IP HD and HD-How will -SDI and 960H HD coexist?

However, from the practical engineering point of view, no matter IP HD, HD-SDI or 960H, they are all product technical forms to improve the resolution and clarity of surveillance video. The purpose is the same, and the application is relatively consistent. Therefore, exploring how they can achieve mixed coexistence is the king of high-definition monitoring applications. In order to open up a road of coexistence, we must first consider the transmission architecture of existing equipment. If the original system is a coaxial transmission system, the problem of coexistence of three types of cameras can be solved in two ways in engineering. Firstly, under the framework of traditional coaxial cable, by installing the transmitting and receiving unit of SLOC(Signal Link Over Coaxial) at the back end of IP network camera, IP HD camera can use the existing coaxial cable of the original system by using the principle and mechanism of transmission and conversion. At the same time, SLOC transmission equipment can also provide TCP/IP signals and video signals to output TCP/IP network signals, which can be converted into network signals to enter the network routing architecture after being received by SLOC transmission equipment, while video images and video signals can enter the existing analog image matrix or HD-SDI matrix system or digital video recorder DVR. In this process, it is necessary not only to solve the obstacle of IP network camera transmission in traditional coaxial cable, but also to solve the dilemma that the main architecture of analog system can not be replaced or the cable can not be replaced. SMPTE-292 broadcast TV signal of HD-SDI can be transmitted on traditional coaxial cable, so after receiving SDI signal, the signal can be directly input into HD(SDI)-DVR or matrix system. As a result, the system architecture smoothly slides into HD, and IP and SDI HD can coexist. If both the analog camera and the 960H high-resolution camera are to be incorporated into the system, it is not difficult to integrate the 960H analog high-resolution camera and the ordinary analog camera into the same system under the same coaxial cable architecture. In fact, this high-definition hybrid architecture is also a reference scheme for many engineers, and it is also reflected in some practical cases. The second is that the existing transmission system architecture is TCP/IP network architecture. At this time, IP network camera is the main architecture of the whole system. If non-IP HD-SDI HD, 960H analog high-resolution cameras and ordinary analog cameras are to be merged into the same system, there must be a common operation mechanism in transmission and conversion, so as to ensure the smooth operation of analog and HD-SDI HD under a single monitoring system architecture. So ... how? The author thinks that there are two methods: one is to merge the HD-SDI high-definition cameras in all systems into the HD(SDI)-DVR, and then merge the TCP/IP signals output by the DVR into the network device routing, so that the HD-SDI cameras can be controlled manually and the PTZ； can be controlled through CMS software or DVR's own browser; Then the video encoder of SDI-DVS is connected to the camera of HD-SDI, and the encoder directly converts the signal into TCP/IP signal. In this way, just like an IP camera, HD-SDI images can be converted into network signals separately, and IP monitoring can be directly carried out on the route. As for the 960H analog camera, the principle is the same: after being collected by 960HDVR, the collection can be directly monitored through IP routing. In addition, of course, video signals can be directly converted into TCP/IP mode through video encoder DVS to meet the requirements of network monitoring architecture. At this point, some projects may raise questions about the transmission distance and video format of the last mile, and some readers begin to question the compatibility of 960H and HD-SDI signals in some transmission and storage devices, even the display format of screen imaging. In addition, there are exchange of back-end unit formats and analysis and comparison after compression.