| 1. |
- Byamukama, Maximus, et al.
(author)
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Design Guidelines for Ultra-low Power Gateways in Environment Monitoring Wireless Sensor Networks
- 2017
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In: 2017 IEEE AFRICON. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781538627754 ; , s. 1472-1478
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Conference paper (peer-reviewed)abstract
- We explore techniques that can be used to reduce the power consumption of gateways in wireless sensor networks deployed in environment monitoring applications, such as Automatic Weather Stations (AWS). The challenge is the deployment of these networks in locations that are far from a consistent power source, such as a national grid. Such stations must be autonomous and power consumption must be minimized. We present test scenarios illustrating the impact of the suggested techniques. We explore hardware and software based methods of power reduction, assess the impact of each, the constraints to be expected and how to overcome them. We then provide a reference implementation of a gateway in which we integrate these techniques. We show that power consumption can be reduced by 48 - 85% when comparing best and worst case scenarios. The reference implementation we provide consumes 27mW at 3V.
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| 2. |
- Lennvall, Tomas, et al.
(author)
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Challenges when bringing IoT into industrial automation
- 2017
-
In: 2017 IEEE AFRICON. - : IEEE. - 9781538627754 ; , s. 905-910
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Conference paper (peer-reviewed)abstract
- The Internet of Things (IoT) is captivating the society because of its potential to rapidly transform businesses and people's lives. It is widely believed that IoT will also transform the industrial automation business in terms of improved productivity, less cost, flexibility, and increased revenues. Hence, there are some challenges that needs to be addressed when IoT is introduced to the industrial automation domain. This paper aims to present realistic requirements and highlights identified challenges such as security, interoperability, deterministic and low latency communication, and how the required availability (uptime) can be kept. Moreover, the paper also point out the need of standardization and sustainable business models. The conclusion is that introducing IoT devices and connecting them directly to cloud services is not straightforward for process automation.
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