High-end high-end wind in the field of optical transceiver
In the video surveillance industry, the concept of â€œhigh-definitionâ€ in the video-optical-drive machine industry has also begun to rise due to the impact of the â€œHD-ratedâ€ camera. Although the current application level is still somewhat narrow, but over time, there will certainly be more mature applications for high-definition video services.
In addition to the "high-definition" wind, the optical transceiver industry is still scraping the "high-end" wind. As there are many new entrants in this industry, the competition in the low-end market is very fierce. Some mainstream manufacturers have begun to position the market segments in high-end customers such as expressways and industrial enterprises.
A large-capacity node transmission system has been introduced to address issues such as the number of points in highways and other applications. The system supports a maximum of 128 access points on a single fiber, and each access point supports 1 to 2 video channels. The road independent data function and 1 channel audio and 2 shared data can support ring self-healing network. The system uses a broadcast-TV-level lossless compression solution.
For the high-end users, the company introduced a hundred-node optical transceiver, accessing up to 100 nodes through a single core fiber, and can form a self-healing ring, using a small amount of optical fiber to build large-capacity, highly reliable video, audio, and data transmission systems. Currently, multi-node and PON-based optical transceiver R&D are being strengthened. The main features of these products are: saving optical cables, transmitting large amounts of video, flexible access, easy maintenance, and perfect network management functions. It is suitable for video surveillance systems with a large number of videos and cross-region cities. It can also be applied to video surveillance of highways, high-speed railways, subways and other transportation facilities.
In addition, the stability of the product has become a concern for optical transceiver manufacturers. In early 2010, it had fault pre-diagnosis video optical transceivers. This optical transceiver can alarm in advance before the optical transceiver function fails, prompting the user to replace, so that the system can be avoided.
The importance of optical transceivers for monitoring transmission
In the large-scale community, large-scale factory security project, as long as the transmission distance reaches 800 meters, optical transceiver is an essential transmission equipment. Our business applications for optical transceivers are relatively simple, mainly for video transmission and back-end control of the front-end head, in addition to less audio transmission, in some projects, we have applied to intercom and other services.
When choosing a product, the user gives us full autonomy, and we decide what kind of equipment to use based on the needs of the project. In practical applications, video transmitted over a long distance by an optical transceiver has no problems such as crosstalk, but careful observation can still reveal that the image noise has increased. We have been using the optical transceiver for 5 or 6 years. During this period, the equipment operation is very stable, but occasionally we have problems such as failure of control signal transmission and inaccurate control of the gimbal. However, in the long-distance transmission, the optical transceiver has a low cost and occupies a dominant position. If you can add optical ports directly to equipment such as fastball, then the application will be more convenient.
For optical transceivers, we generally use video, telephone, and intercom services. However, when optical transceivers are used as transmission equipment, they often encounter construction problems such as line excavation, heavy coordination workload, and equipment costs. Therefore, in the long-distance transmission, we prefer to use low maintenance, no wiring, low-cost wireless transmission applications. Of course, wireless transmission also has its limitations. That is, the interface is too small. Generally, it cannot simultaneously satisfy the simultaneous transmission of video, audio, and control signals. Therefore, we use the signal to first access the optical transceiver and then the optical transceiver output to the wireless device. The optical transceiver is used as a converter to realize synchronous transmission of multiple signals, eliminating construction and fiber costs. Wireless transmission applications are point-to-point, convenient, and can meet most of the civilian security transmission bandwidth requirements. As long as the lightning protection work is done, the application prospects are better than the optical transceivers.
The demand for optical transceivers in residential quarters, hospitals, military units, and prisons is not large, and the demand for prisons is the largest, but the requirements for products are also the greatest. The prison is equipped with various high-voltage protection measures, and it is easy to cause interference to the security system. Therefore, the anti-interference ability of the used optical transceiver is also required to be very high. If the application has found that the optical transceiver has the anti-jamming design defect, the manufacturer must be required to solve the problem. . In practical applications, we often reduce equipment interference caused by the prison environment by improving equipment performance, adding grounding, shielding, and other anti-jamming measures.
The power supply design of the optical transceiver is very important, the design is not ideal, and the anti-jamming and stability are greatly affected. In addition, the BNC street of the equipment must also be handled well, use the high-quality material to make, otherwise, the application is prone to the equipment problem such as bad contact, oxidation.
About Optical transceivers:
Optical transceivers are terminal devices for transmitting optical signals. Due to the improvement of current technology, the reduction of the price of optical fiber has made it well applied in various fields. Therefore, the manufacturers of optical transceivers are like springing up. However, most of the manufacturers here are not fully mature. The development of new technologies requires cost, manpower, and material resources. This leads to the fact that many manufacturers are small and medium-sized enterprises, and all brands have emerged one after another. However, the quality is still similar, foreign optical transceivers are good but expensive, so the domestic manufacturers to transform the production of optical transceivers out of the way to meet domestic needs.
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