Smart cities have become a major trend in today's urban development. The popularity of technology has greatly improved the quality of life of the people. It has also enabled the company to save costs from the traditional management model. As a hot topic in recent years, the monitoring system is also undergoing a smart transformation. OT Systems recently released "Mobile Surveillance + Big Data Solution", a set of artificial intelligence CCTV system with learning and judgment, integrated security system solutions for big data applications, widely used in construction sites and environmental protection, It can play a role in preventing crime and environmental sanitation and safeguarding the safety of citizens and society.