570 results about "Pedestrian crossing" patented technology

A traffic warning system which alerts approaching vehicle traffic to the presence of a pedestrian in a crosswalk. The system includes a plurality of surface mounted lights partially embedded in and placed across a roadway. The lights are activated by the pedestrian, either by manual switch or by a sensor, before he enters the crosswalk. Once activated, the flashing lights warn drivers of approaching vehicles that the pedestrian may have entered the crosswalk, and that caution should be exercised.

A driver assistance system for avoiding collisions of a vehicle with pedestrians, the system including a camera sensor and / or a beam sensor. When an object moving at a given speed on a pedestrian crossing is detected, the object is detected as being a pedestrian with a probability that is sufficiently high to output a warning to the driver, reducing the likelihood of a potential collision.

The invention discloses a vehicle speed control device and method. The vehicle speed control device comprises an environment sensing and integration module, a pedestrian jaywalking behavior cognition module and an automatic driving decision-making module, wherein the environment sensing and integration module is used for detecting the information of a jaywalking pedestrian in front of a running vehicle and outputting the information of the jaywalking pedestrian; the pedestrian jaywalking behavior cognition module is used for receiving the information of the jaywalking pedestrian and outputting the pedestrian's behavior cognition information according to the received information of the jaywalking pedestrian combined with the dynamic time series information and the interaction between the vehicle and the pedestrian; and the automatic driving decision-making module is used for receiving environment information and pedestrian's behavior cognition parameters, giving the current traffic speed of the vehicle, and outputting the current traffic speed of the vehicle. According to the vehicle speed control device and method disclosed by the invention, in the running process of the vehicle, the pedestrian target in front of the vehicle can be accurately recognized, the pedestrian's intention can be predicted, real-time judgment is performed, reasonable decision can be made, and autonomous recognition and decision-making of an autonomous vehicle can be realized when a pedestrian crosses the road, so that the vehicle can safely and smoothly give way to the pedestrian crossing the road.

The invention provides an intelligent traffic signal control system considering the safety of cross-street pedestrians; the intelligent traffic signal control system comprises inductance coil detectors, video detectors, a traffic signal controlling machine and signal lamps; a two-phase total-inductive control mode is adopted in a road crossing; the two inductance coil detectors are embedded in each inlet lane, wherein the main inductance coil detector is embedded at a stop line of the inlet lane and is used for detecting traffic flow of a road section; the auxiliary inductance coil detector is embedded at the possible maximum queuing part of an advanced position of the main inductance coil detector and is used for assisting the main inductance coil detector to detect motor vehicles; pedestrian cross-street waiting areas at two ends of each pedestrian crossing are respectively provided with the video detector for detecting flow of crossing pedestrians; the traffic signal controlling machine carries out data exchange with the main inductance coil detector, the auxiliary inductance coil detector and the video detectors by data lines and simultaneously controls the signal lamps positioned at the pedestrian crossing and the road crossing by the data lines. According to the intelligent traffic signal control system, the safety and the passing efficiency of the cross-street pedestrians can be realized, and the passing rate of the motor vehicles is ensured.

Disclosed herein are an apparatus and method for managing safety of a pedestrian at a crosswalk, which determine the location of a pedestrian in a crosswalk area, and then selectively provide a pedestrian signal extension service, an approaching vehicle notification service, and a pedestrian danger notification service. A presented apparatus includes a monitoring unit for monitoring a crosswalk area in which a pedestrian waits or crosses a street. A detection unit detects whether a pedestrian is present in the crosswalk area, based on information output from the monitoring unit. A location determination unit determines a location of the pedestrian detected by the detection unit. A safety determination unit determines whether the pedestrian is safe, based on the location of the pedestrian and a state of a pedestrian signal. An information provision unit outputs danger notification information based on a safety / danger determination signal output from the safety determination unit.

This presentation provides methods to track pedestrians heading angle using smart phone data. Tracking heading angle especially at or from stationary position is key for pedestrian safety, e.g., for smart cross system and pedestrian collision mitigation system. It provides pedestrian-to-vehicle (P2V) platform. It deploys smart phones or mobile devices, equipped with DSRC (Dedicated short range communication) support, to act as beacons for pedestrians: Phone can alert driver to pedestrian presence in path; Pedestrian Basic Safety Message (BSM) can aid awareness for vehicles; It can be used for bicycles, as well. It also provides pedestrian-to-infrastructure (P2I) platform. Smart phone, through DSRC / cellular, transmits pedestrian presence to crosswalks / signals: It enables advanced crosswalk lighting / warning scheme; It enables bundling of pedestrian presence to vehicles. In this presentation, we provide various examples and variations on these.

The invention relates to a method for assessing the crossing risk of pedestrians at an intersection on the basis of trajectory data. The method comprises the following steps of S1, extracting conflictindexes between motor vehicles and the pedestrians on the basis of the trajectory data; S2, identifying interactive modes of the pedestrians and motor vehicles on the basis of the extracted conflictindexes, and calculating potential collision probabilities between the pedestrians and motor vehicles according to different interaction modes; S3, calculating potential collision consequences of pedestrian-vehicle interaction events according to the vehicle types and vehicle speeds of the motor vehicles; S4, combining the collision probabilities with the potential collision consequences to createa risk assessment model; S5, according to a pedestrian crossing risk degree on each time and space calculation unit in the risk assessment model, obtaining a risk degree matrix and drawing a pedestrian crossing risk map according to the risk degree matrix; S6, combining an average pedestrian crossing risk degree in the risk assessment model with a subjective risk standard, dividing pedestrian crossing risk levels and conducting risk assessment. Compared with the prior art, the method has the advantages of comprehensive and accurate assessment and the like.

The invention relates to a pedestrian crosswalk intelligent traffic light monitoring system and method based on computer vision. The positioning of system cameras adopts a method for simultaneously collecting information of vehicles and pedestrians, so that the quantity of the cameras needed by the system is only two, a video on a pedestrian crosswalk acquired by a charge coupled device (CCD) camera is used as a to-be-processed target, the quantity of the pedestrians and the vehicles waiting for crossing the crosswalk can be automatically detected, a display time of a traffic light is automatically set and switched through a neural network algorithm according to the detected quantity of the pedestrians and vehicles waiting for crossing the crosswalk, so that the pedestrians and the vehicles can pass through a crossing of the crosswalk through an optimum way, and the intelligent management of a traffic system at the pedestrian crosswalk can be realized.

The invention provides a traffic safety pre-warning system for pedestrians using mobile phones. The system comprises mobile terminals arranged in the mobile phones of the pedestrians; on-board units arranged in vehicles; a pedestrian crossing warning light arranged on a pedestrian crossing and used for giving alarm light when receiving a pre-warning instruction sent by a road side unit; and the road side unit arranged at the roadside of a pedestrian crossing of an intersection or a road section and used for analyzing whether conflict occurs between vehicles and pedestrians according to pedestrian dynamic information and vehicle dynamic information in a radiation area, and sending the pre-warning instruction to the mobile terminals of the pedestrians and the on-board units of the vehicles, wherein the pedestrians and the vehicles may have conflict, as well as the pedestrian crossing warning light. The system is arranged on the pedestrian crossing of an unsignalized intersection or road section, so that information sharing between drivers and crossing pedestrians can be realized efficiently and safely; and a unified safety early warning judgment criteria is established, thereby making up for the dangers possibly brought about by sensory differences between the drivers and the pedestrians.

A solar-powered crosswalk warning system is disclosed. The crosswalk warning system comprises two or more crosswalk warning beacons, located on opposite sides of the road. Each beacon comprises a solar panel to recharge a battery, a battery back, a control unit to charge the battery pack during daylight hours, a communication unit to communicate to the second crosswalk beacon, a traffic signal lamp ton warn oncoming traffic, and a triggering means by which the pedestrian can activate the beacons.

Pedestrian detection and counting for traffic intersection control analyzes characteristics of a field of view of a traffic detection zone to determine a location and size of a pedestrian area, and applies protocols for evaluating pixel content in the field of view to identify individual pedestrians. The location and size of a pedestrian area is determined based either on locations of vehicle and bicycle detection areas or on movement of various objects within the field of view. Automatic pedestrian speed calibration with a region of interest for pedestrian detection is accomplished using lane and other intersection markings in the field of view. Detection and counting further includes identifying a presence, volume, velocity and trajectory of pedestrians in the pedestrian area of the traffic detection zone.

The invention relates to a pedestrian crossing traffic light control method and a traffic light control system for achieving the method. Pedestrian crossing signal lights are arranged at the two ends of a zebra crossing, and a motor vehicle traffic signal light is fixedly arranged above the zebra crossing. The method comprises the steps that according to the initial state, the pedestrian crossing signal lights are red, and the motor vehicle traffic signal light is green; the total weight of pedestrians in waiting areas at the two ends of the pedestrian crossing is detected; according to the detected weight of the pedestrians, the time for switching the red pedestrian crossing signal lights into the green pedestrian crossing signal lights and the time for switching the green motor vehicle traffic signal light into the red motor vehicle traffic signal light are controlled. According to the method and system, the weight of the pedestrians waiting for crossing the road in the waiting areas is detected, the time for switching the green motor vehicle traffic signal light into the red motor vehicle traffic signal light is controlled, it is detected that the larger the weight of the pedestrians is, the shorter the time for switching the green motor vehicle traffic signal light into the red motor vehicle traffic signal light is, and therefore the time of the pedestrians for waiting for passage is reasonably controlled, and the efficiency of communication and transportation is improved.

The invention discloses a method and a system of detecting a pedestrian running the red light based on Kinect, which are capable of capturing the action of the pedestrian crossing the road in real time so as to judge whether the pedestrian runs the red light when crossing the road. The system comprises a Kinect camera, a data input interface, a central processor, a wireless signal emitter, a voice alarm device, a portable alarm, wherein the Kinect camera is used for collecting human body images; the central processor is used for processing the colleted human body images to analyze the on-site operation; the portable alarm is carried by an auxiliary police; the Kinect camera is connected with the central processor through the data input interface; the central processor is connected with the wireless signal emitter and the voice alarm device; the portable alarm is connected with the wireless signal emitter. The method and the system have the beneficial effects that the action of the pedestrian crossing the road can be captured in real time, whether the pedestrian runs the red light when crossing the road can be judged by the action of the pedestrian, the action of the human body can be analyzed and monitored in real time, an alarming signal can be sent rapidly and timely, and the applicability to a working site is strong.

This invention relates to an automatic control method for green waves of roadway signal lamps automatically controlled by computers, which can increase the usage efficiency of motor roadways and crosswalk: 1, increasing safety for foot passengers and reducing conflict between motor cars and passengers, 2, reducing interference of foot passengers to cars to ensure stability of motor flows, 3, much more benefit to the region control to city road traffic to realize green wave control to motor cars among city road crossings.

The invention relates to a signal lamp for prompting right-turn vehicles to avoid pedestrians at a crossroad. The signal lamp comprises camera equipment, a signal lamp control unit and a right-turn prompting lamp, wherein the camera equipment is used for picking up real-time video images of a pedestrian crossing at the crossroad; the signal lamp control unit is used for analyzing the real-time video images by using a mode recognition algorithm, recognizing whether pedestrians walk in the area of the pedestrian crossing or not and transmitting control signals to the right-turn prompting lamp according to recognition results; and the right-turn prompting lamp is arranged at the front of a right-turn lane at the crossroad and is lighted up or extinguished according to the control signals. Therefore, the signal lamp for prompting right-turn vehicles to avoid pedestrians at the crossroad has the advantages that the drivers of the right-turn vehicles can be provided with visualized prompts aiming at the situation whether pedestrians walk on the pedestrian crossing at the front or not, the drivers can make a prejudgment of slowing down to give way or not, the situation of scrambling for passing between the right-turn vehicles and the pedestrians is improved and the maintenance of traffic safety is facilitated.

The invention relates to an assistant system of pedestrian safety of an intersection, which is characterized by comprising a laser barrier module, a pedestrian monitoring prewarning module and a vehicle and road communication control module; the laser barrier module comprises two light source emitting props arranged in one diagonal position of both ends of a pedestrian crossing and two light source receiving props arranged in the other diagonal position of both ends of the pedestrian crossing; more than one group of laser light sources are correspondingly arranged on the two light source emitting props at intervals; each group of laser light source comprises two laser light sources arranged on each light source emitting prop; the pedestrian monitoring prewarning module comprises two voice warning devices and a photosensitive detecting device which corresponds to each laser light source; the vehicle and road communication control module comprises a singlechip control system, a communication interface and a corresponding peripheral circuit; the singlechip control system is electrically connected with each module respectively; the singlechip control system is used for obtaining state signals of red, green and yellow lights and sending signals for controlling opening or closing of the laser light sources; and when a pedestrian runs the red light, the singlechip control system sends a signal to the pedestrian monitoring prewarning module for warning the pedestrian. The system provided by the invention is widely applied for city traffic.

The invention discloses a humanized efficient pedestrian crossing facility and a control method thereof. The pedestrian crossing facility is arranged at a crossing and comprises a pedestrian crossing, a central safety island, an isolation belt, lane traffic lights and pedestrian traffic lights; the isolation belt is arranged in the middle of a two-way driving lane; the pedestrian crossing is arranged at the intersection of the two-way driving lane; the central safety island is positioned in the middle of the pedestrian crossing and divides the pedestrian crossing into two sections; the lane traffic lights and the pedestrian traffic lights are unidirectionally controlled; a corner safety island is arranged at each of four corners of the crossing. The utilization rate of a road is increased by matching the pedestrian traffic lights and the lane traffic lights and respective control on pedestrian twice crossing and traffic flow in different directions, the pedestrian waiting time is also reduced, the pedestrian-vehicle conflict is solved due to the corner safety islands, the integral passing efficiency of pedestrians and vehicles is greatly improved, and the humanized efficient pedestrian crossing facility and the control method thereof have ecological benefits, social benefits and economic benefits.

The invention discloses a pedestrian crossing passage traffic light intelligent control system. The pedestrian crossing passage traffic light intelligent control system comprises a pedestrian crossing passage traffic light control module used for controlling the switching of a pedestrian crossing passage traffic light and an automobile traffic light control module used for controlling the switching of the pedestrian crossing passage traffic light, and is characterized by further comprising an image acquisition module used for acquiring pedestrian waiting area images, and a time-waiting equivalent calculation module used for calculating and obtaining a pedestrian time-waiting equivalent according to the acquired pedestrian waiting area images, wherein the pedestrian crossing passage traffic light control module controls the switching of the pedestrian crossing passage traffic light according to the pedestrian time-waiting equivalent calculated by the time-waiting equivalent calculation module, or the automobile traffic light control module controls the switching of the pedestrian crossing passage traffic light according to the pedestrian time-waiting equivalent calculated by the time-waiting equivalent calculation module. The pedestrian crossing passage traffic light intelligent control system is capable of guaranteeing traffic safety, comforting the mood of the waiting people and avoids risky crossing behaviors by reasonably arranging and displaying the waiting time, and improving the crossing efficiency.

The invention provides a pedestrian crosswalk signal lamp green wave self-adaption control system and a method thereof; by fully utilizing the phenomenon that the dead time of road vehicles is more than pedestrian walking time when crossing the street, the pedestrian crosswalk signal lamp is controlled by the detection of the vehicle condition at the reserved area in front of the pedestrian crosswalk; the control method of the signal lamp is that: the control parameter of the signal lamp can be automatically adjusted according to the dynamic change of traffic flow, and the control system can be suitable for the change of the traffic flow automatically. When the vehicle condition in a certain distance in front of the pedestrian crosswalk is detected, the technology that a plurality of detected areas are arranged on the road is adopted to replace real physical induction coil; the number, size and position of the detected area can be set, or the relation of actual road distance and image pixel pitch is realized by adopting the camera calibration technology.

The invention relates to a method for realizing blind road and pedestrian crossing real-time detection by utilizing computer vision technology, including the following steps: firstly, image data of blind road is acquired, and image data of the environment surrounding the blind road is acquired; image data of pedestrian crossing is acquired, and image data of the environment surrounding the pedestrian crossing is acquired; secondly, an affine transformation model is utilized, and affine transformation is carried out on the image data of the blind road and pedestrian crossing acquired in the step one by random transformation of parameter in the model, so as to generate new image data of the blind road and pedestrian crossing, and the new image data and the original image data of the blind road and pedestrian crossing form a positive sample set and a negative sample set; thirdly, the positive sample set and negative sample set established in the step two are utilized to carry out grader training, so as to generate a grader for blind road and a grader for pedestrian crossing; fourthly, detection is carried out on the actually captured image, the required target is detected from the image, and post processing is carried out on the detection result, thus obtaining the position and trend of the target.

The invention provides a pedestrian crossing early warning device and monitoring system. The device comprises an internet of things sensing unit, a big data model analysis unit, a control unit and analarm unit. The internet of things sensing unit realize all-weather real-time detection of trunk / branch road vehicles and crossing pedestrians. The big data model analysis unit determines an intersection safety early warning level according to the detection information. The control unit provides pedestrians passing through zebra crossings and vehicles with safety early warning information according to output drive commands. The alarm unit performs safety early warning. The device can provide early warning information for pedestrians on the two sides of zebra crossings who are about to cross streets and provide passage information prompt for vehicles which run on branch roads and crossroads without signal control in villages and are about to run to trunk roads, thereby effectively reducingtraffic accidents caused by collision of vehicles from trunk roads and branch roads. The invention also provides the third-party monitoring system which can comprehensively monitor all the front end devices in the range of road networks and provide effective support data for planning and management of pedestrian crossing of slow traffic and apparatus operation and maintenance.

The method includes steps: obtaining data of an original electronic map about urban road; generating map of road junction from road map; channelizing specific road junction, and generating initialized normal road junction with three traffic lanes; editing sections of roads, modifying attribute and shape of sections of road, adding and deleting lanes according to practical situation; process is carried out by superposing each map layer including independent map layers: road, road junction, traffic lane, crosswalk, green area etc. Features are: simple operation, displaying actual status at road junctions, timely change based on actual situation.

The invention relates to an integrated design approach for urban public transport system based on the mode of one road, one line and direct movement, as well as a configuration method for urban road and public transport system, in particular to an integrated design approach for urban public transport system based on the mode of one road, one line and direct movement. The integrated design approach is characterized in that: the roads are arranged into a grid shape, and a direct-movement bus line is arranged at one road; a plurality of bus stops are arranged at the crossroads, furthermore, the bus stop is close to the crosswalk at the crossroad. The integrated design approach aims at providing the integrated design approach for urban public transport system based on the mode of one road, one line and direct movement. The integrated design approach for urban public transport system based on the mode of one road has the advantages that: the transport efficiency for urban ground public transport system can be improved significantly; the bus travel time can be reduced; the interference between the buses and social vehicles also can be reduced; the interference between passengers and the traffic flow can be less, moreover, the safety of the transportation system can be improved.

A wireless push button device and a method for wireless registration of request for activation of a desired pedestrian crosswalk signal system on an existing traffic signal pole comprising of a remote control and a receiver assembly wherein said remote control sends wireless signal to receiver assembly in order to register request for activating a pedestrian crosswalk signal system from a distance and the receiver assembly compares the received signal with that of stored values and sends back random signal for invalid signal, sends back encrypted signal for valid signal and walk signal OFF state and special signal for valid angle and walk signal ON state to the remote control whereby said remote control confirms activation of the pedestrian crosswalk signal system to an user by activating said LED, vibrator / buzzer and also confirms the user when it is safe to use crosswalk by turning on said LED and said vibrator / buzzer.

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 present invention provides a traffic signal control system of crossing roads for passerby and comprises an upper intersection signal control device and a passerby crossing road signal control device. The present invention is characterized in that a signal control processing device which is connected with the upper intersection signal control device and the passerby crossing road signal control device is also included. The present invention also provides a traffic signal control method of crossing roads for passerby. The traffic signal control system of crossing roads for passerby and the method thereof provided by the present invention control the passerby crossing roads and the upper intersection in phase. When a crosswalk is in passerby crossing road button type signal control mode, the crossing signal control of passerby crossing roads and the upper intersection signals are ensured to be controlled in phase to form a green wave band by optimization calculation of system, thus adequately enhancing the utilization rate of roads based on that the passersby has an adequate crossing road wayleave.

A pre-cast textured tile system and method for positioning on walkways, crosswalks and other areas of pedestrian traffic for providing direction and warning to visually handicapped persons. The tile may be made for embedding in fresh concrete on a walking surface and have a substantially planar piece with a top surface and a bottom surface, the top surface having a plurality of raised elements and the bottom surface being scarified. A number of the tiles may be aligned so as to easily adapt to a number of different shapes and purposes. The tiles are not interconnected, but rather abut one another with at least one edge being flush to the walking surface.

The invention relates to vehicle violation snapshot techniques and discloses a snapshot device for a vehicle passing through a pedestrian crosswalk and cutting in with a pedestrian and a snapshot method thereof. The snapshot device comprises a vertical rod installed on a road side of the pedestrian crosswalk. An image collection device, a microprocessor and a data storage device are installed on the vertical rod. The image collection device comprises a digital camera arranged on the vertical rod and a traffic signal collector arranged on the vertical rod. An output end of the digital camera and an output end of the traffic signal collector are connected with the microprocessor. An output end of the microprocessor is connected with the data storage device. The snapshot method comprises traffic signal collection and judgment, image collection, microprocessor identification and verification and storage into the data storage device. The snapshot device for the vehicle passing through the pedestrian crosswalk and cutting in with the pedestrian and the snapshot method thereof can complete a snapshot process for the vehicle which cuts in with the pedestrian when passing through the pedestrian crosswalk, and are low in investment cost, high in working reliability and suitable for large-scale popularization and usage.