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ISO 19848 - Data standard

Standard data for shipboard machinery and equipment

Abstract:

This document applies to the structure of the ship and to shipboard machinery and equipment, and is intended for implementers of software used for the capture and processing of sensor data from the objects mentioned above.

For those purposes, this document describes the way to name the sensor, required data item, and the way to describe the data above.

ISO 19848 is a data standard, standardizing data concepts and data structures, that the ISO 19847 data server must use. The standard defines:
  • Sensor measurement data (Time Series data) in two different forms; Tabular data or Event data.
  • Sensor meta data (Data Channel Property)
  • Systematics for sensor naming (Data channel ID)

ISO 19848 defines standard methods for constructing a "local IDs" – a unique reference to a sensor on board a vessel, or a "universal ID" incorporating the IMO number, which is globally unique. The universal ID is a URI (Uniform Resource Identifier) and could be a unique URL (Uniform Resource Locator – i.e. a hyperlink) representing that particular sensor signal. The structure is flexible in that it allows different "naming rules" with associated code books to be defined by different "naming Entities".

In the initial version of ISO 19848, two naming rules were introduced, one from JSMEA (Japan Ship Machinery and Equipment Association) and one from DNV. DNV’s naming rule, called "dnvgl-vis" in the initial revision and "dnv-v2" in an ongoing revision of the standard, is based on the VIS (Vessel Information Structures) information model.

Readers who intend to implement a shipboard data server according to ISO 19847 or selected features or data structures defined in ISO 19848, should purchase the standards from their national standards organisation or distributor, such as Standard Norge (Norway) or DIN (Germany).