence, a clamping sleeve is fixed to the upper end of the fence, and a base, a conveying line and supportsare arranged at the inner side of the fence; a mechanical arm is mounted at the upper end of the base, a dispensing plate is fixed to the output end of the mechanical arm, and glue guns are installedat the lower end of the dispensing plate; glue barrels are connected to the input ends of the glue guns through plunger pumps in sequence, the supports are located at one side of the base, and the glue barrels are installed in the supports in sequence; every two adjacent glue barrels are connected through a penetration mode and a communication pipe, a protection box and a safety door are arrangedat the exterior of the fence, and a handle is installed on the safety door. According to the automatic dispensing machine for the modules, by arranging the fence, the dispensing plate, the glue guns,a CCD correction base, the conveying line, the glue barrels, the communication pipes, an alarm and the plunger pumps, the problems are solved that during use, a dispensing device at this stage is poorin stability and is short of a positioning mechanism, and a glue supply system is poor in safety.
Owner:SHENZHEN NARI TECH
Auxiliary device used for water flow section measurement
InactiveCN113090906AIncrease frictionAvoid shakingOpen water surveyStands/trestlesWater flowFriction force
The invention discloses an auxiliary device used for water flow section measurement, and relates to the technical field of equipment used for water flow section measurement. The auxiliary device used for water flow section measurement comprises a fixing table, wherein a supporting piece is rotatably installed on the edge of the lower end of the fixing table, an air guiding mechanism is arranged at the upper end of the supporting piece, a stabilizing mechanism is fixedly installed at the lower end of the supporting piece, the supporting piece comprises rotating blocks, fixing columns, locking blocks and movable supporting rods, the rotating blocks are rotatably installed on the edge of the lower end of the fixing table through the rotating columns, one corresponding fixing column is fixedly installed at two ends of the bottom of each rotating block, the locking blocks are fixedly installed at the lower ends of the fixing columns, and locking threaded rods are arranged at the right sides of the locking blocks. According to the auxiliary device used for water flow section measurement, the air guiding mechanism matches the stabilizing mechanism, wind power blown to a windward face is dispersed in windy weather, friction force between supporting feet and the ground is increased, and the situation that the supporting feet shake and sink under the action of the wind power, horizontal states of a tripod and equipment are damaged, and the measurement precision is affected is prevented.
Owner:卢圆章
Vehicle door safety opening system based on radar
InactiveCN113389444AOpen controlPrevent open door killingElectric/fluid circuitPassenger lock actuationDriver/operatorRadar
The invention aims to solve the problem of how to prevent door opening from being killed when a vehicle door is opened. A vehicle door safety opening system based on a radar comprises the radar, a door lock a and an actuator, and when the vehicle door is closed, the door lock a locks the vehicle door; and the radar is installed behind a vehicle, detects the rear portion of the vehicle during working, and notifies the actuator to open the door lock a only when the approaching vehicle is not found. The system has the beneficial effects that the door lock a cannot be opened when the radar finds an approaching vehicle, so that door opening killing is effectively prevented; and the actuator can reliably control the door lock a to be opened, and a touch door lock can prevent the door from being quickly opened and can ensure that a vehicle door opening signal can be timely and effectively sent out. In addition, during unmanned driving, a driver cannot supervise passengers to slowly open the door to get off, and the system is more useful at the moment.
Owner:HUNAN UNIV OF SCI & TECH
Customer-oriented power supply service value evaluation method and system
InactiveCN106991523AThe value status of power supply service is knownImprove the quality of serviceResourcesData informationEvaluation system
The invention provides a customer-oriented power supply service value evaluation method and system. The customer-oriented power supply service value evaluation method includes the following steps: constructing multiple customer perception indicators; constructing multiple social influence indicators; obtaining first data information corresponding to each customer perception indicator; obtaining information related to each The second data information corresponding to a social influence indicator; analyzing a plurality of the first data information and a plurality of the second data information according to a preset model. The customer-oriented power supply service value evaluation method and system provided by the present invention solidify the power supply service value evaluation system and working mechanism, establish an efficient monitoring and evaluation working mechanism, ensure service value evaluation and improvement work is efficient, accurate and timely, and realize the company's The value status of power supply service is known, the risk is controllable, and the trend is measurable.
Owner:JIANGSU ELECTRIC POWER CO +1
Method and device for measuring circuit detection of relay protection device
ActiveCN110109038BGuaranteed to workWork in timeElectrical measurementsMulti source dataFault occurrence
The invention discloses a relay protection device measurement loop detecting method and device and belongs to the technical field of power system relay protection. The method includes the following steps that: the multi-source wave recording file of a measurement loop, which is generated when an external fault occurs, is called; a asynchronous multi-source data correlation and time synchronizationare performed on the wave recording waveforms of the multi-source recording file; wave recording waveform data are judged according to a preset rule base, so that the abnormal type of the measurementloop can be determined; an alarm is given out according to the determined abnormal type; and if a new abnormal type appears, a new judgment rule is supplemented to the rule base, so that the rule base can be improved. With the method of the invention adopted, no additional equipment is required, and any additional test does not need to be carried out; by means of communication and expert systems,work can be carried out efficiently and timely without stop, so that the restriction of factors such as personal experience and energy are broken; continuous improvement is carried out in a long-termoperation process, and expansion can be realized; and fusion and analysis of existing multi-source data belong to the deep mining of application functions, and therefore, the intelligence of an operation and maintenance system can be improved.
Owner:EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID
A harmless removal device for harmful gases in urban sewage pipelines
ActiveCN104492238BSimple structureEasy to assembleSewerage structuresDispersed particle separationProcess engineeringMunicipal sewage
The invention discloses a harmlessness removal apparatus for harmful gas in city sewage pipeline, which comprises an air exhaust apparatus in an inspection well, the air exhaust apparatus extracts harmful gas in the inspection well, and is introduced to gas processing equipment arranged at port of the inspection well through an airduct, the gas processing equipment comprises a filtering apparatus and an adsorption apparatus, harmful gas passes through the filtering apparatus and the adsorption apparatus for processing harmful gas in order, and the processed gas is discharged in atmosphere. The harmlessness removal apparatus can be used for fast assembly and installation in the inspection well, and is capable of performing rapid and effective elimination as well as harmlessness processing on harmful gas in the well, land occupation of whole apparatus is little, the harmlessness removal apparatus has less influence on public transport, and work efficiency under well can be ensured.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
A laser shutdown system with high damage resistance
ActiveCN104280878BReduce instabilityStable jobLaser cooling arrangementsOptical elementsControl systemLight beam
The invention discloses a laser switching-off system with high damage resistance. The system comprises a deflection control system, a mirror and an absorber located on the optical path of the mirror, wherein the deflection control system controls the mirror to move in or out of a laser optical path in a rotary mode, the absorber is of a hollow cylinder structure, one end of the absorber is closed, the other end of the absorber is a laser inlet end, a protruding cone is arranged at the bottom end of the interior of the closed end, a light beam divergence element is fixed to the laser inlet end to enable inlet laser to be diverged in advance, a cooler is formed by the surface of the light beam divergence element, the inner side wall of the hollow cylinder body and the surface of the cone, and cooling water is injected into the cooler to cool the light beam divergence element, the inner side wall of the hollow cylinder body and the surface of the cone.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
A Mimic Defense System Based on Certificate Identity Authentication and Certificate Issuing Method
ActiveCN111010410BResist attackWork in timeUser identity/authority verificationInternet privacyAttack
The invention discloses a mimetic defense system based on certificate identity authentication and a certificate issuing method, which are applied in the technical field of network security. The system includes bottom equipment, an intermediate controller, and a certificate issuing center. There is a unique certificate, which stores its own public key, and the corresponding private key is kept privately by each device and is not disclosed to the outside world; in the method described above, the device sends a certificate request file to the intermediate controller, and the intermediate controller issues a certificate to the certificate after verifying its identity. The center applies for a certificate, and the certificate issuing center issues the certificate and sends it to the underlying device through the intermediate controller, and the underlying device installs the certificate. The intermediate controller adopting the mimetic structure of the present invention can effectively resist the attack of the attacker, and at the same time, if the output results of the heterogeneous executives are inconsistent when the judgment module is working, it can also judge in time whether the heterogeneous executives are attacked, and repair the system in time .
Owner:NANJING REDMATRIX NETWORK SECURITY TECH R & D INST
A self-starting in-vehicle host of a tire pressure monitoring system
The invention provides a self-starting type in-car host of a tire pressure monitoring system, which comprises a battery and a host, wherein the host is provided with a display module, a controller, a power management module and a wireless signal receiving and conversion module, and the display module is provided with a display screen; the host is powered by the battery through the power management module, a vibration switch is connected between the battery and the power management module, and the power management module can be triggered to operate by a signal sent by the vibration switch when a car is in the stationary state; and the controller is connected with the power management module and powered by the power management module which is controlled to turn on or off by the controller. The self-starting type in-car host can be powered by a power supply except an in-car power supply and can be automatically triggered to operate before the car is started, so that the in-car host is enabled to operate in time, and the in-car host can be more conveniently operated and maintained.
Owner:HAMATON AUTOMOTIVE TECH CO LTD
A dew condensation sensor and a dew condensation detection device and detection method prepared therefrom
ActiveCN110554070BImprove detection accuracyReduce false alarm rateMaterial analysis by electric/magnetic meansParticle size analysisElectrical connectionHemt circuits
The invention belongs to the technical field of sensors, and in particular relates to a dew condensation sensor and a dew condensation detection device and detection method prepared therefrom. The dew condensation sensor includes a detection electrode pair, the detection electrode pair is composed of a first electrode group and a second electrode group, the first electrode group and the second electrode group include a plurality of parallel electrodes arranged in a comb-like shape, the first electrode group and The parallel electrodes in the second electrode group are staggered, and the adjacent parallel electrodes are arranged at equal intervals, with a spacing of less than 2 mm; the first electrode group is grounded, and the end of the second electrode group is connected to a radio frequency transmitting circuit; the first electrode group Two detection resistors in series are electrically connected with the second electrode group, the middle point of the two detection resistors is used as an output point, the detection circuit detects the voltage value of the output point, and judges the equipment dew condensation according to the voltage value. The detection device prepared by using the dew condensation sensor has the advantages of high precision, low false alarm rate and high reliability.
Owner:安徽帕维尔智能技术有限公司
An intelligent induction parking space control method
ActiveCN104537881BEasy to controlRealize energy-saving controlIndication of parksing free spacesParking spaceEngineering
The invention relates to an intelligent induction type parking stall control method. The brand new control strategy method is designed to improve a present parking stall control and management method. Under the condition that an RF reception module of a parking stall works in real time, work of a satellite positioning and navigation module is timely controlled, work of an RF emission module is timely controlled by combining the average vehicle speed at present, the RF reception module is used for communication, and thus, a light band which is arranged on the ground along the boundary of the parking stall is intelligent controlled. Energy-saving control can be realized, and the problem in parking in a bad light environment can be effectively solved.
Owner:上海荷福人工智能科技(集团)有限公司
A linkage processing method and device
The invention discloses a linkage processing method which comprises the following steps: checking a port of gateway equipment in connection with an outer data network and deciding linkage action according to the checking result of the port when the port has faults; executing corresponding linkage action for the accessing request of users. The invention discloses a gateway equipment with a gatewaywhich can retransmit the inquiries from the accessing network to a backup gateway equipment or refuse inquiries through a pre-arranged communicating relation when the port of the gateway equipment inconnection with the outer data network in order to ensure that the redundant backup mechanism works normally in time.
Owner:HUAWEI TECH CO LTD
A silicon oil fan clutch with controllable separation speed
ActiveCN104632929BIncrease separation speedSmooth meshingCoolant flow controlMachines/enginesSeparated stateDrive shaft
The invention relates to a silicone oil fan clutch with controllable separation speed. The silicone oil fan clutch with controllable separation speed comprises a sealed bearing, a shell arranged on an outer ring of the sealed bearing and a driving shaft arranged on the inner ring of the sealed bearing. A driving disc is arranged on the driving shaft, the driving disk is arranged in the shell, and an oil storage cavity is formed in the shell. An oil-guiding groove is formed in an outer cylindrical surface of the driving disc, and a raised rib strip is also arranged on the outer cylindrical surface of the driving disc. The silicone oil fan clutch with controllable separation speed provided by the invention has the advantages that a raised rib strip is further arranged on the outer cylindrical surface of the driving disc, when the silicone oil fan clutch transforms from a meshed mode into a separated mode, the rib strip can guide a fraction of silicone oil into a clearance between the outer cylindrical surface of the driving disc and the shell from a clearance between the upper portion of the driving disc and the shell, an oil pressure zone with certain pressure is formed on one side of the rib strip, the additional transmission function is generated in this way, and the separation speed of the silicone oil fan clutch is improved.
Owner:XUELONG GRP
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