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49results about How to "Multiple reaction time" patented technology
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Landing point forecasting system for space launch rocket
ActiveCN107679655ANarrow searchImprove recycling efficiencyForecastingDesign optimisation/simulationData processing systemSpace launch
The invention discloses a landing point forecasting system for space launch rocket. According to the invention, the landing point forecasting system is connected to a spaceflight test and control network. Rocket debris and rocket flight position and speed information are extracted from data provided by a radar data processing system. Rocket debris separation time is extracted according to information provided by a remote measurement data processing system. Initial separation point data is obtained through fitting simulation. A rocket debris flight dynamics model is established through combination of flight environment mathematics modeling and aerodynamic characteristics analysis. Through landing point influence factor analysis, landing point accurate forecasting is performed, so that a landing area search range is reduced and rocket debris recycling efficiency is improved.
Owner:中国人民解放军63816部队
Lane departure early warning method and system
ActiveCN106515742AMultiple reaction timeReduce collision accidentsExternal condition input parametersHead-up displayComputing center
Disclosed are a lane departure early warning method and system. The lane departure early warning method comprises the following steps: a vision collector obtaining lane mark line information of a road image, a vehicle body information sensor collecting vehicle body information, providing the lane mark line information and the vehicle body information to an FPGA logic center, and the FPGA logic center determining information of the location of a vehicle in the lane and the direction through conversions; the FPGA logic center providing the information of the location of the vehicle in the lane and the direction to a DSP computing center, and the DSP computing center determining whether an alarm is triggered or not under the current state according to set the early warning conditions; an alarm module receiving the warning information issued by the DSP computing center and performing vehicle body control according to the warning information; and arranging a head-up display HUD on glass in front of the head of a driver, wherein the display at least displays vehicle row parameters, as well as the information of the location of the vehicle in the lane and the direction. The lane departure early warning method and system can assist in the conditions of inattention and the like due to over-fatigue or long-term monotonous driving.
Owner:兴科迪科技(泰州)有限公司
Safety pre-warning system and method for tortuous road in mountainous area
InactiveCN107230389AMultiple reaction timeAnti-collision systemsRadio wave reradiation/reflectionDriver/operatorShortest distance
The invention discloses a safety pre-warning system and method for a tortuous road in a mountainous area. The safety pre-warning system for the tortuous road comprises a mountainous area tortuous roadside safety pre-warning system and a mountainous area tortuous road vehicle-mounted pre-warning system which are matched with each other, wherein the mountainous area tortuous roadside safety pre-warning system comprises a vehicle licence plate recognition unit, a vehicle positioning signal receiving unit, a tortuous road edge safety distance monitoring unit, a tortuous road vehicle status monitoring unit and a data processing unit; and the mountainous area tortuous road vehicle-mounted pre-warning system comprises a micro-processing unit, a GPS positioner, an external GPS positioning signal receiver, an acceleration sensor, a vehicle-mounted end short-distance data communication module, an LED display, an alarm and a vehicle-mounted end external memory. According to the provided technical scheme, vehicles passing through the tortuous road can be pre-warned in advance according to actual conditions of the tortuous road in combination with vehicle conditions running on the tortuous road, so that more reaction time is bought, and the probability and the severity of accidents are greatly lowered.
Owner:SHANXI PROVINCIAL RES INST OF COMM
Safe driving method and system based on ADAS module
InactiveCN106080609AFar reaction timeMultiple reaction timeExternal condition input parametersSignalling/lighting devicesTraffic accidentComputer module
The invention provides a safe driving method and system based on an ADAS module. The method comprises the steps that S1, the ADAS module recognizes the license plate number of a preceding vehicle; S2, the ADAS module transmits license plate information data to a controller module for processing; S3, the controller module has an access to a background server after processing the license plate information data and then inquires state information of the vehicle; S4, according to set judgment conditions, the controller module conducts comparison and chooses subtitle alarm or voice alarm; and S5, a driver judges whether the preceding vehicle is dangerous or not according to early warning information. The system comprises the ADAS module, a communication module and the background server. By the adoption of the safe driving method and system provided by the invention, the driver can inquire the vehicle condition information, such as vehicle maintenance and potential hazards, driving years of a driver of the preceding vehicle and the number of traffic accidents, of the preceding vehicle when being far away from the preceding vehicle, and take collision avoidance measures as soon as possible according to the early warning conditions, the driver can get away from accident-prone vehicles and green hands, the probability of traffic accidents is decreased, and driving safety is guaranteed.
Owner:SHENZHEN SEG SCI NAVIGATIONS CO LTD
Graphite-phase-like carbon nitride-(110) crystal face bismuth vanadate Z-type heterojunction photocatalyst and preparation method and application thereof
ActiveCN109622013AImprove degradation rateImproved visible light responseWater/sewage treatment by irradiationWater treatment compoundsHeterojunctionCharge carrier
The invention provides a graphite-phase-like carbon nitride-(110) crystal face bismuth vanadate Z-type heterojunction photocatalyst and a preparation method and application thereof. The method comprises the following steps of 1, preparing exposed (010) crystal face BiVO4 powder and H2SO4 modified g-C3N4 powder; 2, adding the exposed (010) crystal face BiVO4 powder into water, and conducting ultraviolet illumination; dissolving the modified g-C3N4 powder into water, and conducting ultraviolet illumination; 3, adding a BiVO4 solution after ultraviolet treatment into a g-C3N4 solution which is subjected to ultraviolet illumination and negatively charged to obtain a precursor solution, and conducting ultraviolet illumination on the precursor solution to obtain g-C3N4-(110) crystal face BiVO4Z-type heterojunction photocatalyst powder. The catalyst enlarges the response range of visible light, reduces the recombination rate of electrons and hole pairs, improves the separation efficiency of charge carriers and improves the photocatalytic performance of the BiVO4-based composite photocatalyst.
Owner:陕西东尚智新科技有限公司
Real-time risk early warning system for no-signal control intersection of trunk highway
ActiveCN109544988AReduce severityMultiple reaction timeAnti-collision systemsEarly warning systemVehicle detector
The invention relates to a real-time risk early warning system for a no-signal control intersection of a trunk highway, and belongs to the technical field of road safety early warning. The early warning system comprises a plurality of distributed wireless early warning units, which comprise a logic controller, a power supply module, VMS early warning signs, a vehicle detector group and a wirelessdigital transmission communication module. The real-time risk early warning system for a no-signal control intersection of a trunk highway provided by the invention comprehensively considers the interaction relationship of the traffic flow between the secondary line and the main line near the intersection, lays the VMS early warning signs at the fixed distance between the main line and the secondary line by adopting priority warning concept, and dynamically displays early warning messages according to the vehicle passing information detected by the lane to warn the vehicles to enter the intersection in advance, so as to buy more reaction time for the drivers, thereby greatly reducing the probability and severity of accidents, and also reducing the risk of driving without signal-controlledintersections.
Owner:BROADVISION ENG CONSULTANTS
Silver/bismuth vanadate/carbon nitride heterojunction photocatalyst as well as preparation method and application thereof
ActiveCN111992239AImprove degradation rateGood application prospectPhysical/chemical process catalystsWater/sewage treatment by irradiationPhoto catalysisDistillation
The invention discloses a silver / bismuth vanadate / carbon nitride heterojunction photocatalyst as well as a preparation method and application thereof. The method comprises the following steps of: step1, adding BiVO4 powder with an exposed (010) crystal face into deionized water, performing uniform mixing, carrying out ultraviolet irradiation, adding AgNO3, carrying out uniform mixing under ultraviolet irradiation, sequentially washing and drying precipitates to obtain Ag / BiVO4 powder; uniformly mixing melamine, an HNO3 solution and ethanol, drying the mixture by distillation, calcining the obtained precursor twice, and uniformly mixing the obtained powder in deionized water; and step 2, uniformly mixing the Ag / BiVO4 powder in the deionized water, carrying out ultraviolet irradiation, andsequentially washing and drying the powder to obtain the silver / bismuth vanadate / carbon nitride heterojunction photocatalyst. A photo-selective deposition method is adopted, so that the photo-responserange of the catalyst is enlarged, the separation efficiency of carriers is improved, the recombination rate of electrons and hole pairs is reduced, and the effective photocatalytic activity of heterojunctions is realized.
Owner:SHAANXI UNIV OF SCI & TECH
Thermal runaway early-warning method and early-warning fire-fighting system for lithium ion battery for energy storage
ActiveCN113593194AMultiple reaction timeAvoid pollutionElectrical testingFire rescueEnvironmental engineeringLithium-ion battery
The invention discloses a thermal runaway early-warning method and early-warning fire-fighting system for a lithium ion battery for energy storage, and belongs to the technical field of thermal runaway of lithium ion batteries. The thermal runaway early warning method for the lithium ion battery for energy storage comprises the steps that a temperature sensor detects the temperature T in a single battery, a gas sensor detects the concentration of hydrogen, the concentration of carbon dioxide, the concentration of carbon monoxide, the concentration of methane, the concentration of ethylene, the concentration of ethane and the concentration of smoke and sends the concentration to a main control unit, and the main control unit conducts judgment; and the thermal runaway early-warning and fire-fighting system for the lithium ion battery for energy storage comprises a characteristic acquisition device, a main control unit, an alarm device and a fire-fighting device, the characteristic acquisition device detects battery thermal runaway characteristic parameters and sends the battery thermal runaway characteristic parameters to the main control unit, and the main control unit controls the alarm device and the fire-fighting device to work according to a thermal runaway early-warning method for the lithium ion battery for energy storage. The thermal runaway early-warning method and early-warning fire-fighting system for the lithium ion battery for energy storage can perform early warning on the dangerous stage of the thermal runaway process of the battery.
Owner:NORTHEASTERN UNIV
Automatic control system of highway automobile for avoiding rear-end collision
ActiveCN107886771AShorten speedMultiple reaction timeAnti-collision systemsTraffic signalsRear-end collisionAutomatic train control
The present invention provides an automatic control system of highway automobile for avoiding rear-end collision. The system comprises detection devices and a central processing unit. The system is characterized in that: the system further comprises reduction gears. The quantity of the reduction gears is the same as the quantity of the detection devices, the reduction gears are distributed on a highway each to each, the detection devices are configured to obtain vehicle speeds, the central processing unit communicates with the detection devices and the reduction gears, and it is determined whether vehicles have rear-end collision risks or not according to the vehicle speed values obtained by the detection devices; and if the vehicles have rear-end collision risks, the working of the reduction gears is controlled. In the invention, the reduction gears are arranged to perform active intervention of the vehicles which generate rear-end collision risks to reduce the relative speeds, and therefore, the probability of occurrence of rear-end collision can be effectively reduced.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Pre-judgment method for vehicle plugging, vehicle and computer readable storage medium
ActiveCN113593301AShorten the timeMultiple reaction timeAnti-collision systemsCharacter and pattern recognitionPerception systemImaging data
The invention discloses a pre-judgment method for vehicle plugging, a vehicle and a computer readable storage medium, and the method comprises the steps: collecting an all-round view image of a vehicle in real time, and determining whether a target vehicle exists in the all-round view image or not; if yes, acquiring a target vehicle track of the target vehicle and a target lane line corresponding to the own vehicle, and detecting whether the target vehicle track intersects with the target lane line before a preset intersection time threshold; if yes, updating the target vehicle track according to front view image data collected by the own vehicle so as to obtain a new target vehicle track, and detecting whether the new target vehicle track intersects with the driving track of the own vehicle or not; and if so, determining that a plugging scene exists, and outputting a preset plugging signal. Therefore, the time from the time when the target vehicle appears in the view angle of the foresight perception system to the time when the target vehicle is confirmed as the target vehicle is shortened, more response time is created for the vehicle, and the risk of rear-end collision is reduced.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD
Wind turbine generator power control method and system based on virtual inertia simulation
PendingCN110323789AImprove frequency stabilityImprove stabilitySingle network parallel feeding arrangementsPower oscillations reduction/preventionElectricityPower grid
The present invention relates to a wind turbine generator power control method and system based on virtual inertia simulation. The method comprises: determining an output power of a wind turbine generator according to a real-time frequency of the power grid; and adjusting a real-time output power of the wind turbine generator to be an output power of the wind turbine generator. According to the technical scheme of the present invention, without affecting the wind power generation benefit, by setting the selection function and the parameters thereof, the wind turbine generator only responds tothe dynamic change of the system frequency, and the equivalent moment of inertia provided by the wind turbine generator for the system is increased; under the circumstance of system faults or disturbance, the wind turbine generator can block the excessive change of the frequency, raise the low point of the frequency change, and provide the reaction time for the other unit to perform primary frequency modulation; and at the same time, the problem of the secondary power drop caused by the primary frequency modulation of the wind turbine generator is avoided, and anti-disturbance of the system against the fast change of the power supply and load, and frequency stability of the high proportion wind power system are improved.
Owner:CHINA ELECTRIC POWER RES INST +2
Fire-fighting long-distance spraying power-assisted nozzle and application method thereof
ActiveCN111214793AIncrease the areaExpand the spraying rangeFire rescueStructural engineeringCentrifugal force
The invention discloses a fire-fighting long-distance spraying power-assisted nozzle and an application method thereof, and belongs to the field of fire-fighting nozzles. The fire-fighting long-distance spraying power-assisted nozzle comprises a nozzle body, wherein a threaded connecting end is fixedly connected to the upper end of the nozzle body, and a splash disk is arranged at the lower end ofthe nozzle body. According to the fire-fighting long-distance spraying power-assisted nozzle and the application method thereof, through the arrangement of a power-assisted diffusion ring, the power-assisted diffusion ring can be controlled to diffuse when the fire spreading temperature is too high, and a plurality of superposed diffusion plates on the power-assisted diffusion ring further diffuse and unfold under the action of centrifugal force, so that on one hand, the area of water spraying and the water spraying amount per unit time are increased, on the other hand, the water spraying range is also increased under the action of centrifugal force, and the effect of power-assisted water spraying is achieved; and meanwhile, the water spraying effect of a nozzle in the prior art is matched, and the double water spraying can effectively improve the suppression effect of the fire-fighting nozzle on fire spread, so that more reaction time is gained for firefighters, and the safety is obviously improved.
Owner:东莞市美泰喷雾技术有限公司
Runway intrusion early warning method, terminal and device
PendingCN113112877AImprove accuracyRealize early warningData processing applicationsSemantic analysisSpeech soundEmbedded system
The invention provides a runway intrusion early warning method, a terminal and a storage device, and the method comprises the steps: S101, obtaining digital audio information for controlling and commanding air-ground communication, and recognizing the digital audio information as text information through a voice recognition engine; S102, acquiring instruction elements in the text information according to the keyword dictionary, acquiring security data through the instruction elements, and acquiring flight plan dynamic information; S103, performing rule check on the security data and the flight plan dynamic information according to the business rule, judging whether a rule check result meets an early warning condition or not, if yes, sending an early warning signal, and if not, executing S101. According to the invention, fusion processing and cross verification can be carried out on the electronic process list of the control tower and the voice recognition data of the key instruction, the early warning accuracy is improved, early warning can be realized, more response time is won for a unit and a controller to take measures, and the safety margin is increased.
Owner:广州市中南民航空管通信网络科技有限公司 +1
Structure key area control parameter early warning method based on recurrent neural network
PendingCN110378511AMaintain securityReduce casualtiesForecastingDesign optimisation/simulationStructural health monitoringInto-structure
The invention discloses a structure key area control parameter early warning method based on a recurrent neural network, and the method comprises the following steps: arranging sensors in a key area of a structure, and monitoring the displacement and strain parameters of the key area of the structure; converting data measured by the arranged sensors into structure control parameters; carrying outnormalization preprocessing on the obtained structure control parameters group by group; constructing a recurrent neural network structure; respectively training each layer of weight of the recurrentneural network by using the obtained multiple groups of data at different time intervals to obtain a group of models; monitoring data of the structure in a recent period of time is taken and subjectedto normalization and down-sampling processing to serve as initial input of the network for prediction. The future health state of the structure can be predicted, compared with an existing structure health monitoring method, more reaction time can be gained for a maintenance unit, the safety of the structure is maintained more effectively, and casualties and property losses caused by sudden damageof the structure are greatly reduced.
Owner:SOUTHEAST UNIV +1
Combustible gas alarm
The invention relates to a combustible gas alarm device and belongs to the technical field of gas detection devices. The combustible gas alarm comprises a detecting main body, a ball screw slide table, an anti-static connecting sheet, a gas sensor, a sensor anti-static slide rail seat, and an alarm; the detecting main body comprises a shell, a controller and a detector, wherein the controller andthe detector are both disposed inside the shell, and the detector is electrically connected with the controller; the ball screw slide table includes a driving mechanism, a slide seat and a slider, wherein the driving mechanism can drive the slider to move back and forth along the slide seat; the gas sensor is electrically connected with the detector; the gas sensor and the slider are connected bythe anti-static connecting sheet; the anti-static connecting sheet passes through the sensor anti-static slide rail seat and can slide on the sensor anti-static slide rail seat; and the alarm is electrically connected with the controller. The combustible gas alarm can detect the abnormal conditions of a combustible gas more quickly, and can give out an alarm earlier than a general alarm.
Owner:山东瑶安电子科技发展有限公司
Intelligent anti-pinch system and method for automobile door
InactiveCN110821331AMultiple reaction timeImprove securityPower-operated mechanismDriver/operatorIn vehicle
The invention relates to an intelligent anti-pinch system for an automobile door. The intelligent anti-pinch system for the automobile door comprises a vehicle-mounted control system, a vehicle-mounted voice output device and a laser detection device, and the vehicle-mounted control system is in communication connection with the vehicle-mounted voice output device and the laser detection device; the laser detection device comprises a laser signal transmitting device and a laser signal receiving device, the laser signal transmitting device is arranged on an automobile door frame body, and the laser signal receiving device is arranged on the inner side of the automobile door and used for receiving laser signals transmitted by the laser signal transmitting device in real time and transmittingthe laser signals to the vehicle-mounted control system; and the vehicle-mounted control system is used for judging whether foreign matter exists between the automobile door frame body and the automobile door or not according to the received laser signals and reminding a driver through the vehicle-mounted voice output device. According to the intelligent anti-pinch system for the automobile door,the driver reacts quickly when the anti-pinch system reminds the driver; and in addition, the vehicle-mounted control system can decrease the speed of the automobile door closing action through an air cylinder, and more reaction time is provided for the driver.
Owner:HUIZHOU DESAY SV AUTOMOTIVE
High-voltage connector assembly with secondary lock
PendingCN111092329AAvoid Disconnected SituationsMultiple reaction timeCoupling device detailsTwo-part coupling devicesPhysical medicine and rehabilitationEngineering
The invention discloses a high-voltage connector assembly with a secondary lock. The high-voltage connector assembly comprises a male end, a locking warping plate, a secondary lock sliding block and afemale end with a male end connecting part and a rear cover connecting part. After the male end and the female end are connected, the male end and the female end can be separated by pressing the locking warping plate under the condition that the secondary lock sliding block does not intervene. After the secondary lock sliding block takes effect, the male end and the female end cannot be separatedby pressing the locking warping plate, the secondary lock sliding block needs to be removed through a tool, then the locking warping plate is pressed, the male end and the female end can be separated, and therefore the situation of misoperation of personnel is avoided.
Owner:AUTO KABEL TAICANG HARDNESS
Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof
InactiveCN106526812ASuitable for useSimple structureMountingsCamera body detailsOptoelectronicsWide field microscopy
The invention relates to a light and adjustable infrared vehicle-mounted wide-angle lens, which comprises a negative meniscus lens A, a positive meniscus lens B and a double-convex lens C, wherein the three lenses are successively arranged from left to right in the incident direction of light rays. The air space between the negative meniscus lens A and the positive meniscus lens B is 14 mm. The air space between the positive meniscus lens B and the double-convex lens C is 7 mm. The invention also relates to a working method of the light and adjustable infrared vehicle-mounted wide-angle lens. The advantages of compact structure, high transmittance and the like are realized. During the optically designing process, the focal power is reasonably distributed and the temperature-adaptive optical athermalization is realized. The wide-angle lens can be matched with a long-wave infrared non-cooling type 320*240 and 20 mum detector to execute recording and security monitoring tasks.
Owner:FUJIAN FUGUANG TIANTONG OPTICS
Combustible gas detection alarm system
The invention discloses a combustible gas detection alarm system. The system comprises a server, an alarm, a single-chip microcomputer, a first wireless communication module and a combustible gas detection device. The combustible gas detection device comprises a shell arranged in the axial direction of the gas pipeline and a plurality of gas detection sensors arranged in the shell, a plurality ofair suction openings are formed in the side, attached to the gas pipeline, of the shell, and the gas detection sensors correspond to the air suction openings in position. The gas detection sensors andthe alarm are connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the server through the first wireless communication module. The combustible gas detection device is arranged on the gas pipeline, the gas leakage position can be rapidly, efficiently and accurately positioned, an alarm prompt can be given out earlier, more reaction time is provided forpeople, and accidents are avoided.
Owner:石家庄昆仑新奥燃气有限公司
A thermal runaway warning method for lithium-ion batteries for energy storage and an early warning and fire protection system
ActiveCN113593194BMultiple reaction timeAvoid pollutionElectrical testingFire rescueLithium-ion batteryBattery cell
Owner:NORTHEASTERN UNIV LIAONING
Highway sharp turn warning indicator
ActiveCN113216031AIncrease attractivenessMultiple reaction timeTraffic signalsRoad signsStructural engineeringLoudspeaker
The invention discloses a highway sharp turn warning indicator which comprises a supporting assembly and a warning assembly, wherein the supporting assembly comprises a base, a supporting column arranged at the top of the base, a mounting box arranged at the top of the supporting column and a control box arranged on the side surface of the mounting box; and the warning assembly is arranged outside the mounting box and comprises a display screen arranged on the side surface of the mounting box, a fixing piece arranged on the side, which is close to the mounting box, of the display screen, a through groove formed in the top of the mounting box, a movable disc arranged in the through groove and an alarm lamp arranged on the top of the movable disc. According to the invention, a driver is reminded through the display screen, a loudspeaker, an alarm lamp and other warning devices at the same time, then the warning device can be rotated when a vehicle passes through a sharp turn through the arrangement of a transmission assembly, the attraction of the warning device to the driver is improved, the driver can have more response time, and the accident occurrence rate is greatly reduced.
Owner:GUIZHOU POWER GRID CO LTD
A lane departure warning method and system
ActiveCN106515742BMultiple reaction timeReduce collision accidentsExternal condition input parametersHead-up displayComputing center
Disclosed are a lane departure early warning method and system. The lane departure early warning method comprises the following steps: a vision collector obtaining lane mark line information of a road image, a vehicle body information sensor collecting vehicle body information, providing the lane mark line information and the vehicle body information to an FPGA logic center, and the FPGA logic center determining information of the location of a vehicle in the lane and the direction through conversions; the FPGA logic center providing the information of the location of the vehicle in the lane and the direction to a DSP computing center, and the DSP computing center determining whether an alarm is triggered or not under the current state according to set the early warning conditions; an alarm module receiving the warning information issued by the DSP computing center and performing vehicle body control according to the warning information; and arranging a head-up display HUD on glass in front of the head of a driver, wherein the display at least displays vehicle row parameters, as well as the information of the location of the vehicle in the lane and the direction. The lane departure early warning method and system can assist in the conditions of inattention and the like due to over-fatigue or long-term monotonous driving.
Owner:兴科迪科技(泰州)有限公司
Acousto-optic reminding type pipe joint for stainless steel pipe
InactiveCN114508638ATimely detection of leakageReduce leakagePipe couplingsPipeline systemsWater leakageStructural engineering
The invention discloses an acousto-optic reminding type pipe joint for a stainless steel pipe, and belongs to the technical field of pipe joints. Through the arrangement of an acousto-optic reminding part, when the joint of the pipe joint and the stainless steel pipe has a leakage phenomenon, a water guide ring and a reminding water guide rod can suck and guide part of leaked water to an expanding agent, so that the expanding agent absorbs water to expand; therefore, adjustment in the acousto-optic reminding piece is triggered, the reminding whistle makes a sound, and part of the reminding rod extends out of the reminding adjusting box, so that workers can be reminded in an acousto-optic combined mode, the related workers can find the leakage phenomenon of the pipe joint in time, and the working efficiency is improved. According to the invention, the self-adjusting sealing element is arranged, so that a worker is prompted to carry out corresponding treatment in time, the waste of water resources can be effectively reduced, the leakage at the joint can be avoided, the self-adjusting sealing element can be correspondingly adjusted, the joint can be sealed to a certain extent by the annular elastic bag, and the water leakage is reduced to a certain extent.
Owner:南通久鼎特种钢管有限公司
A Space Launch Rocket Landing Point Prediction System
ActiveCN107679655BNarrow searchImprove recycling efficiencyForecastingDesign optimisation/simulationRocketSpaceflight
The invention discloses a landing point prediction system for space launch rockets. The technical method is connected to the aerospace measurement and control network through the landing point prediction system, and extracts the rocket wreckage and rocket flight position and speed information according to the data provided by the radar data processing system. According to the information provided by the telemetry data processing system, the separation time of the rocket wreckage is extracted, the preliminary separation point data is obtained through fitting simulation, and the flight dynamics model of the rocket wreckage is established by combining the mathematical modeling of the flight environment and the analysis of aerodynamic characteristics. Analysis of influencing factors, accurate prediction of landing point, narrowing the search range of landing area, and improving the efficiency of rocket wreckage recovery.
Owner:中国人民解放军63816部队
Overspeed protection and flow control method based on pumped storage power station
ActiveCN113738566AManual adjustment of pumping volumeExtended service lifeWater-power plantsHydro energy generationData setPower station
The invention discloses an overspeed protection and flow control method based on a pumped storage power station. The method integrally adopts a flow control system, the flow control system comprises a navigation channel analysis module, an overspeed analysis module and a pumped storage module; the navigation channel analysis module is used for observing passing ships of a navigation channel of the pumped storage power station; the overspeed analysis module is used for detecting the abnormal temperature rise condition that the rotating speed of a water turbine is too high; the pumped storage module is used for pumping water from a downstream reservoir to an upstream reservoir through a pump turbine set and storing energy in the form of potential energy; the channel analysis module comprises an image collection module, a data set comparison module and a distance analysis module; the overspeed analysis module comprises a temperature detection module and a temperature difference analysis module; the pumped storage module comprises a water turbine load module and a power distribution module; and the temperature difference analysis module is electrically connected with the power distribution module. The method has the advantage that the water pumping amount of a hydropower station is adjusted according to the number of ships.
Owner:STATE GRID XINYUAN +1
Auxiliary traction device
The invention provides an auxiliary traction device. The auxiliary traction device comprises a support, a traction piece, a linkage structure, a limiting piece, an elastic tension structure and a pay-off device, the traction piece and the linkage structure are rotationally arranged on the support, the limiting piece is fixedly installed on the support, and the elastic tension structure is connected with the linkage structure. According to the auxiliary traction device, when the pay-off device rotates reversely, a traction line cannot directly pull a lesion and needs to be buffered by a traction rod, if the number of reverse rotation turns of the pay-off device is large, the traction rod can rotate by a larger angle towards the working position to buffer the pulling force of the traction line, in other words, due to the existence of the traction rod, the traction line does not suddenly act on a lesion with a relatively large force, but is gradually and slowly increased, so that the operation difficulty is reduced, and more reaction time is provided for an operator; and when in use, the auxiliary traction device can be placed on one side of an operating table, the doctor operates the pay-off device to rotate reversely while observing lesions, and after the pay-off device is operated to stop after the pay-off device reaches a proper position, the optimal traction position and traction force can be adjusted.
Owner:山东大学齐鲁医院(青岛)
Leveling device for toilet paper rewinding machine
The invention relates to the technical field of paper processing, in particular to a leveling device for a toilet paper rewinding machine. Compared with the prior art, a cylindrical gas pad is arranged in the scheme, the length of the gas pad is the same with that of a paper picking-up rod, gas is inflated into the gas pad, the gas pad is arranged on the paper picking-up rod in a sleeving manner and is fixedly connected with the paper picking-up rod, a magnet part in sliding connection with a guide rod and an electromagnet fixedly connected with the guide rod are arranged on the guide rod, the magnet part is fixedly connected with one end of the paper picking-up rod, the paper picking-up rod is arranged in the horizontal direction, a gas pressure inductor is further arranged in the gas pad, and is electrically connected with a current controller outside the gas pad, and the current controller is electrically connected with an electric appliance. The problems that in the prior art, in the rewinding and slitting process, due to sudden tightening of paper, paper is prone to breakage, and the production cost of an enterprise is increased are solved.
Owner:重庆一锄科技有限公司
Method and device for adjusting vehicle speed
ActiveCN104924907BMultiple reaction timeReduce the probability of dangerVehicle fittingsCharacter and pattern recognitionBlink frequencyAutomatic control
The embodiment of the invention discloses a method and device for adjusting a vehicle speed. The method includes the steps that human eye recognition information of a driver is acquired, wherein the human eye recognition information includes pupil size and / or blink frequency; whether the human eye recognition information changes compared with prestored normal human eye recognition information is detected; if the detection result is yes, a vehicle is controlled to adjust the vehicle speed. By means of the method and device, the vehicle speed can be automatically controlled when emergencies happen in the driving process so that more response time can be won for the driver, and the probability of dangers is lowered.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
A kind of graphitic phase carbon nitride-(110) bismuth vanadate z-type heterojunction photocatalyst and its preparation method and application
ActiveCN109622013BImproved visible light responseNarrow band gapWater/sewage treatment by irradiationWater treatment compoundsHeterojunctionPtru catalyst
The present invention provides a graphite-like carbon nitride-(110) crystal plane bismuth vanadate Z-type heterojunction photocatalyst and its preparation method and application, comprising the following steps: Step 1, preparing exposed (010) crystal plane BiVO 4 powder, preparation H 2 SO 4 Modified g-C 3 N 4 Powder; step 2, expose the (010) crystal plane BiVO 4 The powder is added to water and exposed to ultraviolet light; the modified g‑C 3 N 4 The powder is dissolved in water and subjected to ultraviolet light; step 3, the UV-treated BiVO 4 The negatively charged g‑C of the solution is added to the UV light 3 N 4 The precursor solution is obtained in the solution, and the precursor solution is subjected to ultraviolet light to obtain g-C 3 N 4 ‑(110) crystal plane BiVO 4 Z-type heterojunction photocatalyst powder. The catalyst of the present invention increases the response range of visible light, delays the recombination rate of electrons and holes, improves the separation efficiency of carriers, and improves the BiVO 4 Photocatalytic performance of composite photocatalysts.
Owner:陕西东尚智新科技有限公司
A real-time risk warning system for unsignalized intersections on arterial highways
ActiveCN109544988BReduce severityMultiple reaction timeAnti-collision systemsEarly warning systemDriver/operator
Owner:BROADVISION ENG CONSULTANTS
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