GSM Based Authorized Access with Separate User Password Door Lock and Unlock Control System
Unlock security logging door by a GSM application using a unique password entered through the GSM modem. Opening and closing of a security logging door is achieved by using a GSM application. The user can connect and send SMS through GSM modem. This method is very convenient as one doesn't have to get down of their car to open/close the door physically. The GSM module act as both transmitting and receiving unit employs the use of a mobile phone set serving as the communication device between the user at one end and the object of access (i.e. the door) at the other receiving end.