Table of Contents
What means quiet zone?
A quiet zone is a stretch of at least a mile and a half that may have several public grade crossings at which train horns are not routinely sounded. – Trains must be permitted to sound the horn if a car, human, animal, or other objects are on the tracks.
How much white space do you need around a barcode?
The popular QR Code that is being used in marketing materials recommends a white space of 4 times the size of a module (that is the size of one of the black squares within the code) on all four sides of the code.
What are the parts of a barcode?
A bar code symbol typically consists of five parts: a quiet zone, a start character, data characters (including an optional check character), a stop character, and another quiet zone. A barcode reader is used to read the code.
What do different barcodes mean?
There are two types of barcodes: linear – or 1D, and 2D. The first six numbers of the barcode is the manufacturer’s identification number. The next five digits represent the item’s number. The last number is called a check digit which enables the scanner to determine if the barcode was scanned correctly.
Why was the quiet zone established?
In 1994, Congress enacted a law that required FRA to issue a Federal regulaon requiring the sounding of locomove horns at public highway-rail grade crossings. It also gave FRA the ability to provide for excepons to that requirement by allowing communies under some circumstances to establish “quiet zones.”
How many people live in the quiet zone?
Green Bank and the surrounding towns — the total population in the area is around 8,000 people — may seem idyllic. But it’s also definitely strange. Because of the lack of cellphones, locals find creative ways to communicate with each other.
Does a barcode need to be on a white background?
While black bars on a white background are a very good combination, your barcode does not have to be black and white. The colour chosen must appear black under red light, so blue and green are possible options.
Does the size of a barcode matter?
Adjusting the height of the barcode does not affect its scanability because the width is not affected by this change. In general, you should leave the height at its default option unless there’s some specific reason to change it.
How do I know if my barcode label has quiet zones?
If you see white space on both sides of the pencil, then your barcode label has plenty of quiet zone, but be sure to check both ends (quiet zones) of the barcode symbol. Quiet zones for two dimensional (2D) barcodes are calculated differently.
What is a quiet zone and why do I need one?
A quiet zone is needed because any information near the barcode could confuse a scanning device, which is making complex measurements in the time it takes a person to blink an eye. No quiet zones may cause the scanner to read the product inaccurately or not read the barcode at all.
What should I do if the space around the barcode is unresponsive?
If the space around the barcode has not been designed to allow for an adequately-sized quiet zone, simply increase the size of the area around the code. If there is a blemish or defect in the quiet zone, you should re-print or re-mark the symbol after eliminating potential causes of the defect.
What is the size of the Quiet Zone of a symbol?
As a general rule, the quiet zone should be a minimum of 10 times the width of the narrowest bar. In 2D symbols, the quiet zone is the space surrounding the entire symbol.