1、 Background analysis

Because the monitoring object is the protected weak children, the more important thing is the security of external intrusion. The monitoring project is mainly reflected in parents' remote viewing of the kindergarten, including activities and classes;

In primary and secondary schools, the monitoring object is the protected developing teenagers. Security work is also one of the main purposes of school security, including not only external invasion, but also internal campus violence. Its extended application is more reflected in the application of electronic invigilator;

Colleges and universities are basically adult people. It is important to prevent external intrusion and campus internal security, but the proportion of extended applications is increased, which is mainly reflected in the application of distance teaching.

2、 Project analysis
(1) . video monitoring area
In order to ensure the normal work and life order of the school and the safety of the school, avoid the loss of school property, ensure the safety of teachers and students, and avoid illegal intrusion, it is necessary to effectively prevent the safety of the whole school. Through all-weather, real-time and high-definition video monitoring in many important areas and points such as library, school gate, playground, parking lot, School Road, square, perimeter, canteen and walkways on some floors.

(2) . point distribution requirements
The whole video monitoring requirements can meet 24-hour local monitoring around the clock. The front end must adopt the most advanced and stable camera at present. PTZ cameras or HD fixed cameras shall be used in important places such as school entrances and exits. HD ball cameras or HD gun cameras shall be installed in some wide public places such as school roads, playgrounds and canteens. Fixed HD cameras shall be installed in some areas such as school perimeter, and high-definition network hemispheres shall be installed in floor walkways.

(3) . alarm linkage
Through the monitoring project management software and alarm interface software, the monitoring system can respond to the regional networked alarm system. After the user of the regional networked alarm system gives an alarm, the regional networked alarm host will automatically call relevant images to the large screen or main monitor through the alarm interface software, and start the established plan system at the same time. The large screen of the main control center can display monitoring images, computer network information, GPS, GIS system and other information as a comprehensive display platform of various information.

(4) . networked monitoring
Through the school LAN, superior departments and relevant leaders can call any image, authorized users can call video data online, etc.

3、 System characteristics and topology
Using the existing campus network resources and the surplus optical fiber of the campus network for network data transmission, all the functions of the campus network video monitoring system are realized. Video access is based on the principle of nearby access to achieve the effect of high-definition whole network without blind area.