How to choose a barcode data collection terminal?
in
There are many kinds of barcode data collection terminal, which is best for small company in inventory?
Answer:
I do the inventory on my PDA every month 'Coz the Bluetooth barcode scanner I bought can send barcode data it scanned to my phone.
It's rather convenient 'Coz now I can check out the stock anytime I want. O(∩_∩)O
The model no. of the scanner I bought is SL-MS30A. You can search it.
The brand name is SUMLUNG I think, if I spell it right.
It's a bargain I must say. The battery life is more than 65 hours! Amazing!
How to scan drawings into computer with an HP deskjet?
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Everytime i try to scan one of my drawings into the computer it always copys it. Help?
Answer:
You have to press the SCAN button, not the COPY button!! It will only copy if you are pressing the copy button. Take your time and read the directions that came with the machine, that should help! Good luck!
How to choose wireless barcode scanner? What is important to consider when I'm buying?
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How to choose wireless barcode scanner? What is important to consider when I'm buying some?
Answer:
Function & Price
The reader types can be distinguished as follows:
Pen type readers
Pen type readers consist of a light source and a photodiode that are placed next to each other in the tip of a pen or wand.To read a bar code, the tip of the pen moves across the bars in a steady motion. The photodiode measures the intensity of the light reflected back from the light source and generates a waveform that is used to measure the widths of the bars and spaces in the bar code. Dark bars in the bar code absorb light and white spaces reflect light so that the voltage waveform generated by the photo diode is a representation of the bar and space pattern in the bar code. This waveform is decoded by the scanner in a manner similar to the way Morse code dots and dashes are decoded.
Laser scanners
Laser scanners work the same way as pen type readers except that they use a laser beam as the light source and typically employ either a reciprocating mirror or a rotating prism to scan the laser beam back and forth across the bar code.As with the pen type reader, a photodiode is used to measure the intensity of the light reflected back from the bar code. In both pen readers and laser scanners, the light emitted by the reader is tuned to a specific frequency and the photodiode is designed to detect only this modulated light of the same frequency.
CCD Readers
CCD readers (also referred to as LED scanner) use an array of hundreds of tiny light sensors lined up in a row in the head of the reader. Each sensor measures the intensity of the light immediately in front of it. Each individual light sensor in the CCD reader is extremely small and because there are hundreds of sensors lined up in a row, a voltage pattern identical to the pattern in a bar code is generated in the reader by sequentially measuring the voltages across each sensor in the row. The important difference between a CCD reader and a pen or laser scanner is that the CCD reader is measuring emitted ambient light from the bar code whereas pen or laser scanners are measuring reflected light of a specific frequency originating from the scanner itself.
Camera-Based Readers
2D imaging scanners are the fourth and newest type of bar code reader currently available. They use a small video camera to capture an image of a bar code. The reader then uses sophisticated digital image processing techniques to decode the bar code. Video cameras use the same CCD technology as in a CCD bar code reader except that instead of having a single row of sensors, a video camera has hundreds of rows of sensors arranged in a two dimensional array so that they can generate an image.
There are a number of open source libraries for barcode reading from images. These include the ZXing project, which reads one- and two-dimensional barcodes using Android and JavaME, the JJIL project, which includes code for reading EAN-13 barcodes from cellphone cameras using J2ME, and Zebra (Changed name to ZBAR?), which reads various one-dimensional barcodes in C. Even web site integration, either by image uploads (e.g. Folke Ashberg: EAN-13 Image-Scanning and code creation tools) or by use of plugins (e.g. the Barcodepedia uses a flash application and some web cam for querying a database), have been realized options for resolving the given tasks.
Omni-Directional Barcode Scanners
Omni-directional scanning uses "series of straight or curved scanning lines of varying directions in the form of a starburst, a lissajous pattern, or other multiangle arrangement are projected at the symbol and one or more of them will be able to cross all of the symbol's bars and spaces, no matter what the orientation."
Omni-directional scanners almost all use a laser. Unlike the simpler single-line laser scanners, they produce a pattern of beams in varying orientations allowing them to read barcodes presented to it at different angles. Most of them use a single rotating polygonal mirror and an arrangement of several fixed mirrors to generate their complex scan patterns.
Omni-directional scanners are most familiar through the horizontal scanners in supermarkets, where packages are slid across a glass or sapphire window. There are a range of different omni-directional units available which can be used for differing scanning applications, ranging from retail type applications with the barcodes read only a few centimetres away from the scanner to industrial conveyor scanning where the unit can be a couple of metres away or more from the code.
Omni-directional scanners are also better at reading poorly printed, wrinkled, or even torn barcodes.
How to scan paper pictures onto a computer?
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Can someone walk me through the steps on how to take paper pictures and scan them onto a computer? And once this is done, can I send them as an attachment in an e mail like you would any other picture?
Answer:
You need an Scanner Machine to scan pictures.
And yes, once you have scanned it, you can send it as an attachment in an e-mail.