The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.

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。

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But in the Grex system, vehicles will be able to act as relay stations, bouncing a control signal from the mother ship to the networked submarines over many miles.

但在Grex的系统内，水下机器人将充当一个中继站，将来自母船的控制信号传给连网的其他机器人，这种方式下的传输距离可达到数英里。

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The clock signal provided by Global Positioning System(GPS)is widely used in electric power system for relay protection, SOE (Sequence of Events), fault locating, synchronous sampling and so on.

GPS同步时钟信号已在电力系统的继电保护、事件顺序记录、故障测距、同步采样等诸多领域获得重要运用。

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