Card swiping arming and disarming method and system based on a building intercom system

The invention provides a card swiping arming and disarming system based on a building intercom system. The card swiping arming and disarming system comprises an access control host, an entrance machine and an indoor extension, wherein the access control host is connected to the entrance machine and is used for reading door card information and sending a signal to the entrance machine after readingthe door card information; the door card information and the signal carry a room number, and the room number is in one-to-one correspondence with the indoor extension; the entrance machine is respectively connected to the access control host and the indoor extension and is used for receiving the signal sent by the access control host, establishing a communication connection between the entrance machine and the indoor extension corresponding to the room number according to the signal, receiving an arming or disarming instruction and sending the instruction to the indoor extension correspondingto the room number; and t