ISO/TS 21002:2021 PDF

Name: ISO/TS 21002:2021 — Road vehicles — Multidimensional measurement and coordinate systems definition
SKU: ISO/TS 21002:2021
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Road vehicles — Multidimensional measurement and coordinate systems definition

Название (английский):

ISO/TS 21002:2021

Road vehicles — Multidimensional measurement and coordinate systems definition

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 52
Дата публикации:: 15 июля 2021 г.
Издание:: ISO TS 21002 edition 1 version 1
ICS:: 43.020

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Описание (английский):

This document defines the measurement coordinate systems and presents the protocol to determine the sensor offsets to the chosen coordinate system. Finally, the method is presented how to process the sensor spherical coordinate system data to calculate the position of a dummy feature in three-dimensional space in the defined local orthogonal coordinate system.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/TS 21002:2021 - Road vehicles: Multidimensional measurement and coordinate systems definition provides a unified method for measuring and reporting 2D/3D positions from multidimensional sensors used in crash test dummies (ATDs). The Technical Specification defines measurement coordinate systems, a protocol to determine sensor offsets to the chosen coordinate system, and the method to process sensor spherical-coordinate data to compute the 3D position of a dummy feature in a local orthogonal coordinate system.

Key topics and requirements

Measurement coordinate systems: Definitions of global and local orthogonal coordinate systems fixed to dummy reference features (e.g., thoracic spine).

Sensor configuration: Covers assemblies combining one distance sensor and one or two angle sensors arranged as a (rotating) spherical coordinate system.

Zero-position protocol: Procedures and acceptance limits for establishing a sensor “zero-position” using a zero-position fixture. The fixture must be reproducible and is considered adequately accurate when dimensional tolerance stack-ups are within ±0.3 mm.

Offset and orientation handling: Definitions and procedures for offset angle, orientation angle (e.g., left/right/frontal = -90°, 0°, +90°), reference angle, and angle sensor polarity to ensure consistent sign conventions (SAE right-hand rule).

Sensor calibration and verification: Steps for sensor calibration, zero-position data collection, calculations, and verification using Data Acquisition System (DAS) parameters.

Coordinate transformation: Method to convert sensor outputs from spherical coordinates to the defined local orthogonal coordinate system and process results for dummy feature positions.

Supporting material: Informative annexes with orthogonal coordinate examples, zero-position fixtures and collection examples, mathematical background, applicable sensors, DAQ workflow suggestions, ISO MME code examples, and expected outputs.

Practical applications

Ensuring consistent, repeatable position measurement of ATD features (ribs, abdomen, thorax) during crash tests.

Standardising data processing in test labs to convert raw sensor spherical data into meaningful 3D positions in dummy-fixed coordinates.

Guiding sensor manufacturers, DAQ integrators, and ATD designers on mounting, offset compensation, polarity and orientation conventions.

Supporting post-processing software verification and regulatory or research reporting where traceable, reproducible kinematic position data are required.

Who should use this standard

Automotive safety engineers and crash test laboratories

ATD (dummy) manufacturers and instrumentation suppliers

Sensor designers and integrators for multidimensional measurement systems

Data acquisition and post‑processing software developers

Regulatory bodies and researchers working on occupant protection and impact testing

ISO/TS 21002:2021 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications

Who should use this standard

Related standards

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