Traffic accident Bluetooth early warning device for extreme weather of expressway

The utility model discloses a Bluetooth early warning device for traffic accidents in extreme weather of expressways, which comprises a detection part, an early warning part and a power supply part, and is characterized in that the detection part is composed of a vehicle safety airbag system connecting device, a manual control device, an SKB501 Bluetooth serial port communication module and an STC89C52 single chip microcomputer; the early warning part is composed of an SKB501 Bluetooth serial port communication module, an STC89C52 single-chip microcomputer and a sound-light alarm module. The power supply part is composed of an automobile lithium battery and a lithium battery charging module, and long-time continuous operation of the Bluetooth early warning device can be guaranteed. The beneficial effects of the utility model are that the Bluetooth early warning device for traffic accidents in extreme weather of expressways has the advantages of simple processing, low cost, continuity, stability, energy conser