What Are the Different Uses of QR Codes?
QR code is a kind of two-dimensional bar code. QR comes from the abbreviation of Quick Response in English, which means fast response. It comes from the inventor's hope that the QR code can make its content be decoded quickly. QR codes can store more information than ordinary barcodes, and there is no need to align the scanner straight when scanning like ordinary barcodes.
QR code
- "QR" of QR code is short for Quick Response. This QR code can be read quickly, compared to previous barcodes,
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- QR codes were originally designed to make it easier to track parts in car manufacturers. Today, QR codes are widely used in inventory management in various industries. Users can also set
- Compared with other two-dimensional codes, QR codes have the advantages of faster reading speed, larger data density, and smaller space. There are three image-finding patterns on the three corners of the QR code. The position, size, and tilt angle of the code are detected using a CCD reading device and decoded to achieve 360-degree high-speed reading.
- Using a camera phone with more than 300,000 pixels, and the QR code decoding software in the phone, once the QR code is photographed, the decoding software will automatically interpret this information and display it on the phone screen. There are also cameras that use Webcam to decode, and it is expected that all technology products with lenses will be imported into this QR code mechanism in the future. In addition, QRDOOR and QuickMark provide PC version of QR code decoding software, so that users without camera phones can directly intercept the QR code on the screen through the PC version of QR code decoding software to obtain relevant information, so that general mobile phone and PC users can also Can experience the convenience brought by QR code. [1]
- The mobile phone navigation technology using QR code and GPS allows users to simplify the process of inputting the target position in the mobile phone. Just by taking a picture of the mobile phone through the QR code, the geographic coordinates can be stored in the mobile phone in time.
- To commemorate the 150th anniversary of Hong Kong's stamp issue, Hongkong Post will issue a set of six commemorative stamps and a special stamp sheetlet. This set of stamps also introduces today's popular QR codes. As long as the QR code on the stamps is scanned with a camera phone containing related applications, you can immediately connect to the "150th Anniversary of Hong Kong Stamps Issue" webpage with your mobile phone to view stamp information.
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