介绍了光纤光栅感温火灾探测系统的应用原 理，并重点阐述了用CPLD 设计虚拟MC14499 器件模 块，给出并解释了用Verilog HDL 语言实现的部分程 序和仿真测试结果。-Introduction of Fiber Bragg Grating temperature fire detection system principles, and focuses on the use of CPLD design virtual MC14499 device module, are