In-Pipe Wireless Communication for Underground Sampling and Testing
In-Pipe Wireless Communication for Underground Sampling and Testing
复制标题
用于地下采样和测试的管道内无线通信
DOI：
10.1109/glocom.2017.8254524
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
P. Havinga
中科院分区：
文献类型：
--
作者：
N. D. Nguyen;D. V. Le;N. Meratnia;P. Havinga
在本文中，我们提出了一个有效的和低成本的无线通信系统，非常长和狭窄的管道，可以重播现有的有线系统在地下传感器网络的应用，如土壤采样和测试与锥贯入试验（CPT），最广泛使用的地下传感器设备。与现有的管内无线技术不同，我们考虑的是非常窄和长的真实世界的管道。特别地，在我们的设计中，数据首先以商用频率调制，然后转换为14-15 GHz之间的高频，以在圆形波导模式TM 01下沿管道沿着传输。特别地，我们设计了一个锥形天线来克服发射机和接收机之间的馈电对准问题。为了评估我们的设计的适用性和效率，我们进行逼真的模拟以及实验与真实的原型。实验结果与我们的理论设计和模拟一致，并表明我们提出的无线系统可以传输传感数据到20米，在狭窄的CPT管道直径为17毫米时，使用LoRa调制与发射功率为1 W，而现有的地下无线电技术可以传输数据从2米的深度在相同的条件下最大。在我们的方法中，还可以在需要时添加中继器以扩展通信范围。
In this paper, we present an effective and low- cost wireless communication system for extremely long and narrow pipes that can replay the extant wire system in underground sensor network applications such as soil sampling and testing with the Cone Penetration Test (CPT), the most widely used underground sensor device. Different from existing in-pipe wireless techniques, we consider real-world pipelines that are very narrow and long. In particular, in our design data are first modulated at a commercial frequency and then converted to high frequency, between 14-15 GHz, to be transmitted along of the pipelines under the circular waveguide mode TM01. Especially, we design a cone-shaped antenna to overcome the aligning problem of feeds between the transmitter and receiver. To evaluate the applicability and efficiency of our design, we conduct realistic simulations as well as experiments with real prototypes. The results of experiments are consistent with our theoretical design and simulations and show that our proposed wireless system can transfer sensory data up to 20 m in narrow CPT pipes with a diameter of 17 mm when using the LoRa modulation with a transmitting power of 1 W, whereas existing underground radio techniques can transfer data from a depth of 2 m at maximum in the same condition. In our approach, it is also possible to add repeaters to extend the communication range when needed.