What is the difference between RF technology and bar code? Conceptually speaking, the two are very similar. The purpose is to quickly and accurately identify the target object. The main differences are as follows: Is there any ability to write information or update memory. The memory of the barcode cannot be changed. RF tags are unlike bar codes, and their unique identifiers cannot be copied. The role of the tag is not limited to the field of view, because information is transmitted by radio waves, and the bar code must be within sight. Due to the low cost of barcodes and the existence of a well-developed standards system that has spread around the world, it has been generally accepted. On the whole, radio frequency technology is limited to a limited market share. At present, a variety of bar code control templates are already in use. In terms of access to information channels, radio frequency has different standards.
Radio frequency technology and bar code are two different technologies, have different scopes of application, and sometimes overlap. The biggest difference between the two is that the bar code is "visual technology". The scanner works under the guidance of a person and can only receive bar codes within its field of view. In contrast, radio frequency identification does not require seeing the target. The RF tag can be read as long as it is within the scope of the receiver. The bar code itself also has other drawbacks. If the tag is scratched, contaminated or falls off, the scanner cannot identify the target. Bar codes can only identify producers and products, and cannot identify specific products. Bar codes attached to all packages of the same product are the same and it is impossible to identify which products have expired first.
At present, in terms of cost, smart labels are much more expensive than barcodes because of different components. The cost of barcodes is the cost of barcode paper and ink, while the price of active RFID tags with memory chips is more than US$2, and the cost of passive RFID tags is also Above 1 USD. However, the price of a tag without a built-in chip is only a few cents. It can be used for situations where the data information is not so demanding, and it also has anti-counterfeiting features of anti-counterfeiting technology products that do not have bar codes.
in conclusion
RFID technology is at an early stage in China, but its development potential is huge and its prospects are very attractive. In the information society, the requirements for the acquisition and processing of various kinds of information are fast and accurate. In the near future, RFID technology will penetrate into our lives and improve our lives as much as other identification technologies. For such a new technology, we should strengthen our propaganda. We hope to popularize it as soon as possible and use it to improve our work efficiency and economic efficiency.
In contrast. I still think that the management and standardization of RFID applications need to catch up. Otherwise, many manufacturers will behave in different ways, causing fait accompli, and it will be difficult to unify management. Now that the international standards for RFID have not yet been completed, there are only a few industry standards, which brings certain difficulties to the standardization work. But from a strategic point of view. This issue is becoming increasingly urgent.
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