The present invention relates to communication method, communication system, communication manage server and communication control device using public network as virtual special network.

本发明涉及将公众网络作为虚拟的专用网络使用的通信方法、通信系统、通信管理服务器以及通信控制装置。

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The device with global positioning system (GPS) localization and communication with monitor and control center on construction machinery is a key equipment for construction machinery group management.

智能化工程机械的GPS定位与监控中心的通信装置是实现工程机械机群化管理的关键装置。

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Network interface unit (NIU) is an interface device between the control computer and the communication network.

网络接口单元（NIU）是控制计算机与通信网络进行交互的一种接口设备。

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Finally, the security gurus took a device popular in the US, and used non-encrypted ethernet communication between the terminal and other peripherals to hack into the payment device and take root control.

ENGADGET: Security experts hack payment terminals to steal credit card info, play games