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878results about How to "Improve traffic safety" patented technology

Driving safety early-warning system and method for vehicle at blind zone crossing

The invention provides a driving safety early-warning system for a vehicle at a blind zone crossing. The system comprises a roadside unit and a vehicle-mounted unit. The roadside unit is installed on a transverse bar of a roadside stand column and comprises a camera, a calculating and processing module and a wireless communication module I. The vehicle-mounted unit is installed inside the vehicle and comprises a locating module, a calculating unit, a warning module and a wireless communication module II. The invention further provides a driving safety early-warning method for the vehicle at the blind zone crossing. The calculating and processing module in the roadside unit carries out recognition and classification on the vehicle on a preset road through the camera, obtains the speed, the direction and position coordinates of the vehicle and obtains event information of the blind zone crossing through encoding, and then the event information of the blind zone crossing is broadcast through the wireless communication module I. The vehicle-mounted unit receives the event information of the blind zone crossing through the wireless communication module II and judges the driving safety status of the vehicle in combination with locating and movement status information of the vehicle-mounted unit, and the judgment result is transmitted to the warning module to remind or give an early warning to a driver in sound and graph modes.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Method of controlling V2X service transmission and device

The embodiment of the invention discloses a method of controlling V2X service transmission. The method comprises steps: transmission index parameters for transmitting a V2X service by a terminal are acquired; transmission protocols are selected according to the transmission index parameters, wherein the transmission protocols comprise a transmission protocol based on D2D discovery technology and a transmission protocol based on D2D communication technology; according to the transmission index parameters and the transmission protocols, a resource scheduling model is determined or a resource scheduling model allocated by a base station is received so as to enable the terminal to complete V2X service transmission according to the transmission protocols and the resource scheduling model, wherein the resource scheduling model comprises a base station scheduling model and a resource pool model. The embodiment of the invention also discloses a device for controlling V2X service transmission. By adopting the method and the device of the invention, a transmission mode for different V2X services can be reasonably allocated, and transmission needs of different V2X services can be met.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD

Intelligent going-out and best carport navigation system and navigation method thereof

The invention discloses an intelligent going-out and best carport navigation system and a navigation method of the navigation system. The intelligent going-out and best carport navigation system comprises an optimal path recommendation unit, a traveling car real-time positioning device, a parking guidance master controller, a wireless carport probe, a wireless network communication unit, a central processing unit (CPU) and a liquid crystal touch screen. The best running route is timely recommended on a liquid crystal display by the optimal path recommendation unit according to real-time road conditions, and the optimal path recommendation unit helps an owner to keep away from a blocking road section, so that the owner can arrive at the destination at the top speed. The parking guidance master controller can provide convenient parking lot carport information on the liquid crystal display, so that the owner can find an appropriate parking lot and the best carport with a nearest road in a short time, troubles of the owner for finding the carport are removed accordingly, parking time is saved, and parking speed is quickened. The intelligent going-out and best carport navigation system and the navigation method achieve car dynamic route guiding and carport best guiding functions, provide accurate and comprehensive traffic guidance information on the liquid crystal display, and improve traveling and parking efficiency and quality.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION

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

System and method for calculating driving risks and assisting automobile insurance pricing based on multi-source data

The invention discloses a system and method for calculating driving risks and assisting automobile insurance pricing based on multi-source data. The system includes an intelligent mobile internet terminal and a remote server connected with each other; a plurality of data sensing acquisition units and applications are installed in the intelligent mobile terminal; and the remote server is provided with a risk model algorithm system and includes a scene driving risk analysis sub module, a distracted driving model recognition sub module, a user travel behavior analysis sub module and a driving behavior evaluation and grading system sub module. According to the system and method of the invention, data acquired by the intelligent mobile internet terminal and road traffic information acquired by the remote server are analyzed, and the scores of the sub modules are calculated, and automobile insurance pricing is carried out according to the scores. With the system and method of the invention adopted, based on multi-source data acquisition and fusion, the driving behaviors of users are analyzed, and the travel habits, driving habits and driving risks of the drivers can be effectively calibrated, and therefore, theoretical basis and technical support can be provided for driving behavior-based automobile insurance pricing models.
Owner:MINCHI INFORMATION TECH SHANGHAI CO LTD

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

Method and a device for stabilization control of a vehicle traffic volume

An object of the present invention is to provide a method for improving a phenomenon of traffic congestion, that could occur even if there is no particular obstacles existing on the way, in an automobile or vehicle traffic on a highway or a railway, in which the method allows for a driver to be incorporated in a controlling operation effectively and safely. The present invention provides a method and a device, which is in one hand implemented as a man-machine system in which the operations are shared such that a driver takes in charge of an inter-vehicle distance and speed control, while on the other hand a quantity of controls for stabilizing the inter-vehicle distance sequence is calculated automatically and additionally incorporated by the addition in respective vehicles. The stabilization of the inter-vehicle distance can be realized by employing the distributed control method in which a set of acceleration and deceleration information from a vehicle traveling ahead is appropriately integrated and transmitted in relay to a following vehicle. This enables the stabilization of the inter-vehicle distance sequence without requiring the inter-vehicle distance measurement in itself and the easy installation of equipment, and realizes a method in which safety is ensured by allowing the driver to still take charge of a local control. The suggested control provides an inter-vehicle distance control as well as a stabilization control of a traffic volume including a solution for eliminating the traffic congestion, which can be obtained through said inter-vehicle distance control.
Owner:JAPAN AEROSPACE EXPLORATION AGENCY

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
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