通过实践应用证明，该系统实现了实时语音提示功能，并具有控制灵活，接口简单，扩展性强等特点。
It has been proved that the system has the voice warning function and it also has the characteristics of easy control, simple interface and strong extension etc.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
本文简单介绍了系统控制中心端监测数据统计应用部分的功能设计和实现方法。
This article introduced the applied design and realization of monitor data in system control center.
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