In the kit Advanced access controlled lock system, Home security has been a major issue where crime is increasing and everybody wants to take proper measures to prevent intrusion. In addition there was a need to automate home so that user can take advantage of the technological advancement in such a way that a person getting off the office does not get melted with the hot climate. The kit is aimed at developing the security of Home against Intruders. Here there is password based door lock system. As the user enters the correct password, the door gets opened for a short interval of time.
In the kit Advanced access controlled lock system, this interval can be changed according to the requirement of the user. Is some unauthorized person tries to open the gate and enters the wrong password for three times consecutively, the alarm gets triggered and a SMS is sent to the registered user. The user can take any proper action.
The SMS can be sent to any mobile user of any service provider with no or a minimum charge. This system is designed using a GSM modem. The GSM modem is configured as a transmitter. A particular format SMS is being sent from the transmitter mobile to the registered/authenticated user. The advantage of SMS based control is as follows, this is cheaper and the SMS can be retained in the network even though the network is busy for some time. The SMS can be written through internet without any cost. There is a keypad to open the gate. If any unauthorized user wants to access the gate, then a SMS will be sent to the registered user if there is sequence of three times wrong password.
BLOCK DIAGRAM OF GSM BASED ACCESS CONTROLLED LOCK