CN106500810B - A kind of target vehicle weighing method and system - Google Patents
A kind of target vehicle weighing method and system Download PDFInfo
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- CN106500810B CN106500810B CN201611025202.7A CN201611025202A CN106500810B CN 106500810 B CN106500810 B CN 106500810B CN 201611025202 A CN201611025202 A CN 201611025202A CN 106500810 B CN106500810 B CN 106500810B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
- G01G19/035—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion using electrical weight-sensitive devices
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The embodiment of the invention discloses a kind of target vehicle weighing method and systems.This method comprises: obtaining the strain data that multiple strain transducers acquisitions in weight scale body are arranged in when target vehicle passes through the weight scale body on track；According to strain data and sensor position data, obtains wheel and roll position data；Position data and sensor position data are rolled according to wheel, each strain transducer is obtained and wheel rolls the relative distance data of position；According to relative distance data and default weighing gain function, the weighing gain of each strain transducer is obtained；According to the strain data that the weighing gain of each strain transducer and each strain transducer acquire, the average weight of wheel is obtained；The weight of target vehicle is obtained according to the average weight of wheel.The embodiment of the present invention calculates the weight for obtaining target vehicle based on the strain data of weight scale body, compared with prior art, the advantages of having while improving weighing precision, reduce resource loss.
Description
Technical field
The present embodiments relate to Vehicle weigh-in-motion technology fields, and in particular to a kind of target vehicle weighing method and is
System.
Background technique
Currently, domestic road vehicle dynamic weighing product is broadly divided into two classes: one kind is in complete-vehicle-type and axis group formula etc.
The scale body of embedding sensor is the conventional low weighing product of representative；Another kind of claimed with integral types such as fillet, quartz and piezoelectric films
Retransmit the high-speed weighing product that sensor is representative.
Conventional low weighing product is usually to support a wider weighing table jointly by multiple independent sensors, is permitted
Perhaps vehicle bearing or axis group even vehicle travel the weighing area on weighing table.Although dynamic weighing precision is higher,
Its volume is larger, and consumable quantity and installation amount are very big and the period is longer, while having higher cost, and stability is poor, need through
Often the disadvantages of maintenance.
And high-speed weighing product generally uses integrated weighing sensor, i.e. scale body inherently weighing sensor, size
It is smaller how in a strip shape, and frequently with mostly with the mode of strip sensor joint layout in practice.Therefore, opposite construction
It is shorter to measure smaller and construction period, it is small to road damage, it does not need to be regularly maintained, but weighing precision is not relatively high, and to peace
It fills and safeguards more demanding.
Summary of the invention
One purpose of the embodiment of the present invention is to solve the prior art to be difficult to meet raising weighing precision simultaneously and reduce money
The problem of source loss requires.
The embodiment of the present invention proposes a kind of target vehicle weighing method, comprising:
When target vehicle passes through the weight scale body on track, acquisition is arranged in weight scale body and target vehicle row
Sail the strain data of the multiple strain transducers acquisition being spaced apart on the perpendicular direction in direction；
According to the position data of the strain data of each strain transducer acquisition and each strain transducer, obtains wheel and grind
Press position data；
The position data that position data and each strain transducer are rolled according to wheel obtains each strain transducer and vehicle
Wheel rolls the relative distance data of position；
The relative distance data of position, and default weighing gain function are rolled according to each strain transducer and wheel, are obtained
Take the weighing gain of each strain transducer；
According to the strain data that the weighing gain of each strain transducer and each strain transducer acquire, wheel is obtained
Average weight；
The weight of target vehicle is obtained according to the average weight of wheel.
Preferably, the position data of the strain data acquired according to each strain transducer and each strain transducer,
The step of wheel rolls position data is obtained to specifically include:
Obtain the strain data of each strain transducer of object time and the position coordinates of each strain transducer；
According to the position data of the strain data of each strain transducer of object time and each strain transducer, mesh is obtained
The first of mark moment rolls position coordinates；
According to the strain data of different moments each strain transducer acquisition, obtains the first of different moments and roll position seat
Mark；
In conjunction with weighted average method, position coordinates acquisition vehicle is rolled according to the first of different moments and rolls position coordinates,
I.e. wheel rolls position data.
Preferably, described according to the strain data of each strain transducer of object time and the position of each strain transducer
Data, obtaining for the first of object time the step of rolling position coordinates specifically includes:
According to the position data of the strain data of each strain transducer of object time and each strain transducer, in conjunction with
Lower formula, obtain object time first roll position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=dij,(i,j≤N)
Wherein, xcFirst for the object time rolls position coordinates；xiFor the pre-stored of i-th strain transducer
Position coordinates；yiFor the strain data of i-th of strain transducer of object time during wheels travel；N is strain transducer
Total number；F is to roll position coordinates xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,
yN) between relation function；dijFor the spacing distance of i-th of strain transducer and j-th of strain transducer, i, j=1,2 ... N.
Preferably, the strain data acquired according to the weighing gain of each strain transducer and each strain transducer,
The step of obtaining the average weight of wheel specifically includes:
Each strain transducer is obtained according to the first wheel weight of weighing gain and strain data output；
According to the following formula, processing is weighted and averaged to the first wheel weight of each strain transducer output, obtained flat
Equal wheel weight G:
Wherein, GiFor the first wheel weight of i-th of strain transducer output；a1,a2,…aNFor each strain transducer
The weight of first wheel weight, and a1+a2+…aN=1.
Preferably, the step of weight that target vehicle is obtained according to the average weight of wheel specifically includes:
The average weight of all wheels is added, the weight of the target vehicle is obtained.
The invention also provides a kind of target vehicle weighing systems, comprising:
First obtains module, when for passing through the weight scale body on track when target vehicle, obtaining setting and weighing
The dependent variable of the multiple strain transducers acquisition being spaced apart in scale body on the direction perpendicular with target vehicle driving direction
According to；
First processing module, the position of strain data and each strain transducer for being acquired according to each strain transducer
Data are set, wheel is obtained and rolls position data；
Second processing module is obtained for rolling the position data of position data and each strain transducer according to wheel
Each strain transducer and wheel roll the relative distance data of position；
Third processing module, for rolling the relative distance data of position according to each strain transducer and wheel, and it is pre-
If weighing gain function, the weighing gain of each strain transducer is obtained；
Fourth processing module is answered for what is acquired according to the weighing gain of each strain transducer and each strain transducer
Parameter evidence obtains the average weight of wheel；
Second obtains module, for obtaining the weight of target vehicle according to the average weight of wheel.
Preferably, the first processing module, specifically for obtain each strain transducer of object time strain data with
And the position coordinates of each strain transducer；According to the strain data and each strain transducer of each strain transducer of object time
Position data, obtain object time first roll position coordinates；According to the strain of different moments each strain transducer acquisition
Data, obtain different moments first roll position coordinates；In conjunction with weighted average method, position is rolled according to the first of different moments
It sets coordinate acquisition vehicle and rolls position coordinates, is i.e. wheel rolls position data.
Preferably, the first processing module, specifically for the strain data according to each strain transducer of object time, with
And the position data of each strain transducer, in conjunction with following formula, obtain object time first rolls position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=dij,(i,j≤N)
Wherein, xcPosition coordinates are rolled for the object time first；xiFor the pre-stored position of i-th of strain transducer
Set coordinate；yiFor the strain data of i-th of strain transducer of object time during wheels travel；N is the total of strain transducer
Number；F is to roll position coordinates xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,
yN) between relation function；dijFor the spacing distance of i-th of strain transducer and j-th of strain transducer, i, j=1,2 ... N.
Preferably, the fourth processing module is specifically used for obtaining each strain transducer according to weighing gain and dependent variable
According to the first wheel weight of output；According to the following formula, the first wheel weight of each strain transducer output is weighted flat
It handles, obtains average wheel weight G:
Wherein, GiFor the first wheel weight of i-th of strain transducer output；a1,a2,…aNFor each strain transducer
The weight of first wheel weight, and a1+a2+…aN=1.
Preferably, described second module is obtained, specifically for the average weight of all wheels to be added, obtains the target
The weight of vehicle.
As shown from the above technical solution, the target vehicle weighing method and system that the embodiment of the present invention proposes are based on weight scale
The strain data of body calculates the weight for obtaining target vehicle, compared with prior art, has while improving weighing precision, drop
The advantages of low-resource is lost.
Detailed description of the invention
The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, and attached drawing is schematically without that should manage
Solution is carries out any restrictions to the present invention, in the accompanying drawings:
Fig. 1 shows a kind of flow diagram of target vehicle weighing method of one embodiment of the invention offer；
The structural representation of weight scale body in a kind of target vehicle weighing method provided Fig. 2 shows one embodiment of the invention
Figure；
Fig. 3 be using Fig. 2 shows weight scale body obtain weighing precision result figure；
Fig. 4 shows a kind of structural schematic diagram of target vehicle weighing system of one embodiment of the invention offer.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of flow diagram of target vehicle weighing method of one embodiment of the invention offer, referring to figure
1, the target vehicle weighing method, comprising:
110, when target vehicle passes through the weight scale body on track, acquisition is arranged in weight scale body and target carriage
The strain data of the multiple strain transducers acquisition being spaced apart on the perpendicular direction of driving direction；
It should be noted that weight scale body is elastic material, strain transducer is being weighed along perpendicular to driving direction setting
On scale body, to measure strain data when vehicle rolls weight scale body；
It will be appreciated that having note for installation site, the number of each strain transducer when installing each strain transducer
Record, and the data of record are stored in processor.It, can also be by the strain as a result, when acquiring the strain data of strain transducer
The number or other identifier information of sensor acquire together.
In addition, strain transducer is distributed with kinds of schemes, and such as: it is in one line etc., it is no longer defined herein.
120, according to the position data of the strain data of each strain transducer acquisition and each strain transducer, vehicle is obtained
Wheel rolls position data；
It should be noted that passing through each moment of weight scale body in target vehicle, each strain transducer can be detected
A strain data is obtained, processor calculates the stone roller for obtaining wheel under the moment according to the strain data of all strain transducers
Press position data；Similarly, the strain data based on the acquisition of multiple moment strain transducers, processor, which calculates, obtains multiple moment pair
That answers rolls position data；And based on multiple moment it is corresponding roll position data calculate obtain one averagely roll position, remember
Position is rolled for wheel；
It will be appreciated that the quantity of strain transducer can be depending on precision prescribed requirement.
130, the position data that position data and each strain transducer are rolled according to wheel obtains each strain transducer
The relative distance data of position are rolled with wheel；
It should be noted that the relative distance data that each strain transducer and wheel roll position can be by establishing coordinate
The method of system, which calculates, to be obtained；
That is, pre-establishing coordinate system, the position coordinates of each strain transducer are recorded；Position coordinates are rolled getting wheel
When, position coordinates are rolled according to the position coordinates of strain transducer and wheel, calculates and obtains relative distance data.140, according to each
Strain transducer and wheel roll the relative distance data of position, and default weighing gain function, obtain each strain transducer
Weighing gain；
It should be noted that weighing gain function is the relation function of sensor weighing gain and relative distance, Ke Yitong
It crosses and weight scale body test calibration is obtained.
150, the strain data acquired according to the weighing gain of each strain transducer and each strain transducer, obtains vehicle
The average weight of wheel.
160, the weight of target vehicle is obtained according to the average weight of wheel；
It will be appreciated that the wheel weight of all wheels is added, the weight of the target vehicle can be obtained.
The present embodiment calculates the weight for obtaining target vehicle based on the strain data of weight scale body, compared with prior art,
The advantages of with resource loss is reduced while improving weighing precision.
In the present embodiment, step 120 is specifically included:
Obtain the strain data of each strain transducer of object time and the position coordinates of each strain transducer；
According to the position data of the strain data of each strain transducer of object time and each strain transducer, mesh is obtained
The first of mark moment rolls position coordinates；
According to the strain data of different moments each strain transducer acquisition, obtains the first of different moments and roll position seat
Mark；
In conjunction with weighted average method, position coordinates acquisition vehicle is rolled according to the first of different moments and rolls position coordinates,
I.e. wheel rolls position data.
Wherein, first roll position coordinates calculating process it is as follows:
According to the position data of the strain data of each strain transducer of object time and each strain transducer, in conjunction with
Lower formula, obtain object time first roll position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=dij,(i,j≤N)
Wherein, xcPosition coordinates are rolled for described first；xiFor the pre-stored position coordinates of i-th of strain transducer；yi
For the strain data of i-th of strain transducer during wheels travel；N is the total number of strain transducer；F is to roll position seat
Mark xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,yN) between relation function；dijFor
The spacing distance of i-th of strain transducer and j-th of strain transducer, i, j=1,2 ... N.
The structural representation of weight scale body in a kind of target vehicle weighing method provided Fig. 2 shows one embodiment of the invention
Figure, referring to fig. 2, which includes consolidation zone and Weighing Area；
Consolidation zone is connect with Weighing Area, for fixing Weighing Area, and weight scale body can be made to connect with external device (ED)；This
The external device (ED) at place can be weighing platform or be track etc.；
Multiple strain transducers are provided on Weighing Area, the distribution mode of strain transducer is to be evenly distributed on weighing herein
On the center line of the cross section of area in the horizontal direction；
It will be appreciated that the distribution arrangement of sensor and the direction of traffic of vehicle are mutually perpendicular to.
It is described in detail below with reference to working principle of the Fig. 2 to the embodiment of the present invention:
Step 1, on scale body as shown in Figure 2, along perpendicular to equally spacedly installing multiple strain sensings in driving direction
Device, and each sensor is installed on the center line of weighing platform Weighing Area, records the position coordinates of each sensor.Here each sensor
Using equidistant arrangement, in order to guarantee the symmetry of structural constraint and the consistency of each sensor, facilitate subsequent weighing gain meter
It calculates；And the spacing d of two neighboring sensor should be less than 200mm, it is less to prevent the excessive valid data of spacing.While in order to guarantee scale
The service life of body should be less than 500mm along driving direction scale body width.
When vehicle rolls weight scale body, scale body generates flexible deformation, and the scale body that strain transducer measures corresponding position is answered
Parameter evidence.In order to facilitate data acquisition and processing (DAP), each strain transducer data are acquired using branch grouping here, and guarantee every group
Sensor only shows data all the way, rolls position calculating for step 2 and prepares；
Step 2, the strain data of each strain transducer in the same time is extracted as instantaneous strain data, according to instantaneous strain number
According to the position coordinates with each strain transducer, determine that wheel instantaneously rolls position, specific formula along perpendicular in driving direction
Are as follows:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=(j-i) d, (i, j≤N)
Wherein, xcPosition coordinates are rolled for described first；xiFor the pre-stored position coordinates of i-th of strain transducer；yi
For the strain data of i-th of strain transducer during wheels travel；D is the spacing distance of two neighboring sensor, and f is to roll
Position coordinates xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,yN) between relationship letter
Number.Wherein it is determined that wheel rolls position coordinates xcFunction f specifically refer to, synchronization N number of data to (x1,y1),
(x2,y2),…,(xN,yN) in choose identical two data of n group non-zero instantaneous strain data to (xi,yi) and (xm,ym), i.e. yi
=ym≠0,xi≠xm(if it does not exist, then being obtained by the way of linear interpolation), according to symmetry it is found that determining that wheel rolls
Position coordinates
That is, according to N number of data of each moment to (x1,y1),(x2,y2),…,(xN,yN), quadratic polynomial fitting is carried out,
The coordinate of gained symmetry axis is that the first wheel rolls position xc。
Further, the strain data of different moments each strain transducer is chosen, above-mentioned first is repeated and rolls position coordinates
Calculating step, obtain different moments wheel along perpendicular in driving direction instantaneously roll position, be weighted and averaged to obtain
Final wheel rolls position.
Step 3, position is rolled according to above-mentioned wheel and prestores the position of each sensor, determine that each sensor is rolled with wheel
The relative distance of position；
Step 4, the relative distance and weighing gain function meter of position are rolled according to the resulting each sensor of step 3 and wheel
Calculate the weighing gain k of each strain transduceri；
Wherein, weighing gain function is the relation function that strain transducer is weighed between gain and above-mentioned relative distance, is answered
Become the ratio of strain data and tire weight that sensor weighing gain acquires into strain transducer；Above-mentioned weighing gain function can
In test measurement, by repeatedly testing weight scale body and demarcating to obtain.
Step 5, according to sensor weighing gain kiWith strain transducer data Ti, obtain wheel weight Gi.Wherein, for
Each sensor i can be calculated a wheel weight G by its registrationi, and last output wheel weight G be then by the wheel weight of all calculating,
What the difference according to relative distance was weighted and averaged, i.e.,
Wherein, GiFor the first wheel weight of i-th of strain transducer output, a1,a2,…aNIt is nonnegative number, respectively to answer
Become the weight that sensor calculates wheel weight, the weight and only, relative distance related with the relative distance information of each strain transducer
The smaller weight coefficient of the distance value carried in information is bigger, and a1+a2+…aN=1.
Step 6, all wheel weights obtained above are directly summed it up, and value is exactly the weight of entire target vehicle.
High-precision based on wheel weight is as a result, gained complete vehicle weight precision is also fine, as shown in Figure 3.
For method implementation, for simple description, therefore, it is stated as a series of action combinations, but ability
Field technique personnel should be aware of, and embodiment of the present invention is not limited by the described action sequence, because according to the present invention
Embodiment, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that,
Embodiment described in this description belongs to preferred embodiment, related movement embodiment party not necessarily of the present invention
Necessary to formula.
Fig. 4 shows a kind of structural schematic diagram of target vehicle weighing system of one embodiment of the invention offer, referring to figure
4, the target vehicle weighing system, comprising: first obtain module 41, first processing module 42, Second processing module 43, at third
Module 44, fourth processing module 45 and the second acquisition module 46 are managed, wherein；
First obtains module 41, when for passing through the weight scale body on track when target vehicle, obtaining setting and claiming
The strain of the multiple strain transducers acquisition being spaced apart in weight scale body on the direction perpendicular with target vehicle driving direction
Data；
First processing module 42, strain data and each strain transducer for being acquired according to each strain transducer
Position data obtains wheel and rolls position data；
Second processing module 43 is obtained for rolling the position data of position data and each strain transducer according to wheel
Each strain transducer and wheel is taken to roll the relative distance data of position；
Third processing module 44, for rolling the relative distance data of position according to each strain transducer and wheel, and
Default weighing gain function, obtains the weighing gain of each strain transducer；
Fourth processing module 45, for what is acquired according to the weighing gain of each strain transducer and each strain transducer
Strain data obtains the average weight of wheel；
Second obtains module 46, for obtaining the weight of target vehicle according to the average weight of wheel.
It needs to be that when target vehicle wheel rolls weight scale body, elastic deformation occurs for weight scale body, and first obtains module
41 acquisition strain transducers measure the strain data of corresponding position, and collected data are sent to 42 He of first processing module
Fourth processing module 45；First processing module 42, the strain data for being acquired according to each strain transducer, and each strain pass
The position data of sensor obtains wheel and rolls position data；Second processing module 43 is used to roll position data according to wheel, with
And the position data of each strain transducer, obtain the relative distance data that each strain transducer rolls position with corresponding wheel；
Third processing module 44 rolls the relative distance data of position, and default weighing according to each strain transducer with corresponding wheel
Gain function obtains the weighing gain of each strain transducer, and the data that will acquire are sent to fourth processing module 45；4th
The strain data that processing module 45 is acquired according to the weighing gain of each strain transducer received and each strain transducer,
Obtain the average weight of wheel；Second obtains module 46, and the weight of all wheels for will be obtained according to above-mentioned steps is added,
Obtain the weight of target vehicle.
In the present embodiment, the first processing module 42, specifically for obtaining the strain of each strain transducer of object time
The position coordinates of data and each strain transducer；According to the strain data of each strain transducer of object time, and each strain
The position data of sensor, obtain object time first roll position coordinates；According to different moments each strain transducer acquisition
Strain data, obtain different moments first roll position coordinates；In conjunction with weighted average method, according to the first of different moments
It rolls position coordinates acquisition vehicle and rolls position coordinates, is i.e. wheel rolls position data.
In the present embodiment, the first processing module 42, specifically for the strain according to each strain transducer of object time
The position data of data and each strain transducer, in conjunction with following formula, obtain object time first rolls position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=(j-i) d, (i, j≤N)
Wherein, xcPosition coordinates are rolled for described first；xiFor the pre-stored position coordinates of i-th of strain transducer；yi
For the strain data of i-th of strain transducer during wheels travel；N is the total number of strain transducer；F is to roll position seat
Mark xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,yN) between relation function；D is
The spacing of two neighboring sensor.
In the present embodiment, the fourth processing module 45, be specifically used for obtaining each strain transducer according to weighing gain and
First wheel weight of strain data output；According to the following formula, the first wheel weight of each strain transducer output is carried out
Weighted average processing, obtains average wheel weight G:
Wherein, GiFor the first wheel weight of i-th of strain transducer output；a1,a2,…aNFor each strain transducer
The weight of first wheel weight, and a1+a2+…aN=1.
For system embodiment, since it is substantially similar to method implementation, so be described relatively simple,
Related place illustrates referring to the part of method implementation.
It should be noted that in all parts of system of the invention, according to the function that it to be realized to therein
Component has carried out logical partitioning, and still, the present invention is not only restricted to this, can according to need all parts are repartitioned or
Person's combination.
All parts embodiment of the invention can be implemented in hardware, or to transport on one or more processors
Capable software module is realized, or is implemented in a combination thereof.In this system, PC is by realizing internet to equipment or device
Long-range control, the step of accurately controlling equipment or device each operation.The present invention is also implemented as executing here
Some or all device or device programs of described method are (for example, computer program and computer program produce
Product).Program of the invention, which is achieved, can store on a computer-readable medium, and the file or document tool that program generates
There is statistics available property, generate data report and cpk report etc., batch testing can be carried out to power amplifier and counts.On it should be noted that
Stating embodiment, illustrate the present invention rather than limit it, and those skilled in the art are not departing from
It can be designed replacement embodiment in the case where attached the scope of the claims.It in the claims, should not will be between bracket
Any reference symbol be configured to limitations on claims.Word "comprising" does not exclude the presence of member not listed in the claims
Part or step.Word "a" or "an" located in front of the element does not exclude the presence of multiple such elements.The present invention can borrow
Help include the hardware of several different elements and be realized by means of properly programmed computer.If listing equipment for drying
Unit claim in, several in these devices, which can be, to be embodied by the same item of hardware.Word first,
Second and the use of third etc. do not indicate any sequence.These words can be construed to title.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (8)
1. a kind of target vehicle weighing method characterized by comprising
When target vehicle passes through the weight scale body on track, acquisition is arranged in weight scale body and target vehicle traveling side
The strain data of the multiple strain transducers acquisition being spaced apart on perpendicular direction；
Obtain the strain data of each strain transducer of object time and the position data of each strain transducer；
According to the position data of the strain data of each strain transducer of object time and each strain transducer, when obtaining target
First carved rolls position coordinates；
According to the strain data of different moments each strain transducer acquisition, obtain different moments first rolls position coordinates；
In conjunction with weighted average method, position coordinates acquisition vehicle is rolled according to the first of different moments and rolls position coordinates, i.e. vehicle
Wheel rolls position data；
The position data that position data and each strain transducer are rolled according to wheel, obtains each strain transducer and wheel is ground
Press the relative distance data of position；
The relative distance data of position, and default weighing gain function are rolled according to each strain transducer and wheel, are obtained each
The weighing gain of strain transducer；
According to the strain data that the weighing gain of each strain transducer and each strain transducer acquire, being averaged for wheel is obtained
Weight；
The weight of target vehicle is obtained according to the average weight of wheel.
2. the method according to claim 1, wherein the dependent variable according to each strain transducer of object time
According to and each strain transducer position data, obtaining for the first of object time the step of rolling position coordinates specifically includes:
According to the position data of the strain data of each strain transducer of object time and each strain transducer, in conjunction with following public affairs
Formula, obtain object time first roll position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=dij,(i,j≤N)
Wherein, xcFirst for the object time rolls position coordinates；xiFor the pre-stored position of i-th of strain transducer
Coordinate；yiFor the strain data of i-th of strain transducer of object time during wheels travel；N is total of strain transducer
Number；F is to roll position coordinates xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,yN)
Between relation function；dijFor the spacing distance of i-th of strain transducer and j-th of strain transducer, i, j=1,2 ... N.
3. the method according to claim 1, wherein the weighing gain according to each strain transducer, and
The strain data of each strain transducer acquisition, the step of obtaining the average weight of wheel, specifically include:
Each strain transducer is obtained according to the first wheel weight of weighing gain and strain data output；
According to the following formula, processing is weighted and averaged to the first wheel weight of each strain transducer output, obtains average vehicle
Take turns weight G:
Wherein, GiFor the first wheel weight of i-th of strain transducer output；a1,a2,…aNIt is right respectively with each strain transducer
The weight for the first wheel weight answered, and a1+a2+…aN=1.
4. method according to claim 1-3, which is characterized in that described to obtain mesh according to the average weight of wheel
The step of marking the weight of vehicle specifically includes:
The average weight of all wheels of target vehicle is added, the weight of the target vehicle is obtained.
5. a kind of target vehicle weighing system characterized by comprising
First obtains module, when for passing through the weight scale body on track when target vehicle, obtaining and being arranged in weight scale body
In the multiple strain transducers acquisition being spaced apart on the direction perpendicular with target vehicle driving direction strain data；
First processing module, for obtaining the strain data of each strain transducer of object time and the position of each strain transducer
Coordinate；According to the position data of the strain data of each strain transducer of object time and each strain transducer, when obtaining target
First carved rolls position coordinates；According to the strain data of different moments each strain transducer acquisition, the of different moments is obtained
One rolls position coordinates；In conjunction with weighted average method, position coordinates acquisition vehicle is rolled according to the first of different moments and rolls position
Coordinate is set, i.e. wheel rolls position data；
Second processing module, for rolling the position data of position data and each strain transducer according to wheel, acquisition is respectively answered
Become sensor and wheel rolls the relative distance data of position；
Third processing module, for rolling the relative distance data of position, and default title according to each strain transducer and wheel
Weight gain function, obtains the weighing gain of each strain transducer；
Fourth processing module, for the dependent variable according to the weighing gain of each strain transducer and the acquisition of each strain transducer
According to obtaining the average weight of wheel；
Second obtains module, for obtaining the weight of target vehicle according to the average weight of wheel.
6. system according to claim 5, which is characterized in that the first processing module, when being specifically used for according to target
The strain data of each strain transducer and the position data of each strain transducer are carved, in conjunction with following formula, obtains object time
First roll position coordinates:
xc=f (x1,y1,x2,y2,…,xN,yN)
xi-xj=dij,(i,j≤N)
Wherein, xcPosition coordinates are rolled for object time first；xiFor the pre-stored position coordinates of i-th of strain transducer；yi
For the strain data of i-th of strain transducer of object time during wheels travel；N is the total number of strain transducer；F is to grind
Press position coordinates xc, each strain transducer position coordinates (x1,x2,…xN) and strain data (y1,y2,…,yN) between relationship
Function；dijFor the spacing distance of i-th of strain transducer and j-th of strain transducer, i, j=1,2 ... N.
7. system according to claim 5, which is characterized in that the fourth processing module is specifically used for obtaining each strain
The first wheel weight that sensor is exported according to weighing gain and strain data；According to the following formula, defeated to each strain transducer
The first wheel weight out is weighted and averaged processing, obtains average wheel weight G:
Wherein, GiFor the first wheel weight of i-th of strain transducer output；a1,a2,…aNFor the first vehicle of each strain transducer
Take turns the weight of weight, and a1+a2+…aN=1.
8. according to the described in any item systems of claim 5-7, which is characterized in that described second obtains module, and being specifically used for will
The average weight of all wheels is added, and obtains the weight of the target vehicle.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1062036A (en) * | 1987-11-30 | 1992-06-17 | 梅特勒-托利多有限公司 | A kind of method of multiple load cell scale being carried out the load position compensation |
| CN101603852A (en) * | 2008-11-25 | 2009-12-16 | 无锡虹业自动化工程有限公司 | Truck scale dynamic axle weighing system |
| CN102519570A (en) * | 2011-12-20 | 2012-06-27 | 四川兴达明科机电工程有限公司 | System for identifying position area of vehicle passing through lane |
| CN202350894U (en) * | 2011-12-20 | 2012-07-25 | 四川兴达明科机电工程有限公司 | Vehicle weighing system |
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| JP5327796B2 (en) * | 2009-02-25 | 2013-10-30 | 国立大学法人東京工業大学 | Vehicle weight measuring system for vehicles passing through bridge, vehicle weight measuring method for vehicles passing through bridge, and computer program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062036A (en) * | 1987-11-30 | 1992-06-17 | 梅特勒-托利多有限公司 | A kind of method of multiple load cell scale being carried out the load position compensation |
| CN101603852A (en) * | 2008-11-25 | 2009-12-16 | 无锡虹业自动化工程有限公司 | Truck scale dynamic axle weighing system |
| CN102519570A (en) * | 2011-12-20 | 2012-06-27 | 四川兴达明科机电工程有限公司 | System for identifying position area of vehicle passing through lane |
| CN202350894U (en) * | 2011-12-20 | 2012-07-25 | 四川兴达明科机电工程有限公司 | Vehicle weighing system |
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