Shenzhen Longhua District GuangdongNo.12 TramsNo.38 Video Surveillance SystemsNo.40 Video SurveillanceNo.49 Big Data EvaluationNo.74 Smart Data AnalysisNo.84 Audio Video Technology Cloud Services Security Surveillance Qi Ye Xin Informatization Data Services Safety Management Cloud Computing科技型中小企业市科技型中小企业高新技术企业省级高新技术企业市级创新型中小企业市级高新技术企业