159 results about "Street crossing" patented technology

The invention discloses a road section pedestrian street-crossing sensing control method based on the number of pedestrians to cross a street. The method comprises the following steps of: (1) acquiring control threshold information; (2) acquiring a video image in real time and extracting the information about the number of the pedestrians to cross the street; and (3) judging, and controlling switching of signal lights. By adoption of the road section pedestrian street-crossing sensing control method, the actual traffic condition in urban and rural road environments is fully considered, the pedestrians to cross the street serve as top-priority objects, the information about the number of the pedestrians to cross a sidewalk is acquired by computer vision detection, and the signal lights areswitched according to the information, so that the pedestrians can safely cross the street, time and space resources of road traffic are reasonably excavated, and the traffic operating efficiency in the urban and rural road environments is effectively improved. Compared with the prior art for vehicle identification and pedestrian identification, the method has the advantages of high detection identification accuracy rate and high control reliability.

The invention provides an induction type pedestrian street-crossing signal control method. According to the induction type pedestrian street-crossing signal control method, green light illumination prolonging time is obtained according the speed of pedestrians; current green light illumination remaining time is calculated according to the entering time of current pedestrians; green light illumination prolonging time and current green light illumination remaining time are calculated when pedestrians enter a street-crossing channel; and if the green light illumination prolonging time is larger than the current green light illumination remaining time, the green light illumination remaining time of a green light at an safety island corresponding to the channel which the pedestrians enter is set as the green light illumination prolonging time. With the induction type pedestrian street-crossing signal control method adopted, the problem that the pedestrians cannot normally pass through an intersection can be solved. The prolonging time is calculated according to the time when the pedestrians enter the channel, and the remaining time of the green light is prolonged according to the prolonging time, and therefore, the pedestrian who enter the intersection can normally pass through the intersection, and the safety of the pedestrians in street-crossing can be improved.

The invention discloses a system and a method for controlling a ground-guidance type pedestrian street-crossing auxiliary signal in the field of traffic signals. A ground-guidance signal lamp group consists of two groups of side-group signal lamps, two groups of middle-group signal lamps and a group of center-group signal lamps, wherein the group of center-group signal lamps is arranged in the center of a pedestrian crosswalk; the two groups of side-group signal lamps are respectively arranged on the pedestrian crosswalk which corresponds to the center of an outer motorway; the two groups of middle-group signal lamps are respectively arranged on the pedestrian crosswalk which corresponds to the center of an inner motorway; each group of ground-guidance signal lamps is formed by connectinga row of small signal lamps in series; side faces A, B and C of each small signal lamp are luminous surfaces; the side faces A and B respectively face two ends of the pedestrian crosswalk; the side face C faces the entering direction of motor vehicles; and when pedestrians are endowed with a right of way and when the time of the right of way of the pedestrians is reduced, an intuitive passing signal prompt is provided for the pedestrians by controlling traffic lights on the side faces A, B and C, and the pedestrians can choose appropriate time and adopt a safe and effective behavior to cross the street.

The invention discloses an intersection-based V2P collision avoidance method comprising the steps that firstly, the participants of the game are ensured to be vehicles and pedestrians, and the participants are classified to define their passing strategy sets; secondly, street crossing delay and risk payment of the vehicles and the pedestrians of the intersection are solved and a V2P game model is established; thirdly, traffic reward and punishment payment is added on the basis of delay and risk payment so as to enhance the priority rate of the vehicles; and fourthly, an SEIR virus propagation model is improved, and an IEVRI model is established to analyze the psychology of the traffic participants so as to prove the necessity of introducing traffic rewards and punishments. The pedestrian flow and the vehicle flow in the traffic flow, the distance and the speed of the pedestrians and the vehicles from a decision area to a conflict area and the relative potential of the number of the unit batch of street crossing pedestrians are integrally considered, and the traffic reward and punishment factors are added and the V2P game model is established so that the road traffic safety can be enhanced and the passing efficiency can also be guaranteed.

The invention provides a street-crossing pedestrian trajectory prediction method and system based on a social force model, and a medium. The method comprises the following steps: a basic data acquisition step: selecting a pedestrian-vehicle mixed zebra crossing area for early investigation, shooting a pedestrian walking video of the area, and performing video processing and image processing on thepedestrian walking video to obtain pedestrian walking feature data and pedestrian-vehicle interaction scene data; and a model parameter calibration step: preprocessing the obtained pedestrian walkingcharacteristic data and the obtained pedestrian-vehicle interaction scene data, and calibrating parameters of a logistic regression model and a social force model. According to the method, the improved social force model is utilized, the individual difference of pedestrians is fully considered, the pedestrian track prediction of the crossing street is applied to the field of automatic driving vehicle decision making, the driving safety of the automatic driving vehicle in the pedestrian-vehicle mixed zebra crossing area can be improved, the delay rate of the vehicle is reduced, and the road traffic capacity is improved.

The invention discloses a signalized intersection non-motor vehicle lane channelizing control method under expansion effect. The method includes the following steps: step 10), utilizing a video detector for data collection; step 20), extracting data; step 30), building a vehicle traveling simulation module; step 40), simulating expansion effect; step 50), performing non-motor vehicle lane channelizing control. By the method, interference caused to street crossing of motor vehicles by non-motor vehicles can be lowered, street crossing delay of the motor vehicles can be reduced, and running efficiency of a signalized intersection can be improved.

The invention discloses a setting system and method for same-phase turn-right and pedestrian signals of an independent intersection. The system comprises an image collection module used for collecting image signals of street-crossing pedestrians in pedestrian standing areas on two sides of a pedestrian crossing and transmitting the signals to an image processing module; the image processing module used for transmitting a maximum value of the number of pedestrians waiting to cross the street to a traffic signal controller; a vehicle detector used for transmitting the number of vehicles waiting to turn right to the traffic signal controller and simultaneously collecting a newly-added number of the vehicles turning right in real time when a turn-right signal lamp is green; the traffic signal controller used for calculating a pedestrian street-crossing signal lamp green time Gp and a turn-right vehicle signal lamp green time TR and then transmitting signal control instructions to the traffic signal controller; and a signal controller used for controlling the time of the signal lamps for street-crossing pedestrians and turn-right vehicles. By adopting the setting system and method, the high-speed passing of vehicles and pedestrians at the independent intersection is realized.

The invention discloses an automatic caution system for pedestrians crossing street. The system comprises a detecting and triggering unit, a vehicle pre-caution alarming unit and a street crossing trajectory alarming unit wherein the detecting and triggering unit is arranged at a crossroad to detect whether there are people are about to cross the crossroad or not. The vehicle pre-caution alarming unit is arranged ahead of the crossroad to draw coming vehicles' attention to the pedestrians. The street crossing trajectory alarming unit consists of a plurality of ground lights which are fixedly arranged at intervals on the two sides of the zebra crossing of a road to draw the attention of vehicles. The automatic caution system for pedestrians crossing street has a simple and reasonable structure. Conveniently laid out, the system can make pre-cautions to prevent the knock down of pedestrians. The system can be mounted on national roads, provincial roads, and town roads for use to effectively reduce the traffic accidents. For these advantages, the system can be widely promoted.

The invention discloses a city safety island based on pedestrian and non-motor vehicle separation, which comprises an island body, wherein the island body is in a triangular shape, the middle part of the island body is provided with a pedestrian waiting area in the island, both sides of the pedestrian waiting area in the island are provided with non-motor vehicle waiting areas in the island, the pedestrian waiting area is connected with a pedestrian street through a street and island crosswalk, the pedestrian waiting area is connected with the adjacent island body through a crosswalk between islands, the non-motor vehicle waiting area in the island is connected with the pedestrian street through a street and island non-motor vehicle crossing, and the non-motor vehicle waiting area in the island is connected with the adjacent island body through a non-motor vehicle crossing between the islands. The city safety island disclosed by the invention can effectively improve the safety and the comfort of pedestrians crossing the street, improve the crossing efficiency of pedestrians and non-motor vehicles and reduce the incidence of traffic accidents in street crossing, and road environment and city appearance are beautified.

The invention discloses a self-adaptive pedestrian street-crossing signal calculating method based on a video, and overcomes the problems that constant green light time, in which pedestrians cross the street, at present increases delay of motor vehicles and causes hidden troubles in pedestrian safety. The method comprises the steps that 1) hardware equipment is installed; 2) the background is initialized; 3) the background is updated by background difference, threshold calculation and background image update; 4) shadows are rejected by estimating the luminance difference, estimating the chroma difference and estimating a local position; 5) features are selected and extracted by counting the amount of foreground pixel points, determining a feature selecting threshold, selecting features and extracting features; 6) the amount of pedestrians in a pedestrian waiting area is detected by constructing a feature sample library, self-crossing verification of the sample library, establishing a pedestrian quantity detection model, and detecting the pedestrian amount via a video sequence; 7) street-crossing time of the pedestrians is detected; and 8) the street-crossing time of the pedestrians is calculated by constructing a self-learning sample library, establishing a street-crossing time model and calculating the street-crossing time.

The invention relates to a design method for cooperating the street crossing of opposite-angle pedestrians and the left turning of a motor vehicle at an intersection. According to the method, firstly, traffic island chamfer parts (2) of angle-turning traffic islands (1) in the opposite-angle direction of the intersection are connected with each other, and two zebra crossings (5) with the opposite angles being crossed are arranged so that the opposite-angle pedestrians can pass through; a central pedestrian safety island (7) is arranged in the center of the intersection, and a left turning guide line (6) of the motor vehicle is arranged in the intersection, so as to ensure the separation of motor vehicles and non-motor vehicles at the intersection and guarantee the secondary opposite-angle street crossing safety of the pedestrians; meanwhile, pedestrian street-crossing traffic lights (4) in the opposite-angle direction are arranged on the angle-turning traffic islands (1) at the intersection, so that the street crossing of the opposite-angle pedestrians and the left-turning street crossing of the motor vehicles are controlled together with signal phases cooperatively. According to the design method, the effective road passing-through area of the intersection at a left-turning phase can be effectively enlarged, the delay of the street crossing of the opposite-angle pedestrians can be reduced, and the traffic conflict can be decreased. The design method is suitable for the intersection of an urban road which is large in the flow of the left-turning motor vehicles, large in the demand of opposite-angle street crossing and lower in the speed of the vehicles.

The invention provides an optimal configuration method for a signal control intersection phase green light time induction interval. According to a traffic flow, a signal scheme time period is divided,and the green time induction interval of each phase stage in each time period is subjected to distribution calculation on the basis of non-motor vehicle and pedestrian street crossing requirements, intersection vehicle passage requirements and traffic management requirements. By use of the method, minimum green light time requirements and maximum green light time requirements in the signal phasetime period are summarized, the street-crossing green light time requirements of non-motor vehicles and pedestrians in periodic time and a locking situation of a traffic control signal phase stage areconsidered, the green light time induction interval of each phase stage in the time period is subjected to optimal configuration, so that a green light time use ratio of the interaction traffic signal is effectively improved, intersection passage efficiency is improved, and a traffic user problem is alleviated.

The invention relates to traffic facilities and method gathered walker cross quick speed transit and parking function. Ground floor is formed traffic storey with frame type structure above ground road axle wire. The traffic storey is set walker cross layer, elevated road passageway layer, and many parking layer. The walker cross layer is connected to foot-walk; the elevated road passageway layer is connected to elevated road; the parking layer is connected to the elevated road passageway layer by auto walk lane or vehicle using elevator. The traffic facilities and method can effectively solve the problems of difficult parking, walker cross, and quick speed transit, and abate traffic jam.

The invention relates to a video pedestrian detection-based road section pedestrian street crossing signal system and method. The road section pedestrian street crossing signal system comprises pedestrian crossing signal lamps and a traffic signal control machine; a video pedestrian detector and a pedestrian waiting area traffic sign are arranged on the outer side of each end portion of zebra crossings, wherein the pedestrian waiting area traffic sign comprises a pedestrian waiting area located on the ground outside the corresponding end portion of the zebra crossings; and when the collected and identified state information of pedestrians crossing streets in the pedestrian waiting area is matched with a preset street crossing request threshold value in the corresponding video pedestrian detector, the corresponding video pedestrian detector can send a pedestrian crossing request signal to the traffic signal controller, and the traffic signal controller can control the working state of the corresponding pedestrian crossing signal lamp according to the pedestrian crossing request signal. According to the system and method of the invention, street crossing requirements of different pedestrians can be satisfied to the greatest extent, interference of pedestrians waiting for crossing streets on non-motor vehicles and the passing of pedestrians in the same direction is avoided, and the efficiency and reliability of the street crossing of the pedestrians are improved.

The invention relates to an intelligent guiding system, with a movable laser wall, for street crossing of pedestrians. The system comprises video collectors arranged at the two ends of a pedestrian zebra crossing respectively, video analyzers connected to the video collectors respectively, signal lamp controllers and a laser lamp controller connected to the video analyzers, laser lamps connected to the laser lamp controller, a V2I information emitter connected to the signal lamp controller, and vehicle-mounted information receivers arranged on motor vehicles respectively. The system satisfies the street crossing requirement of pedestrians to the largest degree, accords with street-crossing features of different types of pedestrians, can limit violated street crossing behaviors of the pedestrians effectively, and avoids disorder of street crossing in a crossing.

The invention discloses a glass guardrail double-layer inhaul cable supporting system pedestrian bridge structure. According to the structure, upper prestress inhaul cables (1), lower prestress inhaul cables (2), guardrail glass panels (3) and bridge floor glass boards (4) are combined, shearing force is transmitted through the guardrail glass panels (3), and a new pedestrian bridge supporting system is composed of the guardrail glass panels (3) and the prestress inhaul cables and is reasonable in stress, light and attractive. The guardrail glass panels (3) are fixed between the upper prestress inhaul cables (1) and the lower prestress inhaul cables (2) through prefabricated joint fasteners (5), and the guardrail glass panels (3) can serve as pedestrian bridge guardrails and meanwhile serve as structural stressed components to transmit the shearing force. The bridge floor glass boards (4) are connected with the lower portions (3) of the guardrail glass panels (3) on the two sides through L-shaped connecting pieces (6). The novel structure integrates permeability, ornamental value and a stress function and has wide application prospects in construction of an urban street-crossing pedestrian bridge.

The invention discloses a method for setting the pedestrian green time of a pedestrian crosswalk under signal control, and aims at solving the problem that the influence of the pedestrian number on the pedestrian speed and the practical passing capability of the pedestrian crosswalk is not considered in the existing pedestrian street crossing time determining method. According to the method for setting the pedestrian green time of the pedestrian crosswalk under signal control, the crowd street crossing time consists of the crowd dispersing time t<s>, the identical-direction crowd basic crossing time t<0> and the opposite-direction pedestrian retardation delay time t<d>. The method comprises the following steps of 1, calculation of the crowd dispersing time t<s> in the crowd street crossing time: the transverse distance delta of pedestrians in the crowd is determined, and the accumulated pedestrian number in the crowd and the pedestrian number in the whole crowd in one period are obtained; 2, calculation of the crowd basic crossing time t<0> in the crowd street crossing time; 3, calculation of the opposite-direction pedestrian retardation delay time t<d> in the crowd street crossing time; and 4, obtaining of the crowd street crossing time T (T= t<s>+ t<0>+ t<d>) through optimization by comprehensively considering the crowd dispersing time t<s>, the crowd basic crossing time t<0> and the opposite-direction pedestrian retardation delay time t<d>.

The invention provides a multistage traffic responsive type signal control method for road section pedestrian crossing, comprising steps of installed a set of automobile signal lamps on automobiles in each passing direction, installing four sets of pedestrian signal lamps on two ends of the sidewalk and on a pedestrian street crossing safety island, wherein the automobile signal lamps belong to the same one automobile phase, and the pedestrian signal lamps belong to the same one pedestrian phase, presetting two working states which are for the automobiles to pass for a long time and for the automobiles and the pedestrians to pass alternatively , installing an annular coil detector at the position which is 40 meters up from a stop line of each automobile road, installing a pedestrian requiring button on each pedestrian signal lamp rod, and utilizing signal time distribution data and traffic detection data to constitute various traffic incidents. In the controlling process, time frame division is not needed, and the dynamic adjustment of the signal lamp colors of the automobiles and the pedestrians is realized, continuous time of any working state is automatically extended and the various working states can be automatically switched by using the traffic accidents happen in real time as driving mechanism.

The invention discloses a pedestrian street-crossing early-warning system with pedestrian early-warning stand columns, and a control method thereof. The pedestrian street-crossing early-warning systemcomprises the pedestrian early-warning stand columns (1), wherein each pedestrian early-warning stand column (1) is arranged at a junction of pedestrian-crossing lines and a sidewalk, and comprises avehicle passing lamp light band module (5), a dynamic projection lamp module (2), a directional loudspeaker module, a pedestrian signal lamp module (3), a pedestrian passing prompt screen module (4),an anti-collision module and a main controller module. When in actual use, the control method of the pedestrian street-crossing early-warning system comprises a signal control intersection hierarchical control method and a non-signal control intersection vehicle and road collaborative control method for each set of pedestrian-crossing lines, and comprises the steps of acquiring a state of a signal lamp in real time by means of a main controller, and issuing corresponding warning information according to the states of pedestrians and the signal lamp of the corresponding crossing lines. The pedestrian street-crossing early-warning system automatically sends out Chinese and English images and voice prompts according to presetting, performs face recognition on street-crossing pedestrians whoviolate the rules, and automatically transmits the information of the violators to the police by means of the system.

The invention provides a guardrail setup matched with street traffic lights for use, which can be used as a guardrail for street pavement street-crossing management and is installed at grooves for lifting at both sides of a zebra crossing. The invention is mainly used for being matched with the traffic lights of a crossing street for use and can be directly connected and communicated with a traffic light power supply to form a lifting guardrail device matched for use; when a red light lights, the guardrail is simultaneously lifted from the grooves; and when a green light lights, the guardrail descends into the grooves to carry out traffic management on crossing pedestrians, and the guardrail setup can perform the action of completely avoiding the occurrence of traffic accidents and has the effects of being beneficial to the traffic management and ensuring pedestrian safety.

The invention discloses an automatic induction control method of crossing signals for pedestrians and non-motor vehicles at intersection. The method is based on signal group optimization control logic, breaks through the way that pedestrians and non-motor vehicles follow the signal phase of motor vehicles to pass, takes the pedestrian or non-motor vehicle signal group as an independent control unit, adopts automatic induction detection of pedestrians and non-motor vehicles, a secondary street crossing mode and the optimized control logic algorithm based on a signal group, and provides for pedestrians or non-motor vehicles the green light passing right for many times by adopting a 'crack pin' mode on the premise of not generating green light conflict with the motor vehicle signal group. Theautomatic induction control method of crossing signals for pedestrians and non-motor vehicles at intersection has the advantages that the waiting time for red light is reduced, the traditional fixedphase control limit of following the motor vehicle signal group to pass is broken through, and the method is more suitable for the ubiquitous application scene with large pedestrian and non-motor vehicle street crossing requirements and strong randomness, wherein pedestrians and non-motor vehicles can be ensured to cross the street safely while the traffic efficiency of the motor vehicles can be effectively considered, and the overall traffic control efficiency of the intersection is effectively improved.

An auxiliary lamp control method of a traffic main and auxiliary lamp signal system includes the following steps of: (1) judging whether a pedestrian street crossing request signal Q exists, if exists, entering (2), and if not, entering (3); (2) executing a first mode: if a red light of a pedestrian street crossing auxiliary signal lamp is turned on, accepting the pedestrian street crossing request Q that is executed after delay time T, and then judging the pedestrian street crossing auxiliary signal lamp, if the green light is turned on, rejecting the pedestrian street crossing request Q, if the red light is truned on, then setting the yellow light of an auxiliary signal lamp of motor vehicles to be turned on, and setting the turn-on time of the yellow light as Tyel; after counting down the turn-on time Tyel of the yellow light, setting the red light of the auxiliary signal lamp of motor vehicles to be truned on, the green light of the pedestrian street crossing auxiliary signal lamp to be truned on and the turn-on time of the green light as Tpass; after counting down the turn-on time Tpass of the green light, entering step (1); and (3) executing a second mode: setting the green light of the auxiliary signal lamp of motor vehicles to be turned on always. The control method can keep a balance between the pedestrian street crossing request and vehicle passing efficiency.

The invention relates to the field of traffic control, in particular to a pedestrian and non-motor vehicle street-crossing intelligent management control system. The pedestrian and non-motor vehicle street-crossing intelligent management control system is characterized by comprising the following modules: a camera shooting and snapshot unit, an acousto-optic warning unit and an illegal event management unit, records and exposes a single actor for the situation that a single pedestrian runs a red light illegally, records all transgressors for the situation that a plurality of pedestrians run the red light illegally, exposes a ''leader'' who firstly enters a pedestrian crosswalk and takes the lead in running the red light, and respectively records the pedestrian who runs the red light and the ''leader'' into an illegal behavior event library.