CN104303027B - The sensor assembly of WIM system and measuring method - Google Patents

The sensor assembly of WIM system and measuring method Download PDF

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Publication number
CN104303027B
CN104303027B CN201380025189.3A CN201380025189A CN104303027B CN 104303027 B CN104303027 B CN 104303027B CN 201380025189 A CN201380025189 A CN 201380025189A CN 104303027 B CN104303027 B CN 104303027B
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sensor
strip type
rut
type sensor
group
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CN104303027A (en
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大卫·科尔尼
安德里安·霍夫曼
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Kistler Holding AG
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Kistler Holding AG
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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The present invention relates to the sensor assembly (1) of a kind of axle speed for measuring two-wheel rut vehicle and axle weight, described vehicle is on runway with two traveling rut (S, S ') travel along travel direction (L), described sensor assembly includes being arranged on the first and second rut group (I, II the multiple piezoelectric type strip type sensor (A in), B, C, D).According to the present invention, all strip type sensor (A, B, C, D) all mutually it is intervally installed with the vertical misalignment (LAD) more than the fixation of maximum wheel contact length (300) along travel direction (L), and transversely mutually arranged with the side-play amount between 1cm to 15cm.Described sensor assembly (1) also has the block length (LABCD) less than 80cm.

Description

The sensor assembly of WIM system and measuring method
Technical field
The present invention relates to the sensor assembly of a kind of axle speed for measuring two-wheel rut vehicle and axle weight, it includes multiple pressures Electric-type strip type sensor (Streifensensoren), and be related to a kind of for vehicle runway is up sail when dynamic weight The method of measurement, wherein using the WIM system (dynamic weighing system) with multiple strip type sensor.
Background technology
The dynamic weight measurement of the vehicle being in road traffic on motor process middle rolling car road is by WIM system (dynamic weighing) is come to determine.
Known WIM system based on so-called strip type sensor, its along runway longitudinally with some meters of spacing It is set at each interval.Banding and smooth strip type sensor is designed to piezoelectric type, and respectively with less installation Depth embeds in runway surface, and is there fixed.Sensor width in travel direction is usually designed to some Centimetre the order of magnitude, therefore whole wheel contact surface can not be analyzed.By means of piezoelectric effect, the detection of voltage signal is Very simple.Detected piezoelectric signal can be converted into force signal, here, the cost of strip type sensor is very low.Bar Type sensor is connected with signal detection electronic installation by holding wire, and measurement signal can be passed by this signal detection electronic installation Defeated to analytic unit.
There are various different layouts for sensor array (Sensoranordnung, sensor device), one kind is for example The so-called complete layout (FULL, Fig. 4 a) being proposed according to patent documentation US 2011/0127090, and one kind is according to patent The staggered layout (STAGGERED, Fig. 4 b) that document WO 02/23504 proposes.
When vehicle crosses, resolved detection is carried out in time to measurement signal, therefrom can be inferred that current speed. If wheel of vehicle interlocks in time scrolls through two sensors, can be carried based on axle and two measurement signals is detected, One is detected by first sensor, and one is detected by that sensor being arranged on below along travel direction.Axle speed can be by two Spacing between individual sensor to determine divided by the time migration of measurement between the signal of two sensors, as illustrated in fig. 4 c. Carry it is necessary to sensor signal is integrated (aufintegriert integrates) in order to axle is calculated according to sensor signal, and be multiplied by car Speed and calibration constants.This is requisite for including the WIM system of multiple thin strip type sensor, and wherein wheel surface is not Can be entirely located in this strip type sensor.
In order to by means of not allowing the strip type sensor directly carrying out weight detecting to carry out weight measurement exactly it is necessary to non- Often realize the measurement to speed exactly.
But, the practical application that changes of travel speed for the vehicle when crossing WIM system it is known that sensor Array is unfavorable, because the accuracy of weight detecting can be badly damaged.This in particular will happens in the application in following scope： Charge station, control station and other require or wish the weight measurement that is being accurately calibrated and vehicle with irregular speed or The place of WIM system is even lentamente crossed with the driving mode of " loitering ".
Content of the invention
It is an object of the invention to proposing a kind of sensor array of WIM system, it has multiple strip type sensor, described Strip type sensor can realize more preferable tachometric survey in crossing of change under speed, wherein decreases the generation of measurement error, And increased successful tachometric survey rate (especially in the case of the driving mode of " loitering ").
This purpose to be realized by the sensor assembly with feature described in claim 1.In order to realize this purpose, using one Plant the sensor assembly of the axle speed for measuring two-wheel rut vehicle, it includes the strip type sensor of multiple piezoelectric types, wherein, extremely With respect to travel direction, laterally and at each interval at least four strip type sensor are set in few two rut groups so that The axle speed of each axle of the vehicle crossing always can be measured.
All of strip type sensor (A, B, C, D) here is all set perpendicular to travel direction, wherein, the first strip-type sensor Device (A, D) is mutually also longitudinally inclined with the fixation more than maximum wheel contact length along the travel direction (L) of sensor assembly (1) Move (LAD) to be set at each interval, and form the first rut group (I).According to type of vehicle, wheel contact length can reach About 20cm.
Second strip type sensor (B, C) along sensor assembly (1) travel direction (L) mutually to contact more than maximum wheel The vertical misalignment (LBC) of the fixation of length is set at each interval, and forms the second rut group (II).First rut group (I) Strip type sensor (A, D) on horizontal (Q) of travel direction the strip type sensor (B, C) with respect to the second rut group (II) wrong It is set, so that each rut group (I, II) is covered each by a rut of described runway to position.According to the present invention, each rut group First strip type sensor (A, B) of (I, II) has the side-play amount between 1cm and 15cm each other along travel direction (L) (LAB)；And second strip type sensor (C, D) of each rut group (I, II) also have each other between 1cm along travel direction (L) and Side-play amount (LCD) between 15cm.Additionally, the block length (LABCD) along travel direction of described sensor assembly 1 is less than 80cm.
In this way, this array (this device) on the one hand guarantees signal not due to the length offset of single strip type sensor May occur simultaneously.On the other hand, because whole block length is 80 cm to the maximum, it is than the wheelbase of common two-wheel rut vehicle (Radstand) short, so before the second axle travels on sensor assembly, first axle has fully crossed this sensor Module.Because all of sensor all has skew (dislocation) each other in the vertical, thus the spacing in known strip type sensor In the case of, the signal that obtained by time delay (zeitversetzt, the time staggers), the speed of axle is determined with higher precision Degree.Detect four time signals because each axle passes through at least four strip type sensor, it is possible to obtaining six kinds of possible groups Close and to determine travel speed.Even if for example cause not all of measurement all successfully to be entered due to the driving mode loitering OK, two in four measurements but are only needed can to use, thus remaining able to determine speed and thereby determining that load.
Brief description
Embodiment to possible sensor assembly and thus corresponding measurement apparatus and measurement side below in conjunction with the accompanying drawings Method illustrates.
Fig. 1 a shows the schematic plan of the first sensor module in embedded runway；Simultaneously
Fig. 1 b shows the schematic plan of the sensor assembly that have modified in embedded runway.
Fig. 2 shows the schematic plan of sensor assembly as shown in Figure 1 b, and wherein, sensor array is tied with framework Structure illustrates.
Fig. 3 shows that vehicle crosses the perspective schematic view of the sensor array with frame structure as shown in Figure 2, its In be optionally provided with two frame structures.
Fig. 4 show in a schematic the sensing with multiple strip type sensor in WIM system well known in the prior art Device array.
Specific embodiment
WIM system (dynamic weighing) described herein includes sensor assembly 1, and it is embedded in the driving surface of road In 2, and can cross for vehicle 3.The arrow of the travel direction here hatching solid of vehicle 3 represents.This vehicle has One rut 33 and the second spaced rut 34.Vehicle 3 is along travel direction first with first axle 31 and subsequently with second Axle 32 crosses sensor assembly 1.Here, each axle 31,32 is respectively provided with two wheels 30, these wheels are according to the class of vehicle 3 Type has different wheel contact surfaces.According to the type institute to different vehicles 3, different load, tire pressure and wheel 30 The series of tests done is learnt：Wheel contact length 300 is 20cm to the maximum.
Sensor assembly 1 extends along travel direction L and the horizontal Q of module, and have multiple piezoelectric type strip type sensor A, B, C, D, all of which is all set perpendicular to travel direction.This four strip type sensor A, B, C, D are for example arranged to：In driving In mounted sensor assembly 1 in road surface, sensor is flatly installed with several millimeters deep, and sensor assembly 1 is Wheel of vehicle provides contact surface as flat as possible.These strip type sensor have sensor surface S, S '.When hereinafter carrying During to sensor surface S, the relative shift of S ', it refers to shifting in travel direction L or the horizontal Q of module for the sensor surface center Position.
First strip type sensor A of the first rut group I and the second strip type sensor D are along travel direction L with vertical misalignment LAD Can not dividually () it is fixed to one another setting.This vertical misalignment LAD is more than or equal to occurred maximum wheel contact Length 300, and thus it is more than or equal to 20cm, thus can pass in the first strip type sensor A and the second stripe shape when crossing Two measurement signals being separated in time are detected on sensor D.
The first strip type sensor B on the horizontal Q along travel direction of strip type sensor A, D of the first rut group I and Second strip type sensor C can not dividually be interfixed with fixing vertical misalignment LBC relative to one another in travel direction L and set Put.Here, this vertical misalignment LBC also must be at 20cm or is more than 20cm, the thus strip type sensor of the second rut group II B, C provide two measurement signals being separated from each other in time.Strip type sensor A, B of each rut group I, II, C, D are in the horizontal Always fixed without overlapping each other, thus can be recorded the survey reproducing (reproducible) of each strip type sensor with interference-free Amount curve.
The relative localization of the strip type sensor of the first rut group I and the second rut group II is designed to：In travel direction L On, spacing LCD between spacing LAB between the first strip type sensor A, B of different rut groups and the second strip type sensor C, D More than 1cm and less than 15cm, preferably greater than 1cm is simultaneously less than 8cm.Strip type sensor A, B, C, D spacing in travel direction L is divided Do not measured by the center of strip type sensor and determine.The strip type sensor of the first rut group I and the second rut group II should This is located in parallel to one another.
The sensor assembly 1 illustrating in fig 1 a shows a kind of sensor array, wherein, two rut groups I, II vertical It is identical to skew LAD and LBC.If select this sensor array it is necessary to ensure that the second rut group II first sensing The sensor surface S ' of device B will not be handed over the sensor surface S of second sensor D shifting along direction Q transverse to travel direction Folded.Correspondingly, spacing LBD must be chosen to more than 1cm.When vehicle 3 crosses sensor assembly 1 along travel direction L, according to The measurement signal of the journal sensor of A, B, D, C.In order that the first strip type sensor B of the second rut group II is in traveling side Not overlapping with the second strip type sensor D of the first rut group I on L, between the sensor of the first rut group I vertical misalignment LAD have to be larger than spacing LAB between the first strip type sensor A, B.
Preferably, the first sensor B of the first sensor A of the first rut group I and the second rut group II is in travel direction Horizontal Q on abut each other (auf Stoss) be set.This is equally applicable to second sensor C and D.
Show another kind of sensor assembly 1 in Figure 1b, wherein, the vertical misalignment LAD of the first rut group I is more than second The vertical misalignment LBC of rut group II.The sensor so defining relative spacing each other needs in analysis measurement signal Correspondingly it is considered.When vehicle 3 crosses sensor assembly 1 along travel direction L, according to the journal sensor of A, B, C, D Measurement signal.
Cross process and measurement
According to defined spacing LAB, LCD and LBD and vertical misalignment LAD and LBC it may be determined that being recorded with analysis Measurement signal six time differences.Here, always measurement level (usually voltage signal), it can be at any time when vehicle crosses Between change.In order to determine time difference Δ t, need by respective maximum level value and determined by the corresponding time mutually close Connection.
Each strip type sensor A, B of each rut group I, II, C, D cross with being staggered in time, so that each wheel 30 At least two strip type sensor A, B, C, D always can be crossed, thus can record experiment curv.Because multiple strip type sensor exist Setting is shifted on travel direction L, can after axle crosses by measurement signal determine reach 6 time difference (Δ tAB, Δ tAC, ΔtAD、ΔtBC、ΔtBD、ΔtCD).The measurement level according to these time differences and being recorded and known strip type sensor Spacing and side-play amount, can repeatedly determine axle speed and correspondingly repeatedly determine axle weight.Thus, it is possible to determining and crossing vehicle 3 The speed more preferable description (Aussagen) relevant with quality.
If occurring in vehicle one of which strip type sensor under the travel situations of " loitering " pausing, still protect Leave enough measured values, to guarantee to determine speed and and then determine axle weight.
Certainly, herein it is important that：Strip type sensor can not be placed too far from each other, because being placed too far from leading Cause tachometric survey inaccurate.They must at least certain distance away from each other, so as to guaranteeing that same wheel will not position simultaneously In two strip type sensor A and D or two strip type sensor B and C.But, longer apart from LAD or LBC, tachometric survey will More inaccurate.Therefore, in the strip type sensor array according to the present invention, all biographies along travel direction measurement are intactly included The total length of block length LABCD of sensor A, B, C, D is less than 80cm.Also ensured that by compact arrangement, in module Strip type sensor can compactly be manufactured and be installed.
Herein it is also important that：All of strip type sensor A, B, C and D are laterally to be set, that is, It is set perpendicular to travel direction, as shown in the figure.
Figure 2 illustrates a kind of sensor assembly 1 with frame structure 10, this frame structure 10 makes strip type sensor A, B, C, D keep each other as described above defined in fixing spacing and side-play amount.For this reason, the first rut group I and the second wheel Strip type sensor A, B of rut group II, C, D are mounted with fixing spacing each other.
Outwards draw output lead 15 from sensor assembly 1, it can use outside, to obtain measured value or the number analyzed According to, and the packing of these measured values is conveyed.By means of the holding wire 12 of all strip type sensor A, B, C, D, can be by measurement letter Number it is transported in signal detection electronic installation 13, this signal detection electronic installation can be arranged on the inside of frame structure 10. Here, being additionally provided with analytic unit 14, the measurement signal receiving from signal detection electronic installation 13 in frame structure 10 Can be transmitted directly in this analytic unit.Signal detection electronic installation 13 and analytic unit 14 are arranged on frame structure 10 Inside be very favorable because sensor signal can directly be exaggerated at the scene, detected and be processed further.Can Signal detection electronic installation 13 only can be arranged on the inside of frame structure 10, and analytic unit 14 is arranged on frame by selection of land The outside of frame structure 10.When guiding to signal detection electronic installation 13 and/or analytic unit 14 wire distance in short-term, it is permissible Reduce the crosstalk on measurement signal or other interference affects.
By collecting to using the signal that output lead 15 is drawn from sensor assembly 1, installation can be made to simplify and prevent The obscuring of stop signal line 12.
The frame structure 10 of sensor assembly 1 described herein includes the first framing component 110 and the second framing component 110 ', in its described first framing component, it is fixed with each first sensor (A, B) of the first and second rut groups (I, II), In described second framing component, it is fixed with each second sensor (C, D) of the first and second rut groups (I, II).Alternatively, Respectively the sensor (A, D) of the first rut group (I) can be fixed in the first framing component 110, and by the second rut group (II) sensor (B, C) is fixed in the second framing component 110 '.
Framing component 110,110 ' can at the scene easily by grafting, weld or be screwed together.Thus it is arranged to Detachable or non-removable connection.Most of all, strip type sensor spacing relative to each other and skew are defined and are Unmodifiable.
Alternatively, teeth portion structure 11 is set, and the whole frame structure 10 thus improving sensor assembly 1 is expert at driveway surface In fixation.
As shown in figure 3, two teeth can be arranged along travel direction L and therefore on travel direction with being longitudinally spaced apart from each other Portion's structure 11,11 ', it can make sensor assembly 1 be stably installed in runway surface.Vehicle continues on runway 2 Before rolling, if vehicle 3 crosses sensor assembly 1, it crosses the first teeth portion structure 11 first along travel direction, followed by There is the frame structure 10 of the multi-part composition of strip type sensor A, B, C, D, and cross the second teeth portion structure 11 ' afterwards.Logical Cross the design inserting teeth portion structure 11,11 ' in this driveway surface of being expert at, sensor assembly 1 can be fixedly mounted in row In driveway surface 2, and can with road coating sufficiently good in combination with install.And, the final height of sensor assembly 1 Degree (Abschlussniveau, terminal level position) is located on the height on runway surface, and forms flat surface, thus Make vehicle 3 almost can cross sensor assembly 1 by interference-free.
Select：
The sensor assembly 1 that can realize closely using described strip type sensor array, its module having Length LABCD is less than 80cm.
In order to not externally to strip type sensor supplying energy, recent people be intended to using cross energy () for WIM system supply.In this sensor assembly 1, can cross the first rut group I and The first strip type sensor to two rut groups I, II for the piezoelectric effect is utilized during the second strip type sensor C, D of the second rut group II A, B provide energy.Thus do not detect the pressure loading of the second strip type sensor C, D, but this strip type sensor is used for energy Amount supply.Be enough to determine speed if crossing the first strip type sensor A, B by vehicle 3, then not absolutely essential carry out the time The measurement further postponing.
If can not accurately determine axle weight when crossing the first strip type sensor A, B, turn on automatically second stripe shape passes Sensor C, D measure.
The wheel velocity of single rut 33,34 can also be measured, here needs detection to cross the of each rut Time between one strip type sensor A, B and the second strip type sensor C, D.Then can determine that each wheel is crossing sensing Wheel velocity during device module 1.
The size of different strip type sensor A, B, sensor surface S, the S ' of C, D and respective sensor surface width b can To be optionally selected as being identical or different from each other.These sizes will be taken into account in analysis and calculated weight Interior.
Four sensors (A, B, C, D) are had in its basic configuration according to assembly of the invention.Specifically design one In scheme, such as in another framing component 110 ' according to Fig. 2 and 3, the sensor assembly of extension can comprise multiple attached Plus other sensors, in order to improve the accuracy of result.These additional sensors are relative to the adjacent sensors in its longitudinal direction Spacing and the relatively spacing of its adjacent sensors transversely be consistent with the previous designs principle of the spacing of other sensors. The block length of the sensor assembly of this extension is extended, and its prolongation amount is correspondingly：Each pair on whole runway 2 transversely The sensor highest extending extends 40cm.
It is however recommended to, along travel direction whole block length be designed to no more than common will be measured The wheelbase of vehicle.But, when being provided with minimum interval in the vertical, can for example set gradually four identical framing components 110.
Reference numerals list
1 sensor assembly
10 frame structures
110 framing components
I the first rut group
The first sensor of A the first rut group
The second sensor of D the first rut group
Vertical misalignment between the sensor of LAD the first rut group
II the second rut group
The first sensor of B the second rut group
The second sensor of C the second rut group
Vertical misalignment between the sensor of LBC the second rut group
L travel direction
Q module is horizontal
Spacing between LAB first sensor
Spacing between LCD second sensor
LABCD block length, it intactly includes all the sensors along travel direction measurement
A, B, C and D
S, S ' sensor surface
Sensor surface width in travel direction L for the b
11 teeth portion structures
12 holding wires
13 signal detection electronic installations
14 analytic units
15 output leads
2 runways
3 vehicles
30 wheels
300 wheel contact lengths
31 first axles
32 second axles
33 first ruts
34 second ruts

Claims (18)

1. a kind of axle speed for measuring two-wheel rut vehicle and axle weight sensor assembly (1), described vehicle on runway with Two travel rut (S, S ') along travel direction (L) travel, described sensor assembly include four piezoelectric type strip type sensor (A, B, C, D),
It is characterized in that：
All of strip type sensor (A, B, C, D) is all set perpendicular to travel direction, wherein, two strip type sensor (A, D) Mutually longitudinally inclined with the fixation more than maximum wheel contact length (300) along the travel direction (L) of described sensor assembly (1) Move (LAD) to be set at each interval, and form the first rut group (I),
Two other strip type sensor (B, C) along described sensor assembly (1) travel direction (L) mutually with more than described maximum The vertical misalignment (LBC) of the fixation of wheel contact length (300) is set at each interval, and forms the second rut group (II),
Wherein, the strip type sensor (A, D) of described first rut group (I) on horizontal (Q) of travel direction with respect to described It is set, so that each rut group (I, II) is covered each by described driving to strip type sensor (B, C) dislocation of two rut groups (II) One rut in road；
Wherein, first strip type sensor (A, B) of described first rut group (I) and described second rut group (II), and described First rut group (I) and second strip type sensor (C, D) of described second rut group (II), respectively along travel direction (L) to be situated between Side-play amount (LAB or LCD) between 1cm and 15cm is set with missing one another, and the module of described sensor assembly (1) Length (LABCD) is less than 80cm,
Wherein, described sensor assembly (1) can be led to according to the spacing of described strip type sensor (A, B, C, D) and vertical misalignment Cross six time difference (Δs determining and analyzing the recorded measurement signal of four piezoelectric type strip type sensor (A, B, C, D) TAB, Δ tAC, Δ tAD, Δ tBC, Δ tBD, Δ tCD) measuring axle speed and the axle weight of two-wheel rut vehicle.
2. sensor assembly (1) as claimed in claim 1, wherein, described vertical misalignment (LAD, LBC) is more than 20cm.
3. sensor assembly (1) as claimed in claim 1, wherein, the strip type sensor of described first rut group (I) with respect to The strip type sensor of described second rut group (II) is arranged to so that all strip type sensor (A, B, C, D) are in travel direction (L) and module laterally (Q) is upper all without overlapping, be set apart from each other.
4. sensor assembly (1) as claimed in claim 1, wherein, described first rut group (I) and described second rut group (II) the first strip type sensor (A, B), and the second stripe shape of described first rut group (I) and described second rut group (II) Sensor (C, D), respectively along travel direction (L) with more than 1cm and less than 8cm side-play amount (LAB or LCD) miss one another quilt Setting.
5. the sensor assembly as any one of aforementioned claim 1-4 (1), wherein, described first rut group (I) vertical It is more than the vertical misalignment (LBC) of described second rut group (II) to skew (LAD).
6. sensor assembly according to any one of claims 1 to 4 (1), wherein, the longitudinal direction of described first rut group (I) Skew (LAD) is equal to the vertical misalignment (LBC) of described second rut group (II).
7. sensor assembly according to any one of claims 1 to 4 (1), wherein, described sensor assembly (1) is by framework Structure (10) forms, in described frame structure, the strip-type sensor of described first rut group (I) and described second rut group (II) Device (A, B, C, D) is mounted with the spacing being fixed relative to each other.
8. sensor assembly (1) as claimed in claim 7, wherein, described frame structure (10) is by least two framing components (110,110 ') constitute, described framing component is dividually fixed the strip type sensor (A, D) or second of the first rut group (I) The strip type sensor (B, C) of rut group (I, II), or in described framing component dividually fix each strip type sensor (A, B, C, D).
9. sensor assembly (1) as claimed in claim 7, wherein, is fixed with signal detection in described frame structure (10) Electronic installation (13) and/or analytic unit (14).
10. sensor assembly (1) as claimed in claim 7, wherein, leads to output lead from described frame structure (10) (15), the measurement signal packing of all the sensors (A, B, C, D) is conveyed by described output lead.
11. sensor assemblies (1) as claimed in claim 7, wherein, in described frame structure (10) along travel direction (L) At least one surface before or after be fixed with teeth portion structure (11,11 ').
12. sensor assemblies (1) as claimed in claim 11, wherein, described teeth portion structure (11,11 ') is arranged on runway On the height on surface.
13. sensor assemblies (1) as any one of claim 1-4, wherein, the first of described first rut group (I) First strip type sensor (B) of strip type sensor (A) and described second rut group (II) on horizontal (Q) of travel direction each other Ground connection is set.
14. sensor assemblies (1) as any one of claim 1-4, wherein, it is accurate to be provided for improving result Multiple additional sensors of property.
15. a kind of for vehicle runway is up sail when dynamic weight measurement method, wherein, using according to aforementioned right Sensor assembly (1) any one of requirement, described sensor assembly is arranged in runway,
It is characterized in that having following steps：
A) record the measurement letter of the sensor assembly in described strip type sensor (A, B, C, D) with mutually staggering in time Number, to obtain the measurement signal of decoupling, and subsequently
B) in motion, use time scattered measurement signal curve each rut group (I, II) at least each one integration, And between six strip type sensor are to (AB, AC, AD, BC, BD, CD) determine car speed at least one of feelings Under condition, calculate the axle weight of vehicle.
16. methods as claimed in claim 15, wherein, described measurement signal alternately passes through described first rut group (I) The strip type sensor (B, C) of strip type sensor (A, D) and described second rut group (II) is detected.
17. methods as claimed in claim 15, wherein, described measurement signal is by first of described first rut group (I) Type sensor (A), by first strip type sensor (B) of described second rut group (II), by described second rut group (II) The second strip type sensor (C), and finally by described first rut group (I) the second strip type sensor (D) be detected.
18. methods as claimed in claim 15, wherein, the described measurement signal of described second strip type sensor (C, D) is Just it is detected when axle weight can not correctly be determined according to the measurement signal of described first strip type sensor (A, B).
CN201380025189.3A 2012-05-16 2013-05-15 The sensor assembly of WIM system and measuring method Active CN104303027B (en)

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Application Number Priority Date Filing Date Title
CH00697/12A CH706539A1 (en) 2012-05-16 2012-05-16 Sensor module of a WIM system and methods of measurement.
CH697/12 2012-05-16
PCT/CH2013/000083 WO2013170394A1 (en) 2012-05-16 2013-05-15 Sensor module of a wim system and measurement method

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CN104303027A CN104303027A (en) 2015-01-21
CN104303027B true CN104303027B (en) 2017-03-08

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