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The story of barcode collector/PDA handheld terminal

The story of barcode collector/PDA handheld terminal

As early as the 1920s, John Commander made barcode marks on envelopes. The information in the barcode was the recipient's address, which is similar to today's zip code.

Design scheme: 1 bar represents the number "1", 2 bars represent the number "2", and so on.

Bar code identification reading device: a scanner that can emit light and receive reflected light

; a method of measuring the transmitted signal bars and nulls, ie, edge-locating coils; and a method of using the measured results, ie, a decoder. Determination of "bar", "empty" with magnetic coil


In the 1940s, Joe Woodland began to study the use of pattern codes to represent food items and corresponding automatic identification equipment, and obtained a US patent in 1949. It is a pity that the craft and commodity economy at that time did not have the ability to print such codes.



A system invented by Sylvania in the 1960s and adopted by the North American railroad system. Buninck filed a patent for marking bar codes on streetcars. These two items can be said to be the earliest applications of barcode technology.


Although barcode recognition technology first appeared in the 1940s, it was widely used in the 1970s. Bar code technology is widely used in all countries in the world, and its application fields are more and more extensive, penetrating into many technical fields.


Today's barcodes on printed packaging are like economic information links, organically linking manufacturers, exporters, wholesalers, retailers, and customers all over the world. This link has been connected to the EDI system. Become a multi-dimensional information network.


In 1970, the American Supermarket Ad Hoc Committee formulated the Universal Commodity Code-UPC Code, and at the same time, many groups also proposed various barcode compliance schemes.


In 1971, the Blach company developed the Blach code and the corresponding automatic identification system. It is the first practical application of bar code technology in warehouse management system.


In 1972, Monarch Makin and others developed the Debar code, so far the American barcode technology has been included in a new stage of development.


In 1973, UCC established the UPC barcode system to achieve standardization


In 1974, De David developed the 39 code by the American Magotan Company, which was quickly adopted by the US Department of Defense as a military barcode system.


In 1976, the successful application of UPC code in the United States and Canada gave people great encouragement, and Europeans became very interested in it.


In 1977, on the basis of the UPC-A code, the European Community regulated the European article codes EAN-13 and EAN-8 codes, and established the European Coding Association EAN


But when did PDA barcode scanning begin?


"PC giant Compaq launched the iPaq series of PDAs in 2000, small color touchscreen devices running Microsoft's Pocket PC 2000 operating system (formerly Windows CE, renamed Windows Mobile in 2003). The prelude to the transformation of PDA.


First of all, the data collector, also known as the inventory machine, is a terminal computer device that integrates the barcode scanning device and the data terminal, and has a battery that can be operated offline. With real-time acquisition, automatic storage, instant display, instant feedback, automatic processing, automatic transmission functions.



PDAs, also known as PDAs, are classified according to their use and are divided into industrial-grade PDAs and consumer PDAs. Industrial PDAs are mainly used in the industrial field. Common barcode scanners, RFID readers, POS machines, etc. can be called PDAs; consumer PDAs include many, smart phones, tablet computers, handheld game consoles, etc.


Handheld terminal refers to the operating system such as WinCE and Android, memory, CPU, screen and keyboard, with data transmission and processing capabilities, and its own battery, which can be used mobile.


It can be seen that in many cases, these words are not much different, and they are likely to refer to machines with the same function or application. So, for most users, how should they choose and differentiate?


Generally speaking, data collectors, inventory machines, and multi-finger barcode data terminals are mostly used for barcode collection and serial number collection, mainly for barcodes. With the popularity of QR codes, data collectors and inventory machines have gradually integrated the functions of QR codes.


And PDA, handheld terminal, often refers to the Android machine or WINCE machine. These machines are often powerful, also known as smart machines. Depending on the use case, the functionality varies greatly. Can contain one or more functions.


The basic functional modules are: barcode scanning module, RFID identification module, bluetooth module, wifi module, GPRS module, magnetic stripe card module, contact smart IC identification module (such as bank card IC identification, identity Certificate and other documents IC identification, etc.), GPS module, data storage module (ROM, RAM, FLASH, SD, TSD, EMMC, TF, USB and other modules or reading modules), printing modules, etc. The combination of various modules can derive a variety of smart machines to help end users collect and count, store corresponding data, or perform data transmission and communication.

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