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40results about How to "Play a backup role" patented technology
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Method and device for controlling mainboard of double CPU system
ActiveCN101714109APlay a backup roleImprove reliabilityRedundant hardware error correctionData informationComputer science
The invention discloses a method and a device for controlling a mainboard of a double CPU system. The method comprises that: when any one CPU system executes functions of data processing, controlling, managing and / or maintaining of a device, the other CPU system acquires data information and state information of the CPU system through an information interacting channel, and the working state of the CUP system is monitored according to the state information; and when any one CPU system discovers the other CPU system is failed, the CPU system replaces the failed CPU system to execute all the functions of the device according to the data information. The method and the device realize redundancy of the CPU system of communication equipment, and the reliability of the communication equipment is improved.
Owner:NEW H3C TECH CO LTD
Plant protection unmanned aerial vehicle with spray-head switching and accurate spraying functions
InactiveCN108583895APlay the role of storage protectionImprove practicalityAircraft componentsSpraying apparatusPropellerAgricultural engineering
The invention relates to a plant protection unmanned aerial vehicle with spray-head switching and accurate spraying functions. The plant protection unmanned aerial vehicle comprises a main body, a propeller, a landing gear, an adjusting mechanism and a switching mechanism, wherein the adjusting mechanism comprises a first motor, a first gear, a second gear, a telescopic frame, a slide block, a lifting plate and two moving units, and the switching mechanism comprises a fixed block, a lifting assembly and a switching assembly. According to the plant protection unmanned aerial vehicle with the spray-head switching and accurate spraying functions, through the adjusting mechanism, spray-heads can be stored and protected, and the influence of wind speed on sprayed pesticides can be reduced, so that the pesticides sprayed by the spray-heads are more concentrated, and the unmanned aerial vehicle can spray conveniently and accurately. Through the switching mechanism, the two spray-heads can becontrolled to switch for spraying work, so that a standby role is played when the unmanned aerial vehicle cannot carry out spraying work after one spray-head is damaged, the working efficiency and spraying effect are prevented from being affected, and the practicability and reliability of the plant protection unmanned aerial vehicle are greatly improved.
Owner:SHENZHEN ANSIKE ELECTRONICS TECH CO LTD
Anti-collision device for ship
PendingCN107816015AEasy dockingEasy to stick outMeasurement devicesClimate change adaptationLaserElectromagnet
The invention discloses an anti-collision device for a ship. The anti-collision device comprises double-acting single piston type oil cylinders and air bag assemblies. The double-acting single pistontype oil cylinders and air bag assemblies are sequentially mounted inside a wall body in an alternate manner. The portion, inside the wall body, of each double-acting single piston type oil cylinder is provided with a rod cavity and a rodless cavity. The end, far away from the wall body, of each double-acting single piston type oil cylinder is fixedly connected with a rubber fender. A first electromagnet is fixedly connected to the surface of the middle of each rubber fender. A laser displacement sensor is arranged on the surface of the middle of each first electromagnet. The portion, inside the wall body, of each air bag assembly is provided with a second electromagnet. A magnet is connected to one end of each second electromagnet in a sliding manner. An air bag is connected to one end ofeach magnet in a communicating manner. According to the anti-collision device for the ship, by means of the double-acting single piston type oil cylinders and the air bag assemblies, economic lossescaused by collision can be avoided, and high application value is achieved.
Owner:泰兴市汇辰过滤器制造有限公司
Optical current sensor and high-frequency signal measurement system
ActiveCN103424607AImprove insulation performanceImprove interferenceVoltage/current isolationMeasurement using digital techniquesMetallic materialsCurrent sensor
The invention relates to an optical current sensor and a high-frequency signal measurement system. The optical current sensor comprises an optical sensing part, a polarization maintaining fiber, an insulator and a demodulation module. The optical sensing part, the polarization maintaining fiber and the demodulation module are connected in sequence. The optical sensing part is supported by the insulator. The polarization maintaining fiber locates in an inner cavity of the insulator. The optical sensing part comprises a first sensing fiber ring, a second sensing fiber ring, a first wave plate, a first reflector, a second wave plate, a second reflector and a support, wherein the first wave plate, the first reflector, the second wave plate, the second reflector and the support are all made of nonmetal material. The first sensing fiber ring and the second sensing fiber ring are opposite in current direction. The demodulation module outputs two linearly-polarized beams passing the polarization maintaining fiber and the optical sensing part, the linearly-polarized beams carrying measured current information are returned and received by the polarization maintaining fiber, the beams are operated on the basis of differential induction, and measured current is obtained. The optical current sensor is capable of measuring high-frequency signals, and measurement is higher in accuracy and reliability.
Owner:山东曜德电气有限公司
Radio-frequency autonomous relative attitude measurement system applied between cluster objects
ActiveCN104407326AEasy to distinguishAvoid complex timing controlPosition fixationObservation dataRadio frequency
The invention relates to a radio-frequency autonomous relative attitude measurement system applied between cluster objects. The system comprises two sets of relative attitude measurement devices with identical structures. Each set of devices include two transmitting antennas, three receiving antennas, two radio-frequency transmitting channels, three radio-frequency receiving channels, an auxiliary radio-frequency receiving channel, two dual-mode auxiliary radio-frequency channels, a baseband processing module, and a high-stability time-based module. The two sets of relative attitude measurement devices respectively receive and sending ranging signals, so that relative attitude measurement of a master member and a slave member can be completed without the need to use observation data provided by other cluster members. Therefore, when parts of members in the target cluster become valid, the relative attitude measurement function can still be provided normally. In addition, with the system, the real-time performance of whole-cycle calculation as well as the real-time performance and operation flexibility of the equipment can be improved.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH
Universal replaceable charge indicator
ActiveCN104251931AWork reliablyReliable lockingCurrent/voltage measurementEngineeringPrinted circuit board
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
Intelligent comprehensive management system of electric vehicle
InactiveCN104637336AImplement storageRealize reading and writingTicket-issuing apparatusRoad vehicles traffic controlGeneral Packet Radio ServiceEngineering
The invention discloses an intelligent comprehensive management system of an electric vehicle. The system comprises a core control device CPU (Central Processing Unit) of the entire equipment, wherein the CPU is used as the center and is connected with a big dipper GPS (Global Positioning System) dual-mode module, a GSM / GPRS (Global System for Mobile Communications / General Packet Radio Service) module, a Bluetooth circuit, an NFC (Near Field Communication) circuit, a storage module, a switch quantity input and output module and a power management module. By using the system, storage, read and write of user information and vehicle running information can be realized; vehicle information and owner information in the equipment can be read by the traffic management department by using intelligent mobile phones or other portable equipment through a near field communication mode and can respond to an owner to facilitate the law enforcement and management of a vehicle.
Owner:罗向娜
System for treating and recycling tail water in aquaculture process
PendingCN107253803AImprove filtering effectImprove reuse speedSpecific water treatment objectivesWaste water treatment from animal husbandrySewageAquaculture
The invention discloses a system for treating and recycling tail water in the aquaculture process. The system comprises an aquaculture pool, a sewage pool, a remedying pool, a pebble filter pool, an ecological pool, a water conveying pipe and a water pump, wherein a water inlet and a water outlet are formed in each of the aquaculture pool, the sewage pool, the remedying pool, the pebble filter pool and the ecological pool; the water outlet of the aquaculture pool is connected with the water inlet of the sewage pool; the water outlet of the sewage pool is connected with the water inlet of the remedying pool; the water outlet of the remedying pool is connected with the water inlet of the pebble filter pool; the water outlet of the pebble filter pool is connected with the water inlet of the ecological pool; the water outlet of the ecological pool is connected with the water inlet of the aquaculture pool through the water conveying pipe; the water pump is arranged on the water conveying pipe; water purifying plants are planted in the remedying pool, and a bacillus dispensing device is provided. The tail water produced in the aquaculture pool is treated by the sewage pool, the remedying pool, the pebble filter pool and the ecological pool, and then returns to the aquaculture pool for recycling, so that the recycling of the tail water is achieved.
Owner:CHANGXING LONGQING SPECIAL AQUACULTURE
Screw bolt type continuous lifting system and screw bolt type continuous lifting method for offshore platform
ActiveCN108529514AImprove carrying capacityEvenly distributedLifting devicesEngineeringIndustrial engineering
The invention discloses a screw bolt type continuous lifting system and a screw bolt type continuous lifting method for an offshore platform. The screw bolt type continuous lifting system comprises apile fixing chamber, a pile leg and a lifting unit, wherein the lifting unit comprises a first lifting device, a second lifting device, a third lifting device and a fourth lifting device; the first lifting device and the third lifting device are respectively arranged in two opposite first guide grooves of the pile fixing chamber; the second lifting device and the fourth lifting device are respectively arranged in another two opposite guide grooves of the pile fixing chamber. According to the screw bolt type continuous lifting system for the offshore platform, screw type lifting is realized byadopting the first lifting device, the second lifting device, the third lifting device and the fourth lifting device of which maximum stroke is sequentially reduced; the distribution of pin holes in four lines of pin hole groups of the pile leg is consistent; the pile leg is simpler and general in processing; the first lifting device, the second lifting device, the third lifting device and the fourth lifting device are arranged on the same horizontal plane, so that higher accuracy and reliability in control are realized.
Owner:KEEN OFFSHORE ENG CO LTD
Overhauling device and method for large multi-tube dust remover
ActiveCN111693232APlay a backup roleEasy to detectHuman health protectionFluid-tightness measurement using lightGear wheelDust control
The invention discloses an overhauling device and method for a large multi-tube dust remover, which comprises a moving trolley, wherein a support plate is fixedly connected to the middle position of the moving trolley, lifting air cylinders are symmetrically connected to the moving trolleys on the two sides of the support plate, the upper ends of the lifting air cylinders are connected with a fixed top plate, connecting columns are connected to the lower surface of the fixed top plate at equal intervals, movable blocks are fixedly connected to the lower ends of the connecting columns, and limiting rings are connected to the upper ends and the lower ends of the movable blocks. According to the overhauling device and method for the large multi-tube dust remover, the connecting columns, the movable blocks and a plugging block are mounted through the fixed top plate, the lifting air cylinders drive the fixed top plate to move up and down, so that the plugging block is controlled to conductpartial plugging detection on the dust removal pipeline, the plugging block is tightly attached to the dust removal pipeline through an extrusion spring, and the detection effect is improved. The support plate is arranged, an illuminating lamp and a camera are installed on one side of the lower surface of a driven gear, and maintenance is achieved under the non-stop condition.
Owner:ANHUI HANSHAN COUNTY TIANSHUN ENVIRONMENTAL PROTECTION EQUIP
Singe-stage radial turbine power generating system capable of balancing axial force through air bearing
PendingCN111305912AImprove bearing capacityPlay a backup roleMachines/enginesEngine componentsAir bearingEngineering
The invention discloses a singe-stage radial turbine power generating system capable of balancing axial force through an air bearing. The singe-stage radial turbine power generating system comprises arotating shaft, the air bearing, a high-speed permanent magnet power generator and a radial turbine. The high-speed permanent magnet power generator and the radial turbine are connected with the rotating shaft. The air bearing is arranged outside the rotating shaft. The air bearing comprises a balancing plate, a bearing shell, an air bearing wall and a balancing air wall. The balancing plate sleeves the rotating shaft. The bearing shell is arranged outside the rotating shaft and the balancing plate. The air bearing wall and the balancing air wall are arranged on the inner wall of the bearingshell. The air bearing wall faces the rotating shaft. The balancing air wall faces the balancing plate. An air passageway is formed in the bearing shell and communicates with the air bearing wall andthe balancing air wall. The bearing shell is provided with an exhaust hole. The air bearing can balance the axial force in the high-speed-operating turbine power generating system, and the system canreach the high rotating speed and is high in power generating efficiency, simple in structure, light and flexible.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD
Network backup device and network system with same
ActiveCN103684845ASimple structurePlay a backup roleData switching networksNetworked systemEngineering
Provided are a network backup device and a network system with the same. According to an embodiment, the network backup device includes a first connector configured to connect with one or more ports of a first network equipment, a second connector configured to connect with one or more second network equipment, a third connector configured to connect with a third network equipment, a switching module configured to aggregate data transmitted from the second connector, transfer the aggregated data to the third connector, and distribute data transmitted from the third connector to the second connector, and a switch configured to, in response to a fault occurring in a port of the first network equipment, switch from a connection between the second connector and the faulty port of the first network equipment to a connection between the second connector and the switching module.
Owner:SAMSUNG SDS CO LTD
Large-yield efficient gas atomization powder manufacturing apparatus
The invention provides a large-yield efficient gas atomization powder manufacturing apparatus which comprises a smelting system, an atomization system, a powder feeding system, a dust removal system, a screening system and a vacuum-pumping system. The smelting system comprises two or more smelting furnace; the atomization system comprises a transition material bag and an atomization tower; and the powder feeding system, the dust removal system and the screening system are sequentially connected. The powder feeding system comprises a herringbone connector, an air pipe and an air pipe branch pipe. The design of multiple smelting furnaces, dual pipes, dual dust removal equipment and the like are adopted, when one of the dual facilities breaks down, equipment use is not influenced, the halt production maintaining risk is greatly decreased, and atomization powder manufacturing of 2-5 t / furnace can be achieved; and according to the vacuum-pumping system, an atomization chamber is pumped to be vacuum before atomization, filling of protective atmosphere is then carried out, the oxygen content in the atomization environment is reduced to a large extent, and the oxygen content in the powder is reduced.
Owner:湖南旭博冶金科技有限公司
Novel relay
The invention relates to the technical field of relays, in particular to a novel relay, and the relay comprises a relay body, two static contact bridges, a movable contact bridge, a driving shaft, a driving mechanism and at least one auxiliary terminal assembly; the auxiliary terminal assembly comprises two auxiliary terminals, an insulating seat, an auxiliary movable contact piece, an auxiliary static contact piece and an insulating clamping piece; the insulating seat is fixed in the relay body, and the auxiliary movable contact piece and the auxiliary static contact piece are detachably installed on the insulating seat; a moving contact and a static contact are arranged at an interval in the height direction, the driving shaft is sleeved with an insulating clamping piece, and the end, provided with the moving contact, of the auxiliary moving contact piece extends towards the insulating clamping piece and is matched with the insulating clamping piece in a clamped mode. Compared with the prior art, a fixing mode that the auxiliary movable contact piece is fixed on the driving shaft is replaced, the load of the driving shaft is reduced, and the problem that the auxiliary movable contact piece falls off from the driving shaft is solved.
Owner:SANYOU CORP LTD +1
Small mobile electric generator
The invention discloses a small mobile electric generator. The small mobile electric generator comprises a trolley frame, front wheels, rear wheels, an electric generator box and an oil tank, whereinthe trolley frame is horizontally disposed, the bottom end of the trolley frame is connected with the front wheels and the rear wheels, the front wheels are located on the left side of the rear wheels, the number of the front wheels is two, the number of the rear wheels is two, and the electric generator box and the oil tank are arranged at the top end of the trolley frame. The small mobile electric generator has the beneficial effects that the electric generator is installed on the trolley frame, so the electric generator can be conveniently transferred; in addition, first connecting rods andsecond connecting rods are installed in the electric generator box, screw rods can be compressed through rotation of a rotating block, the first connecting rods and the second connecting rods are driven to move, idler wheels installed on movable plates can be promoted to rotate by 90 degrees and can be used as a backup in an emergency, movement can be smoother and steadier, the structure is simple, transferring is convenient, and the usability is high.
Owner:安徽德科电气科技有限公司
Self-switching type bi-directional injection molding machine head
The invention discloses a self-switching type bi-directional injection molding machine head, and belongs to the field of injection molding machine heads. The self-switching type bi-directional injection molding machine head comprises a first injection molding machine and a second injection molding machine. Ends of the first injection molding machine and the second injection molding machine are separately connected with a first auxiliary injection molding machine head and a second auxiliary injection molding machine head. A conveying pipeline is connected between the first auxiliary injection molding machine head and the second auxiliary injection molding machine head. A feeding pipe is connected to the middle of the end, away from the first injection molding machine, of the conveying pipeline. A main injection molding machine head is connected to the end, away from the conveying pipe, of the feeding pipe. The conveying pipe is connected with a pair of pneumatic butterfly valves. The pair of pneumatic butterfly valves are separately located on two sides of the feeding pipe. Through the bi-directional injection molding machine head, mixed injection molding is achieved, the mixing ratio of injection pigments is changed to obtain plastic products with more colors, and therefore types of injection molding materials purchased are decreased, the cost is lowered, and colors are of novelty.
Owner:佛山市顺德区震旭塑料机械有限公司
Anti-blocking double-pneumatic flap valve
InactiveCN113958717AEasy to operateEasy to useOperating means/releasing devices for valvesLift valveControl engineeringStructural engineering
The invention belongs to the technical field of flap valves, and aims to solve the problems that an existing flap valve does not have an anti-blocking function and is difficult to ensure that a discharging process is smoothly conducted, a flap of the existing flap valve is generally manually closed or opened, and the control process is time-consuming and labor-consuming, in particular to an anti-blocking double-pneumatic flap valve. The anti-blocking double-pneumatic flap valve comprises a valve body and a vertical hopper, the vertical hopper is installed at the top of the valve body, a vertical partition plate is installed in the middle of the vertical hopper, a flap assembly is installed at the bottom of the vertical hopper, a first anti-blocking assembly is installed in the valve body, a second anti-blocking assembly is installed at the position, close to the bottom, of the vertical partition plate, and a pneumatic control assembly is installed on the outer wall of the valve body. According to the anti-blocking double-pneumatic flap valve, the pneumatic control assembly is arranged to pneumatically control opening and closing of the flap, operation is easy, use is convenient, time and labor are saved, the operation efficiency is remarkably improved, by arranging the first anti-blocking assembly and the second anti-blocking assembly, the situation that an opening is blocked during discharging can be effectively prevented, it is guaranteed that the discharging process is conducted smoothly, and the discharging efficiency is improved.
Owner:安徽华创环保设备科技有限公司
Backup protection method for water machine of giant hydroelectric generating set
ActiveCN114810461APlay a backup roleGuaranteed uptimeHydro energy generationMachines/enginesWater turbineProcess engineering
The invention discloses a water turbine backup protection method for a giant hydroelectric generating set, and belongs to the technical field of backup protection of hydroelectric generating sets. According to the detected action that an upper guide shoe temperature shutdown counter is larger than 1, an upper guide shoe temperature over-high protection connecting piece is put in, a thrust shoe temperature shutdown counter is larger than 1, a thrust shoe temperature over-high protection connecting piece is put in, a lower guide shoe temperature shutdown counter is larger than 1, a lower guide shoe temperature over-high protection connecting piece is put in, and a lower guide shoe temperature shutdown counter is larger than 1. When the conditions such as the action of a mechanical overspeed travel switch, the action of a mechanical overspeed hydraulic travel loop and the input of a mechanical overspeed protection connecting piece are detected, program condition judgment is fully utilized, and a scientific and reasonable process is used for executing the backup protection shutdown of the water machine of the giant hydroelectric generating set; potential hidden dangers of backup protection of a traditional water machine relay are eliminated.
Owner:CHINA YANGTZE POWER
A fast security inspection device based on terahertz
ActiveCN111856607BRealize regular workConvenient security checkOptical detectionHydraulic cylinderTransmission belt
The invention discloses a terahertz-based rapid security inspection instrument, which includes a workbench and a transmission frame. A number of rollers are arranged between the workbenches. Pushing the spring makes the first blocking lever rotate clockwise around the first rotating shaft, and at the same time pushes the second blocking lever through the intermediate rod, so that the second blocking lever rotates counterclockwise around the second rotating shaft, and the first blocking lever and the second blocking lever move to Inside the middle box, the box body is driven by the conveyor belt through the middle box to complete the security inspection work. The setting of the spring acts as a buffer, and the box body will collide with the pulley on the first stop bar driven by the conveyor belt to avoid damage to the Hydraulic cylinder, the box body will slip between the conveyor belt after being blocked by the first stop bar, so that the box body stops moving for security inspection. When the first stop bar is damaged, the second stop bar can play a backup role, making the device keep running.
Owner:常州坤硕检测设备有限公司
Military Garbage Sorting Device Based on Beidou System
ActiveCN112340272BEasy transferNo spillageWaste collection and transferRefuse receptaclesProcess engineeringEnvironmental engineering
Owner:江苏绿奥环保科技有限公司
Plug-board structure
InactiveCN104752912AEasy to plug inSmooth connectionCoupling contact membersLive contact access preventionRemote controlEngineering
The invention discloses a plug-board structure. The plug-board structure comprises a plug-board body in which at least one supply hub is formed, wherein a plug-board protection structure covers the outside part of the plug-board, and the lower surface of the plug body and the plug-board protection structure are internally provided with a remote control device, the plug-board body is further provided with a display flasher electrically connected with telequipment and a remote control plate is arranged outside the telequipment; a battery box is arranged at the place of the plug-board nearby the upper surface of the plug-board body, a dry battery is arranged in the battery box, and the battery box is provided with a battery box switch made from a waterproof material. The plug-board structure can be applied to lift better so as to be convenient for plugging a plug and connecting with a power supply, is obvious in intelligent function, and is controlled by remote control; furthermore, the plug-board structure is provided with the battery to play a role in backup, and is convenient to observe the connecting state of the power supply.
Owner:CHENGDU JUZHI IND DESIGN
Multi-electronic-tag method, multi-electronic-tag and biological sample test tube
PendingCN112001463AAvoid missingImprove integrityCo-operative working arrangementsSensing by electromagnetic radiationComputer hardwareBottle cap
The invention provides a multi-electronic-tag method, a multi-electronic-tag and a biological sample test tube, and the method comprises: providing the biological sample test tube which is provided with a visual and non-contact first electronic tag; providing a non-contact second electronic tag, wherein the second electronic tag is arranged on at least one of the bottle cap and the bottle bottom;judging whether the body has biological sample data or not; synchronizing the biological sample data of the first chip to a second chip, so that the second chip binds the biological sample data; judging biological sample data of the second chip; synchronizing the biological sample data of the second chip to the first chip, and printing the biological sample data of the second chip on the body, sothat the first chip binds the biological sample data; writing the biological sample data into the first chip and the second chip, and printing the biological sample data on the body; and completing synchronization of the biological sample data by the first chip and the second chip, and displaying the biological sample data on the first electronic tag.
Owner:BEIJING HONGCHENG INNOVATION TECH CO LTD
A Radio Frequency Autonomous Relative Attitude Measurement System Applicable to Cluster Targets
ActiveCN104407326BEasy to distinguishAvoid complex timing controlPosition fixationMeasurement deviceDual mode
The invention relates to a radio-frequency autonomous relative attitude measurement system applied between cluster objects. The system comprises two sets of relative attitude measurement devices with identical structures. Each set of devices include two transmitting antennas, three receiving antennas, two radio-frequency transmitting channels, three radio-frequency receiving channels, an auxiliary radio-frequency receiving channel, two dual-mode auxiliary radio-frequency channels, a baseband processing module, and a high-stability time-based module. The two sets of relative attitude measurement devices respectively receive and sending ranging signals, so that relative attitude measurement of a master member and a slave member can be completed without the need to use observation data provided by other cluster members. Therefore, when parts of members in the target cluster become valid, the relative attitude measurement function can still be provided normally. In addition, with the system, the real-time performance of whole-cycle calculation as well as the real-time performance and operation flexibility of the equipment can be improved.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH
Combination optimization decision-making method for thermal power units under the complementarity of wind power and energy storage systems
InactiveCN107171367BPlay a backup roleRemove uncertaintySingle network parallel feeding arrangementsEnergy storageElectric power systemEngineering
The invention relates to a decision-making method for optimizing thermal power unit combination under complementation of wind power and an energy storage system. The decision-making method comprises a process of optimizing an upper layer problem and a lower layer problem, wherein the upper layer problem builds upper layer problem constraint conditions by taking minimization of the operating cost of a thermal power unit within a set period as an objective function; the lower layer problem builds lower layer problem constraint conditions by taking maximization of profit acquired by the energy storage system in performing space-time translation and backup supply on electric energy in a power grid as an objective function; and a solution is acquired by using a mode of alternative iteration of the upper layer problem and the lower layer problem. The energy storage system in the model not only can participate in an expected power balance constraint, but also can play a role of backup through complementation with the wind power, and has an ability of directly eliminating the uncertainty; frequent startup and shutdown of the thermal power unit is avoided on the basis of improving the uncertainty acceptance ability; and a regulating effect of the frequency of an electric power system is considered in decision making, so that the decision is enabled to be free from conservation and more conform to the reality.
Owner:SHANDONG UNIV +1
An optical current sensor and high-frequency signal measurement system
ActiveCN103424607BCommon Mode Noise ReductionReduce vibrationVoltage/current isolationMeasurement using digital techniquesMetallic materialsCurrent sensor
The invention relates to an optical current sensor and a high-frequency signal measurement system. The optical current sensor comprises an optical sensing part, a polarization maintaining fiber, an insulator and a demodulation module. The optical sensing part, the polarization maintaining fiber and the demodulation module are connected in sequence. The optical sensing part is supported by the insulator. The polarization maintaining fiber locates in an inner cavity of the insulator. The optical sensing part comprises a first sensing fiber ring, a second sensing fiber ring, a first wave plate, a first reflector, a second wave plate, a second reflector and a support, wherein the first wave plate, the first reflector, the second wave plate, the second reflector and the support are all made of nonmetal material. The first sensing fiber ring and the second sensing fiber ring are opposite in current direction. The demodulation module outputs two linearly-polarized beams passing the polarization maintaining fiber and the optical sensing part, the linearly-polarized beams carrying measured current information are returned and received by the polarization maintaining fiber, the beams are operated on the basis of differential induction, and measured current is obtained. The optical current sensor is capable of measuring high-frequency signals, and measurement is higher in accuracy and reliability.
Owner:泰安泰山高压开关有限公司
A method, system, device and storage medium for FTL power-down testing
The present invention relates to an FTL power-down test method, system, device and storage medium. By dividing the FTL into a data overwriting area for writing logic data and an information recording area for writing characteristic data, the information is recorded The area is divided into two sub-areas, and the characteristic data, data address and data length generated each time are accumulated and alternately written into the two sub-intervals of the information recording area to play a backup role. In the two sub-intervals, select the sub-interval in which data was written last time, and use the characteristic data, data address and data length of the sub-interval as the verification data, so that only the data written during power-off is lost during the verification, effectively improving the Verify the integrity of data, improve the security of key data, and improve test efficiency.
Owner:广州匠芯创科技有限公司
FTL power failure test method, system and device and storage medium
The invention relates to an FTL power failure test method, system and device and a storage medium. The method comprises: dividing the FTL into a data overwriting area used for writing logic data and an information recording area used for writing feature data, dividing an information recording region into two sub-regions. accumulating and alternately writing the feature data, the data address and the data length generated each time into two sub-intervals of the information recording area; to play a backup role, during verification, selecting a sub-interval in which data is written most recentlyfrom the two sub-intervals of the information recording area; using the characteristic data, the data address and the data length of the sub-interval as the verification data, so that only the data written during power failure is lost during verification, the integrity of the verification data is effectively improved, the safety of key data is improved, and the test efficiency is improved.
Owner:广州匠芯创科技有限公司
Novel energy-saving reaction kettle for automatically producing silicone oil
InactiveCN105749851AImprove work efficiencyAvoid unexpected situationsVapor condensationChemical/physical/physico-chemical moving reactorsFastenerSilicone oil
The invention discloses a novel energy-saving reaction kettle for automatically producing silicone oil. The reaction kettle comprises a reaction kettle body and a condenser pipe which are mutually connected. A connection pipe is arranged between the condenser pipe and the reaction kettle body, is a fine pipe, and is provided with a protective pipe. A stainless steel protective net is arranged outside the protective pipe. The protective pipe is provided with a fastener. A stirrer is arranged in the reaction kettle. Stirring accelerating devices are arranged in the reaction kettle and are vibration rods. The vibration rods are located on the inner wall of the reaction kettle. A cooling part is arranged on the condenser pipe and can be used for cooling and condensing hot chemical gas in the condenser pipe in time. A water container is arranged below the condenser pipe and is used for collecting condensate water in time. The condensed gas can be fed into the next procedure, so that the gas generated by the reaction kettle reaches the emission standard and the surrounding environment is protected. A reserve pipe is arranged below the condenser pipe to prevent the occurrence of unexpected situations and to take a backup effect. The working efficiency of the reaction kettle is increased.
Owner:仪征市新源新材料科技有限公司
Command transmission method between spacecraft and vehicle
ActiveCN108419153BImprove reliabilityImprove securityTelemetry/telecontrol selection arrangementsTransmissionTransmission systemCommand center
The invention relates to a command transmission method between a spacecraft and a carrier. The command transmission method is implemented based on a command transmission system that comprises a mechanical triggering sub-system and an electrical triggering sub-system. The command transmission method comprises the steps of S1, triggering a first command in the mechanical triggering sub-system, and separately sending the first command to the carrier and the electrical triggering sub-system; and S2, receiving the first command by using the electrical triggering sub-system, and triggering a secondcommand in the electrical triggering sub-system and sending the second command to a sub-system in the spacecraft. High reliable command transmission when the spacecraft and the carrier fly normally orescape during an ascent flying phase by using the way of combining the mechanical triggering sub-system with the electrical triggering sub-system. The method provided by the invention has a redundantdesign of dual-channel, multi-touch and multi-command-center, and completely eradicates the hidden dangers of mistakenly transmission and leaking of the commands.
Owner:BEIJING SPACE TECH RES & TEST CENT
Feeding device for water treatment
InactiveCN110697809AAchieve outputPlay a backup roleWater treatment parameter controlWater/sewage treatmentStructural engineeringSingle chip
The invention discloses a feeding device for water treatment, and relates to the technical field of water treatment. The feeding device comprises a base, a set of barrel bodies, a feeding assembly anda frame body, wherein the frame body comprises a conical supporting sleeve, a plurality of supporting plates are fixed to the bottom surface of the conical supporting sleeve, the conical supporting sleeve is fixed to the frame body through the supporting plates, and a reinforcing ring is fixed to the top surface of the conical supporting sleeve through a plurality of connecting plates. Accordingto the invention, by arranging the liquid level sensors, the liquid level heights of the agents in the first cavity and the second cavity can be detected; by matching the single chip microcomputer andthe electric switch valve, the opening and the closing of the first discharge pipe and the second discharge pipe can be controlled, so that the outputs of the materials in the first cavity and the second cavity can be achieved; and during the use, the material in the second cavity is directly output after the material in the first cavity is conveyed, so that the standby function can be achieved,and the problem of low feeding efficiency caused by the insufficient material in the existing feeding device is solved.
Owner:FOSHAN UNIVERSITY
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