Predictive Maintenance techniques detect anomalies in equipment before those turn into system-critical failures, allowing maintenance to be scheduled before the equipment actually breaks down. This increases equipment uptime reduces overall maintenance costs and allows optimization of spare part inventory by enabling preventive maintenance based on the equipment’s actual needs. 

After having proven its benefits in the context of Industry 4.0., this data-driven maintenance strategy is now being adopted in the Smart Buildings of tomorrow. Especially for infrastructure critical assets such as HVAC, Predictive Maintenance offers many benefits.

Condition monitoring uses sensors to provide meaningful insights into the current health of various devices or items of equipment in buildings. These sensors collect data to monitor crucial operating parameters such as vibrations, sound anomalies, airflow, and current. The various types of predictive maintenance take condition-based maintenance to the next level. Building on this sensor data, predictive maintenance then uses advanced analytics and artificial intelligence to predict machine failures before they happen or to anticipate maintenance needs before they become urgent.

Infineon’s broad range of XENSIV™ sensors can be deployed to monitor everything from single components of production machinery to an entire smart building ecosystem. Typical use cases include HVAC equipment where XENSIV sensors monitor current, vibration, and airflow in motors, compressors, and fans. These sensors can be combined with FreeRTOS-certified XMC™ microcontrollers and OPTIGA™ security solutions so the data collected can be processed and analyzed to enable advanced IoT features such as predictive maintenance. Thanks to our Semper™ NOR Flash Memory Family all collected data can be reliably and safely stored.

Typical predictive maintenance examples include HVAC units, which can be mission-critical in healthcare and industrial settings. Experience has shown that HVAC fans, motors, and compressors are the components most susceptible to failure. Information about airflow, current consumption, sound, and vibration can help to understand whether the unit is running smoothly or whether a failure is likely to occur soon. Leveraging Infineon’s products, the following critical parameters can be monitored:

• Airflow measurement at the compressor based on the XENSIV™ DPS368 barometric pressure sensor
• Current measurement at the fan and compressor based on the XENSIV™ TLI4971 current sensor
• Position sensing of the motor with XENSIV™ TLI493D-A2B6 3D magnetic sensor
• Sound anomaly detection in the unit with the XENSIV™ IM69D130 MEMS microphone
• Linear vibration measurement with XENSIV™ TLE4997E Linear Hall sensor
• Opened and closed lid detection with XENSIV™ TLE4964-3M Hall sensor
• Speed and direction measurement with XENSIV™ TLI4966G Double Hall sensor
• Data processing with XMC4700 or PSoC™ 6
• Secured connection and authentication with OPTIGA™ Trust M