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1前言在科技高速发展的今天,人们常用的手机发展到不仅能存储数字电影,厚度还薄于21in。由此可见,火灾报警行业应该比现在得到更好的发展。实际上,火灾报警系统已取得了长足进步,但其发展速度由于各种因素的影响而受到了制约。对于保护生命和财产安全的火灾报警行业来说,人们并
1 Introduction In the rapid development of science and technology today, people commonly used mobile phones developed to not only store digital movies, the thickness is still thinner than 21in. This shows that the fire alarm industry should get better development than now. In fact, the fire alarm system has made great strides, but the speed of its development has been hampered by various factors. For the fire alarm industry that protects the safety of lives and property, people and