High definition network cameras not only provide people with a clear visual experience, but also place higher demands on network bandwidth. To achieve large-scale applications, it is necessary to address bandwidth related issues. What is the impact of fiber optic transmission speed on high-definition network cameras? Let's analyze the development direction of high-definition network cameras together.(Source: Dongguan HX Fiber Technology Co., Ltd)
1. Adopting advanced video compression standards
Actively adopting advanced video compression standards to ensure the best image quality is achieved with the minimum amount of data. At the same time, by combining image encoding technology with intelligent technology and adopting local encoding, the network bandwidth required for high-definition image transmission can be significantly reduced.
At present, there are three mainstream compression formats, namely JPEG, MPEG-4, and H.264. JPEG is the compression of a single frame image, which has the best effect on a single image, but it occupies a large amount of network bandwidth resources; MPEG-4 and H.264 are continuous compression between frames. The currently most popular compression format, H.264, has the highest compression efficiency. Video data compressed by H.264 requires less bandwidth during network transmission.
2. Provide dual stream support
While achieving high-definition local recording, adopting dual stream technology can simultaneously reduce the bandwidth usage of remote transmission and ensure better local image quality. In a remote monitoring environment, high-definition cameras can provide a high bitrate stream for local high-definition storage, such as 720P/1080P encoding, and a low bitrate stream for network transmission, such as QCIF/CIF encoding, while balancing local storage and remote network transmission. Flexibly select the bitstream format based on network bandwidth, achieving local high-definition storage while transmitting low bitstream on the backend network. It can ensure the stable operation of the transmission system when the network resources available to users are limited.
3. Enhancing the added value of intelligent technology
Intelligent technology can improve monitoring efficiency, and its value goes beyond that. Through coding and intelligent analysis, high-definition network cameras with embedded intelligent analysis modules can capture valuable information from the source and transmit it to the background, reducing transmission pressure and truly achieving effective transmission. The high-definition camera itself can analyze and judge the collected images, and transmit alarm signals to the backend system, which is different from the traditional way of intelligent technology transmitting images to the backend system and then analyzing alarms through software. The previous methods required too much bandwidth and storage space, and due to the loss of image signals during transmission, false alarms were prone to occur. Due to all signal processing being done inside the front camera, high-definition cameras have the most complete signal, greatly improving the accuracy of alarms and reducing bandwidth.
4. Improve front-end caching technology
Design a reasonable front-end caching technology to ensure that device images are not lost. The high-definition camera itself has limited data storage capabilities and relies on communication transmission and backend storage devices. We can prevent data loss in the event of communication failures by designing a reasonable front-end caching mechanism. For example, in the design of high-definition camera systems, onboard memory or other storage devices can be optional and support offline operation. In case of abnormal network interruption, data can be temporarily stored locally and transmitted back to the server after the network is restored to normal. It is also possible to use network management technology to achieve front-end caching when the network is temporarily interrupted, and automatically upload recording data after the network is restored, thereby ensuring the integrity of the recording.
5. Develop and comply with industry standards
It is necessary for various manufacturers in the monitoring market to unite and establish some common standards, seeking common ground while reserving minor differences. The emergence of standardization organizations such as Onvif and PSIA has shown hope for standardization of video products and systems. The era of plug and play video surveillance is believed to be not far away.
High definition network cameras represent the future of surveillance cameras. The application of high-speed network transmission technology, represented by optical transmission systems, is becoming increasingly popular in China. Finit has been focusing on the research and sales of fiber optic products for 12 years, with a product series of up to 10000 types, including fiber optic jumpers, fiber optic adapters, MPO/MTP data centers, etc. All fiber optic products comply with international and domestic standards such as ICE, ROSH, and YD/T. (Source: Dongguan HX Fiber Technology Co., Ltd)
High definition network cameras not only provide people with a clear visual experience, but also place higher demands on network bandwidth. To achieve large-scale applications, it is necessary to address bandwidth related issues. What is the impact of fiber optic transmission speed on high-definition network cameras? Let's analyze the development direction of high-definition network cameras together.(Source: Dongguan HX Fiber Technology Co., Ltd)
1. Adopting advanced video compression standards
Actively adopting advanced video compression standards to ensure the best image quality is achieved with the minimum amount of data. At the same time, by combining image encoding technology with intelligent technology and adopting local encoding, the network bandwidth required for high-definition image transmission can be significantly reduced.
At present, there are three mainstream compression formats, namely JPEG, MPEG-4, and H.264. JPEG is the compression of a single frame image, which has the best effect on a single image, but it occupies a large amount of network bandwidth resources; MPEG-4 and H.264 are continuous compression between frames. The currently most popular compression format, H.264, has the highest compression efficiency. Video data compressed by H.264 requires less bandwidth during network transmission.
2. Provide dual stream support
While achieving high-definition local recording, adopting dual stream technology can simultaneously reduce the bandwidth usage of remote transmission and ensure better local image quality. In a remote monitoring environment, high-definition cameras can provide a high bitrate stream for local high-definition storage, such as 720P/1080P encoding, and a low bitrate stream for network transmission, such as QCIF/CIF encoding, while balancing local storage and remote network transmission. Flexibly select the bitstream format based on network bandwidth, achieving local high-definition storage while transmitting low bitstream on the backend network. It can ensure the stable operation of the transmission system when the network resources available to users are limited.
3. Enhancing the added value of intelligent technology
Intelligent technology can improve monitoring efficiency, and its value goes beyond that. Through coding and intelligent analysis, high-definition network cameras with embedded intelligent analysis modules can capture valuable information from the source and transmit it to the background, reducing transmission pressure and truly achieving effective transmission. The high-definition camera itself can analyze and judge the collected images, and transmit alarm signals to the backend system, which is different from the traditional way of intelligent technology transmitting images to the backend system and then analyzing alarms through software. The previous methods required too much bandwidth and storage space, and due to the loss of image signals during transmission, false alarms were prone to occur. Due to all signal processing being done inside the front camera, high-definition cameras have the most complete signal, greatly improving the accuracy of alarms and reducing bandwidth.
4. Improve front-end caching technology
Design a reasonable front-end caching technology to ensure that device images are not lost. The high-definition camera itself has limited data storage capabilities and relies on communication transmission and backend storage devices. We can prevent data loss in the event of communication failures by designing a reasonable front-end caching mechanism. For example, in the design of high-definition camera systems, onboard memory or other storage devices can be optional and support offline operation. In case of abnormal network interruption, data can be temporarily stored locally and transmitted back to the server after the network is restored to normal. It is also possible to use network management technology to achieve front-end caching when the network is temporarily interrupted, and automatically upload recording data after the network is restored, thereby ensuring the integrity of the recording.
5. Develop and comply with industry standards
It is necessary for various manufacturers in the monitoring market to unite and establish some common standards, seeking common ground while reserving minor differences. The emergence of standardization organizations such as Onvif and PSIA has shown hope for standardization of video products and systems. The era of plug and play video surveillance is believed to be not far away.
High definition network cameras represent the future of surveillance cameras. The application of high-speed network transmission technology, represented by optical transmission systems, is becoming increasingly popular in China. Finit has been focusing on the research and sales of fiber optic products for 12 years, with a product series of up to 10000 types, including fiber optic jumpers, fiber optic adapters, MPO/MTP data centers, etc. All fiber optic products comply with international and domestic standards such as ICE, ROSH, and YD/T. (Source: Dongguan HX Fiber Technology Co., Ltd)
