The Provincial Department of Education recently issued a notice to further strengthen the security work in schools and surrounding areas.
Schools at all levels should further strengthen the construction of "three defenses". In terms of technical defense configuration standards, it is clear that video surveillance, fire fighting and other facilities and equipment should be installed at the school gate and key parts of the campus to ensure that the video information of video surveillance is kept for not less than 30 days, and the playback clarity is not less than 704×576 pixels, and it is networked with local public security organs and education departments.
Monitor the preservation time
This is determined by the recording format of the surveillance video and the size of the storage space used by the surveillance system. In general, a camera can record video continuously for 24 hours, which requires about 0.3G-0.5G hard disk capacity. If you turn on the mobile phone recording function, which only records when something passes by, it will take less space and take longer to monitor and save.
1. Due to the limitation of storage space and storage cost, and the fact that videos in public places such as residential areas are multi-cameras, it is necessary to ensure certain clarity, so videos are usually deleted once a week. The average entertainment venue is 15 days, the financial industry is 26 days, and the bank is 3 months to half a year, depending on the current venue regulations;
2. The storage time of surveillance video is generally related to the following points: the hard disk capacity of the host. Under normal circumstances, a video camera continuously records video for 24 hours, which requires about 0.3G-0.5G hard disk capacity. Different system parameters are different, the minimum is 0. 15G/24 hours;
3. The number of cameras. The more cameras there are, the more capacity they need. There is also the choice of resolution and image quality of the recorded picture, which will also affect the capacity required for video storage;
4. The video recording method will also affect the space required for storage. Video recording methods are generally divided into mobile video recording and continuous video recording. The former means that when a moving object passes through the monitoring range, the host computer will start recording, and it will not record at other times. This can reduce the storage space required for video recording; And continuous video is a 24-hour uninterrupted video.