Communication test module interface switching device of dynamic detection vehicle

The utility model discloses a dynamic detection vehicle communication test module interface switching device. The device comprises a change-over switch; a switching control circuit module; the serial port switching circuit module is used for selecting one serial port output to output a communication service quality test signal to the communication detection system controller when receiving the communication detection system test signal; or when the test signal of the automatic detection subsystem is received, two paths of serial port outputs are selected to output the communication service quality test signal to the automatic detection subsystem controller; the Ethernet switching circuit module is used for selecting one path of Ethernet output to output a wireless field intensity coverage test signal to the communication detection system controller when the communication detection system test signal is received; or when the test signal of the automatic detection subsystem is received, two paths of Ethernet ou