大华曾在2006-2010年连续5年入选国家规划布局重点软件企业，2007年至今连续10年入选《A&S》“全球安防50强”，并在2016年跃居全球第四的位置，全球知名的数据分析机构IHS出具的报告显示，大华在2016年已经成为全球视频监控市场的第二大供应商，拥有的发明专利超过600余项。里约奥运、G20杭州峰会、APEC峰会、世界互联网大会等重大工程项目中都有大华安防设备的参与。
 
Lecheng is Dahua's life brand, Lecheng home alarm system is composed of intelligent gateway G1, motion sensor WM1, wireless infrared detector WP2, wireless curtain detector WP3, sound and light alarm WR1 and door magnetic sensor WD1, complete functions, most importantly, it can also be equipped with smart cameras. The latest camera TP1S can output 1080p high-definition video, built-in gateway module, can replace G1 as the core host, after connecting to the mobile phone APP, not only can receive alarm information in real time, but also can remotely see the situation of the scene through the camera, if necessary, you can take photos for evidence. In addition, it also has infrared night vision function, which can also be monitored normally at night. The G1 gateway can connect up to 48 monitoring terminals, but it does not support area arming/disarming, and the convenience of use is slightly inferior. In terms of price, you can buy a 7-piece set including a smart camera for 1600 yuan, which is relatively cost-effective.