Traffic monitor

The utility model relates to a traffic monitoring device. One host machine is connected with a 486 microcomputer and a printing terminal. The monitoring device is connected with an extended RAM (3) driver, an electronic auxiliary card interface (4), and a running state recorder interface (5). The host machine chip of the utility model can complete the functions of recording the running state in the microcomputer and vehicles and connecting with the electronic auxiliary card. The extended 512KRAM of the utility model is used for storing data. The utility model can read the data in the recorder and the electronic auxiliary card. The utility model can analyze the reason of traffic accidents. The utility model saves and checks the data record. The utility model can go on with manufacturing electronic auxiliary cards of drivers.