1. The document introduces 1D and 2D codes, their principles of operation, advantages, and applications. It discusses barcode and QR code examples. 2. Survey results on code usage show barcodes are commonly used for shopping, websites, bills, and libraries. QR codes are used for coupons, tickets, websites, translation, and product searches. 3. The project involved designing a survey, analyzing responses, researching codes, and creating a presentation and video about 1D and 2D codes and their future applications.

1. 1D & 2D code
Development and
Application
TSANG KIN KAI - 13214020
LAU KIM FAI - 13204017
WU YIMIN - 13202804
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2. Outline
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3. Objectives
• To introduce the principle and the application of
codes
• To think about the future development by creativity.
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4. Background
• Example of Codes
• 1-D Code
• A barcode is an optical machine-readable
representation of data relating to the object to
which it is attached.
• 2-D Code
• Is a matrix code that invented based on 1-D code
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5. Principle of Operation
• Codes are using the reflectivity of color. (Black and White
have a huge difference in reflecting light.)
• White can reflect different wavelength of visible
lights, in contrast, Black can absorb all of these
visible lights.
• Reader emit the visible light to the code, then
detect the reflected lights, finally translate it to be
datum/words depended on the variable
wavelength of reflected light.
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6. Advantages of 1-D code
•
•
•
•
Reliable: One mistake occurred in 15,000 characters.
High efficiency: Read 40 characters in a second.
Lower cost: Do not need high-tech equipment to generate or read.
Easy to Generate:
Can be generated by software or application in computer/smartphone.
Usage
Goods code:
Store the prices, the details of sales/purchases, and etc.
Postal code:
Store postal content such as the recipient address.
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7. Advantages of 2-D code
• Store more complicated information than 1-D
code(Even can store pictures)
• More convenient (Hyperlinks for a specific page)
• Multi-aspect usages (Eg. Identification, Logistics, E-Banking, Public Transportation)
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8. QR code
QR code maximum storage in
Characters
Number
7,089
Letter
4296
Katakana(Japanese) 1817
Chinese
•
987
Can be read even the code is damaged (maximum 30%).
Usage
Transportation
Hyperlinks
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9. Generate by yourself
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10. QR Code development (Creative)
• Google Drive Printing (HKBU)
• 1. Upload the document to the Google drive and generate a
QR code
• 2. Show your smartphone with QR code to the printer with
code reader machine.
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11. Collected information
(Web)Yahoo Search
Search strategies
Result (Link)
"QR code application"
http://punk.tw/2007/04/03/qr-codeapplication-in-your-daily-life/
QR code Filetype:pdf
http://www.magazine.org.tw/Images
Uploaded/news/12964397036590.pdf
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12. Mind map
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13. Survey
• Survey Objectives:
• Trend of Popularity of codes
• Think about future development
• Number of responses: 29
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14. Charts and Analysis
Q12. Usage of Bar Code
Buy things
Hospital
Website
Bill payment
Library
Others
0%
20%
29%
21%
12%
18%
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15. Charts and Analysis
Q13. Code Application
Coupon Code
Tickets Code
Website Code
Words Translation
Goods Search
Others
0%
18%
27%
11%
17%
27%
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16. Charts and Analysis
Q13. Code Application
90%
80%
70%
60%
50%
Female%
40%
Male%
30%
20%
10%
0%
Coupon code
Ticket code
Website code
Words Translation
Goods searching
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17. Job Division
TSANG KIN KAI
Designed the Questionnaire
LAU KIM FAI
WU YIMIN
✔
✔
Analyzed the Questionnaire
✔
Designed the PowerPoint
Searching information
✔
✔
✔
Presentation
✔
✔
✔
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18. Youtube Video
7 November 2013