Abstract:

Using the WIFI wireless communication technology, the ARM Cortex A8 embedded system, TCP/IP protocol and WLAN monitoring technology, we design a control system of multiuser wireless projection system on Android. Establishing wireless communication between the client and the wireless projector gateway by WIFI wireless communication technology can solve the constraints of data line, and it is greatly convenient for cable projector users to use wireless projection function. The proposed system with one leader and multifollowers can implement multiuser and multiplatform wireless projection by WLAN, and it is suitable for PCs and Android mobile devices. In addition, we also describe in detail the wireless projection gateway and the design of wireless projection management software. Test results show that the system meets operating requirements.

Key words: Android;WLAN;wireless projection;multiuser;embedded system