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Accurate and reliable positioning of vehicles is a decisive factor for many Intelligent Transportation System (ITS) applications. Under the cooperative environment, the eco-driving at specific scenarios, like intersections, requires vehicle motion state information, which can be provided by Global Navigation Satellite System (GNSS) with an integrity monitoring capability. In order to provide effective...
Accurate and safe train position determination is of great importance for railway systems. Additionally, it has become one of the biggest challenges for the Safety-of-Life (SoL) services in railway transport systems using GNSS techniques. The critical performance requirements of these services promote the users to develop safe Train Positioning Systems (TPSs), in which integrity has to be highly concerned...
Train positioning is a fundamental function which is required by many location-based railway applications. The rapid development of satellite navigation technology enables a better cost-effectiveness for the safety-critical railway train control systems. When using BDS (BeiDou Navigation Satellite System) in train control, it has to be ensured the positioning module takes full consideration of the...
Data fusion algorithm is an important guarantee about the performance level and complete function of the train positioning system. Since conventional Kalman filter methods in GNSS/INS integration frame could not solve the problem of nonlinear model. In this paper the Gaussian particle filter (GPF) is introduced, which is an efficient variant on the particle filtering algorithm for nonlinear hybrid...
Traffic Emergency Command System is a vital part of City Emergency Command System. Besides, studies on the emergency processing procedures are the foundation of studying Emergency Command System. The thesis is going to introduce the concept of HTCPN, elaborating its advantages in Emergency Command System. The thesis gives a detailed explanation of HTCPN modeling procedures and has done simulation...
According to two uranium mine air vents when the normal operation of the monitoring data, It was been projected the distribution of radioactive nuclide effluents, emissions, its main mechanism of radionuclide migration and the end result was discussed and studied uranium mine air vents on the surface run-time Ecology (atmosphere, soil, vegetation, etc.) environmental impact, it shows: With climate...
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