Wireless sensors networks are used in a variety of environments ranging from environment monitoring such as humidity and temperature, to environments like patient monitoring, habitat monitoring etc. Sometimes sensors are deployed in inaccessible or hazardous places, and they are battery operated; recharging or changing the sensor’s battery is almost impossible. In such scenarios, where the battery can not be recharged or changed, it is crucial to know in advance how long the battery will last so that the old sensor node can be replaced by a new one. Normally, in order to effectively utilize the battery the components of a wireless sensor node are turned off when not needed. This paper presents an in-depth analysis of the importance of switching sensor node components, and its impact on the life time prediction. A new energy model is presented which caters for the current and time consumed in switching from one mode to another. A comparison is made between scenarios where current consumption while switching is catered with the one where it is not catered. This was achieved by using on chip fuel gauge, with some limitation, which was verified by using digital multimeter.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:hh-2615 |
| Date | January 2009 |
| Creators | Wahab, Junaid, Ali, Zubair |
| Publisher | Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Högskolan i Halmstad/Sektionen för Informationsvetenskap, Data- och Elektroteknik (IDE) |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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