Time Synchronization Technique for GNSS Jamming Monitoring Network System

Author(s):  
Gwon gyu Jin ◽  
◽  
Young jin Song ◽  
Jong hoon Won
2013 ◽  
Vol 278-280 ◽  
pp. 689-692 ◽  
Author(s):  
Jin Jin Xu ◽  
Sheng Jun Su ◽  
Ming Hui Yuan

A SSNS (simple sensor network sniffer) is used to analyze and evaluate the Wireless Sensor Networks (WSN) effectively. SSNS is designed to monitor IEEE 802.15.4 protocol frame, which based on the Ethernet. Unlike the existed monitoring system, our design is much simpler and needs less resource. It is analyzed in this paper that the monitor network framework, time synchronization, and analysis program design. The results show that SSNS works stably, and can real-time display the frame monitored and reflect the dynamic change of WSN.


2012 ◽  
Vol 241-244 ◽  
pp. 908-911
Author(s):  
Ming Hui Yuan ◽  
Yan Qing Gong

A novel WSNS (wireless sensor network sniffer) is used to analyze and evaluate the Wireless Sensor Networks (WSN) effectively, which is designed to monitor IEEE 802.15.4 protocol frame of the Ethernet. Unlike the existed monitoring system, this design has higher efficiency and needs less resource. It is analyzed in this paper that the monitor network framework, time synchronization, and analysis program design. The results show that WSNS can real time display the monitored frame and dynamic changes of WSN topology.


2013 ◽  
Vol 373-375 ◽  
pp. 743-751
Author(s):  
Wen Li ◽  
Xiao Mei Wang ◽  
Xue Ke Luo

In order to solve data lack of underground water research and monitoring situation, a wide range underground water lever dynamic information monitoring network system was designed. Remote monitoring terminal based on the techniques of embedded and wireless transmission monitored the change of underground water level; Monitoring analysis center based on the JAVA technology of B/S architecture was designed to inquiry the real-time data,set parameter and analyze data, etc. An approximate water level point was obtained by adopting the modified small period prediction model and the weight distribution method. This enhances reliability of monitored data. By utilizing the technology of GPRS wireless data transmission and Ethernet technology, a remote and real-time data transmission channel was build. Large area application in Shanxi Province shows that the system has the stable performance and the reasonable structure. System can provide long-term reliable data for underground water research.


2014 ◽  
Vol 722 ◽  
pp. 312-315
Author(s):  
Chun Hui Xu

The paper designed a safety monitoring network system which is composed of the wireless sensor network based on the emerging wireless communication technology.Tests indicate that the system runs well with small consumption and good mobility, and the data can be uploaded to host computer for real-time display and record so that it can provide effective help to quickly carry out rescue work.


2011 ◽  
Vol 58-60 ◽  
pp. 2320-2325
Author(s):  
Jian Jun Meng ◽  
Ru Xun Xu ◽  
Can Can Zhang ◽  
Jian Kai Gu

A safety network system is designed based on PROFIBUS-DP field bus, according to actual servicing work situation and control requirements for electric locomotive servicing work. The system realizes communication between first class master station and third equipment through using PROFIBUS-DP bus protocol. It also realizes interactive operation between slave station and non-contact IC card, meanwhile, slave station and MCU system. In addition, this article has analyzed the multi-task scheduling mechanism and data communication security on monitoring network system in detail as well. Results show that the system has higher application value through entire debugging and testing on network control system.


1993 ◽  
Vol 17 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Yukio Kurihara ◽  
Yasuhiro Kitazoe ◽  
Yuichi Narita ◽  
Yoshiyasu Okuhara ◽  
Takahiko Kubo ◽  
...  

2021 ◽  
Author(s):  
Wei Li ◽  
Han Wang ◽  
Jing Wu ◽  
Baocheng Yu ◽  
Wenxia Xu ◽  
...  

2007 ◽  
Vol 49 (1) ◽  
pp. 63-76 ◽  
Author(s):  
Toshihiko Nagai ◽  
Teruyuki Kato ◽  
Nobuo Moritani ◽  
Hiroaki Izumi ◽  
Yukihiro Terada ◽  
...  

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