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164 results about "Road surface temperature" patented technology
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Self-cleaning water permeable brick and preparation method thereof
InactiveCN101445340AWide variety of sourcesImprove pollutionSolid waste managementEcological environmentBrick
The invention discloses a self-cleaning water permeable brick comprising a surface material and a base material. The base material is weighed according to weight percentage, comprising 68.4 percent to 77.5 percent of rubble or building rubbish granule or slag, 10 percent to 25 percent of cement, and 5.3 percent to 12 percent of water. The surface material is weighed according to weight percentage, comprising 66.7 percent to 71.8 percent of high-intensity sand, 10.8 percent to 26.5 percent of cement, 3.4 percent to 10.4 percent of water, and 0.1 percent to 1.0 percent of nanometer titanium dioxide. The surface material and the base material are compacted together to form an integrated water permeable brick. The invention further discloses a preparation method of the self-cleaning water permeable brick. The method comprises the following steps: 1) the base material and the surface material are weighed, respectively premixed and then stirred as raw materials for standby application; 2) molding is carried out; 3) steam curing is carried out; and 4) liquid titanium dioxide is sprayed. Road surfacing of the self-cleaning water permeable brick in the invention can reduce water permeable hole plugging and surface pollution, thereby having the effects of road surface temperature decrease and high-efficient sterilization, regaining circulatory system of natural soil air and water, preventing soil pollution and improving ecological environment.
Owner:程卫国
Vehicle safety warning device
InactiveUS7301478B1Arrangements for variable traffic instructionsDigital data processing detailsDriver/operatorLight flashes
Apparatus, methods, system and devices for monitoring road surface temperature to detect hazardous road surface conditions. An indicator provides the sensed road surface temperature and hazardous road condition warning to a driver while a tail light interface automatically produce a tail light signal to warn drivers traveling behind the vehicle when a hazardous condition is detected. In an embodiment, the system includes a vehicle engine retardation system interfaced with the hazardous road condition warning system. When the retardation system is in use and hazardous road surface conditions are detected the controller automatically produces the brake light signal unless a tail light control switch is used to manually deactivating the automatic tail light flashing signal when the vehicle is traveling in a state that does not allow alternative control of the brake lights.
Owner:OVERLAND SAFETY TECH CORP
Road surface wet and slippery state identification method
InactiveCN101609606AImprove adhesionImprove driving safetyAnti-collision systemsBiological neural network modelsAdhesion coefficientHidden layer
The invention relates to a road surface wet and slippery state identification method, which comprises the following steps: 1) establishing a road surface wet and slippery state identification BP artificial neural network comprising an input layer, a hidden layer and an output layer; 2) measuring air humidity, road surface temperature, temperature difference between the road surface temperature and air temperature and road surface wet and slippery state of different months, different regions and different times and defining an input vector and an output vector; 3) utilizing the measured values in the step 2) to train the artificial neural network in an off-line manner for obtaining IW, b, IW and b; 4) embedding IW, IW, b and b obtained by training in the step 3) in a vehicle-mounted ECU and calculating the output vector according to the actually input mouth, region, time, humidity and the temperature difference between the road surface temperature and the air temperature; and 5) judging the road surface wet and slippery state according to the output vector calculated in the step 4) and the output vector defined in the step 2) and providing the corresponding road surface wet and slippery state for a driver through a display device. The method can accurately identify the road surface wet and slippery state, facilitate the calculation of road surface maximum adhesion coefficient of the vehicle-mounted ECU and provide a powerful guarantee for travel safety.
Owner:TSINGHUA UNIV
Modified asphalt concrete with road surface cooling function
InactiveCN102849990AWith road surface cooling functionEasy constructionThermal energyInternal temperature
The invention discloses modified asphalt concrete with a road surface cooling function. The modified asphalt concrete is prepared by following raw materials of, by weight, 100 parts of mineral aggregate, 3-9 parts of asphalt, 0.5-3 parts of tourmaline, 0-1 part of expanded perlite and 0-0.06 part of auxiliary agents, wherein the tourmaline is tourmaline powders and / or tourmaline negative ion powders, and the auxiliary agents are silane coupling agents or titanate coupling agents. According to the modified asphalt concrete with the road surface cooling function, excellent characteristics of the tourmaline are used, the tourmaline can convert thermal energy into other energy of electric energy and the like through an energy conversion theory and reduce internal temperatures of the asphalt concrete; and on the other side, the expanded perlite has heat preservation effects so that the thermal conductivity of the asphalt concrete can be reduced, and the asphalt concrete can not be influenced by external high-temperature environment; and under high temperature conditions, temperatures of road surfaces using the modified asphalt concrete are obviously lower than those of traditional asphalt concrete road surfaces.
Owner:CHANGAN UNIV
Airport road surface ice accretion early warning system and early warning method thereof
The invention relates to an airport road surface ice accretion early warning system and an early warning method thereof. The system is composed of a data acquisition and monitoring center and a data center; the data acquisition and monitoring center includes a wind speed sensor, an ambient temperature sensor, a road surface temperature and humidity sensor, a temperature sensor, a signal conditioning board, a protocol conversion module, a first wireless communication module, a router, a man-machine interaction interface, an icing early warning device and a monitoring terminal; and the data center includes a second wireless communication module, an Internet network, an airport base station server and a mobile terminal. The airport road surface ice accretion early warning system and the early warning method thereof of the invention have wireless data transmission, mobile terminal on-site monitoring and ice accretion early warning functions. According to the airport road surface ice accretion early warning system and the early warning method thereof of the invention, probabilistic prediction for field road surface ice accretion conditions can be realized through using temperature and ice accretion models and according to the local temperature, road surface relative humidity, wind speed and road surface and internal temperature of an airport, and therefore, early warning signals can be accurately emitted to ground dispatchers and ground supporting personnel, and preparations for de-icing operation can be made.
Owner:CIVIL AVIATION UNIV OF CHINA
Cooling and dedusting device capable of preventing tracks
InactiveCN105421265ARealize dual intelligent managementRealize unattendedGeneral water supply conservationPaving detailsControl systemAsphalt pavement
The invention provides a cooling and dedusting device capable of preventing tracks. The cooling and dedusting device comprises a sensor, a control system used for receiving signals of the sensor, a rainwater recycling and processing device controlled by the control system, and a spraying device controlled by the control system. According to the cooling and dedusting device, the real-time road surface temperature is collected, clear water can be sprayed in time, the road surface is cooled, track damage is prevented, the service life of the asphalt road surface is prolonged, and the cost of the whole life cycle of the road surface is reduced.
Owner:SHANDONG JIAOTONG UNIV
Infrared thermal imager and method for detecting asphalt road construction
InactiveCN103292930ATemperature reflectionAvoid processing powerThermometer applicationsPyrometry using electric radation detectorsEngineeringDistributor
The invention discloses an infrared thermal imager and a method for detecting asphalt road construction. According to the method for detecting the temperature in the construction, firstly, the start temperature needs to be detected, the relationship between the mixing temperature and the start temperature is determined, the start temperature is prevented from being too high or too low, and secondly, the arrival temperature and distribution of low-temperature surface mixture are detected, 'material covering', too long load distance and skip car coverage caused by too short mixing time are avoided, the influence of period temperature loss on the generated low-temperature surface mixture is determined, the mixture temperature of a distributor is detected, namely, the paving temperature is detected, and reasonable mixing temperature is determined according to the relationship between the start temperature and the arrival temperature and the relationship between the start temperature and the mixing temperature of a mixing plant. Rolling follow-up is detected, an initial pressure area is prevented from being too long or too short, the surface is compacted as soon as possible, the temperature of a road surface at the end of rolling is detected, so that effective compaction time of re-rolling and final rolling is determined, and too low road surface temperature at the end of rolling due to untimely follow-up of re-rolling and too long re-rolling area is avoided.
Owner:GUANGDONG HUILIPU ROAD & BRIDGE INFORMATION ENG
Heat conduction asphalt concrete road surface temperature difference power generation system
InactiveCN103633882AImprove driving safetyReduce heating rateClimate change adaptationPaving detailsEngineeringUrban heat island
The invention relates to an urban asphalt concrete road surface temperature difference power generation system, which is formed by three subsystems, namely a solar heat collecting system, a power generation system and an electric energy storing and converting system, wherein the solar heat collecting system is used as the heat source of the whole system and is mainly formed by a heat collecting asphalt concrete layer doped with heat conduction materials such as graphite and a heat conduction aluminum sheet 3, which are paved on a road bed; the power generation system is formed by multiple semiconductor temperature difference power generation sheet modules 14 and heat conduction silica grease 15 for enhancing heat conduction; the electric energy storing and converting system comprises a DC (direct current) / DC converter 7, an inverter 9 and a storage battery bank 8. The system utilizes a semiconductor temperature difference power generation sheet 16 to convert the heat collected from the road surface to be directly used electric energy; meanwhile, the excessively fast temperature rising on the road surface in the daytime in summer is alleviated, and the temperature dropping of the road surface at night is accelerated, so the thermal stress damage to the road surface caused by temperature gradient is reduced, the use performance and the durability of the road surface are improved and the urban heat island effect is alleviated.
Owner:朱顺敏
Contact type meteorological monitoring pavement sensor for road traffic
InactiveCN102830447AIndication of weather conditions using multiple variablesMicrocontrollerFreezing Point Temperature
A contact type meteorological monitoring pavement sensor for road traffic comprises a microcontroller, a water film thickness detecting module, a freezing point temperature module, a multi-frequency capacitance detecting module, a pavement temperature detecting module, an RS232 communication module and a power management module, wherein an input end of the water film thickness detecting module is connected with a first output end of the microcontroller; an input end of the freezing point temperature module is connected with a second output end of the microcontroller; an input end of the multi-frequency capacitance detecting module is connected with a third output end of the microcontroller; an input end of the pavement temperature detecting module is connected with a fourth output end of the microcontroller; the RS232 communication module is connected with the microcontroller; and the power management module respectively supplies power for the microcontroller, the water film thickness detecting module, the freezing point temperature module, the multi-frequency capacitance detecting module and the RS232 communication module. The contact type meteorological monitoring pavement sensor for road traffic has the advantages of comprehensive testing physical quantity and low cost.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Environment-friendly intelligent anti-icing de-icing system and method for highway bridge
ActiveCN104294760ANo damageAvoid pollutionPaving detailsBridge structural detailsSocial benefitsAtmospheric temperature
The invention discloses an environment-friendly intelligent anti-icing de-icing system and method for a highway bridge. The system comprises a road surface meteorological information collection subsystem, a spraying subsystem and a control subsystem. The road surface meteorological information collection subsystem comprises a meteorological sensor for collecting atmospheric temperature, humidity, air speed, road surface ice, snow and water conditions and road surface temperature; the spraying subsystem comprises an ice liquid removing making tank (17), an ice liquid removing working tank (1), an ice liquid removing output header pipe, a plurality of ice liquid removing output branches and a plurality of nozzles (15). The environment-friendly intelligent anti-icing de-icing system and method for the highway bridge can efficiently, intelligently and automatically remove ice, and are obvious in social benefits.
Owner:HUNAN ZHITONG ENG TECH CO LTD +1
Intelligent automatic snow melting and deicing bridge deck pavement system
InactiveCN108755340AIncrease temperatureReal-time acquisitionPaving detailsTemperature controlBridge deck
The invention discloses an intelligent automatic snow melting and deicing bridge deck pavement system. The system comprises a pavement upper layer, a pavement lower layer and a concrete slab layer which are laid in order from top to bottom, a steel wire mesh is arranged between the pavement upper layer and the pavement lower layer, and a heating wire is paved on the steel wire mesh; a data receiving controller and a digital temperature control switch are connected between the heating wire and a power grid, a temperature sensor is arranged in the pavement upper layer, and the data receiving controller collects the road surface temperature through the temperature sensor. When the road surface temperature exceeds a set threshold, the data receiving controller controls the digital temperaturecontrol switch to be turned on for supplying power to the heating wire to realize the road surface heating. Through intelligent power supply control on a converge cabinet through the digital temperature control switch connected with the data receiving controller, the electric heating snow melting system is high in heating speed, high in heat supply stability, has a good effect of melting snow anddeicing, and does not cause pollution and damage to the environment and the road surface; and the whole system does not need manual on-site participation during operation, reducing the labor cost, andimproving the work efficiency.
Owner:CHANGAN UNIV
Completion method of pavement temperature response missing values
ActiveCN104776937AGuaranteed fitting accuracyThermometer applicationsTemperature responseAtmospheric temperature
The invention provides a completion method of pavement temperature response missing values and aims to solve the problems that traditional missing value completion methods are low in reliability, inconvenient to apply and the like. Under the conditions that pavement temperature monitoring is interrupted due to failures and temperature response has missing values, the missing values are completed. According to the method, the natural law that the atmosphere temperature fluctuates periodically and seasonally is used, an addition model adopting sine and cosine curves is adopted to simulate change features of pavement temperature response at the same moment every day, and corresponding mathematical models are established; on the basis of the randomness characteristic of pavement structure temperature response, a random number sequence related to the burying depth of a temperature sensor is put forward to correct the models, and the real situation of temperature response monitoring data can be better simulated. With the adoption of the method, the pavement temperature response missing values can be scientifically and effectively completed, and the continuity, stability and reliability of pavement temperature monitoring data can be well guaranteed.
Owner:CHINA ROAD & BRIDGE
Electrical-snow melting asphalt concrete pavement used for municipal roads
InactiveCN104005318AAvoid damageImprove heating efficiencyPaving detailsThree levelThermal insulation
The invention relates to an electrical-snow melting asphalt concrete pavement used for municipal roads, which is characterized in that the asphalt concrete pavement comprises snow melting heating cables; heat-conducting asphalt concrete is paved above the snow melting heating cables; a thermal insulation layer is paved below the snow melting heating cables; the snow melting heating cables are connected with a controller through cold leads; and a temperature sensor is disposed in the heat-conducting asphalt concrete. The electrical-snow melting asphalt concrete pavement of the invention makes use of the principles of electrical heating and heat conduction, and realizes heating of the steel-pipe-protected heating cables by electric energy. An upper surface layer of the heat-conducting asphalt concrete is adopted; the thermal insulation layer is disposed below the cables in the pavement structure; the system output power is controlled by a control switch with three levels of high, medium and low levels; the temperature sensor is disposed for real time control of the road surface temperature during the system snow melting period. With the above concrete measures, both the system snow melting effect is guaranteed and the energy consumption is decreased to the maximum extent, and the pavement is convenient to service and maintain. The electrical-snow melting asphalt concrete pavement has the characteristics of high efficiency, low energy consumption, quick heating, environment friendliness, economy, convenient service, long service life, and the like.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP
Environmental parameter monitoring and management system based on big data visual analysis
InactiveCN112579975AImprove accuracyImprove reliabilityData processing applicationsMeasurement devicesMonitoring siteEnvironmental resource management
The invention discloses an environmental parameter monitoring and management system based on big data visualization analysis. The system comprises a region division module, a monitoring point arrangement module, an air quality monitoring module, an air quality analysis module, a temperature detection module, a humidity detection module, a humidity analysis module, an analysis server, a schedulinganalysis module, a watering cart scheduling center and a storage database. Monitoring points are arranged in each sub-region in an urban road region to be monitored, the concentration of each air quality parameter at each monitoring point in each sub-region is monitored, the road surface temperature and road surface humidity of each sub-region are detected, the comprehensive environmental influence coefficient of each sub-region is comprehensively calculated, whether each sub-region meets the road watering requirement or not is judged, the corresponding parking point position closest to the position of each sub-region meeting the road watering requirement is screened out, workers are informed to conduct watering treatment, and therefore the requirement for urban environment optimization management is met, and the physical and psychological health of travelers is guaranteed.
Owner:南京珀煦软件科技有限公司
Road surface paving construction method using graphene heating film
PendingCN107190615AStrong thermal conductivityAvoid the problems of shortened service life and massive death of green vegetationPaving detailsRoad engineeringSnow melting
The invention belongs to a road surface construction technology of road engineering in the field of highway engineering, and relates to a road surface paving construction method using the heating principle of a graphene heating film. According to the road surface paving construction method disclosed by the patent, the heat-conduction heating characteristics of graphene are utilized, and the road surface paving construction method has the advantages of avoiding a road surface from being iced, enabling people to travel conveniently, guaranteeing safe travelling of people and the like. The road surface paving construction method disclosed by the patent comprises the following steps of: step I, laying a soil base to a road surface base course in sequence; step II, laying a graphene heating film; and step III, measuring the temperature with an infrared temperature measuring device. Through the adoption of the road surface paving construction method, a road surface can be heated in the winter, so that the temperature of the road surface is maintained to be zero or above, icing of the road surface is avoided, the phenomenon of vehicle slip is avoided, daily travel of people is convenient, and the travel safety of people is guaranteed. The strong heat-conduction heating characteristics of the graphene heating film are utilized, so that the problems of short service life of the road surface and death of massive green vegetation caused by excessive use of snow melting agents are solved, investment of human and material resources is reduced and energy is saved.
Owner:SHANDONG TRANSPORT VOCATIONAL COLLEGE
Road-used multifunctional coating material with heat insulation and reduction and automobile exhaust treatment functions and preparation method of road-used multifunctional coating material
InactiveCN105315828AWith self-cleaning functionImprove redox abilityAnti-corrosive paintsThermal insulationPollution
The invention discloses a road-used multifunctional coating material with heat insulation and reduction and automobile exhaust treatment functions and a preparation method of the road-used multifunctional coating material. The road-used multifunctional coating material is prepared from the following ingredients by weight percent: 50-60 parts of a silicone acrylic emulsion, 15-25 parts of water, 5-9 parts of Fe-doped alumina supported nano-titanium dioxide, 5-9 parts of hollow glass beads, 5-9 parts of titanium dioxide, 11-14 parts of superfine diatomite, 5-9 parts of propylene glycol, 0.3-2.1 parts of an additive and 0.6-0.9 part of a dispersant. The preparation method is simple, and the road-used multifunctional coating material reasonably utilizes the favorable properties of pigments and fillers, not only can remarkably reduce the road surface temperature but also well degrade harmful ingredients in tail gas, and reduces environmental pollution caused by tail gas. Meanwhile, the road-used multifunctional coating material has relatively good weatherability, causes no secondary pollution during use and is an efficient and environment-friendly coating material.
Owner:CHANGAN UNIV
Wireless, solar-powered, pavement temperature sensor
ActiveUS7275864B1Thermometer detailsElectric signal transmission systemsElectrical batteryTemperature monitoring
Owner:CARGILL INC
Ultra-thin abrasion layer used for road and preparation method thereof
The invention provides an ultra-thin abrasion layer used for a road and a preparation method thereof. The ultra-thin abrasion layer includes a connection layer connecting to an original road surface,and an embedded type asphalt mixture laid on the connection layer; the connection layer is non-stick wheel modified emulsified asphalt, and the emulsified asphalt of 0.2 L / m2-1.2 L / m2 is sprayed on the original road surface at a road surface temperature of not lower than 0 DEG C; and the embedded type asphalt mixture is laid at a temperature of 135 DEG C to 170 DEG C, and the layer thickness aftercompaction is 1.5 cm-2.5 cm. In a ultra-thin abrasion layer technology, routine construction equipment can be employed and special integrated machine paving equipment can be employed for construction, the technical threshold and the investment cost of the ultra-thin abrasion layer used for the road are reduced, and at the same time, the ultra-thin abrasion layer is guaranteed to be waterproof, the ultra-thin abrasion layer used for the road is provided with the anti-sliding performance same as an open gradation or semi-open gradation asphalt mixture, and application and development of the ultra-thin abrasion layer technology in China are promoted.
Owner:厦门华特公路沥青技术有限公司
Automotive friction assist system with improved traction
InactiveUS20140081515A1Increase static frictionGreat tractionDigital data processing detailsPassengers carsMomentumStatic friction
An automotive friction assist system with improved traction enables a motor vehicle to stop quickly and start easily on low friction surfaces, such as those present during icy conditions. The system operates by introducing more static friction points between the leading contact edges of wheels of a motor vehicle. Additionally, the present invention provides a sensor to activate the friction assist system when the road surface temperature is at or near the freezing point of water. The friction assist system will increase static friction on a road surface and aid an ABS system on a vehicle to bring the vehicle to a stop in less distance than otherwise possible. The friction assist system will also increase static friction and aid a motor vehicle's wheel slip regulator when a vehicle is attempting to gain traction or forward drive momentum.
Owner:GOULET PETER E
Automatic snow-removing method
InactiveCN101260640AIncrease profitHigh utilization rate and high economic benefitHeat pumpsOther heat production devicesSnow removalNon real time
Owner:西安普众科技有限公司
Monitoring system for road ice
InactiveCN105761503APrevent false detectionRoad vehicles traffic controlMonitoring systemSignal amplifier
The present invention discloses a monitoring system for road ice. The system comprises an image acquisition device, a road ice detector, and a display terminal. The road ice detector comprises a road surface temperature sensor, a road surface humidity sensor, a rain sensor and a monitoring controller. The output ends of the road surface temperature sensor, the road surface humidity sensor and the rain sensor are connected to the input end of a signal switching device, and the output end of the signal switching device is connected to the input end of a filter. The output end of the filter is connected to the input end of a signal amplifier. The output end of the signal amplifier is connected to the input end of the monitoring controller through an A / D chip 10. The output end of the monitoring controller and the output end of the image acquisition device are connected to the input end of the display terminal. The monitoring system prevents error detection, once the signal controller sends a road icing signal, through the image information received in the display terminal, the icing signal and the image are combined to judge the road ice, and measures are taken timely.
Owner:王益
Prediction method and prediction system for pavement ice formation early warning time
ActiveCN104134098ASolve the technical problem of forecasting in advanceSolve the technical problems of accurate forecastingForecastingInformation processingAtmospheric sciences
The invention relates to a prediction method and a prediction system for the pavement ice formation early warning time. The prediction method comprises the following steps that: a pavement ice formation sensor detects the road surface temperature of a current road section in real time; the pavement ice formation sensor carries out ice formation detection in the first time when detecting that the first road surface temperature is lower than or equal to the early warning temperature; the actual pavement ice formation temperature and the second road surface temperature are detected in the second time, and are uploaded to an information processing system; and the information processing system carries out calculation to obtain the early warning time. The method and the system have the characteristics that the early warning time of ice formation possibly occurring on the pavement can be precisely and dynamically predicted in real time, and the technical problem of pavement ice formation prediction on highway high-risk road sections can be effectively solved.
Owner:CHINA ACAD OF TRANSPORTATION SCI +1
Black ice early warning device and black ice early warning method
The invention provides a black ice early warning device and a black ice early warning method, which relate to the field of traffic and transportation. According to the device and the method of the invention, the surface resistance and the road surface temperature of a to-be-detected road surface area and the atmospheric temperature above the to-be-detected road surface area are detected; if the surface resistance is in a preset threshold range, the change rate of the road surface temperature along with time and the change rate of the atmospheric temperature along with time in a preset time period are both smaller than 0, and the road surface temperature is larger than 0, the black ice forming future time is calculated according to the absolute value of the difference between the road surface temperature and the atmospheric temperature, the change rate of the road surface temperature along with time at the current time and the road surface temperature at the current time. The black ice early warning device and the black ice early warning method can calculate the black ice forming future time, a working staff is reminded to remove accumulated water or an ice water mixture before the black ice forming time or to provide a safety driving hint for drivers after the black ice forming time.
Owner:杭州尊鹏信息科技有限公司
Pavement and pipe rack combined system with double functions of drainage and automatic snow melting
InactiveCN107326769AIncrease profitRealize the function of regulating and storing waterArtificial islandsIn situ pavingsSnow meltingSewage
A combination system of pavement and pipe gallery with drainage and automatic snow melting, including road (1), drainage ditch (2), pipe gallery (3), cover plate (10), green belt (12), sewage pipe (14) , rainwater pipe (15), ventilation hole (21), drainage pipe (22); the two sides of the road (1) are provided with a drainage ditch (2) with a cover plate (10) on the upper part, and the side of the drainage ditch (2) A green belt (12) is provided, and a ventilation hole (21) is arranged in the green belt (12). The ventilation hole (21) is connected with the pipe gallery (3) under the road (1). The sewage pipe (14) and the rainwater pipe (15), the rainwater pipe (15) is connected to the gutter (2) through the drainage pipe (22). The beneficial effects of the present invention are: the function of adjusting and accumulating water is realized, surface water is discharged in time in summer, and sufficient heat source is provided for the road surface prone to freezing in winter, so that the temperature of the road surface is controlled above the freezing temperature.
Owner:SHENYANG JIANZHU UNIVERSITY
Seal coat with road surface cooling function
ActiveCN103964752AImprove reflectivityReduce the temperatureClimate change adaptationAsphaltMaterials science
The invention discloses a seal coat with a road surface cooling function. The seal coat comprises the following raw materials in parts by weight: 100 parts of mineral aggregate, 0-3 parts of cement, 6-12 parts of water, 4-20 parts of emulsified asphalt, 0.2-3 parts of calamine, 0.2-3 parts of molybdenite and 0-1 part of an assistant; the seal coat adopts a micro-surfacing or a thin pulp seal coat; the emulsified asphalt is one of common emulsified asphalt, SBS modified emulsified asphalt or SBR modified emulsified asphalt; the calamine is calamine powder; the molybdenite is molybdenite powder; the assistant is a silane coupling agent or a titanate coupling agent. The seal coat with the road surface cooling function reasonably utilizes the excellent characteristics of calamine and molybdenite, can reduce the road surface temperature by 5-10 DEG C in hot summer, relieves the heat island effect in a city and the problem about track at a high temperature, and has the characteristics of skid resistance, crack control, low carbon and environmental friendliness.
Owner:CCCC HIGHWAY MAINTENANCE ENG TECH
Mobile multifunctional expressway intelligent inspection system
InactiveCN110009905ASave manpower and material resourcesImprove the efficiency of daily inspectionsMeasurement devicesDetection of traffic movementTraffic violationEngineering
The invention discloses a mobile multifunctional expressway intelligent inspection system, which comprises a movement system, an inspection system, a communication module, a data processing system, acentral control system and a power supply system, wherein the inspection system comprises an inspection control mainboard, a positioning module, a camera, a speed measurement module, a temperature sensor and an ice measurement sensor; the inspection control mainboard transmits measured information data to the data processing system through the communication module to be processed; and the data processing system transmits an image, a road surface temperature, a road surface icing analysis result and vehicle overspeed information obtained after the information data is processed to the central control system. By use of the system, road surface remaining objects, road surface diseases, road climatic conditions, road surface temperatures and road icing situations can be automatically detected in real time in an all-weather way. Meanwhile, vehicles which come and go can be subjected to speed measurement shooting to monitor traffic road situations and overspeed traffic violations, and the problems in the past that expressway inspection wastes time and labor, is low in efficiency and the like can be solved.
Owner:BEIHANG UNIV +1
High-precision non-contact type road surface temperature measuring device and method thereof
ActiveCN106644097APrecise inversionImprove accuracyPyrometry using electric radation detectorsMeasurement deviceSignal conditioning
The invention provides a high-precision non-contact type road surface temperature measuring device. The device includes an infrared optical signal detecting module, a signal modulating module and a signal collecting and processing module. The infrared optical signal detecting module realizes optical signal detection and waveband selection. The signal modulating module realizes amplification and modulation of collected signals. The signal collecting and processing module realizes functions of analog-digital conversion, temperature inversion and the like. The invention also provides a measuring method of the high-precision non-contact type road surface temperature measuring device. According to the invention, a double-detector measuring system is adopted. One of the detectors detects infrared radiation caused by temperature of the measuring device itself. The influence from the temperature of the measuring device itself is deducted when measuring the infrared radiation of a target road surface and the infrared radiation amount of the target road surface is obtained accurately, so that accurate inversion of target road surface temperature is realized and accuracy and practicality of the measuring device are improved effectively.
Owner:皖江新兴产业技术发展中心
Road weather prediction method and device, electronic equipment and storage medium
ActiveCN110599789AAccurately getAvoid traffic accidentsRoad vehicles traffic controlForecastingEngineeringElectronic equipment
The invention provides a road weather prediction method and device, electronic equipment and a storage medium. The method comprises the following steps: processing the weather forecast information ofa first future time period, historical road surface temperature observation information of a first past time period and historical road surface condition observation information of a second past timeperiod by using a pre-established road surface temperature prediction model according to acquired geographic information of a to-be-measured area, predicting to obtain road surface temperature prediction information in a second future time period, and then, obtaining road surface condition prediction information. According to the embodiment of the invention, the geographic environment, the weatherforecast information, the historical road surface temperature and the historical road surface condition are combined, the established road surface temperature prediction model is utilized to predictthe road surface temperature, and thus, the road surface temperature prediction information of the to-be-measured area can be accurately obtained. Furthermore, on the basis of obtaining the road surface temperature prediction information, the subsequent road surface condition is accurately predicted.
Owner:北京心中有数科技有限公司
Asphalt concrete surface layer construction joint treatment method
PendingCN112982069AWell graded compositionFull seamsIn situ pavingsPaving detailsArchitectural engineeringStructural engineering
The invention belongs to the field of municipal roads, highways and civil aviation, and particularly relates to an asphalt concrete surface layer construction joint treatment method. According to the method, a joint treatment scheme that firstly, an asphalt concrete surface layer is paved and re-pressed, when the temperature of a pavement is still in a high state, an edge cutter is adopted to extrude the pavement neatly by means of the self weight of a roller of a roller, and then an asphalt mixture is paved on a new paving belt and is tightly bonded through rolling is adopted. In the paving construction of the asphalt pavement, the asphalt pavement joint is treated by adopting the technical scheme, so that the compactness of the joint is improved, the bonding strength of the joint is enhanced, the pavement damage caused by joint cracking and water seepage is prevented, and great significance is achieved for improving the construction quality of the asphalt pavement and improving the engineering benefit.
Owner:CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
Novel temperature adjusting asphalt pavement structure
InactiveCN106948234AReduce the temperatureMitigate the heat island effectIn situ pavingsClimate change adaptationFiberCarbon fibers
The invention relates to a novel temperature adjusting asphalt pavement structure comprising a heat conducting asphalt upper face layer and a heat absorbing asphalt intermediate face layer. The asphalt upper face layer is mixed with carbon fibers and graphite powder to form a heat conducting asphalt structural layer. The intermediate face layer is mixed with vacuum impregnating polyethylene glycol / expanded perlite composite materials to form a heat absorbing asphalt structural layer. The novel temperature adjusting asphalt pavement structure has the advantages that the heat conducting asphalt structural layer guides pavement radiation into the asphalt intermediate and lower face layers; the heat absorbing asphalt structural layer absorbs heat through solid and liquid phase change of the composite materials, so that the temperatures of the asphalt intermediate and upper face layers are reduced simultaneously, and a pavement temperature filed is adjusted; and producing of tracing rut diseases on asphalt pavement in the high temperature weather in summer is alleviated, and the urban heat island effect is relieved while pavement performance is guaranteed.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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