Design And Impiementation Of Low-power Wireless Seat Screen System

In order to achieve wireless conference system of the paperless, environmental protection, convenience and multi-function, this completely satisfies the various demands of a large conference. The paper developed a new type of Low-power conference screen display control system, it adopts low-power design and communicates easily, and the master board obtains the communication-display data and sends it to the slave board through the wireless module nRF905. After receiving data, the slave board drives the LED dot matrix display and the LCD screen to display, simultaneously, the system can read RF card information of the participants and complete the statistics of sign-in and sign-off.The main contents are as follows:1. Analysis of the technical features of conference seats screen control system, combined with the physical environment of the project of conference venue, proposed a design based on the MSP430F149low-power wireless conference seats screen control system, determined the system architecture, the communication mode and the overall control mode.2. Realization of the system hardware design, such as schematic design and PCB circuit board of the master board and the slave board, as well as the corresponding hardware integration of RFID module, nRF905wireless transmission module, LED character dot matrix module and LCD liquid crystal display module.3. Completion of the system software design, including the master board-driven nRF905wireless module, the master board with the host computer and the salve board communication; the slave board drive nRF905wireless module to receives data and impel LED character dot matrix module and LCD display module to display data; the development applications of the host computer software.4. Implementation of the system testing, and figure out a way to reduce power consumption strategy from the two aspects of the hardware and software, given the whole system many other features of easy to use, small size, low power consumption.Paper introduces the hardware circuit board design of the master board and the slave board which low-power wireless conference screen system has, the host computer data processing and software processes.