21 results about "Ring road" patented technology

The invention discloses a multi-agent path planning method and related equipment, and relates to the technical field of artificial intelligence, and the method comprises the steps: responding to a multi-agent path planning instruction, determining a plurality of agents of a to-be-planned path, determining the priority of each agent of a current planning node, and based on the priority, determining the path of the current planning node; and determining a first grid map corresponding to the current planning node, and planning a grid where each multi-agent is located at the next planning node based on the one-way traffic constraint state of each loop in the first grid map and the priority. According to the method, the corresponding one-way passing constraint state of each loop in the current planning node is determined based on the priority, the motion direction of each agent in each loop corresponding to the current planning node is ensured to be uniform, then narrow channel conflicts are avoided, and the task completion efficiency of multiple agents is improved.

The application relates to the technical field of vehicles, in particular to a long-time-domain driving behavior decision method suitable for high-speed and loop traffic scenes, which comprises the following steps: acquiring a global planning path of a vehicle, a current motion state of the vehicle and current motion states of all surrounding vehicles in a region; generating an optimal driving behavior sequence of the vehicle according to the global planning path, the current motion state of the vehicle and the current motion states of all surrounding vehicles in the region; planning a driving track of the vehicle based on a first driving behavior of the optimal driving behavior sequence, and regenerating the optimal driving behavior sequence after the vehicle executes the first driving behavior based on the driving track, until the global planning path is completed. Therefore, the embodiment of the application can realize multi-step decision of driving behaviors such as lane-changing gap selection and lane-changing overtaking, has foresight, and simultaneously gives an optimal solution to long-time-domain driving behavior sequence planning based on feasibility discrimination, considers safety and high efficiency, and meets the needs of general driving.

This invention relates to the field of template joint reinforcement technology, and more particularly to a template joint reinforcement device for underground ring road construction. The device includes multiple templates, a sealing component, a reinforcement component, and a support component. The sealing component includes insert iron plates installed between the multiple templates. These insert iron plates are used to grind the sidewalls of the templates and fill the gaps between them. One end of each insert iron plate is fixedly fitted with a reinforcement iron plate to prevent cement leakage, and the reinforcement iron plate and the insert iron plate form a T-shape. This invention, by installing insert iron plates between the templates, grinds the splicing surfaces between the templates, making the mating surfaces smoother and improving the splicing effect. The reinforcement iron plates prevent cement leakage from the splicing joints, and the sealant and sealing strips further enhance the sealing effect of the templates. The interaction between the components reinforces the position of the templates layer by layer, improving their stability. This eliminates the need for additional bolts or other components, saving engineering materials.

The invention discloses a method for establishing an independent coordinate system of segmented projection engineering of an annular road, and relates to the technical field of road management.The method comprises the steps that firstly, on the basis that a coordinate system of a user-defined central meridian and an elevation compensation plane is established, segmentation operation and projection plane setting operation are conducted on the annular road, and a road section corresponding to the annular road is obtained; secondly, obtaining a segmentation weight coefficient corresponding to each road section in the annular road, and obtaining a Lagrange multiplier according to all the segmentation weight coefficients; then obtaining a terrain curvature correction factor corresponding to each road section in the annular road, and obtaining a comprehensive allocation weight according to the terrain curvature correction factors and the segmentation weight coefficients; and finally, on the basis of the comprehensive distribution weight, obtaining the coordinate correction value of the control point of each road section, and revising the control point of each road section according to the coordinate correction value of the control point of each road section, so that the problem of cracks existing in the annular road constructed in the prior art can be effectively solved.

The invention discloses an ultra-efficient energy-saving road and method for reducing air resistance of vehicles, trains, ships and the like to be close to zero. According to the principle that a ball and air pushed by the ball run at a high speed in the same system and in the same direction almost without friction in a sealed ring, a channel is divided into a left channel 1 and a right channel 3 which are closed, the left channel 1 and the right channel 3 are connected end to end to form a long-strip-shaped ring channel, and the connecting positions of channel bodies are communicated. High-pressure gas in front of a vehicle and a ship on the left road 1 can be directly pressed into and sucked into the right road 3, particularly sucked into a negative-pressure area behind the vehicle and the ship on the right road 3, and vice versa, so that the high-pressure gas at the head of the vehicle and the ship can automatically pass through the opposite side road to reach a low-pressure area at the tail of the vehicle and the ship, the air resistance is close to zero, the same system circulation in the shortest distance is realized, and the service life of the vehicle and the ship is prolonged. The head channel opening and the tail channel opening of the channel are open, and air cannot flow out. The defects that when vehicles, ships and the like run, air in the places where the vehicles and the ships arrive is pushed to be scattered to the outside, the tails are pulled by negative pressure, and a huge amount of energy is wasted are overcome, and therefore the huge amount of energy is saved.

The invention provides a subtropical city charging station layout optimization method and system based on climate adaptive clustering, and belongs to the technical field of city charging infrastructure planning. The problems that in existing planning, climate adaptability is insufficient, analysis of a driving mechanism is not accurate, and strategy pertinence is not high are solved. The method comprises the following steps: collecting data of a city-surrounding high-speed enclosed area of a subtropical city, and constructing an equal-area hexagonal grid with the side length of 1000m after data cleaning and coordinate conversion; a kernel density estimation method is adopted to analyze the aggregation degree of the charging stations, and adaptive features are obtained in combination with a climate adaptive DBSCAN clustering algorithm; constructing a multi-scale geographically weighted regression model by taking the density of the charging station as a dependent variable, and quantifying the influence of spatial heterogeneity; and according to clustering and regression results, providing a charging station layout scheme from driving factor guidance, a climate adaptive hierarchical strategy and a climate adaptation dimension. The method is mainly used in the subtropical city charging network construction field.

The application relates to the field of intelligent transportation, and discloses an expressway intelligent monitoring and management system, method and electronic equipment. The system collects expressway global space-time data to construct a digital twin body synchronized with the physical world. In the twin body, potential risks are identified through prediction and deduction based on a space-time causal graph. In response to the risks, an optimal intervention strategy is generated through counterfactual deduction and executed, and the prediction intervention effect is recorded. After the intervention, the real traffic state and the prediction effect are compared, the counterfactual error is calculated, and the space-time causal graph is dynamically self-corrected accordingly. The application integrates perception, prediction, decision-making, execution and feedback into an adaptive control loop, introduces a self-correction mechanism based on counterfactual error, enables the system to continuously learn and evolve from interaction with the physical world, and solves the problems of model solidification and poor adaptability of traditional traffic management systems.

The invention relates to the technical field of bus protection, and provides a bus operation state identification method and a brake coefficient identification method and system based on bus correlation, and the method comprises the steps: determining a bus correlation matrix according to the connection state of a circuit breaker and a disconnecting link in a bus topological structure; determining the correlation between the sections of buses by using the correlation coefficient of each section of bus and each interval in the bus correlation matrix, and constructing a bus correlation coefficient matrix; performing path search by using the bus correlation coefficient matrix, and identifying the running state of each section of bus; if no correlation exists between one bus section and other bus sections, the bus section is in split operation; if the correlation between the bus sections forms a loop, the bus sections forming the loop are all in closed-loop operation; and if the bus sections have correlation but do not form a loop, the bus sections which do not form the loop run in parallel. The method is simple in calculation process and can quickly judge the running state of each section of bus.

The present application relates to a kind of mixed vehicle space domain deep reinforcement learning collaborative control method for mountain ring road scene, belong to intelligent network connection traffic technical field, including the following steps: S1: establishing mountain ring road mixed vehicle fleet scene and coordinate system;Vehicle time domain horizontal and longitudinal coupling dynamics are constructed and equivalent control input is introduced, arc length variable is introduced and time inverse function is defined, and horizontal and longitudinal coupling dynamics model in space domain is constructed;S2: the slope and its confidence are calculated;The HDV trajectory of pilot vehicle is predicted;Space domain delay collaborative error is constructed;S3: space domain PPO controller is constructed, and comprehensive reward function is defined, and horizontal and longitudinal joint control action is output;S4: multiple constraint fusion compensation and action saturation projection execution are carried out.

Aspects of the disclosure provide for determining whether a vehicle is in a loop for an autonomous vehicle. For instance, a route from a current location of the vehicle to a destination for a trip may be generated. Locations traversed by the vehicle during the trip may be tracked. Locations of the route may be compared to the tracked locations to determine an overlap value. Whether the vehicle is in a loop may be determined based on the overlap value.

The invention provides a four-in-one system for a mountain and hill orchard and a construction method of the four-in-one system, relates to the crossing field of agricultural engineering and fruit tree cultivation technologies, and solves the technical problems that functions of existing orchard infrastructures are split, and mechanical passing and underground environment optimization cannot be considered at the same time. The system comprises an underground three-dimensional pipe network unit, an oxygen supply unit, a rainwater recycling unit and a ground mechanical passing unit, the underground three-dimensional pipe network unit comprises multiple layers of pipelines, and all the layers of pipelines are communicated with one another; the oxygen supply unit comprises an air inlet pipe array and an exhaust pipe array; the rainwater recycling unit is arranged at the lowest part of the park and is communicated with the pipeline at the lowest layer; the ground mechanical passing unit comprises a garden surrounding path surrounding the periphery of the garden and a high-clearance shed frame, and the inner side of the garden surrounding path is connected with the end of each planting row. By the adoption of the structure, the four functions of moisture removal, oxygen supply, rainwater recycling and mechanical passing are integrated and coordinated, and the problems of waterlogging, oxygen deficit, water resource waste and low mechanization level of southern hilly orchards are effectively solved.

The application discloses a kind of urban rail transit system vehicle configuration digital modeling system and method, it is related to rail transit engineering technical field, including the following steps: S100, establish the global level baseline of vehicle configuration, generate unique topological fingerprint to each node in configuration level, and build the corresponding relationship of topological fingerprint and time anchor point in combination with node creation time, form the level signature library for abnormal structure comparison.The application realizes accurate identification and isolation to configuration loop by topological fingerprint identification, level signature verification, differential comparison and sandbox verification, and dynamically optimizes structure import order in combination with risk score and self-healing control, significantly improves the accuracy, controllability and system robustness of rail transit vehicle configuration data, and provides reliable support for cross-car type operation and maintenance.

The invention discloses a vector algebraic operation-based segmented bus voltage phase difference rapid measurement method and device. The method comprises the following steps of: synchronously acquiring three-phase voltage data on two sides of a grid-connected point; converting the voltage data under the three-phase static coordinate system into voltage data under a two-phase static coordinate system; judging a phase difference range through a trigonometric function value, implementing specific rotation transformation on a voltage vector on one side according to the phase difference range, and equivalently mapping the phase difference to an acute angle range of 0-45 degrees; and finally, calculating the phase difference after rotation and compensating the rotation transformation angle, and obtaining the phase difference of the voltages on the two sides of the grid-connected point after reduction. The phase difference is calculated by adopting a pure algebraic method, tracking delay, loop filtering influence and potential lock losing risk introduced by a traditional phase-locked loop are thoroughly avoided, the phase difference calculation speed and precision are effectively improved, the method can be integrated to a new energy power generation equipment grid-connected control system, and the synchronous grid-connected speed, reliability and adaptability are greatly improved.

The application discloses a sunken pavement snow-melting and ice-melting loop heat pipe installation structure and belongs to the technical field of pavement ice-melting, and solves the problems of large working medium resistance, short effective snow-melting, high cost and low reliability caused by the need of adding a heat source due to long-distance laying of the existing heat pipe. The sunken pavement snow-melting and ice-melting loop heat pipe installation structure comprises a road snow-melting unit, a heat supply unit and a heat exchanger. The loop heat pipe of the road snow-melting unit comprises a heating loop and an evaporator. The heating loop comprises an evaporation pipe, a heating pipe and a liquid return pipe. The heating pipe is buried in a pavement or a bridge deck. The evaporation pipe and the liquid return pipe are respectively arranged at the top and the bottom of the evaporator to form a closed loop. The heat supply station is arranged at the side of the road and is communicated with the heat exchanger through a pipeline. The heat exchanger is lower than the heating loop. The height difference between the liquid return pipe and the evaporation pipe in the evaporator is 0.8-1.5 m. The effective snow-melting length is proportional to the height difference. The application utilizes the height difference to form a gravity driving force, and can prolong the effective snow-melting length and reduce the cost without an additional heat source. The application is suitable for different installation scenes of long-distance bridge decks and pavements.

1. The name of the design product: sculpture (intersection of Jiangnan Road and East Ring Road sign). 2. The use of the design product: the design product is used for the sculpture placed in public area for viewing and decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention provides a multi-purpose protection channel suitable for a water pumping and storage reservoir and an operation method of the multi-purpose protection channel. The multi-purpose protection channel is arranged on the outer side of a reservoir surrounding road of an upper reservoir or a lower reservoir of a water pumping and storage power station with one or more gullies. The multi-purpose protection channel comprises a water conveying channel section arranged in the direction of the reservoir surrounding road, the outer side of the water conveying channel section is connected with one or more gully bodies, and water outlets are formed in the two ends of the water conveying channel section. A water replenishing port gate is arranged at the first end water outlet, and the other side of the water replenishing port gate is communicated with a reservoir bank retaining wall of an upper reservoir or a lower reservoir of the pumped storage power station; an overflow weir is arranged at the second end water outlet, the downstream of the overflow weir is used for being connected with a spillway, and the spillway is located beside the upper or lower reservoir dam and is directly communicated with a downstream river channel; and the weir crest elevation of the water replenishing port gate is lower than that of the overflow weir and is higher than the normal water storage level of the reservoir. On the basis of effectively intercepting mountain torrent silt and defending geological disasters, clean incoming water can be introduced into the reservoir to increase power generation benefits.

Control unit for a fire protection system in a rail vehicle for monitoring and controlling fire detection and / or fire suppression in technical areas and passenger compartments of a rail vehicle, comprising: - a housing (4); - a processing unit arranged in the housing (4); - at least two Ethernet interfaces (20, 22) configured for dual-homing; - at least one interface for a bus for connecting fire protection system components in a loop architecture; wherein the housing (4) enables spatial and functional separation between safety-related (SIL) and non-safety-related (Non-SIL) areas, allowing safety-related and non-safety-related areas to be galvanically isolated by relays.

The application discloses a kind of test background car human-computer interaction behavior lightweight generation method under unprotected left turn scene, steps are as follows: step 1, set two closed loops as route 1 and route 2, route 1 and route 2 have intersection section;Step 2, set test background car on route 1, set automatic driving main car on route 2;Step 3, simulation is carried out, test background car, automatic driving main car is stationary before simulation starts;After simulation starts, each test background car is not driven to intersection area, and IDM follow-up mode control is used, and it is switched to human-computer interaction mode when driving to intersection area, to verify the reliability of automatic driving main car algorithm performance;Step 4, after crossing intersection area, test background car is switched to initial IDM follow-up mode again;Step 5, repeat step 3, 4, and the reliability of automatic driving main car algorithm performance is monitored cyclically.The application can verify the safety and reliability of automatic driving algorithm.

This application discloses a multi-agent path planning method and related equipment, relating to the field of artificial intelligence technology. The method includes: responding to a multi-agent path planning instruction, determining multiple agents for a path to be planned, determining the priority of each agent at the current planning node, determining a first grid map corresponding to the current planning node based on the priority, and planning the grid where each multi-agent will be located at the next planning node based on the one-way traffic constraint state of each loop in the first grid map and the priority. This application determines the one-way traffic constraint state of each loop at the current planning node based on priority, ensuring that the movement direction of each agent in each loop corresponding to the current planning node is unified, thereby avoiding narrow-channel conflicts and improving the efficiency of multi-agent task completion.

An adapter for an automation field device comprises a first communications interface designed for linking to a HART or 4-20 mA communications loop; a second communications interface designed for linking to a Foundation Fieldbus or Profibus PA Fieldbus based on Manchester Bus Powered transmission technology; an electronics unit with operating software that instructs the electronics unit to convert HART or 4-20 mA telegrams sent by the field device and incoming at the first communications interface into Foundation Fieldbus- or Profibus PA-compatible telegrams and to output same via the second communications interface, and / or to convert Foundation Fieldbus or Profibus PA telegrams incoming at the second communications interface into HART- or 4-20 mA-compatible telegrams and to output same via the first communications interface; and a power supply unit designed to tap electrical energy from the Foundation Fieldbus or Profibus Fieldbus via the second communications interface.