干旱区生态环境知识资源中心(Arid): Development of a Low-Cost Multi-Depth Real-Time Soil Moisture Sensor Using Time Division Multiplexing Approach

Arid

DOI	10.1109/ACCESS.2019.2893680
	Development of a Low-Cost Multi-Depth Real-Time Soil Moisture Sensor Using Time Division Multiplexing Approach
	Saeed, Iftikhar Ahmed 1,2; Shi Qinglan 1,2; Wang, Minjuan 1,2; Butt, Salman Latif 3; Zheng, Lihua 2; Vu Ngoc Tuan 1,2; Gao Wanlin 1,2
通讯作者	Shi Qinglan ; Gao Wanlin
来源期刊	IEEE ACCESS
ISSN	2169-3536
出版年	2019
卷号	7 页码:19688-19697
英文摘要	Soil moisture (SM) is an integral parameter for scheduling irrigation. The precise and real-time measurement of SM is difficult due to its complex nature. The purpose of this paper was to determine whether the time division multiplexing (TDM) approach would effectively estimate SM content. We developed a sensor to detect SM from four soil depths (10, 20, 40, and 60 cm) simultaneously by using the TDM technique. This is a type of EM sensor that indirectly estimates the SM on the basis of the dielectric properties of soil. Three types of soil samples were used to calibrate the sensor. The calibration models were established using polynomial (3rd order) fitting equations. The performance of the sensor was evaluated both in the laboratory and in situ conditions. The sensitivity of the sensor was examined in a micro-control irrigation system. The sensor measured SM contents in a soil box were compared with HYDRUS-2D simulated wetting patterns. The results were in the optimal range, and the coefficient of determination (R-2) ranged from 0.97 to 0.99 and root means square error (RMSE) from 0.72 to 2.01. The IDM detection circuit-based sensor R-2 value was 0.97, and its RMSE was 2.78. Whereas the independent detection circuit R-2 values ranged from 0.93 to 0.96 and RMSE from 4.09 to 5.07. The results determined that the sensor could be used for continuous SM measurements, which would be advantageous for planning the irrigation practices in arid and irrigated regions.
英文关键词	Dielectric sensor multi-depth micro-control irrigation soil moisture time division multiplexing
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000459700600001
WOS关键词	IMPROVED CAPACITANCE TECHNIQUE ; WATER-CONTENT ; FIELD-MEASUREMENTS ; IRRIGATION ; PERFORMANCE ; CALIBRATION ; SIMULATION ; CONDUCTIVITY ; MANAGEMENT ; PROFILES
WOS类目	Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS研究方向	Computer Science ; Engineering ; Telecommunications
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216235
作者单位	1.Minist Agr & Rural Affairs, Key Lab Agr Informatizat Standardizat, Beijing 100083, Peoples R China; 2.China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China; 3.Univ Georgia, Coll Vet Med, Dept Pathol, Athens, GA 30602 USA
推荐引用方式 GB/T 7714	Saeed, Iftikhar Ahmed,Shi Qinglan,Wang, Minjuan,et al. Development of a Low-Cost Multi-Depth Real-Time Soil Moisture Sensor Using Time Division Multiplexing Approach[J]. 中国农业大学,2019,7:19688-19697.
APA	Saeed, Iftikhar Ahmed.,Shi Qinglan.,Wang, Minjuan.,Butt, Salman Latif.,Zheng, Lihua.,...&Gao Wanlin.(2019).Development of a Low-Cost Multi-Depth Real-Time Soil Moisture Sensor Using Time Division Multiplexing Approach.IEEE ACCESS,7,19688-19697.
MLA	Saeed, Iftikhar Ahmed,et al."Development of a Low-Cost Multi-Depth Real-Time Soil Moisture Sensor Using Time Division Multiplexing Approach".IEEE ACCESS 7(2019):19688-19697.