2 Basic Technologies Behind The Garage Door Openers
The fascinating science of opening your garage door by the push of a button was a welcome development. That seamless drive into your garage saved us the trouble and energy of having to go manual with the process involved in opening and closing the garage gate. Simple and acceptable as the mechanism is most people aren't in the know of how it works or the technology behind it. And that's where I come in; to tell you about the two basic alternatives to remote controlling the garage door.
In the 1950s, all garage doors were the same, in terms of how they were opened. All thanks to a radio signal.
Think about that…
Yeah, security issues became the norm since anyone with an opener could gain access to any garage.
The answer to this challenge was the DIP switches. "A DIP switch is a series of tiny switches that are connected to a circuit board inside your remote control". The various switches involved had to be constructed in several permutations. It is these several permutations (up to 256 possible ways) that secure the remote.
You had to be a good guesser to have the right permutations…let's face it, not an easy task guessing your way through 256 possibilities!
Your remote control units; the receiver (for the garage) and the garage door opener both are supplemented with the switch. So to successfully open the garage door, both switches must be set at same permutation.
There is now some recent argument, that DIP switch garage openers are now old-school. Their argument is that thieves are now armed with basic radio readers that can scan out the codes needed to work the receiver. Cracking this gives them access to your garage door.
A rolling code is a type of garage door opener that uses chip so as to ensure more security. This computer technology depends on the embedded chips designed into your receiver unit and the remote device. A push of the remote button sends the matching signal code to the receiver and then recreates a new code. So each time you enter through the garage door, you are automatically served a new code for the next entrance.
By so doing, the old codes are discarded and the next time you make attempt to enter the garage door. It will work with the latest code.
