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66 results about "Road surface" patented technology

A road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past, gravel road surfaces, cobblestone and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete laid on a compacted base course. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century. Road surfaces are frequently marked to guide traffic. Today, permeable paving methods are beginning to be used for low-impact roadways and walkways. Pavements are crucial to countries such as US and Canada, which heavily depend on road transportation. Therefore, research projects such as Long-Term Pavement Performance are launched to optimize the life-cycle of different road surfaces.

Navigation system realizing enhanced navigation function through camera

InactiveCN107228681AEasy accessAvoid distractionsInstruments for road network navigationHead-up displayRoad surface
The invention provides a vehicle-mounted navigation system. The vehicle-mounted navigation system comprises a vehicle-mounted GPS (Global Positioning System) antenna, a camera, an AR (Augmented Reality) head-up display and a vehicle-mounted navigation host, wherein the vehicle-mounted GPS antenna is used for locating and obtaining a world coordinate system; the camera is used for carrying out real-time image collection on a road condition ahead; the vehicle-mounted navigation host comprises a coordinate system conversion unit which is used for carrying out image recognition and analysis on a road condition image collected by the camera and converting the world coordinate system to a camera image coordinate system, a model generating unit which is used for generating a 3D (Three-dimension) model of a marching road according to the camera image coordinate system, a virtual navigation information generating unit which is used for generating virtual navigation indicating information according to the 3D model of the marching road and an output unit which is used for outputting the virtual navigation indicating information to the AR head-up display; the AR head-up display is used for projecting the virtual navigation indicating information to a windshield and realizing the effect of overlaying the virtual navigation indicating information to an actual road.
Owner:杭州海藻科技服务有限公司

Asphalt pavement leveling device

InactiveCN109944146AAchieving the goal of automated destructionEfficient collectionRoads maintainenceRoad surfaceIdler-wheel
The invention discloses an asphalt pavement leveling device. The device comprises a base, four wheels are fixedly mounted at the bottom of the base in a mode that every two wheels are symmetrical, a battery is fixedly mounted at one side of the top surface of the base, a storage bucket is fixed in the center of the top surface of the base, a pressure pump is arranged between the storage bucket andthe battery and mounted on the top surface of the base, and a guide pipe is fixedly connected to a material suction port of the pressure pump. The device has the advantages that through the arrangement of an idler wheel and a square rod, when the device meets a raised road surface, automatic pressing can be achieved to turn on and turn off a switch, and therefore the purpose of automatically damaging the raised road surface is effectively achieved accordingly; meanwhile, through the arrangement of a drum, a collecting box and a dust collector, crushed asphalt granules and debris can be effectively collected, and therefore the cleanliness of road surface construction can be effectively ensured accordingly; moreover, since the device has the functions of crushing, sweeping, filling, leveling and the like and effectively integrates various working processes together, the device can complete the road surface leveling work at one time, and the working efficiency is improved.
Owner:CHONGQING UNIV

Asphalt pavement structure suitable for Tibet plateau area and construction method thereof

InactiveCN106868972AImprove road performanceImprove bending deformationIn situ pavingsSurface layerRoad surface
The invention relates to an asphalt pavement structure suitable for the Tibet plateau area and a construction method thereof. The asphalt pavement structure suitable for the Tibet plateau area sequentially comprises a cushion layer, a semi-rigid base layer, a penetrable layer, an SBR emulsified asphalt lower sealing layer, a lower surface layer, a bonding layer and an upper surface layer from bottom to top. The construction method of the asphalt pavement structure suitable for the Tibet plateau area comprises the following steps of (1) tamping and leveling a roadbed, (2) laying the cushion layer on the roadbed, (3) laying a cement stabilized sand gravel layer on the cushion layer, (4) flatly laying a low-shrinkage super-early-strength cement stabilized macadam layer, (5) laying the penetrable layer, (6) laying the SBR emulsified asphalt lower sealing layer, (7) laying the lower surface layer, (8) laying the bonding layer, and (9) laying the upper surface layer.
Owner:QINGHAI ACAD OF TRANSPORTATION SCI +1

Crawler type fire extinguishing robot

The invention relates to a crawler type fire extinguishing robot. A shell (1) drives crawlers to operate through chain wheels (28), chains (27) and driving wheels (26b), track roller frames (23) and track rollers (22) of the track roller frames (23) are hinged to the lower ends of track roller bearing frames (21), and buffer devices (24) are connected to the upper ends of the track roller bearingframes (21). Supporting shafts (20a) are hinged to the rear parts of connecting plates (20) hinged to the middle part of the shell, and the front ends of the connecting plates (20) hinged to the middle part of the shell are hinged to the rear ends of tension roller brackets (16), and large tension rollers (3) and small tension rollers (17) are connected to the upper and lower ends of the tension roller brackets (16) separately. Spring frames (19) hinged to the connecting plates are hinged to tension devices (18), and the tension devices are connected with the tension roller brackets (16). Thecrawler type fire extinguishing robot has the following advantages that a, the crawler type fire extinguishing robot has a large supporting area, is suitable for soft and muddy road surfaces, has small rolling friction with the road surfaces and has good passing performance; and b, the crawler is provided with the tension and buffer devices, so that the ability of the crawler type fire extinguishing robot to pass over obstacles is greatly improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE

Hydraulic grab for stable pavement spreading

The invention relates to a hydraulic grab for stable pavement spreading, which comprises an installing base, a rotating base, a first grabbing section and a second grabbing section; the bottom part of the installing base is provided with a rotating base, and a hydraulic stretcher is installed in the center of the bottom part of the rotating base through a bolt; the output end of the hydraulic stretcher is fixedly connected with a pin shaft for connecting the first grabbing section with the second grabbing section; the top parts of the first grabbing section and the second grabbing section are equipped with vibrating motors through the bolt, and screens are installed on the outside walls of the first grabbing section and the second grabbing section; the edge of the outside of each screen is fixed with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected with a cover plate moveably arranged by ear blocks, and the ear blocks are arranged at the top edges of the first grabbing section and the second grabbing section. The first grabbing section and the second grabbing section are vibrated through the vibrating motor, so that materials in a grab bucket are evenly fallen from the screen, thereby realizing the purpose of uniform pavement spreading; the pavement spreading needs not to consume a lot of labor forces, and the paving efficiency is high.
Owner:JIANGSU ZISHI MACHINERY MFG

Driveway information indicating system

InactiveCN103050011AReduce operating and maintenance costsImplementation is flexibleRoad vehicles traffic controlRoad surfaceEngineering
The invention discloses a driveway information indicating system. The driveway information indicating system comprises canalization driveways and a metal detector, wherein the canalization driveways are divided in a crossing, metal pieces are embedded under the pavement of each canalization driveway, and the metal pieces are arranged according to a specified coding rule and are used for identifying different canalization driveways; and the metal detector is arranged at the bottom part of a vehicle and is used for detecting the metal pieces and the arranging mode of the metal pieces. The vehicle is also provided with a driveway screening module and a signal output module, wherein the driveway screening module is used for obtaining the driveway where the vehicle is located at present by comparing the metal piece embedding situation detected by the metal detector with a preset coding rule in real time, and the signal output module is used for indicating the situation of the driveway where the vehicle is located in a way such as sound and light to a vehicle driver. The driveway information indicating system disclosed by the invention can be combined with a crossing traffic light system, and the vehicle driver can be better indicated; and the driveway information indicating system also can be used as a traffic management tool for recording and managing illegal acts of driving not according with signs and marked liens.
Owner:ZHEJIANG INST OF COMM

Bird-eye view semantic segmentation label generation method based on inverse perspective transformation and point cloud projection

The invention relates to an aerial view semantic segmentation label generation method based on inverse perspective transformation and point cloud projection, and the method comprises the steps: data collection: synchronizing camera and laser radar data at the same moment through a synchronization signal, and enabling the time stamp difference of all camera and laser radar sensor data at each moment not to exceed a set value; data labeling: performing joint labeling on m images and n point cloud data at the same moment, marking a static area of the road surface on the images, and marking a dynamic object 3D bounding box on the point cloud; the method comprises the following steps: generating a road surface region of a BEV label through inverse perspective transformation, perspective-perspective-based on the inverse perspective transformation of affine geometry, perspective-perspective the semantic segmentation label of the road surface at each camera visual angle to a BEV canvas, splicing the semantic segmentation labels, and carrying out refined processing on a spliced picture. According to the method, the accurate aerial view semantic segmentation label is directly generated from the original image and the point cloud which are synchronized at a certain moment, so that the aerial view is prevented from being acquired and labeled in a way of aerial photography of a road surface by an unmanned aerial vehicle, and the cost is reduced.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Municipal rainwater drainage device capable of avoiding blockage and rainwater drainage method

The invention discloses a municipal rainwater drainage device capable of avoiding blockage and a rainwater drainage method, and relates to the technical field of municipal rainwater drainage. The municipal rainwater drainage device comprises a plurality of drainage bases and an anti-blockage mechanism, the drainage bases are attached together, L-shaped drainage holes are formed in the right end faces of the drainage bases, connecting bases are perpendicularly arranged on the drainage bases, the anti-blockage mechanism comprises a rotating roller, a plurality of evenly-distributed first supporting rods are arranged at the highest point of the radial side wall of the rotating roller, and a first filter screen capable of filtering rainwater impurities at the right side openings of the L-shaped drainage holes is arranged between every two adjacent first supporting rods. According to the municipal rainwater drainage device capable of avoiding blockage and the rainwater drainage method, the plurality of drainage bases are attached together and installed at the side position of a roadside roadbed, it is ensured that the lowest point of a right opening of each L-shaped drainage hole is lower than the height of the road surface, rainwater conveniently flows into the L-shaped drainage holes, meanwhile, impurity particles in the rainwater are prevented from entering the L-shaped drainage holes through the anti-blockage mechanism, the L-shaped drainage holes are prevented from being blocked, and therefore, the purpose of rainwater drainage is achieved.
Owner:广东乐华建设工程有限公司

Cyclone spraying activated carbon adsorption composite dust remover for pavement maintenance truck

PendingCN113926275ASimple structureSimple operation and maintenanceCombination devicesActivated carbonVentilation tube
The invention discloses a cyclone spraying activated carbon adsorption composite dust remover for a pavement maintenance truck. The dust remover comprises a dust remover body, the dust remover body comprises a cyclone cylinder, a spraying device and an activated carbon box which are sequentially connected through ventilation pipes, the cyclone cylinder is composed of an inner cylinder body and an outer cylinder body, a spiral plate is arranged between the inner cylinder body and the outer cylinder body, the spiral plate is wound on the outer side wall of the inner cylinder body, an ash discharge port is formed in the bottom of the outer cylinder body below the spiral plate, a spraying air inlet is formed in the side body of one side of the outer cylinder above the ash discharge port, an air inlet is formed in the bottom of the inner cylinder, an air outlet is formed in the top of the inner cylinder body, the air outlet is connected with the air inlet through a ventilation pipe, a spraying air outlet is further formed in the spraying device and connected with an inlet formed in the activated carbon box through a ventilation pipeline, activated carbon is placed in the activated carbon box, and a gas exhaust port is further formed in the activated carbon box. The dust remover has the characteristics of reasonable structure, easiness in maintenance, good filtering effect and the like.
Owner:ZHEJIANG MEITONG ROAD CONSTR MACHINERY

Odorless asphalt mixture, preparation method thereof and application of odorless asphalt mixture on pavement

ActiveCN111234541AHigh strengthImprove rheologyIn situ pavingsBuilding insulationsVegetable oilCarbon nanotube
The invention discloses an odorless asphalt mixture, a preparation method thereof and an application of the odorless asphalt mixture on a pavement, and the preparation method comprises the following steps: carrying out low-temperature plasma modification on a graphdiyne nano material to obtain a graphdiyne modified solution; mixing 1-10 parts by weight of magnesium hydroxide, 1-2 parts by weight of TEOS, 1-5 parts by weight of vegetable oil, 1-10 parts by weight of SBS and 1-2 parts by weight of an odor inhibitor to obtain an asphalt composite modifier; heating the matrix asphalt to 150 to 170DEG C; then adding an asphalt composite modifier and graphdiyne modification liquid; wherein the weight ratio of the matrix asphalt to the asphalt composite modifier to the graphdiyne modification liquid is 100: (1-5): (10-25), shearing and heating to 185-220 DEG C, shearing and swelling for 0.5-2 hours, then cooling to 170-180 DEG C to obtain the odorless asphalt mixture, drying and packaging toobtain the odorless asphalt mixture. By selecting a novel nano material graphdiyne, compared with traditional materials such as graphene and carbon nanotubes, the optimization efficiency of the performance of the odorless asphalt is higher.
Owner:湖南省溆怀高速公路建设开发有限公司

In-plant full-grade-level multifunctional minitype carrying trolley

The invention discloses an in-plant full-grade-level multifunctional minitype carrying trolley which comprises a rubber crawler-type chassis, a working operation table and a working device. The rubber crawler-type chassis comprises a trolley frame, crawlers and wheels. The crawlers and the wheels are arranged on the two sides of the trolley frame. The crawlers are driven by the wheels. An engine is arranged in the trolley frame. The operation table, a pedal and the working device are arranged at the top end of the trolley frame. The pedal is arranged on one side of the operation table. The working device is arranged on the other side of the operation table. The working device comprises a cargo fork, a fork frame and a portal. The portal is fixed on the trolley frame. The fork frame is fixed on the portal and can move up and down in a straight line along the portal. The cargo fork is fixed on the fork frame. A lifting hydraulic cylinder which is used for driving the fork frame to move up and down is fixed on the portal. The in-plant full-grade-level multifunctional minitype carrying trolley has the advantages that object carrying in a plant is very convenient, object conveying efficiency is improved, the trolley can be adaptive to at least 90% of road surfaces in the plant, and adaptability is high.
Owner:STATE GRID CORP OF CHINA +2

Cutting, refilling and repairing device for bridge pavement cracks

The invention discloses a cutting, refilling and repairing device for bridge pavement cracks, comprising a repair vehicle, wherein an in-vehicle cavity with a downward opening is formed in the repairvehicle; a slide cavity is formed in the right wall of the in-vehicle inner cavity in a communicating mode; a hydraulic rod is fixedly connected to the lower wall of the slide cavity; a motor shell isfixedly connected to the upper end of the hydraulic rod; a motor is fixedly arranged in the motor shell; a main screw is in power connection to the left end of the motor; and a cutting wheel swing barrel is rotatably connected on the main screw. The cutting, refilling and repairing device for bridge pavement cracks provided by the invention can repair wider cracks in a concrete bridge deck, usesa cutting wheel with an adjustable cutting direction to cut slots around the cracks, uses a chiseling hammer which works in a reciprocating mode to chisel away cracked cement in the slots, and fills repairing stuffing into the slots to level off, thereby reducing manual operation and saving time and labor.
Owner:JIANGSHAN HONGLI PROD DESIGN CO LTD

Regeneration process of waste asphalt micro powder

InactiveCN105603845AIn situ pavingsRoad surfaceEngineering
The invention provides a regeneration process of waste asphalt micro powder. The process comprises the following steps: milling an asphalt concrete pavement, wherein the milling thickness of the first layer is 1-5cm, and the milling thickness of the second layer is 5-10cm; sieving the milling material of the first layer, and mixing the obtained particles with the particle sizes of 10-31.5mm with emulsified asphalt, hydroisomerized residue oil and the like for regeneration; and crushing the milling material of the second layer, sieving and collecting particles with the particle sizes of 10-20mm, and mixing the obtained particles with fine particles of the milling material of the first layer, residue oil and the like for regeneration. According to the method, the waste asphalt in the milling material can be fully recycled in relatively low cost, and meanwhile, road paving requirements can be well met.
Owner:BEIJING AURORA ENVIRONMENTAL PROTECTION SCITECH INST

Calculation method for asphalt and aggregate stripping rates of asphalt pavement

ActiveCN109596456ARealisticEasy to operateWeighing by removing componentPreparing sample for investigationPavement engineeringRoad surface
The invention discloses a calculation method for asphalt and aggregate stripping rates of an asphalt pavement. The method comprises the following steps: 1) a water boiling method is used for treatingan aggregate wrapped with asphalt, and the asphalt stripping rate of the aggregate wrapped with the asphalt after water boiling is calculated; 2) a water damage sensitivity tester is used for simulating a real water damage mode of the pavement, the asphalt stripping rate of the aggregate wrapped with the asphalt after dynamic water damage is calculated, the stripping rate after the dynamic water damage treatment and the stripping rate after the water boiling are fitted, and a relation between the asphalt stripping rates after the dynamic water damage and the water boiling damage is obtained; and 3) the actual damage life of the asphalt pavement is calculated by utilizing the temperature, the pressure and the frequency of the water damage sensitivity tester, and the asphalt and aggregate stripping rates of the actual pavement in different years are calculated. The asphalt and aggregate stripping rates of the asphalt concrete pavement in the different years are calculated through the water boiling method; the quantitative calculation is carried out; and the operation is convenient, the cost is low, the reliability of a test result is high, and the engineering practice of the pavementis met.
Owner:WUHAN UNIV OF TECH

Streetlamp capable of monitoring illegal activities on roads

InactiveCN104712981AReduce the chance of running a red lightMechanical apparatusElectric circuit arrangementsElectricityDriver/operator
The invention belongs to the technical field of streetlamps, and particularly relates to a streetlamp capable of monitoring illegal activities on roads. The streetlamp comprises a lamp cover, an illuminating lamp and a lamp pole. A sampling monitor is arranged in the middle of the upper half part of the front face of the lamp pole, and a speed measurement device is arranged in the middle of the front face of the lamp pole. The speed measurement device and the sampling monitor are in series connection and are electrically connected with a power source through a control chip. A buzzer is arranged on the lower half part of the front face of the lamp pole and is connected with adjacent traffic lights through the control chip. When the traffic lights change from green to yellow, the control chip controls the buzzer to give out an alarm, and warnings are given to pedestrians and drivers. The sampling monitor monitors the condition of road traveling and the condition of the pedestrians at any time, and the speed measurement device is used for measuring the traveling speed of drivers; when the traveling speed measured by the speed measurement device exceeds the set maximum speed, the control chip controls the sampling monitor to conduct sampling. Accordingly, the warnings are given to the pedestrians and the drivers, and the probability of running the red light is reduced; furious driving vehicles are also recorded, so that the streetlamp can assist the traffic police in handling the problem of illegal activities on roads.
Owner:XIAN LINZI SEMICON LIGHTING
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