More about The Keyless Entry Long Beach System

Mobile electronics can include many different types of accessories with various functionalities. For example, a really cool accessory is remote keyless entry. If one has a car that didn’t come standard with this feature, then one know what I am talking about. Having to manually lock and unlock the car is a pain in the neck. But for as little as $135, one can add remote Keyless Entry Long Beach. To do this, one must buy a $35 door-lock actuator to control the manual-lock function in the car doors. Then one wires a $100 remote keyless entry kit to the actuator to make the locks work by remote control. If one does the labor him or herself, he or she can really get this project done for a small cost. Passive keyless entry systems mean the driver doesn’t even need to press a button to unlock the vehicle! The electronic key is simply carried in a pocket, on a belt clip or in a bag. The controllers in the doors communicate with the key using radio frequency (RF). This action determines if the correct key is present and, if it is, the doors are unlocked.

Passive Keyless System

This communication event is triggered by lifting the door handle, or in some cases the vehicle will even unlock as the key holder approaches it. PKE systems need the same level of security as any other remote locking method. Conventional RKE is a unidirectional process. In other words, signals are only sent from the key to the receiver. With PKE the communication is two way. This is because the PKE system carries out an ‘identity friend or foe’ (IFF) operation for security purposes. The vehicle sends a random challenge to the key; the key encrypts this value and sends it back to the vehicle consumes significant power. There is also an issue with power consumption for the base station (vehicle) if the doors are designed to unlock as the key approaches. To achieve this base station must poll continuously. In other words, it must keep looking for the key. This consumes battery power, which could be an issue if the vehicle was left for a long period. However, this method does have the advantage that the doors will always be locked unless a key is present.

If the method of lifting a handle is used as a trigger, then no power is consumed until needed. The down side of this method is that the user will want to feel the door unlock as the handle is lifted. However, some companies have developed a low-frequency RF chip. With a standby current of 5 A and less than 10 mV peak-to- peak sensitivity, the chip therefore provides a long battery life. It comes in an industry-standard package small enough to fit into a key fob or credit card device. This type of system is likely to become very common. Some KeylessEntry Long Beach systems can even is set up to recognize multiple keys. The car could even be programmed to ‘know’ who was driving and set seat and mirror positions automatically!

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