Last week, the Smart Dog shared the idea of ​​how the phone would project the screen onto a larger TV or monitor in a wired manner. However, the wired way is outdated, and more children's shoes are still looking forward to the enlargement of wireless screens. Therefore, Xiaobian worked overtime and made 6 pictures. After watching it, you can enjoy the wireless projection function represented by Miracast technology.
Finally, add some notes.
Nowadays, any Android mobile phone and tablet computer on the market support Miracast wireless projection technology. Internet TVs, smart TVs, TV boxes, and TV sticks that are pre-installed with the Android system are also supported. Many high-end displays and projectors are also supported. It also supports this technology. Therefore, Miracast is undoubtedly the most popular wireless projection technology.
However, for old display devices, peripherals such as TV boxes, video sticks, and Miracast adapters are often required to support them. For Windows-based PCs, there is also a need for newer processor platforms, wireless network cards, and Windows 8.1 (as the projector) or Windows 10th Anniversary Update (as the receiving projector) system support.
Finally, the smart dog will make a preview of the next period.
Whether it is MHL, Miracast, or various third-party APPs introduced by Zhigougou, they can achieve "copying" of mobile screen content on larger display devices. However, the disadvantage of screen synchronization is that mobile phones cannot be used as a "secondary" device. "If a phone call or a WeChat video came during the screencasting process, it would be very embarrassing . At this time, wireless projection technology represented by DLNA is the solution. The smart dog will quickly make fun DLNA tutorial map, look forward to it together
ONU equipment is composed of core functional circuits, power supply and management and other common units and communication interfaces. The core functional blocks of ONU include user and service multiplexing functions, transmission multiplexing functions, and ODN interface functions. User and service multiplexing functions include assembling information from each user, allocating information to be transmitted to each user, and connecting a single service interface function; transmission multiplexing function includes analyzing the signal from the ODN and extracting the part belonging to the ONU and reasonable The information to be sent to the ODN is arranged locally; the ODN interface function provides a series of optical physical interface functions, including optical/electrical and electrical/optical conversion.
If each ONU uses more than one optical fiber to connect to the ODN, then there is more than one physical interface. The ONU service function block provides user-side functions, which includes providing user service interfaces and adapting user information to the form of 64kbit/s or n×64kbit/s; this function block can serve one or several users and can be based on The physical interface provides signaling conversion function. ONU general function blocks provide power supply functions and system operation, management and maintenance (OAM) functions. The power supply function includes AC to DC or DC to AC, and the power supply mode is local power supply or remote power supply. Several ONUs can share a power supply. ONUs should also work normally when powered by a backup power supply.
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