Taking the initiative to find smart key PKE instead of RKE is the trend of the times
Recently, a hot post on the Cheyou Forum, "Sorrows and Joys: Can I Reproduce the Remote Control of the Car in 1 Minute?" After the online release, it attracted people's attention and heated discussion. The post said that the remote control of the garage remote control and the car alarm can be copied, and copying the remote control like this can usually be completed in one minute. There are different "remote replicas" for different remote controls. "To copy. The netizen shouted, if even the car alarm can be opened so easily, how can we make the car safe? Is there any car alarm that can't be cracked on the market? The "copy remote control" in the text actually It is through the decoding technology to check the unlock, as long as the transmitter's frequency and password can be cracked can unlock.
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Traditional one-way alarms are not safe
First understand the working principle of the ordinary car alarm (RKE): When the owner presses the lock, the remote controller sends a series of instructions to the anti-theft host in the car, and then the anti-theft host takes the corresponding action according to this instruction. Called active remote control, that is, the behavior of the anti-theft host depends on the instructions of the remote control. Therefore, if the anti-theft host does not receive the signal from the remote control or receives an error signal, the host cannot handle it correctly.
According to the relevant regulations of China's radio management, car alarm manufacturers can only select two frequencies when designing the remote control, which means that the two frequencies are fixed. The so-called "jammer" is to take advantage of this, constantly transmitting the signals of these two frequencies to interfere with the car owner lock, because the remote control's transmission signal will be unable to receive the correct one if it is interfered by the same frequency signal. The command can not lock the car, which is what we call "co-channel interference", and the most deadly is that this "co-channel interference" technology is not a high-tech technology at all, the entry threshold is very low, or even not needed at all. With professional knowledge, you can make or get a jammer. Therefore, the owner of the car lost property in the car or even lost the car incident frequently.
PKE replaces RKE is the trend of the times
The latest PKE (Passive Keyless Entry) technology, also known as "passive keyless entry" technology, works in the opposite way to RKE. Vehicles equipped with PKE system will automatically identify the owner's identity. Generally speaking, the car will take the initiative. Look for the smart key. We know that the car with this product will automatically lock the door and enter the anti-theft monitoring state when the owner stops and leaves the car for more than 1.8 meters. When disturbed by a jammer of a car thief:
Two situations:
1. The owner has been disturbed before leaving the 1.8 meter. At this time, the signal of the "remote control key distance" of the car is disturbed, and the legality of the key cannot be correctly recognized. The system will lock the door in advance;
2. The owner has left more than 1.8 meters, because the door has been locked, the interference has not been effective, but the greater the interference, the less the host can find the key, the less unlocked. Therefore, PKE technology has completely surpassed RKE technology in terms of convenience, intelligence and security. It is the general trend to replace RKE.
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Layton
Layton P28 intelligent sensor anti-theft device is a new car alarm system with PKE technology smart card design. In addition to all the functions of ordinary car anti-theft system, the owner only needs to wear the smart card on the body and approach the car, the vehicle will automatically recognize Automatically open the door; leave the car, the system automatically locks the door, and automatically enters the fortification alert state. When you walk close to the vehicle 1.5 meters - 2 meters, the door lock will automatically open and unlock theft; when you leave the vehicle 1.5 meters -2 When the meter is locked, the door lock will automatically lock and enter the anti-theft state. If there is a door that is not closed when you leave, the vehicle will give a warning sound; when you start the vehicle, the first foot brake, the four doors will automatically Lost lock. When traffic jams in the city or at night, prevent unexpected accidents such as bags and bags (anti-grab function), so as to be foolproof.
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