Overall architecture of cloud platform-LBT - a product supplier providing customized audio and video system solutions

PRODUCT

1. Portal and Space

The platform provides exclusive platform application space functions for users at all levels, including class space, teacher space, student space, and parent space.

2. Resource based applications

The main applications of resources include personal space resource centers and knowledge networks of platform resources; Platform resources support the function of uploading large files; Support resource search, recommendation, and on-demand functions. For the convenience of the teaching platform, it is necessary to support online slicing and dot testing of video resources.

3. Online teaching and research

To improve the teaching level of teachers, the platform provides training functions among teachers, mainly including video conference function, lesson preparation function, listening and evaluation function.

4. Online Course Tour

Teachers and administrators can watch classroom live broadcasts in real time through the platform, and can also share classroom addresses with authorized users, and use observation passwords to conduct course live broadcasts.

Managers and relevant institutions can stay informed about classroom applications at any time through PC or mobile devices, watch real-time classroom scenes anytime and anywhere, and dynamically understand the actual teaching situation.

5. Mobile applications

To improve the efficiency and convenience of system usage, the platform provides WeChat mini programs that support mobile terminals such as IOS and Android.

6. STB end application

To improve the coverage of the system, the platform supports Android STB terminals, allowing users to access teaching resources on demand and watch live course broadcasts through STB.

1. Unique DCP/MOVE digital processing and transmission technology, no matter how many devices are undisturbed, all digital transmission overcomes the attenuation problem of long-distance transmission. The transmission distance of six core wire can reach 250 meters, and the transmission distance of network cable can reach 150 meters;

2. Long distance transmission has no impact on sound quality and can achieve CD level sound quality;

3. Built in environmental noise canceller (AEC), which can effectively eliminate local noise;

4. Built in digital equalization circuit, which can significantly improve the sound pressure level of the venue;

5. Built in adaptive feedback suppressor (AFC), which can effectively prevent whistling;

6. The wireless conference host interacts with voice and data through wireless transceivers, using 2.4G all digital frequency hopping (DSSS) modulation communication technology and ISM frequency band to ensure that the audio delay is less than 5.5ms;

7. The connection method adopts a 6-core DIN shielded cable or a 2-meter Category 6 Ethernet cable, which can effectively prevent electromagnetic interference to the line;

8. Optional functions (the system host supports dual machine hot backup, with strong system stability, suitable for large conference center applications);

9. Adopting ID addressing, customizable numbering, automatically detecting the online list of hosts and units upon startup, and real-time monitoring of system operation;

10. Pioneering a 4.3-inch full-color touch screen with bilingual information display in Chinese and English, with dual functions of system navigation display and centralized control; (At the request of the bidder, samples can be provided for on-site demonstration during bidding)

11. Built in voting motherboard with data management functions for check-in, voting, election, scoring, and response;

Recording Classroom

Overall architecture of cloud platform

PRODUCT