范文编号:JD792 范文字数:7761,页数:23 基于单片机的火灾报警器 摘要:设计了火灾自动报警系统,该系统通过一定的方式向火灾报警控制器发出火灾报警信号,火灾报警控制器收到报警信号后,立即发出声光报警。本设计的检测装置由离子感烟传感器UD-02和与之配套的专用集成电路DQ-295等组成,通过对现场的火灾参数采集,模/数转换,地址编码,然后传送给单片机,由单片机进行相应的运算处理,判断现场是否发生火灾。这种信号处理方式将单片机用于火灾模式判别,可以根据火灾发生时,火灾参数的发展变化规律来识别真假火灾,不同于传统单一的定值判别方式,有利于提高火灾判别的准确性。
Abstract: Designed automatic fire alarm system, which through a controller to issue a fire alarm fire alarm signals, fire alarm control signal received by the police immediately after the issue of sound and light alarm. The design of the detection device by ion sensor smoke UD-02 and a complete set of application specific integrated circuit components, such as DQ-295, through on-site collection of the fire parameters, A / D converter, address coding, and then transmitted to the single-chip by the corresponding single-chip processing to determine whether the fire scene. This single-chip signal processing for fire model will determine , based on when the fire broke out, fire development and changes in the law of the parameters to identify true and false fire, different from the traditional valuation of a single judge of the way and will be beneficial to determine the accuracy of fire sexual.
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