1. School profile:
Beijing Twenty High School was founded in 1951. The campus covers an area of ​​123 acres and has a construction area of ​​32,000 square meters. There are more than 120 teaching classes and more than 4,000 students. The school always pursues first-class teaching quality. He has excellent grades in the middle and high school entrance examinations every year, and has been awarded the Excellent Teaching Quality Award by the Haidian District Education Committee for many times. Olympic 'Tongxin Knot' School "," Beijing TI Modern Mathematics Teaching Technology Experimental School "," Haidian District Education Modernization Pilot School "," Beijing Advanced School of Elementary and Middle School Information Work "," Advanced Unit for Experimental Teaching Popularization "," Haidian District has carried out advanced schools for scientific and technological activities for twelve years in a row â€, and“ Beijing Primary and Middle School Science and Technology Activity Demonstration School â€. The school consists of South Teaching Building, North Teaching Building, Comprehensive Building, Experimental Building, Dormitory Area, Restaurant, South Square, North Sports Ground, etc.
2. IP broadcast technical requirements:
1. Can play music ringtones from class to class, the ringtone playlist is less than 10 sets, for different broadcast ringtone needs, music ringtones can be customized.
2. The requirements of the North Building, South Building, Comprehensive Building, and Experimental Building can be addressed to each classroom, and can be combined in any grade and floor.
3. All corridor requirements can be controlled to each floor, and through the broadcast main control center, the teaching area and office area of ​​each corridor can be fixed and partitioned, and can be arbitrarily combined.
4. For different grades and different areas, at least 20 sets of audio sources can be played simultaneously. Used for different grade exams and announcement announcements.
5. The hardware offline work sub-control center, no less than 6 sets, is mainly used for the management of leaders and supervisors, and at the same time can realize the authority management. There is no limit to the software sub-control center, and each grade department designs a set for the teachers to manage the attached classrooms without leaving the office.
6. The sports field must fully consider the reality of the open area, and the design of the sound column should reduce the echo feedback. It can independently control the north and south sports fields.
7. The distance between the school branch and the main school is 20 axioms. The branch school is required to be an independent broadcasting system. It is also possible to perform unified broadcasting management in the main control room of the school.
8. The overall system architecture requires that the main structure is IP network access and management. The sports field part requires the combination of analog transmission and IP network broadcasting. The design standard should achieve the function of leading technology, stable equipment, and flexibility to meet the three-in-one functions of campus broadcasting, teaching applications, and four or six level fixed-point examination room tasks.
3. The effect achieved:
1. Sub-control center
Leader's speech: hardware network paging microphone. It can target as few as one specific class, up to the whole school, and even flexibly select areas for IP network speech.
Note: The leading workstation can be used as a campus radio. The construction of campus cultural enterprises through this set of IP broadcasting system, can perform regular and fixed broadcast.
Teacher sub-control: The pay-control client can meet a variety of teaching applications, such as the teacher in charge of the class is only responsible for the teaching of the class. The grade director may only be responsible for the broadcasting of this grade. Can broadcast the content in advance, compile the curriculum, and play or broadcast regularly.
2. Background music plays regularly (upper and lower class bells, background music).
4. The overall technical design of the school:
1) The campus broadcasting system should be built on a digital IP network platform and must have good scalability;
2) Campus broadcasting requires a computer-operated broadcasting system to realize the unattended campus digital automation broadcasting function;
3) Automatically play back and forth class music ringtones, wake-up numbers, inter-class radio exercises, eye exercises, and campus background music;
4) Campus broadcasting has a unified centralized system control and management throughout the school, and independent control and management of each area. A point-to-point broadcasting system can be implemented in the classroom; the classroom can be assigned programs by grade or class at the same time, or English listening training and exams; administrative office Buildings, student dormitory buildings, canteens, outdoor and other places use a broadcast system in a partitioned manner;
5) The system must have good scalability, as long as the campus network can cover the broadcast information point can be easily deployed.
6) The campus broadcasting system can meet the flexible partition grouping, and the broadcast administrator can flexibly change the partition setting according to the actual situation;
7) All networked computers in the campus network can be used as the branch control point of the campus broadcast system; when the branch control point uses the campus broadcast system, it is required to be able to accurately broadcast to each broadcast partition or broadcast point;
8) Campus broadcast system administrators and authorized leaders can monitor or monitor the content of any broadcast point on campus in real time;
9) The campus broadcasting system can meet the needs of emergency broadcasting, can be connected to the fire broadcasting signal, and the system can achieve linkage;
10) The system also requires on-campus broadcasting, appreciation of famous songs, learning of English listening, rebroadcasting of radio programs, FM radio, etc., so as to cultivate students' interest and create a good campus environment.
5. Advantages of GMTD-IP network broadcasting:
Jinmai Video Digital IP Network Broadcasting System provides different control and management application interfaces for applications in different places, realizing the rich application functions of the broadcasting system. Compared with the traditional analog broadcasting system, this system is more in line with the development of information digitization The trend is the concrete embodiment of information digitization in practical applications.
â— Personalized regular play
Since each digital network terminal of the Jinmai digital IP network broadcasting system has an independent IP address, each can individually receive a personalized scheduled broadcast program of the server. The sub-workstation can be set up for scheduled playback operation on the Internet through the office computer, or directly through the on-demand keyboard of the terminal.
â— Terminal audio on demand
The real-time on-demand function of Jinmai digital IP network broadcasting system enables staff to communicate with the server in real time at sub-work stations to achieve interaction. The on-demand keyboard at the work site provides a personalized Chinese LCD display operation menu interface to assist staff in flexible control operations.
â— Leadership speech live
Jinmai digital IP network broadcasting system supports the leader's online speech function. Leaders do not need to go to a special broadcasting center, and they need to use an office computer to realize remote speech through the GM-8003 intercom terminal. You can talk to the whole area, you can talk to the optional area, and you can talk to the IP terminal of the branch control point.
â— Easily on-demand, digital learning in the E era
In the classroom, the content of the courseware in the server can be ordered on-demand through the remote control, for independent on-demand and local broadcast, which will better serve this IP broadcasting system for teaching applications.
â— Unlimited communication
In an emergency, authorized managers can broadcast the designated area or all areas of this IP broadcast system through mobile phones, landline and other communication equipment to broadcast emergency notifications and remote meetings. Although the distance is far, but the management is as close as possible Effect.
â— Live voice broadcast
Jinmai digital IP network broadcasting system's real-time program collection and broadcasting function can compress and store programs from other audio sources to the server in real time, and simultaneously broadcast to the designated terminal. The broadcast source can be other commercial or personal radio stations, decks, CD players, MP3 players, microphones, etc.
â— Background music
Jinmai digital network terminal adopts hardware audio decoding and has automatic error correction function. The high-fidelity sound effect balance ensures that the audio signal decoded and restored has CD quality, and has the same effect as the digital music output by the computer. Through the system settings, you can achieve unattended, multiple set time, background music of different tracks.
â— Intercom can be realized between sub-control workstations
School administrators can talk to each other at the IP network terminal of the main control workstation and the IP network terminal of the sub-control workstation.
â— Remote control function
Through the network, the terminal device can be controlled across network segments, and the on-site operation information can be fed back in real time, and the visual graphics information can display various statuses of the current device. Remote control includes: device on / off, volume level, setting IP, etc.
â— Batch control
Choose one, multiple or all terminals to control at the same time, avoiding repeated labor for the same operation.
â— Timed broadcast management
According to the needs of the broadcast content, one or more scheduled broadcast tasks can be established in order of week, day, hour, terminal, program, and time. The system will automatically execute all specified tasks without manual operation, and truly realize unattended operation.
â— Permission setting
The system can set up various roles, set up super administrator, supervisor leader, query administrator, control administrator, administrators with different permissions can perform different authorization operations. In addition, authority can also be established on the terminal, and unauthorized operations are invalid.
â— Automatic live broadcast / broadcast in any partition
Through the setting of the control software, different contents can be automatically played in any divided areas, such as radio programs and emergency notifications.
â— Separate live broadcast / broadcast in specific areas
Through the setting of the control software, personalized broadcasting to a certain area, such as holding a meeting at each branch of a certain area. According to different regions, different playback content, and the length of playback time are different, through the main control center software to perform task settings, etc.
â— Free combination of broadcasting in each area
Through the setting of the control software, it is possible to arbitrarily broadcast a certain area or a few areas, such as background music for public areas, living areas, libraries, and other areas.
â— Select area for temporary broadcast
The system can select areas for temporary broadcasting according to needs, such as a leader's speech, broadcast announcement, etc.
â— Broadcasting of different content in different areas at the same time
Through the setting of the control software, different content can be played in different areas at the same time, for example, different areas can be notified of different content events at the same time.
â— Broadcast monitoring
The system broadcasts content, and administrators or leaders can monitor the content of each channel broadcasted by the system in real time to understand the broadcast status of the program.
â— Emergency alarm
The system usually plays music. When there is an emergency broadcast request, the system immediately switches to the emergency broadcast state and performs emergency broadcast on the area that needs to be broadcast. At the same time, the system has an alarm linkage function. When there is an alarm, it will automatically notify the local police Each control network, at the same time according to the scope of the impact of the police situation, the size of the hazards automatically alarm the area to which it belongs, improve the efficiency of crowd evacuation and reduce the degree of loss.
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