Smart Publicity Relations Board

Abstract

This research article proposes the design and construction of the smart public relations board with the purpose of creating a modern public relations board that has more functions than general public relations boards. The smart public relations board presented here can automatically alert the fire with a bell signal and recognize the smoke by using the smoke detectors. There is a LED projection lamp installed on the smart public relations board for providing illumination in the surrounding area of the board. In addition, there are LED bulbs that can change colors mounted on the enclosure of the smart public relations board for decoration and making it look more beautiful and distinctive. Both the LED projection lamp and the color-changing LED bulbs can be turned on and off automatically when people walk close to the smart public relations board within a certain distance, which can be recognized by motion detection devices. All the operation above uses a microcontroller as a processor to receive the signals for processing and controlling various devices. Furthermore, on the smart public relations board, there is also a 10.1-inch tablet installed for displaying the promotion messages from the data file. The test results of the operation of the smart public relations board show that it can operate according to the intended purposes. According to the experiments, the LED projection lamp and the color-changing LED bulbs turn on automatically when people approach the smart public relations board and turn off automatically when there are no people near the smart public relations board and the smart public relations board can automatically alert the fire with a bell signal when detecting smoke in the vicinity of the smart public relations board. For the tablet, it can display a variety of user-friendly information as needed. At last, it can be concluded that smart public relations board can operate efficiently according to the objectives.