浅谈机房传输设备拓扑结构网型改造对广播电视传输播出的保护作用

广播电视信号传输系统的环网保护能力作为保证传输业务稳定、可靠的主要保障手段,广泛地应用在各类传输网之中。通过利用SNCP技术,采用信源主备双系统,完成机房设备网型拓扑结构改造,有力保障了广播电视信号安全传输播出。

流媒体线上论坛音频解决方案

本文介绍了疫情防控背景下流媒体线上论坛音频系统的设计思路,从音频系统整体架构、播出系统与监听、ZOOM云连线、延时调整等方面具体阐述了解决方案。

The Conceptual Design Experience of Sea-Going Ships with Alternative Propulsion System, Equipped with Dual-Mode Contra Propeller

The paper presents a technical solution which provides energy saving at full speed, as well as duplication of screw propeller and main propulsion system incase it＇s out of order. The description of the corresponding device, designed for transport refrigerator ship, is shown as well as its location on board. Value of energy saving from the use of contra propeller is estimated. The results of the assessment required power to move the ship at low speed by the action of the contra propeller operating in the reactive mode are demonstrated. It is shown, that the ship equipped with the proposed device will get the additional class notation related to the redundancy or duplication of the propulsion system of Russian Maritime Register of Shipping.