Sensors, Free Full-Text
Descrição
Wireless Underground Sensor Networks (WUSNs) that collect geospatial in situ sensor data are a backbone of internet-of-things (IoT) applications for agriculture and terrestrial ecology. In this paper, we first show how WUSNs can operate reliably under field conditions year-round and at the same time be used for determining and mapping soil conditions from the buried sensor nodes. We demonstrate the design and deployment of a 23-node WUSN installed at an agricultural field site that covers an area with a 530 m radius. The WUSN has continuously operated since September 2019, enabling real-time monitoring of soil volumetric water content (VWC), soil temperature (ST), and soil electrical conductivity. Secondly, we present data collected over a nine-month period across three seasons. We evaluate the performance of a deep learning algorithm in predicting soil VWC using various combinations of the received signal strength (RSSI) from each buried wireless node, above-ground pathloss, the distance between wireless node and receive antenna (D), ST, air temperature (AT), relative humidity (RH), and precipitation as input parameters to the model. The AT, RH, and precipitation were obtained from a nearby weather station. We find that a model with RSSI, D, AT, ST, and RH as inputs was able to predict soil VWC with an R2 of 0.82 for test datasets, with a Root Mean Square Error of ±0.012 (m3/m3). Hence, a combination of deep learning and other easily available soil and climatic parameters can be a viable candidate for replacing expensive soil VWC sensors in WUSNs.
Home, FreeStyle Libre
TEKSCAN Pressure Mapping / Force Measurement / Tactile Sensor 3000
Analysis & Sensing - Chemistry Europe - Wiley Online Library
BOSCH Professional GIS 1000 C Thermo Bluetooth Thermal Camera
Best Buy: GE CYNC Smart Wire-Free Motion Sensor White 93105005
Advanced Materials: Early View
graphic design - Clip Art Library
Air Intake Pressure Sensor MAP Sensor 079800-4250 37830-PAA-S00
Journal of The Electrochemical Society - IOPscience
YoLink Smart Outdoor Motion Detector, Trespassing Alarm, Driveway
Sensors, Free Full-Text
Hevc Reference Software Svn - Colaboratory
buy Bosch Fuel Pressure Sensor 0261230093 3F2Z9G756AA for Ford E
Ambient Weather WS-2000 Smart Weather Station
de
por adulto (o preço varia de acordo com o tamanho do grupo)