Definitions:
It is an electronic system in a vehicle that allows its owner to lock/unlock the vehicle doors or some other variants it can also control the window open/close movement and even it can start the car’s engine without inserting the key.
Nowadays, modern vehicle like cars or motorcycles have been equipped a remote unit that can lock and unlock them, don’t think it is just an ordinary remote lock. It is a vehicle keyless entry system that has several functions for your vehicle.
This keyless system takes the main role for your vehicle’s security system. It functions as door locking system, alarm system, call or answer back system, windows controller, and vehicle ignition system.
How Do Remote Keyless Entry Systems Work?
This system usually works with 2 main units that work together making a radio frequency communication each other. This system consists of the following unit:
- Remote Key Fob
It is a small handheld remote device that has several buttons such as lock, unlock, alarm check, trunk door opener, slide door opener or with some other button configurations. This unit usually works at transmit frequency 433MHz or 314MHz and receive frequency 125kHz or 134kHz. - Body Control Module or Electric Control Unit
This unit is installed inside the car’s dashboard or behind the vehicle’s multi information display [MID], this unit also works at transmit frequency 125kHz or 134kHz and receive frequency 433MHz or 314Mhz.
As you can see, these 2 units work in the similar frequency ranges for the transmit and receive communication, the car manufacturer set the code encryption for these 2 units using the available working frequencies. So, functions like dook-locking system, star-stop engine can be enabled using this system.
Advantages of Remote Keyless Entry Systems
Remote keyless entry systems offer numerous advantages, both in terms of convenience and security:
- Convenience: The most obvious benefit of RKE systems is the convenience they offer. Car owners can easily unlock and lock their vehicles from a distance, eliminating the need to manually insert a key into a lock. Some systems also allow drivers to start their vehicle remotely, which is especially helpful in extreme weather conditions.
- Enhanced Security: The use of encryption and rolling codes helps protect against potential hacking or signal interception. Unlike traditional keys, which can be easily copied, the advanced technology in RKE systems provides a much higher level of security. Additionally, the system often includes a built-in alarm or immobilizer that helps deter theft.
- Keyless Access: The ability to unlock the vehicle with the push of a button or the approach of the key fob is a major selling point for many drivers. With proximity-based keyless entry, owners no longer need to fumble around for their keys. The vehicle will automatically unlock when the driver comes within a certain range of the vehicle.
- Remote Start and Climate Control: Many modern RKE systems include remote start functionality. This allows the driver to start the vehicle from a distance, which can be particularly useful in cold or hot climates. The driver can pre-warm or pre-cool the cabin, making the vehicle more comfortable upon entry.
- Reduced Wear and Tear: Using a remote keyless entry system reduces wear and tear on traditional keys and locks. Since there is no physical contact with the lock, the mechanical components of the car’s locking system experience less wear over time, potentially extending the life of these parts.
Things you need to be aware
After talking about the advantages, there is still some items you need to concern of using this system. The remote key [FOB] uses a coin battery that would usually last for 3-5 years, then you also need to monitor the vehicle battery as well because it also powers the BCM and ECU units.
And another human error factor like losing your remote key will cause more complex problem where you have to contact the car dealer to get purchase and set the replacement unit.
This system uses radio frequency, does it need DJID certification?
The simple answer is yes. DJID [formerly SDPPI] has decided this product is also in their scope for the certification. The good news, this kind of product has very simple testing process. We can utilize the normal product for the test sample and you do not need to specially design a test mode.
They are just usually plug and play for the BCM or ECU units and press and play for the key FOB unit. The testing process is done in a radiated method which I already explain you in my previous writing.
We have handled hundreds or certification for this product so far, they’ve always been going so smoothly in the testing process. So, leave us a comments or question if you have any inquiry for this product.