United States Department of Transportation
i
Infrastructure Connectivity Certification Test Procedures for Infrastructure-Based Connected Automated Vehicle Components: Signal Phase and Timing – SAE J2735
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2019-12-23
[PDF-467.26 KB]
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Edition:Test Procedures January, 2019–December, 2019
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Abstract:The successful deployment and operation of connected vehicle systems will require that devices, systems, and applications developed by different providers are compatible, interoperable, non-interfering, and in some instances, perhaps, interchangeable. Some devices, systems, and applications, such as active safety applications, may be required to meet minimum operational performance standards. A list of questions was distributed to potential stakeholders to gather information on which aspects of the industry should be considered for certification. The results were compiled and consolidated into a list of recommendations that yielded three applications to be addressed under this project. This document contains the test plan for one of the three applications. The scope of the test cases contained in this document is to evaluate a signal phase and timing (SPaT) generation device output over available technology and test the format, structure, and encoding of the SPaT message. The Society of Automotive Engineers (SAE) J2735 standard governs the SPaT format and structure. The message is represented in the Abstract Syntax Notation One (ASN.1) format, which is UPER Hex encoded for broadcast. The scope for testing includes various mandatory data elements and their corresponding values and verification of the various format conversions.
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