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Public transport. Road vehicle scheduling and control systems -- Time service
The CEN 13149 series of products concerns on-board data communication systems on public transport vehicles. This series provides for data services that enable open and managed sharing of relevant information.
This document, being Part 9 of the series, specifies a time publication, enabling all on-vehicle services to share a common understanding of current time, based on a suitable agreed master network clock. It covers:
The functional scope: i.e. which data the service provides, why, when and how often.
The transport protocol: i.e. how the data are transmitted.
The service publication: i.e. how the service can be found by other modules or applications.
The structure of the data: i.e. how the data are structured and how the data elements are named.
This document implements the service framework described in CEN/TS 13149?7.
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