Visit the 79th China Educational Equipment Exhibition and experience Ruijie's unique "light", "cloud" and "classroom"

On April 23, 2021, the 79th China Educational Equipment Exhibition (hereinafter referred to as "Educational Equipment Exhibition"), hosted by the China Educational Equipment Industry Association, opened grandly at the Xiamen International Convention and Exhibition Center. As a leading domestic ICT infrastructure and industry solution provider, Ruijie Networks has been deeply involved in the education industry for more than 20 years and has participated in the exhibition with innovative scenario technologies and blockbuster product solutions for many consecutive years.

As the "weather vane" and "barometer" of the educational equipment industry, the Education Equipment Exhibition is an authoritative platform that shows market trends to visitors. With the trust and support of the majority of educational users and partners, the Ruijie Networks exhibition area has become one of the brand exhibition areas that visitors must visit at the Education Equipment Exhibition. This year, Ruijie Networks has presented more exciting and different educational concepts and program content to primary and secondary education users. At the booth C3011 in Hall C3, Tian Shulan, former member of the Party Leadership Group of the Ministry of Education and former head of the Discipline Inspection Group of the Central Commission for Discipline Inspection in the Ministry of Education, and Li Xingzhi, executive vice president of the China Education Equipment Industry Association, and other leaders also came to inspect and experience, and the atmosphere was particularly warm.

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What kind of content is so attractive?

[Fiber-optic classrooms] A different all-optical network for primary and secondary school campus networks

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With the advancement of Education Informatization 2.0, school business has entered an explosive growth. The number of information points in a single classroom has increased significantly, from 1-2 to 6-12 information points, including smart blackboards, regular recording and broadcasting, electronic class signs, wireless, Internet of Things, digital broadcasting, etc.; the increase in information points has led to the deployment of a large number of network cables, which has caused problems such as high pressure on the bridge, high cost, unsightly appearance, and difficulty in subsequent business expansion; due to the bandwidth limitation of the network cable, the school's commonly used network cables only support gigabit transmission speed. In the context of Wi-Fi 6 speed exceeding gigabit, the bandwidth cannot be smoothly upgraded.

Ruijie Networks' simplified Ethernet all-optical network solution, which has been deployed in dozens of primary and secondary schools in China, is the next-generation all-optical network for primary and secondary school campus networks. Compared with the traditional GPON all-optical network, the same point is that optical fiber replaces copper cable to achieve fiber access to the room. The overall simplicity and beauty, flexible business expansion and smooth upgrade. The difference is that the simplified Ethernet all-optical network uses Ethernet technology to achieve fiber access to the room, integrating the high bandwidth and mature technology advantages of Ethernet.

(1) 1 network + 2 flexibility + 3 simplicity, creating a unique all-optical network value

The optical fiber is pulled from the core computer room to the all-optical convergence switch in the building, and then the 1:1 optical fiber enters every room in the school, and minimalist optical switch equipment is deployed indoors. The solution is a network with unified protocols and multiple services, without increasing the technical threshold, and flexible business division! After the minimalist optical switch enters the room, subsequent expansion is carried out indoors, which makes the business expansion flexible and the classroom bandwidth upgrade flexible. At the same time, security and operation and maintenance are considered as a whole, so as to achieve "minimal security", "minimal access", and "minimal operation and maintenance". The equipment entering the room supports 0 configuration online, plug and play, and minimalist access and operation and maintenance can be completed in three steps. Minimalist security is aimed at the problem that terminal security access is troublesome and security authentication cannot be enabled in the context of a large number of dumb terminals such as cameras, Internet of Things, and electronic class signs in the campus network. "Minimalist security" can automatically distinguish the terminal type. The human terminal enters the account and password for real-name authentication access, and the dumb terminal approves access to the network with one click, which is both safe and minimalist.

(2) Exclusive bandwidth superior to GPON, making teaching experience no longer restricted

The current GPON solution is to split the light through a splitter and then enter the room. Multiple ONUs share the bandwidth, and there is still a bottleneck in the performance of horizontal traffic. In the post-epidemic era, schools frequently carry out a large number of audio and video services. Under the GPON solution, it is very likely to encounter problems such as reduced bit rate of surveillance video, freezes in online classes, and unclear sound. The minimalist Ethernet all-optical solution realizes exclusive bandwidth and linear forwarding, without any performance bottleneck.

The simplified Ethernet all-optical network solution organically integrates the technical advantages of Ethernet and all-optical network. It can effectively solve the problems of weak scalability of traditional Ethernet services, complex launch of new services, long construction cycle, and complex maintenance caused by many weak current devices. At the same time, it avoids the bandwidth performance bottleneck brought by the use of GPON passive splitting, increased technical thresholds, troublesome equipment and personnel authentication and access, difficulty in equipment binding and expansion, and difficulty in maintaining the second network.

【Campus on the Cloud】Three engines integrated to achieve full cloudification of campus terminals

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In the past two years, with the popularization of the new curriculum reform, the main scenarios of terminal applications in primary and secondary schools, such as computer classrooms, English listening and speaking rooms, and teacher offices, have changed greatly: first, the boundaries of the courses carried are expanding, and second, the number of applications carried is increasing. The boundaries of teacher offices are also expanding under the promotion of Internet + education. These changes have brought new challenges to the cloudification of digital terminals in different scenarios of primary and secondary schools.

In order to help users realize terminal cloudification using different technology engines in different application scenarios in primary and secondary schools, Ruijie Networks has delved into the scenarios and acted according to needs, launching a new generation of cloud desktop that integrates three engines.

(1) Computer classroom, highly adapted to the higher requirements of Win10 operating system new curriculum reform application software

Based on the original "image management" plus "self-developed teaching management software" to solve the inherent problems of "difficult operation and maintenance of computer room terminals" and "difficult student control and classroom interaction" in computer classrooms, the Cloud Classroom 5.0 solution has achieved value enhancement with high performance and easy scalability. The high-computing power cloud server + ARM terminal enables a single cloud server to meet the needs of 60 student machines to concurrently operate the new curriculum reform application software under the Win10 operating system, supports server hyper-convergence deployment, and meets future expansion.

(2) English listening and speaking computer room, "three highs and two strongs" comprehensively improve the application experience.

In view of the high requirements of English listening and speaking classes on human-computer dialogue, voice quality, and test stability, and the high requirements of English listening and speaking teaching and testing software on hardware compatibility, Ruijie Intelligent Language Listening and Speaking Solution provides the core value of "three highs and two strengths".

High fidelity, ensuring high fidelity of voice quality, the effect is the same as PC; high reliability, even if the network is disconnected or the server fails, the test business can still proceed smoothly; high security, the uniquely designed data backup mechanism can ensure the security and traceability of test data. At the same time, powerful simplified operation and maintenance capabilities can help teachers simplify the deployment of the test room environment; strong combination, with the industry-renowned professional English listening and speaking teaching and testing platform to form a strong mutual testing and mutual recognition of solutions. (3) Qingyun cloud office, making work easier

The Light Cloud Office Solution does not require the purchase of servers. The servers are deployed on the public cloud and managed in the cloud through the public cloud model, making the architecture lighter. It enables easy terminal launch, easy fault recovery, easy remote maintenance, easy asset statistics, and easy security traceability. When the school terminal system fails, the cloud terminal can be managed as long as it can connect to the Internet, whether on campus or off-campus.

【Three Classrooms】Real-time interaction, restore the real classroom

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In the application scenarios of the three classrooms, there are common problems such as video freezes and asynchrony between audio and video. Teachers are very tired during classes, the teaching process is not interactive, and remote students have no sense of participation. These problems have greatly affected the teaching quality. At the same time, the existing solutions on the market are very heavy for customers. If you want to realize the normalization of the three classrooms, the investment is high and the difficulty is high.

Ruijie Networks provides three classroom solutions:

(1) Ultra-low latency and layered transmission technology create an immersive interactive experience

Through SVC flexible layered coding technology, courseware, audio, and video are transmitted in layers. Even if there is network jitter, the resolution can be adjusted adaptively to ensure smooth audio and video transmission, allowing remote students to participate in the classroom immersively. The delay of audio and video transmission is as low as 300MS, which is equivalent to the experience of daily telephone calls.

(2) Rich interactive teaching scenes make the classroom full of fun

It provides a series of interactive functions such as watching courseware, watching teachers, students watching each other, remote synchronous blackboard writing, homework screen projection, one-click live broadcast, same-screen annotation, photo sharing, etc., so that teachers and students in both places can fully participate, communicate and interact.

(3) “Four-pole” light mode helps normalize on-demand applications

The "extremely simple" hardware architecture eliminates redundant hardware such as MCU and central control, and is green and economical. The "extremely light" deployment and operation and maintenance, the software is directly installed on the all-in-one machine, reusing existing equipment; free public cloud services, no need to maintain local servers. The "extremely easy to use" software platform has a very simple software interface and is easy to use; there is no learning cost, and teachers love it. The "extremely low" bandwidth usage can be accessed through ordinary Internet, and open classes can be held across regions, and multi-party teaching and research can be carried out anytime, anywhere. The "four-pole" light mode not only solves the problems of hardware redundancy and high configuration and low use, but more importantly, it makes the three classrooms green and economical, easy to maintain and easy to use, and helps the three classrooms to be implemented in a regular manner.

Overall, Ruijie Networks' participation in this exhibition once again used its innovative strength to bring different "light", "cloud" and "classrooms" to education users. We believe that innovations based on scenarios will help resolve the problems faced by "fiber optics in the classroom", "campus on the cloud" and "three normalized classrooms", and will also inevitably bring about improvements in the efficiency of education information management and application experience.