13 results about "Pedestrian road crossing" patented technology

The application discloses a kind of no signal pedestrian crossing human-vehicle game behavior perception utility function quantitative evaluation method, belong to traffic safety and management field;Including analysis and determination of the game subject at no signal pedestrian crossing and setting the perception utility of game subject;Adopt Monte Carlo simulation and human ear perception similarity respectively quantify the perception utility of each game subject;Determine the acceptable perception level of each game subject;The perception utility function of each game subject is established using logistic regression model;The application can quantitatively analyze the problem that pedestrian crossing and motor vehicle yielding behavior at no signal pedestrian crossing mutually confront, mutually game each other, establish the basis for constructing Jacobian matrix and replicator dynamic equation in human-vehicle game model.

The present disclosure provides a trajectory determination method, device, equipment, storage medium, program product and an autonomous vehicle, relates to the technical field of computers, and particularly relates to the technical field of autonomous driving and intelligent traffic. The specific implementation scheme is as follows: according to perception data of a target vehicle, a target obstacle satisfying a target interaction condition with the target vehicle is determined. The target interaction condition includes at least one of a first interaction condition and a second interaction condition, the first interaction condition represents an obstacle crossing a pedestrian crossing scene, and the second interaction condition represents an obstacle turning towards an exit lane scene. According to obstacle state data of the target obstacle and vehicle state data of the target vehicle, a motion trajectory of the obstacle in a future target time period is determined. According to the trajectory determination method of the present disclosure, the motion trajectory of the obstacle affecting the driving safety of the target vehicle can be determined in advance and in a timely manner.

This application provides a vehicle collision avoidance method, device, electronic device, and storage medium. The method includes: analyzing the acquired environmental information around the target vehicle to obtain pedestrian dynamic information including pedestrian posture sequences and pedestrian position sequences; predicting pedestrian dangerous actions based on the pedestrian dynamic information to determine a pedestrian crossing risk prediction result including the probability of crossing intention and crossing speed; determining collision risk information based on the pedestrian crossing risk prediction result, the target vehicle's driving information, and the relative positional relationship between the target vehicle and the pedestrian; determining a corresponding avoidance strategy based on the determined collision risk information, and controlling the target vehicle according to the determined avoidance strategy. Thus, by introducing pedestrian dangerous action prediction based on posture and position sequences, this application can obtain crossing intentions and crossing speeds in advance, thereby optimizing the avoidance strategy from sudden braking at the end to gradual deceleration in advance, ensuring safety and improving driving comfort.

1. Name of the product in this design: Integrated pedestrian crossing light. 2. Purpose of this design: To indicate when pedestrians should cross the road. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention discloses a multimodal pedestrian crossing intention prediction method and system based on frame pair coupling. The method includes: acquiring a temporal image containing the target pedestrian and synchronous vehicle motion information; extracting multimodal features including pedestrian trajectory, posture, appearance, and scene semantics; encoding each frame's features into a unified-dimensional embedded representation to form a frame-level feature sequence; inputting the sequence into a feature interaction network based on an attention mechanism, where the network achieves early interaction fusion of intra-frame multimodal features through a self-attention layer; and adaptively fusing information from the previous frame to the current frame through frame pair fusion units embedded between layers to obtain an updated feature sequence; and predicting the pedestrian crossing probability and determining the intention based on the task identifier features in the updated sequence. Through early fusion and explicit frame pair temporal coupling, the accuracy and timeliness of pedestrian crossing intention prediction in complex scenarios are effectively improved.

The present invention relates to a safety board system. The safety board system of the present invention can directly assist the movement of mobility disadvantaged persons crossing the pedestrian crossing, leading to rapid and safe crossing.

The application relates to the technical field of intelligent traffic control, and provides an intelligent traffic signal cooperative control system based on dynamic phase compression, which comprises a traffic signal lamp, a distributed sensing layer, an edge computing unit, a cooperative control layer, a dynamic phase adjustment module, a multi-stage cooperative module, an emergency response module, a blocking type ground warning structure and a deep learning optimization module. The distributed sensing layer collects vehicle queue length data, vehicle flow acceleration data, pedestrian crossing state data and special vehicle sound wave data, the edge computing unit calls a dynamic phase compression algorithm library, calculates a phase compression factor in combination with the vehicle queue length data, and outputs phase duration adjustment amplitude data to control the switching of the traffic signal lamp. When the edge computing unit identifies the pedestrian crossing demand, the micro electromagnetic push rod in the blocking type ground warning structure is controlled to be upwardly displaced and to flash, and the application improves the intersection passing efficiency, the pedestrian crossing safety and the passing speed of the special vehicle.

The utility model relates to the technical field of scene simulation model, especially traffic road scene simulation model, including model bottom plate, road edge, double yellow line, opposite lane partition fence, solid line, dotted line, car model, pedestrian crossing and human body model, be provided with three road edges on model bottom plate, be provided with three double yellow lines on model bottom plate, be provided with opposite lane partition fence on double yellow line, be provided with three groups of solid lines on model bottom plate, be provided with three groups of dotted lines on model bottom plate, place car model on model bottom plate, place human body model on the road edge similar to car, be provided with pedestrian crossing on model bottom plate. Through model is roundabout structure, roundabout involves multiple direction selection and priority judgment, can help child practice logical thinking and make correct decision quickly, and roundabout structure model can fill the vacancy of child to this knowledge.

This invention discloses a method for constructing the boundary of a 15-minute urban living circle based on multi-constraint paths, specifically relating to the fields of urban spatial analysis and edge computing. The method includes inputting community units, road segments, pedestrian crossings, passageway segments, open segments, entry edges, and blocking segments into edge nodes. An edge graph is generated within the edge nodes according to their connectivity relationships, and corresponding connections are severed using blocking segments. The edge graph and access points are then output. Using the access points and edge graph as input, walking time is accumulated segment by segment along the edge graph within the edge nodes. Road segments, pedestrian crossings, passageway segments, and open segments with a cumulative walking time not exceeding 15 minutes and directly connected to the preceding segment are sequentially written into the receiving layer. By constructing the edge graph within the edge nodes, generating the receiving layer, and using the search results of the area to be inspected to reverse-filter out variant outer edge chains that include unsearched objects, the method can relatively suppress the inclusion of non-continuously accessible internal spaces into the living circle boundary, making the obtained outer edge more consistent with the actual walking receiving relationship.

The present invention relates to a method (1) of illuminating a pedestrian crossing (3) that crosses a road (2), wherein an autonomously controllable and / or manually controllable vehicle (4) traveling on the road (2) moves toward the pedestrian crossing (3). Essentially, as the vehicle (4) approaches the pedestrian crossing (3), a road user (5) attempting to cross the road (2) is detected by a sensor, and in response to the detection of the road user (5) by the vehicle (4), as soon as the vehicle (4) stops before the pedestrian crossing (3), a light image (6) is projected onto the road (2) so that the pedestrian crossing (3) is at least partially illuminated by the vehicle (4) for the road user (5). Furthermore, the present invention relates to an illumination device (14) configured to carry out the proposed method (1), and an autonomously controllable and / or manually controllable vehicle (4) equipped with such an illumination device (14) or configured to carry out the proposed method (1).

This utility model discloses a pedestrian crossing assistance system, comprising two opposing housings. Each housing houses an electric push rod and a control assembly. The electric push rod drives the barrier to extend outside or retract inside the housing. The control assembly includes a red light control relay and a green light control relay, with their power terminals connected to the red and green lights respectively. The normally open terminal of the green light control relay is reverse-connected to the electric push rod. The normally open terminal of the red light control relay is connected to two common terminals of an obstacle avoidance control relay, and the corresponding normally closed terminals of these two terminals are connected to the electric push rod. The normally open terminals of the other two terminals of the obstacle avoidance control relay are reverse-connected to the power terminals of the electric push rod. This utility model can automatically track traffic light changes, closing the pedestrian crossing when the light is red to effectively discourage pedestrians from crossing against the red light; when the light is green, the barrier retracts, opening the pedestrian crossing and achieving orderly pedestrian traffic management.

Systems and methods for detecting a crosswalk location are disclosed. A crosswalk location can be detected by determining at least two colored lines on a road surface and then combining the at least two colored lines on the road surface into a grouping of related elements. The grouping of related elements can be classified as a crosswalk (or in some embodiments, a type of crosswalk) based on attributes of the grouping of related elements, where the attributes of the grouping of elements include a distance between the at least two colored lines and an orientation of the grouping of related elements on the road surface.

This invention provides a device for evaluating the continued existence of traffic signals for pedestrian crossings, which evaluates whether existing pedestrian signal lights remain in place. [Solution] The pedestrian crossing traffic signal retention evaluation device 1 is installed near an existing pedestrian crossing traffic signal on a road and consists of a lighting color detection unit that detects the lighting color of the pedestrian signal light, a pedestrian detection unit that detects pedestrians crossing the pedestrian crossing H, and a processing unit connected to the lighting color detection unit and the pedestrian detection unit that performs a retention evaluation of the pedestrian crossing traffic signal. The processing unit counts the number of pedestrians crossing the pedestrian crossing who comply with the lighting color (first number A) and the number of pedestrians who ignore the lighting color (second number B), and calculates the ratio P of the second number B to the total number of the first and second numbers A and B. Whether or not the pedestrian crossing traffic signal will remain in operation is evaluated based on whether or not this ratio P is above a threshold.