I was going to be a scientist. Haha Just kidding. But definitely I was about to be a PhD. candidate ;).
Implementation of a simulation platform for BCM with xPC target
Virtual BCM and working scene in Unity3D.
Today, applications of HiL (Hardware in the Loop) have been proven indispensable for its low cost and good real-time performance. However, video monitoring system also need be imported for monitoring work process to achieve the goal of supervising work state, especially in large railway maintenance machines. In this paper, we build a cost-effective and convenient platform TP-RT (Three-Party Real-Time) with three main parts: a xPC Target PC, an operation interface in C#, and a real-time dynamic 3D model display designed by a game engine Unity. All connections are built on Ethernet interfaces. By using packet sniffer Wireshark, we prove TP-RT's high realtime performance in particular protocols. This platform has been implemented in a Ballast Cleaning Machine (BCM).
Online Real-Time Estimation of Response Time for Periodic Messages in Controller Area Networks
The CAN system model used in this paper.
The Controller Area Networks (CAN) are widely used in industrial Networked Control Systems (NCSs), such as construction machineries, hybrid vehicles, robotics, and other applications. The message response time (MRT) or communication delay is the main issue to degrade the performance of CAN-based NCSs since its exact value is time-varying and unpredictable. The online acquisition of exact MRT can be quite helpful for the delay compensation of NCSs. However, since the clocks on different nodes are asynchronous, the MRT acquisition in CAN is a challenging work. The current delay acquisition methods for asynchronous systems are not suitable for the delay compensation in CAN-based NCSs because they either increase the bus load of CAN or cannot acquire the exact MRT in real time. In this paper, we propose a novel online real-time MRT estimation method for periodic CAN messages based on the analysis of message traces on CAN bus. The proposed method can estimate the exact MRT of the received message instance in real time without increasing the bus load and can be conveniently embedded into the CAN nodes without requiring additional equipment. In order to validate the proposed method, practical experiments are carried out and the experimental results show that the proposed method can effectively estimate the exact MRT of periodic CAN messages.
Well, I just heard you ask, "Why are you not going to get a PhD.?"
Though I think putting an intense time period into research is amazing, from my previous experiences of pulishing papers, I have put more efforts in editing the article itself than directly creating and making something new. That makes me not enjoyable as I thought before. So I changed my mind to something much more interesting to me.
It's my multidisplinary experiences that let me think my life through and find it finally.
"What is it?" You asked again.