And in the future, the development of simple technology is very fast, will use this thing
I personally think that the industry is good only for reference
What is the two-dimensional code? In fact, it is an "upgrade" of the bar code often used in shopping malls. Through it, the computer can easily enter the commodity information, the bar code used in the mall in the industry is called "one-dimensional code", in the use of people found its limitations, and gradually improve, the current two-dimensional code is born on this basis. "In fact, they are collectively called 'barcode', and barcode is a very important aspect of automatic identification technology. In automatic identification technology, in addition to barcode, there are magnetic card technology, sound and visual recognition, IC card technology and so on. For example, the transportation card used for taking the subway and the door card used for entering the designated company are the applications of automatic identification technology in life. As for its role, it is like the "eyes" of the computer, so that the information that needs to be recognized can be easily entered into the computer system. "However, compared with other automatic identification technologies, barcode can be said to be one of the most economical and practical automatic identification technologies so far. Its advantages are: fast input speed, high reliability, flexible and practical, easy to make bar code labels, collect large amounts of information. The traditional one-dimensional bar code can collect information of dozens of characters at a time, and the two-dimensional bar code can carry information of thousands of characters, and has certain automatic error correction ability. Barcodes have unique advantages in the field of mass consumption. Barcode can record a lot of information, such as the country of production of goods, manufacturer, product name, date of production, book classification number, place of origin and destination of mail, category, date, etc. Therefore, it has been widely used in many fields, such as commodity circulation, book management, postal and telecommunication management, banking system, etc. 1D vs. 2D code 2D code, as the " upgraded version" of the barcode, is different from the 1D code in that it is the same as the barcode. What are the differences between QR code, as the "upgraded version" of barcode (1D code), and 1D code? This article compares them in terms of appearance, recognition and application status. 1D code: black and white rectangular stripes of different thicknesses, usually with English characters or numbers under the stripes. Two-dimensional code: black and white, different thicknesses of dot matrix graphics, Lonpei code also set the proportion of the shape at will. ● Principle 1D code: Identified by the different spacing of black and white parallel lines. 2D code: The information is stored by the black and white dots of different sizes. ● Identification 1D code: Basic information such as the name of the product and its price can be quickly learned about the object to be identified. However, a 1D code can only identify the product, but not describe it, just as it knows that what it identifies is the code name of an item in a computer, but it cannot determine whether it is "Zhang San" or "Li Si," and it does not know the difference between the two. QR code: Not only can it identify, but it can also easily describe the information of the object. For example, if it is applied to a document, after it is scanned by the relevant equipment, the name, age, and even the position of the document holder, and whether or not he/she has any previous convictions, etc., will quickly appear in the computer, and there is no need to wait for the computer database to confirm this information as in the case of the one-dimensional code. Advantages 1D code: 1, currently used very widely, especially in the field of mass consumption. 2, the cost is low, one identification machine can be used to identify the identity of a person, but not to identify the identity of the person. 2, the cost is low, the price of an instrument to identify one-dimensional code is only a few hundred dollars. At the same time, the technology continues to mature, and now there is a national standard. Two-dimensional code: 1, high density. The information density of the barcode is improved by utilizing the vertical dimension. Usually its density is tens to hundreds of times that of a one-dimensional barcode , representing thousands of bytes of data. This allows us to store all the product information in a two-dimensional bar code, so there is no need to establish a database in advance. 2, with error correction. Error correction function makes the two-dimensional code due to perforation, dirt and other causes of local damage, but still can be read correctly. 3, not erasable. Once the data is stored in the two-dimensional code, it can not be re-modified. In many automatic identification technology, only two-dimensional code has this specialty, therefore, very safe and reliable. 4, can represent a variety of text. In addition to numbers and English characters, QR codes can also encode a variety of languages. For example, QR codes can encode Japanese characters, and Lombard codes can directly encode Chinese characters. In addition, QR codes can digitally encode photos, fingerprints, palm prints, voices, and other content. Disadvantages 1D code: 1. The amount of information it can contain is small, only dozens of characters, and it can only use English characters or numbers. 2. 2、Application needs to be combined with computer database. Two-dimensional code: 1, the production cost is lower, but the price of scanning equipment is higher. 2、A lot of domestic enterprises are using foreign two-dimensional code system, but need to pay the high authorization fee may be as high as a few million U.S. dollars, relatively speaking, domestic research and development and has the world's advanced level of two-dimensional code system ---- Long Bei code, there is no such problem. Application 1D code: widely used in post and telecommunications, banks, chain stores, libraries, transportation and major enterprises and institutions. Two-dimensional code: nowadays, it is widely used in foreign developed countries in the fields of banking, logistics, national defense, customs, taxation, public **** security, transportation, and civil commodities. For example, Japanese QR code is often seen on Japanese auto parts, American Data Matrix code is more often used in Europe and the United States on electronic products, and the Chinese own QR code ---- Longbei code has been widely used in document anti-counterfeiting, product anti-counterfeiting and anti-tampering and electronic ticketing, and is being promoted for use in 127 airports and the whole army. Unlike other domestic companies that act as agents for foreign QR code products, Shanghai Longbei Information Technology Co., Ltd. is the only enterprise that masters the core technology algorithm and develops related products independently, which is an integrated enterprise of "research, production and marketing". Therefore, Longbei code is a technology in which the people of China fully own the intellectual property rights. It is compatible with a variety of domestic and foreign 2D code standards, can be encoded in many different languages, and has designed a mutual translation system that can be used in as many as 32 languages. The code can be encoded not only in multiple languages, but also in multiple languages. That is to say, it is possible to encode more than two languages at the same time in the same code. The Lombard code is based on English or Chinese as the resident system, and can be used in one other language of choice. For countries where a single language is used, such as China, English-Chinese, Germany, English-German, etc., this feature is particularly useful for identification systems. This function is especially valuable in the application of identification system. Ltd. and Shanghai Longbei Information Technology Co., Ltd. in the field of mobile e-commerce electronic discount coupon business, to form a strategic partnership, to become the designated partner of Longbei code technology products in this field, *** with the promotion of electronic discount coupon business products market development. At the same time to carry out in the electronic transaction receipt (voucher) business and electronic VIP business comprehensive cooperation, *** with the development. Ltd. is the first high-tech company in the Chinese market that applies QR code recognition technology and mobile data technology (MMS, SMS, WAP) to the value-added service business of e-VIP and e-discount coupon. It operates an e-discount coupon portal - "City Discount Online" (www.zhkonline.com), which is a bridge between corporate discount information release and consumer discount shopping options. It is a bridge between corporate discount information distribution and consumer discount shopping options, enabling businesses to distribute their promotional discount information in a targeted and efficient manner on this professional platform, and consumers to search for high-value information on this platform safely and conveniently, and to obtain discount benefits conveniently and easily. At the same time, Huayang ICT has also developed a set of "Discount Pass" e-VIP service system, which is a professional system specialized in handling electronic VIP cards and information management for enterprises' VIP/membership customers, replacing and supplementing the original PVC or paper tangible cards, and generating paperless electronic VIP/membership cards with the core of QR code recognition technology and MMS integration application. The system is centered on the integration of QR code recognition technology and MMS to generate paperless electronic VIP/membership cards, and takes wireless data communication mode (MMS, SMS) as the information exchange channel to scientifically realize the efficient and low-consumption issuance and validation of VIP/membership cards to VIP customers and members, paperless transactions, and user data collection and management by means of electronic information.