Pedestrian anti-collision early warning system and early warning method thereof using smartphone

Abstract

The invention relates to a pedestrian anti-collision early warning system which comprises a vehicle-mounted terminal and a pedestrian smartphone, wireless communication is conducted between the vehicle-mounted terminal and the pedestrian smartphone through a wireless communication module, a positioning unit and an alarm unit are embedded in the vehicle-mounted terminal, and a GPS module and an alarm module are embedded in the pedestrian smartphone. The invention further discloses an early warning method of the pedestrian anti-collision early warning system using the smartphoone. According to the pedestrian anti-collision early warning system and the early warning method thereof using the smartphone, through the wireless communication, the vehicle-mounted terminal acquires the longitude and latitude, the speed, the ground heading angle and altitude height information of the pedestrian handheld smartphone in real time, calculates and judges the position relation between a vehicle and a pedestrian according to vehicle positioning information and the motion state, and further judges whether collision danger exists or not, and meanwhile, the vehicle-mounted terminal synchronously sends collision alarm information to the smartphone through the wireless communication,, and achieves alarm to the pedestrian in a sound and image mode.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a pedestrian anti-collision early warning system and an early warning method using a smart phone. Background technique [0002] With the rapid development of the transportation industry, the number of road vehicles has increased sharply, and the road traffic safety situation has become increasingly severe. In the case of right-angle intersections, sharp turns, nights, and rainy and snowy weather that reduce the driver's sight distance or blind spots, traffic accidents caused by the driver's lack of time to respond have become the focus of road traffic safety. The personal safety of pedestrians poses a great threat. As an important road traffic participant, pedestrians walk arbitrarily and change directions, which brings great hidden dangers to road traffic safety and easily leads to traffic accidents. [0003] In recent years, the anti-collision warning system for pedest...

AI Technical Summary

Problems solved by technology

However, the shortcomings of the above-mentioned pedestrian anti-collision warning system are: on the one hand, sensors such as radars and cameras have limited detection distances, and there are obvious detection blind spots, and night, rain and snow weather affect its detection effect on pedestrians; on the other hand, The above-mentioned pedestrian anti-collision system is only an early warning to the driver. In fact, with the popularity of smart phones and the enhancement of functions, many pedestrians operate their mobile phones during walking. When a vehicle approaches, it is also necessary to give pedestrians a synchronous alarm.

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