Raspberry Pi CM4 based predictive maintenance gateway features Google Coral Edge AI accelerator

Techbase had already integrated the Raspberry Pi CM4 module into several industrial products including Modberry 500 CM4 DIN Rail industrial computerModBerry AI GATEWAY 9500-CM4 with a Google Edge TPU, and ClusBerry 9500-CM4 that combines several Raspberry Pi CM4 modules into a DIN Rail mountable system.

The company has now announced another Raspberry Pi Compute Module 4 gateway – iModGATE-AI – specially designed for failure monitoring and predictive maintenance of IoT installations, which also embeds a Google Coral Edge TPU AI module to accelerate computer vision.

Techbase IModGate-AI predictive maintenance gateway

iModGATE-AI gateway specifications:

  • SoM – Raspberry Pi Compute Module 4 with up to 32GB eMMC
  • AI accelerator – Google Coral Edge TPU AI module
  • Video Output – HDMI port
  • Connectivity – Gigabit Ethernet
  • USB – USB 2.0 port
  • Sensors – 9-axis motion tracking module with 3-axis gyroscope with Programmable FSR, 3-axis accelerometer with Programmable FSR, 3-axis compass (magnetometer)
  • Expansion
    • 2x 16-pin block terminal
    • Advanced Analog Inputs (up to 24-bit) with tensiometric input support
      RTC with battery on-board

iModGATE-AI relies on the same custom motherboard found in ModBerry 500-CM4 gateway, but the AI gateway is designed to work as an AI-aided environment monitor using sensors, such as tensiometric beams, connected via the analog inputs.

Tensometric beam module
Tensiometric beam module used to measure tensile strength

Most of the predictive maintenance is offloaded from the Raspberry Pi CM4 module with the motion tracking module including a DMP (Digital
Motion Processor) to offload traffic processing algorithm calculations used to monitor shocks and vibrations, while the Coral Edge TPU module uses machine learning for computer vision and failure prediction. Applications for the system include HVAC, wind farm monitoring,  Smart Building & Cities, conveyor systems, robotics, and more. It’s currently being used by at least one of Techbase’s customers in a solution that monitors container ships.

We’ve been told iModgate-AI is available for purchase on iiot-shop.com, but there’s no pricing so you may have to chat with your requirements if you are interested. The company also highlights that “due to
pandemic and global electronics market shortages the availability is dependent on supply of Raspberry Pi Compute Modules, Coral from Google, 9-axis module and optional wireless modems”

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