ISO 14907-2-2021 pdf free download – Electronic fee collection — Test procedures for user and fixed equipment — Part 2: Conformance test for the on-board unit application interface.
6.3.2 Functionality of tester6.3.2.1 Reference beacon
The beacon shall be a transparent physical layer interface for DSRC according to European orInternational Standards.This means that it shail be able to operate standardized data profiles ofDSRC links. A simple beacon may be used that only sends and receives frames to or from the DUT.Thecommunication is controlled by the application and data link process of the tester.
Beacon parameters, for example, the transmitting power, shall be adjustable by the tester.6.3.2.2Application and data link process
The tester shall be able to operate the communication link in real time according to data link layerfunctionality of European or International Standards.The process shall provide the connection to thetest control and observation process and shall control the sending and reception of frames to and fromthe beacon.
6.3.2.3Test control and observation processes
The test control and observation processes shall be implemented on an appropriately equippedcomputer system.The processes shal comply with the definitions of the application and data link layersdefined by European or International Standards and shall be able to generate test suites in reference toISO 14906. The control process shall provide functionality to configure the test bed, to generate testsuites and to perform test suites.
EXAMPLE Test suites can be generated in plain ASCll format and can be retrieved by the real-time controlprocess via FTP.
While the tests are being performed, all events shall be observed by the Po0 process.All results shallbe documented, visualized and be made available for detailed analysis.
6.3.3 Conformance testing
The tests performed by the tester shall be able to concentrate on EFC-communication protocol aspects,which are:
— initialization phase (BST-VST exchange);
— application layer services in accordance with EN 12834;
— EFC functions and services in accordance with ISO 14906;
— EFC data and parameters used in accordance with ISO 14906; and
— transaction phase (logical sequence).
The DUT shall be operated in a controlled environment according to the manufacturer’s instructions.
All test suites shall be generated corresponding to the specification of the manufacturer, which shall describe the behaviour of the DUT in terms of expected messages from the beacon and intended answers from the DUT. The communication sequence shall be unambiguously defined.
The test generation tool shall be able to check the messages against the European or International DSRC standards. All events of a DUT are stored by the tester.
The test suites generated shall strictly correspond to the European or International DSRC standards and to ISO 14906. The results of the tests shall only be related to the IUT of the DUT. Only the correctness of the implementation shall be tested, and any assessment of performance, robustness or reliability is excluded.The results of the tests shall be able to provide confidence that the DUT works according toICS, the underlying DSRC standards and to ISO 14906, within the scope of the performed tests.
6.4Test documentation
6.4.1 Generalities
The test documentation shall provide comprehensive information of the tester used, the DUT, the testscarried out, and the gathered test results.
6.4.2Tester
All relevant information and specifications of the tester used shall be documented in the test report.The ICS and the IXIT shall be provided by the manufacturer or supplier of the DUT.The ICS and IlXIT shalldescribe all the capabilities and limitations of the DUT according to Annex A and Annex B, respectively.
6.4.3 Test methods and test cases
A test suite is required which covers all implemented and specified functions of the DUT to be testedbased on the provided ICS and IXIT.Completeness and correctness of the test suite is required to verifyconformity between lUT and specification, including the referenced standards.ISO 14907-2 pdf download.