Multifunctional sound system and fire alarm monitoring method thereof

The invention discloses a multifunctional sound system and a method for performing the fire monitoring by utilizing the multifunctional sound system. The multifunctional sound system comprises a main control central processing unit (CPU), a storage device, a real-time image processor, a sound box, a control keyboard, a time control device, a first camera and a second camera, wherein the storage device, the real-time image processor, the sound box, the control keyboard and the time control device are connected with the main control CPU; and the first camera and the second camera are connected with the real-time image processor, an environment picture under a fire-free status is defined as a standard picture through a learning status, whether a fire occurs or not is judged by comparing and analyzing the color temperature and brightness of a reference picture and the standard picture, a sound control switch is forcibly short-circuited, an audio interface is switched off, an alarming sound is played, the alarming