Monitoring hospital mattress occupancy with an Arduino Nano 33 BLE Sense

In care amenities and hospitals, having the ability to inform when beds are occupied or free is important data for the workers, as they’ll transfer onto different duties extra rapidly with up-to-date data. Adam Milton-Barker’s hospital mattress occupancy detection system goals to perform this purpose by combining embedded machine studying fashions and related {hardware} for gathering real-time knowledge.

Milton-Barker’s first step was to create a brand new Edge Impulse challenge and add a number of samples of himself both moving into mattress for an occupied standing or standing as much as point out a emptiness by taking steady measurements from a Nano 33 BLE Sense’s built-in accelerometer, gyroscope, and magnetometer. As soon as handed by means of a spectral evaluation block, the ensuing nine-channel knowledge was used to coach a classification mannequin that might precisely detect when an individual both will get in or away from bed, or for an absence of common exercise.

The ensuing mannequin was exported as an Arduino library and added to a customized sketch that fuses the readings from every of the sensors’ three axes and passes it by means of the identical spectral evaluation block and the now-trained mannequin to obtain an inference.

In his challenge write-up, Milton-Barker speculates that this answer could possibly be additional prolonged by leveraging the Arduino’s onboard LEDs, Bluetooth connectivity, and recognizing extra motions.