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Frequency hopping PKE/RKE keyless access control system based on NXP S9KEAZ128

keywords : PKE NCK2912 NJJ29C0 KEYLESS IMMO RKE NXP NCF29A1 keyless entry door

The keyless access control system has revolutionized the development prospects of automotive security applications, bringing users a new comfortable and convenient experience. The technology has gradually entered the mid-range car market from the high-end car market, with great market potential. The global keyless vehicle access control system market is expected to grow from US 55279.70 million in 2016 at a compound annual growth rate of 6.06% to US达到7518.76 million in 2022. There are two main products in the keyless vehicle access control system market: passive keyless access control system (PKES) and remote keyless entry system (RKES). The automotive keyless access control system solution launched by Shiping Group is developed based on NXP S9KEAZ128, NXP NCF29A1, NXP NJJ29C0 and NXP NCK2912. It has the characteristics of high integration and low power consumption, and integrates the functions of IMMO, RKE and PKE.

【Function description】

(1) IMMO: Wireless communication between the vehicle and the key is carried out to achieve identity verification, and the verification results are displayed on the LCD.

(2) PKE: Based on NCF29A1, the key terminal transmits a remote control signal at a frequency of 125KHz, and receives a 125KHz signal at the car terminal, which can test the sensing distance, and display the verification result on the LCD after verification.

(3) RKE: Based on NCF29A1, the key terminal transmits a remote control signal at a frequency of 434MHz, and receives a 434MHz signal at the car terminal. After the verification is passed, the verification result is displayed on the LCD.

(4) CAN bus function: The control of the CAN bus is achieved through S9KEAZ128.

 

►Scene application diagram

►Display board photo

►Plan block diagram

►Base station board

►Low frequency board

►High frequency board

►Key end

►Core technical advantages

① Integrated IMMO function for low-frequency encrypted communication ②PKE function, support keyless entry into the vehicle and one-key start ③ RKE function, which can remotely control the doors, windows and trunk ④ The key can be located through RSSI ⑤ Support RF frequency hopping communication

►Program specifications

① Frequency hopping RF transmission and reception, strong anti-interference ②the key is usually in a dormant state and is only awakened when needed. The standby power consumption is as low as 5uA. ③Low-frequency and high-frequency integrated MCU, flexible configuration ④The low-frequency communication distance can reach up to 2.5 meters

► Related videos

WPIg_NXP-PEPS Frequency hopping PKE/RKE keyless access control system based on NXP S9KEAZ128

Demo demonstration of PKE/RKE keyless access control system based on NXP S9KEAZ128 frequency hopping

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Common keywords ：

Automotive electronics

Low-cost PEPS solution based on NXP PCF7991

What is the security of the keyless entry and startup system? How to guarantee?

Does your program have security authentication, and what kind of encryption algorithm is used?

Answer 3 answers
Latest answer

Zhang Gong, the AES algorithm you mentioned is provided by the original factory, but you need to sign an NDA confidentiality agreement. I will explain the details to you by email, thank you!

I want to know more about the transceiver sensitivity of this program.

My younger brother just recently learned about the PKE/REK plan. Please ask what is the sending and receiving distance of your company's plan, and whether it is relatively far away in China.  

Answer 6 answers
Latest answer

Okay, thank you for your technical support. We are: Shanghai Denke Intelligent Equipment Co., Ltd. has just been established and is mainly engaged in smart transportation products. I will contact you by email tomorrow. Thank you.

Consulting software development environment

hello! I want to ask what is its software development environment, such as development software XXX, debugging tools XXX, and burning tools XXX. . .

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Latest answer

Doudi Powerhouse

how can we reach you
we chat cemilaydemir

Distinguishing and anti-jamming of frequency hopping frequency bands

How to distinguish the frequencies of different keys in the same area? And anti-interference ability? How to ensure that frequency information is not intercepted and cracked?

Answer 1 answer
Latest answer

Under static conditions, the base station keeps sending wake-up signals on time (including KEY-specific IDE + random code+ and other information); the Key is in sleep mode, but the LF receiver on the key continues to work independently. When the signal received by the LF receiver matches the Key (there is a specific codec process), the key Will be awakened and feedback status information to the base station through UHF.

The PKE operating frequency of this scheme is 125KHz, and the RKE operating frequency is 433MHz, which cannot be matched with the key of other operating frequencies.

The carrier information is encrypted, and even if the current door opening signal is intercepted, the next door opening signal will be different. For more specific information, you can refer to NXP's original HT3 encryption method and PKE/RKE operating mode.

Wireless controlled distance

How many meters is the farthest distance of the wireless remote control. If it is 2.5 meters, is it too short? Can this distance be adjusted?

Answer 1 answer
Latest answer

The current maximum RKE is 30m, and the current PKE is within 3m, which is mainly related to the transmission power and signal strength of the antenna.

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