Coreaiot is the world's leading manufacturer of location-based devices，offering revolutionary real-time locating system (RTLS) base on Bluetooth Angle-of-Arrival (AoA) technology. Coreaiot tracking system has an accuracy of up to 0.1m, which is 10 times higher than traditional Bluetooth technology. Coreaiot positioning system is widely applied in manufacturing, logistics&warehouse,smart retail, smart buildings,shopping malls, supermarkets, exhibition venues, .ect. With an open ecology, Coreaiot is compatible with protocols from Bluetooth 4.0 to 5.1, and can access all Bluetooth Low Energy terminals, such as mobile phones, wristbands, watches, earphones, anti-lost devices, cars etc, so that every smart terminal can be located, tracked, and navigted in indoor and outdoor spaces. Base on the precise RTLS technology, Coreaiot location system realizes time and space perception and interaction between smart terminals and the world.