使用內建電腦無線投影機改進PDA對簡報的控制

Abstract

本論文研究目的是改進目前投影機的簡報方式，將連接電腦的投影機接線與紅外線遙控器，改為由掌上型Pocket PC及內建無線網路作業系統的投影機。 在目前簡報領域中，M.S. PowerPoint文件與投影機是最常見的兩個物件，他們是由透明片及投射機所演進而來。雖然這兩種產品目前仍然延用，隨著個人電腦及輕巧可攜式投影機的普及，簡報方式已逐漸被PowerPoint文件與投影機所取代，但是繁人的投影機接線及笨重的個人電腦，總是難以使用。為了解決這個問題，我們提出以Pocket PC及內建式無線網路系統投影機的改進作法。 我們先瞭解IEEE 802.11 無線網路原理與M.S.PowerPoint Viewer的特性，及可用於Pocket PC及內建式電腦相關API 函數，並就其函數內容加以運用，並提出我們的作法。所得到的結果，可以使IEEE 802.11 無線網路介面在Ad Hoc 模式下應用於投影機上，改變目前的簡報方式。

The purpose of this thesis is to improve conventional presentation method. Our new method replaces VGA cable and Infrared remote controller by the IEEE 802.11 wireless network technology in computer-based iProjector. Slider and projector are two most useful devices in presentation. Both of them evolved from the previous traditional overhead projector. Although these two devices are still being used, yet it does not mean that they will be used forever. The speed of machine evolution is more quickly now than ever. There appear several new methods. The weight of laptop PC and portable data projector are not heavy. We find that PowerPoint document makes presentation easier. In order to be cable-free, we propose a new approach based on a PDA and wireless computer projector. We study the properties of IEEE802.11 Ad Hoc mode and PowerPoint Viewer, find out all of API functions in Personal Digital Assistant such as Pocket PC, adapt API functions, propose our idea, control it and also implement the system in an iProjector prototype. Our conclusion is getting an approach method that uses a cable-free projector in the IEEE802.11 Ad Hoc mode.