Developing mobile application platforms and IoT technology in agriculture

The Internet of Things (IoT) is growing rapidly around the world . According to market research firm Statista, by the end of 2020, there were an estimated 20 billion IoT devices worldwide, and 127 more devices were connected to the Internet every second. The company estimates that the world will have 75 billion Internet-connected devices by 2025.

This fact made the group of authors including Huynh Quy Khang, Nguyen Dai Nghia, Tu Huu Duc, Duong Nhat Duy, Duong Nhat Truong have the idea of building an open integration platform called "Smart garden management integration model". "The new point is that the group proposed a solution to arrange and store information of some types of sensors, data is stored according to the SensorThings standard (OGC Standard). Optimize the data transmission protocol between sensors and mobile applications in real conditions. Combine LoRa and Wifi data transmission protocols to optimize data transmission. Build a mobile software architecture that combines reactive programming style and imperative programming style", Nguyen Dai Nghia, representative of the group of authors shared.

Talking about SensorThings API (OGC Standard), Nguyen Dai Nghia said, Sensing: Provides standards for managing and retrieving environmental parameters and sensor information from IoT systems, while Tasking performs the task of providing work plans for actuators. OGC SensorThings API brings benefits such as: enabling the growth of new high-value services with lower development costs and wider reach; reducing risks, time and costs across the entire design cycle of IoT products as well as simplifying connections between devices-to-devices and devices-to-applications.

About LoRa & WiFi wireless sensor networks, WiFi (Wireless fidelity) is a family of wireless networking protocols, based on the IEEE 802.11 family of standards, commonly used to connect local area networks of devices and access the Internet, allowing nearby digital devices to exchange data using radio waves. However, the disadvantage of this technology is that it uses a lot of energy, the maximum coverage is only 100m and when there are many devices accessing it, it will slow down the bandwidth. LoRa is an abbreviation for the phrase long-range. This is an RF modulated technology for low-power wide area networks (LPWAN). The advantage of this technology is that it can transmit data up to about 5km in urban areas and from 10 to 15km in rural areas. However, the capacity of the transmitted data is low and cannot directly access the Internet.

The combined use of LoRa and WiFi technology aims to promote the advantages as well as overcome the disadvantages of both technologies. Creating a communication system with the following characteristics: Wide coverage area (

Through mobile applications, the result is to build a comprehensive IoT system. The hardware system uses sensors that integrate many different types of sensors. In particular, it promotes the development of mobile application platforms and IoT technology in agriculture in the 4.0 era; helping users manage their gardens scientifically and bring higher economic efficiency.

"Proposing an integrated model for smart garden management based on sensorthings API standards and lora technology" by the Can Tho University group of authors was evaluated as one of the four best reports at the 2nd Global Vietnamese Young Scientists Conference. It is known that in just 6 months of launching, the conference has attracted the attention of many students, young lecturers, and postgraduates from 16 provinces, cities, and 5 countries around the world, with 431 topics (an increase of more than 100 articles compared to the 1st conference). Of which, 109 topics are in the fields of economics and finance; 230 topics are in the fields of social sciences and humanities; 92 topics are in the fields of science and technology.

Source