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The paper presents a five-region nonlinear scaling algorithm to solve the scaling distortion when aspect ratio of target image is different from aspect ratio of source image. Based on the region points set by users, it can adjust scaling factor automatically to make horizontal scaling ratio keep the same vertical scaling ratio in the middle region and different in other regions. Simulation results...
Railway signaling communication is a kind of safety-related processing and the information has to be delivered safely. RSSP-1 Railway Signal Safety Protocol is a safety communication protocol which aims at protecting the message transmission between railway signaling safety-related equipment in closed transmission systems. CPN is suitable for the verification of the correctness and safety characteristics...
Nowadays, communication technology is increasingly used in Chinese Train Control System. And the Railway Signal Safety Communication protocol is the upper layer protocol that ensures safety transmission of safety related information in a non-trusted channel. The characteristics and behavior pattern of the protocol are closely related to the safety of the whole railway signal system. This paper simulates...
The road capacity can be increased when utilizing the real-time traffic information uploaded by the floating cars. In symmetrical two-route scenario, the influence of the percentage of floating cars (Pflt) on the performance of MVFS and CCFS is analyzed. Simulation results show that Pflt has little influence on the performance of MVFS, while has great influence on the performance of CCFS. The performance...
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