The system monitors temperature and pH through LoRa MEI is the solution IoT uses STM32, allowing data to be collected from multiple LoRa Sensor Node and transmitted LoRa Master Gateway. Gateway displays data on the screen, while connecting Ethernet (LAN) or Wi-Fi to transmit data to the platform MEI ECO via protocol MQTT. The system supports sensor connection RS485 Modbus RTU, 4–20 mA or Analog, set alarm threshold and send Push Notification when the parameter exceeds the limit. Both Sensor Node and Gateway are supported Offline Data Logging, automatically synchronizes data when connection is restored, and provides Dashboard, trend charts and Export Excel report on Web/App.
Remote sensor monitoring
Products
Remote sensor monitoring
LoRa MEI temperature and pH monitoring system is the solution IoT developed on the platform STM32, allowing simultaneous monitoring of multiple distributed measurement points through the network LoRa. The system includes the LoRa Sensor Node Collect temperature and pH data and transmit it wirelessly LoRa Master Gateway to display directly on the screen and transmit data to the platform MEI ECO passed Ethernet (LAN) or Wi-Fi use protocol MQTT.
The device supports sensor connection RS485 Modbus RTU, 4–20 mA or Analog, meeting the ability to integrate with many types of industrial sensors. The system allows configuration of sampling cycle, data transmission cycle, alarm threshold for each parameter and sending Push Notification when temperature, pH exceed limits or device connection is lost.
To ensure data integrity, both LoRa Sensor Node and LoRa Master Gateway All functions are integrated Offline Data Logging, automatically saves data when the LoRa connection is lost or the server connection is lost, and synchronizes all data when the connection is restored. MEI ECO platform supports Dashboard, trend charts, user authorization and Export Excel report, effectively meeting the need for real-time environmental and water quality monitoring.
TECHNICAL SPECIFICATIONS
The system monitors temperature and pH through LoRa MEI's is the solution IoT Data Logger developed on the platform STM32, allows data collection and monitoring from multiple distributed measurement points in factories, water treatment stations, ponds, chemical tanks and industrial systems. System architecture includes LoRa Sensor Node and LoRa Master Gateway, helping to expand communication range without the need to deploy long-distance RS485 lines.
The LoRa Sensor Node Integrated STM32 microcontroller, supporting sensor connection temperature and pH passed RS485 Modbus RTU, 4–20 mA or Analog inputs. Data is processed at the device, timestamped and transmitted wirelessly LoRa Master per configuration cycle or when an alarm event occurs. LoRa networks use mechanisms CRC, ACK and Retry to ensure reliability and minimize packet loss in industrial environments.
LoRa Master Gateway Collect data from many Sensor Nodes, display measurement values directly on the LCD/HMI screen, and simultaneously connect Ethernet (LAN) or Wi-Fi to transmit data to the platform MEI ECO through protocol MQTT. Integrated Gateway Offline Data Logging, allows data to be stored when the Internet or server connection is lost and automatically synchronized when the connection is restored.
The LoRa Sensor Node There is also integrated local memory to save data when the LoRa link with the Gateway is lost. After the LoRa connection is re-established, data will be transmitted in the correct time sequence, ensuring no loss of measurement information.
The system allows configuration of sampling cycle, data transmission cycle, and warning threshold High/Low for each temperature and pH parameter, and send Push Notification to Web/App when the value exceeds the limit or when Node, Gateway or sensor connection is lost. The software platform supports Dashboard, trend charts, multiple measurement point management, user authorization, saving operating history and Export Excel report, meeting the requirements for centralized monitoring and real-time data management.
Technical specifications are subject to change.
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