Abbreviations

Results for area 9.3 Communication

term
reference point
definition

data flow between two function blocks, where protocols define the information flow across the reference point

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term
electronic data interchange (EDI)
definition

passing of a data message, or series of messages, between computers and/or between different software systems

NOTE Within this context an EDI message is normally compatible with the form specified in ISO 9897. EDI is an instance of an EDT transaction.

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term
electronic data transfer (EDT)
definition

the passing of data sets comprising an entire message from one computer to another or from one software system to another

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term
ERI session
definition

an instance of a ’Vehicle Identification’ using a harmonised air interface protocol known as ‘CEN DSRC profile’, using a distinct set of ‘AVI/AEI attributes’, retrieved by ‘service primitives (communication)’ and ‘security mechanisms’

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term
ERI transaction
definition

transaction as defined in ISO 24534-4

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term
registration procedure
definition

procedure for registration as defined in ISO/TS 24534-3

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term
read/write cycle
definition

complete sequence of interaction by the reader/interrogator where the OBE is unambiguously identified and new data, comprising either whole or part of the full data set, is written onto the OBE by means of the air interface

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term
carrier signal
definition

electromagnetic signal that can be modulated to carry lower frequency encoded information across an air interface

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term
shadowing
definition

condition where the close proximity of a vehicle/equipment interposed between FE and OBE obscures the signals, thus preventing a successful AVI/AEI transaction

NOTE The shadowing caused by normal traffic behaviour is taken into account and overcome to provide a successful transaction. Abnormal shadowing may be caused by large or unusually shaped vehicles/equipment or by vehicles travelling too closely together.

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