Energy-Saving Wireless Sensor Node for Relative Positioning of Densely Deployed GPS Network
| Autor: | Michela Basili, Steven D. Glaser, Kenji Oguni, Berta Buttarazzi, Masayuki Saeki, Ichidai Nakamura |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Precision Lightweight GPS Receiver
Engineering Brooks–Iyengar algorithm GPS tracking server Global positioning system (GPS) Sensors Networks Energy consumption Earthquakes Sensors business.industry Global positioning system (GPS) Real-time computing global positioning system (GPS) sensors networks energy consumption earthquakes Energy consumption Key distribution in wireless sensor networks Sensor node Assisted GPS Physics::Space Physics Earthquakes Computer Science::Networking and Internet Architecture Mobile wireless sensor network Networks Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni business Computer Science::Operating Systems Wireless sensor network Civil and Structural Engineering |
| Popis: | Localization of sensor nodes is one of the most essential tasks for sensor network applications for infrastructure monitoring. Normally, the accuracy of global positioning system (GPS) positioning installed in wireless sensor network is in the order of meters (which is insufficient for infrastructure monitoring). This paper developed a GPS wireless sensor network with a capability of onboard GPS analysis based on a relative positioning algorithm with the accuracy in the order of centimeters. However, employment of a high-performance and energy-hungry CPU is inevitable for this onboard GPS analysis method. To reduce the energy consumption, a sensor node called hybrid sensor node equipped with dual CPUs has been developed. A high-performance CPU on the hybrid sensor node is used only for onboard GPS analysis and another CPU with low energy consumption is used for other tasks such as controling of a GPS receiver and a wireless transceiver. This paper describes the design concept, the hardware, and th... |
| Databáze: | OpenAIRE |
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