Wireless HART stack using multiprocessor technique with laxity algorithm
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TL;DR: The use of a real-time operating system is required for the demarcation of industrial wireless sensor network (IWSN) stacks (RTOS) stacks and the LPC2148 serves as a standard data collection node to which sensors are attached.
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Abstract: The use of a real-time operating system is required for the demarcation of industrial wireless sensor network (IWSN) stacks (RTOS). In the industrial world, a vast number of sensors are utilised to gather various types of data. The data gathered by the sensors cannot be prioritised ahead of time. Because all of the information is equally essential. As a result, a protocol stack is employed to guarantee that data is acquired and processed fairly. In IWSN, the protocol stack is implemented using RTOS. The data collected from IWSN sensor nodes is processed using non-preemptive scheduling and the protocol stack, and then sent in parallel to the IWSN's central controller. The real-time operating system (RTOS) is a process that occurs between hardware and software. Packets must be sent at a certain time. It's possible that some packets may collide during transmission. We're going to undertake this project to get around this collision. As a prototype, this project is divided into two parts. The first uses RTOS and the LPC2148 as a master node, while the second serves as a standard data collection node to which sensors are attached. Any controller may be used in the second part, depending on the situation. Wireless HART allows two nodes to communicate with each other.
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References
WirelessHART: Applying Wireless Technology in Real-Time Industrial Process Control
Jianping Song,Song Han,Aloysius K. Mok,Deji Chen,M. Lucas,Mark S. Nixon +5 more
- 22 Apr 2008
TL;DR: An introduction to the architecture of WirelessHART is given and several challenges the implementation team had to tackle during the implementation are described, such as the design of the timer, network wide synchronization, communication security, reliable mesh networking, and the central network manager.
Future research challenges in wireless sensor and actuator networks targeting industrial automation
Johan Akerberg,Mikael Gidlund,Mats Björkman +2 more
- 26 Jul 2011
TL;DR: The major issues that need to be addressed are safety, security and availability before industrial wireless sensor networks will be adopted in full scale in process automation.
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•Proceedings Article
EmStar: a software environment for developing and deploying wireless sensor networks
Lewis Girod,Jeremy Elson,Alberto E. Cerpa,Thanos Stathopoulos,Nithya Ramanathan,Deborah Estrin +5 more
- 27 Jun 2004
TL;DR: The EmStar project as discussed by the authors is a software environment for developing and deploying complex WSN applications on networks of 32-bit embedded Microserver platforms, and integrating with networks of Motes.
DIFS: a distributed index for features in sensor networks
Ben Greenstein,Deborah Estrin,Ramesh Govindan,Sylvia Ratnasamy,Scott Shenker +4 more
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TL;DR: This work considers searches over semantically rich high-level events, and presents the design, analysis, and numerical simulations of a spatially distributed index that provides for efficient index construction and range searches.
When HART goes wireless: Understanding and implementing the WirelessHART standard
A.N. Kim,F. Hekland,Stig Petersen,P. Doyle +3 more
- 03 Oct 2008
TL;DR: This paper focuses on issues relating to realization of the medium access layer and the network manager, which are essential in creating a successful WirelessHART network for specific applications.