Ultra-wideband intent detection using mobile device motion sensors

A method of operating a physical access control system (PACS), the method comprising:

• detecting, by a reader device of the PACS, presence of a person using an ultra-wideband (UWB) signal, wherein the reader device is associated with a physical access portal;
• establishing, by the reader device, a communication channel with a credential device associated with the person;
• receiving Inertial Measurement Unit (IMU) information from the credential device using the communication channel;
• determining intent using the IMU information regarding whether the person intends to access the physical access portal;
• and
• authenticating the credential device when the determined intent indicates the person intends to access the physical access portal.

A method of device-based detection of intent to access a physical access portal, the method comprising:

• inputting training data into a machine learning model to produce an intent detection model, wherein the training data includes:
• layout information of a physical access portal;
• and
• Inertial Measurement Unit (IMU) information produced by multiple credential devices of multiple persons approaching the physical access portal;
• training the intent detection model to classify the IMU information as an intent-to-access-event or an intent-to-pass-by event;
• inputting subsequent IMU information from a credential device into the trained intent detection model when the trained intent detection model is included in a reader device associated with the physical access portal and classifying the subsequent IMU information as an intent-to-access-event or an intent-to-pass-by event;
• and
• authenticating, by the reader device, the credential device when the subsequent IMU information is classified as an intent-to-access-event.