What is a Fob Key?
A key fob is a handheld remote control operating a keyless entry system. It is responsible for unlocking your car with the push of a button. However, key fob technology has many more capabilities than meets the eye.
Many people use key fobs constantly without realizing their importance. These tiny devices have revolutionized remote keyless entry systems in cars and other applications. Losing your key fob for just a few minutes highlights its significance to people’s daily lives.
We’ll cover various aspects of key fobs you may not know about. We’ll also discuss the significance of key fob cases in an RFID key fob system and guide you on selecting the appropriate one for your device or secure access system that requires a remote control.
What is a Key Fob?
Five fundamental principles characterize the design, manufacturing, and use of key fobs today.
- A key fob is a small device that works as a remote control. It contains an RFID chip and an antenna. The key fob uses radio frequencies to communicate with a reader device attached to a lock. The key fob’s RFID chip is programmed to transmit specific information that matches the reader device’s acceptance.
- Pressing the button on the key fob sends an RFID signal to a reader device. The door will only open if the transmitted RFID information matches the reader’s program.
- RFID key fobs can transmit various commands as they are highly versatile. These may include opening a specific door or starting an engine, which is commonly assigned to different buttons in the key fob units of most automobiles.
- A key fob is a small plastic device that can fit in your hand. Some key fobs act like badges, which can open an electronic lock by holding it close. Other key fobs have buttons that send out RFID signals. Each controller performs a unique action, such as locking the car, unlocking the car, or opening the trunk.
What is the History of the Key Fob?
The term “fob” originated in the late 1800s when the concept of a “watch fob” was introduced. When pocket watches were popular, a watch fob referred to a small ribbon, chain, or ornament added to a pocket watch. The German word “fuppe,” which translates to “pocket,” is believed to be the origin of the word “fob.”
In the 20th century, “key fob” referred to decorative keychains. If you talked about a “key fob” to someone in 1960, they would think of a small ornament attached to a set of keys, such as a sports team logo or a favorite photo. Today’s electronic device, a key fob, is named after this older meaning.
The term “key fob” was given a new meaning when remote keyless entry systems were introduced in American cars in the late 80s and early 90s. The initial remote keyless systems used infrared waves, but they had some significant drawbacks, like needing an uninterrupted line of sight and being prone to interception. RFID replaced infrared as the primary technology for remote keyless entry systems due to its enhanced security and reliability.
Modern keyless systems come with various innovative features. For instance, some have a powered lift gate feature that lifts the vehicle’s rear hatch, making it convenient for shoppers carrying a heavy load of groceries. Some systems can also start the car remotely, which is handy for warming the vehicle when cold outside.
Final Thoughts
In conclusion, key fobs are small devices that provide a secure access system for cars and other applications. They utilize advanced RFID technology to communicate with an electronic reader device and allow users to perform various actions at the push of a button. Key fobs have revolutionized remote keyless entry systems and are essential to everyday life.
Ensuring you have the appropriate key fob case or protection for your device is crucial to protect it from any potential damage. Understanding what is a key fob, its history, and its purpose can help you decide when to select one. Today’s technology allows us to stay safe and secure while accessing all modern conveniences.
