ISURLOG IIoT ecosystem for infrastructures and processes smart management

ISURLOG IIoT (Industrial Internet of Things) is an ecosystem of wireless sensors, data loggers and cloud software that provides a unique platform to monitor numerous field parameters of infrastructures, utilities and processes.

Since no external power supply is required by the field devices, it can be deployed over remote and isolated geographical extensions, thus providing real-time information for the management of natural resources, infrastructures, and facilities. Typical applications are: • Climate change. • Smart cities (health centres, public buildings, street lighting...). • Water infrastructures. • Air quality. • Green energy plants. • Monitoring compliance with energy restrictions. • Wildfires prevention and monitoring. • Natural resources (water, marine and forestry). • Agriculture.

ISURLOG ecosystem is based on the state-of-the-art SP-IIoT-SAP (Self Powered Industrial Internet of Things Sensor Access Point) technology, thus offering: • Not even rechargeable batteries are needed for operation, using a disruptive energy harvesting supply. • Data monitoring and device management from/to any smart terminal. • Alarm messaging on Telegram and email. • General purpose input/outputs allowing the connection of practically any sensor. • On the cloud data hosting. • IIoT-NB and LoRa connectivity options.

ISURLOG units can be deployed as either a stand-alone device or as a decentralized distributed periphery of the IRIS IIoT ecosystem (like a wireless sensor access point of the IRIS BOX RTU neural network controller and gateway, providing remote access to a wide geographical area). ISURLOG uploads logged data files to the cloud in a user-configurable interval, ranging from 5 up to 1440 minutes. Logged data files are user-accessible in a .csv format, thus providing direct importation from any datasheet application. ISURLOG  includes easy user configurable UDP/MQTT/Modbus links to third-party industrial automation devices, such as PLCs, PCs and controllers… automatically transmitting ASCII strings containing the last logged parameters values. Therefore, ISURLOG virtually acts as a wireless decentralized I/O unit of any smart device including a UDP/MQTT/Modbus port.

Core Architecture & Specifications

• Processor: It is built around the ESP32 microcontroller ecosystem.

• Firmware: Runs a modified open-source implementation of MicroPython v1.25.0 under the GPL-3.0 license.

• Power Efficiency: Engineered for harsh field deployments with an ultra-low deep sleep consumption as low as ~20 µA, allowing it to operate for years on internal battery packs.

• Industrial Sensing: Supports standard industrial protocols and signals including 4-20 mA analog inputs, Modbus RTU (RS485), PT100/PT1000 temperature sensors, and digital pulse counting. It also includes an onboard accelerometer for physical tamper detection.

Connectivity Options

The hardware platform operates seamlessly across multiple communication protocols depending on the unit type:

• Terrestrial & Low-Power Networks: NB-IoT, LTE-M, and LoRaWAN.

• Satellite Integration: Supports NB-IoT-NTN satellite connectivity natively via a Nordic nRF9151 modem, enabling remote data transmission in areas completely lacking cellular coverage.

• Local Maintenance: Equipped with Bluetooth Low Energy (BLE) and Wi-Fi for localized parameter configuration and diagnostics.

Software Integration

Collected metrics (such as flow, level, pressure, and temperature) are automatically stored in a cloud environment and managed via the IsurDASH platform, which provides users with web dashboards, analytics, and instant alert configurations via email, SMS, or Telegram.