13.5 hours of "cloud live broadcast", 32 program production, 25 on-campus cooperation units, 4 locations shooting, 9 technical support teams, more than 150 security personnel, 1,000 interactive gifts, 2.2 million people watched...

　　9月19日，Beijing Institute of Technology is celebrating its 80th birthday，However, due to the epidemic prevention and control requirements，There is no way to organize a mass homecoming of alumni，In order to meet the majority of teachers, students and alumni concerned about the enthusiastic expectations of the school celebration，The school innovatively uses a combination of offline activities and online "cloud school celebrations"，In order to let every worker no matter where in the world，Can feel the warm atmosphere of the school celebration in the "cloud"，Understand the achievements of the school，Celebrate the birthday together，Wish you all the best。Of these, one game 13.The five-hour "cloud live broadcast" has become a "major event", and a large number of program planning and production, multi-location multi-camera shooting and remote live broadcast technical scheme design, etc., have made this "major event" a "tough battle".。

"Super long live broadcast, 32 programs, carefully produced, precise connection!"

　　"How to make the teachers, students and alumni who pay attention to the school anniversary gain something through the video?？How to show the most beautiful, the best and the most friendly Beijing Institute of Technology through the screen？..."In the face of an "ultra-long" "cloud live broadcast", one problem after another has become the focus of the work team's reconsideration。

　　According to the school's deployment, the live broadcast of the 80th anniversary of the school should last from 8 a.m. to 9:30 p.m., achieving 13.Five hours of uninterrupted broadcasting, which is the first time in the history of school publicity work, is not small。

　　"Have something to say and make every minute count!"In the face of such a long broadcast time, the live broadcast work first established the concept of quality first, and only high-quality programs are the basis and guarantee of the success of the school anniversary live broadcast。On the premise of quality, in mid-July, the school quickly organized professional forces to fully launch the preparatory work for live broadcasting, and coordinated many units of the school to carry out the interview shooting work for nearly two months。

　　"Treasure Hunting School History Museum", "Old Tank Odyssey", "Laboratory Story", "My favorite taste of North Li"......In order to enable the live content to fully show the glorious history of the school for 80 years，Show the first-class image of the school in the new era，The live broadcast work team carefully designed eight live broadcast sections: Overture, celebration, root finding, blessing, mission, first-class, reunion, and dream，Produced 32 programs，From reviewing school history to demonstrating first-class development achievements，Coordinate with 25 units，More than 20 meetings were held，The program was produced with high quality in a short period of time，It has laid a solid content foundation for all Beili workers to perfectly present "cloud live broadcast"。

　　"How do you transition between blocks？How to deal with uncontrollable end time of large events？"Live broadcast is not a simple list of programs, how to make all programs and large-scale events live between the accurate connection, so that" cloud live broadcast "integrated, which has become the focus of the live broadcast team?。

　　In this school anniversary live broadcast, the live broadcast team invited alumni hosts to appear, selected the school's indoor and outdoor representative scenes, designed and produced 7 host links, while skillfully connecting different live sections, but also demonstrated the school's spiritual culture, school strength and other first-class style。In addition, the live broadcast team also accurately designed the duration of the program and precisely arranged dozens of programs。

　　It is worth mentioning that because the large-scale activities on the school anniversary need to be broadcast live, there is great uncertainty in the end time, which will have a great impact on the broadcast programs already made. The broadcast team not only makes a fine broadcast plan, but also cleverly designs buffer programs and alternate plans。In the actual live broadcast process, the live broadcast team is stationed in the studio car throughout the whole process, pays close attention to the broadcast progress of each program, maintains close communication with the front shooting team, and makes dynamic adjustments at any time according to the actual situation to ensure that the live broadcast is foolproof and smooth。It can be said that on the school anniversary 13.Behind every second of the five-hour broadcast was the undivided attention of the entire team。

Shooting in many places, remote live broadcast, collaborative efforts inside and outside the school to ensure

　　"Network Settings are complete, the speed is normal" "picture transmission is normal" "live stream pushing is normal" "All stations enter the live stream state"......From September 17 to 19, the technical support information in the school's celebration Day live work group has been uninterrupted。

　　In addition to the broadcast of a number of elaborate programs, it is more important to achieve real-time shooting and live broadcasting of the "Red Education Road" forum, the University anniversary commemoration conference, the University President's Forum and the university anniversary party。However, as the various activities were held in the central teaching building, east playground, Friendship Hotel, Liangxiang North Lake four places, the scope involved both inside and outside the school and two campuses, which put forward extremely high technical requirements for shooting and live broadcasting work, the challenge is not small。

　　After careful planning，The live broadcast team carefully designed the shooting and live broadcast program，Organize and coordinate 9 units inside and outside the school，Formed a technical support team of 150 people，Organize a professional studio car to enter the school，Set up the school celebration day live station in the east playground，Through the network, the image transmission equipment is used to transmit the image and sound signal of each shooting location back to the studio car，The program is produced by the studio and the live content is streamed to the Internet for broadcast。In order to ensure smooth transmission, the live broadcast program is also designed with multiple guarantees, not only the wired and wireless dual transmission mode is set up for the image transmission equipment, but also the live broadcast backup equipment is set up at the event site, so that in case of transmission problems, it can be directly converted to the on-site stream Internet to ensure the smooth broadcast。

　　In order to ensure the smooth live broadcast work, the live broadcast team carried out technical testing several days in advance, found and eliminated problems in advance, conducted line demonstration, construction and testing on site, and practiced cooperation in each link。It is worth mentioning that in the process of live broadcast of the school anniversary day, the campus network realized high-speed and stable transmission of signals between the two campuses and inside and outside the school, and provided optical fiber and gigabit switch protection for the network broadcast。

　　Under the joint efforts of all staff inside and outside the school, the school celebration day 13.The 5-hour live broadcast achieved smooth broadcasting, and the live shooting of large-scale events achieved good results, successfully achieving the established work goals。

Matrix release, innovative interaction, 2.2 million people followed

　　"Official website, official blog, official Shake, official B station, CCTV News, People's Daily, Learning Strong country, Guangming network..."As a live webcast，The school carefully selected 14 broadcasting platforms with high attention, strong communication and stable operation，A new media platform operated and maintained by the school itself，There are also central mainstream media platforms。

　　Although, watching the live broadcast only needs to easily click the mobile screen, but behind the smooth display of each live broadcast platform, the work is not easy。The live broadcast team not only needs to contact the platform one by one to confirm before live broadcast, but also needs to prepare the corresponding live broadcast "materials" according to the platform's live broadcast requirements, and conduct live broadcast technology testing and docking in advance。In addition, the live broadcast team also organized more than 40 live broadcast volunteers to monitor and maintain the entire live broadcast。

　　"Virtue to clear reason, learning to seiko, unique tide, create the future..."In the live broadcast of the school's celebration day on September 19, such "password" from time to time brushed the screen。In this school anniversary live broadcast, in order to further improve the viewing effect and expand the impact, the live broadcast team innovatively planned to carry out live interactive prize sending activities。

　　During the live broadcast throughout the day, the award acceptance password will be released in 8 periods. Teachers, students and alumni watching the live broadcast will have the opportunity to obtain a copy of the school celebration cultural product as long as they pay attention to the newly released password and accurately reply the password in the official wechat background at the first time。To this end, the live broadcast team not only designed a series of passwords around the school anniversary and the school's spiritual and cultural system, but also prepared 1,000 prizes based on the outstanding cultural achievements such as the school anniversary culture series to give back to teachers, students and alumni。In the end, this idea not only improved the live viewing effect, but also effectively guided the majority of teachers and students and alumni to thank and bless their Alma mater。

　　According to preliminary statistics, on September 19, through 14 network platforms, a total of more than 2.2 million people watched the live broadcast of the school's celebration day online, and more than 20,000 messages were left behind to participate in the activity on the official micro account。"Cloud live broadcast" has received the warm attention of teachers, students, alumni and all sectors of society。

　　The complete success of this "cloud live broadcast" not only enhances the influence of the school celebration, but also opens a new situation and a new model of the school's publicity work。In the future, the campus live broadcasting work mode will also provide more powerful guarantees and supports for the development of schools。