ABSTRACT:
The “Key and the Lock” system which we have being using from
many years is nowadays inevitable for the security purposes. Many “key locks”
have evolved along these years. Change is the only thing which is going on
without change in this universe! The Double Security Multi Access (DSMA) system
is the electronic “Key and Lock” system which we have developed for advanced electronic
security in the areas where the traditional “key locks” are used. As the name
indicates, this is a double security system with the advantage of opening up
the security in multiple ways. In
