Microsoft's Silicon Valley campus is getting a safety boost, thanks to autonomous patrol robots from Knightscope.

The K5 robots are 5 feet tall and weigh just shy of 300 pounds. They will not be used for arresting or shooting, but have various sensors to notify human security guards of trespassers.

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Knightscope has worked on the K5 robot for a while now, making sure the camera is capable of separating intruders and trouble from everyday workers. The alarm built-in can project loud sounds to deter the trespasser and inform any nearby authority.

Like most security guards, the K5 robots get tired after a time and need to charge up. The K5 robot lasts 24 hours without charge and will automatically go to the charging station when batteries start to run dry - the charge only takes 20 minutes.

Robots are increasingly taking over low-paid jobs, which do not require creativity or a human tool set. For the past 50 years this has mostly been in manufacturing, but now robots come for the rest of the low-paid jobs.

Microsoft will still use human security guards, but not as frequently. The robots will be able to patrol the campus in force, while the security guard only needs to get up if they hear the alarm or get a signal on the dashboard.

Google is also working on robots - recently acquiring Boston Dynamics - a partner of DARPA. These robots will work with military in the field and might one day replace military soldiers, creating a U.S. army purely out of robots.

The South Korean government also recently deployed robot military to the Demilitarized Zone in 2010. The demilitarized zone is often used as a place to scare the different Korean side - both countries only use the largest Korean troops to guard each side.

Some analysts believe drones could have a disastrous effect on the economy and other theorize that once AI gets to a point of thought, it could start becoming a threat to humans, a theory Tesla Motors CEO Elon Musk agrees could be an issue in the future.

Tagssecurity guard, drone, Knightscope, K5 robot