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Claims  |
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What is claimed as new and is desired to be secured by Letters Patent of
the United States is:
1. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
first setting means for setting a sequence in which said operator model
conducts a motion in said workspace, and for setting objects at which said
operator model is to gaze when said operator model conducts a motion in
accordance with said sequence; and
display means for visibly displaying on a screen a visual field area of
each of said objects which is set by said first setting means, a visual
field area being defined when said operator model gazes at an object which
is set.
2. The system of claim 1, further comprising:
second setting means for arbitrarily setting physical features of said
operator model; and
generation means for generating a new operator model on the basis of
physical features which are set by said second setting means, whereby a
visual field area for each of said objects which have been set is newly
displayed.
3. The system of claim 2, further comprising calculation means for
calculating a difference between a new visual field area obtained when
physical features are newly set, and a visual field area obtained before
the process of newly setting physical features, wherein a calculating
result of said calculation means is displayed.
4. The system of claim 2, wherein said physical features which are set by
said second setting means include a height, a sitting height, and a range
of movement of each body part.
5. The system of claim 1, further comprising:
means for changing an arrangement of objects arranged in said workspace,
whereby a visual field area for each of said objects is newly displayed.
6. The system of claim 1, further comprising
third setting means for arbitrarily setting said visual field area.
7. The system of claim 1, further comprising
fourth setting means for arbitrarily setting a sequence in which said
operator model conducts a motion in said workspace.
8. The system of claim 7, wherein the setting of a sequence in which said
operator model conducts a motion by said fourth setting means is conducted
by displaying instructions on said screen.
9. The system of claim 1, wherein a display of said visual field area
comprises a view of said operator model and is located at a position on
said screen which is outside said workspace.
10. The system of claim 1, further comprising:
judging means for judging whether or not a visual field area of an object
which is disposed in said workspace and at which said operator model is to
gaze is interfered by another object, wherein a judging result of said
judging means is displayed.
11. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
definition means for defining a task sequence of said operator model in
said workspace;
execution means for executing said task sequence defined by said definition
means;
designation means for designating objects at which said operator model
caused to conduct a motion by said execution means is to gaze;
counting means for, when said operator model gazes at an object designated
by said designation means in a task defined by said definition means,
counting a number of interferences which are introduced to a visual field
area of said object by another object; and
display means for displaying a counting result obtained by said counting
means.
12. The system of claim 11, wherein said counting result displayed by said
display means is displayed for each of said objects at which said operator
model gazes.
13. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
definition means for defining a motion of said operator model in said
workspace;
execution means for executing said motion defined by said definition means;
and
reexecution means for, when a change occurs in an arrangement of said
various objects, in said operator model, or in said motion of said
operator model, newly executing a motion which is defined in accordance
with said change.
14. The system of claim 13, further comprising: fifth setting means for
setting a position of an object disposed in said workspace at which said
operator model is to gaze in accordance with said motion of said operator
model which is defined by said definition means.
15. The system of claim 14, further comprising:
display means for displaying a visual field area in accordance with a
visual field angle which is previously set based on a position of said
object which is set by said fifth setting means.
16. The system of claim 13, wherein said change of said operator model is
conducted by changing physical features of said operator model.
17. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
first definition means for defining a reachable area of each part of said
operator model;
second definition means for defining a motion of said operator model in
said workspace with respect to one of said various objects to be reached;
execution means for executing said motion of said operator model which is
defined by said second definition means;
judging means for, when said execution means executes said motion of said
operator model, judging whether or not said one of said various objects to
be reached is within said reachable area defined by said first definition
means; and
display means for displaying a judging result of said judging means.
18. The system of claim 17, further comprising:
sixth setting means for setting a face or a position of said one of said
various objects to be reached, wherein said judging means judges whether
or not said face or position of said one of said various objects to be
reached which is set by said sixth setting means is within said reachable
area.
19. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
definition means for defining a motion of said operator model in said
workspace with respect to said various objects;
execution means for executing said motion defined by said definition means;
classifying and measuring means for classifying motions executed by said
execution means as types of motions, and for measuring the number of said
motions classified and a duration period of each of said motions; and
display means for displaying a result of said classifying and measuring
means.
20. The system of claim 19, further comprising:
calculation means for calculating a fatigue value in accordance with a
value which is previously set based on a result obtained by said
classifying and measuring means; and
display means for displaying a result of said calculation means.
21. The system of claim 20, wherein, said calculation means calculates a
fatigue value in accordance with data of a visual field angle of said
operator model during a motion.
22. A system of evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
input means for inputting conditions relating to said operator model and
said workspace;
condition storing means for storing conditions which are input via said
input means;
sequence input means for inputting a task sequence in said workspace;
sequence storing means for storing said task sequence which is input via
said sequence input means;
motion calculation means for calculating a motion of said operator model on
the basis of said task sequence stored in said sequence storing means and
said conditions stored in said condition storing means; and
display means for displaying said workspace with respect to said motion of
said operator model which is calculated by said motion calculation means.
23. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
input means for inputting conditions relating to said operator model and
said workspace;
condition storing means for storing conditions which are input via said
input means;
sequence input means for inputting task sequence in said workspace;
sequence storing means for storing said task sequence which is input via
said sequence input means;
interference judging means for conducting an interference check on a visual
field of said operator model and on interference targets in accordance
with said task sequence stored in said sequence storing means and said
conditions stored in said condition storing means;
interference counting means for counting a number of interferences which
are judged by said interference judging means for each of said
interference targets stored in said condition storing means; and
display means for displaying a count result of said interference counting
means.
24. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined virtual subject to
conduct a motion in said workspace, said system comprising:
condition storing means for storing workspace data which include a shape of
at least one of said various objects of said workspace, an arrangement of
said one of said various objects, a shape of said workspace wherein said
one of said various objects is disposed, and virtual subject data which
include an arrangement and a shape of a virtual subject conducting work in
said workspace and data for generating motion of said virtual subject;
display means for displaying said workspace and said virtual subject;
designation means for designating one of said various objects which is to
be operated by said virtual subject in said workspace, or a plurality of
said various objects which are to be operated by the virtual subject and a
sequence of said plurality of said various objects; and
operability judging means for judging whether or not said virtual subject
can operate said one of said various objects or said plurality of said
various objects designated by said designation means.
25. The system of claim 24, wherein
said display means further displays a reachable area of said virtual
subject which is stored in said condition storing means, and wherein
said operability judging means comprises inclusion judging means for
judging whether or not said one of said various objects or said plurality
of said various objects designated by said designation means is within
said reachable area.
26. The system of claim 25, wherein
said condition storing means further stores an operable area for an object
which represents an operation target,
said display means further displays said operable area, and
said operability judging means further judges whether or not said operable
area of said one of said various objects or said plurality of said various
objects designated by said designation means is within said reachable area
via said inclusion judging means.
27. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined virtual subject to
conduct a motion in said workspace, said system comprising:
condition storing means for storing workspace data which include a shape of
at least one of said various objects of said workspace, an arrangement of
said one of said various objects, a shape of said workspace where said one
of said various objects is disposed, and virtual subject data which
include an arrangement and a shape of a virtual subject conducting work in
said workspace and data for generating motion of said virtual subject;
display means for displaying said workspace and said virtual subject;
work designation means for designating one work in said workspace, or
plural works and a sequence of said plural works;
motion generation means for generating a motion of said virtual subject in
accordance with said one work or said plural works designated via said
work designation means;
motion measuring means for measuring a frequency and a duration of each
motion generated by said motion generation means,
fatigue data storing means for storing fatigue data in accordance with said
frequency and said duration of each of said motions; and
fatigue calculation means for calculating a fatigue of said virtual subject
on the basis of each motion measured by said motion measuring means, and
on the basis of fatigue data stored in said fatigue data storing means.
28. The system of claim 27, wherein
said motion generation means comprises representing fatigue means for
changing a generated motion in accordance with a fatigue calculated by
said fatigue calculation means, and executes a motion generation
reflecting said fatigue via said representing fatigue means, and wherein
said display means further displays a motion which is generated reflecting
said fatigue.
29. A system for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said system comprising:
condition storing means for storing workspace data which include a shape of
at least one of said various objects of said workspace, an arrangement of
said one of said various objects, a shape of said workspace where said one
of said various objects is disposed, and virtual subject data which
include an arrangement and a shape of a virtual subject conducting work in
said workspace and data for generating motion of said virtual subject;
display means for displaying said workspace and said virtual subject;
designation means for designating one of said various objects which is to
be operated by said virtual subject in said workspace, or a plurality of
said various objects which are to be operated and an operation sequence of
said plurality of said various objects;
virtual subject visual field display means for displaying a visual field
from an individual viewpoint of one or plural virtual subjects existing in
said condition storing means; and
visual field designation means for designating a visual field of a virtual
subject which is to be displayed to said virtual subject visual field
display means.
30. A method for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said method comprising the steps of:
setting a sequence in which said operator model conducts a motion in said
workspace and objects at which said operator model is to gaze when said
operator model conducts said motion in accordance with said sequence; and
displaying a visual field area on a screen for each of said objects which
is set, said visual field area being obtained when said operator model
gazes at an object which was set.
31. The method of claim 30, further comprising the steps of:
arbitrarily setting physical features of said operator model;
generating a new operator model on the basis of said physical features
which are set; and
newly displaying a visual field area for each object which was set.
32. The method of claim 31, further comprising the steps of:
calculating a difference between a new visual field area obtained when said
physical features are newly set and a visual field area obtained before a
process of newly setting said physical features; and
displaying a calculated result.
33. The method of claim 31, further comprising the steps of:
judging whether or not a visual field area of an object which is disposed
in said workspace and at which said operator model is to gaze is
interfered by another object; and
displaying a judged result.
34. The method of claim 30, further comprising the steps of:
changing an arrangement of said various objects arranged in said workspace;
and
newly displaying a visual field area for each object which was set.
35. A method for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said method comprising the steps of:
defining a task sequence of said operator model in said workspace;
executing said task sequence which is defined;
designating an object at which said operator model is to gaze;
counting a number of interferences which are produced for a visual field
area of said object by another object when said operator model gazes at a
designated object in accordance with said task sequence; and
displaying a counted result.
36. A method for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said method comprising the steps of:
defining a motion of said operator model in said workspace;
executing said motion defined; and
newly executing a motion which is defined on the basis of a change of an
arrangement of said various objects, said operator model, or a motion of
said operator model.
37. The method of claim 36, further comprising the step of setting a
position of an object in said workspace toward which said operator model
is to gaze, in accordance with a defined motion of said operator model.
38. The method of claim 37, further comprising the step of displaying a
visual field area in accordance with a visual field angle which is
previously set based on a position of an object which is set.
39. A method for evaluating a virtually produced workspace wherein various
objects are arranged, by causing a predetermined operator model to conduct
a motion in said workspace, said method comprising the steps of:
defining a reachable area of each part of said operator model;
defining a motion of said operator model in said workspace with respect to
one of said various objects to be reached;
executing said motion of said operator model which is defined;
judging whether or not said one of said various objects to be reached is
within said reachable area defined while executing said motion of said
operator model; and
displaying a judging result. |
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Claims |
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Description |
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BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an evaluation system and method for quantitatively
evaluating a workspace such as a workplace, a monitor room, a control
room, or an office which is represented by a three-dimensional model.
2. Description of the Background Art
Conventionally, a monitor room for monitoring and controlling a power plant
or a factory, an office where a number of word processors and the like are
used, an operating room for a medical appliance such as a CT (Computed
Tomography) scanner, or a moving facility such as an elevator, or an
escalator installed in a public location is designed on the basis of
sketches which show the interior of a room where desks, chairs, etc. are
arranged and which are drawn by a designer from various viewpoints.
In a design of a monitor and control room, items to be checked include
whether or not an operator sitting at a supervisor control panel can see a
large screen on a wall without being obstructed by the control panel, and
whether or not the accommodation feeling is sufficient. In a design of an
operating room for a medical appliance, items to be checked include
whether or not an operator can operate the appliance while seeing a
patient, and whether or not a doctor can see a picked up image without
hindering the motion of the operator.
The designer must draw sketches while considering these items to be
checked. Furthermore, the designer must also consider that operators or
supervisors are different in height. Particularly in the case of a medical
appliance, not only a male operator but also a female operator operates
it, and therefore such an appliance must correspond to a height range from
150 cm to 180 cm or more. Using sketches in a design, however, it is
substantially impossible to check the items from arbitrary viewpoints.
In a design of a moving facility such as an elevator, conventional checks
using sketches cannot permit judgement on whether or not an adult, a
child, and a person using a wheelchair can select floor buttons without
trouble, and whether or not there is a gap difference which may obstruct a
movement of a wheelchair, in a passage from a gate to the elevator.
Furthermore, in the method using sketches, it is impossible to judge
whether or not a situation where only a child is on an escalator can be
recognized from a place lower than the escalator. In the prior art method
using sketches, furthermore, it is impossible to study the degree of
inclination which is produced when a wheelchair is on a descending
escalator, and the degree of a sensation of fear due to the inclination by
a person in the wheelchair.
In addition to the above-mentioned items, items to be checked in a design
further include important ones which cannot easily be judged in the method
using sketches. For example, whether or not a child or a person using a
wheelchair can see position indicator lamps of an elevator or the like,
and what kinds of discomfort a child or a short person in a crowded
elevator or train must endure (for example, the face is pressed against
the back or long hair of another person).
In order to solve these problems in a design check using sketches, a design
check using computer graphics has recently been conducted. In a design
check using computer graphics, a CAD (Computer Aided Design) or the like
is used in place of sketches, so that three-dimensional models of objects
such as a supervisor control panel, a desk, and a chair are input to be
arranged in a three-dimensional space. In computer graphics, a
three-dimensional space can be seen as a perspective view in an arbitrary
viewpoint. Using this feature, it is possible to check a design in an
arbitrary viewpoint. Furthermore, it is being studied to employ the
virtual reality (VR) technique wherein objects disposed in a
three-dimensional space produced by computer graphics are moved by using a
device such as a data glove which can indicate the shape of fingers and
the three-dimensional position of a hand.
In such a position change according to the virtual reality, a supervisor
control panel, a desk, and the like can be moved to an arbitrary position.
However, it is impossible to clearly indicate the point in which the
alternative arrangement obtained as a result of the position change is
superior to other arrangements. There is nothing to qualitatively evaluate
these arrangements by comparing perspective views on which these
arrangements are shown as pictures.
In another method, a mock-up of a scale of 1/10 is produced, and views are
picked up by a CCD (charge-coupled device) to verify actual views. Since
the viewpoint cannot be moved to an arbitrary position and displays on a
large screen must be imitated by drawings printed on papers, however, this
method has a drawback that visibility or sight distance cannot be
evaluated. With respect to a computer display screen, therefore,
simulation for display evaluation is separately produced by a computer,
and the evaluation is conducted on the basis of this simulation. In this
way, works on a computer display screen and an actual workspace are
separately evaluated.
On the other hand, in the field of the human factors or ergonomics, there
is an analysis method in which an operator in the spot is observed,
motions of the operator are recorded in the form of motion lines, and the
analysis is conducted on the basis of the recorded motion lines. According
to this method, motions peculiar to the operator can be analyzed. However,
the method cannot anticipate differences in motion due to a body part size
such as the height. When a short operator conducts a work, for example, a
supervisor control panel obstructs the view of a large screen, resulting
in that the operator must conduct motions of rising from and sitting on a
chair more often than when an average-height operator conducts the same
work. Moreover, for the workspace which is newly designed, there is no
actual work place where such observation can be conducted. Therefore, this
analysis method cannot be applied to such a workspace. In some cases, an
actual-size model of a workspace is produced and so-called actual-size
simulation is conducted by using the model. In such actual-size
simulation, experiments must be conducted on many subjects of various body
sizes, and therefore it is anticipated that it requires great expense.
Accordingly, such actual-size simulation may be used in a large-scale
design, but not in a small-scale design such as a design of a kitchen. In
a workspace of a medical appliance, doctors are so busy that it is
difficult to make the doctors join in actual-size simulation and obtain
comments or suggestions from them. Similarly, it is difficult to make
persons using a wheelchair and children take part in actual-size
simulation and obtain comments from them.
In the field of the human factors, known are a keystroke-level model for
anticipating a time required for a very skilled operator to operate a
keyboard (Card, S. K., Moran, T. P., and Newell, A. (1980), "The
keystroke-level model for user performance time with interactive systems,"
Communications of the ACM, 23, pp. 396-410), and a GOMS (Goals Operators
Methods and Selection-rules) model for anticipating actions of a user
conducted when editing a text (Card, S. K., Moran, T. P., and Newell, A.
(1983), "The Psychology of Human Computer Interaction," Hillsdale, N.J.:
Erlbaum).
These are models or evaluation methods for a very restricted portion of
works which are conducted facing a computer. When an alternative of an
arrangement of a workspace is to be comparatively evaluated, an evaluation
model or an evaluation technique for all the works conducted in the whole
workspace which include not only works conducted facing a computer but
also document works conducted at the side of the computer, and works
accompanied by movement of the body is required. Therefore, a conventional
model or evaluation method cannot evaluate an alternative of an
arrangement of a workspace.
In order to analyze the point of a computer screen at which the operator
gazes while conducting a work, furthermore, a measuring method is employed
in which physical viewpoint movement is recorded by a device such as an
eye-mark-recorder and the movement is analyzed. In another method, the
physiologic fatigue is measured after using a computer by a flicker test
or the like. However, fatigue data which are collected in these methods
remain simply as experimental data and are seldom reused as evaluation
data for an actual design.
When summarizing the above-discussed problems, there are four problems in
the prior art:
(1) In the prior art techniques using sketches, computer graphics, or the
virtual reality, it is impossible to quantitatively evaluate an
alternative of an arrangement of a workspace. Also, it is impossible to
evaluate inconvenience, discomfort, and the like which are produced in an
actual work.
(2) Models which are used in the field of the human factors are restricted
to works which are conducted facing a computer, and therefore cannot be
used to quantitatively evaluate an alternative of an arrangement of a
workspace while considering all the works conducted in the whole workspace
which include not only works conducted facing a computer but also document
works conducted at the side of the computer, and works accompanied by
movement of the body, and on the basis of differences in the body part
size and in the standpoint of the operator.
(3) The analyzing technique is conducted on an operator in an existing
workspace, and therefore cannot be applied to a workspace which will be
created (or which does not exist). When an actual-size model of a
workspace is produced and a motion analysis is conducted, experiments must
be conducted on many subjects of various body sizes, and therefore it
requires many labors and great expense. Furthermore, it is substantially
impossible to conduct actual-size simulation on busy doctors, etc.
(4) Collected fatigue data are experimental data in any case, and cannot be
used positively in an estimation of the fatigue, etc. due to the frequency
and duration period of motions, because devices are arranged in different
manner and the kinds of motions cannot be anticipated.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an evaluation
system and method which solve the above-discussed problems.
It is another object of the invention to provide an evaluation system and
method which quantitatively conduct evaluation on the basis of data which
are obtained from motions of an operator (model) working in a workspace
represented by a three-dimensional space.
It is a further object of the invention to provide an evaluation system and
a method which suggest a workspace conforming to motions of an operator
working in a workspace represented by a three-dimensional space.
It is a still further object of the invention to provide an evaluation
system and method which conduct evaluation on, for example, whether or not
a predetermined motion can be done in accordance with a change of physical
features of an operator working in a workspace represented by a
three-dimensional space.
It is a still further object of the invention to provide an evaluation
system and method which quantitatively evaluate an alternative of an
arrangement of a device in a workspace represented by a three-dimensional
space where a predetermined operator works.
It is a still further object of the invention to provide an evaluation
system and method which estimate and evaluate the fatigue of an operator
working in a workspace represented by a three-dimensional space which
fatigue is due to the difference in arrangement of a device.
According to one aspect of the present invention there is provided a system
of evaluating a workspace wherein various objects are arranged, by causing
a predetermined operator model to conduct a motion in the workspace, said
workspace being virtually produced, said system comprising: first setting
means for setting a sequence in which the operator model conducts a motion
in the workspace, and an object to which the operator model is to gaze
when the operator model conducts a motion in accordance with the sequence;
and display means for visibly displaying a visual field area on a screen
for each object which is set by said first setting means, said visual
field area being obtained when the operator model gazes at the object.
According to another aspect of the present invention there is provided a
system of evaluating a workspace wherein various objects are arranged, by
causing a predetermined operator model to conduct a motion in the
workspace, said workspace being virtually produced, said system
comprising: definition means for defining a task sequence of the operator
model in the workspace; execution means for executing the task sequence
defined by said definition means; designation means for designating an
object to which the operator model caused to conduct a motion by said
execution means is to gaze; counting means for, when the operator model
gazes at an object designated by said designation means in a task defined
by said definition means, counting the number of interferences which are
produced on the object by another object; and display means for displaying
a counting result obtained by said counting means.
According to further aspect of the present invention there is provided a
system of evaluating a workspace wherein various objects are arranged, by
causing a predetermined operator model to conduct a motion in the
workspace, said workspace being virtually produced, said system
comprising: definition means for defining a motion of the operator model
in the workspace; execution means for executing the motion defined by said
definition means; and reexecution means for, when an arrangement of the
various objects is changed, when the operator model is changed, or when a
motion of the operator model is changed, newly executing a motion which is
defined on the basis of the change.
According to still a further aspect of the present invention there is
provided a system of evaluating a workspace wherein various objects are
arranged, by causing a predetermined operator model to conduct a motion in
the workspace, said workspace being virtually produced, said system
comprising: first definition means for defining a reachable area of each
part of the operator model; second definition means for defining a motion
of the operator model in the workspace with respect to an object to be
reached which is one of the objects; execution means for executing the
motion of the operator model which is defined by said second definition
means; judging means for, when said execution means executes the motion of
the operator model, judging whether or not the object to be reached is
within the reachable area defined by said first definition means; and
display means for displaying a judging result of said judging means.
According to still a further aspect of the present invention there is
provided a system of evaluating a workspace wherein various objects are
arranged, by causing a predetermined operator model to conduct a motion in
the workspace, said workspace being virtually produced, said system
comprising: definition means for defining a motion of the operator model
in the workspace with respect to the various objects; execution means for
executing the motion defined by said definition means; classifying and
measuring means for classifying motions executed by said execution means
by kinds of motions, and for measuring the number of motions (frequency)
for each of the classified motions and/or a duration period of each
motion; and display means for displaying a result of said classifying and
measuring means.
According to still a further aspect of the present invention there is
provided a system of evaluating a workspace wherein various objects are
arranged, by causing a predetermined operator model to conduct a motion in
the workspace, said workspace being virtually produced, said system
comprising: input means for inputting conditions relating to the operator
model and the workspace; condition storing means for storing conditions
which are input through said input means; sequence input means for
inputting a task sequence in the workspace; sequence storing means for
storing the task sequence which is input through said sequence input
means; motion calculation means for calculating a motion of the operator
model on the basis of the task sequence stored in said sequence storing
means and conditions stored in said condition storing means; and display
means for displaying the workspace with respect to a motion of the
operator model which is calculated by said motion calculation means.
According to still a further aspect of the present invention there is
provided a system of evaluating a workspace wherein various objects are
arranged, by causing a predetermined operator model to conduct a motion in
the workspace, said workspace being virtually produced, said system
comprising: input means for inputting conditions relating to the operator
model and the workspace; condition storing means for storing conditions
which are input through said input means; sequence input means for
inputting a task sequence in the workspace; sequence storing means for
storing a sequence which is input through said sequence input means;
interference judging means for conducting an interference check on a
visual field of the operator model and an interference target on the basis
of a task sequence stored in said sequence storing means and conditions
stored in said condition storing means; interference counting means for
counting the number of interferences which are judged by said interference
judging means for each of the interference targets stored in said
condition storing means; and display means for displaying a count result
of said interference counting means.
According to still a further aspect of the present invention there is
provided a system of evaluating a workspace wherein various objects are
arranged, by causing a predetermined virtual subject to conduct a motion
in the workspace, said workspace being virtually produced, said system
comprising: condition storing means for storing: workspace data which
include a shape of at least one object constituting the workspace, an
arrangement of said object, and a shape of the workspace where said object
is disposed; and virtual subject data which include an arrangement and a
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