Technology Behind Remote Keyless Entry (RKE)

Published: 10th August 2011
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Remote Keyless Entry (RKE) enhances the riding experience in term of both security and convenience. This technology acts on wave-based communication between two apparatus a tiny chip and an electronic control module (ECM). Read on to be updated with this technology.



Almost all modern vehicles are equipped with remote keyless entry (RKE) as a standard option. Presented in form of key-fobs or electromechanical keys, this technology provides a secure mechanism and remote control over several functions of the vehicle. It offers great convenience controlling functions like locking/unlocking doors, releasing the trunk latches, and turn on/off the interior lights and ignition. Additionally, RKE technology facilitates security features that prevent car theft. In this way, this technology enhances the riding experience in term of both security and convenience.



Technology behind keyless entry is based on a two-way communication between a tiny chip and a small receiver installed in the vehicle. Pressing the button on key-fob, the tiny chip transmits the radio waves of a specific frequency. Now the electronic device catches the signal and tries to identify the code. If the code is accepted, the device will generate a command massage for other modules to execute the requested function. The keyless remote device can perform the vehicle functions from a significant distance. It is somewhat like the remote controller of your TV, and operates at a fixed radio frequency. The performance of device is usually determined by the battery life, response time and the range. Let us discuss them briefly.



Battery Life: As the remote is battery powered, its functionality is highly affected by the power consumption. In modern vehicles, battery life is usually specified around five years, to minimize the number of times the rider has to replace the battery. The performance of remote device highly depends upon the life of battery. Since the batteries are polarity sensitive, check out whether they are installed properly or not, in case of non-functionality the of remote device.



Response Time: It is another important performance criterion. Total response time refers the time duration between the pressing of transmissions button and the execution of requested task. To measure the performance, two times are considered the time of transmission, code verification and translation of requested command in standard bus command, and the total time to perform the requested task. Lesser the response time, better the performance. Usually, the total response time in modern vehicles is reported to be less than a second.



Range: No doubt, range performance reflects the quality of device. 3 meter is specified as minimum range that can go up to 10 meters depending upon the technology installed. The high range performance can be acquired complying with standard FCC regulation for RF communication.



Remote keyless entry (RKE) is designed to make the driver's job easier. It relieves the rider performing all the bare functions just in click. The technology offers a code-based protection, and keeps the vehicle safe from theft. Invented in 1983, it has become a popular feature in the modern vehicles. Almost every new car comes with this technology. If someone loses the key-fob, they are the reliable locksmiths who can solve this issue. They provide a new remote device and reprogram it in the vehicle. Some reputed locksmiths have their online presence offering their services online. They offer a wide range of remotes for all brands of vehicle such as Acura, Audi, Chevrolet, Pontiac, Porsche, Hummer and Nissan Altima. Considering the requirements and budget, one can select the best deal for keyless remote. No matter, you are in search of Acura remote or Nissan Altima remote, a reliable locksmith can surely meet your needs.



This article is written by an expert who is currently associated with Auto Transponder, a leading locksmith based in Cleveland, Ohio that provides car keyless remotes and other quality locksmith tools.

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