CN106644007A - Diagonal axis type dynamic weight measurement system and diagonal axis type dynamic weight measurement method - Google Patents
Diagonal axis type dynamic weight measurement system and diagonal axis type dynamic weight measurement method Download PDFInfo
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- CN106644007A CN106644007A CN201610851453.4A CN201610851453A CN106644007A CN 106644007 A CN106644007 A CN 106644007A CN 201610851453 A CN201610851453 A CN 201610851453A CN 106644007 A CN106644007 A CN 106644007A
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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
- G01G19/022—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 wheeled or rolling bodies in motion
- G01G19/024—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 wheeled or rolling bodies in motion using electrical weight-sensitive devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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Abstract
The invention provides a diagonal axis type dynamic weight measurement system and a diagonal axis type dynamic weight measurement method. The system comprises a diagonal piezoelectric axis, a driving-in speed piezoelectric axis and a driving-out speed piezoelectric axis which are arranged in a weight measurement area, and a control device which is connected with the diagonal piezoelectric axis, the driving-in piezoelectric axis and the driving-out speed piezoelectric axis. The control device calculates the weight of a truck according to electrical signals output by the diagonal piezoelectric axis, the driving-in piezoelectric axis and the driving-out speed piezoelectric axis, and displays the weight of the truck. The method comprises the following steps: the time difference is calculated according to two voltage curve peaks obtained when the two front wheels of a truck in a measurement area drive into the driving-in speed piezoelectric axis and the driving-out speed piezoelectric axis, and the speed of the truck is determined; the positions of the wheels are calculated according to the time difference between the two peaks of the front wheels obtained when the two front wheels drive into the diagonal piezoelectric axis; and the control device establishes a relevant database based on the peak area, truck speed, wheel position and ambient temperature obtained through integration of the voltage curve peaks acquired by the two front wheels, the driving-in speed piezoelectric axis and the driving-out speed piezoelectric axis, and a voltage curve is calculated and corrected to get the weight of the truck. The system and the method are used in traffic overweight detection and industrial park anti-theft detection.
Description
Technical field
The invention belongs to dynamically weighting field, in particular it relates to a kind of dynamically weighting system, more particularly, to one kind with right
The dynamically weighting system and method for angle piezoelectric axis correction.
Background technology
In dynamically weighting, double piezoelectric axis+ground induction coils are the most frequently used dynamically weighting methods.At present, conventional dynamic is surveyed
Weighing method, is to calculate speed by entering speed and going out the piezoelectricity peak time difference that ram compression electric axis collects, then by entering speed and going out
Ram compression electric axis voltage curve is integrated and draws peak area, is being calculated with the correction data of car weight according to the peak area measured in advance
Go out calibration curve, car weight in final measuring and calculating.In actual test, because the impact of the characteristic of piezoelectric axis itself and execution conditions,
Being pressed in the voltage signal that the diverse location of piezoelectric axis arrives on actual acquisition affects very big, and automobile is every time through piezoelectric axis
Position is also unfixed, and we can only carry out the correction for mean of single position or multiple positions to the voltage curve of collection,
Finally draw car weight.The error of car weight is measured typically 10% or so, general traffic study demand, prior art can only be met
Measurement wheel lateral attitude is not can determine that, then causes to weigh there is error.
Because requirement of the current China to aspects such as traffic studys is more and more stricter, dynamically weighting application constantly expands
Greatly, as industrial park and space flight military security mechanism are investigated vehicle anti-theft (by testing same vehicle entrance, and the car for leaving
The method of double differences, it is determined whether instrument and equipment is housed in rear-box).These fields are higher to check weighing required precision, traditional dynamic survey
Weight system is difficult to reach requirement.
The content of the invention
To solve the above problems, it is an object of the invention to provide one kind is with diagonal shaft type dynamically weighting method and system, use
In the overweight detection of traffic and the antitheft detection in industrial park.
A kind of a first aspect of the present invention, there is provided diagonal shaft type dynamically weighting system, the system includes being arranged at check weighing area
The diagonal piezoelectric axis in domain, enter ram compression electric axis, go out ram compression electric axis and temperature sensor, and with enter ram compression electric axis and go out ram compression electric axis
The control device of connection, control device is calculated and be shown bogie according to the electric signal for entering ram compression electric axis with go out the output of ram compression electric axis
Weight.
A second aspect of the present invention, there is provided using a kind of diagonal shaft type dynamically weighting side of diagonal shaft type dynamically weighting system
Method, the method includes as follows：
Step SA：Bogie is entered into check weighing region, ram compression electric axis will be entered and gone out between ram compression electric axis to be provided with a distance；
Step SB：According to the voltage twice that two front vehicle wheels of bogie sail ram compression electric axis into and go out between ram compression electric axis
The time difference of curve crest determines bogie vehicle speed；
Step SC：It is bent according to the voltage twice that two front vehicle wheels of bogie sail the diagonal piezoelectric axis with setting angle into
The time difference of line crest calculates wheel position；
Step SD：Control device to two front vehicle wheels, enter ram compression electric axis and go out ram compression electric axis to collect voltage curve crest
PeakArea, bogie speed, wheel position and the environment temperature that integration draws sets up Relational database and calculates correction electricity
Line of buckling draws car weight.
It is an advantage of the current invention that the present invention in dynamically weighting method and system before and after two piezoelectric axis test out speed
While with car weight, due to increased diagonal piezoelectric axis, the lateral attitude of wheel can be measured, solve prior art dynamic and survey
Weight system causes the main cause of weighting error to be because the technical problem that wheel lateral attitude cannot determine, there is diagonal piezoelectricity
The presence of axle, and speed is modified, while also add temperature sensor being corrected for temperature.Therefore improve this
The diagonal shaft type dynamically weighting method and system precision of invention, the advantage of sensitivity is suitable for use in accurate dynamically weighting field.
Description of the drawings
Fig. 1 is the schematic diagram of Z formula dynamically weightings system embodiment 1 of the present invention.
Fig. 2 is the schematic diagram of Z formula dynamically weightings system embodiment 2 of the present invention.
Fig. 3 is the schematic diagram of Z formula dynamically weightings system embodiment 3 of the present invention.
Fig. 4 is the Z formula dynamically weighting method flow diagrams of the present invention.
Accompanying drawing identification number：
1st, diagonal piezoelectric axis 2, enter ram compression electric axis 3, ground induction coil
4th, ram compression electric axis 5, temperature sensor 6, control device are gone out
Specific embodiment
To make the purpose of the present invention, technological invention and advantage clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following embodiment, it is also possible to realize the application technological invention required for protection.
Embodiment 1：
Refer to Fig. 1 to illustrate the present invention relates to a kind of dynamically weighting system, especially it is a kind of with two-way it is parallel enter ram compression
Electric axis 2 constitutes the embodiment of Z formula dynamically weighting systems with go out ram compression electric axis 4 and diagonal piezoelectric axis 11.The present invention's is diagonal
Piezoelectric axis dynamically weighting system is entered ram compression electric axis 2 and is gone out the diagonal piezoelectric axis 1 of ram compression electric axis 4, one and controlled by what is be parallel to each other
Equipment 6 is constituted.The system include be arranged at check weighing region diagonal piezoelectric axis 1, enter ram compression electric axis 2, go out ram compression electric axis 4 and with
Diagonal piezoelectric axis 1, the control device 6 for entering ram compression electric axis 2 and going out the connection of ram compression electric axis 4, control device 6 according to diagonal piezoelectric axis 1,
The electric signal for entering ram compression electric axis 2 and going out the output of ram compression electric axis 4 is calculated and be shown the weight of bogie.
The present embodiment, the diagonal piezoelectric axis 1 is disposed in proximity to the position into the side of ram compression electric axis 2, the diagonal piezoelectricity
Axle 1 and to enter have between ram compression electric axis 2 30 degree～60 degree of angle.
The present embodiment, diagonal piezoelectric axis 1 adds metal tube to make using piezoelectricity cable or piezoelectric membrane.
The present embodiment, the diagonal shaft type dynamically weighting system, also includes：It is arranged at into ram compression electric axis 2 and goes out ram compression electricity
The ground induction coil 3 of position between axle 4.
The present embodiment, it is described to enter ram compression electric axis 2, ground induction coil 3 and to go out between ram compression electric axis 4 to arrange a distance.
The present embodiment, it is described to enter ram compression electric axis 2, ground induction coil 3 and to go out arranged in parallel between ram compression electric axis 4.
The present embodiment, the wheel of the bogie through diagonal piezoelectric axis 1, enter ram compression electric axis 2, ground induction coil 3, go out speed
Piezoelectric axis 4, bogie sails check weighing region into, and load-carrying carriage wheel is sailed into and on to piezoelectricity angle axle 1, the diagonal piezoelectric axis 1
The positional information of bogie wheel is detected and records, corrects, so as to eliminate impact of the wheel position to dynamically weighting system；It is described
Enter ram compression electric axis 2 and detect bogie and enter fast electric signal by enter the velocity variations of ram compression electric axis 2；Ground induction coil 3 is detected
Bogie changes electric signal by the inductance value of ground induction coil 3；Go out ram compression electric axis 4 and detect bogie by going out ram compression electric axis 4
Velocity variations go out fast electric signal；Control device 6, electric signal and speed is gone out according to receiving into fast electric signal, inductance value change
Electric signal is calculated and obtains initial car weight, then initial car weight is calibrated by wheel position, finally draws final car weight.
The advantage of Z formulas dynamically weighting system of the present invention is to test out the same of speed and car weight by Qian Hou two piezoelectric axis
When, due to the presence of diagonal piezoelectric axis 1, the lateral attitude of wheel can be detected, because dynamically weighting system causes weighting error
Main cause be because that wheel lateral attitude cannot determine, have the presence of diagonal piezoelectric axis 1, it is possible to greatly improve and weigh
Precision and sensitivity.
Embodiment 2：
Refer to critical piece and assembling position that Fig. 2 illustrates a kind of diagonal shaft type (Z formulas) dynamically weighting system of the present embodiment
Relation is put, the present embodiment increased temperature sensor 5 in embodiment 1, and the Z formula dynamically weighting systems of the present invention are provided with diagonal
Piezoelectric axis 1, enters ram compression electric axis 2, ground induction coil 3, goes out ram compression electric axis 4, temperature sensor 5, control device 6, wherein：The system bag
Include and be arranged at the diagonal piezoelectric axis 1 in check weighing region, enter ram compression electric axis 2, ground induction coil 3, go out ram compression electric axis 4 and temperature sensor 5,
And with enter ram compression electric axis 2 and go out the control device 6 that ram compression electric axis 4 is connected, control device 6 according to diagonal piezoelectric axis 1, enter ram compression
Electric axis 2 is calculated and be shown the weight of bogie with the electric signal for going out the output of ram compression electric axis 4.
The present embodiment, the diagonal piezoelectric axis 1 is disposed in proximity to the position into the side of ram compression electric axis 2, the diagonal piezoelectricity
Axle 1 and enter between ram compression electric axis 2 have an angle be 30 degree～60 degree.
The present embodiment, the diagonal piezoelectric axis 1 adds metal tube to make using piezoelectricity cable or piezoelectric membrane.
The present embodiment, the diagonal shaft type dynamically weighting system, also including being arranged at into ram compression electric axis 2 and going out ram compression electric axis
The ground induction coil 3 of position between 4.
The present embodiment, it is described to enter ram compression electric axis 2, ground induction coil 3 and to go out between ram compression electric axis 4 to arrange a distance.
The present embodiment, it is described to enter ram compression electric axis 2, ground induction coil 3 and to go out arranged in parallel between ram compression electric axis 4.
The present embodiment, in addition to above-mentioned riding position, described diagonal piezoelectric axis 1 is located at ground to described diagonal piezoelectric axis 1
The top of sense coil 3, the position that described diagonal piezoelectric axis 1 can also be placed in ram compression electric axis 2 and go out between ram compression electric axis 4,
Its test effect of the embodiment is identical.
The present embodiment, the Z formula dynamically weightings system of the present invention also includes temperature sensor 5, and bogie sails check weighing region into,
The wheel of the bogie is through entering ram compression electric axis 2, diagonal piezoelectric axis 1, ground induction coil 3, going out ram compression electric axis 4 and TEMP
Device 5, control device 6 is calculated and be shown the weight of bogie, wherein：Enter ram compression electric axis 2 and detect bogie by entering ram compression electricity
The velocity variations of axle 2 enter fast electric signal；Bogie sails check weighing region into, and bogie wheel is sailed into and positioned to piezoelectricity angle axle
On 1, diagonal piezoelectric axis 1 is detected and recorded, correction wheel position, so as to eliminate shadow of the wheel position to dynamically weighting system
Ring；Ground induction coil 3 detects bogie and changes electric signal by the inductance value of ground induction coil 3；Go out ram compression electric axis 4 and detect load-carrying
Car goes out fast electric signal by going out the velocity variations of ram compression electric axis 4；Temperature sensor 5 detects bogie by temperature sensor
5 temperature change electric signal；Control device 6, electric signal and fast electric signal is gone out according to receiving into fast electric signal, inductance value change
Initial car weight is calculated, then by wheel position and variation of ambient temperature electric signal to initial car weight secondary calibration, is finally drawn final
Car weight.
Embodiment 3：
Refer to Fig. 3 and a kind of diagonal shaft type (Z formulas) dynamically weighting system of the present embodiment is shown, be provided with diagonal piezoelectric axis 1, enter
Ram compression electric axis 2, ground induction coil 3, go out ram compression electric axis 4, temperature sensor 5, control device 6, wherein：The system includes being arranged at survey
The diagonal piezoelectric axis 1 in weight region, enter ram compression electric axis 2, ground induction coil 3, go out ram compression electric axis 4 and temperature sensor 5, and with enter speed
Piezoelectric axis 2 and go out the control device 6 of the connection of ram compression electric axis 4, control device 6 according to diagonal piezoelectric axis 1, enter ram compression electric axis 2 and go out
The electric signal of the output of ram compression electric axis 4 is calculated and be shown the weight of bogie.
The present embodiment is based on embodiment 1-2.The present embodiment also includes：The ground induction coil 3 is placed in into ram compression electricity
Axle 2 and the position gone out between ram compression electric axis 4, described diagonal piezoelectric axis 1 is laid and near the position of the side for going out ram compression electric axis 4
Put.
The present embodiment, the Z formula dynamically weightings system of the present invention also includes temperature sensor 5, and bogie sails check weighing region into,
The wheel of the bogie is through entering ram compression electric axis 2, ground induction coil 3, going out ram compression electric axis 4, temperature sensor 5 and diagonal piezoelectricity
Axle 1, control device 6 is calculated and be shown the weight of bogie, wherein：Enter ram compression electric axis 2 and detect bogie by entering ram compression electricity
The velocity variations of axle 2 enter fast electric signal；Ground induction coil 3 detects bogie and changes telecommunications by the inductance value of ground induction coil 3
Number；Go out ram compression electric axis 4 and detect bogie and go out fast electric signal by go out the velocity variations of ram compression electric axis 4；Temperature sensor 5 is examined
Measure temperature change electric signal of the bogie by temperature sensor 5；Bogie sails check weighing region into, and bogie wheel is sailed into
And on to piezoelectricity angle axle 1, diagonal piezoelectric axis 1 is detected and recorded, correction wheel position, so as to eliminate wheel position to dynamic
The impact of state check weighing system；Control device 6, electric signal and fast electric signal is gone out according to receiving into fast electric signal, inductance value change
Initial car weight is calculated, then by wheel position and variation of ambient temperature electric signal to initial car weight secondary calibration, is finally drawn final
Car weight.
The Z formula dynamically weighting systems of the present invention, with diagonal piezoelectric axis 1.Wheel position can be corrected, so as to eliminate
Impact of the wheel position to dynamically weighting system accuracy.
The Z formula dynamically weighting systems of the present invention, with diagonal piezoelectric axis 1, can be corrected, so as to release rate to speed
Impact to dynamically weighting system accuracy.
The Z formula dynamically weighting systems of the present invention, with temperature sensor 5, can be corrected, so as to eliminate temperature to temperature
Impact to dynamically weighting system accuracy.
Embodiment 4：
The present invention also provides a kind of diagonal shaft type dynamically weighting method using the diagonal shaft type dynamically weighting system, should
Method includes as follows：
Step SA：Sail bogie into check weighing region, ram compression electric axis will be entered and gone out between ram compression electric axis to be provided with a distance；
Step SB：According to the voltage twice that two front vehicle wheels of bogie sail ram compression electric axis into and go out between ram compression electric axis
The time difference of curve crest determines bogie vehicle speed；
Step SC：It is bent according to the voltage twice that two front vehicle wheels of bogie sail the diagonal piezoelectric axis with setting angle into
The time difference of line crest calculates wheel position；
Step SD：Control device to two front vehicle wheels, enter ram compression electric axis and go out ram compression electric axis to collect voltage curve crest
PeakArea, bogie speed, wheel position and the environment temperature that integration draws sets up Relational database and calculates correction electricity
Line of buckling draws car weight.
Embodiment 5：
A kind of enforcement of the diagonal shaft type dynamically weighting method using the diagonal shaft type dynamically weighting system of the present invention
Example, wherein being exemplified as embodiment a-c as described below：
Embodiment a:Refer to Fig. 4 and a kind of diagonal shaft type dynamically weighting method of the present invention based on bogie front vehicle wheel is shown
The present embodiment a, the diagonal shaft type dynamically weighting method based on front vehicle wheel comprises the following steps that：
Step S1：Vehicle starts to sail dynamically weighting region into, and the first front vehicle wheel first presses through diagonal piezoelectric axis 1, control device 6
Detect first time voltage curve crest；
Step S2：First front vehicle wheel is pressed through into ram compression electric axis 2, and control device 6 detects second voltage curve crest simultaneously
Record；
Step S3：, through ground induction coil 3, control device 6 is detected and recording voltage for first front vehicle wheel and the second front vehicle wheel
Curve crest；
Step S4：First front vehicle wheel and the second front vehicle wheel detect and record electricity through going out ram compression electric axis 4, control device 6
Buckle line crest；
Step S5：It is described enter ram compression electric axis 2 with to go out the distance between ram compression electric axis 4 fixed, front vehicle wheel is sailed into into ram compression electricity
Axle 2 and go out two secondary wave crests between ram compression electric axis 4 and calculate the time difference, so that it is determined that car speed；
Step S6：By the time difference of the front vehicle wheel crest twice of diagonal piezoelectric axis 1 of fixed installation angle, wheel can be calculated
Position；
Step S7：Enter ram compression electric axis 2 to front vehicle wheel and go out ram compression electric axis 4 and collect voltage curve crest and be integrated to draw
PeakArea；
Step S8：The automobile of car weight known to control device 6 pairs takes multiple measurements to obtain out position, the temperature of temperature sensor 5
Degree, speed, set up Relational database and calculate calibration curve；
Step S9：Control device 6 combine measure wheel position, Current Temperatures, speed, draw car weight.
Embodiment b:
Refer to Fig. 4 and this enforcement of the present invention based on a kind of diagonal shaft type dynamically weighting method of bogie rear wheel is shown
Example b, the diagonal shaft type dynamically weighting method concrete steps based on rear wheel are identical with order the step of embodiment a, here
It is not described in detail.
Embodiment c:
Referring to Fig. 4 illustrates the present invention based on front vehicle wheel and this reality of a kind of diagonal shaft type dynamically weighting method of rear wheel
A c is applied, a kind of diagonal shaft type dynamically weighting method of the present embodiment c is once that complete dynamically weighting process makes detailed retouching
State as follows：
Step S1：Vehicle starts to sail dynamically weighting region into, and the first front vehicle wheel first presses through diagonal piezoelectric axis 1, control device 6
Detect first time voltage curve crest；
Step S2：First front vehicle wheel is pressed through into ram compression electric axis 2, and control device 6 detects second voltage curve crest simultaneously
Record；
Step S3：, through ground induction coil 3, control device 6 is detected and recording voltage for first front vehicle wheel and the second front vehicle wheel
Curve crest；
Step S4：First front vehicle wheel and the second front vehicle wheel detect and record electricity through going out ram compression electric axis 4, control device 6
Buckle line crest；
Step S5：First rear wheel and the second rear wheel detect and record electricity through entering ram compression electric axis 2, control device 6
Buckle line crest；
Step S6：, through ground induction coil 3, control device 6 is detected and recording voltage for first rear wheel and the second rear wheel
Curve crest；
Step S7：First rear wheel and the second rear wheel detect and record electricity through going out ram compression electric axis 4, control device 6
Buckle line crest；
Step S8：It is described enter ram compression electric axis 2 with to go out the distance between ram compression electric axis 4 fixed, front vehicle wheel is sailed into into ram compression electricity
Axle 2 and go out two secondary wave crests between ram compression electric axis 4 and calculate the time difference, so that it is determined that car speed；
Step S9：By the time difference of diagonal piezoelectric axis 1 front vehicle wheel or the rear wheel crest twice of fixed installation angle, can count
Calculate wheel position；
Step S10：Enter ram compression electric axis 2 to front vehicle wheel or rear wheel and go out ram compression electric axis 4 and collect voltage curve crest
Row integration draws PeakArea；
Step S11：The automobile of car weight known to control device 6 pairs takes multiple measurements to obtain out position, the temperature of temperature sensor 5
Degree, speed, set up Relational database and calculate calibration curve；
Step S12：Control device 6 combine measure wheel position, Current Temperatures, speed, draw car weight.
The present embodiment c is from safety considerations, in the voltage curve crest of step S2, S3, S4 to bogie front vehicle wheel
Data are detected and are recorded, and also the voltage curve crest data of bogie rear wheel are carried out in step S5, S6, S7
Detect and record, the calculated voltage curve crest of the front vehicle wheel used in the present embodiment c, or calculated using rear wheel
The voltage curve crest for arriving, the result of the car weight for obtaining be it is the same, will be front when the present embodiment occurs as a kind of unexpected situation
The voltage curve crest data of wheel or rear wheel as complementary data, so as to improve the service efficiency and peace of present system
Entirely.
The advantage of Z formulas dynamically weighting method of the present invention is to test out the same of speed and car weight by Qian Hou two piezoelectric axis
When, due to the presence of diagonal piezoelectric axis 1, the lateral attitude of wheel can be detected, because dynamically weighting system causes weighting error
Main cause be because that wheel lateral attitude cannot determine, have the presence of diagonal piezoelectric axis 1, it is possible to greatly improve and weigh
Precision and sensitivity.
It is presented herein below according to speed, voltage curve crest, the voltage curve for being related to bogie in all embodiments of the invention
Integral area, wheel position, correction voltage curve computational methods explanation：
1st, bogie is by entering ram compression electric axis 2 and going out the speed calculating of ram compression electric axis 4；
If enter ram compression electric axis 2 with the distance between ram compression electric axis 4 is gone out being, the time difference is, then speed is
2nd, voltage curve crest method is calculated
Step a：Control device 6 gathers always electric signal, and background voltage is；
Step b：When voltage (=1,2,3 ... n, n=gathered datas point sum) is detected, mark, voltage curve crest is opened
Begin；
Step c：When detecting certain point voltage,, mark voltage curve crest top；
Step d：When detecting certain point, mark voltage curve crest terminates.
3rd, voltage curve integral area method is calculated
Control device 6 gathers always electric signal, and background voltage is；
We only describe voltage curve integral area into ram compression electric axis 2 to here, other voltage curves integrations in the present invention
Area computation method is the same：
4th, wheel position method is calculated
In this diagonal piezoelectric axis 1 of description, the situation before ram compression electric axis is entered, at centre, algorithm is the same.
Diagonal piezoelectric axis 1 is pressed through in the front vehicle wheel of bogie, detection voltage curve crest records current time, bogie
Front vehicle wheel is pressed through into ram compression electric axis 2, detection voltage curve crest record current time, according to the speed of bogie, obtains at 2 points
Distance is.
Because during construction, diagonal piezoelectric axis 1 is known as with the angle of ram compression electric axis 2 is entered, and wheel outward flange is to road edge
It is expressed as apart from L：
5th, correction voltage curve method is calculated
Due to setting up what curve mode was just as, a kind of here our corrections for only illustrating between speed and actual car weight
Voltage curve.Step is as follows：It is wherein piezoelectric axis collection voltages signal and the integral area of time.
The first step：For same car weight vehicle, friction speed and integral area curve are set up
Car, car weight=1000kg, correspondence speed curves integration, speed=20
Car, car weight=1000kg, correspondence speed curves integration, speed=50
Car, car weight=1000kg, correspondence speed curves integration, speed=80
Car, car weight=1000kg, correspondence speed curves integration, speed=110
Target velocity correction coefficient is wherein set to, x is target vehicle speed, and equation is；
Interval correction function is,；
, interval correction function is,；
, interval correction function is,；
, interval correction function is,；
>Interval, use, interval correction function；
Second step：For without car weight vehicle, setting up synchronized different weights and integral curve
Car, speed 50, correspondence speed curves integration, car weight=1000kg
Car, speed 50, correspondence speed curves integration, car weight=200kg
Car, speed 50, correspondence speed curves integration, car weight=4000kg
Car, speed 50, correspondence speed curves integration, car weight=8000kg
Target integration car weight coefficient is wherein set to, x is target vehicle speed curve integration：Equation is；
0, interval correction function is,；
, interval correction function,
, interval correction function is,
, interval correction function is,
>Interval, use, interval correction function
3rd step, obtains real car weight
This kind of bearing calibration, it is more accurate in the case where check point is more.Wherein temperature correction facotor, wheel position school
Positive coefficient acceleration correction coefficient algorithm is the same, and here is no longer described.
It should be noted last that, above example is only to illustrate technical scheme and unrestricted.Although ginseng
The present invention has been described in detail according to embodiment, it will be understood by those within the art that, the technical side to the present invention
Case is modified or equivalent, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right in the middle of.
Claims (10)
1. a kind of diagonal shaft type dynamically weighting system, it is characterised in that the system includes being arranged at the diagonal piezoelectricity in check weighing region
Axle, enter ram compression electric axis, go out ram compression electric axis and with diagonal piezoelectric axis, enter ram compression electric axis and go out the control that ram compression electric axis is connected to set
Standby, control device is calculated and be shown bogie according to diagonal piezoelectric axis, the electric signal for entering ram compression electric axis and going out the output of ram compression electric axis
Weight.
2. diagonal shaft type dynamically weighting system according to claim 1, it is characterised in that the diagonal piezoelectric axis is arranged to be leaned on
Closely enter the position of ram compression electric axis side, the diagonal piezoelectric axis and to enter have between ram compression electric axis an angle.
3. diagonal shaft type dynamically weighting system according to claim 1, it is characterised in that diagonal piezoelectric axis uses piezoelectricity cable
Or piezoelectric membrane adds metal tube to make.
4. diagonal shaft type dynamically weighting system according to claim 1, it is characterised in that also include：It is arranged at into ram compression electricity
Axle and go out the ground induction coil of position between ram compression electric axis.
5. diagonal shaft type dynamically weighting system according to claim 4, it is characterised in that it is described enter ram compression electric axis, feel line
Enclose and go out between ram compression electric axis to arrange a distance.
6. diagonal shaft type dynamically weighting system according to claim 4, it is characterised in that it is described enter ram compression electric axis, feel line
Enclose and go out arranged in parallel between ram compression electric axis.
7. diagonal shaft type dynamically weighting system according to claim 4, it is characterised in that described diagonal piezoelectric axis, feel
The position that coil is placed in ram compression electric axis and goes out between ram compression electric axis, and described diagonal piezoelectric axis is on ground induction coil
Side.
8. diagonal shaft type dynamically weighting system according to claim 4, it is characterised in that the ground induction coil is placed in into speed
Piezoelectric axis and the position gone out between ram compression electric axis, described diagonal piezoelectric axis is laid and near the position of the side for going out ram compression electric axis
Put.
9. the diagonal shaft type dynamically weighting system according to any one of claim 1-8, it is characterised in that the car of the bogie
Wheel through diagonal piezoelectric axis, enter ram compression electric axis, ground induction coil, go out ram compression electric axis and temperature sensor, bogie sails check weighing into
Region, and load-carrying carriage wheel sails into and on to piezoelectricity angle axle, the diagonal piezoelectricity shaft detection is simultaneously recorded, corrects bogie wheel
Positional information；It is described enter ram compression electric axis detect bogie and enter fast electric signal by enter the velocity variations of ram compression electric axis；Ground
Sense Coil Detector to bogie changes electric signal by the inductance value of ground induction coil；Go out ram compression electric axis and detect bogie to pass through
The velocity variations of ram compression electric axis go out fast electric signal；Temperature sensor detects environment temperature of the bogie by temperature sensor
Change electric signal；Control device, according to receive change electric signal into fast electric signal, inductance value and go out fast electric signal acquisition is calculated
Initial car weight, then final car weight is finally shown to initial car weight secondary calibration by wheel position and variation of ambient temperature electric signal.
10. a kind of usage right requires the diagonal shaft type dynamically weighting method of diagonal shaft type dynamically weighting system described in 1, the method
Including as follows：
Step SA：Sail bogie into check weighing region, ram compression electric axis will be entered and gone out between ram compression electric axis to be provided with a distance；
Step SB：According to the voltage curve twice that two front vehicle wheels of bogie sail ram compression electric axis into and go out between ram compression electric axis
The time difference of crest determines bogie vehicle speed；
Step SC：The voltage curve ripple twice of the diagonal piezoelectric axis with setting angle is sailed into according to two front vehicle wheels of bogie
The time difference at peak calculates wheel position；
Step SD：Control device to two front vehicle wheels, enter ram compression electric axis and go out ram compression electric axis collect voltage curve crest integration
PeakArea, bogie speed, wheel position and the environment temperature for drawing sets up Relational database and calculates correction voltage song
Line draws car weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783037 | 2016-08-30 | ||
| CN2016107830375 | 2016-08-30 |
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| Publication Number | Publication Date |
|---|---|
| CN106644007A true CN106644007A (en) | 2017-05-10 |
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| CN201610851453.4A Pending CN106644007A (en) | 2016-08-30 | 2016-09-26 | Diagonal axis type dynamic weight measurement system and diagonal axis type dynamic weight measurement method |
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| CN112802339A (en) * | 2020-12-31 | 2021-05-14 | 江苏中路工程技术研究院有限公司 | System and method for measuring transverse distribution of wheel tracks |
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