Does Wireless Sensor Network Scale? A Measurement Study on GreenOrbs

Liu, Yunhao; He, Yuan; Li, Mo; Wang, Jiliang; Liu, Kebin; Li, Xiangyang

doi:10.1109/tpds.2012.216

Cited by 214 publications

(125 citation statements)

References 30 publications

(28 reference statements)

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“…Jelicic V. et al [5] pointed out that the hardware of the node is generally welded on the printed circuit board by the basic structure of the sensor, the central processor, the data memory, the radio frequency component and the power supply unit. Liu Y. et al [6] pointed out that the selection of these devices can determine the performance, power and life of the nodes. The computing power of the node is determined by the core processor.…”

Section: State Of the Artmentioning

confidence: 99%

Mechanical Vibration Monitoring System Based on Wireless Sensor Network

Hongjuan¹,

Xu²,

Xu³

2018

Int. J. Onl. Eng.

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Abstract-In order to solve the problem of mechanical vibration monitoring, a mechanical vibration monitoring system based on wireless sensor network was designed. First, the requirements of the hardware of the wireless rotating mechanical vibration monitoring system were analyzed. The monitoring node and base station node were designed. Then, based on the VisualBasic6.0 development tool, a software for monitoring the vibration of rotating machinery was designed. It had the functions of command control, data waveform display, and network topology display. In the mode of wireless mechanical vibration monitoring, the organization mode of the network, the transmission mode of data and the corresponding packet transmission format were improved. Finally, the reliable transmission of the data was verified. Compared with the traditional cable vibration sensor, the performance of the monitoring system was verified. The results showed that the wireless vibration monitoring system designed in this paper met the requirements for the monitoring of the vibration state of the rotating machinery. Keywords-wireless sensor networks, mechanical vibration monitoring, rotating machinery vibration IntroductionWith the development of science and technology, modern industrial equipment has been upgraded, serialized, refined and automated. This has made outstanding contributions to reducing product cost, protecting environmental energy and improving economic efficiency. At the same time, it puts forward higher requirements for the maintainability of rotating machinery. If a large equipment fails, it will have an impact on the whole production line or even the whole factory, and the economic loss is immeasurable. In order to reduce the impact caused by mechanical faults, more and more members of staff began to study the wired monitoring technology for the vibration of rotating machinery. At present, many wire monitoring equipment for rotating machinery vibration has been successfully developed and adopted by modern industries. With years of experiments and improvements, it can basically meet the monitoring needs of the operating conditions of rotating machinery and equipment in a simple environment. Wired connections have the advantage of simultaneous real-time trans- 126

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Section: State Of the Artmentioning

confidence: 99%

Mechanical Vibration Monitoring System Based on Wireless Sensor Network

Hongjuan¹,

Xu²,

Xu³

2018

Int. J. Onl. Eng.

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“…15. 4 protocol and the Internet based on IPv6 protocol, that is to say, to realize IP orientation of the underlying network, so as to provide real-time and reliable network protocol guarantee for the future large-scale application of Internet of things. However, there are some technical challenges in the field of addressing based on 6LoWPAN heterogeneous network [1][2][3].…”

Section: Overviewmentioning

confidence: 99%

“…15. 4 protocol and the Internet based on the IPv6 protocol. The adaptation layer introduced between the network layer and the data link layer mainly completes the following functions in the access process: (1) for the efficient transmission, perform fragmentation and reassembly of IPv6 data packet; (2) the network address automatic configuration; (3) to reduce IPv6 expenses, carry out header compression for the IPv6 group; (4) efficient routing algorithm.…”

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confidence: 99%

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An Internet of Things Wireless Sensor Network Data Exchange Model Based on Hierarchical Address Automatic Configuration and Header Compression Encoding Strategy

Yuan-kun

2017

Int. J. Onl. Eng.

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Abstract-To explore the wireless sensor network data exchange model, an addressing strategy is applied to the Internet of Things, and the real-time communication between the underlying wireless sensor network and the Internet based on the IEEE 802.15.4 protocol is realized. In addition, Hierarchical address auto configuration strategy is adopted. First of all, inside the bottom network, it allows nodes to use link local address derived by 16-bit short address for data packet transmission. Secondly, Sink node in each underlying network accesses to the global routing prefix through the upper IP router, and combined with interface identifier, it forms Sink node global address, and realizes wireless sensor network and Internet data exchange. The research results show that the strategy has certain superiority in network cost, throughput, energy consumption and other performances. In summary, the proposed addressing strategy has the characteristics of effectively integrating heterogeneous networks, reducing system energy consumption, increasing network throughput and ensuring realtime system performance for the future Internet of things. Keywords-address automatic configuration, header compression, network data IntroductionThe International Telecommunication Union identifies the key technologies of the Internet of things, such as radio frequency identification technology, sensor technology, nano technology and intelligent embedded technology. At present, one of the key problems to be solved in the Internet of things is the integration of the underlying heterogeneous network and the Internet. IEEE 802.15.4 communication protocol is short distance wireless communication standard, and compared with Bluetooth technology, it is more suitable for the communication among underlying wireless sensor network devices. IPV6 is the leading technology in the next generation Internet network layer, which has a larger advantage in the address space, message format, and security. However, before the advent of 6LoWPAN technology, it is almost impossi-140

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“…Some researchers have voiced concerns that the IoT setup pushes the envelope of scalability to an extent that discourages the use of multihop networking [2]. This may have been motivated by the fact that the routing and medium access protocols overhead builds up quite rapidly as the network grows in scale [11]. This is particularly true for dynamic networks whose topologies undergo frequent changes due to mobility and/or uncoordinated sleep schedules [12].…”

Section: A Motivationmentioning

confidence: 99%