The system achieves a full range of functions such as real-time video monitoring, GPS, vehicle tracking, GEO-Fence, voice intercom, alarm linkage, video storage / upload, remote upgrade. text to speech, statistical analysis. (e.g. speed, fuel consumption), user permission setting and management etc. 100,000 vehicles real time monitoring fleet management. Real-time video & audio monitoring. Real-time complete information of vehicle status, such as numbers of online vehicle. speed, GPS tracking, vehicle temperature, alarms etc. Video remote search & download. Voice intercom, broadcasting, text to speech. Picture snapshot. PTZ control. Driving route record. CMSV6 client.