Application Research Based on FlexRay Bus for All-Electronic Computer Interlocking System of Railway Signal

2013 ◽  
Vol 671-674 ◽  
pp. 3179-3184
Author(s):  
Guang Wu Chen ◽  
Ju Hua Yang ◽  
Feng Zhang
Keyword(s):  
Topological Structure ◽  
Can Bus ◽  
Electronic Computer ◽  
Data Communication ◽  
Reliable Data ◽  
Application Research ◽  
System Communication ◽  
Railway Signal ◽  
Fail Safe ◽  
Computer Interlocking

This paper researches the FlexRay bus main features, communication mechanism and topological structure, and then applies the FlexRay bus to all-electronic computer interlocking system communication network structure. Considering the fail-safe principle ,The paper studies the node design and bus configuration based on all-electronic execution units core , It realizes safe and reliable data communication between the all-electronic execution units and the interlocking machine, the maintenance monitoring machine. At last with real-time comparision between the FlexRay bus and the CAN bus in all-electronic computer interlocking system. it indicates that the FlexRay bus meets the data communication requirements in the computer interlocking system.

Research of RAM on the All-Electronic Computer Interlocking System

2014 ◽  
Vol 511-512 ◽  
pp. 719-726 ◽  
Author(s):  
Tao He ◽  
Jian Xin Ren
Keyword(s):  
Markov Model ◽  
Electronic Computer ◽  
Signal Systems ◽  
High Security ◽  
Railway Signal ◽  
Computer Based ◽  
Reliability Methods ◽  
Basic Characteristics ◽  
Single Configuration ◽  
Computer Interlocking

High levels of reliability and high security are the basic characteristics and requirements of railway signal systems. So, reliability, availability and maintainability (RAM) are necessarily analyzed before the computer interlocking system will be adopted. The All-electronic Computer Interlocking System, which is a new kind of interlocking system, still needs to analyze its RAM before being put to use. In this paper, the reliability methods and Markov model are adopted to analyze the RAM indexes of the All-electronic Computer Interlocking System when its execution layer equipped with the single configuration or the dual-redundant configuration, the paper also compares the indexes with that of the traditional computer-based interlocking system. Finally, the paper will briefly include suggestions on how the All-electronic Computer Interlocking System’s RAM indexes may be increased and also, how the system may be used practically.

Remote Multi-Processor Updating System Based on In-System Programming and CAN-Bus

2013 ◽  
Vol 364 ◽  
pp. 419-423 ◽  
Author(s):  
Sheng Bo Qi ◽  
Meng Zhang ◽  
Zhen Hao Wang
Keyword(s):  
Can Bus ◽  
Data Communication ◽  
Host Computer ◽  
Electrical Transmission ◽  
Tidal Current Energy ◽  
Data Channel ◽  
Master Controller ◽  
Shore Station ◽  
Retransmission Mechanism ◽  
System Programming

The tidal current energy generation system, which works underwater and is interfered by electrical transmission during the process of data communication, has field update requirements but cannot directly use In-System Programming (ISP) to update, so a remote multi-processor updating system is developed based on ISP and CAN bus. This system consists of a shore station host computer, master controller and the slaves. The host computer transmits the HEX file to the master controller via CAN bus, and the master controller updates the appointed slave by ISP. This paper studies retransmission mechanism and ISP process. The system avoids failed update caused by data channel interference through separating the HEX file transmission and the ISP process.

The Research of Switch Control Module Based on Distributed Computer Interlocking System

2013 ◽  
Vol 433-435 ◽  
pp. 1452-1457
Author(s):  
Wen Zhen Kuang ◽  
You Jie Cao
Keyword(s):  
Distributed Control ◽  
Dual System ◽  
Control Module ◽  
Switch Control ◽  
Communication Module ◽  
Dual Module ◽  
Execution Unit ◽  
Fail Safe ◽  
Security Communication ◽  
Computer Interlocking

Distributed computer interlocking system moves the trackside execution unit of indoor close to the controlled device,it realizes the distributed control through the security communication module. The article describes overall structure of the system and four-wire switch control modules main functions in all modules as well as the hardware structure introduced. The control circuit of switch and the indication acquisition circuit are mainly analyzed. In order to improve the reliability of system,the module uses the working pattern of dual system hot spare . In this paper,operating principle of dual system hot spare and hot standby switching circuit have been mainly illustrated and described Key words: Switch control module; Fail-safe; Dual module hot spare; Computer interlocking system; Distributed control

scholarly journals Evaluation of Energy Consumption using Receiver–Centric MAC Protocol in Wireless Sensor Networks

2018 ◽  
Vol 8 (1) ◽  
pp. 87
Author(s):  
Ananda Kumar K S ◽  
Balakrishna R
Keyword(s):  
Energy Efficiency ◽  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Mac Protocol ◽  
Research Work ◽  
Data Communication ◽  
Reliable Data ◽  
Sensor Nodes ◽  
Wireless Sensor

At present day’s wireless sensor networks, obtain a lot consideration to researchers. Maximum number of sensor nodes are scattered that can communicate with all others. Reliable data communication and energy consumption are the mainly significant parameters that are required in wireless sensor networks. Many of MAC protocols have been planned to improve the efficiency more by enhancing the throughput and energy consumption. The majority of the presented medium access control protocols to only make available, reliable data delivery or energy efficiency does not offer together at the same time. In this research work the author proposes a novel approach based on Receiver Centric-MAC is implemented using NS2 simulator. Here, the author focuses on the following parametric measures like - energy consumption, reliability and bandwidth. RC-MAC provides high bandwidth without decreasing energy efficiency. The results show that 0.12% of less energy consumption, reliability improved by 20.86% and bandwidth increased by 27.32% of RC-MAC compared with MAC IEEE 802.11.

Design and debugging of communication between controller and Kingview based on CAN bus

2013 ◽  
Vol 10 (4) ◽  
pp. 395-400
Author(s):  
G. Wang ◽  
X. Luo
Keyword(s):  
Real Time ◽  
Network Structure ◽  
Communication Protocol ◽  
Can Bus ◽  
Data Communication ◽  
Good Reliability ◽  
Whole Process ◽  
Process Testing

By selecting hardware, erecting CAN network structure and adopting appropriate software and standard communication protocol to debug the system, the system realizes the data communication between controller and Kingview based on CAN bus. At the same time?with the detailed description of the debugging process and the validation of debugging results, the system realizes the monitor to controller by programming computer through CAN bus and the CAN data have been in a state of monitoring in the whole process. Testing results show that the system has good reliability, real-time and practicality, and shows the advantages of CAN bus.

The Design of CAN/USB Embedded Adapter

2011 ◽  
Vol 130-134 ◽  
pp. 3938-3941
Author(s):  
Yong Gang Luo
Keyword(s):  
Real Time ◽  
High Speed ◽  
High Efficiency ◽  
Can Bus ◽  
Low Cost ◽  
Data Communication ◽  
Usb Interface ◽  
Usb Bus ◽  
Interface Device

In order to realize high-speed and real-time communications between canbus and usb bus, a can/usb embedded adapter is designed in this paper. The hardware of the system consists mainly of AT89S51 as the local processor and PDIUSBD12 as the USB interface device, the sja1000 as the canbus interface device. Data communication is operated by the firmware and drivers. Adapter completely satisfies the needs of the CAN bus with its highest speed of 1Mps and it will be widely used in future for its high efficiency and low cost.

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