A key fob is a simple device that manufacturers design to provide consumers with certain personal items like a home, a locked automobile, or an office. Check out our post on how key fob works for a more in-depth explanation. Key fobs provide remote access, which is effectively digital keys. So, the user is no longer needs to use a physical key for it. The fob adds reliability and safety to manual locks that aren’t usually available.
Radio Frequency Identification (RFID) in Key Fobs
Fobs have a built-in Radio Frequency Identification (RFID) mechanism that allows them to lock or unlock an item. An electromagnetic field is used in this barcode technology to locate or identify stored information identifiers or tags. By using wireless signals, the tag transmits data to the remote device.
The RFID technology works similarly to a debit card chip in that it gives the fob unique protected information. A reader is included inside the fob case to collect data from the tag. The system will execute the unlocking or locking operation if the data from the tag matches the data that the fob is seeking.
The main difference between a debit card chip scanner or reader and a fob is that the frequency is not sent until the fob or RFID is in a static state. They can activate the remote function by pressing the button on the remote if the user is close enough to the RFID device.
Configuration of a Key Fob
You need four following basic things to configure a key fob:
- A locking system
- A remote reader
- The key fob
- A door
A code printed on a microchip is the starting point for the fob configuration. The chip has a pre-programmed frequency that connects with the reader directly. The door will open if the frequency and the code match. Every fob has its code, but if you have difficulty, you can search online auto locksmith near me. However, only one fob is allocated initially to each door.
As a result, a manufacturer can create numerous fobs with the same code for a single reader. Multiple people can utilize the same door with this configuration.
Configuration of the Remote Reader
You can use a remote reader to scan the key fob’s information. When the user places the fob in front of the remote reader, the reader either takes the data and executes the operation or refuses it and does nothing. The reader includes a transmitter that transmits the signal to the fob, which response to the transmitter’s frequency.
You can also go to an affordable locksmith to configure the fob. The magnetic ﬁeld transferred between the unit and the remote reader provides power to the fob. There is no need for battery power because the energy is magnetic. Producers can build small fobs that fit on keychains, and you can store them in small containers without the use of a battery. However, in order for the transmitter to communicate signals over extended ranges, the reader may need to be more significant. Most of the transmitters utilize a 125kHz frequency.
Locking System of a Key Fob
You need a security precaution that enables or restricts access to a door lock for every key fob and remote reader device. By incorporating a locking system, manufacturers increase the level of protection.
However, the system tests the signal when the user presses the key fob’s button. The system unlocks the door if there is a match. If the reader and the fob do not match, the system will not unlock the door and will not open.
Open Access Readers and Fobs
You can design to communicate the fobs and remote readers on the open-access platform. Manufacturers can make a unique reader or fob that can interact with a variety of different devices. It permits several people within a facility to access the same door. A single fob can match the same signal from many fobs in a condominium with a meeting room, swimming pool, or clothes washing room. The facility will be accessible to all users who have a matching fob.
Entry Access with Multi-Level Remote
Although remote access is easy to set up, there are several alternatives for a system that it may use in various situations. A server functions as the locking system for all entrances into a facility or for specific parts within the building. Facilities may use a particular area that requires varying levels of access.
The server connects with numerous fobs and readers simultaneously to provide inhabitants access on several levels. Some people may have full access to the building area, while others may only have access to certain portions. Without requiring new fobs or readers with each update, an administrator can design and replace the server as needed.
This method of wireless access is both more easy and safe. It also allows users to carry a convenient device that is able to fit in their pocket. Remote access is by far the most incredible option for any institution that demands a high level of security but does not want to change keys and locks on a regular basis.