The full name of the security system is the security system, which is a system composed of security products and other related products, such as intrusion alarm systems, video security monitoring systems, access control systems, explosion-proof security inspections, etc.; or these systems are combined as subsystems or Integrated electronic system or network.The security system is mainly composed of three parts, namely access control system, closed-circuit monitoring system, anti-theft and patrol system. With the continuous improvement of people's requirements for the environmental quality of living, office and other areas. Intelligent security systems are becoming more and more popular.