Million HD camera surveillance technology is not a new concept – its applications and benefits are obvious. Smart cameras can take advantage of the increased brightness of pixels and images for better recognition and analysis.

This article refers to the address: http://

The prospect of a million HD camera cameras is considerable. According to IMS Research, HD and millions of high-definition camera cameras are expected to account for 30% of the network camera market this year. By 2015, this number is expected to exceed 60%.

The increase in resolution has a significant effect on the entire monitoring system. Although two million HD cameras or 1080PHD images are six times larger than D1 images, the added pixels require more transmission media. The infrastructure and storage costs built for millions of high-definition cameras are well documented, and their overall cost (TCO) and return on investment (ROI) are the basis for debate. The future fate of millions of high-definition cameras is closely related to IP networks. According to IMS, HD is expected to occupy most of the high-resolution camera market compared to millions of high-definition cameras.

Million HD camera monitoring requires careful planning, but the increased resolution can facilitate the accuracy of the picture analysis. Other devices can use a faster processor to display the picture. Picture analysis helps reduce bandwidth, and as an event-triggered video stream, it does not require continuous transmission of some still pictures over the network. Distributed architectures have fewer restrictions on the network.

Sharpness is a major driver of millions of high-definition cameras. “Every day, at the end of the day, everything recorded by the security system can be used as evidence,” said Stephen Moody, security development manager for the ViS security solution.

Mode split

H.264 is a compression standard that can be used in millions of high-definition cameras because it can effectively split large data files into smaller data sets for transmission and storage. As compression technology evolved from M-JPEG to MPEG-4, and now to H.264, its performance patterns vary. According to PM SachinKhanna of the CCTV division of Bosch Security Systems, three of the most common performance modes are: basic mode, mainstream mode and high-end mode.

The basic mode is suitable for video conferencing; the mainstream mode is suitable for video playback; the high-end mode is most suitable for high-definition video playback. "H.264 needs to borrow some processing power for encoding and decoding; this may limit the camera's frame rate and determine the performance required by the NVR platform," OncamGlobal's CTORich Pineau.

Most H.264 modes are derived from 2-D applications, so not all modes can be integrated. “Even if both cameras are in H.264 mode and the two vendors are partners, the system is not necessarily compatible,” said AdemcoFarEast marketing director Patrick Lim. “I/O and output are difficult to integrate. Some engineers think plugging in and playing. It is a very simple matter."

Different H.264 modes help improve performance and efficiency, which also affects the user's choice of camera.

“In addition to high-end applications, people compare image quality through different mode settings in the camera to evaluate camera performance,” said Norbain technical director Andrew Pigram. “Ultimately, users want to get the highest quality images with the lowest bandwidth, but They will eventually choose the most suitable video streaming mode for data recording, transmission and viewing."

Compression performance is reflected in the effect of increasing the camera's ability to capture moving pictures without increasing the bit rate. "There are many effective ways to evaluate encoder performance, such as waving your arms in front of the camera or shaking the camera itself, such as imitating a high-speed ball," said Bengt Christensson, senior marketing director at Ambarella.

The basic mode and high-end mode of H.264 can meet the real-time transmission needs, and its latency is longer than that of a million high-definition cameras, said XiangWei, vice president of engineering at Grandstream Networks.

H.264 allows a million HD camera to match the SD bit rate. SDPTZ cameras that use MPEG-4 compression require 2.5MB to 4.0MB per second; with H.264, the bit rate drops to 1MB to 1.75MB, and users can manage storage. DVTel's CTOEdThompson in H.264 end-to-end testing, most people do not see the difference of 1.5MB to 6MB. ”

However, some integrators are more suitable for MPEG-4. Moody said: "It relies on monitoring and recording platforms because one of the advantages is that not every vendor supports the H.264 codec, especially in remote monitoring environments."

Multiple video coding technology

Almost all of the millions of high-definition camera cameras support multiple video encoding technologies, so users can choose based on context. “When off-hours, buildings can be monitored at a lower frame rate, and when the alarm is triggered, it can be adjusted to a faster frame rate of H.264,” said BeckyZhou, APAC marketing director at ArecontVision.

The dynamic capture of H.264 compression is less efficient and details are lost, while M-JPEG does not lose the picture. "If there are more moving objects and each pixel changes faster, H.264 can predict the action," Basler's advanced PMGerrit Schreiber said. "But if you use M-JPEG, you can see more details. For the screen movement is not In many cases, M-JPEG is clearer, but if you need a lot of mosaics with details, M-JPEG will increase bandwidth requirements."

Embedded

One of the most notable trends in the millions of high-definition camera surveillance technologies is intelligence. The requirements for picture analysis include basic algorithms—personal counting, motion detection, missing object detection, and tracking.

Analysis is done with faster processors and high pixels, so embedded devices are better suited for detail recognition, especially for face or license recognition.

While most of the millions of HD camera cameras support basic analysis, there are some that will soon support access control and anti-intrusion features.

HD or millions of high-definition camera cameras are expected to become smarter, so video system architecture will be dominated by servers and embedded devices, and will reduce TCO.

The smart camera reduces network stress and allows the camera to control 24/7 recording. However, higher pixels require more processing power.

Image Sensor

Objectively speaking, there are standards that can identify whether a million HD camera has good image transmission capabilities. In order to improve sensitivity, IR illumination improves image perception performance. The higher the pixel of the sensor, the greater the noise generated at night, so IR night illumination is required.

Lens

Millions of high-definition cameras are limited by optical lenses. Real-million-high-definition cameras have a high price and a small number of lenses, so they cannot keep up with the growing demand for image sensors. There are currently 5 to 10 million high-definition camera lenses on the market, but the price ranges from $700 to $1400, and the price may even exceed the camera itself. A good million camera lens should have the same resolution from the periphery to the center. Due to the increase in sensor models, the use of fisheye lenses in the monitoring of millions of high-definition cameras has also increased. A hemispherical camera should have a fisheye lens to better match the sensor.

Look at the product specification sheet is a good reference. Software and programs can also affect the performance of the camera; the screens displayed by two cameras using the same hardware can vary greatly.

Single Side Board, FR4 TG135 Material. copper thickness 1oz finished. LF-HASL surface treatment with green solder mask. board thickness 0.6+/-0.1mm. Min.line width/Min.line spacing 0.15/0.15mm. E-test: 100% 30up with routed&v-cut. No x-out allowed. 

Single Side Board, FR4 TG135 Material. copper thickness 1oz finished. LF-HASL surface treatment with green solder mask. board thickness 0.6+/-0.1mm. Min.line width/Min.line spacing 0.15/0.15mm. E-test: 100% 30up with routed&v-cut. No x-out allowed. 
The single side boards are generally simple, so the production process is simplified and the cost is low.
A lot of PCB boards are made as FR4, and some of the low-end products are made as CEM-1

Single Side Board

Single Side Board

Single Side Board,Single Sided PCB,Single Sided PCB Board,Single Layer PCB

Orilind Limited Company , https://www.orilind.com