Standard Test Method for Exoskeleton Use: Obstacle Avoidance: Walking

SIGNIFICANCE AND USE
5.1 Obstacles can vary greatly in, for example: length, width, height, quantity, geometry, and for a variety of industries. Fig. 2 shows examples of various obstacles.  
FIG. 2 Example Obstacles in: (a) Road Construction; (b) Warehouse; (c) Manufacturing: Floor; (d) Manufacturing: Overhead; (e) Military Obstacle Course  
5.2 Exoskeletons are being used in the industrial/occupational, military, response, medical, and recreational sectors to enhance safety and effectiveness of the user to perform tasks. Many tasks involve avoiding obstacles, and may include for example, upper, lower, or full body movement in order to complete the task. As there are infinite obstacles and ways that obstacle courses can be designed, this test method addresses obstacle avoidance while walking through a standard set of obstacles. Dependent upon the task, it may require people to traverse various environmental conditions (for example, ground) and avoid obstacles while wearing an exoskeleton. For example, an exoskeleton may be used to help during construction or in medical facilities where workers in exoskeletons avoid obstacles with and without carrying loads as part of their daily activities. In military, manufacturing, and response areas, exoskeleton users may for example, step over or under, side-step between, or walk around obstacles, or combinations thereof, to perform the task at hand. Variations to obstacle avoidance may include, for example, increased user speed/momentum, load handling, and distractions that may change user performance when avoiding obstacles. The testing results of exoskeletons shall describe, in a statistically significant way (see guidance in Appendix X1), how reliably the exoskeleton is able to support tasks within the specified types of environments, confinements, and terrains, and thus provide sufficiently high levels of confidence to determine the applicability of the exoskeleton.  
5.3 This test method addresses exoskeleton safety and performance require...
SCOPE
1.1 Purpose:  
1.1.1 The purpose of this test method, as a part of a suite of exoskeleton use test methods, is to quantitatively evaluate an exoskeleton’s (see Terminology F3323) safety (see 1.4) or performance, or both, when avoiding obstacles.  
1.1.2 Exoskeletons shall possess a certain set of allowable exoskeleton user movement capabilities, including user-motion adaptability, to suit operations such as: industrial/occupational, military, response, medical, or recreational.  
1.1.3 Environments in these typical sectors often pose constraints to exoskeleton user movement to various degrees. Being able to avoid obstacles while walking, as intended by the user or test requestor, while using an exoskeleton is essential for exoskeleton deployment for a variety of tasks (for example, ascending/descending stairs, crossing gaps and hurdles, balancing on a beam). This test method specifies test setup, procedure, and recording to standardize this obstacle avoidance task for testing exoskeleton user movement.  
1.1.4 Exoskeletons need to function as intended, regardless of types of tasks and terrain complexities (for example, carpet, metal, masonry, rock, wood). Required movement capabilities may include, for example: walking, running, crawling, climbing; traversing gaps, hurdles, stairs, slopes; avoiding obstacles, on various types of floor surfaces or terrains, or within confined spaces, or combinations thereof. Standard test methods are required to evaluate whether or not exoskeletons meet these requirements while also allowing test repeatability.  
1.1.5 ASTM Subcommittee F48.03 develops and maintains international standards for task performance and environmental considerations that include but are not limited to, standards for safety, quality, and efficiency. This subcommittee aims to develop standards for any exoskeleton application as exemplified as in 1.1.2. The F48.03 test suite consists of a set of test methods ...

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14-Nov-2022
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ASTM F3584-22 - Standard Test Method for Exoskeleton Use: Obstacle Avoidance: Walking
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F3584 − 22
Standard Test Method for
1
Exoskeleton Use: Obstacle Avoidance: Walking
This standard is issued under the fixed designation F3584; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope able ways to facilitate comparison of different exoskeleton
models or exoskeleton capabilities to tasks.
1.1 Purpose:
1.1.6 The test methods quantify elemental exoskeleton use
1.1.1 The purpose of this test method, as a part of a suite of
capabilities necessary for sector applications listed in 1.1.2 and
exoskeleton use test methods, is to quantitatively evaluate an
perhaps other applications. As such, users of this standard
exoskeleton’s (see Terminology F3323) safety (see 1.4) or
should use either the entire suite or a subset based on their
performance, or both, when avoiding obstacles.
particular requirements. Users are also allowed to weigh
1.1.2 Exoskeletons shall possess a certain set of allowable
particular test methods or particular metrics within a test
exoskeleton user movement capabilities, including user-motion
method differently, based on their specific requirements. The
adaptability, to suit operations such as: industrial/occupational,
testing results should collectively represent an exoskeleton’s
military, response, medical, or recreational.
overall safety or performance, or both, as required for the task.
1.1.3 Environments in these typical sectors often pose
These performance data can be used: to guide procurement
constraints to exoskeleton user movement to various degrees.
specifications, for acceptance testing, and for training to use
Being able to avoid obstacles while walking, as intended by the
exoskeletons intended for specified applications.
user or test requestor, while using an exoskeleton is essential
for exoskeleton deployment for a variety of tasks (for example,
NOTE 1—Additional test methods within the suite are anticipated to be
developed to address additional exoskeleton capability requirements,
ascending/descending stairs, crossing gaps and hurdles, balanc-
including newly identified requirements and for new application domains.
ing on a beam). This test method specifies test setup,
procedure, and recording to standardize this obstacle avoidance 1.2 Exoskeleton—The exoskeleton shall be used as intended
task for testing exoskeleton user movement. by the manufacturer to perform the test described in this test
1.1.4 Exoskeletons need to function as intended, regardless method. If the exoskeleton is not designed for obstacle avoid-
of types of tasks and terrain complexities (for example, carpet, ance while walking and the test requestor intends to use the
metal, masonry, rock, wood). Required movement capabilities exoskeleton to perform an obstacle avoidance test (for
may include, for example: walking, running, crawling, climb- example, for research, development of obstacle avoidance-
ing; traversing gaps, hurdles, stairs, slopes; avoiding obstacles, capable use by a manufacturer, training as in military
on various types of floor surfaces or terrains, or within confined applications), appropriate manufacturer approvals should be
spaces, or combinations thereof. Standard test methods are sought prior to performing the test method.
required to evaluate whether or not exoskeletons meet these
1.3 Performing Location—This test method shall be per-
requirements while also allowing test repeatability.
formed in a testing laboratory or the field where the specified
1.1.5 ASTM Subcommittee F48.03 develops and maintains
apparatus and environmental conditions are implemented.
international standards for task performance and environmental
1.4 Units—The values stated in SI units are to be regarded
considerations that include but are not limited to, standards for
as the standard. The values given in parentheses are not precise
safety, quality, and efficiency. This subcommittee aims to
mathematical conversions to inch-pound units. They are close
develop standards for any exoskeleton application as exempli-
approximate equivalents for the purpose of specifying material
fied as in 1.1.2. The F48.03 test suite consists of a set of test
dimensions or quantities that are readily available to avoid
methods for evaluating exoskeleton capability requirements.
excessive fabrication costs of test apparatuses while maintain-
This obstacle avoidance test method is a part of the test suite.
ing repeatability and reproducibility of the test metho
...

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