WO2009109158A1 - System und verfahren zur kalibrierung von sensoren dynamischer rad- oder achslasterfassungsmesssysteme von strassenfahrzeugen - Google Patents
System und verfahren zur kalibrierung von sensoren dynamischer rad- oder achslasterfassungsmesssysteme von strassenfahrzeugen Download PDFInfo
- Publication number
- WO2009109158A1 WO2009109158A1 PCT/DE2008/000442 DE2008000442W WO2009109158A1 WO 2009109158 A1 WO2009109158 A1 WO 2009109158A1 DE 2008000442 W DE2008000442 W DE 2008000442W WO 2009109158 A1 WO2009109158 A1 WO 2009109158A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- calibration
- wheel
- evaluation unit
- sensor
- Prior art date
Links
Classifications
-
- 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
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
- G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
Definitions
- the invention relates to a system and a method for calibrating sensors of dynamic wheel or Achslaster initiatedsmesssystemen of road vehicles.
- Dynamic wheel or axle load sensing systems for road vehicles have recently been used in the public transport network to detect over-loaded road vehicles, to allow weight-based toll collection, to be used in road research and in conjunction with mobile management systems.
- dynamic wheel or axle load measuring systems are also used in public transport. They are known inter alia by the term WIM, ie "Weigh in Motion ⁇ > .
- sensors are embedded in a roadway of a road, so that they can be run over by individual wheels or multiple wheels of an axle.
- the sensors deliver measurement signals that are proportional to the respective wheel or axle load.
- Sensors suitable for this purpose are commercially available from Kistler under the trade name Lineas. These are quartz-based sensors whose measurement signals can be fed to an electronic evaluation unit via a signal amplifier, preferably a charge amplifier.
- a calibration of the sensors to determine a calibration factor is mandatory and subsequent recalibration is required at more or less long intervals.
- calibration vehicles are used whose wheel or axle loads have been individually determined in advance each static. With such pre-weighed calibration vehicles then a comparison with the measurement signals of sensors can be carried out and then they are calibrated accordingly.
- the object is achieved with a system that has the features of claim 1. It can proceed with a method with the features of claim 6.
- At least one sensor which can be run over by at least one wheel of an axle of a road vehicle, is embedded in a roadway.
- a sensor can also be formed by a plurality of individual sensors electrically interconnected in a suitable manner.
- several such sensors are used in such measuring systems, so that at least two, but preferably four such sensors are embedded in a roadway in a known per se arrangement to each other.
- the sensors are aligned perpendicular to the direction of travel embedded in the road.
- two sensors are arranged along an axis with which the one or more wheels on one side of the vehicle and with the corresponding other sensor, the other or the other wheels of this axle of this vehicle can be measured.
- Two further sensors can be arranged in the same arrangement at a distance from each other seen in the direction of travel, so that each wheel passes over a sensor twice.
- the at least one sensor is then connected to a charge amplifier in order to provide suitable measurement signals for electronic evaluation in a manner known per se.
- the evaluation of the detected measurement signals can then take place in an electronic evaluation unit, which can be installed directly on site, but can also be present at a central location. In the latter case can then the acquired measurement signals are transmitted wirelessly from the installation site to a centrally installed electronic evaluation unit.
- an antenna is additionally installed on site, can be received with the identification signals.
- the identification signals are transmitted to the antenna by a transmission module, which can also be referred to as an RFID transponder.
- a transmission module is attached to each calibration vehicle.
- such a calibration vehicle has been weighed, so that the respective wheel or axle loads of the calibration vehicle are known. Since the respective wheel or axle load is detected by the at least one sensor and the respective identification signal is detected in a timely manner, preferably at the same time, these signals can be assigned to one another without further ado.
- the calibration of the respective sensor that is to say the determination of a calibration factor in a manner known per se, can be carried out with the aid of the previously statically determined wheel or axle loads, the measurement signals determined when passing over sensors and the identification signal for the respective calibration vehicle and an incorrect assignment be avoided.
- An antenna which can be used according to the invention can be designed, for example, in the form of an induction loop, which has then been embedded in the road surface. If necessary, an identification signal received by an antenna can be decoded and then, as well as the measurement signals detected with sensors, transmitted to the electronic evaluation unit, wherein the assignment of the measurement signals to the identification signal is taken into account.
- the previously mentioned wheel or axle loads of calibration vehicles determined in advance by static measurement, can be transmitted to the electronic evaluation unit by manual input or also in another suitable electronic way immediately after the determination, wherein the assignment of this information to the identification signal must be taken into account.
- data can also be temporarily stored at the location of an installed wheel or axle load measuring system and then the data memory can be brought to a central electronic evaluation unit, where the calculations required for the calibration can be carried out.
- induction loops arranged at a distance from one another are present on a wheel or axle load measuring system.
- these induction loops once the speed can be determined when driving over road vehicles.
- they are often used for pattern recognition of various road vehicles or road vehicle types.
- additional specific data of the respective calibration vehicle these can then also be used for an improvement or a supplement to the pattern recognition.
- Figure 1 in schematic form the structure of an example of a system according to the invention.
- an antenna 3 In the pavement of a roadway 10 in this example, an antenna 3, two induction loops 5 and here embedded four sensors 4. With the sensors 4, the wheel loads of the individual wheels of a road vehicle when driving over can be determined. For the determination of the driving speed and a pattern recognition, the induction loops 5 are provided.
- the antenna 3 In the direction of travel in front of the sensors 4, the antenna 3 is arranged, can be received with the signals of a mounted on a calibration 1 transmitter module 2 for the identification of the respective Kalibrierhuss 1.
- the signals of the sensors 4 are transmitted to the electronic evaluation unit 9 via a signal amplifier 7, which is designed here as a charge amplifier. There, the signals of the induction loops 5 and also received from the antenna 3 identification and possibly other signals are transmitted.
- the signals of the induction loops 5 are guided in front of the electronic evaluation unit 9 via an induction loop classifier and the signals received by the antenna 3 via an RFID decoder 8.
- the calibration can then be carried out by determining calibration factors using the known data of the respective axle or wheel loads of a calibration vehicle 1 that can be assigned by the identification signals.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2008/000442 WO2009109158A1 (de) | 2008-03-05 | 2008-03-05 | System und verfahren zur kalibrierung von sensoren dynamischer rad- oder achslasterfassungsmesssysteme von strassenfahrzeugen |
DE112008003752T DE112008003752A5 (de) | 2008-03-05 | 2008-03-05 | System und Verfahren zur Kalibrierung von Sensoren dynamischer Rad- oder Achslasterfassungsmesssysteme von Straßenfahrzeugen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2008/000442 WO2009109158A1 (de) | 2008-03-05 | 2008-03-05 | System und verfahren zur kalibrierung von sensoren dynamischer rad- oder achslasterfassungsmesssysteme von strassenfahrzeugen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009109158A1 true WO2009109158A1 (de) | 2009-09-11 |
Family
ID=39930686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2008/000442 WO2009109158A1 (de) | 2008-03-05 | 2008-03-05 | System und verfahren zur kalibrierung von sensoren dynamischer rad- oder achslasterfassungsmesssysteme von strassenfahrzeugen |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112008003752A5 (de) |
WO (1) | WO2009109158A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011101716U1 (de) | 2011-06-08 | 2011-09-12 | Traffic Data Systems Gmbh | Sensoranordnung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
WO2011120176A1 (de) | 2010-04-01 | 2011-10-06 | Kistler Holding Ag | Verfahren zum kalibrieren von wim-sensoren |
CN102519570A (zh) * | 2011-12-20 | 2012-06-27 | 四川兴达明科机电工程有限公司 | 一种识别车辆通过车道位置区域的*** |
CN102538927A (zh) * | 2011-12-20 | 2012-07-04 | 四川兴达明科机电工程有限公司 | 一种车辆称重*** |
CN102542802A (zh) * | 2011-12-23 | 2012-07-04 | 哈尔滨工业大学 | 公路交通载荷信息实时远程监测*** |
DE202014002729U1 (de) | 2014-03-24 | 2014-04-08 | Traffic Data Systems Gmbh | Einrichtung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
WO2015197668A1 (de) * | 2014-06-24 | 2015-12-30 | Batsch Waagen & Edv Gmbh & Co Kg | Verfahren und vorrichtung zur überprüfung des beladungsgewichtes eines lkw |
WO2020182376A1 (en) * | 2019-03-08 | 2020-09-17 | Kistler Holding Ag | Calibration of and site selection for a wim sensor and wim sensor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5002141A (en) * | 1989-12-08 | 1991-03-26 | Toledo Scale Corporation | Vehicle weighing in motion apparatus and method |
US5260520A (en) * | 1992-04-02 | 1993-11-09 | Martin Marietta Energy Systems, Inc. | Apparatus for weighing and identifying characteristics of a moving vehicle |
US5621195A (en) * | 1993-05-03 | 1997-04-15 | International Road Dynamics Inc. | Sensor array system for determining axle spacing |
US20060111868A1 (en) * | 2004-11-24 | 2006-05-25 | Beshears David L | System and method for indentifying, validating, weighing and characterizing moving or stationary vehicles and cargo |
-
2008
- 2008-03-05 DE DE112008003752T patent/DE112008003752A5/de not_active Withdrawn
- 2008-03-05 WO PCT/DE2008/000442 patent/WO2009109158A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5002141A (en) * | 1989-12-08 | 1991-03-26 | Toledo Scale Corporation | Vehicle weighing in motion apparatus and method |
US5260520A (en) * | 1992-04-02 | 1993-11-09 | Martin Marietta Energy Systems, Inc. | Apparatus for weighing and identifying characteristics of a moving vehicle |
US5621195A (en) * | 1993-05-03 | 1997-04-15 | International Road Dynamics Inc. | Sensor array system for determining axle spacing |
US20060111868A1 (en) * | 2004-11-24 | 2006-05-25 | Beshears David L | System and method for indentifying, validating, weighing and characterizing moving or stationary vehicles and cargo |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011120176A1 (de) | 2010-04-01 | 2011-10-06 | Kistler Holding Ag | Verfahren zum kalibrieren von wim-sensoren |
CH702963A1 (de) * | 2010-04-01 | 2011-10-14 | Kistler Holding Ag | Verfahren zum kalibrieren von wim-sensoren. |
US9851241B2 (en) | 2010-04-01 | 2017-12-26 | Kistler Holding Ag | Method for calibrating WIM-sensors |
EP2533223A2 (de) | 2011-06-08 | 2012-12-12 | Traffic Data Systems Gmbh | Sensoranordnung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
DE202011101716U1 (de) | 2011-06-08 | 2011-09-12 | Traffic Data Systems Gmbh | Sensoranordnung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
EP2533223A3 (de) * | 2011-06-08 | 2013-12-25 | Traffic Data Systems Gmbh | Sensoranordnung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
CN102519570A (zh) * | 2011-12-20 | 2012-06-27 | 四川兴达明科机电工程有限公司 | 一种识别车辆通过车道位置区域的*** |
CN102538927A (zh) * | 2011-12-20 | 2012-07-04 | 四川兴达明科机电工程有限公司 | 一种车辆称重*** |
CN102542802A (zh) * | 2011-12-23 | 2012-07-04 | 哈尔滨工业大学 | 公路交通载荷信息实时远程监测*** |
DE202014002729U1 (de) | 2014-03-24 | 2014-04-08 | Traffic Data Systems Gmbh | Einrichtung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
EP2924400A1 (de) | 2014-03-24 | 2015-09-30 | Traffic Data Systems Gmbh | Einrichtung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr |
WO2015197668A1 (de) * | 2014-06-24 | 2015-12-30 | Batsch Waagen & Edv Gmbh & Co Kg | Verfahren und vorrichtung zur überprüfung des beladungsgewichtes eines lkw |
WO2020182376A1 (en) * | 2019-03-08 | 2020-09-17 | Kistler Holding Ag | Calibration of and site selection for a wim sensor and wim sensor |
CN113544474A (zh) * | 2019-03-08 | 2021-10-22 | 基斯特勒控股公司 | Wim传感器的校准和位置选择以及wim传感器 |
CN113544474B (zh) * | 2019-03-08 | 2024-02-02 | 基斯特勒控股公司 | Wim传感器的校准和位置选择以及wim传感器 |
Also Published As
Publication number | Publication date |
---|---|
DE112008003752A5 (de) | 2010-12-02 |
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