Switch machine simulation device based on railway system

The utility model discloses a point switch simulation device based on a railway system, which simulates the fault of a point switch by using the disconnection of a first relay and a second relay, and simulates the fixed meter voltage and the reverse meter voltage of an indication type point switch in a real state by using a point switch indication circuit. The switch machine action circuit is used for simulating the constant meter voltage, the reverse meter voltage, the constant operation current and the reverse operation current of the action type switch machine in the real action state; the voltage value of the point switch indication circuit and the voltage value and the current value of the point switch action circuit are collected through the fixed meter voltage detection circuit, the reverse meter voltage detection circuit and the current detection circuit, and state simulation and judgment of two types of point switches can be achieved. Therefore, according to the utility model, the mounting and dismou