IOT News

LoRa is a Low Power Wide Area Network (LPWAN) communication protocol based on spread spectrum technology, developed by Semtech Corporation. It is designed to achieve long-distance, low-power, and low-speed wireless data transmission. In open environments, LoRa can achieve a communication range of several kilometers (approximately 1-3 kilometers in urban areas and 10-15 kilometers in suburban or rural areas). Therefore, LoRa IoT systems are commonly used in scenarios such as environmental monitoring in remote areas and data transmission for agricultural irrigation systems.

A project requires water quality monitoring at multiple water sources near rural areas. Given their remote locations and minimal obstructions, WideIOT has selected a LoRa communication-based IoT solution. By deploying LoRa data acquisition terminals at the water source sites and connecting them to water quality monitors, real-time collection of parameters such as pH value, dissolved oxygen, conductivity, turbidity, and water temperature can be achieved. These data are wirelessly transmitted via LoRa to the LoRa receiver at the monitoring center. Subsequently, the LoRa receiver interfaces the water quality data with the monitoring platform, enabling functions such as remote monitoring, alarming, management, statistics, and analysis to better safeguard water source security.

Functional Features

• Real-time collection and display of various parameters related to water quality at water sources, such as pH value, dissolved oxygen, turbidity, COD, ammonia nitrogen, etc., and intuitive presentation of water quality change trends through charts and curves.

• Pre-setting of water quality standard thresholds and notification methods. When water quality parameters exceed the thresholds, the system automatically sends alarm messages to notify relevant management personnel promptly through SMS, email, WeChat, etc.

• Water quality data can be stored in MySQL or SQL Server databases and can also be forwarded to environmental protection bureau platforms via the HJ212 protocol, enabling in-depth mining and analysis of historical water quality data.

• Centralized management of various devices deployed at water sources, including device status monitoring, maintenance reminders, and fault diagnosis, thereby reducing potential device failures and ensuring normal device operation.