[[TracNav]]

= The Bat System =

== 3D Ultrasonic Positioning for People and Objects ==

Bats are lightweight wearable devices featuring ultrasonic transducers,
a 433Mhz radio transceiver and a long-life battery, amongst other
components. They are used throughout the DTG to precisely locate
people and objects, providing a location-aware environment. Each Bat is
distinguished by a unique identification code and permits input
through two small buttons on its side.

[wiki:BatSystem Introduction to the Bat System]: An introduction and overview of the Active Bat system and the DTG's sentient infrastructure.

[wiki:local/DoorControllerCircuit DTG Door Controller]: an overview of how the automated unlocking of the DTG front door using the Bat system functions.

[wiki:BatSystem/Distances Usage Patterns]:  Statistics and usage figures for the Bat system

[wiki:BatSystem/Photos Photos]: Photos of the Bat system and of the older Active Badge system