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An energy-efficient underground localization system based on heterogeneous wireless networks.

Yuan Y, Chen C, Guan X, Yang Q - Sensors (Basel) (2015)

Bottom Line: A precision positioning system with energy efficiency is of great necessity for guaranteeing personnel safety in underground mines.In this paper, an underground localization system is designed to enable the adaptation to kinds of harsh tunnel environments, but also to reduce the energy consumption and thus prolong the lifetime of the network.The simulation study and experimental results show the effectiveness of the proposed algorithms and the implementation.

View Article: PubMed Central - PubMed

Affiliation: School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, 800 Dongchuan RD. Minhang District, Shanghai 201100, China. yazhouyuan@sjtu.edu.cn.

ABSTRACT
A precision positioning system with energy efficiency is of great necessity for guaranteeing personnel safety in underground mines. The location information of the miners' should be transmitted to the control center timely and reliably; therefore, a heterogeneous network with the backbone based on high speed Industrial Ethernet is deployed. Since the mobile wireless nodes are working in an irregular tunnel, a specific wireless propagation model cannot fit all situations. In this paper, an underground localization system is designed to enable the adaptation to kinds of harsh tunnel environments, but also to reduce the energy consumption and thus prolong the lifetime of the network. Three key techniques are developed and implemented to improve the system performance, including a step counting algorithm with accelerometers, a power control algorithm and an adaptive packets scheduling scheme. The simulation study and experimental results show the effectiveness of the proposed algorithms and the implementation.

No MeSH data available.


Related in: MedlinePlus

Schematic view of the physical layer protocol data unit (PPDU).
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f9-sensors-15-12358: Schematic view of the physical layer protocol data unit (PPDU).

Mentions: According to the configuration of NA5TR1, each physical layer protocol data unit (PPDU) consists of four frame fields: a preamble, a sync word, a MAC frame and a tail [22], as illustrated in Figure 9. In order to simplify the analysis, we take the typical data packet as a reference. Assuming that all of the frames have the same length, and each packet contains five bytes of data, the total length of each frame is (30 + 64 + 144 + 5 × 8 + 4) bits, that is 35.25 octets. Therefore, the time taken by transmitting or receiving a packet via air interface is Ttrans = 35.25 × TSU(32 us) = 1.128 ms.


An energy-efficient underground localization system based on heterogeneous wireless networks.

Yuan Y, Chen C, Guan X, Yang Q - Sensors (Basel) (2015)

Schematic view of the physical layer protocol data unit (PPDU).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507700&req=5

f9-sensors-15-12358: Schematic view of the physical layer protocol data unit (PPDU).
Mentions: According to the configuration of NA5TR1, each physical layer protocol data unit (PPDU) consists of four frame fields: a preamble, a sync word, a MAC frame and a tail [22], as illustrated in Figure 9. In order to simplify the analysis, we take the typical data packet as a reference. Assuming that all of the frames have the same length, and each packet contains five bytes of data, the total length of each frame is (30 + 64 + 144 + 5 × 8 + 4) bits, that is 35.25 octets. Therefore, the time taken by transmitting or receiving a packet via air interface is Ttrans = 35.25 × TSU(32 us) = 1.128 ms.

Bottom Line: A precision positioning system with energy efficiency is of great necessity for guaranteeing personnel safety in underground mines.In this paper, an underground localization system is designed to enable the adaptation to kinds of harsh tunnel environments, but also to reduce the energy consumption and thus prolong the lifetime of the network.The simulation study and experimental results show the effectiveness of the proposed algorithms and the implementation.

View Article: PubMed Central - PubMed

Affiliation: School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, 800 Dongchuan RD. Minhang District, Shanghai 201100, China. yazhouyuan@sjtu.edu.cn.

ABSTRACT
A precision positioning system with energy efficiency is of great necessity for guaranteeing personnel safety in underground mines. The location information of the miners' should be transmitted to the control center timely and reliably; therefore, a heterogeneous network with the backbone based on high speed Industrial Ethernet is deployed. Since the mobile wireless nodes are working in an irregular tunnel, a specific wireless propagation model cannot fit all situations. In this paper, an underground localization system is designed to enable the adaptation to kinds of harsh tunnel environments, but also to reduce the energy consumption and thus prolong the lifetime of the network. Three key techniques are developed and implemented to improve the system performance, including a step counting algorithm with accelerometers, a power control algorithm and an adaptive packets scheduling scheme. The simulation study and experimental results show the effectiveness of the proposed algorithms and the implementation.

No MeSH data available.


Related in: MedlinePlus