Design Of Remote Control System For Score Display Card Based On Portable Tablet Computer

Remote control digital wireless scoreboard is a very important equipment of the football game and other modern sports events.Based on the portable Tablet PC,scoring signs, as well as timing and other functions can be realized by a remote control system by using Tablet PC’s Bluetooth to transfer information from wireless digital module to remote-controlled LED score sign.This article focuses on the client interface design, bluetooth communication, LED score sign single-chip microcomputer control and display function. Compile application software based on the Android system and Eclipse development environment, complete the Tablet PC remote scoring display.Using ZC701 bluetooth module to connect with APC220-43 wireless digital module through the properly design of interface.The wireless module control LED sore board what realized using the Tablet PC to control it in the range of about 300 meters. Realize the remote control LED score sign by STC12C5A60S2 microcontroller through the UART serial port to communicate with the wireless module. And control of the game both teams score (4-digit LED, remote control optional multi-value add, subtract points) and Countdown (4-digit LED, Can remote control switch display the current time or time remaining) display and display brightness adjustment. This paper completed the scoring display board microcontroller hardware and the corresponding software design, wireless transmission design-ins and Android Tablet PC client program design.Experimental debugging shows that the completed remote control system can reliably achieve the application that based on using the portable Tablet PC to control the LED scoring sign. The design has the characteristics of data transmission stability, and quick reaction. In the case of testing a total of 200 times, remote control scoring success rate is above 99%; Users in the tablet of the man-machine interface click on the corresponding function keys,LED scoreboard timely response, don’t see the phenomenon of delay. In addition, the system also has the characteristics of a friendly man-machine interface, easy operation, low cost, the overall price high.