I am now designing a time-lapse photography system for the Smart Site project. The camera brands are Hikvision and Dahua. Now the camera channel configuration, camera configuration, and camera playback functions have been completed. How should the time-lapse photography system be designed? What functions are included? What is the principle behind the time-lapse photography system? Please use EarthCam as a competitor, conduct a competitive product analysis, and answer my questions above. Based on the current understanding of the time-lapse photography system, we do not want to capture pictures, we want to achieve it by capturing a video clip. Please design the solution and function design.reply in Chinese