The BL192 Edge I/O module connects to soil moisture sensors and irrigation control devices such as solenoid valves. It uses the MQTT protocol to communicate with a agriculture management platform.
Case Details
In modern smart agriculture, precise control of environmental conditions is critical to improving crop yield and quality. Soil moisture is one of the key factors affecting root health and water absorption. Traditional irrigation methods often result in water waste or delayed watering, making automated control essential.
The BL192 Edge I/O module connects to soil moisture sensors and irrigation control devices such as solenoid valves. It uses the MQTT protocol to communicate with a cloud-based agriculture management platform, enabling intelligent data collection and remote control:
- Soil Moisture Monitoring: Analog input modules (e.g., Y31) collect real-time data from 4–20mA soil moisture sensors.
- Data Upload via MQTT: The BL192 transmits the collected data to cloud platforms such as AWS IoT, Alibaba Cloud, Huawei Cloud, or ThingsBoard via MQTT.
- Smart Irrigation Control: Based on threshold rules set in the cloud, when the soil moisture drops below the defined level, the system automatically issues an irrigation command.
- Remote Execution: Digital output modules (e.g., Y21/Y22) control the opening/closing of solenoid valves for precise irrigation.
- Edge Logic Processing: BL192 supports local logic control. Even if the network connection is lost, it can still execute irrigation based on pre-set local rules.
Key Benefits
- Precise irrigation based on real-time soil data
- MQTT protocol ensures seamless cloud integration
- Remote configuration and firmware upgrades via BLRAT (Beilai Remote Access Tool)
- Industrial-grade reliability: -40℃ to 85℃ operating range with strong EMC protection
