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In view of the fact that most of the current traffic accidents are caused by drunk driving, illegal driving or sudden physical illness, an intelligent safe driving detection system is designed; the system uses Raspberry Pi as the core with intelligent Watch, APP, alcohol detection module; the system can monitor the driver"s alcohol concentration, the driver"s illegal driving behavior, and the driving health status, etc., and display it visually through the mobile APP; after testing, the entire system can be used in driving. The stable operation on the way can meet the needs of real-time monitoring of the driver"s driving behavior and health information.