CN1830390A - Human body centre-of gravity dynamic position measuring instrument and its measuring method - Google Patents
Human body centre-of gravity dynamic position measuring instrument and its measuring method Download PDFInfo
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- CN1830390A CN1830390A CN 200610043247 CN200610043247A CN1830390A CN 1830390 A CN1830390 A CN 1830390A CN 200610043247 CN200610043247 CN 200610043247 CN 200610043247 A CN200610043247 A CN 200610043247A CN 1830390 A CN1830390 A CN 1830390A
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Abstract
A measurer for measuring the dynamic position of the gravitational center of human body is composed of a force measuring platform with several supporting columns, pressure sensors, data acquisition card, and PC. Its measuring method is also disclosed.
Description
Technical field
The present invention relates to a kind of dynamometry instrument, specifically a kind of gravity center of human body's dynamic position measuring instrument and measuring method thereof.
Background technology
We know that coming the variation (equilibrium function) of testing human position of centre of gravity with mechanical platform at present is a kind of method in common, and force plate/platform has the small-sized platform of three fulcrums, four fulcrums, and the large-area platform of six fulcrums.The mentality of designing of these instruments mainly is the measurement for the position of human center (centre-of-pressure position) under human body stance (stand or the walk) condition, and do not consider detection under the human prone position condition, the function ratio of instrument is more single, carries also inconvenience very simultaneously.
Summary of the invention
The present invention is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, easy to operate, be easy to carry about with one, multi-functional gravity center of human body's dynamic position measuring instrument and measuring method thereof.
The objective of the invention is to adopt following technical proposals to realize: a kind of gravity center of human body's dynamic position measuring instrument, it includes force plate/platform, pressure transducer, data collecting card and PC computer, described force plate/platform is by cover plate, extension board and attached plate are formed, one end of cover plate and extension board is hinged, be provided with an extension board support column below the extension board other end, be respectively equipped with four cover plate support columns below the cover plate two ends, between cover plate support column and cover plate, be provided with pressure transducer, point contact between pressure transducer and the cover plate, both sides at cover plate and extension board are connected with attached plate respectively, and pressure transducer is connected with the PC computer with data collecting card by circuit.
The dynamic change measuring method of position of centre of gravity is as follows under the human body walking state:
A. hinged cover plate and extension board;
When b. walking along X direction, when human body is come on the extension board, consider that extension board stablizes area characteristics triangular in shape, require human body as far as possible along the centrage walking of extension board, simultaneously the distance of walking is carried out suitable control, terminal point will be apart from extension board support column one segment distance, its length is about 1/3 of extension board length, simultaneously when walking, walking speed should remain a constant speed as far as possible, exerts an influence with the detection to position of human center of the inertia force of eliminating human body;
C. it is as follows to calculate principle: suppose that cover plate length is AB, extension board length is BC, and its width all is DE, under the condition of known person body weight G, and in the x direction, when position of human center moves to x, the pressure F that A is ordered
ABe cover plate left end two pressure transducer numerical value sums, belong to given value; The pressure F that B is ordered
BFor cover plate right-hand member two pressure sensor numerical value sums, also belong to given value; The numerical value F of point C
cSize equals human body weight G and deducts F
AAnd F
B, also be given value; Lateral separation L when between each support column of test platform
a, L
bWhen known, according to the equilibrated relation of x yawning moment, C gets square to fulcrum, can get: ∑ M
C=0:F
A* (L
a+ L
b)+F
B* L
b-G * (L
a+ L
b-x)=0, x=L then
a+ L
b-F
A* (L
a+ L
b)/G-F
B* L
b/ G can determine position of centre of gravity x value; Equally, in the y direction, when the gravity center of human body moves to y, the pressure F that D is ordered
DNumerical value sum for cover plate left side two sensors belongs to given value, the pressure F that E is ordered
ENumerical value sum for cover plate right side two sensors also belongs to given value; Point C is positioned at the mid point of 2 of D, E, when human body weight is given value G, and the numerical value F that C is ordered
CSize equals G and deducts F
DAnd F
E, also be given value, the fore-and-aft distance L when between the cover plate support column of test platform
CWhen known,, the A point is got square: ∑ M according to the equilibrated relation of y yawning moment
A=0:F
C* 0.5 * L
c+ F
E* L
c-G * y=0, then y=(0.5 * F
C+ F
E) * L
c/ G, wherein F
C=G-F
D-F
ECan determine position of centre of gravity y value;
D. utilize pressure transducer, distributed load is tested and is calculated to many support columns of force plate/platform, and by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the real time dynamic measurement of position of human center.
The dynamic change measuring method of position of centre of gravity is as follows under the human prone position state:
A. hinged cover plate and extension board, and flexibly connect attached plate respectively in its both sides;
When b. prone position was measured, human body should be sat down from cover plate, slowly lie down then and after move, head can be supported on the extension board support column place of extension board, launches the attached plate that is connected with cover plate, can increase the Area of bearing of the lateral rotation of lower limb under the human prone position state; The attached plate that expansion is connected with extension board, the Area of bearing in the time of can increasing the lateral movement of human prone position state lower arms;
C. it is as follows to calculate principle: suppose that cover plate length is AB, extension board length is BC, and its width all is DE, under the condition of known person body weight G, and in the x direction, when position of human center moves to x, the pressure F that A is ordered
ABe cover plate left end two pressure transducer numerical value sums, belong to given value; The pressure F that B is ordered
BFor cover plate right-hand member two pressure sensor numerical value sums, also belong to given value; The numerical value F of point C
CSize equals human body weight G and deducts F
AAnd F
B, also be given value; Lateral separation L when between each support column of test platform
a, L
bWhen known, according to the equilibrated relation of x yawning moment, C gets square to fulcrum, can get: ∑ M
C=0:F
A* (L
a+ L
b)+F
B* L
b-G * (L
a+ L
b-x)=0, x=L then
a+ L
b-F
A* (L
a+ L
b)/G-F
B* L
b/ G can determine position of centre of gravity x value; Equally, in the y direction, when the gravity center of human body moves to y, the pressure F that D is ordered
DNumerical value sum for cover plate left side two sensors belongs to given value, the pressure F that E is ordered
ENumerical value sum for cover plate right side two sensors also belongs to given value; Point C is positioned at the mid point of 2 of D, E, when human body weight is given value G, and the numerical value F that C is ordered
CSize equals G and deducts F
DAnd F
E, also be given value, the fore-and-aft distance L when between the cover plate support column of test platform
cWhen known,, the A point is got square: ∑ M according to the equilibrated relation of y yawning moment
A=0:F
C* 0.5 * L
c+ F
E* L
c-G * y=0, then y=(0.5 * F
C+ F
E) * L
c/ G, wherein F
C=G-F
D-F
E, can determine position of centre of gravity y value;
D. utilize pressure transducer, distributed load is tested and is calculated to many support columns of force plate/platform, and by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the real time dynamic measurement of position of human center.
The present invention adopts cover plate and extension board hinged, and connect attached plate respectively in its both sides, be respectively equipped with the cover plate support column of band pressure transducer below the cover plate two ends, pick off be a contact with being connected of cover plate, causes statically indeterminate mechanical structure to avoid producing moment in the junction.Cover plate can use separately, and the position of centre of gravity when human body is stood under stance with testing human rocks (balanced capacity).Be provided with the extension board support column below the extension board other end, pressure transducer is connected with the PC computer with data collecting card by circuit.During use, human body walk in the above or prone position under can calculate position of centre of gravity according to the equalising torque principle.Utilize pressure transducer, distributed load is tested and is calculated to many support columns of force plate/platform, and by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the real time dynamic measurement of position of human center.Advantage of the present invention is:
(1) function is many, and the dynamic change of center of gravity in the time of both can having tested human body under the stance and stand or walk again can be to the Changing Pattern of position of human center under the prone position (because of the variation of extremity causes);
(2) be convenient for carrying, can disassembled and assembled freely between attached plate and cover plate and the extension board;
(3) with 5 fulcrums, the method for 4 pick offs had both enlarged the effective area of test, was solving the structure statically indeterminate problem on the mechanics on the theory and practice, had reduced the quantity of pick off simultaneously again, and the Mechatronic Systems structure is become simply, reliably.The present invention can be used as the selection of athletic training, motion, also can be for nationwide physical condition detect, and aspect services such as medical rehabilitation.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the stressed sketch map of force plate/platform X direction of the present invention;
Fig. 3 is the stressed sketch map of force plate/platform y direction of the present invention;
Fig. 4 is a schematic block circuit diagram of the present invention.
1. cover plates among the figure, 2. extension board, 3. attached plate, 4. cover plate support column, 5. extension board support column.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment: structure as shown in Figure 1, force plate/platform is made up of cover plate 1, extension board 2 and attached plate 3, one end of cover plate 1 and extension board 2 is hinged, be provided with an extension board support column 5 below extension board 2 other ends, be respectively equipped with four cover plate support columns 4 below cover plate 1 two ends, between cover plate support column 4 and cover plate 1, be provided with pressure transducer, point contact between pressure transducer and the cover plate 1, be connected with attached plate 3 respectively in the both sides of cover plate 1 and extension board 2, pressure transducer is connected with the PC computer with data collecting card by circuit.
When cover plate 1 was connected with extension board 2, the present invention can measure the dynamic change of position of centre of gravity under human body walking and the prone position state.When measuring human body walking, as shown in Figure 1, the direction of human body walking must be along X direction, when human body is come on the extension board, consider that extension board 2 stablizes area characteristics triangular in shape, require human body, simultaneously the distance of walking is carried out suitable control as far as possible along the centrage walking of extension board 2, as shown in Figure 2, terminal point will leave fulcrum C one segment distance L
1, its length is about 1/3 of extension board 2 length, in order to avoid platform topples.Simultaneously when walking, walking speed should remain a constant speed as far as possible, exerts an influence with the detection to position of human center of the inertia force of eliminating human body.When prone position was measured, cover plate 1 was connected with the attached plate 3 of its both sides, to increase the Area of bearing of the lateral rotation of lower limb under the human prone position state; Extension board 2 is connected with the attached plate of its both sides, can launch during use, the Area of bearing when increasing the lateral movement of human prone position state lower arms.When measuring prone position, human body should be sat down from cover plate 1, slowly lie down then and after move, head can be supported on extension board support column 5 places of extension board 2.
The calculating principle is as follows: as shown in Figures 2 and 3, suppose that cover plate length is AB, extension board length is BC, and its width all is DE, under the condition of known person body weight G, and in the x direction, when position of human center moves to x, the pressure F that A is ordered
ABe cover plate left end two pressure transducer numerical value sums, belong to given value; The pressure F that B is ordered
BFor cover plate right-hand member two pressure sensor numerical value sums, also belong to given value; The numerical value F of point C
CSize equals human body weight G and deducts F
AAnd F
B, also be given value; Lateral separation L when between each support column of test platform
a, L
bWhen known, according to the equilibrated relation of x yawning moment, C gets square to fulcrum, can get: ∑ M
C=0:F
A* (L
a+ L
b)+F
B* L
b-G * (L
a+ L
b-x)=0, x=L then
a+ L
b-F
A* (L
a+ L
b)/G-F
B* L
b/ G can determine position of centre of gravity x value; Equally, in the y direction, when the gravity center of human body moves to y, the pressure F that D is ordered
DNumerical value sum for cover plate left side two sensors belongs to given value, the pressure F that E is ordered
ENumerical value sum for cover plate right side two sensors also belongs to given value; Point C is positioned at the mid point of 2 of D, E, when human body weight is given value G, and the numerical value F that C is ordered
CSize equals G and deducts F
DAnd F
E, also be given value, the fore-and-aft distance L when between the cover plate support column of test platform
cWhen known,, the A point is got square: ∑ M according to the equilibrated relation of y yawning moment
A=0:F
C* 0.5 * L
c+ F
E* L
c-G * y=0, then y=(0.5 * F
C+ F
E) * L
c/ G, wherein F
C=G-F
D-F
E, can determine position of centre of gravity y value.
As shown in Figure 4, the operation principle of this instrument is to utilize pressure transducer, the distributed load of the many fulcrums of force plate/platform is tested and is calculated, by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the Real-time and Dynamic Detection of position of human center.
Claims (3)
1. gravity center of human body's dynamic position measuring instrument, it includes force plate/platform, pressure transducer, data collecting card and PC computer, it is characterized in that: described force plate/platform is by cover plate, extension board and attached plate are formed, one end of cover plate and extension board is hinged, be provided with an extension board support column below the extension board other end, be respectively equipped with four cover plate support columns below the cover plate two ends, between cover plate support column and cover plate, be provided with pressure transducer, point contact between pressure transducer and the cover plate, both sides at cover plate and extension board are connected with attached plate respectively, and pressure transducer is connected with the PC computer with data collecting card by circuit.
2. gravity center of human body's dynamic position measuring instrument according to claim 1, the dynamic change measuring method of position of centre of gravity is as follows under the human body walking state:
A. hinged cover plate and extension board;
When b. walking along X direction, when human body is come on the extension board, consider that extension board stablizes area characteristics triangular in shape, require human body as far as possible along the centrage walking of extension board, simultaneously the distance of walking is carried out suitable control, terminal point will be apart from extension board support column one segment distance, its length is about 1/3 of extension board length, simultaneously when walking, walking speed should remain a constant speed as far as possible, exerts an influence with the detection to position of human center of the inertia force of eliminating human body;
C. it is as follows to calculate principle: suppose that cover plate length is AB, extension board length is BC, and its width all is DE, under the condition of known person body weight G, and in the x direction, when position of human center moves to x, the pressure F that A is ordered
ABe cover plate left end two pressure transducer numerical value sums, belong to given value; The pressure F that B is ordered
BFor cover plate right-hand member two pressure sensor numerical value sums, also belong to given value; The numerical value F of point C
CSize equals human body weight G and deducts F
AAnd F
B, also be given value; Lateral separation L when between each support column of test platform
a, L
bWhen known, according to the equilibrated relation of x yawning moment, C gets square to fulcrum, can get: ∑ M
C=0:F
A* (L
a+ L
b)+F
B* L
b-G * (L
a+ L
b-x)=0, x=L then
a+ L
b-F
A* (L
a+ L
b)/G-F
B* L
b/ G can determine position of centre of gravity x value; Equally, in the y direction, when the gravity center of human body moves to y, the pressure F that D is ordered
DNumerical value sum for cover plate left side two sensors belongs to given value, the pressure F that E is ordered
ENumerical value sum for cover plate right side two sensors also belongs to given value; Point C is positioned at the mid point of 2 of D, E, when human body weight is given value G, and the numerical value F that C is ordered
CSize equals G and deducts F
DAnd F
E, also be given value, the fore-and-aft distance L when between the cover plate support column of test platform
cWhen known,, the A point is got square: ∑ M according to the equilibrated relation of y yawning moment
A=0:F
C* 0.5 * L
c+ F
E* L
c-G * y=0, then y=(0.5 * F
C+ F
E) * L
c/ G, wherein F
C=G-F
D-F
ECan determine position of centre of gravity y value;
D. utilize pressure transducer, distributed load is tested and is calculated to many support columns of force plate/platform, and by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the real time dynamic measurement of position of human center.
3. gravity center of human body's dynamic position measuring instrument according to claim 1, the dynamic change measuring method of position of centre of gravity is as follows under the human prone position state:
A. hinged cover plate and extension board, and flexibly connect attached plate respectively in its both sides;
When b. prone position was measured, human body should be sat down from cover plate, slowly lie down then and after move, head can be supported on the extension board support column place of extension board, launches the attached plate that is connected with cover plate, can increase the Area of bearing of the lateral rotation of lower limb under the human prone position state; The attached plate that expansion is connected with extension board, the Area of bearing in the time of can increasing the lateral movement of human prone position state lower arms;
C. it is as follows to calculate principle: suppose that cover plate length is AB, extension board length is BC, and its width all is DE, under the condition of known person body weight G, and in the x direction, when position of human center moves to x, the pressure F that A is ordered
ABe cover plate left end two pressure transducer numerical value sums, belong to given value; The pressure F that B is ordered
BFor cover plate right-hand member two pressure sensor numerical value sums, also belong to given value; The numerical value F of point C
CSize equals human body weight G and deducts F
AAnd F
B, also be given value; Lateral separation L when between each support column of test platform
a, L
bWhen known, according to the equilibrated relation of x yawning moment, C gets square to fulcrum, can get: ∑ M
C=0:F
A* (L
a+ L
b)+F
B* L
b-G * (L
a+ L
b-x)=0, x=L then
a+ L
b-F
A* (L
a+ L
b)/G-F
B* L
b/ G can determine position of centre of gravity x value; Equally, in the y direction, when the gravity center of human body moves to y, the pressure F that D is ordered
DNumerical value sum for cover plate left side two sensors belongs to given value, the pressure F that E is ordered
ENumerical value sum for cover plate right side two sensors also belongs to given value; Point C is positioned at the mid point of 2 of D, E, when human body weight is given value G, and the numerical value F that C is ordered
CSize equals G and deducts F
DAnd F
E, also be given value, the fore-and-aft distance L when between the cover plate support column of test platform
cWhen known,, the A point is got square: ∑ M according to the equilibrated relation of y yawning moment
A=0:F
C* 0.5 * L
c+ F
E* L
c-G * y=0, then y=(0.5 * F
C+ F
E) * L
c/ G, wherein F
C=G-F
D-F
ECan determine position of centre of gravity y value;
D. utilize pressure transducer, distributed load is tested and is calculated to many support columns of force plate/platform, and by data acquisition, A/D conversion, organized data is handled and the drawing print software, realizes the real time dynamic measurement of position of human center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100432477A CN100388906C (en) | 2006-03-22 | 2006-03-22 | Human body centre-of gravity dynamic position measuring instrument and its measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100432477A CN100388906C (en) | 2006-03-22 | 2006-03-22 | Human body centre-of gravity dynamic position measuring instrument and its measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1830390A true CN1830390A (en) | 2006-09-13 |
| CN100388906C CN100388906C (en) | 2008-05-21 |
Family
ID=36993000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100432477A Expired - Fee Related CN100388906C (en) | 2006-03-22 | 2006-03-22 | Human body centre-of gravity dynamic position measuring instrument and its measuring method |
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| CN (1) | CN100388906C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448394C (en) * | 2006-12-08 | 2009-01-07 | 徐铭陶 | Human body weight unidimensional distribution recognition system and recognition method thereof |
| WO2009021447A1 (en) * | 2007-08-10 | 2009-02-19 | Chunhui Wu | A method and an equipment of human body's center of gravity in x light image formation real-time demarcation. |
| WO2010022537A1 (en) * | 2008-08-26 | 2010-03-04 | 红电医学科技股份有限公司 | A fluid test chip base plate |
| WO2010031201A1 (en) * | 2008-09-16 | 2010-03-25 | 红电医学科技股份有限公司 | Two uses fluid test chip |
| US7964370B2 (en) | 2008-10-17 | 2011-06-21 | Actherm Inc | Analytical strip and detecting method using the same |
| CN102210584A (en) * | 2011-06-07 | 2011-10-12 | 哈尔滨工程大学 | Suspension type human body barycentre testing platform |
| US8133718B2 (en) | 2008-10-17 | 2012-03-13 | Actherm Inc | Analytical strip and detecting method using the same |
| US8367015B2 (en) | 2009-03-23 | 2013-02-05 | Actherm Inc | Analytical strip and the manufacturing method thereof |
| US8372660B2 (en) | 2008-10-09 | 2013-02-12 | Actherm Inc | Quantitative analyzing method |
| CN107374586A (en) * | 2017-07-05 | 2017-11-24 | 杭州电子科技大学 | A kind of total balance of the body method for dynamically assessing and its device |
| CN107640329A (en) * | 2017-08-30 | 2018-01-30 | 严杰豪 | A kind of high stable starting unmanned plane |
| CN108309236A (en) * | 2018-01-15 | 2018-07-24 | 新绎健康科技有限公司 | Total balance of the body appraisal procedure and system |
| CN110916668A (en) * | 2019-11-29 | 2020-03-27 | 天津大学 | Method for measuring gravity center of human body and gravity center of head |
| CN111035401A (en) * | 2019-12-30 | 2020-04-21 | 中国科学院合肥物质科学研究院 | Upper limb strength testing device and using method thereof |
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| JPH0428353A (en) * | 1990-03-02 | 1992-01-30 | Anima Kk | Judging device for oscillation of center of gravity |
| JP2760474B2 (en) * | 1994-03-11 | 1998-05-28 | アニマ株式会社 | Body sway meter |
| JP2776797B2 (en) * | 1996-06-19 | 1998-07-16 | 群馬日本電気株式会社 | Body sway analyzer |
| JP4028353B2 (en) * | 2002-10-25 | 2007-12-26 | 大日本印刷株式会社 | Method for forming laminate with gas barrier film |
| JP2004275280A (en) * | 2003-03-13 | 2004-10-07 | Tanita Corp | Center of gravity position measuring device |
| CN1682649A (en) * | 2004-04-16 | 2005-10-19 | 金季春 | Method and device for measuring human ring section weight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448394C (en) * | 2006-12-08 | 2009-01-07 | 徐铭陶 | Human body weight unidimensional distribution recognition system and recognition method thereof |
| WO2009021447A1 (en) * | 2007-08-10 | 2009-02-19 | Chunhui Wu | A method and an equipment of human body's center of gravity in x light image formation real-time demarcation. |
| WO2010022537A1 (en) * | 2008-08-26 | 2010-03-04 | 红电医学科技股份有限公司 | A fluid test chip base plate |
| WO2010031201A1 (en) * | 2008-09-16 | 2010-03-25 | 红电医学科技股份有限公司 | Two uses fluid test chip |
| US8372660B2 (en) | 2008-10-09 | 2013-02-12 | Actherm Inc | Quantitative analyzing method |
| US7964370B2 (en) | 2008-10-17 | 2011-06-21 | Actherm Inc | Analytical strip and detecting method using the same |
| US8133718B2 (en) | 2008-10-17 | 2012-03-13 | Actherm Inc | Analytical strip and detecting method using the same |
| US8367015B2 (en) | 2009-03-23 | 2013-02-05 | Actherm Inc | Analytical strip and the manufacturing method thereof |
| CN102210584B (en) * | 2011-06-07 | 2012-09-26 | 哈尔滨工程大学 | Suspension type human body barycentre testing platform |
| CN102210584A (en) * | 2011-06-07 | 2011-10-12 | 哈尔滨工程大学 | Suspension type human body barycentre testing platform |
| CN107374586A (en) * | 2017-07-05 | 2017-11-24 | 杭州电子科技大学 | A kind of total balance of the body method for dynamically assessing and its device |
| CN107640329A (en) * | 2017-08-30 | 2018-01-30 | 严杰豪 | A kind of high stable starting unmanned plane |
| CN108309236A (en) * | 2018-01-15 | 2018-07-24 | 新绎健康科技有限公司 | Total balance of the body appraisal procedure and system |
| CN110916668A (en) * | 2019-11-29 | 2020-03-27 | 天津大学 | Method for measuring gravity center of human body and gravity center of head |
| CN110916668B (en) * | 2019-11-29 | 2022-06-17 | 天津大学 | Method for measuring gravity center of human body and gravity center of head |
| CN111035401A (en) * | 2019-12-30 | 2020-04-21 | 中国科学院合肥物质科学研究院 | Upper limb strength testing device and using method thereof |
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| CN100388906C (en) | 2008-05-21 |
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