0 Preface The video intelligent analysis system refers to a new system developed on the traditional video surveillance system with digital video processing technology as the core, making full use of the technologies of high-speed DSP, photoelectric sensor, industrial Ethernet and artificial intelligence in these years. Results. In addition to the functions of the traditional security monitoring system, the video intelligent analysis system also has day and night monitoring, uninterrupted detection, intelligent identification and early warning intrusion targets, automatic anomaly detection, video transmission, backend playback, low false positive rate, etc. Features. The security system based on the traditional PC platform has high maintenance cost and large power consumption. Generally, it does not have intelligent video analysis function. The real-time performance of the processor of the X86 system is not strong, and the scope of use is limited. At present, most of the video surveillance systems are based on the DM642 platform, and a small number of DM6467 platforms are used. The processor performance is weak and cannot meet the needs of future high-definition video intelligent analysis. TI introduced the TMS320DM8168 image processor in 2011 with embedded ARM core and DSP core, ARM core is 1.2 GHz ARM-Cortex--A8 RISCMPU, DSP core is 1 GHz C674x-VLIW DSP, with SGX530 display accelerator, HD Video coprocessor (HDVICP), HD Video Processing Subsystem (HDVPSS). This paper designs and implements a high-definition video intelligent analysis system based on the image processor processor TMS320DM8168 of Texas Instruments. It can intelligently analyze high-definition video streams and has detection, identification, tracking and early warning functions for threat targets. Video compression is transmitted to the monitoring backend via Gigabit Ethernet. The high-definition video intelligent analysis system processor has strong computing power and can meet the requirements of multi-channel high-definition video analysis processing and encoding transmission, and has great practical value. This program describes the design process of the HD video intelligent analysis system in detail from two aspects of hardware design and software design. 1 system hardware components The HD video intelligent analysis system is used to achieve large-area coverage monitoring of the site and close-up monitoring of target events. Mainly composed of A / D converter, DM8168 processor, power conversion circuit and so on. As shown in Figure 1. The HD video intelligent analysis system is powered by 12VDC. The power conversion circuit is converted into 5 V, 3.3 V and 1.5 V voltages by the TPS54620 chip, and then converted to the voltage required by each functional circuit for use by the functional circuit. The HD analog video signal enters the system through the YPbPr interface, and is captured by the HD video decoder TVP7002, which is captured by the VIP0 port of the DM8168. The DM8168's HD Video Processing Subsystem (HDVPSS) provides a video input interface and a video output interface for video capture, display, scaling, and de-interlacing. The video output interface has an HDMI display output interface. The DM8168's HD Video Coprocessor (HDVICP) handles H.264, MPEG4, and MJPEG codecs. The SGX530 display accelerator of the processor DM8168 can effectively improve the display speed and quality of the video stream. The DSP core of the processor DM8168 completes the analysis and understanding of high-definition video signals, actively extracts targets and achieves target tracking. The ARM core of the processor DM8168 runs a Linux-based operating system application, which is mainly responsible for system control, communication, and network transmission. It outputs alarm signals and transmits video compression to the monitoring backend through Gigabit Ethernet. This design works. The process is shown in Figure 2. Chengdu Xinruixin Optical Communication Technology Co.,Ltd , https://www.xrxoptic.com
