The first phase is an initial deployment that would include interceptor missiles and sensors based both in space on the ground.
Some include other sensors such as relative humidity, wind, light, etc.
A more sophisticated system might include motion detectors and sensors that can detect glass being broken.
The invention includes multiple sensors, a microphone and cameras.
These technologies include sensors, space qualified components, optics and algorithms.
Enhancers include sensors that also detect failed heating systems and flooding.
It included orbital defenses, sensors, and the main library.
The system includes sensors to detect tampering or movement and features a large red button to shut it down in an emergency.
The portals do not include sensors for liquid explosives, even though terrorists have long shown an interest in them.
In many cases, a single part includes gyroscopic sensors for multiple axes.