In order to achieve real-time remote monitoring in industrial wastewater discharge, an intelligent monitoring system is designed to transmit information by DTMF signal through telephone network.

为了实现远程实时监测工业污水的排放，研究设计出一种通过电话网络传输DTMF信号进行远程控制的智能监测系统。

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Remote monitoring of vibration control system is achieved by the application of virtual instrument technology and network technology to real-time vibration control system.

将虚拟仪器技术、网络技术应用到实时振动控制系统中，实现了对振动控制系统的远程监控。

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This paper presents a remote video monitoring system based on PSTN, it can carry real-time video, audio and all kinds of monitoring parameters.

介绍了一种基于公共交换电话网（PSTN）的远程视频监控系统，它能通过PSTN实时传送现场的图像、声音及各种监控参数。

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One improvement, suggests Mr Sokolski, would be to install more real-time remote-monitoring cameras, so inspectors can check more reliably that materials and equipment are not being diverted to covert use.

ECONOMIST: Troubling flaws in the world's nuclear safeguards