In the 1990s, advancements in technology allowed security systems to become more sophisticated internally, but easier to install externally.
One of the first major advancements was the advent of the motion detector. This device,about the size of a computer mouse, would be installed in strategic places within the house. When the system is armed, any movement would be picked up by the motion detectors and the loop (current) would be cut, resulting in a ‘0’ bit notification; hence, it would cause the while loop to branch out to the function that is designed to sound the alarm.
The difference in the technology is that the programming is incorporated into a small integrated chip (IC) that is nestled into the motherboard of the central control unit.
One of the concerns by consumers was that the motion detectors would pick up movement by pets and consequently, additional programming was added that would allow the detector to only cut the loop if the height of the subject is over four feet or programmed to whatever it height the manufacturer determined it to be.
Another advancement was the removal of the wiring to the landline phones and instead, a radio would replace the communication to the central service. This way, if an intruder would break into the house and cut the phone wires, the alarm would still be able to communicate with the service.
Of course videocapture has been in use for decades, but it wasn’t until 2010 and later where cameras were introduced that would be able to capture movement and record that movement in the cloud, of which the customer would be able view via a password to the account from anywhere. This utilizes the same technology as the motion detectors, although, it becomes trial and error testing for it not to record cars and squirrels and other further away or small objects when capturing video.