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With the growing of hazardous chemicals transportation, supervision system for hazardous chemicals transportation is getting more and more attention. In China, supervisory system for hazardous chemicals is limited to tracking by Global Positioning System (GPS), positioning and simple data collection and judgments which cannot achieve a real sense of risk pre-warning. The paper develops a system architecture...
The scheduling of transportation systems has traditionally been done once a day. At beginning of a working day, the planner establishes which tasks will be carried out by each vehicle. Then, traffic jam, breakdown and any unexpected problem will cause delays on our timetable. In this paper, we propose to use real-time vehicle position knowledge to solve this problem. So, the planner is permanently...
To ensure the security of the payment of Logistics vehicles, we design a specialized cash box based on GPS. The design combines GPS satellite positioning technology, GPRS communications technology, electronic locks and microcontrollers and other advanced technologies. This cash box on the logistics vehicle is characterized by opening designated locations, remote control, an alarm for abnormal state,...
The initial real-time information system for Bus Rapid Transit (BRT) is based on Global Positioning System (GPS) in Ji'nan, it can't provide accurate real-time information of buses arrival/departure at stop, and missing data of GPS is often found, especially under elevated highway or in bad weather. The papers put forward a new way to provide real-time transit information for BRT based on GPS/Signpost...
The relationship of road conditions and time change on the basis of people-machine-environmental coupling is researched. A prediction method of time recursive to confirm the shortest time of route is proposed. This method is as an accumulated experience basing on the idea of supervised learning in artificial neural network, colligating with the difference of road conditions during different time section,...
This paper is based on NDRC project "National Large and medium-sized agricultural products market informatization construction projects," developing the logistics process of real-time tracking management system for real-time Management of agricultural products in China. The real-time monitoring system of the logistics is designed with four subsystems: testing the temperature and humidity...
A new floating car data technology in Hefei has been developed that provides real-time traffic information within Hefei's two ring road. It is based on the collection of localisation data, speed, direction of travel and time information from GPS in vehicles that are being driven. The scope of the project is to development and creation of a Web-based data mart for the collection of FCD. The aim of...
In order to real-timely obtain road environmental information of vehicle's current location in its moving process, and to make its stalls transform adapt to the current road conditions, an algorithm was proposed, which is about how to acquire road information based on GPS and electronic map. Firstly, use GPS positioning technology to obtain information of the current position and direction of vehicles,...
This paper presents a real time tracking system that provides accurate localizations of the tracked vehicle with low cost. The system is implemented using GM862 cellular quad band module. A monitoring server and a graphical user interface on a website have also been implemented using Microsoft SQL Server 2003 and ASP.net to view the current location of a vehicle on a specific map. The system provides...
Vehicle monitoring system is a high technology system that includes geographical information system (GIS), global positioning system (GPS) and modern communications technology. Vehicles monitoring system can monitor and deploy of the vehicles reasonable through the accurate positioning, with communication technology and digital maps. The paper introduces the composition, the operating principle, the...
This paper analyzes the problems of creating method of traditional spatial index in the digital map for car-navigation system and suggests a new kind of creating method of spatial index based on two-level interleaving grid. It analyzes the principle of this algorithm and discusses the retrieval and storage technology of road information. The experimental result indicates that the use of this method...
In this paper, we present and analyze an algorithm for mapping discrete GPS data gathered from vehicles to a continuous flow of data to determine the time to traverse a road section. Vehicle-tracking devices are installed in 80 probe vehicles in the Anchorage area, and a specific roadway section was chosen as a test section. Drivers for this study drove from before the start of the test roadway section...
RFID has become one of the emerging technologies for a wide area of applications such as cold chain system and blood transportation. To support a safe transaction of tagged items in those systems, it is necessary to provide the history of item's status and location by using other devices, including a RFID sensor tag, GPS, and RTLS. Because of high communication cost to RFID middleware on the move,...
Carpooling is the concept of people sharing a vehicle for a ride when their departure and destination locations are similar. Dynamic car pool [1] is the dynamic coordination of ride offerings and ride requests based on the, in real time created, transportation and offering needs. Taxi pool [2] is a mode of transport that falls between private transport and conventional bus transport. The routes are...
To improve the mine haul trucks operating safety in surface mining, a novel driving assisted system based on the GPS, mesh-wireless networks, and the Google-Earth API was developed. It has the capability to pin-point and track vehicles in real time using a 3D interface, which is based on user-based AutoCAD mine maps using the Google-Earth graphics interface. The research results indicate that it increases...
Based on the background that vehicle monitoring system had urgent necessity recently, the paper put forward a overall scheme of vehicle monitoring system combining with global positioning system (GPS), global system for mobile communication (GSM) and geographical information system (GIS), introduced the key technologies of this monitoring center software, designed the function software of monitoring...
Vision systems are nowadays very promising for many on-board vehicles perception functionalities, like obstacles detection/recognition and ego-localization. In this paper, we present a 3D visual odometric method that uses a stereo-vision system to estimate the 3D ego-motion of a vehicle in outdoor road conditions. In order to run in real-time, the studied technique is sparse meaning that it makes...
This research aims at the bus holding strategies for the simulation of mass rapid transit (MRT) transferring system in a terminal station with platform constraints for bus in the metropolitan area. We developed and evaluated the transfer system through computer simulation models for MRT with bus system that the goals of bus holding strategies in the model were: reduce bus waiting time, reduce passengers...
Vision difference or inattention to the traffic condition often causes the unnecessary traffic accidents while driving. Therefore, this study is to fast detect both the preceding vehicle and lane marking at the least response time 0.5972 seconds. After coordinate transformation converts image plane coordinates of the preceding vehicle to GPS coordinates, the headway between cars is obtained to assist...
For most tracking applications the Kalman filter is reliable and efficient, but it is limited to a relatively restricted class of linear Gaussian problems. Particle filters are proving to be dependable methods for stochastic dynamic estimation. We will present in this paper, an accurate localization strategy for vehicles in urban environments based on the particle filters, the communication between...
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