Department of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg 2195, South Africa.
Sensors (Basel). 2018 Jul 16;18(7):2304. doi: 10.3390/s18072304.
The advent of wireless sensor networks (WSN) has opened up an array of applications. Due to the ad-hoc nature of WSN and the small size of wireless nodes, multiple system configurations are possible. In order to collect data from WSN, some systems utilize static nodes with a network setup that consists of multiple relays to facilitate the dissemination of data to a gateway. Other WSN architectures consist of a mixture of static and mobile nodes. Mobile nodes are able to collect data from the WSN when in close proximity to a static node. Such nodes are referred to as data mules. Data mules presents multiple advantages including the improvement of the network life as communication usually takes place via a single hop. In order to collect smart meter data, we propose the usage of mini-bus taxis carrying a data collector node as an alternative to traditional GSM models where data collected is directly uploaded from a data concentrator to a server. Using the vast network of mini-bus taxis in South Africa, data collection in areas lacking GSM network will be possible. This paper will attempt to present all the relevant parameters required for such data collection scheme to be successful.
无线传感器网络 (WSN) 的出现开辟了一系列应用。由于 WSN 的自组织性质和无线节点的小型化，因此存在多种系统配置。为了从 WSN 中收集数据，一些系统利用具有网络设置的静态节点，该网络设置由多个中继器组成，以促进将数据分发到网关。其他 WSN 架构由静态和移动节点的混合组成。当移动节点接近静态节点时，它能够从 WSN 中收集数据。这样的节点被称为数据骡。数据骡具有多个优势，包括通过单跳通信来提高网络寿命。为了收集智能电表数据，我们建议使用载有数据收集器节点的小型巴士出租车作为传统 GSM 模型的替代方案，其中从数据集中直接将数据上传到服务器。利用南非庞大的小型巴士出租车网络，可以在缺乏 GSM 网络的地区进行数据收集。本文将尝试提出成功实施此类数据收集方案所需的所有相关参数。
