CN105352439B - Vehicle body parameter measuring system and method based on full raster structure - Google Patents
Vehicle body parameter measuring system and method based on full raster structure Download PDFInfo
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- CN105352439B CN105352439B CN201510702746.1A CN201510702746A CN105352439B CN 105352439 B CN105352439 B CN 105352439B CN 201510702746 A CN201510702746 A CN 201510702746A CN 105352439 B CN105352439 B CN 105352439B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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Abstract
A kind of Vehicle body parameter measuring system and method based on full raster structure, the system include：Full raster structure, information gathering memory module and the calculating processing module being sequentially connected, wherein：Full raster structure is connected with information gathering memory module and transmits optical signal information, and information gathering memory module is connected with calculating processing module and the optical signal information of transmission belt timestamp；Described full raster structure includes：The grating portal frame and longitudinal grating group that detection triggering grating, horizontal raster group are formed with vertical grating group.By the present invention in that the full raster structure with low cost, in the case where not influenceing normal vehicle operation, realize the high-precision rapid survey to formal parameters such as the length of vehicle to be checked, width, height, wheel shaft number, wheel distance between axles, help to find refitted vehicles vehicle in time, reduce major traffic accidents caused by refitted vehicles vehicle.
Description
Technical field
The present invention relates to a kind of technology in test and measuring field, specifically a kind of contour of the vehicle ginseng based on full raster structure
Number measuring system and method.
Background technology
With China's rapid development of economy, the utilization rate of various high capacity waggons raises year by year in logistics and transportation industry.By
Increasingly violent in competing, many vehicle transport company managers increase enterprise's turnover, Ta Mentong by compressing cost of transportation
Can often some refitted vehicles be carried out to high capacity waggon, to increase the carrying capacity of vehicle, reduce cost of transportation.But illegally change
Major traffic accidents occur again and again caused by loading truck, result in substantial amounts of property and personal casualty loss.To avoid such accident
Occur, it would be desirable to the parameters of contour of the vehicle are detected, judge vehicle whether by refitted vehicles accordingly.And current state
The interior mode for Vehicle body parameter measurement is mainly artificial tape measure, i.e., is led in the case of stationary vehicle by survey crew
Cross manual type to measure the formal parameters such as the length of vehicle, width, height and wheel base with tape measure, this method is very
Needed in the case of more by the visual of survey crew, measurement efficiency is relatively low, and error is larger, while information preservation is more difficult.
Found by the retrieval to prior art, Chinese patent literature CN103453836A, open (bulletin) day
2013.12.18, disclose one kind and be based on machine vision and laser light curtain vehicle outer profile size measuring system and method, including：
Vehicle outline length dimension measurement module, vehicle outline width dimensions measurement module and the measurement of vehicle outline height dimension
Module, while the side of vehicle to be detected traveling measured zone, are provided with relative to the mutually level position of horizontal laser light curtain
One group of one-dimensional laser detector array, to detect the laser light not exported by the horizontal laser light curtain of occlusion to be detected
Beam.But this method needs to use more cameras to be detected, and system is complex, it is larger to build the place of needs, does not require nothing more than
The full vehicle body of vehicle is at detection zone, and has certain limitation to the length of vehicle to be checked, and this method can only in addition
The length, width and height of vehicle are enough detected, wheel distance between axles can not be detected, therefore has some limitations.
The content of the invention
The present invention is directed to deficiencies of the prior art, it is proposed that a kind of contour of the vehicle ginseng based on full raster structure
Number measuring system and method, utilize the full raster of three groups of optical grating constitutions, in the case where not influenceing normal vehicle operation, realization pair
Vehicle length, width, height, wheel shaft number and vehicle to be checked always take turns the formal parameters such as distance between axles and carry out high-precision rapid survey.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of Vehicle body parameter measuring system based on full raster structure, including：What is be sequentially connected is complete
Optical grating construction, information gathering memory module and calculating processing module, wherein：Full raster structure is connected with information gathering memory module
And optical signal information is transmitted, information gathering memory module is connected with calculating processing module and the optical signal of transmission belt timestamp letter
Breath.
Described full raster structure includes：The grating dragon that detection triggering grating, vertical grating group are formed with horizontal raster group
Door frame and longitudinal grating group, wherein：Spot separation in grating portal frame is 15mm~20mm, altogether 250~300 luminous points,
The setting height(from bottom) and width of grating portal frame are in 5m to 6m.
The present invention relates to the measuring method of said system, by vehicle operation, stage collection information, judging
Vehicle and the formal parameter information that vehicle to be checked is calculated.
The formal parameter information of described vehicle to be checked includes：Length, width, height, wheel shaft number and the total wheel shaft of vehicle
Spacing.
Described interim collection information includes：
Stage one, optical signal information, first group of wheel when collection vehicle leading edge enters grating portal frame detection zone hide
The optical signal information and N of the luminous point being up to and previous luminous point are kept off in longitudinal grating groupaThe optical signal information of individual luminous point, and
Start to gather vertical, the horizontal optical signal information of optical grating construction when vehicle leading edge enters grating portal frame detection zone, wherein：
NaIndividual luminous point is located on the left of grating portal frame, and distance grating portal frame horizontal range is Xa；
Stage two, first group of wheel of collection block the N that will be run intosThe optical signal information of individual luminous point, and gather last
One group of wheel blocks the optical signal information of two neighboring luminous point, wherein：Distance grating portal frame is longitudinal direction on the right side of grating portal frame
At a quarter of grating group length, closest to this at luminous point be NsIndividual luminous point；
Optical signal information, last group of wheel when stage three, collection vehicle trailing edge leave grating portal frame detection zone
Block the optical signal information and N of the luminous point being up in longitudinal grating group and previous luminous pointbThe optical signal information of individual luminous point,
And stop vertical, the horizontal optical signal information of collection optical grating construction when vehicle trailing edge leaves grating portal frame detection zone, its
In：NbIndividual luminous point is located on the right side of grating portal frame, and distance grating portal frame horizontal range is Xb；
Described judgement vehicle refers to judge that vehicle always takes turns distance between axles, according to first group of wheel and last group of wheel vertical
Optical signal information in grating group, if the first wheel blocks N in longitudinal grating groupsIndividual luminous point and last group of wheel are not yet
Into the detection zone of longitudinal grating group, then it is judged as major axis vehicle, is otherwise ordinary vehicle type；
Described calculating includes：1) vehicle width and height are calculated：After measurement terminates, horizontal raster group reflects car to be checked
At grating portal frame in transverse direction luminous point circumstance of occlusion, it is most according to traversal search per frame data to obtain blocking spot number
Data, i.e. vehicle at maximum one, are designated as the width value W of vehicle in the direction of the width；Vertical grating group can be anti-
Mirror vehicle to be checked it is vertical at the grating portal frame on luminous point circumstance of occlusion, obtain blocking light per frame data according to traversal search
A most data of points, i.e. vehicle at maximum one, are designated as the height value H of vehicle in the height direction1, due to hanging down
A certain distance be present to the mounting distance ground of grating group, therefore the exact height of vehicle will also add setting height(from bottom) offset
H2, it is designated as the actual height value H=H of vehicle1+H2；2) Vehicle length, wheel shaft number and vehicle are calculated and always takes turns distance between axles：According to upper
The information of three phases collection is stated, calculates vehicle leading edge respectively to the distance L of first group of wheel0, last group of wheel to vehicle
The distance L of trailing edgefAnd the wheelbase L of adjacent wheels is calculated according to the vehicle of judgementi, finally give the approximate length of vehicleAnd vehicle wheel number of axle M=m+1, wherein：M is the adjacent wheels of the detecting system detection of programmed algorithm record
Distance between axles number.
Its counting direction of described luminous point using vehicle enter full raster structure as starting point, using vehicle leave full raster structure as
Terminal.
Technique effect
Compared with prior art, by the present invention in that with inexpensive full raster structure, normal vehicle operation is not being influenceed
In the case of, realize that the length to vehicle to be checked, width, height, wheel shaft number, vehicle always take turns the height of the formal parameters such as distance between axles
Precision quickly measures, and helps to find refitted vehicles vehicle in time, reduces major traffic accidents caused by refitted vehicles vehicle.
Brief description of the drawings
Fig. 1 is present system structural representation；
Fig. 2 is measuring method general flow chart of the present invention；
Fig. 3 is the algorithm flow chart of Vehicle length size to be checked, wheel shaft number and the total wheel shaft distance measurement of vehicle；
The schematic diagram calculation of Fig. 4 distances between vehicle leading edge and first group of wheel；
Fig. 5 is the schematic diagram calculation that two axles ordinary vehicle type vehicle always takes turns distance between axles；
Fig. 6 is the schematic diagram calculation that two axles major axis vehicle vehicle always takes turns distance between axles；
The schematic diagram calculation of Fig. 7 distances between last group of wheel of vehicle and vehicle trailing edge；
In figure：Full raster structure 1, detection triggering grating 111, horizontal raster group 112, vertical grating group 113, grating gantry
Frame 13, longitudinal grating group 14, information gathering memory module 2, calculating processing module 3, NaIndividual luminous point 4, NbIndividual luminous point 5, first
N-th of luminous point 6, the N that group wheel will pass throughsN-th of luminous point 8 that individual luminous point 7, last group of wheel will pass through, the 1st
N-th of luminous point 11 that n-th of luminous point 10, last group of wheel that 9, first groups of wheels of luminous point will pass through will pass through.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
The parameters of system are in the present embodiment：The horizontal raster group 112 of grating portal frame 13 and vertical grating group 113
Spot separation is set to 20mm, is respectively provided with 250 luminous points；Spot separation is set to 200mm in longitudinal grating group 14, sets 32 light altogether
Point, installation length in 6m to 7m, wherein：Na=16, Xa=100mm, Nb=17, Xb=100mm, Ns=21；Information gathering stores
Module 2 per 5ms detect a full raster structure 1 obtain three groups with timestamp optical signal informations and stored, transmit to
Calculate processing module 3；.
As shown in figure 1, the present embodiment includes：Full raster structure 1, information gathering memory module 2 and the calculating being sequentially connected
Processing module 3, wherein：Full raster structure 1 is connected with information gathering memory module 2 and transmits optical signal information, and information gathering is deposited
Storage module 2 is connected with calculating processing module 3 and the optical signal information of transmission belt timestamp；
Described full raster structure 1 includes：Detection triggering grating 111, horizontal raster group 112 and the vertical structure of grating group 113
Into grating portal frame 13 and longitudinal grating group 14.
Described detection triggering grating 111, horizontal raster group 112, vertical grating group 113 and longitudinal grating group 14 is respectively provided with
There is transmitting grating and receive grating.
Described grating portal frame 13 is preferably arranged on longitudinal middle part of grating group 14, i.e., in longitudinal grating group 14
NaIndividual 4 and NbThe distance of individual luminous point 5 to same position on grating portal frame 13 is identical.
As shown in Figures 2 and 3, the present embodiment is related to the measuring method of said system, by vehicle operation, rank
Section property collection information, judges vehicle and the formal parameter information of vehicle to be checked is calculated.
The formal parameter information of described vehicle to be checked includes：Length, width, height, wheel shaft number and the total wheel shaft of vehicle
Spacing.
Described interim collection information includes：Stage one, collection vehicle leading edge enter the detection zone of grating portal frame 13
When optical signal information and first group of wheel block the optical signal information and N of the luminous point being up to and previous luminous pointaIt is individual
The optical signal information of luminous point 4, and start when vehicle leading edge enters grating 13 detection zone of portal frame to gather optical grating construction it is vertical,
Horizontal optical signal information, wherein：NaIndividual luminous point 4 is located at the left side of grating portal frame 13, distance grating portal frame 13 it is horizontal away from
From for Xa；Stage two, first group of wheel of collection block the N that will be run intosThe optical signal information of individual luminous point, and gather last
Group wheel blocks the optical signal information of two neighboring luminous point, wherein：The right side distance grating portal frame 13 of grating portal frame 13 is vertical
To at a quarter of the length of grating group 14, closest to this at luminous point be NsIndividual luminous point；Stage three, collection vehicle trailing edge from
Optical signal information, last group of wheel during grid 13 detection zone of portal frame of opening the light block the luminous point being up to and previous luminous point
Optical signal information and NbThe optical signal information of individual luminous point 5, and when vehicle trailing edge leaves grating 13 detection zone of portal frame
Stop vertical, the horizontal optical signal information of collection optical grating construction, wherein：NbIndividual luminous point 5 is located at the right side of grating portal frame 13, away from
It is X from the horizontal range of grating portal frame 13b；
Described calculating includes：1) vehicle width and height are calculated：After measurement terminates, horizontal raster group 112, which reflects, to be treated
The circumstance of occlusion of vehicle luminous point in the transverse direction of grating portal frame 13 is examined, is obtained blocking spot number at most once according to searching algorithm
Data, i.e. vehicle at maximum one, are designated as the width value W of vehicle in the direction of the width；Vertical grating group can reflect
The circumstance of occlusion of vehicle to be checked luminous point on grating portal frame 13 is vertical, obtain blocking spot number per frame data according to traversal search
A most data, i.e. vehicle at maximum one, are designated as the height value H of vehicle in the height direction1, due to vertical light
There is a certain distance in the mounting distance ground of grid group, therefore the exact height of vehicle will also add setting height(from bottom) offset H2,
It is designated as the actual height value H=H of vehicle1+H2；2) Vehicle length, wheel shaft number and vehicle are calculated and always takes turns distance between axles：According to above-mentioned
The information of three phases collection, vehicle leading edge is calculated respectively to the distance L of first group of wheel0, adjacent wheels wheelbase LiAnd most
Distance L of the later group wheel to vehicle trailing edgef, finally give Vehicle lengthAnd vehicle wheel number of axle M=m+
1, if there is major axis situation, L in detectioniCalculation formula according to major axis situation LfCalculate, wherein：M is the detection of programmed algorithm record
The adjacent wheels distance between axles number of system detectio.
As shown in figure 4, described vehicle leading edge is approximately to the distance of first group of wheel：
L0=((tn-ta)×vn+200×(Na-n)+Xa)/1000, unit m, wherein：Na＞ n, taRepresent vehicle leading edge
Into the time point of grating portal frame 13, tnRepresent that first group of wheel blocks will run into n-th in longitudinal grating group 14
The time point of luminous point 6,Represent that first group of wheel blocks (n-1)th luminous point to blocking in longitudinal grating group 14
The average speed of automobile, t in n luminous point 6 this segment distancen‐1Represent that first group of wheel blocks the time point of (n-1)th luminous point.
As shown in Figure 5 and Figure 6, vehicle always takes turns distance between axles and wheel shaft number calculates：
Two axles ordinary vehicle type：Unit is m, wherein：n
＜ Ns,Represent that first group of wheel blocks the N that will be run intosThe time point of individual luminous point 7, tnRepresent that last group of wheel blocks
The time point for n-th of the luminous point 8 that will be run into,Represent that last group of wheel passes through (n-1)th luminous point and n-th
The average speed of automobile, t in this segment distance of luminous point 8n‐1Represent that last group of wheel blocks the time point of (n-1)th luminous point；
As shown in fig. 7, in the case of measurement long wheelbase, because wheel base is long, when first group of wheel just blocks NsIt is individual
During luminous point 7, last group of wheel is also introduced into detection zone, it is therefore desirable to uses different detection modes：
Two axles major axis vehicle：Unit is m, wherein：t1
Represent that last group of wheel blocks the time point of the 1st luminous point 9, tnRepresent that first group of wheel blocks n-th of the light that will be run into
The time point of point 10,Represent last group of wheel by automobile in the 1st luminous point 9 and the 2nd luminous point this segment distance
Average speed, t2Represent that last group of wheel blocks the time point of the 2nd luminous point.
More wheel shaft major axis vehicles：
As shown in fig. 7, the distance of described last group of wheel to vehicle trailing edge is approximately：
Lf=(200 × (n-Nb)+Xb-(tn-te)×vn)/1000, unit m, wherein：N ＞ Nb, teRepresent vehicle trailing edge
Leave the time point of grating portal frame 13, tnRepresent that last group of wheel blocks the time point for n-th of the luminous point 11 that will be run into,Represent that last group of wheel blocks (n-1)th luminous point to blocking the flat of automobile in n-th of luminous point 11 this segment distance
Equal speed, tn‐1Represent that last group of wheel blocks the time point of (n-1)th luminous point.
Wheel shaft number M：M=m+1, wherein：M is the adjacent wheels distance between axles of the detecting system detection of programmed algorithm record
Number.
General car measurement result：
| Project | Actual value | Measured value 1 | Measured value 2 | Measured value 3 | Measured value 4 | Measured value 5 |
| Wheel shaft number | 2 | 2 | 2 | 2 | 2 | 2 |
| Take turns distance between axles | 2.75m | 2.749m | 2.765m | 2.741m | 2.751m | 2.750m |
| Full car length | 4.843m | 4.825m | 4.833m | 4.854m | 4.810m | 4.887m |
| Width | 1.84m | 1.84m | 1.84m | 1.86m | 1.86m | 1.86m |
| Highly | 1.48m | 1.45m | 1.45m | 1.45m | 1.45m | 1.45m |
Error size is within 2%.
More wheel shaft long wheelbase truck measurement results：
Error size is within 2%.
Claims (6)
1. a kind of measuring method of the Vehicle body parameter based on full raster structure, it is characterised in that by being run in vehicle
Cheng Zhong, stage collection information, judges vehicle and the formal parameter information of vehicle to be checked is calculated；
The formal parameter information of described vehicle to be checked includes：Length, width, height, wheel shaft number and vehicle always take turns distance between axles；
Described full raster structure includes：The grating portal frame that detection triggering grating, horizontal raster group are formed with vertical grating group
With longitudinal grating group；
Described interim collection information includes：
Stage one, optical signal information, first group of wheel when collection vehicle leading edge enters grating portal frame detection zone are blocked vertical
The luminous point and the optical signal information and N of previous luminous point being up on to grating groupaThe optical signal information of individual luminous point, and in car
Leading edge starts to gather optical grating construction vertical, horizontal optical signal information when entering grating portal frame detection zone, wherein：Na
Individual luminous point is located on the left of grating portal frame, and distance grating portal frame horizontal range is Xa；
Stage two, first group of wheel of collection block the N that will be run intosThe optical signal information of individual luminous point, and gather last group of car
Wheel blocks the optical signal information of two neighboring luminous point, wherein：Distance grating portal frame is longitudinal grating group on the right side of grating portal frame
At a quarter of length, closest to this at luminous point be NsIndividual luminous point；
Stage three, optical signal information, last group of wheel when collection vehicle trailing edge leaves grating portal frame detection zone are blocked
The luminous point and the optical signal information and N of previous luminous point being up in longitudinal grating groupbThe optical signal information of individual luminous point, and
Vehicle trailing edge stops collection optical grating construction vertical, horizontal optical signal information when leaving grating portal frame detection zone, wherein：The
NbIndividual luminous point is located on the right side of grating portal frame, and distance grating portal frame horizontal range is Xb。
2. the measuring method of the Vehicle body parameter according to claim 1 based on full raster structure, it is characterized in that, it is described
Judgement vehicle refer to judge that vehicle always takes turns distance between axles, according to first group of wheel and last group of wheel in longitudinal grating group
Optical signal information judges, if the first wheel blocks NsIndividual luminous point and last group of wheel not yet enter the detection of longitudinal grating group
Region, then it is judged as major axis vehicle, is otherwise ordinary vehicle type.
3. the measuring method of the Vehicle body parameter according to claim 1 based on full raster structure, it is characterized in that, it is described
Calculating include：
1) vehicle width and height are calculated：After measurement terminates, horizontal raster group reflects that vehicle to be checked is horizontal at grating portal frame
The circumstance of occlusion of upward luminous point, obtained blocking a most data of spot number according to searching algorithm, i.e., vehicle is in width
At the one of upper distance maximum, the width value W of vehicle is designated as；Vertical grating group can reflect vehicle to be checked at grating portal frame
The circumstance of occlusion of vertical upper luminous point, obtain blocking a most data of spot number, i.e. vehicle according to the every frame data of traversal search
In the height direction at the one of distance maximum, the height value H of vehicle is designated as1, because the mounting distance ground of vertical grating group is deposited
In a certain distance, therefore the exact height of vehicle will also add setting height(from bottom) offset H2, it is designated as the actual height value H of vehicle
=H1+H2；
2) Vehicle length, wheel shaft number and vehicle are calculated and always takes turns distance between axles：According to the information of above three phase acquisition, count respectively
Vehicle leading edge is calculated to the distance L of first group of wheel0, adjacent wheels wheelbase LiAnd last group of wheel to vehicle trailing edge away from
From Lf, finally give Vehicle lengthAnd vehicle wheel number of axle M=m+1, if in the wheel distance between axles of detection vehicle
There is major axis situation, LiCalculation formula according to major axis situation LfCalculate, wherein：M is the detecting system detection of programmed algorithm record
Adjacent wheels distance between axles number, M represent vehicle axles number.
4. the measuring method of the Vehicle body parameter according to claim 1 based on full raster structure, it is characterized in that, it is described
Calculate Vehicle lengthIncluding：
1) the vehicle leading edge described in is approximately to the distance of first group of wheel：
L0=((tn-tb)×vn1+200×(Na-n)+Xa)/1000, unit m, wherein：Na＞ n, tbRepresent that vehicle leading edge enters
The time point of grating portal frame, tnRepresent that first group of wheel blocks the time point for n-th of the luminous point that will be run into,
Represent that first group of wheel blocks (n-1)th luminous point to the average speed for blocking automobile in n-th of luminous point this segment distance, tn-1Represent
First group of wheel blocks the time point of (n-1)th luminous point；
2) vehicle described in always takes turns distance between axles：
A) two axles ordinary vehicle type：Unit is m, wherein：N ＜
Ns,Represent that first group of wheel blocks the N that will be run intosThe time point of individual luminous point, tnRepresenting that last group of wheel blocks will
The time point of n-th of the luminous point run into,Represent that last group of wheel wheel blocks (n-1)th luminous point to blocking
The average speed of automobile, t in n luminous point this segment distancen-1Represent that last group of wheel blocks the time point of (n-1)th luminous point；
B) two axles major axis vehicle：Unit is m, wherein：t1Table
Show that last group of wheel blocks the time point of the 1st luminous point, tnRepresent that first group of wheel blocks n-th of luminous point will running into
Time point,Represent that last group of wheel is averaged by automobile in the 1st luminous point and the 2nd luminous point this segment distance
Speed, t2Represent that last group of wheel blocks the time point of the 2nd luminous point；
C) more wheel shaft major axis vehicles：
3) distance of last group of wheel to vehicle trailing edge described in is approximately：
Lf=(200 × (n-Nb)+Xb-(tn-te)×vn4)/1000, unit m, wherein：N ＞ Nb, teRepresent that vehicle trailing edge leaves
The time point of grating portal frame, tnRepresent that last group of wheel blocks the time point for n-th of the luminous point that will be run into,Represent that last group of wheel blocks (n-1)th luminous point to blocking being averaged for automobile in n-th of luminous point this segment distance
Speed, tn-1Represent that last group of wheel blocks the time point of (n-1)th luminous point.
A kind of 5. Vehicle body parameter measuring system for realizing any of the above-described claim methods described, it is characterised in that including：
Full raster structure, information gathering memory module and the calculating processing module being sequentially connected, wherein：Full raster structure and information gathering
Memory module is connected and transmits optical signal information, and information gathering memory module is connected with calculating processing module and transmission belt timestamp
Optical signal information；
Described full raster structure includes：The grating portal frame that detection triggering grating, horizontal raster group are formed with vertical grating group
With longitudinal grating group.
6. Vehicle body parameter measuring system according to claim 5, it is characterized in that, described detection triggering grating, hang down
Transmitting grating is provided with to grating group, horizontal raster group and longitudinal grating group and receives grating.
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