ISO IEC 15423:2009 pdfダウンロード

ISO IEC 15423:2009 pdfダウンロード。Information technology — Automatic identification and data capture techniques — Bar code scanner and decoder performance testing
1 Scope
This International Standard defines the test equipment and procedures to be used to determine the performance of bar code scanning and decoding equipment. It deals with bar code scanning and decoding equipment both as integrated reading systems and as discrete units. It defines performance of the equipment in a particular configuration (e.g. a specific model) irrespective of the individual components used. It also defines in a normative annex operational parameters for the test equipment, and describes, in an informative annex, a means of classifying scanners.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 15415, Information technology — Automatic identification and data capture techniques — Bar code print quality test specification — Two-dimensional symbols
ISO/IEC 15416, Information technology — Automatic identification and data capture techniques — Bar code print quality test specification — Linear symbols
ISO/IEC 15417, Information technology — Automatic identification and data capture techniques — Code 128 bar code symbology specification
ISO/IEC 15424, Information technology — Automatic identification and data capture techniques — Data Carrier Identifiers (including Symbology Identifiers)
ISO/IEC 15426-1, Information technology — Automatic identification and data capture techniques — Bar code verifier conformance specifications — Part 1: Linear symbols
ISO/IEC 15426-2, Information technology — Automatic identification and data capture techniques — Bar code verifier conformance specification — Part 2: Two-dimensional symbols
ISO/IEC 15438 Information technology — Automatic identification and data capture techniques — PDF417 bar code symbology specification
ISO/IEC 16022 Information technology — Automatic identification and data capture techniques — Data Matrix bar code symbology specification
ISO/IEC 16388, Information technology — Automatic identification and data capture techniques — Code 39 bar code symbology specification
ISO/IEC 19762-1, Information technology — Automatic identification and data capture (AIDC) techniques — Harmonized vocabulary — Part 1: General terms relating to AIDC
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19762 and the following apply.
3.1
contact scanner
particular type of scanner in which the scanning action takes place with the scanner in actual or near contact with the symbol, e.g. wand or light pen
3.2
decode redundancy
acquisition of a predetermined number of identical decodes before acceptance by a decoder of a valid decode EXAMPLE Decode redundancy of 2 requires two identical decodes.
3.3
exit window
datum point from which the reading diagram is measured, positioned on the beam midpoint and closest to the reading end of the scanner
3.4
maximum reading distance
distance from the exit window to the end of the depth of field
NOTE See R in Figure 2.
3.5
minimum reading distance
distance from the exit window to the beginning of the depth of field
NOTE See A in Figure 2.
3.6
raster distance
distance between the two most widely spaced adjacent scan lines projected on a plane at a defined distance from the scanner exit window
NOTE See E in Figure B.3.