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From paper labels to QR codes to RFID. The author sorted out the three forms of labels, and compared their advantages and disadvantages.
date:2020/12/29 9:46:46 popularity:114
From paper labels to QR codes to RFID. The author sorted out the three forms of labels, and compared their advantages and disadvantages.
Several projects involved in recent work more or less require online products to perceive a large number of offline items/goods. Warehouse management requires the system to perceive incoming and outgoing goods, vehicle management requires the system to perceive incoming and outgoing vehicles, automatic cashier requires the system to perceive goods to be paid, and document management requires the system to perceive paper documents.
Perceived items are very important for products in the fields of logistics, warehousing, cashiers, and the Internet of Things. Offline items and online systems are separated, and the system must sense/collect item information to continue the subsequent process.
Since it is necessary to perceive an item, the item must first have a logo. The most primitive logo is to write important information about the item with a paper label and stick it on the surface of the item. Let’s call this label 1.0 for the time being.
The problems with this traditional label are also obvious: one is that the label is easily damaged, leading to loss of information; the other is that it is difficult to perceive items by means of informatization. Of course, it is not impossible. Later, we will talk about OCR compatibility. A traditional paper label.
Label 2.0: Barcode / QR code
The use of barcode/QR code has been deeply rooted in the hearts of the people, and we use it almost every day. Barcodes and QR codes both use black and white colors to represent binary 0 or 1, so that the graphics can be converted into 0101 binary information, plus appropriate decoding rules can represent the corresponding information.
A barcode can be understood as a line of a QR code, so it can carry less information than a QR code. Barcodes generally can only store tens of bytes, and QR codes can store hundreds of bytes of information. Moreover, the two-dimensional code is more robust than the barcode, and can still be recognized even after a small part of it is damaged.
Generate a barcode or QR code from the [asset name] [asset number] [specification model] and [department] information in the fixed asset card above, and enter the label 2.0 era ~ friendly label meeting barcode/QR code label and traditional The label is used in conjunction, and the pasted label is written with both human-recognizable text information and machine-recognizable two-dimensional code information.
Use scan code guns, mobile phones and other tools to scan the code to obtain the corresponding information, and it is also very convenient to directly write the information into the system database, and then the fixed assets can be shipped out, stored in, and inventory.
Tag 2.0 is a significant improvement in the interaction between perception and information system than 1.0, but it requires a code scanner or a handheld device as a collection device, and can only identify a single item at a time (imagine that the cashier needs to order the items at the supermarket checkout Scanning scene), the efficiency is not particularly high.
Tag 3.0: RFID
I think RFID is the closest way to user insensitivity. Although I have known RFID for a long time, I haven't actually contacted it before until I went to Decathlon and found that the automatic cash register system uses RFID technology. The experience is very good. When checking out, you only need to put the goods into a checkout basket one by one, and the name and amount of the goods will be displayed on the screen, and then you can scan the QR code to check out.
RFID, the abbreviation of Radio Frequency Identification. The RFID system requires a Tag tag and a reader reader. The tag is responsible for storing data (analogous two-dimensional codebook code), and the reader (analogous scanning code gun) is responsible for emitting radio frequency signals to form an electromagnetic field. After the tag enters the electromagnetic field formed by the reader, it will be Inspire, send your own information to the reader.