CN101894173B - Method for converting coordinates of fixed point of safety belt - Google Patents
Method for converting coordinates of fixed point of safety belt Download PDFInfo
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- CN101894173B CN101894173B CN2010101150510A CN201010115051A CN101894173B CN 101894173 B CN101894173 B CN 101894173B CN 2010101150510 A CN2010101150510 A CN 2010101150510A CN 201010115051 A CN201010115051 A CN 201010115051A CN 101894173 B CN101894173 B CN 101894173B
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Abstract
The invention provides a method for converting coordinates of a fixed point of a safety belt, belongs to the technical field of automobiles, and solves the problems of low accuracy, long conversion time and the like in the conventional method for converting the coordinates of the fixed point of the safety belt. The method for converting the coordinates of the fixed point of the safety belt of the invention is used for converting the coordinates of the fixed point of the safety belt in a global coordinate system of an automobile into the relative coordinates of the fixed point of the safety belt in each local coordinate system and comprises the following steps of: (1) establishing the global coordinate system of the automobile; (2) establishing each local coordinate system of the automobile; (3) determining the coordinates of a relative zero point in the local coordinate system in the global coordinate system; (4) determining the coordinates of the fixed point of the safety belt in the global coordinate system; and (5) converting the relative coordinates of the fixed point of the safety belt in the local coordinate system into the coordinates of the fixed point of the safety belt in the global coordinate system. The method for converting the coordinates of the fixed point of the safety belt has the advantages of high accuracy and short conversion time so as to improve work efficiency.
Description
Technical field
The invention belongs to automobile technical field, relate to a kind of conversion method, particularly a kind of method for converting coordinates of fixed point of safety belt.
Background technology
Automobile often for ease to the design of car load, can be set up a car load coordinate system in the early stage design process.In design safety band point of fixity, slip-stick artist and experimenter be for more can the accurate installation site that must confirm belt anchorage point, and can introduce the local coordinate system that comprises this belt anchorage point.
When the installation site of design and computationally secure band point of fixity; Slip-stick artist and experimenter can often use the relative coordinate value of this belt anchorage point in the local coordinate system of place; In order to obtain this relative coordinate value; General all is to change through coordinate and place its relative zero of local coordinate system coordinate in the car load coordinate system of this belt anchorage point in the car load coordinate system, and traditional conversion regime adopts: 1, measurement data is changed one by one; 2, calculate through various.But traditional conversion regime exists some problems: the one, and measurement data is changed one by one, and it is not high that it calculates accuracy; The 2nd, computing time is longer, inefficiency.
Summary of the invention
The objective of the invention is to have the problems referred to above to existing technology, proposed a kind of accuracy rate height that converts, computing time is short and the method for converting coordinates of fixed point of safety belt of high efficiency.
The object of the invention can be realized through following technical proposal: a kind of method for converting coordinates of fixed point of safety belt; In order to its coordinate and conversion between its relative coordinate in each local coordinate system in the automobile global coordinate system of belt anchorage point, this method is made up of following step:
(1), sets up the automobile global coordinate system: get some actual zero point of coordinate system as a whole on the automobile, and make up X axle, Y axle and Z axle, set up the automobile global coordinate system according to this actual zero point;
(2), set up each local coordinate system of automobile: get on the automobile a certain part as reference; And specify a assigned address on this part as the relative zero of local coordinate system, draw three straight lines being parallel to above-mentioned X axle, Y axle and Z axle respectively x axle, y axle and z axle as each local coordinate system with this relative zero;
(3), confirm the coordinate of relative zero in global coordinate system in the local coordinate system: confirm that the coordinate of relative zero in global coordinate system in the local coordinate system is (A, B, C);
(4), confirm the coordinate of belt anchorage point in global coordinate system: confirm that the coordinate of belt anchorage point in global coordinate system is (X1, Y1, Z1);
(5), the conversion of belt anchorage point relative coordinate and its coordinate in global coordinate system in its local coordinate system:
This conversion method is accomplished through the Microsoft Excel that edits, and this Microsoft Excel editing process is following:
The newly-built new Microsoft Excel of elder generation; Form is divided into upper and lower two parts; Part makes up a relative zero coordinate input form in the above; This relative zero coordinate input form is divided into three parts in left, center, right, and left-hand component is each local coordinate system title, and center section is in order to import the coordinate (A, B, C) of relative zero in global coordinate system in corresponding each local coordinate system; Right-hand component is all edited on corresponding form position has function; Described function is the negative value of position of each coordinate of corresponding center section input, promptly at center section input coordinate (A, B, C), generate automatically on the corresponding form of the part position on the right sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-C);
Part makes up in order to relative coordinate and the conversion form its coordinate in global coordinate system between of belt anchorage point in its local coordinate system below again; This conversion form comprises these several parts of coordinate (being the relative coordinate of belt anchorage point in the local coordinate system of place) of sequence number, local coordinate system title, belt anchorage point title, car load coordinate (being the coordinate of belt anchorage point in global coordinate system) and relative each local coordinate system relative zero; Input coordinate in the car load coordinate (X1, Y1, Z1); In the local coordinate system coordinate of relative place, can converse relative coordinate (x1, y1, z1) automatically on the corresponding form position; In this relative coordinate and car load coordinate and the above-mentioned relative zero coordinate input form sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-have following funtcional relationship between C): relative coordinate (x1, y1, z1) is all edited on the form position at coordinate place separately has function; Described function is SUM (H1; H2); Wherein H1 is the form position at the car load coordinate place of this belt anchorage point; H2 is the form position of sentencing the accuser to the punishment facing the person he falsely accused the mark place in the corresponding relative zero coordinate input form of this belt anchorage point, promptly converts by following formula between relative coordinate (x1, y1, z1) and car load coordinate (X1, Y1, Z1) and the relative zero coordinate (A, B, C) in global coordinate system:
x1＝X1-A；
y1＝Y1-B；
z1＝Z1-C。
When using Microsoft Excel to convert; Set up each local coordinate system earlier; Confirm the coordinate of each relative zero in global coordinate system in each local coordinate system, and the relative zero coordinate of upper part is imported these coordinate figures of input in the form in Microsoft Excel.When using this Microsoft Excel that edits to convert, only need the coordinate figure of each belt anchorage point of input in global coordinate system, can directly generate and draw the relative coordinate of this belt anchorage point in the local coordinate system of place.Thereby can effectively reduce slip-stick artist and experimenter and also improve the data accuracy of mutual conversion, improve work efficiency greatly in its coordinate and its computing time and while that is belonging between the relative coordinate in the local coordinate system in global coordinate system of belt anchorage point.
In above-mentioned a kind of method for converting coordinates of fixed point of safety belt; Described automobile global coordinate system is for being principal direction with the people over against the automobile headstock; The X axle is the rectilinear direction at place, two tire centers before and after the automobile right side; The Y axle is the rectilinear direction at place, automobile two front tyre centers, and the Z axle was the automobile vertical height direction at automobile right side front wheel tire center.
In above-mentioned a kind of method for converting coordinates of fixed point of safety belt, each local coordinate system of described automobile be with each seat in the automobile as reference, specify an assigned address R point on each seat as the relative zero of each local coordinate system.
In above-mentioned a kind of method for converting coordinates of fixed point of safety belt, described local coordinate system title comprises front-seat left side, front-seat right side, player No.5's side and back right side.
In above-mentioned a kind of method for converting coordinates of fixed point of safety belt; The belt anchorage point title on wherein front-seat left side of described each local coordinate system and front-seat right side includes on guide ring, ribbon dististyle, the coiler, under the coiler, on the snap close, height adjuster and under the height adjuster, the belt anchorage point title of player No.5's side and back right side includes on guide ring, ribbon dististyle, the coiler, coiler time and snap close.
Compared with prior art; Safety band method for converting coordinates of fixed point adopts the ECXEL form edit directly to carry out the conversion between the coordinate of belt anchorage point in global coordinate system and its relative coordinate in belonging to local coordinate system; Slip-stick artist and experimenter can be converted convenient and simplely; When can shortening computing time and increasing work efficiency, also guaranteed the accuracy of its conversion.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
Set up the automobile global coordinate system earlier; Is principal direction with the people over against the automobile headstock; The X axle is the rectilinear direction at place, two tire centers before and after the automobile right side, and the Y axle is the rectilinear direction at place, automobile two front tyre centers, and the Z axle was the automobile vertical height direction at automobile right side front wheel tire center; Set up each local coordinate system of automobile again; Seat in the automobile in the present embodiment is two rows; Every row is equipped with two seats; Respectively with each seat as reference, specify an assigned address R point on each seat as the relative zero of corresponding local coordinate system, draw x axle, y axle and the z axle of three straight lines of the X axle, Y axle and the Z axle that are parallel to respectively in the global coordinate system with this relative zero as the corresponding topical coordinate system.
Editor is used for belt anchorage point it is belonging to the Microsoft Excel that converts between the relative coordinate in the local coordinate system at the coordinate of global coordinate system and its then, shown in form 1.
Form 1: editted and Microsoft Excel that each coordinate has all been imported and generated
In editor's Microsoft Excel; The newly-built Microsoft Excel of elder generation; This form is divided into upper and lower two parts; Above that part be relative zero coordinate input form; It comprises be arranged in left-hand component in order to the form part of importing each local coordinate system title, be arranged in the middle of in order to the relative zero of importing corresponding each local coordinate system the form part of the coordinate (A, B, C) of global coordinate system be positioned at the right in order to generate corresponding center section coordinate (A, B, C) sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-C) form part, each local coordinate system title comprises left side, front row, front-seat right side, player No.5's side and back right side.Part makes up in order to relative coordinate and the conversion form its coordinate in global coordinate system between of belt anchorage point in its local coordinate system below again; This conversion form comprises these several parts of sequence number, local coordinate system title, belt anchorage point title, car load coordinate (being the coordinate of belt anchorage point in global coordinate system) and relative each seat R point coordinate (being the relative coordinate of belt anchorage point in the local coordinate system of place); The local coordinate system title comprises front-seat left side, front-seat right side, player No.5's side and back right side; The belt anchorage point title on wherein front-seat left side of belt anchorage point title and front-seat right side includes on guide ring, ribbon dististyle, the coiler, under the coiler, on the snap close, height adjuster and under the height adjuster, the belt anchorage point title of player No.5's side and back right side includes on guide ring, ribbon dististyle, the coiler, coiler time and snap close.Input coordinate in the car load coordinate (X1, Y1, Z1); In relative each seat R point coordinate, can converse relative coordinate (x1, y1, z1) automatically on the corresponding form position; In this relative coordinate and car load coordinate and the relative zero coordinate input form sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-have following funtcional relationship between C): relative coordinate (x1, y1, z1) is all edited on the form position at coordinate place separately has function [promptly=SUM (H1; H2)]; Wherein H1 is the form position at the car load coordinate place of this belt anchorage point; H2 is the form position of sentencing the accuser to the punishment facing the person he falsely accused the mark place in the corresponding relative zero coordinate input form of this belt anchorage point, promptly converts by following formula between relative coordinate (x1, y1, z1) and car load coordinate (X1, Y1, Z1) and the relative zero R point coordinate (A, B, C) in global coordinate system:
x1＝X1-A；
y1＝Y1-B；
z1＝Z1-C。
Through this Microsoft Excel that edits can effectively reduce slip-stick artist and experimenter belt anchorage point its in global coordinate system coordinate and the computing time between its relative coordinate in the local coordinate system of place and also improved the data accuracy of mutual conversion simultaneously, improved work efficiency greatly.
Shown in form 1, each local coordinate system in the present embodiment also can be to be fixed on dummy on each seat as reference, specifies an assigned address H point on each dummy as the relative zero of corresponding local coordinate system.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (5)
1. method for converting coordinates of fixed point of safety belt, in order to its coordinate and conversion between its relative coordinate in each local coordinate system in the automobile global coordinate system of belt anchorage point, this method is made up of following step:
(1), sets up the automobile global coordinate system: get some actual zero point of coordinate system as a whole on the automobile, and make up X axle, Y axle and Z axle, set up the automobile global coordinate system according to this actual zero point;
(2), set up each local coordinate system of automobile: get on the automobile a certain part as reference; And specify a assigned address on this part as the relative zero of local coordinate system, draw three straight lines being parallel to above-mentioned X axle, Y axle and Z axle respectively x axle, y axle and z axle as each local coordinate system with this relative zero;
(3), confirm the coordinate of relative zero in global coordinate system in the local coordinate system: confirm that the coordinate of relative zero in global coordinate system in the local coordinate system is (A, B, C);
(4), confirm the coordinate of belt anchorage point in global coordinate system: confirm that the coordinate of belt anchorage point in global coordinate system is (X1, Y1, Z1);
(5), the conversion of belt anchorage point relative coordinate and its coordinate in global coordinate system in its local coordinate system:
This conversion method is accomplished through the Microsoft Excel that edits, and this Microsoft Excel editing process is following:
The newly-built new Microsoft Excel of elder generation; Form is divided into upper and lower two parts; Part makes up a relative zero coordinate input form in the above; This relative zero coordinate input form is divided into three parts in left, center, right, and left-hand component is each local coordinate system title, and center section is in order to import the coordinate (A, B, C) of relative zero in global coordinate system in corresponding each local coordinate system; Right-hand component is all edited on corresponding form position has function; Described function is the negative value of position of each coordinate of corresponding center section input, promptly at center section input coordinate (A, B, C), generate automatically on the corresponding form of the part position on the right sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-C);
Part makes up in order to relative coordinate and the conversion form its coordinate in global coordinate system between of belt anchorage point in its local coordinate system below again; This conversion form comprises these several parts of coordinate (being the relative coordinate of belt anchorage point in the local coordinate system of place) of sequence number, local coordinate system title, belt anchorage point title, car load coordinate (being the coordinate of belt anchorage point in global coordinate system) and relative each local coordinate system relative zero; Input coordinate in the car load coordinate (X1, Y1, Z1); In the local coordinate system coordinate of relative place, can converse relative coordinate (x1, y1, z1) automatically on the corresponding form position; In this relative coordinate and car load coordinate and the above-mentioned relative zero coordinate input form sentence the accuser to the punishment facing the person he falsely accused mark (A ,-B ,-have following funtcional relationship between C): relative coordinate (x1, y1, z1) is all edited on the form position at coordinate place separately has function; Described function is SUM (H1; H2); Wherein H1 is the form position at the car load coordinate place of this belt anchorage point; H2 is the form position of sentencing the accuser to the punishment facing the person he falsely accused the mark place in the corresponding relative zero coordinate input form of this belt anchorage point, promptly converts by following formula between relative coordinate (x1, y1, z1) and car load coordinate (X1, Y1, Z1) and the relative zero coordinate (A, B, C) in global coordinate system:
x1＝X1-A；
y1＝Y1-B；
z1＝Z1-C。
2. a kind of method for converting coordinates of fixed point of safety belt according to claim 1; It is characterized in that; Described automobile global coordinate system is for being principal direction with the people over against the automobile headstock; The X axle is the rectilinear direction at place, two tire centers before and after the automobile right side, and the Y axle is the rectilinear direction at place, automobile two front tyre centers, and the Z axle was the automobile vertical height direction at automobile right side front wheel tire center.
3. a kind of method for converting coordinates of fixed point of safety belt according to claim 2; It is characterized in that; Each local coordinate system of described automobile be with each seat in the automobile as reference, specify an assigned address R point on each seat as the relative zero of each local coordinate system.
4. according to claim 1 or 2 or 3 described a kind of method for converting coordinates of fixed point of safety belt, it is characterized in that described local coordinate system title comprises front-seat left side, front-seat right side, player No.5's side and back right side.
5. a kind of method for converting coordinates of fixed point of safety belt according to claim 4; It is characterized in that; The belt anchorage point title on wherein front-seat left side of described each local coordinate system and front-seat right side includes on guide ring, ribbon dististyle, the coiler, under the coiler, on the snap close, height adjuster and under the height adjuster, the belt anchorage point title of player No.5's side and back right side includes on guide ring, ribbon dististyle, the coiler, coiler time and snap close.
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| CN2010101150510A CN101894173B (en) | 2010-02-27 | 2010-02-27 | Method for converting coordinates of fixed point of safety belt |
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| CN2010101150510A CN101894173B (en) | 2010-02-27 | 2010-02-27 | Method for converting coordinates of fixed point of safety belt |
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| CN101894173B true CN101894173B (en) | 2012-02-01 |
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| CN102682140B (en) * | 2011-03-17 | 2014-07-16 | 上海汽车集团股份有限公司 | Method for designing distribution of effective fixing points of automotive seat belt, automotive seat and automobile |
| CN104842926B (en) * | 2014-11-28 | 2017-08-04 | 北汽福田汽车股份有限公司 | Fixing point method for arranging and check method under safety belt |
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Application publication date: 20101124 Assignee: Hunan Geely Auto Parts Co., Ltd. Assignor: Zhejiang Geely Automobile Research Institute Co., Ltd., Zhejiang Geely Holding Group Company Limited Contract record no.: 2013330000322 Denomination of invention: Method for converting coordinates of fixed point of safety belt Granted publication date: 20120201 License type: Exclusive License Record date: 20131014 |
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