Tuesday, May 28, 2013

Know of the Distinction Between Linear (1D) And 2D Bar code scanners

Bar code scanners have assisted companies streamline their business processes, improve labor force productivity, and get greater operational efficiency. Bar code scanners happen to be effectively integrated running a business processes across various industries to improve their effectiveness, speed, and precision for better a person experience. Bar code scanners mostly are categorized into two sorts: Linear or 1D bar code scanners and 2D bar code scanners. Each barcode type is chosen according to relevant business needs to satisfy the finish objective. A barcode system includes a scanner, a barcode label, a printer, as well as an exterior database.

Linear Bar code scanners:
Linear or 1D bar code scanners includes parallel black bars and whitened spaces that may represent any kind of data. UPC, Code 128, and Code 39 are the common 1D symbologies presently used.

Stores data only in horizontal direction
The bars and spaces in linear bar code scanners are arranged together to represent a particular ASCII character or perhaps a number digit. Because the linear bar code scanners consists of only vertical bars and spaces, the information could be saved only in horizontal direction. Whilst reading through the information from linear bar code scanners just the width from the bars and spaces is recognized as. Thus, linear bar code scanners will also be known as you-dimensional bar code scanners.

Stores a smaller amount data
Linear or 1D bar code scanners store a more compact quantity of data, usually as much as 12 or 20 numbers. The linear or 1D bar code scanners contain information, that when scanned is matched up with relevant data saved in local or central database resulting in retrieval of a lot of details about the product scanned.

Cannot retrieve data when removed or broken
Among the disadvantages of linear bar code scanners is it is tough to retrieve saved data once the barcode label is broken or poorly printed. Addition of merely one extra line in the beginning or finish of barcode can impair the readability from the linear barcode. A little tear or drawing a line with the barcode parallel to bars can disturb the decoding formula that causes it to be hard to retrieve or read data.

2D Bar code scanners:
Two-dimensional bar code scanners convey more data representation capacity and may contain more in depth information. 2D bar code scanners could be inside a matrix or stacked format. Stacked-bar code scanners are just like some linear bar code scanners literally stacked on the top of one another. PDF417 is the greatest illustration of a stacked barcode. Matrix codes comprise a design of cells that may be square, hexagonal, or circular fit and therefore are similar to look at to checkerboards. Data Matrix and MaxiCode are a couple of generally used matrix bar code scanners.

Store data in vertical and horizontal direction
Two-dimensional bar code scanners have bigger data storage capacity because the information is saved both in vertical and horizontal directions from the barcode. As opposed to the 12-20 figures that the typical linear barcode can store, 2D symbologies can scribe as much as several 1000 figures of machine readable data.

Stores large data
The quantity of data that may be saved in 2D bar code scanners can achieve as much as 1000's of alphanumeric data. The 2D bar code scanners ensure faster information systems as it can certainly behave as a database itself storing all of the necessary data. They are able to condense the data from numerous linear bar code scanners right into a single 2D barcode thus saving considerable space. The necessity to have exterior database is removed as accurate information could be caused by the merchandise itself. By supplying access immediately to large saved data, 2D bar code scanners could make business process faster, accurate, less pricey, and reliable.

Simple to retrieve data when removed or broken
Unlike 1D bar code scanners, 2D bar code scanners might have error correction formulas included in the symbol which permit data to become retrieved even when the barcode is broken. Actually, a good portion from the area could be broken and also the information it's still intact. For instance, some 2D symbols can lose up to and including third of their surface but still be decoded. The Mistake Correction Code (ECC) has capability to rebuild the information from parts of barcode that's been broken and deliver consistent correct information. Also, 2D bar code scanners printed on hard surfaces uncovered to rugged or harsh conditions can be simply read by 2D barcode scanning devices.

Both 1D and 2D bar code scanners ensure functional enhancement of economic process, efficient automated data collection, and processing of huge levels of data with precision across any industry. You will find numerous things to consider, like symbology compliance to industry specific standards, amount and kind of information to become encoded, etc., before determining on which kind of symbology to make use of.

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