Research on a Kind of Ubiquitous Power Internet of Things System for Strong Smart Power Grid

Experimental and Case studies of Longdistance Multi-hopping Data Transmission Techniques for Wildfire Sensors Using the LoRa-Based Mesh Sensor Network

“…In Thailand, particularly, cities in remote areas are different from the cities which Lee's propagation model designs will not have a correlation value for Lee's simulation model. When managing the signal transmission between 100 to 1,500 MHz in urban area in the evident form of Okumura-Hata (O-H) model [3] is particularly developed for the wireless system which can be used to communicate in the environment by the path loss LP can be assessed as equation ( 2) [4]. By knowing that operating frequency (f) which is the MHz high of the transmitter and the receiver: hT and hR showing its unit in meter and the distance between the transmitter and the receiver showing its unit in kilometer by the correction parameter occurs from the area type and considers its value from equation (3) [4].…”

Cognitive Modeling and Formation of the Knowledge Base of the Information System for Assessing the Rating of Enterprises

“…In the past, some kinds of technology could not respond to the use of long-distance data. Consequently, technology of Wireless Internet of Things (WIoT) [3] can send data in a long distance for many kilometers and consume low power such as technology of LoRa, LoRaWAN, SigFox and technology of NB-IoT [4] [5]. However, LoRa Technology is a popular one as the reasons mentioned earlier.…”