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Intersection lane division and signal timing cooperative control method in automatic driving environment
PendingCN119495201AImprove traffic efficiencytraffic safetyControlling traffic signalsArrangements for variable traffic instructionsTraffic capacitySimulation
The invention relates to an intersection lane division and signal timing cooperative control method in an automatic driving environment, and belongs to the field of intelligent traffic. According to the method, lane function division schemes in corresponding directions are published by using lane function adjustment marks, signal timing schemes in corresponding directions are published by using lane-level signal lamps, and personalized suggestion schemes are pushed to network-connected automatic driving vehicles by using a network-connected communication technology, so that lane-level and vehicle-level refined intelligent management and control are realized, and the intelligent management and control efficiency is improved. The intersection traffic efficiency is improved, and intersection road traffic resources are utilized to the maximum extent. According to the invention, the problem of insufficient management refinement of the plane intersection can be overcome, the traffic capacity of the intersection is improved, traffic congestion is reduced, and the utilization rate of road traffic resources is improved.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
Movable ramp of large automobile roll-on-roll-off transport ship and mounting method
PendingCN119239845Atraffic safetyGuaranteed stabilityDetachable decksCargo handling apparatusHull structureStructural engineering
The invention relates to the technical field of ship roll-on and roll-off equipment, and discloses a large automobile roll-on and roll-off transport ship movable ramp and a mounting method.The large automobile roll-on and roll-off transport ship movable ramp comprises a first hinge mount, a first ramp joint is rotatably arranged on the first hinge mount, and a second ramp joint is arranged at the end, away from the first hinge mount, of the first ramp joint; the end, away from the first ramp joint, of the second ramp joint is connected with a third ramp joint, a second hinge seat is arranged on the surface of the upper end of the hull structure and located on the inner side of the first hinge seat, a hinge shaft is arranged on the second hinge seat, and the second hinge seat is rotationally connected with the end of the third ramp joint through the hinge shaft. According to the movable ramp of the large automobile roll-on-roll-off transport ship, by arranging the supporting assembly and pulling out the positioning plug pin, when the third ramp section is lifted, the sliding block can slide along the rail base, then the positioning pin is clamped into the positioning hole, it is guaranteed that the position of the sliding block is fixed, then the supporting rod can effectively support the third ramp section, and the requirement for safe passing of automobiles is met.
Owner:上海外高桥造船海洋工程有限公司
Dynamic cooperative control system and method for special lane and general lane in automatic driving environment
PendingCN119495202AImprove traffic efficiencyGuaranteed uptimeArrangements for variable traffic instructionsDetection of traffic movementControl systemSimulation
The invention relates to a dynamic cooperative control system and method for a special lane and a universal lane in an automatic driving environment, and belongs to the field of intelligent traffic. The method comprises the following steps: S1, establishing a special lane and general lane dynamic cooperative control system in an automatic driving environment; s2, detecting traffic flow data of various types of vehicles on different lanes between different sections of a road in real time by each group of roadside control units, realizing lane-level road traffic state monitoring, and determining a suggested lane function division scheme, a lane type division scheme, a lane-level variable speed limiting scheme and a lane opening and closing scheme through an optimization decision algorithm; and S3, issuing various schemes of corresponding sections by each group of roadside control units, and pushing the personalized suggested schemes to the network-connected automatic driving vehicle. According to the invention, the fine road management level is improved.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
Traffic transportation scheduling method based on visual identification
PendingCN119418522AImprove traffic efficiencyease traffic congestionDetection of traffic movementTraffic predictionSimulation
The invention relates to the field of traffic transportation, and discloses a traffic transportation scheduling method based on visual identification, comprising the following steps: installing camera devices at a plurality of traffic nodes for collecting traffic flow image data in real time; preprocessing the image data, wherein the preprocessing comprises image denoising, resolution adjustment and lane area division; vehicle detection and classification are carried out on the image data through a deep learning model, and the position, the speed, the driving direction and the vehicle type of the vehicle are identified; performing cross-frame tracking on the detected vehicles by using a multi-target tracking algorithm to generate a real-time trajectory of each vehicle; and predicting the future traffic flow based on the long and short-term memory network model, and generating a flow change trend in a future period of time. Through visual identification and real-time flow prediction, the system can identify traffic jam points in advance and make an intelligent scheduling decision, thereby effectively reducing traffic jam and improving vehicle passing efficiency.
Owner:SHANDONG UNIV OF TECH
A multi-functional transport vehicle for enlarging inclined shafts
ActiveCN224282718USimultaneous transportTimely classification managementFencingTunnelsVehicle frameClassical mechanics
A multi-functional transport trolley for inclined shaft widening includes a vehicle frame, a traveling mechanism, a transport platform, an unloading channel, and a pedestrian ladder. The top of the inclined surface of the vehicle frame is equipped with lifting lugs. The transport platform is fixed to the top of the vehicle frame and includes a platform steel plate, guardrails, and a detachable partition fence. The platform steel plate is fixedly connected to the top of the vehicle frame around its perimeter, and the guardrails are installed around the transport platform. The detachable partition fence is telescopic and is fixed to the guardrails with snap-fit fasteners. The platform steel plate has an unloading hole and a manhole, both with covers. An unloading channel is provided on the inclined surface of the vehicle frame below the unloading hole, and a pedestrian ladder is provided on the inclined surface of the vehicle frame below the manhole. The traveling mechanism is symmetrically installed on both sides of the inclined surface of the vehicle frame. This transport trolley uses detachable partition fences to freely divide the transport platform, enabling simultaneous transport of personnel and materials, improving transport efficiency and ensuring personnel safety.
Owner:中国水利水电第七工程局有限公司
Underground coal mining safety protection method and system
PendingCN119541171Areal-time monitoringtraffic safetyCharacter and pattern recognitionClosed circuit television systemsImage pairTime data
The invention discloses an underground coal mining safety protection method and system, and relates to the technical field of underground safety protection, and the method comprises the steps: installing a high-definition camera and a sensor, and collecting the real-time video and data of a safety channel; extracting images from the real-time video frame by frame, and preprocessing the images; inputting the preprocessed image into a YOLOv7 model, and detecting obstacles and wall cracks in the image; analyzing the real-time data, and judging whether an abnormal condition exists or not; the detection condition and the abnormal condition are transmitted to a security channel monitoring center for early warning; when emergency evacuation is needed underground, an underground positioning system is used for determining the position of a person, an instant notice is sent through an application program, and a safe channel without problems is indicated to the person. According to the invention, early warning of abnormal conditions in the safety channel is carried out to ensure safe passage of the safety channel in emergency; when emergency evacuation is needed underground, navigation guidance is provided for personnel, so that the personnel can quickly arrive at a safety channel.
Owner:HUANENG COAL TECH RES CO LTD
Risk-avoiding construction channel for leading existing train tunnel to transverse channel and construction supporting method of risk-avoiding construction channel
PendingCN119435011Atraffic safetyeffective isolationRailway transportTunnelsArchitectural engineeringStructural engineering
The invention relates to a danger-avoiding construction channel leading from an existing train tunnel to a transverse channel and a construction supporting method of the danger-avoiding construction channel. The danger-avoiding construction channel comprises a special-shaped channel shell, buckles and expansion bolts. The special-shaped channel shell is of a strip-shaped channel structure which is closed in the circumferential direction and provided with two open ends, and the buckle is arranged on the outer side face of the special-shaped channel shell. The expansion bolts are arranged on the side wall, close to the transverse channel, in the tunnel in advance. When the transverse channel needs to be constructed, the special-shaped channel shell is hung on the expansion bolts on the side wall in the tunnel through the buckles. The transverse channel is effectively isolated from a train rail running area, piston wind generated by train running is prevented from influencing the transverse channel, the construction channel leading to the transverse channel is constructed, construction materials can be transported into the existing tunnel during train running, constructors can safely pass, and the construction efficiency is improved. The construction safety in the existing train tunnel is guaranteed, and the construction efficiency is improved.
Owner:XIAN RAILWAY SURVEY & DESIGN INST CO LTD
Vehicle control method, program product, and vehicle
The present disclosure relates to a vehicle control method, a program product and a vehicle. The vehicle control method is applied to a first vehicle and includes: in a case where the first vehicle is to change lanes to a target lane, determining a perceived second vehicle; generating N pieces of candidate trajectory information of the first vehicle; generating predicted trajectory information corresponding to M predicted driving conditions of the second vehicle, the M predicted driving conditions including predicted driving conditions with different occurrence probabilities; determining a target generation value of each trajectory combination in a plurality of trajectory combinations; and controlling the first vehicle to travel according to candidate trajectory information in a trajectory combination corresponding to a minimum target generation value. By the above scheme, the predicted driving conditions of the second vehicle with different occurrence probabilities are considered, the frequent jumping phenomenon of the first vehicle driving trajectory decision is reduced, the collision risk is reduced, and the safety and efficient passing of the first vehicle in the lane changing process are ensured.
Owner:BEIQI FOTON MOTOR CO LTD
High-speed center parting zone concrete pouring system under island type traffic keeping mode
ActiveCN222275284Utraffic safetyImprove efficiencyBridge applicationsBridge erection/assemblyArchitectural engineeringCarriageway
The utility model provides a concrete pouring system for a high-speed median strip in an island type traffic keeping mode, which comprises a precast concrete block arranged in the high-speed median strip, and a first steel pipe column is fixed at the top of the precast concrete block; second steel pipe piles are fixed to the outer portion of one side of the highway through a cast-in-place concrete foundation, double-spliced I-shaped steel is fixed to the tops of the first steel pipe columns and the tops of the second steel pipe piles correspondingly, and a bailey beam stretching across the highway is installed between the tops of the double-spliced I-shaped steel. A ground pump guide pipe used for conveying concrete is installed on the bailey beam, the inlet end of the ground pump guide pipe is connected with a ground pump used for pumping the concrete, the ground pump is arranged on the outer side of the highway, and the outlet end of the ground pump guide pipe is arranged in the area where the high-speed halving zone is located. The purpose of safely and rapidly pouring concrete of the high-speed median strip structure is achieved by building a system crossing a high-speed traffic lane.
Owner:CHINA GEZHOUBA GROUP NO 5 ENG
Railway crossing pavement capable of being conveniently laid
ActiveCN222390168UEasy to installfast constructionTemporary pavingsTrackwayArchitectural engineering
Owner:宣化钢铁集团有限责任公司 +1