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The severe test of the new coronavirus is still in front of us, and the people of the whole country are facing the COVID-19 positively, which leads to the delay of resuming work and produces short-term disturbance, causing great losses and short-term disturbance, but will also give birth to strengthen some industries. In order to prevent the spread of the COVID-19 and avoid large-scale movement of people, people are being isolated at home, therefore, online education, remote office, video conference has been widely used under such circumstance.
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Wuhan jiayou! |
Within just two hours, more than 10,000 new cloud servers have been deployed to support the surge in demand; Within two days, the 5G network ,5G medical and health applications, remote consultation, remote ultrasound, remote surgery, emergency rescue, remote teaching, remote monitoring, intelligent guidance, mobile medical care, AI adjuvant treatment and so on will be perfectly applied in this campaign.
At the same time, many indusries development orientation have been changed, the live video of constructing wuhan hospital has gained more than 60 million online watching times, received all concern from the world for the COVID-19 in wuhan.
For the remote areas in our country, doctors are inexperienced ,HD video remote guidance training can be realized to reduce labor costs. For other work scenes such as radiation, infection isolation area and so on. Remote inspection, can be realized thousands of miles away by manipulating medical machinery, probe through high-definition video image return, achieving the examination of patients, and large bandwidth, low delay internet are required of all these situations.
On the one hand, compared to OTN technology, WDM is very critical in transmission,it is a form of multi-optical wavelength multiplexing, so that the communication capacity is greatly increased. Even if the communication capacity of WDM is very large, there are defects in networking ability and supervision ability, as well as the large security risks, so there are few times when only WDM is used in the actual use process.
As for the OTN technology, which is developed based on WDM technology, OTN not only improves the technical level, but also can optimize and upgrade the whole system. On the other hand, compared with SDH technology, SDH technology is mostly used in TDM voice service with small particles in modern electric power information communication transmission system. However, with the rapid development of 4G signal and the arrival of 5G signal, the original SDH technology appear backward, but OTN technology is very efficient, communication capacity is greatly enhanced, which can better adapt to the information transmission in large business volume, and perfectly complete the SDH technology. For example, SDH technology can be used to maintain and adjust information services below 2.5Gbit/s, and OTN technology is used for services larger than 1Gbit/s.
During the COVID-19, school hours were inconsistent.Besides, the geographical difference causes the education quality to differ greatly, the education resources to be unbalanced, it is difficult to maintain the synchronization consistency, but online course can well solve such problems.
Solution scheme
Based on the characteristics of long distance transmission, large transmission capacity and low delay, OTN can fully meet the needs of classroom interaction, audio delay, Catton phenomenon, which can improve the enthusiasm of students and teaching resources outside the school.
Live broadcast, VR and other data transmission delay is less than 20ms, the single wave velocity rate of double fiber can reach 10G-100G, and 80 channel can be expanded.
