目前條碼擷取系統多以個人電腦為平台，以公眾電話交換網路(Public Switched Telephone Network, PSTN)為傳輸媒介，對於條碼擷取而言，缺乏移動性與可攜性，於是許多單位開發可攜式條碼擷取系統，其開發的裝置多以單晶片核心及封閉式作業系統，缺乏良好的人機介面及網路傳輸功能，造成使用者許多不便與限制。
為改善上述缺點，本文中探討應用Windows CE PDA(Personal Digital Assistant)平台設計一個可攜式條碼訊號擷取及無線傳輸的系統。本系統不僅擁有良好的人機介面、體積小、完整的I/O功能與彈性高的程式設計功能，最重要的是具有無線網路傳輸能力，所以使用PDA開發可攜式條碼訊號擷取及無線傳輸的系統是目前最佳的解決方案之一。
本系統將分成三部份來討論，1. PDA主機部分，2. 條碼擷取模組部分，3. 無線傳輸模組部分。
PDA主機部分，主要分析設計架構及流程，如何商品化過程。條碼擷取模組部分，將條碼經由條碼擷取器取得訊號，透過解碼器後，經由非同步式串列介面Universal Asynchronous Receiver and Transmitter(UART)或是通用串列匯流排Universal Serial Bus (USB)傳送到PDA。無線傳輸模組部分，利用非同步式串列介面(UART)或是通用串列匯流排(USB)介面連接藍芽模組(Bluetooth Module)及泛歐式數位式行動電話系統/整合封包無線電服務Global System for Mobile Communications (GSM) / General Packet Radio Service (GPRS) ，使用Compact Flash 介面連接無線區域網路(Wireless LAN) ；如何整合Bluetooth、Wireless LAN、GSM/GPRS無線傳輸系統傳送至個人電腦(PC)或公司內部資訊網路(Intranet)或網際網路(Internet) 或是虛擬專線網路(Virtual Private Network；VPN)，讓系統即時處理資訊也被討論在此篇論文中。

Nowadays the barcode signal acquisition system has adopted a PC platform and uses the Public Switched Telephone Network as a transmission media thus lacking portability. Therefore, people have developed a portable, mainly single chip core, but closed operating system of barcode reading which is limited and causes some inconvenience to end-users due to the lack of a user-friendly interface and network transmission abilities.
As an improvement on this situation, a Windows CE PDA (Personal Digital Assistant) which combines portable barcode reading and radio frequency transmission abilities will be discussed in this dissertation. This WinCE PDA has a nice user-friendly interface, is compact with complete I/O functions and a flexible programming design as well as capable of radio frequency transmissions. That is why it has become one of the best solutions at this time.
We can divide this system into three modules: the 1st PDA main system, the 2nd barcode signal acquisition module and the 3rd wireless transmission module.
The design structure, process and merchandising are analyzed in the PDA main system part. As for the barcode signal acquisition module the transmission of the scanned barcode signals, after decoding, to PDA via UART (Universal Asynchronous Receiver and Transmitter) or USB (Universal Serial Bus) will be discussed. For the wireless transmission via radio frequency, Bluetooth module, GSM (Global System for Mobile Communications)/ GPRS (Global Packet Radio Service) which can be connected via UART or USB interface, and Wireless LAN via Compact Flash Interface will be looked at. How to integrate the Bluetooth RF transmission system as well as Wireless LAN and GSM/GPRS to PCs, Intranet, Internet or VPN (Virtual Private Network) for real-time data-processing are also topics in this dissertation.

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