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220results about How to "Driving comfort" patented technology

High-precision map-based cloud control automatic driving task generating method

The invention discloses a high-precision map-based cloud control automatic driving task generating method. The method comprises the following steps: acquiring GPS information of a road by using centimeter-level high-precision positioning equipment, performing coordinate rotating conversion on a GPS track, performing curve fitting and selecting high-precision points to acquire the GPS sequence of a lane level of each road, establishing a high-precision map suitable for automatic driving and storing in a cloud server; and in the actual automatic driving stage, receiving an initial position and destination combined high-precision map and vehicle information in a global range from a vehicle by a cloud side, generating the route of the lane level, planning a driving task from the route of the lane level to form a task sequence, and issuing to the vehicle to perform execution and realize automatic driving. By the high-precision map-based cloud control automatic driving task generating method, hardware calculation resources of the internet and the cloud side are effectively utilized, and the complexity and the cost of the vehicle are reduced; and the cloud side masters the global traffic information, application of cloud processing, big data and artificial intelligent technology is benefited, and the automatic driving technology can be iterated and improved rapidly.
Owner:ZHEJIANG UNIV

Concrete integral pouring construction method and device for road inspection well

InactiveCN101718101APrevent slippingResistance to the effects of horizontal thrustArtificial islandsUnderwater structuresProduct inspectionReinforced concrete
The invention provides concrete integral pouring construction method and device for a road inspection well. The method comprises advance constructions and post constructions, wherein the advance constructions comprise the following steps of: measuring and paying off; excavating a wellhole; pouring a reinforced concrete foundation bottom and building a wellhole protection wall; connecting pipelines; building a well chamber; mounting a tread; backfilling well perimeters; reserving a branch pipe; building a close up section; mounting a cover plate; building the wellhole; covering and protecting; backfilling cement and stone dust to the well perimeters; and constructing a pavement basic layer. The post constructions comprise the following steps of: excavating the pavement basic layer covered on the wellhole to expose the wellhole, dismantling the cover plate and excavating a concrete foundation pit by using the wellhole as a center, wherein the radius of the excavated foundation pit two times larger than or equal to that of the wellhole; laying reinforcing steel bars in the foundation pit and supporting an inner mold in the wellhole; overhanging a well cover on the wellhole by a fixing bracket overhanging device; adjusting the altitude of the well cover; pouring concrete into the foundation pit and keeping the height of the concrete parallel to the bottom of the well cover; building the perimeters of the well cover into a cement slope by concrete; carrying out acceptance checks; paving a bituminous pavement on the perimeters of the well cover and keeping the bituminous pavement parallel to the well cover.
Owner:JINAN URBAN CONSTR GRP

Early warning service management system based on remote expert service

The invention relates to an early warning service management system based on remote expert service. In the system, sensors based on hybrid automatic repeat request (ARQ) technology collect the grouped data of a bridge; the machine to machine (M2M) technology is adopted to monitor the information between the intelligent sensor devices, the monitoring information is transmitted remotely in a wireless digital manner; a terminal collector performs bidirectional data transmission on the monitoring information through a terminal remote transport protocol and an intelligent network platform, the data collected by the terminal collector are compared with the stress simulation database information of the bridge design and off-design small probability state finite element computation structure established by an expert service system, the comparison result is used for evaluating and processing; early warning is performed according to the comparison and evaluation result of the condition and monitoring information of the bridge; and when the monitoring data are abnormal or the warning level is higher, the system automatically sends a message to an expert and the expert can give corresponding handling advices and measures timely, thus the timely and dynamic management of information can be realized.
Owner:中冶(北京)交通科技发展有限公司

Corrugated steel web prestressed concrete continuous box girder and construction method thereof

The invention discloses a corrugated steel web prestressed concrete continuous box girder. In the box girder, after being fixedly connected with a corresponding steel bar in a cast-in-place member, transverse steel bars of a precast concrete top plate, a precast concrete bottom plate and a precast concrete beam or a precast concrete diaphragm plate of two adjacent corrugated steel web prestressed concrete flanged beam units which are erected are connected by a cast-in-place concrete top plate between the adjacent precast concrete top plates, a cast-in-place concrete bottom plate between the adjacent precast concrete bottom plates and a cast-in-place concrete beam or a cast-in-place concrete diaphragm plate between the adjacent precast concrete beams or precast concrete diaphragm plates to form closed box girders; and external prestressed bars in the closed box girders are pulled and anchored, the closed girders corresponding to two adjacent holes are connected by pouring cast-in-place concrete longitudinal beams, hogging moment prestressed bars on pillar tops are pulled and anchored, and temporary supports are removed to form the continuous box girder. The corrugated steel web prestressed concrete continuous box girder has the characteristics of high stressed performance, high utilization rate of materials and obvious economic benefit, and is easy and convenient to construct.
Owner:HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD

Anti-settling manhole cover and construction method thereof

The invention belongs to the technical field of municipal engineering, and particularly relates to an anti-settling manhole cover and a construction method of the anti-settling manhole cover. The anti-settling manhole cover comprises a support seat and a cover plate which is arranged on the support seat in a buckled mode. The anti-settling manhole cover is characterized in that the support seat is fixedly provided with a flange plate in a connected mode, the lower portion of the support seat is inserted into an adjusting ring, adhesive tape is arranged between the support seat and the cover plate, and an elastic locking device mounted on the support seat is arranged below the adhesive tape. The anti-settling manhole cover and the construction method of the anti-settling manhole cover have the advantages that the problems that the periphery of a manhole is loose, cracks and is settled, the manhole cover is missing, a vehicle bumps when passing through the manhole cover, noise is generated, and the like are solved; the manhole cover is perfectly connected with a road surface around the manhole cover, the height of the manhole cover is the same as that of the road surface around the manhole cover, the flatness can meet road surface acceptance criteria, the overall flatness of the road surface is guaranteed, and the good effects that the road surface is attractive and a driver feels comfortable when driving on the road surface are solved; the structural integrity is improved, the periphery of the manhole does not sink, and the manhole cover is not prone to loss and damage; and the anti-settling manhole cover and the construction method of the anti-settling manhole cover have a wide application scope in manhole cover installation and reinforcement projects in the municipal engineering and have popularization value.
Owner:JINAN URBAN CONSTR GRP

Elastoplastic device for expansion joints in buildings and road engineering

The invention discloses an elastoplastic device for expansion joints in buildings and road engineering. The elastoplastic device comprises a cast-in-place concrete layer and a bituminous concrete pavement layer arranged on the upper end of the cast-in-place concrete layer, wherein the center of the cast-in-place concrete layer is provided with an expansion joint filled with sponges or foams; the center of the bituminous concrete pavement layer is provided with a notch which is filled with expansion elastomers and broken stones and is internally provided with a cover plate; lower expansion bolts are symmetrically arranged around the upper part of the cast-in-place concrete layer; lateral expansion bolts are symmetrically arranged around the inner side of the bituminous concrete pavement layer; and steel bars are arranged between the end parts of the lateral expansion bolts and the lower expansion bolts. The device disclosed by the invention has the advantages of simple structure and reasonable design, and is convenient and rapid in construction; the performance requirements of the expansion joints can be met, special expansion members are not needed to be arranged, and the problem of short service life of other expansion devices under small stroke can be effectively solved; and the device disclosed by the invention has the characteristics of good elasticity and neat and beautiful appearance, and can bear vehicle load.
Owner:西安达盛隔震技术有限公司

Continuous box girder made of corrugated steel web pre-tensioned prestressed concrete and construction method

The invention discloses a continuous box girder made of corrugated steel web pre-tensioned prestressed concrete. A plurality of I-shaped beam elements precast by a plurality of corrugated steel web pre-tensioned prestressed concrete are erected and installed on an abutment, precast concrete top plates, precast concrete bottom plates, and transverse reinforcements of precast concrete beams or diaphragm plates of each two adjacent I-shaped beam elements are fixedly connected with reinforcing steel bars in corresponding cast-in-place members, and then a cast-in-place concrete top plate between each two adjacent precast concrete top plates, a cast-in-place concrete bottom plate between each two adjacent precast concrete bottom plates and a cast-in-place concrete beam or transverse diaphragm plate between each two adjacent precast concrete beams or transverse diaphragm plates are connected with one another to form closed box girders. Each two adjacent closed box girders are connected with each other by pouring cast-in-place concrete longitudinal beams, thus forming the continuous box girder. Pre-tensioned prestressed tendons are arranged in bottom plate bodies of the precast I-shaped beam elements; and pier top hogging moment prestressed tendons are arranged in the cast-in-place concrete top plates of the closed box girders.
Owner:HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD

All-terrain four-wheel-drive cross country vehicle chassis and vehicle thereof

ActiveCN102431592AClimbing over obstacles easily and powerfullyImprove passabilityUnderstructuresResilient suspensionsTerrainVehicle frame
The invention discloses an all-terrain four-wheel-drive cross country vehicle chassis and a vehicle thereof. The all-terrain four-wheel-drive cross country vehicle chassis comprises a front axle, a rear axle, a back axle, a front connecting shaft, a rear connecting shaft and an adjuster, the front axle is connected with two front wheels, the rear axle is connected with two rear wheels, the back axle is respectively connected with the front axle and the rear axle through a first H-shaped swing frame and a second H-shaped swing frame, and comprises a plurality of rectangular supporting frames in mutual connection, the rectangular supporting frames are used for connecting a frame, the adjuster arranged between the front connecting shaft and the rear connecting shaft is used for adjusting four driving wheels of the front axle and the rear axle to adapt to the height of the ground, the front connecting shaft and the rear connecting shaft penetrate through the front and rear of each supporting frame in the front direction and the rear direction of the vehicle respectively, the front connecting shaft is connected with the first H-shaped swing frame, and the rear connecting shaft is connected with the second H-shaped swing frame. By the aid of the chassis, when the vehicle runs on road surfaces with extremely large height difference, the height of each wheel can be adjusted automatically to adapt to the uneven ground.
Owner:李建伟
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