Many people don't understand the difference between the 960H simulation system and the traditional D1. So today, Xiaobian will explain to you the advantages of the 960H and how to distinguish the D1 and 960H image quality differences.
The 960H opens another sky for traditional analog surveillance, continuing the life cycle of analog surveillance CCTV. However, the image specifications of the cameras on the market are more complicated and confusing. Since Sony introduced the Effio series of DSPs and developed a new specification 960H (analog high quality), back-end chip manufacturers have also launched products supporting 960H, such as VideoDecoder and Codec/SOC, to make existing analog CCTVs from traditional D1. Upgrade to 960H more comprehensive start, improve the picture quality is imperative, and then 960H trend.
Seeing
The biggest difference between the 960H and the traditional D1 is that the effective pixels of the 960H are 30% more than the traditional D1 level, and the resolution of the improved level is 650 TVL. To show the 960H image quality advantage, it must be matched from the front camera to the VideoDecoder and Codec/SOC on the back DVR to form a complete system. First of all, in terms of VideoDecoder, it must support 36MHz sampling, and send out the 960H digital format (BT.1302). The back-end Codec/SOC must also have the ability to process 960H data volume, so that it can fully display the 960H image quality.
How to compare the image difference between 960H and D1? The generally accepted method is the resolution test to see if the picture can reach 650TVL effect. However, this method is feasible in the laboratory, but when it comes to the general customer, it is not necessarily a quick and convenient test in terms of setting up the environment. Here is a simple and easy way to verify this difference; that is, the actual bar code, or chip pins on the board to test.
We can find that through the 960H camera, with the 960H VideoDecoder decoding, the output image is compared with the VideoDecoder with D1, the barcode gap in the image and the IC pin show the specific difference between the two. The 960H's VideoDecoder is clear and identifiable for the subtleties of the lines; the D1 version is blurry and less than ideal. In this way, for the chip supply and system application, it will be a quick and easy to see effect, communication method.
The advantage of the 960H is at the high-frequency detail. From the previous comparison, the difference between the 960H system and the traditional D1 system is included in the high-frequency part of the signal. In other words, the performance of the subtle lines is one of the advantages of the 960H. From the perspective of pursuing higher image quality, it is imperative to upgrade the existing analog monitoring system from the traditional D1 to the 960H. Organize the advantages of today's 960H system development, with the following characteristics:
1. From the perspective of the erection system, compared to other systems (such as IPCamera), the 960H can follow the mainstream wiring architecture of today's CCTV. In other words, for the 960H system, you only need to change the camera on the front end to the 960H camera, and the DVR on the back end to the DVR in the 960H, you can feel the higher quality image. Without re-engineering wiring, you can save a lot of update costs.
2. From the VideoDecoder component point of view, there are many products in the 960H VideoDecoder currently available on the market. The 960HVideoDecoder can receive signals regardless of whether the front camera is a 960H camera. For the user, the machine can be slowly replaced as needed to achieve a seamless upgrade.
3. From the perspective of future development, the general evaluation will inevitably have a certain market share in the next few years. In the pursuit of higher specifications, clearer image quality, the traditional D1 below the quality of the DVR will gradually be replaced by 960H, which means that the 960H has a certain explosive potential in the next few years.
4. From the perspective of image transmission, the 960H is an analog signal, and there is no compression when transmitting images, and there is no delay. This is an indispensable feature for the demanding application market where real-time viewing of clear images is required.
First change the DVR and then change the camera to look at the above advantages. It can be said that the 960H is a purely standard upgrade compared to the traditional D1, rather than a brand new architecture. Based on this trait and advantage, it is believed that in the next few years, 960H will gradually replace the traditional monitoring market.
Therefore, for the consumer, first replace the 960H DVR, and then replace the 960H camera, which can bring a lot of convenience to the user, is also a very wise choice.
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