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1493 results about "Intelligent transport" patented technology

License plate localization and identification method based on high-definition image

The invention discloses a license plate localization and identification method based on a high-definition image, comprising the following steps of: (1) carrying out one-time downsampling on the original color images, graying the downsampled images and carrying out vertical edge detection and binaryzation on the images, and carrying out license plate rough localization by utilizing vertical edge information to obtain all candidate license plate areas; (2) mapping all the candidate license plate areas into the original images and sending to a trained cascade Adaboost grader so as to remove non-license plate areas; (3) carrying tilt correction on the license plate areas obtained in the step (2); (4) carrying out character segmentation on the license plate areas obtained in the step (3); and (5) identifying segmented characters. The invention can rapidly and effectively extract a plurality of license plates in different sizes from a complicated scene and can effectively improve the character identification accuracy. The license plate localization and identification method has wide application prospect in the aspects of intelligent transportation, parking lot management, residential quarter management, and the like.
Owner:HUNAN UNIV +1

Vehicle-express delivery cabinet-unmanned aerial vehicle-based express delivery method

The invention provides a vehicle-express delivery cabinet-unmanned aerial vehicle-based express delivery method. According to the method, express items to be delivered are orderly placed in an express delivery cabinet on an intelligent transport vehicle; after the intelligent transport vehicle reaches a destination based on a planned route, recipients are informed to pick up the express items from the vehicle-mounted express delivery cabinet; if the recipients cannot come to pick up the express items and demand that the express items should be delivered via an unmanned aerial vehicle, a vehicle-mounted controller controls an inner cabinet door of the express delivery cabinet to open, a minisize piler is controlled to take the express items from the express delivery cabinet to a cargo pickup opening of the unmanned aerial vehicle, and at last the unmanned aerial vehicle picks up the express items and completes final delivery. The delivery and transport method designed in the invention is based on combination of the intelligent automobile and the express delivery cabinet and/or the unmanned aerial vehicle; consumption of resources such as labor force, vehicles, fuel and the like can be reduced; express delivery efficiency in remote areas can be improved.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

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

Automatic lane line identification method based on low-altitude aerial images

The invention provides an automatic lane line identification method based on low-altitude aerial images. The automatic lane line identification method based on the low-altitude aerial images is applied to the field of intelligent transportation. The automatic lane line identification method based on the low-altitude aerial images comprises the steps that (1) an original image of a road is collected through low-altitude aircrafts, and the situation that the shooting angle of the aerial photography road is in the horizontal direction, and the area of the road is arranged in the middle of the image is ensured; (2) the collected image is converted into a grayscale image, the contrast ratio is improved, the grayscale image is copied, and an edge detection image and a binarization image are obtained according to the grayscale image; (3) connected areas are detected in the edge detection image and the binarization image, and characteristics of the connected areas are recorded; (4) the connected areas are deleted according to the number of pixels of the connected areas, the number of connected boundaries, the size of a bounding rectangle and variance values to obtain a central road line; (5) search is carried out on the two sides of the central road line to find roadside lane lines. The automatic lane line identification method based on the low-altitude aerial images is easy and convenient to calculate, and high in arithmetic speed and reliability, the road portion in an aerial photography video can be effectively extracted, straight roads and curve roads in the aerial images can be detected, and the automatic lane line identification method based on the low-altitude aerial images cannot be disturbed by background changes, and is high in accuracy.
Owner:BEIHANG UNIV

Intelligent transportation integration control platform system based on Web geographical information system technology

The invention relates to an intelligent transportation integration control platform system based on a Web geographical information system technology. The system comprises an equipment integration system portion, an integration application system portion and a center database. The equipment integration system portion comprises a signal control subsystem, an electronic police subsystem, a high definition bayonet subsystem, a video monitoring subsystem, a transportation guidance subsystem and a transportation information acquisition subsystem. The integration application system portion comprises an integration transportation geography information subsystem, a police facility equipment management subsystem, a guard plan management subsystem, a real-time traffic condition issuing subsystem, a bayonet deploying and monitoring alarm subsystem and an integration transportation information service subsystem. By using the intelligent transportation integration control platform system based on the Web geographical information system technology, based on Web GIS, various kinds of intelligent transportation system information resources are highly integrated, and unified command and scheduling of urban transportation security management are realized. Operation and monitoring are convenient and fast. Working performance is stable and reliable. A suitable scope is wide.
Owner:SHANGHAI BAOKANG ELECTRONICS CONTROL ENG

Real-time traffic condition judging method based on time window

The invention discloses a real-time traffic condition judging method based on a time window. The method comprises the following steps of: performing data preprocessing; performing traffic state clustering initialization through a two-step clustering algorithm; updating the time window to obtain the traffic flow base data of a current time interval; and updating two-step clustering algorithm parameters and a clustering center, and judging the real-time traffic state of the current time interval. According to the invention, based on historical traffic flow base data, the traffic state clustering initialization is performed by a two-step clustering algorithm, and the optimal classification of the traffic state is obtained through primary selection of the optimal cluster number and determination of the optimal cluster number respectively; then, based on the initialization result, the real-time data is introduced, and the data is updated dynamically by use of a storage structure of the time window; and finally, the two-step clustering algorithm parameters and the clustering center are calculated and updated in real time, the optimal classification of the traffic state is re-determined, and the real-time traffic state of the current time interval is judged. The method makes up for the limitation of the conventional traffic state judging algorithm, and is of positive significance to promoting the construction of the urban intelligent transport system.
Owner:SOUTHEAST UNIV

Intelligent transportation anti-congestion system and device

InactiveCN103295406AGood choiceIntelligent adjustment of working conditionsControlling traffic signalsNetwork communicationMarine navigation
The invention discloses an intelligent transportation anti-congestion method. The method comprises the steps that a vehicle-mounted terminal detects the speed of a vehicle and determines the position of the vehicle; a server side receives speed and position data sent by the vehicle-mounted terminal; the server side calculates road congestion indexes according to the speed and position data; the vehicle-mounted terminal receives the data of the server side and displays road congestion conditions; and the navigation of the vehicle-mounted terminal plans to avoid congestion sections according to the road congestion conditions. The invention further discloses an intelligent transportation anti-congestion device. The device comprises the vehicle-mounted terminal, the server side and a traffic light controller. The server side comprises a server. The server is connected with a first network communication module, a second network communication module, a road congestion index calculation module and a statistical analysis module and performs data interaction and control. According to the intelligent transportation anti-congestion system and device, the characteristic of accurate positioning of the vehicle-mounted terminal is adopted, road selection is facilitated for users, and meanwhile, working conditions of traffic lights can be adjusted intelligently.
Owner:GUANGZHOU WALKDA ELECTRONICS TECH

Wheel-type intelligent transport vehicle applied to protected agriculture

The invention discloses a wheel-type intelligent transport vehicle applied to protected agriculture. The wheel-type intelligent transport vehicle comprises a moving platform, a navigation system, an obstacle detection system, a material bearing device and a control system. The moving platform is used for providing power to the wheel-type intelligent transport vehicle; the navigation system, which is at a front end of a chassis of the moving platform, is used for independent navigation of the wheel-type intelligent transport vehicle; the obstacle detection system, which surrounds the vehicle body of the wheel-type intelligent transport vehicle, is used for detecting whether there is an obstacle within a predetermined distance around the wheel-type intelligent transport vehicle and sending an obstacle signal to the control system; the wheel-type intelligent transport vehicle is above the moving platform; and the control system, which is electrically connected with the navigation system, the obstacle detection system and the moving platform, is used for receiving signals sent by the navigation system and the obstacle detection system and controlling motions of the moving platform. According to the provided wheel-type intelligent transport vehicle applied to protected agriculture in the invention, on the condition of unmanned operation, materials for production can be safely conveyed to a plurality of assigned stations along a planned path.
Owner:CHINA AGRI UNIV

System and method for carrying out toll authentication in intelligent transport system

The invention provides a system and method for carrying out the toll authentication in an intelligent transport system. The system provided by the invention comprises a vehicle-mounted unit and an authentication label, wherein the vehicle-mounted unit is installed on a vehicle and used for executing fee reduction in a toll station; the authentication label is installed on the vehicle and arranged to be matched with the vehicle-mounted unit; the authentication label is used for executing the authentication with the vehicle-mounted unit by carrying out the wireless communication with the vehicle-mounted unit; the authentication label is used for determining whether the vehicle-mounted unit is matched with the authentication label or not; when the authentication result shows that the vehicle-mounted unit is matched with the authentication label, the vehicle-mounted unit is allowed to be continuously operated; and when the authentication result shows that the vehicle-mounted unit is not matched with the authentication label, the vehicle-mounted unit enters a failure state, thus the fee reduction can not be executed. The invention can be applied to the intelligent transport system, thereby preventing the vehicle-mounted unit from being stolen in an electronic toll collection scheme.
Owner:SHENZHEN GENVICT TECH

Passenger going-out behavior analysis method based on subway card-swiping data

The invention discloses a passenger going-out behavior analysis method based on subway card-swiping data. The passenger going-out behavior analysis method is characterized in that the subway going-out behaviors can be classified, and the classification results have the obvious and easy-to-observe characteristics, and can be widely used for the intelligent traffic passenger going-out behavior analysis. The passenger going-out behavior analysis method is characterized in that S1, data pre-processing can be carried out; original data can be merged and organized, and passenger going-out records can be acquired; every passenger going-out record comprises a passenger going-out entrance station, an entrance card-swiping time, an exit station, and an exit card-swiping time; S2, characteristics can be extracted; according to the passenger going-out records, the passenger entrance temporal clustering can be carried out to acquire the fixed going-out days of every passenger, and then the passenger going-out characteristics can be acquired after the extraction of the passenger going-out characteristics; S3, passengers can be clustered; the passenger clustering can be carried out according to the passenger going-out characteristics, and the passenger clustering result can be acquired and analyzed.
Owner:BEIJING UNIV OF TECH
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