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Predictive Maintenance – BOB Assistant

The sensor monitors the vibration signature of an equipment (pump, ventilation, etc.) on the ranges Oto 400Hz (± 6Hz) and Oto 12.4kHz (±200Hz) every 5 minutes adjustable). After an automatic learning period of 7 days, the sensor alerts in case of vibration drift, allowing maintenance teams to intervene before a breakage or failure. Each sensor is identified by a QR code on the label. The data pre-processed by the on-board artificial intelligence is gathered in a report transmitted on the LoRaWAN® network every 180 minutes. The sensor periodically reports the machine’s operating time over the last 180 minutes, the rate of vibration drift recorded over this period, the battery level, the temperature, and a predictive failure probability. Machine status alerts (Start/Stop) are also available (can be inhibited by Downlink control). Powered by a 3.6V /2000mAh battery, the autonomy of the sensor is more than 2 years with a configuration of 8 transmissions per day. The data transmission on public or private LoRaWAN® network is done periodically or immediately in case of alert:

  • Exceeding the vibration drift threshold (adjustable).
  • Machine on/off (adjustable).
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Features

  • A button for activation and deactivation,
  • An RGB LED to monitor configuration and association on the network,
  • 2 magnets facilitating the installation of the sensor on the equipment (also possible by gluing, riveting, screwing, etc.)
  • Smartphone compatible dashboard
  • BOB’s fleet and user management
  • Machine ON/ machine OFF – Alerting system
  • Management of data alerts
  • Overall equipment effectiveness (OEE)
  • Probability failure graph
  • Vibration spectrum
  • Customized alerting through email & SMS
  • Possibility to export data
  • Data available through API

Specifications

    • Range: Low frequency: 0 – 400Hz , High frequency: 0 – 12800Hz
    • Accuracy: ± 6Hz (0 – 400Hz) and ± 200Hz (0 – 12800Hz)
    • Temperature: -20°C to +55°C ± 1°c
    • Vibration: Vibration drift of 25% by default (configurable as Downlink at 10, 15 or 20%)
    • State: Switching on / off (status frames can be inhibited by downlink control)
    • Voltage: Lithium battery 3.6V / 2000mAh on holder (battery can be changed after removing the cover) Transmitted battery voltage level in steps of 0.1 V
    • Autonomy (within a range of +10°C to +25°C): >2 years: 2 samples (low frequency and high frequency) every 5 minutes and 8 transmissions per day.

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Frequently Asked Questions

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