Lane departure early-warning system based on OBD and smart phone and early warning method thereof

Abstract

The invention provides a lane departure early-warning system based on an OBD and a smart phone. The system comprises a CAN communication unit and a smart phone part. An input terminal of a power supply module in the CAN communication unit is connected with an OBD diagnostic port and an output terminal is connected with the CAN communication unit; and an output terminal of the OBD diagnostic port is connected with an input terminal of a bus control module. The bus control module in the CAN communication unit is in communication connection with a bluetooth module B in the smart phone part by a vehicle-mounted information processing module and a bluetooth module A; and the bluetooth module B is in communication connection with a smart phone processing module. Two output terminals of the smart phone processing module are respectively connected with input terminals of a display module and an alarm module; and an input terminal is connected with an output terminal of an image collection module. According to the invention, the system can be applied to an automobile after-loading market easily and is connected with a vehicle-mounted OBD diagnostic port directly. Moreover, the structure is simple, the system integration degree is high; the early warning accuracy is high; and the early warning multi-functional effect is realized.

Description

technical field [0001] The invention relates to the field of automobile safety assisted driving, in particular to a lane departure warning system and a warning method thereof. Background technique [0002] In recent years, due to excessive fatigue and negligence of drivers on expressways, the proportion of major traffic accidents caused by vehicles deviating from the lane has increased year by year. According to the statistics of the "Statistical Bulletin on National Economic and Social Development in 2014", the number of traffic accident deaths in 2014 was 34292.34, an increase of 2688.04 from the 31604.3 deaths in 2013, with a growth rate of 8.5%; The rate was 13.46%; compared with 2011, the growth rate was 15.78%. [0003] U.S. road safety agency research shows that: about 50% of automobile traffic accidents are caused by automobiles deviating from the normal driving lane, and lane departure is also regarded as the main cause of vehicle rollover accidents. Some experts ...

AI Technical Summary

Problems solved by technology

Although these systems have basically realized functions such as lane departure warning, but for most low-end and mid-end models that do not have this configuration, there are disadvantages such as high installation costs, changes to the original car line, and low warning accuracy.

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