LG Innotek has developed a digital car key module that is installed in a car to enable wireless data transmission between a car and a smartphone, allowing users to open or lock the car door or start the engine using a smartphone. A driver can use his/her smartphone to oversee the vehicle conditions, including driving distance, fuel efficiency, tire pressure, etc., at a glance as well as control the vehicle.
Users can lend the digital key to another person or allow only specific functions, such as opening or closing the trunk, using a smartphone app. Users don't need to carry a physical key, reducing the risk of losing the key. Further, the smartphone must be inside the car to drive it, reducing the risk of car theft.
As the car sharing and rental services have grown recently, the demand for a digital car key module has increased every year. But the existing digital car key modules had low location detection precision and concerns for low security as they were prone to hacking, etc.
The digital car key module that LG Innotek developed uses the ultra-wideband (UWB) technology, which is a wireless LAN communication technology, and a proprietary algorithm, improving the location detection precision. In addition, the module has increased the security by applying a proprietary hacking prevention technology.
The digital car key module can detect the location of a smartphone five times more precisely than the existing key modules. The module's error range between the actual smartphone's location and the recognition location has been reduced from 50 cm (19.7 inches) to under 10 cm (3.9 inches).