The project is designed to achieve control over the railway level crossing gate through SMS sent by the station master or driver. Opening and closing of railway level crossing involves manpower, which could be often erroneous leading to accidents. The proposed system rules out the need of any human involvement at the railway level crossing. This system involves opening and closing of the level crossing gate with help of an SMS.
A GSM modem is interfaced with the system. When the driver or station master sends an SMS “close” (when the train is approaching at the level crossing) to the modem then the microcontroller interfaced to the modem sends an output signal which activates a mechanism to switch on the motor to close the gate. To open the gate, another SMS “open” needs to be sent for the microcontroller to open the gate with help of motor driver IC. In this project we use a microcontroller of 8051 family, and the input to it is a GSM modem which receives the SMS from the user. The output to microcontroller is given to a motor through a motor driver IC for required operation. The status, whether the gate is open / close is displayed on an LCD display interfaced to the microcontroller.
Further the project can be enhanced by sending an acknowledgement to the sender about the status of the gate via SMS.