Beidou intelligent terminal is a cost-effective multi-functional device, which is used for video monitoring and remote monitoring of mobile assets. It has a high-speed processor, embedded Linux platform and the most advanced technology in IT field, such as H.264 video compression / decompression, 4G network transmission technology and BD & GPS dual-mode positioning technology. Tr70 can realize four / eight channels of video recording, and each channel supports CIF, HD1 and D1 image solutions. SD card is used as storage medium to record driver's driving information, BD & GPS dual-mode data and alarm data. Tr70 with simple appearance design provides powerful black box function, which is flexible in installation and high in reliability.