The Development of Modern Barcode Technology

From 1D Barcode to 2D Barcode

1. The origin and development of QR code

The origins of QR codes can be traced back to the early 1990s, when Japan's auto industry began using a type of two-dimensional barcode known as a QR code to track information on car parts. QR code is the abbreviation of Quick Response (Quick Response), and its unique design structure enables it to store more information at a faster scanning speed.

The QR Code system was invented in 1994 by Masahiro Hara of Denso Wave Corporation in Japan. The original design was influenced by the black and white pieces on the Go board.

QR Code is an image coding technology widely used in modern life. It can encode a large amount of information into a flat image, and can be decoded by devices such as scanners or smartphones. QR Code has a wide range of applications, from the commercial field to daily life, it can be seen. Includes business tracking apps and apps for mobile phone users. QR codes can be used to display text to users, open web pages on user devices, add vCard contacts to user devices, open Uniform Resource Identifiers (URLs), connect to Wi-Fi, or compose an email or text message. With the rapid development of mobile communication technology, QR Code has gradually begun to be applied in other fields, and QR Code has become one of the most commonly used two-dimensional code types.

2. The working principle and coding method of QR code

QR codes work relatively simply, consisting of a series of black and white squares. The arrangement and color combinations of these squares represent specific information. When we use a scanning device to scan a QR code, the device converts the image into a digital signal through an optical sensor, and then decodes the information contained in the QR code.

There are many ways to encode 2D barcode, the most common of which is QR Code. QR Code adopts a special encoding method, which can store a large amount of data in a limited space. In addition to QR Code, there are also various encoding methods such as Data Matrix Code and PDF417 Code, which play an important role in different application scenarios.

The QR Code is square, with a smaller square pattern resembling the word "Hui" printed on the 3 corners. These 3 patterns are to help the decoding software to locate, the user does not need to align, no matter scanning at any angle, the data can still be read correctly.

In addition to the standard QR Code, there is also a format called "Micro QR Code", which is a scaled-down version of the QR Code standard and is mainly designed for applications that cannot handle larger scans. Micro QR Codes also come in a variety of standards and can store up to 35 characters.

The Japanese QR Code standard JIS X 0510 was released in January 1999, and its corresponding ISO international standard ISO/IEC18004 was approved in June 2000. According to Denso Wave's website information, QR Code is an open standard, the specification of QR Code is open, and the patent held by Denso Wave is completely open, and anyone can use it freely without authorization.

3. Application of QR Code in the commercial field

QR Code has a wide range of applications in the commercial field. First of all, it is widely used on products and packaging. By scanning the QR Code, consumers can obtain detailed information about the product, production batch and authenticity verification, etc. Secondly, QR Code is also used for marketing and promotion. By scanning QR Code, users can obtain coupons, discount codes, event information, etc., improving the convenience and experience of purchasing. In addition, QR Code is also used in mobile payment, and users can complete the payment by scanning the QR Code of the merchant, realizing cashless transactions.

In addition to its application in product and business transactions, QR Code also plays an important role in logistics and supply chain management. By attaching QR Code to goods, logistics companies can track the flow of goods in real time, improving logistics efficiency and accuracy. In terms of supply chain management, QR Code can be used to manage inventory, track the production process of products, etc., helping enterprises improve management efficiency and reduce costs.

4. Application of QR Code in daily life

In addition to the commercial field, QR Code also has a wide range of applications in daily life. First of all, QR Code is used in the public transportation system. Passengers can enter the station or take a bus by scanning the QR Code on the ticket, which is convenient and fast. Secondly, QR Code is also used in electronic tickets and electronic vouchers. Users can scan the QR Code to verify their identity and enter the venue of concerts, exhibitions and other activities.

In addition, QR Code has also been applied in the field of education. Students can scan the QR Code in the textbook to obtain relevant learning resources, answers to exercises, etc. Teachers can use QR Code for classroom interaction, and students can participate in classroom discussions, voting and other activities by scanning QR Code.

In addition, QR Code is also used in social media and web links. Users can add a QR Code to their personal social media accounts, and others can scan the QR Code to add friends or visit their personal homepage. On web pages, QR Code is also often used to quickly share links or jump to specific web pages.

5. Future development of QR Code

With the continuous advancement of technology, QR Code has a broader development space in the future. First of all, with the popularity and speed of 5G networks, the scanning speed of QR Code will be further improved, and the user experience will be smoother. Secondly, with the development of artificial intelligence and big data, QR Code can be combined with other technologies to realize more intelligent functions, such as face recognition, intelligent recommendation, etc.

In addition, with the development of the Internet of Things, QR Code can be connected with sensors and devices to achieve a wider range of applications. For example, in the field of smart home, users can scan QR Code to control home devices, such as smart lights, smart door locks, etc. In the construction of smart cities, QR Code can be used in public facilities management, traffic management, etc., to improve the intelligence level of the city.

In addition, with the development of virtual reality (VR) and augmented reality (AR) technologies, QR Code can be combined with these technologies to achieve richer interactions and experiences. Users can scan the QR Code to enter the virtual world and interact with digital content, expanding the way and scope of information presentation.

As an image coding technology, QR Code has been widely used in business and daily life. Its origin can be traced back to the early 1990s. With the development of mobile communication technology, QR Code has gradually been applied in various fields. The working principle of QR Code is simple, and there are various coding methods, the most common one is QR code. In the commercial field, QR Code is widely used in product and packaging, marketing promotion, mobile payment, and logistics and supply chain management. In daily life, QR Code is used in public transportation, electronic tickets, education, etc. In the future, with the advancement of technology, QR Code has a broader development prospect. It can be combined with 5G network, artificial intelligence, Internet of Things, VR and AR technologies to achieve more intelligent and rich functions and experiences.

Barcode History

The lengthy process of barcode being applied

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