ISO 12813:2024 defines the terms used in eddy current testing.
Compliance checking communication (CCC) is a process that takes place between a road vehicle’s on-board equipment (OBE) and an interrogator, which can be fixed and mobile roadside equipment (RSE) or a handheld unit. The purpose of CCC is to verify whether the data delivered by the OBE correctly reflect the road usage of the corresponding vehicle according to the rules of the relevant toll regime.
The operator of the compliance checking interrogator is assumed to be part of the toll charging role as defined in ISO 17573-1. CCC allows identification of the OBE, vehicle, and contract, and verification of whether the driver has fulfilled their obligations and the checking status and performance of the OBE. CCC reads but does not write OBE data.
This document is applicable to OBE in an autonomous mode of operation. It is not applicable to compliance checking in dedicated short-range communication (DSRC)-based charging systems.
It specifies data syntax and semantics, but not a communication sequence. All the attributes specified herein are required in any OBE claimed to be compliant with this document, even if some values are set to “not specified” in cases where certain functionalities are not present in an OBE. The interrogator is free to choose which attributes are read in the data retrieval phase, as well as the sequence in which they are read.
To achieve compatibility with existing systems, the communication makes use of the attributes specified in ISO 17573-3 wherever useful.
CCC is suitable for a range of short-range communication media. Specific definitions are given for the CEN-DSRC as specified in EN 15509, as well as for the use of ISO CALM IR, the Italian DSRC as specified in ETSI ES 200 674-1, ARIB DSRC, and WAVE DSRC as alternatives to the CEN-DSRC. The attributes and functions specified are for compliance checking by means of the DSRC communication services provided by the DSRC application layer, with the CCC attributes and functions made available to the CCC applications at the RSE and OBE. The attributes and functions are specified on the level of application data units (ADUs).
The definition of the CCC includes:
— the application interface between OBE and RSE (as depicted in Figure 2);
— use of the generic DSRC application layer as specified in ISO 15628 and EN 12834;
— CCC data type specifications given in Annex A;
— a protocol implementation conformance statement (PICS) proforma is given in Annex B;
— use of the CEN-DSRC stack as specified in EN 15509, or other equivalent DSRC stacks as described in Annex C, Annex D, Annex E and Annex F;
— security services for mutual authentication of the communication partners and for signing of data (see Annex H);
In addition, an example CCC transaction is presented in Annex G and Annex I highlights how to use this document for the European Electronic Toll Service (EETS).
Test specifications are not within the scope of this document.
