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1755 results about "Road traffic safety" patented technology

Road traffic safety refers to the methods and measures used to prevent road users from being killed or seriously injured. Typical road users include: pedestrians, cyclists, motorists, vehicle passengers, horse-riders and passengers of on-road public transport (mainly buses and trams).

Multifunctional V2X intelligent roadside base station system

The invention requests to protect a multifunctional V2X intelligent roadside base station system. The system comprises roadside sensing equipment, an MEC server, a high-precision positioning service module, a multi-source intelligent roadside sensing information fusion module and a 5G/LTE-V communication module. An intelligent roadside device integrating C-V2X communication, environmental perception and target recognition, high-precision positioning and the like is designed, and the problem that multi-device information fusion and integration are inconvenient in intelligent transportation is solved. In the system, a C-V2X intelligent road side system architecture and a target layer multi-source information fusion method are designed. Road side multi-source environment cooperative sensing is combined, real-time traffic scheduling of the intersection is realized by using a traffic scheduling module in the MEC server, and communication and high-precision positioning services are providedfor vehicle driving, and finally the target information after fusion processing is broadcasted to other vehicles or pedestrians through a C-V2X RSU (LTE-V2X/5G V2X and the like) according to an application layer standard data format, so the driving and traffic safety is improved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Judgment and prediction method of driving behavior intention

The present invention relates to the field of traffic safety, in particular to a judgment and prediction method of driving behavior intention based on the implicit Markov model (HMM), aiming to overcome the defect that the existing driving behavior intention recognition and prediction technology does not take into account the dynamics and continuity of driving behavior, as well as complex behaviors such as lane changing, car following and braking and the like. The judgment and prediction method of driving behavior intention obtains time series segmentation data from cluster analysis of dynamic driving data, the linear direction HMM, lateral HMM and speed classification model are trained respectively, and the obtained identification results are regarded as the observation sequence of behavior recognition layer; Then, off-line training is performed to deal with normal or emergency braking, normal or emergency lane change, normal or dangerous driving behavior, and multi dimensional discrete HMM model; according to the model parameters and the observation sequence, the next time step driving behavior can be predicted. The judgment and prediction method of driving behavior intention takes the complexity and continuity of driving behavior into account and can dynamically judge and predict the driving behavior intention and warn the dangerous behavior, and accordingly can be applied to driving behavior evaluation and driving assistance system.
Owner:BEIJING JIAOTONG UNIV

Important traffic accident active rescuing system based on internet of vehicles

InactiveCN103413411ARealize automatic helpTimely professional assistanceRoad vehicles traffic controlAlarmsAlarm messageTraffic accident
The invention relates to a traffic safety rescuing system, in particular to an important traffic accident active rescuing system based on the internet of vehicles. The important traffic accident active rescuing system is composed of a vehicle-mounted terminal, a monitoring center upper computer system, an emergency alarming terminal and the mobile internet. When the vehicle speed is higher than or equal to a certain set threshold value, an alarm program is activated by the vehicle-mounted terminal to continuously detect the two variables of the vehicle accelerated speed and the speed-to-zero time, and alarming is triggered when the two variables accord with the designed threshold value; a voice and buzzing alarm is given by the vehicle-mounted terminal to draw attention of pedestrians and nearby residents to acquire fast rescuing from a close distance; alarming information and accident spot information are sent to the monitoring center upper computer system and the emergency alarming terminal through the internet of vehicles, and remote alarming is triggered to acquire accurate and timely rescuing from professional organizations. The traffic safety rescuing system can actively carry out short-range and remote alarming and determine accident spots when the driver is insensible or gets lost, and can greatly shorten accident rescuing time and guarantee life and property safety.
Owner:苏州采波传感技术有限公司

Mountainous road traffic safety dynamic early-warning system

The invention relates to a mountainous road traffic safety dynamic early-warning system which comprises a traffic accident analysis early-warning module, a traffic flow detection module, a road alignment module, a weather forecast module and a variable traffic sign LED display screen, wherein the traffic flow detection module, the road alignment module, the weather forecast module and the variable traffic sign LED display screen are connected with the traffic accident analysis early-warning module. The traffic flow detection module is used for dynamically collecting traffic flow data on the road, the weather forecast module is used for dynamically collecting weather conditions, the road alignment module conducts static collection and is used for collecting the geometrical features of the current road alignment, and the traffic accident analysis early-warning module conducts data real-time interaction with the traffic flow detection module, the weather module and the road alignment module. The mountainous road traffic safety dynamic early-warning system is mainly used for mountainous road traffic safety early-warning and is installed on a place where accidents frequently occur, and traffic accidents such as tailgating, handrail collision and the like when vehicles run on the mountainous road are avoided according to traffic controlling strategies of device output vehicle speed limit, traffic flow control and the like.
Owner:四川九通智路科技有限公司

Driving vehicle collision early-warning method and device

The invention discloses a driving vehicle collision early-warning method and a driving vehicle collision early-warning device. The driving vehicle collision early-warning method comprises the steps of: acquiring position information and driving information of a local vehicle, and receiving position information and driving information broadcasted by a remote vehicle within a preset distance of the local vehicle; generating a local prediction driving trajectory of the local vehicle in a preset duration from the present moment according to the local position information and the local driving information; generating a remote prediction driving trajectory of the remote vehicle in a preset duration from the present moment according to the remote position information and the remote driving information; judging whether the local prediction driving trajectory and the remote prediction driving trajectory have a trajectory intersection point or not; and outputting preset collision early-warning information if the local prediction driving trajectory and the remote prediction driving trajectory has the trajectory intersection point. The driving vehicle collision early-warning method and the driving vehicle collision early-warning device provided by the invention have the advantages of being free from the limitation of the field of view in the process of acquiring the position information and the driving information, high in accuracy rate of acquired information, low in cost, capable of forming real-time effective early warning and improving the road traffic safety.
Owner:LAUNCH TECH CO LTD

Signal lamp state terminal display method and system based on cooperative vehicle infrastructure technology

The invention provides a signal lamp state terminal display method and a system based on a cooperative vehicle infrastructure technology. The system comprises a traffic signal machine, a roadside module, a vehicle infrastructure communication module and a terminal device, wherein the traffic signal machine is used for generating signal lamp phase timing information and transmitting the information to the roadside module; the roadside module is used for publishing intersection position information, local MAP information and a real-time SPAT information; the vehicle infrastructure communication module is used for information data interaction between the terminal device and the roadside module; and the terminal device is used for acquiring, processing and displaying the vehicle motion state data and terminal information. The cooperative vehicle-infrastructure technology is used for realizing real-time displaying of the signal lamp state on the terminal device, a driver can conveniently judge the vehicle passing time and the queue time, the road traffic safety is enhanced, the road traffic pressure is reduced, influences from the environment, the vehicle and the driver do not exist, and the system use efficiency is high; and red lamp early warning or automatic control can also be realized, the intersection driving safety is ensured, and a behavior of running the red lamp to break the law can be avoided.
Owner:招商局检测车辆技术研究院有限公司 +1

A traffic safety pre-warning system and method for pedestrians using mobile phones

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.
Owner:WUHAN UNIV OF TECH

Expressway traffic capacity cooperative regulation and control method based on lane dynamic allocation of CAVs mixed traffic flow

The invention discloses an expressway traffic capacity cooperative regulation and control method based on lane dynamic allocation of CAVs mixed traffic flow, wherein the method comprises the steps: setting a special lane for a networked automatic driving vehicle on an expressway under the condition that the networked automatic driving vehicle CAVs has certain market permeability, and through the constraint of multiple factors, establishing an integer nonlinear lane dynamic allocation model; and dynamically adjusting the distribution of lane rights and the driving data of the vehicle, outputting a change curve of the traffic capacity of the expressway, selecting an optimization solution, feeding back to a traffic control platform, and dynamically adjusting an expressway lane distribution scheme and vehicle driving data management and control in time to realize cooperative regulation and control of the traffic capacity of the expressway. According to the method, the CAVs special lane isreasonably arranged to separate the mixed traffic flow, and meanwhile, the influence of the road service level and a confluence area on the road is considered, so that the designed traffic capacity ofthe basic road section of the expressway meets the actual traffic requirements, and the purposes of improving the traffic efficiency and the traffic safety are achieved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Outdoor AGV traffic avoidance method and device

The invention discloses an AGV traffic avoidance technology applied to an outdoor environment and discloses a corresponding implementation device to achieve traffic safety avoidance between AGVs and between the AGV and social vehicles and pedestrians in the outdoor environment. The technology includes step (1) of automatically generating a path by the AGV and analyzing whether there is an overlapwith the remaining paths of other AGVs, and inserting an avoidance point before the overlapping portion; step (2) of stopping the AGV after the AGV runs to the avoidance point, continuously querying aposition state of the corresponding avoiding AGV, and accordingly determining whether an avoidance area can be entered; step (3) of pre-inserting an avoiding function point for the running AGV, and ensuring that the current AGV with a high priority runs smoothly; step (4) of adopting a mode of transforming traffic lights for the avoidance of the social vehicles and the pedestrians, adding a communication and control module, and performing active control and modification or following an indication of the traffic lights according to the priority of the AGV. A visual recognition module can alsobe added to identify passing identifiers of the traffic lights, thereby judging whether or not the traffic can pass.
Owner:骁越科技(青岛)有限公司

Collision-prevention control method for vehicle

The invention discloses a collision-prevention control method for a vehicle. The speed of the vehicle itself, the accelerated speed of the vehicle itself, the speed of the front car, the accelerated speed of the front car and the information of the spacing between the vehicle itself and the front car are obtained through the environmental perception capacity of the vehicle, and a steering/brake collision-prevention action decision-making mechanism is constructed. If the current vehicle collision risk degree meets the expression shown in the description and the vertical spacing Dadj between thevehicle itself and the front car is not smaller than the minimum vertical spacing DM-Fd between the vehicle itself and the front car, steering collision prevention is conducted; if the current vehicle collision risk degree meets the expression shown in the description or the current road condition does not meet the steering collision prevention condition, vertical brake collision prevention control is conducted. Through the combination of the steering collision prevention and the brake collision prevention control, it is ensured that the brake collision prevention action or the steering collision prevention action which is highest in safety benefit is selected when the vehicle is in danger, the collision-prevention capacity of the intelligent vehicle is greatly improved, and the road traffic safety level is improved.
Owner:CHANGAN UNIV

Internet-based unmanned electric automobile service system

The invention discloses an internet-based unmanned electric automobile service system. The system is composed of a server, a passenger client and a vehicle-mounted information processing apparatus. First of all, information of a starting point where a passing is located and a terminal point which the passenger wants to head for is emitted through the client of the mobile phone of the passenger; a control center server receives and processes the information, emits an instruction to an idle electric automobile nearest to the starting point and simultaneously sends a verification code to the passenger; the idle electric automobile receives the instruction and arrives at the starting point specified by the passenger; the passenger confirms the reserved electric automobile through a license plate number, and after the passenger gets on the automobile and the verification code is successively approved, the electric automobile starts driving; after the terminal point is reached, the passenger confirms that he arrives at the terminal point, an automobile door opens, and the passenger gets off the automobile; and the electric automobile executes a new task or enters to a nearest total garage or a sub garage. According to the invention, point-to-point traffic of city residents is realized by use of a cheapest, safe, efficient and environmental-friendly mode, the traffic cost of the whole society is decreased, environment is protected to the maximum degree, and road traffic safety hidden risks are reduced to the maximum degree.
Owner:卢泰霖

Method of controlling priority signal for right-turning vehicles on straight-going and right-turning shared lane at intersection

The invention discloses a method of controlling a priority signal for right-turning vehicles on a straight-going and right-turning shared lane at an intersection. A left-turning guide line is arranged at the entrance of each intersection; a straight-going waiting area of a straight-going and right-turning shared lane is set in the front of the straight-going and right-turning shared lane at the intersection; a group of predicting signal lamps for the straight-going waiting area of the straight-going and right-turning shared lane are arranged near the stop line of the entrance having the straight-going waiting area of the straight-going and right-turning shared lane in the front and are used for controlling motor vehicles on the straight-going and right-turning shared lane to enter the waiting area; after straight-going vehicles on an intersection lane completely pass over a conflict point at the right crossing point with the waiting area of the straight-going and right-turning shared lane in the front, vehicles on the straight-going and right-turning shared lane enter the waiting zone; the main signal lamp is provided with an independent left-turning phase; the phase release sequence of the main signal lamp is straight-going prior to left-turning, so that right-turning vehicles are prior to cross the intersection; and right-turning vehicles can cross the intersection when left-turning vehicles on the intersection lane are released; therefore, the passing efficiency is improved and the delay time is reduced; no pedestrians and bicycles interfere with the running of the vehicles at this moment, so that the traffic safety is improved.
Owner:南京春宇建设工程有限公司

Method and system for remote fault detection of traffic signal controller

InactiveCN101567130AConducive to targeted emergency repairsEnsure traffic safetyTraffic control supervisionTraffic signalState parameter
The invention discloses a method and a system for remote fault detection of a traffic signal controller. The system comprises a system consisting of a fault detection module arranged in a box body of the traffic signal controller and a server arranged in a traffic management center, and a program of module operation, wherein the fault detection module is connected with a main controller of the traffic signal controller through an internal bus, performs real-time receiving and processing on state information acquired by the main controller, regularly sends the state information to the remote server according to a format if the normal operation of the controller is detected, and detects the deviation of state parameters for advance accident alarm at the same time; and the fault detection module automatically alarms the remote server through a network if the abnormal state of the controller is detected, submits detailed fault information at the same time, and provides remote connection and state query services. The method and the system can timely and automatically notify related departments for the treatment under the condition of the damaged traffic signal controller, support the real-time state detection and remote fault diagnosis of the signal controller, and can be widely used for guaranteeing traffic safety.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI
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