QR Code

QR CODE

QR code stands for "Quick Response". When we go shopping, sales staff usually scan items using a barcode instead of typing in each item individually. The information accessed via the code is already stored in a database.

QR codes work in a very similar way, but typically via the internet. A QR code opens a link that plays a video or retrieves information. A phone or tablet with a camera and scanner app is required to scan it. This opens up many possibilities and has led to QR codes being used more and more frequently in marketing.

STRUCTURE AND FUNCTION OF QR CODE

The structure and function of QR codes are always the same, so every app can read all QR codes. All QR codes contain version information and the data format used. The many elements within the QR code contain the information that is transmitted to the device and its corresponding app in a user-friendly way.

The main positioning markers at three corners of the QR code serve for alignment, so that the device knows the correct order in which to read the data, as this consists exclusively of square elements arranged side by side. Two lines, connecting the main positioning markers with alternating elements, serve to synchronize and define the matrix.

The elements that have stored the information through their specific arrangement are arranged next to and below each other in the form of squares.

Since a QR code is always square, the number of individual bits in the length must be equal to the number in the height. The minimum number of elements is 21, and the maximum is 177. Within the QR code, large amounts of information can be divided into smaller squares, up to 16 in total.

Since the processing of data from mostly analog QR codes to digital devices works on the basis of visual transmission, the system is susceptible to damage from dirt or wear and tear.

For this reason, a forward error correction mechanism was integrated into the system. This mechanism allows data to be retrieved correctly even if up to 30% of the QR code is damaged.

Reading QR codes with mobile phones is also known as "mobile tagging". The advantage of QR codes is that you can... Website To find a specific advertisement you see, you don't need to Google it, but can use the QR code and the app to go directly to the relevant page.

WHY THE USE OF QR CODES OPENS UP NEW POSSIBILITIES

• The popularity and widespread use of QR codes are increasing rapidly. This could make traditional billboards more attractive again.
• QR codes are free of charge and license-free. This means that once created, a QR code can be reproduced as often as desired. However, the name "QR code" is a registered trademark and therefore subject to special protection. For this reason, an appropriate notice should be included.
• QR codes make objects interactive. As long as your user has an iPhone, Android, or tablet with a scanner app, they can access any information you've stored. This means you can offer small, discoverable extras or special features via QR codes.
• If you're currently running a contest, you can use a QR code to allow users to participate without having to type in and click on a web link. Instead, users simply scan the QR code with their devices and are automatically redirected to the corresponding website. This makes life so much easier!
• QR codes, developed in 1994 by the Japanese company Denso Wave Inc., don't necessarily have to be black and white. As long as the contrast between the two colors is strong enough for devices to recognize them, a trademarked QR code can be designed.
• Design QR codes enable the integration of Logos and graphic designs embedded in the QR code. This makes it possible to recognize the essential information, i.e., your company, with the naked eye and to retrieve detailed information using a QR reader.

CONCLUSION

A QR code (short for Quick Response) is a two-dimensional code. It stores information in the form of characters and numbers and can therefore be used for advertising purposes.