Accessing the car via smartphone: Hofa’s mobile car key Phone as a Key combines three advanced data transmission technologies to provide a comfortable and secure hands-free car access experience. The combination of Ultra Wideband (UWB) and Bluetooth Low Energy (BLE) offers high-precision positioning, making relay attacks impossible. Furthermore, Hofa’s system, compliant with the AUTOSAR standard, achieves high energy efficiency.
Accessing the car via smartphone: Hofa’s mobile car key Phone as a Key combines three advanced data transmission technologies to provide a comfortable and secure hands-free car access experience. The combination of Ultra Wideband (UWB) and Bluetooth Low Energy (BLE) offers high-precision positioning, protecting the system from relay attacks. Furthermore, Hofa’s system, compliant with the AUTOSAR standard, achieves high energy efficiency.
For the mobile car key, Hofa employs three signal transmission methods found in modern smartphones: Bluetooth Low Energy (BLE), Ultra Wideband (UWB), and Near Field Communication (NFC). Each of these methods has its strengths in securely and comfortably accessing the car. UWB and BLE can precisely locate the vehicle user as they approach the car, complementing each other effectively. We will launch a series of articles explaining how these technologies work in detail and the advantages of Hofa’s digital car key, the “mobile car key”.
Successor Gong
Accessing the car via smartphone: Hofa’s mobile car key Phone as a Key combines three advanced data transmission technologies to provide a comfortable and secure hands-free car access experience. The combination of Ultra Wideband (UWB) and Bluetooth Low Energy (BLE) provides high-precision positioning, making relay attacks impossible. Furthermore, Hofa’s system complies with AUTOSAR standards to achieve high energy efficiency.
Why Does Hofa’s Mobile Car Key System Use Bluetooth Low Energy (BLE) Communication?
The automotive experience begins when you approach the vehicle. BLE wireless technology plays a crucial role in this experience as a smart car access solution, increasingly favored by both car owners and manufacturers.
Bluetooth Low Energy is an improved version of Bluetooth, used for streaming media from smartphones to audio devices. This data transmission system, also known as traditional Bluetooth, requires relatively high energy. Therefore, when traditional Bluetooth is activated, the smartphone’s battery depletes quickly.
On the other hand, BLE requires very little energy, and built-in Bluetooth Low Energy chips with small batteries can operate for years. This is essential for continuous and reliable communication between many devices in the Internet of Things.
Today, all popular mobile devices are equipped with BLE. The low-energy mode of BLE is particularly suitable for use in car access systems like “Phone as a Key.” This system only requires a minimal amount of data to ensure reliable and secure communication between the smartphone and the car. When pairing devices that support BLE, Hofa’s Phone as a Key only uses algorithms compliant with BLE SIG standards. This standard, established by the Bluetooth Special Interest Group (SIG), ensures a high level of security.
About theBluetooth Special Interest Group:The Bluetooth Special Interest Group (SIG) is an international industry association composed of many well-known companies dedicated to further developing and promoting Bluetooth technology.
Successor Gong