Lumisafe utilizes advanced depth sensor technology, specifically time-of-flight sensors, as a fundamental component of its privacy-friendly fall detection system. Understanding how these sensors work is key to appreciating Lumisafe's unique approach to safety and privacy.

Unlike traditional cameras that capture detailed visual information (RGB data) showing colors, textures, and identifiable features, depth sensors operate differently. Time-of-flight sensors measure the time it takes for a pulse of light to travel to an object and return. By doing this across a scene, they create a map of distances, essentially seeing the world in 3D spatial data rather than a flat image.

The critical advantage of this technology for Lumisafe is its inability to capture RGB data. This means the sensor cannot see faces, clothing details, or any other visual information that could identify an individual or reveal private activities. The output is purely spatial – it understands shapes, distances, and movements within a defined area, but without any personal visual detail.

This inherent limitation of depth sensors is a deliberate choice and a cornerstone of Lumisafe's privacy-friendly design. In sensitive environments such as public restrooms, private bathrooms, or healthcare facilities, the use of standard cameras for monitoring raises significant privacy concerns. People expect and deserve privacy in these spaces.

By relying solely on depth data, Lumisafe ensures that while it can accurately detect the event of a fall based on changes in body shape and position, it does so without ever compromising personal privacy. No images of individuals are captured, stored, or transmitted. The data processed is abstract spatial information, not personal visual records.

This depth data is then processed 100% locally on the Lumisafe device using built-in machine-learning models. These models analyze the spatial information to identify poses and detect falls. The entire process, from data capture by the depth sensor to fall detection analysis, happens on the device, further reinforcing the commitment to privacy by keeping sensitive data local.

In summary, depth sensors, particularly time-of-flight technology, are essential to Lumisafe's operation. They provide the necessary spatial data for accurate fall detection while fundamentally preventing the capture of personal visual information. This technology is what allows Lumisafe to offer a highly effective safety solution that respects and protects individual privacy, making it suitable for deployment in locations where privacy is paramount.