Recently, a large data mining and knowledge management Key Laboratory of Chinese Academy of Sciences published "China's online children's English education White Paper on Youth 2018" shows that in 2018 the Youth in our online English 1-on-1 has been paid subscribers exceeded 100 million people, is expected to 2019- 2022 It will be an annual growth rate of 30%. Meanwhile, after five years of development and shuffling, online education market brand polarization evident, paying customers accelerate gather to head companies. Which, VIPKID platform accounted for 67.2% of the market share gap with second-tier is gradually widening.
"Such a large-scale and perfect protection line fluency while online courses are unique in the history of education cases." - June 2018, VIPKID won "the biggest online language course" Guinness Book of Records
Data from VIPKID show that the current, which has more than 600,000 students, 70,000 North American teacher. Established five years ago, the number of students VIPKID of geometric proportion doubled, behind its rapid development, in addition to high-quality content on the platform itself to rapid innovation and iteration control, as well as the technology behind brought accelerate.
"Compared with a traditional education, online education teacher at the line richer content and resources, and time and transportation cost is almost zero. More importantly, children can have a stronger sense of participation in the process of online learning, which kinds of learning deeply involved will lead to better learning results. "VIPKID technology vice president Zhang Yanjing pointed out that although education is a company, but VIPKID keen to capture the role of technology to drive a new era of education. "Let the children use VIPKID in the learning process, enjoy the fun and in the 'enjoyment' behind the process, relying on the 'non-inductive butt' in time and space - without delay, no Caton."
Seems like a simple request, but at the same time to protect more than 160 countries worldwide, more than 6 digits fluency large number of foreign teachers and students online use, is undoubtedly a huge problem. "Online education better than ordinary video and broadcast services, to make the distance on the client ignoring space, go to achieve 'seamless' ends of the video." VIPKID senior architect Zhou Yi said with a smile, VIPKID technology there is a "pursuit" company of. "If during the course frequently Caton, low quality, sound words out of sync, it will greatly affect the user's learning effect, especially easily distracted children's groups."
June 2018, successfully won the "largest online language courses (largest online language lesson)" Guinness Book of World Records as the landmark event VIPKID to solve this problem. Whether people are super smooth line across the ocean level protection, or how long suction children's attention, for online education industry, is a huge challenge. Eventually, the number of successful challenges to reach 18,159 this challenge.
Such a large and perfect protection line fluency while online courses are unique in the history of education cases. In fact, it is this strong technical clout, support VIPKID provide smoother for students, enjoyable online learning experience.
"Global cloud networks through high-quality transmission, calculating the nearest edge of the access, and the second level scheduling sd-wan, VIPKID global delay done within 200 msec, to achieve 99.99% network availability." - Senior Network Architect Belts introduction VIPKID smooth technical secrets
Behind the glory of the Guinness Book of Records, it is the great challenge of network technology. According to Zhou Yi introduction, support behind the Guinness Book of Records, relying on three core technology.
Core technology 1: Global Cloud Networking high-quality transmission
Complex network operators around the world, yet easy to domestic public network congestion loss, across the oceans of data transmission are more vulnerable to jitter, packet loss live Caton even dropped. To solve this problem, VIPKID conducted jointly with Tencent cloud global distribution, cloud-based networking to build a global private network transmission quality. Leveraging Tencent cloud intelligent network-wide scheduling and routing capabilities to achieve between any two points within the shortest path to network interoperability, it changed the issue and bypass the public network link congestion.
Core Technology 2: Calculation edge nearest access
In order to enhance national coverage, VIPKID and deployed jointly with Tencent cloud Jinan, Hangzhou, Wuhan and other cities edge computing power, not only to provide BGP multi-line coverage to address the nearest access and small operators access problems and provide special network traffic back to the source, to achieve the double guarantee coverage and quality back to the source. By edge computing, network access capabilities closer to the user's area, enhancing the overall user experience second and third tier cities, significantly reduced Caton, dropped calls and other problems.
Core technology 3: TE-second scheduling
Light has an extensive global network and cloud computing power of these two hard edge strength is not enough, online educational interactive video network quality is extremely demanding requirements, in order to provide a higher quality video experience, VIPKID from a research-based global public cloud sdn The internet.
First, collect second-class network quality between each node global perception data, real-time traffic portraits, and choose the best cloud access point; Second, Tencent cloud global cloud-based transmission network special network, build VIPKID exclusive Overlay network; Finally, use a large cloud real-time data analysis, combined flow portraits and traffic engineering capabilities to achieve the-minute traffic scheduling sdn based on 1-on-1 significantly improve the user experience online English teaching.
Data show that the above-described three core leveraging technology, VIPKID global delay done within 200 msec, to achieve 99.99% network availability.
Way of tackling VIPKID technology has not slowed down, on the contrary, in 2019 it will continue to jointly Tencent cloud services will migrate to ipv6, continue iterating more feature-rich traffic scheduling capabilities in ipv6 network and traffic engineering package to business lines, tenants do business in different levels corresponding to different scheduling strategies, achieve differentiated services costs, differentiated service quality. Meanwhile, overseas coverage, VIPKID will deploy Tencent cloud BGP ANYCAST access capability, to achieve the nearest access to overseas customers, enhance network quality, providing better quality of education for children with technology.