With the advent of the automotive electronics intelligence era, engineers will encounter the mass production requirements and challenges of automotive electronics PKE, how to mass production? How to encrypt a mass-produced smart key? In response to such challenges, Zhiyuan Electronics offers the most cost-effective, multi-channel PKE batch programming solution.
From the perspective of the global auto market, the industry as a whole has maintained a growth trend since 2005. The sales volume of automobiles has increased from 65.957 million in 2005 to 896.78 million in 2015, with a compound annual growth rate of 3.12%. With the increase in the amount of vehicles used, the car's anti-theft technology has received extensive attention, and the details will be described below.
The development of the car's anti-theft system has gone through three phases: the traditional mechanical key system, the remote key system and the keyless intelligent system.
Traditional mechanical key system
This method achieves the anti-theft purpose through the mechanical principle, the key is opened, the key is fired, the technology content is low, the anti-theft performance is insufficient, and the key information is easily copied, and the method is rarely used alone.
Figure 1 Auto mechanic key
Remote key system
The remote key system is an upgrade of the traditional mechanical key system. Through the radio frequency technology, the door is opened and locked by the remote control. Compared with the traditional mechanical key, the remote key must be double-identified by the key and the chip to start the car. The security features are sufficient, and the chip has various software and hardware encryption matching algorithms, which increases the difficulty of cracking the system.
Figure 2 car remote control key
Keyless intelligent system
Many models are currently equipped with a keyless system, which is an intelligent system that automatically locks and opens the door. When the owner leaves the car, the sensor inside the car does not sense the presence of the key, and the door will be automatically locked. When the vehicle is in the locked state, the signal will be continuously sent out. When the smart key appears in the signal range, it will There is a response to complete the checkmark behavior.
The intelligent system can be used not only for car locking, but also for intelligent actions such as pre-turning on the air conditioner, which brings us a more comfortable car experience. The emergence of the car keyless intelligent system not only facilitates the owner, but also improves the safety performance of the car.
Figure 3 car keyless control system
Having said that, is it that the keyless control system is very high? What kind of powerful chip is designed with such a powerful chip? I want to know what happened, and look at the decomposition below (note that it is not "next time").
The PCF79xx series of chips is a product introduced by NXP semiconductor manufacturers around the field of car theft, driving the car anti-theft system to a more advanced stage. The chip has extremely low power consumption, guarantees the endurance of the system, integrates UHF transmitter and LF transceiver chip internally, and has various software and hardware encryption algorithms, such as Hitag2, Hitag2-E, Hitag-AES, etc. The security of communication. And the internal 32-bit unique identification number (ID) is solidified, and the encryption algorithm is bound with the ID, so as to achieve the unbreakable effect, as shown in the following figure, the chip ID information read by the P800 programmer.
In the face of the rapidly growing automobile market, the safety of automobiles has caused widespread concern in the society, and the demand for anti-theft systems is also growing. In order to meet the needs of the market, Zhiyuan Electronics has launched the P800-ISP online programmer, which can batch burn PCF79xx series chips and solve the problem of batch demand of smart keys.
Solar Energy System,Commercial Solar Power System,50Kw Solar Power System,Complete Solar System
Jiangsu Stark New Energy Co.,Ltd , https://www.stark-newenergy.com