本系统可以实现多路温度信号采集与显示，可以使用按键来设置温度限定值，通过进行温度数据的运算处理，发出控制信号达到控制蜂鸣器和继电器的目的。
The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.
在多点温度巡回检测系统中，多路切换部件干簧继电器接触电阻的变化是影响系统精度的主要因素。
In multiple-channel scanning thermometrical system, the change of connecting resistance of tongue relay is the main factor which influences the system precision.
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