CN106482963A - The measuring method of dummy's pelvic movement and system in impact test - Google Patents
The measuring method of dummy's pelvic movement and system in impact test Download PDFInfo
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- CN106482963A CN106482963A CN201610861449.6A CN201610861449A CN106482963A CN 106482963 A CN106482963 A CN 106482963A CN 201610861449 A CN201610861449 A CN 201610861449A CN 106482963 A CN106482963 A CN 106482963A
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- 238000009863 impact test Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 35
- 210000004197 pelvis Anatomy 0.000 claims abstract description 52
- 238000006073 displacement reaction Methods 0.000 claims abstract description 48
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the measuring method of dummy's pelvic movement and system in a kind of impact test, wherein, measuring method is comprised the following steps：Obtain the positional information of Infrared Detectors；Motor message by thermal source of the Infrared Detectors capture setting at dummy's pelvis；According to the positional information of Infrared Detectors and the 3 D motion trace of motor message acquisition dummy's pelvis.Thus, the certainty of measurement of dummy's pelvic movement is improve, the judgement of the displacement being easy to dummy's pelvis on each axial direction.
Description
Technical field
The present invention relates to vehicle impact testing technical field, the survey of dummy's pelvic movement in more particularly to a kind of impact test
The measuring system of dummy's pelvic movement in amount method and a kind of impact test.
Background technology
As vehicle safety performance requires more and more higher, the part requirement for security performance is natural with regard to more and more higher, with
And come just have the conforming query of safety feature test.As the exemplar state of each safety test can not reach completely
Unanimously, therefore, rule can only be looked for from corresponding result of the test, rejected and suspected that data retain trust data and are applied to security
In developing.
In this regard, in correlation technique, have the data gathered by the acceleration transducer of dummy's pelvis to be judged, but
There is the inaccurate problem of scaling results in which；Also have and to be judged by way of increasing high-speed camera, but which equally exists
Indicate the mobile crawl of point inaccurate, it is also possible to there is a problem of that crawl is lost because of barrier indicates point.
Content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.For this purpose, the present invention
One purpose is to propose a kind of measuring method of dummy's pelvic movement in impact test, and the method is by Infrared Detectors to setting
Put the thermal source at dummy's pelvis to be detected, obtain the 3 D motion trace of dummy's pelvis, it is possible to increase dummy's pelvic movement
Certainty of measurement.
Second object of the present invention is to propose a kind of measuring system of dummy's pelvic movement in impact test.
For achieving the above object, first aspect present invention embodiment proposes dummy's pelvic movement in a kind of impact test
Measuring method, comprises the following steps：Obtain the positional information of Infrared Detectors；By the Infrared Detectors capture setting in institute
State the motor message of the thermal source at dummy's pelvis；Positional information and motor message acquisition institute according to the Infrared Detectors
State the 3 D motion trace of dummy's pelvis.
The measuring method of dummy's pelvic movement in the impact test of the embodiment of the present invention, can obtain the position of Infrared Detectors
Confidence ceases, it is possible to by the motor message of thermal source of the Infrared Detectors capture setting at dummy's pelvis, and then according to infrared
The positional information of detector and motor message obtain the 3 D motion trace of dummy's pelvis.Thus, dummy's pelvic movement is improve
Certainty of measurement, the judgement of the displacement being easy to dummy's pelvis on each axial direction.
In addition, in the impact test of the above embodiment of the present invention the measuring method of dummy's pelvic movement can also have as follows
Additional technical characteristic：
According to one embodiment of present invention, the Infrared Detectors is arranged on body of a motor car or impact test slide unit
On.
According to one embodiment of present invention, the measuring method also includes：Obtained according to the 3 D motion trace respectively
Maximum displacement of the dummy's pelvis on axially different, and described axially different on maximum displacement time of occurrence.
According to one embodiment of present invention, constant temperature thermal source of the thermal source for temperature more than 26 DEG C.
According to one embodiment of present invention, the infrared tracker is the free-moving Infrared Detectors of hemispherical.
For reaching above-mentioned purpose, second aspect present invention embodiment proposes dummy's pelvic movement in a kind of impact test
Measuring system, it is characterised in that include：Thermal source, the thermal source are arranged at dummy's pelvis；Infrared Detectors, for adopting
Collect the motor message of the thermal source；Controller, the controller are connected with the Infrared Detectors, for obtaining the infrared spy
The positional information of device is surveyed, and the positional information of the motor message according to the thermal source and the Infrared Detectors obtains the dummy
The 3 D motion trace of pelvis.
In the impact test of the embodiment of the present invention, the measuring system of dummy's pelvic movement, obtains infrared acquisition by controller
The positional information of device, and the motor message of the thermal source by Infrared Detectors capture setting at dummy's pelvis, and then by control
The 3 D motion trace of positional information and motor message acquisition dummy pelvis of the device processed according to Infrared Detectors.Thus, improve
The certainty of measurement of dummy's pelvic movement, the judgement of the displacement being easy to dummy's pelvis on each axial direction.
In addition, in the impact test of the above embodiment of the present invention dummy's pelvic movement measuring system, can also have such as
Lower additional technical characteristic：
According to one embodiment of present invention, the Infrared Detectors is arranged on the body of a motor car or car crass examination
Test on slide unit.
According to one embodiment of present invention, the controller is additionally operable to：Obtained according to the 3 D motion trace respectively
Maximum displacement of the dummy's pelvis on axially different, and described axially different on maximum displacement time of occurrence.
According to one embodiment of present invention, constant temperature thermal source of the thermal source for temperature more than 26 DEG C.
According to one embodiment of present invention, it is characterised in that the infrared tracker is that hemispherical is free-moving red
External detector.
The aspect that the present invention is added and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and easy to understand, wherein：
Fig. 1 is the flow chart of the measuring method of dummy's pelvic movement in impact test according to an embodiment of the invention；
Fig. 2 is the schematic view of the mounting position of thermal source in impact test according to one specific example of the present invention；
Fig. 3 is the schematic diagram of H point in impact test according to one specific example of the present invention；
Fig. 4, Fig. 5 are red in the measuring method of dummy's pelvic movement in impact test according to an embodiment of the invention
The flow chart that outer tracking is processed；
Fig. 6, Fig. 7 are the thermals source of the measuring method of dummy's pelvic movement in impact test according to an embodiment of the invention
Locus schematic diagram with Infrared Detectors；
Fig. 8 is the structural frames of the measuring system of dummy's pelvic movement in impact test according to an embodiment of the invention
Figure.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings the measuring method of dummy's pelvic movement and measurement in the impact test of the embodiment of the present invention are described
System.
Fig. 1 is the flow chart of the measuring method of dummy's pelvic movement in impact test according to an embodiment of the invention.
As shown in figure 1, the measuring method is comprised the following steps：
S101, obtains the positional information of Infrared Detectors.
In one embodiment of the invention, Infrared Detectors can be arranged on body of a motor car or impact test slide unit
On.
S102, by the motor message of thermal source of the Infrared Detectors capture setting at dummy's pelvis.
In one embodiment of the invention, in order to track thermal source interior in a big way, the Infrared Detectors can be
The free-moving Infrared Detectors of hemispherical.
In one embodiment of the invention, be limited to the material of dummy, the temperature of its own typically not over 26 DEG C,
Therefore, follow the trail of for the ease of Infrared Detectors, the thermal source can be constant temperature thermal source of the temperature more than 26 DEG C, such as 37 DEG C of constant temp. heating
Source.
Alternatively, for the ease of the tracking of Infrared Detectors, thermal source can be arranged on the rear side of dummy's pelvis, i.e., related
The installation site of dummy's pelvis acceleration transducer in technology.It is appreciated that when thermal source is arranged on the rear side of dummy's pelvis, such as
Shown in Fig. 2, hole can be set on the chair back of seat, thermal source is followed the trail of in order to Infrared Detectors.
S103, according to the positional information of Infrared Detectors and the 3 D motion trace of motor message acquisition dummy's pelvis.
Specifically, as shown in figure 3, in an initial condition, the dummy that a stable thermal source is placed at pelvis is placed in seat
On, Infrared Detectors, on the vehicle body of automobile or on impact test slide unit, is carried out static state according to dummy H point to dummy
Positioning, while the positional information (as space coordinates) of now Infrared Detectors can be obtained.
Further, during impact test, Infrared Detectors sends infrared acquisition ripple, follows the trail of constant temperature thermal source, and profit
With the infrared guidance principle shown in Fig. 4, Fig. 5, to obtain the motor message of thermal source at dummy's pelvis, and then according to the motor message
And the positional information of Infrared Detectors obtains the movement locus of dummy's pelvis.
For example, in an example of the present invention, Infrared Detectors is tried in collision on impact test slide unit
During testing, obtain the space coordinates (i.e. positional information) of Infrared Detectors in real time, and the space coordinates is set to space seat
Mark initial point.As shown in fig. 6, under original state, the position coordinates of the position coordinates (0,0,0) of Infrared Detectors and thermal source (x1,
Y1, z1)；As shown in fig. 7, in collision process, the position coordinates (0,0,0) of Infrared Detectors and the movement locus of thermal source, with
And the heat source position coordinate (xn, yn, zn) after terminating is collided, wherein, slide unit direction is the X-direction shown in Fig. 6, Fig. 7.
Specifically, in impact test, the position of Infrared Detectors is real-time change, and the position of thermal source is also to become in real time
Change.When Infrared Detectors is on impact test slide unit, the initial position of Infrared Detectors is set to (0,0,0), thermal source
Initial position be (x1, y1, z1), both relative positions be (x1, y1, z1)；T in collision process, infrared acquisition
The position of device is (at, 0,0), and the position of thermal source is (xt, yt, zt), and both relative positions are (xt-at, yt, zt).Due to
The displacement very little that Infrared Detectors is produced because of collision, negligible, therefore, t, thermal source produce because of collision three
Individual axially different on displacement be respectively xt-at-x1, yt-y1, zt-z1.Thus, it is possible to the displacement of not thermal source in the same time is obtained,
And then the 3 D motion trace (i.e. the 3 D motion trace of pelvis) of thermal source in impact test can be obtained.
In an example of the present invention, Infrared Detectors is arranged on body of a motor car, during impact test, in real time
The space coordinates (i.e. positional information) of Infrared Detectors is obtained, and the space coordinates is set to space coordinates initial point.As Fig. 6 institute
Show, under original state, the position coordinates (0,0,0) of Infrared Detectors and the position coordinates (x1, y1, z1) of thermal source；As Fig. 7 institute
Show, be in collision process, the position coordinates (0,0,0) of Infrared Detectors and the movement locus of thermal source, and after collision terminates
Heat source position coordinate (xn, yn, zn).
Specifically, in impact test, the position of Infrared Detectors is real-time change, and the position of thermal source is also to become in real time
Change.When Infrared Detectors is on impact test slide unit, the initial position of Infrared Detectors is set to (0,0,0), thermal source
Initial position be (x1, y1, z1), both relative positions be (x1, y1, z1)；T in collision process, infrared acquisition
The position of device is (at, bt, ct), and the position of thermal source is (xt, yt, zt), and both relative positions are (xt-at, yt-bt, zt-
ct).Due to the displacement very little that Infrared Detectors is produced because of collision, negligible, therefore, t, thermal source are produced because of collision
Raw axially different at three on displacement be respectively xt-at-x1, yt-bt-y1, zt ct-z1.Thus, it is possible to obtain difference
The displacement of moment thermal source, and then 3 D motion trace (the i.e. three-dimensional motion rail of pelvis of thermal source in impact test can be obtained
Mark).
Further, in one embodiment of the invention, dummy can be obtained respectively according to above-mentioned 3 D motion trace
Maximum displacement of the pelvis on axially different, and axially different on maximum displacement time of occurrence.
Specifically, when Infrared Detectors is arranged on impact test slide unit, t, the displacement in X axis of thermal source
For xt-at-x1, the displacement in Y-axis is yt-y1, is zt-z1 in Z axis displacement upwards, then can obtain in impact test
Maximum displacement of the thermal source on axially different, i.e. max (x2-a2-x1, x3-a3-x1 ..., xn-an-x1), max (y2-y1, y3-
Y1 ..., yn-y1), max (z2-z1, z3-z1 ..., zn-z1), while can obtain when axially different upper maximum displacement occurs
Time txmax, tymax, tzmax.
When Infrared Detectors is arranged on body of a motor car, t, the displacement in X axis of thermal source is xt-at-x1,
Displacement in Y-axis is yt-bt-y1, is zt-ct-z1 in Z axis displacement upwards, then can obtain thermal source in impact test and exist
Maximum displacement on axially different, i.e. max (x2-a2-x1, x3-a3-x1 ..., xn-an-x1), max (y2-b2-y1, y3-b3-
Y1 ..., yn-bn-y1), max (z2-c2-z1, z3-c3-z1 ..., zn-cn-z1), while axially different upper maximum can be obtained
Time txmax, tymax, tzmax when displacement occurs.
The measuring method of dummy's pelvic movement in the impact test of the embodiment of the present invention, can obtain the position of Infrared Detectors
Confidence ceases, it is possible to by the motor message of thermal source of the Infrared Detectors capture setting at dummy's pelvis, and then according to infrared
The positional information of detector and motor message obtain the 3 D motion trace of dummy's pelvis.Thus, dummy's pelvic movement is improve
Certainty of measurement, the judgement of the displacement being easy to dummy's pelvis on each axial direction.
Fig. 8 is the structural representation of the measuring system of dummy's pelvic movement in impact test according to an embodiment of the invention
Figure.As shown in figure 8, the measuring system includes：Thermal source 10, Infrared Detectors 20 and controller 30.
Wherein, thermal source 10 is arranged at dummy's pelvis；Infrared Detectors 20 is used for gathering the motor message of thermal source 10；Control
Device 30 is connected with Infrared Detectors 20, for obtaining the positional information of Infrared Detectors 20, and the motor message according to thermal source 10
The 3 D motion trace of dummy's pelvis is obtained with the positional information of Infrared Detectors 20.
In one embodiment of the invention, Infrared Detectors 20 can be arranged on body of a motor car or impact test slide unit
On.
In order to track thermal source 10 interior in a big way, the Infrared Detectors 20 can be that hemispherical is free-moving infrared
Detector.
In one embodiment of the invention, be limited to the material of dummy, the temperature of its own typically not over 26 DEG C,
Therefore, follow the trail of for the ease of Infrared Detectors 20, the thermal source 10 can be constant temperature thermal source of the temperature more than 26 DEG C, such as 37 DEG C of perseverance
Temperature-heat-source.
Alternatively, for the ease of the tracking of Infrared Detectors 20, thermal source 10 can be arranged on the rear side of dummy's pelvis, i.e.,
The installation site of dummy's pelvis acceleration transducer in correlation technique.It is appreciated that when thermal source 10 be arranged on dummy's pelvis after
During side, as shown in Fig. 2 hole can be arranged on the chair back of seat, thermal source 10 is followed the trail of in order to Infrared Detectors 20.
Specifically, as shown in figure 3, in an initial condition, the dummy for placing a stable thermal source 10 at pelvis is laid present
On chair, by Infrared Detectors 20 on the vehicle body of automobile or on impact test slide unit, controller 30 is according to dummy H point pair
Dummy carries out static immobilization, while the positional information (as space coordinates) of now Infrared Detectors can be obtained.
Further, during impact test, Infrared Detectors 20 sends infrared acquisition ripple, follows the trail of constant temperature thermal source 10,
And using the infrared guidance principle shown in Fig. 4, Fig. 5, to obtain the motor message of thermal source at dummy's pelvis, and then controller 30
The movement locus of dummy's pelvis is obtained according to the positional information of the motor message and Infrared Detectors 20.
For example, in an example of the present invention, Infrared Detectors 20 is being collided on impact test slide unit
In process of the test, controller 30 obtains the space coordinates (i.e. positional information) of Infrared Detectors 20 in real time, and by the space coordinates
It is set to space coordinates initial point.As shown in fig. 6, under original state, the position coordinates (0,0,0) of Infrared Detectors 20 and thermal source 10
Position coordinates (x1, y1, z1)；As shown in fig. 7, in collision process, the position coordinates (0,0,0) of Infrared Detectors 20 and heat
The movement locus in source 10, and 10 position coordinates of the thermal source (xn, yn, zn) after collision terminates, wherein, slide unit direction is Fig. 6, figure
X-direction shown in 7.
Specifically, in impact test, the position of Infrared Detectors 20 is real-time change, and the position of thermal source 10 is also real
Shi Bianhua's.When Infrared Detectors 20 is on the impact test slide unit, the initial position of Infrared Detectors 20 be set to (0,0,
0), the initial position of thermal source 10 is (x1, y1, z1), and both relative positions are (x1, y1, z1)；T in collision process,
The position of Infrared Detectors 20 is (at, 0,0), and the position of thermal source 10 is (xt, yt, zt), both relative positions for (xt-at,
Yt, zt).Due to the displacement very little that Infrared Detectors 20 is produced because of collision, negligible, therefore, t, thermal source 10 because
Collision and produce axially different at three on displacement be respectively xt-at-x1, yt-y1, zt-z1.Thus, it is possible to obtain not
The displacement of thermal source 10 in the same time, and then 3 D motion trace (i.e. three maintenance and operations of pelvis of thermal source 10 in impact test can be obtained
Dynamic rail mark).
In an example of the present invention, Infrared Detectors 20 is on body of a motor car, during impact test, real
When obtain the space coordinates (positional information) of Infrared Detectors 20, and the space coordinates is set to space coordinates initial point.Such as
Shown in Fig. 6, under original state, the position coordinates (0,0,0) of Infrared Detectors 20 and the position coordinates (x1, y1, z1) of thermal source 10；
As shown in fig. 7, in collision process, the position coordinates (0,0,0) of Infrared Detectors 20 and the movement locus of thermal source 10, and touch
Hit 10 position coordinates of the thermal source (xn, yn, zn) after terminating.
Specifically, in impact test, the position of Infrared Detectors 20 is real-time change, and the position of thermal source 10 is also real
Shi Bianhua's.When Infrared Detectors 20 is on the impact test slide unit, the initial position of Infrared Detectors 20 be set to (0,0,
0), the initial position of thermal source 10 is (x1, y1, z1), and both relative positions are (x1, y1, z1)；T in collision process,
The position of Infrared Detectors 20 is (at, bt, ct), and the position of thermal source 10 is (xt, yt, zt), and both relative positions are (xt-
At, yt-bt, zt-ct).Due to the displacement very little that Infrared Detectors 20 is produced because of collision, negligible, therefore, t,
Thermal source 10 produce because of collision axially different at three on displacement be respectively xt-at-x1, yt-bt-y1, zt ct-z1.
Thus, it is possible to the displacement of not thermal source 10 in the same time is obtained, and then the 3 D motion trace of thermal source 10 in impact test can be obtained
(i.e. the 3 D motion trace of pelvis).
Further, in one embodiment of the invention, controller 30 can also divide according to above-mentioned 3 D motion trace
Not Huo Qu maximum displacement of dummy's pelvis on axially different, and axially different on maximum displacement time of occurrence.
Specifically, when Infrared Detectors 20 is arranged on impact test slide unit, t, thermal source 10 in X axis
Displacement is xt-at-x1, and the displacement in Y-axis is yt-y1, is zt-z1 in Z axis displacement upwards, then can obtain collision examination
Test maximum displacement of the thermal source 10 on axially different, i.e. max (x2-a2-x1, x3-a3-x1 ..., xn-an-x1), max (y2-
Y1, y3-y1 ..., yn-y1), max (z2-z1, z3-z1 ..., zn-z1), while can obtain axially different upper dominant bit remove
Current time txmax, tymax, tzmax.
When Infrared Detectors 20 is arranged on body of a motor car, t, the displacement in X axis of thermal source 10 is xt-at-
X1, the displacement in Y-axis are yt-bt-y1, are zt-ct-z1 in Z axis displacement upwards, then can obtain heat in impact test
Maximum displacement of the source 10 on axially different, i.e. max (x2-a2-x1, x3-a3-x1 ..., xn-an-x1), max (y2-b2-y1,
Y3-b3-y1 ..., yn-bn-y1), max (z2-c2-z1, z3-c3-z1 ..., zn-cn-z1), while can obtain axially different
Time txmax, tymax, tzmax when upper maximum displacement occurs.
The measuring method of dummy's pelvic movement in the impact test of the embodiment of the present invention, can obtain the position of Infrared Detectors
Confidence ceases, it is possible to by the motor message of thermal source of the Infrared Detectors capture setting at dummy's pelvis, and then according to infrared
The positional information of detector and motor message obtain the 3 D motion trace of dummy's pelvis.Thus, dummy's pelvic movement is improve
Certainty of measurement, the judgement of the displacement being easy to dummy's pelvis on each axial direction.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", the instruction such as " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification is retouched
State, rather than indicate or the hint device of indication or element must with specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is the first and second feature directly contacts, or the first and second features passes through intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " etc. means that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in the present invention
At least one embodiment or example in.In this manual, the schematic representation to above-mentioned term is necessarily directed to phase
Same embodiment or example.And, the specific features of description, structure, material or feature can be in any one or more enforcements
Combined in example or example in an appropriate manner.Additionally, in the case of not conflicting, those skilled in the art can be by this
The feature of different embodiments or example and different embodiments or example described in specification is combined and combines.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. in a kind of impact test dummy's pelvic movement measuring method, it is characterised in that comprise the following steps：
Obtain the positional information of Infrared Detectors；
Motor message by thermal source of the Infrared Detectors capture setting at dummy's pelvis；
According to the positional information of the Infrared Detectors and the 3 D motion trace of motor message acquisition dummy's pelvis.
2. in impact test as claimed in claim 1 dummy's pelvic movement measuring method, it is characterised in that the infrared spy
Survey device be arranged on body of a motor car or impact test slide unit on.
3. in impact test as claimed in claim 1 dummy's pelvic movement measuring method, it is characterised in that also include：
Maximum displacement of the dummy's pelvis on axially different is obtained respectively according to the 3 D motion trace, and described not
The time of occurrence of the maximum displacement on coaxial.
4. in impact test as claimed in claim 1 dummy's pelvic movement measuring method, it is characterised in that the thermal source is
Constant temperature thermal source of the temperature more than 26 DEG C.
5. in impact test as claimed in claim 1 dummy's pelvic movement measuring method, it is characterised in that the infrared spy
Survey device is the free-moving Infrared Detectors of hemispherical.
6. in a kind of impact test dummy's pelvic movement measuring system, it is characterised in that include：
Thermal source, the thermal source are arranged at dummy's pelvis；
Infrared Detectors, for gathering the motor message of the thermal source；
Controller, the controller are connected with the Infrared Detectors, for obtaining the positional information of the Infrared Detectors, and
The three-dimensional motion rail of dummy's pelvis is obtained according to the motor message of the thermal source and the positional information of the Infrared Detectors
Mark.
7. in impact test as claimed in claim 6 dummy's pelvic movement measuring system, it is characterised in that the infrared spy
Survey device to be arranged on the body of a motor car or on vehicle impact testing slide unit.
8. in impact test as claimed in claim 6 dummy's pelvic movement measuring system, it is characterised in that the controller
It is additionally operable to：
Maximum displacement of the dummy's pelvis on axially different is obtained respectively according to the 3 D motion trace, and described not
The time of occurrence of the maximum displacement on coaxial.
9. in impact test as claimed in claim 6 dummy's pelvic movement measuring system, it is characterised in that the thermal source is
Constant temperature thermal source of the temperature more than 26 DEG C.
10. in impact test as claimed in claim 6 dummy's pelvic movement measuring system, it is characterised in that described infrared
Tracker is the free-moving Infrared Detectors of hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861449.6A CN106482963A (en) | 2016-09-28 | 2016-09-28 | The measuring method of dummy's pelvic movement and system in impact test |
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