Homework 9/22/2007
1. Read and then comment on the following papers.Yao-Jen Chang, Shih-Kai Tsai, Tsen-Yung Wang Wayfinding Systems Based on Passive RFID for Individuals with Cognitive Impairments Yao-Jen Chang, Tseng-Yun Wang, Yu-Chia Chuang, Shih-Kai Tsai, “Ontology-based Personalized Wayfinding System Using Deviation Detecting for Individuals with Cognitive Impairments” to be presented in International Conference on Convergence Information Technology 2007, Gyeongju, Korea. November 21~23, 2007. (EI)
A1:此二篇paper主要在針對Wayfinding(路向導航系統),在RFID方面:可以置入在不同的物件和地標上,利用行動通訊傳遞資料,不受空間和時間的限制,不僅操作容易、入門門檻低,且成本便宜,在最短的時間告知系統可讓受信者做出最快的反應,如果再加上語音的部分,那對於視障者更是有很大的幫助。在Q-Code方面:雖然Q-Code是較新的國際式二維條碼,能辨識率也極高,但終究是個條碼類產品,在使用人員無法親自以Reader去做辨識時,便失去它的作用,很明顯的,這在視障者的導航之中最明顯!綜觀:在我的觀點裡,作為Wayfinding的系統方面,還是以能自動發射的RFID會較為實用,而儲位儲物的管理,或許Q-Code會是較為節省金錢支出的工具。
2. Read Sec. 1-3-6 of Textbook.What is the disadvantage of Mobile IP and what's the solution?
A2:
3. According to lecture notes on Page 2, what is social network? Why is the positioning a major factor in mobile social network service?
A3:
1 Comment:
Great comments on making comparisons between RFID and QR codes.
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