MA50051B1 - High-speed in-motion weighing system intended for measuring the static axle load and the overall weight of road transport vehicles. - Google Patents
High-speed in-motion weighing system intended for measuring the static axle load and the overall weight of road transport vehicles.Info
- Publication number
- MA50051B1 MA50051B1 MA50051A MA50051A MA50051B1 MA 50051 B1 MA50051 B1 MA 50051B1 MA 50051 A MA50051 A MA 50051A MA 50051 A MA50051 A MA 50051A MA 50051 B1 MA50051 B1 MA 50051B1
- Authority
- MA
- Morocco
- Prior art keywords
- axle
- sensors
- analog signal
- load
- signal
- 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
Abstract
L’invention concerne un système de pesage dynamique en marche à haute vitesse pouvant mesurer, dans les conditions normales de circulation, la charge statique des essieux ainsi que le poids global de véhicules de transport routier. Ce système est constitué d’une grille de capteurs piézoélectriques, d’un nombre minimal de dix capteurs, enfouis transversalement dans la voie de circulation de la route dont la distance entre capteurs est non-uniforme définie suivant la formule (3). Cette grille de capteurs piézoélectriques permet de reconstruire le signal analogique de la charge de l’essieu du véhicule sur la base des tensions générées par les capteurs dont les valeurs sont proportionnelles aux forces instantanées appliquées par les roues de l’essieu du véhicule sur la surface de la chaussée. Ce signal analogique comprend une composante continue (charge statique de l’essieu) et une composante variable (charges dynamiques générées par l’interaction roue-chaussée). La grille de capteurs est couplée d’un filtre analogique comprenant deux cartes électroniques. La première carte relative au conditionnement du signal produit par le capteur piézoélectrique qui procède au traitement du signal émanant des capteurs, caractérisé par son rapport signal à bruit trop faible, et ce afin d’augmenter sa lisibilité et son exploitabilité. La deuxième carte électronique dédiée au traitement du signal analogique et de mesure de la charge statique de l’essieu du véhicule permet d’enlever, à l’aide d’un filtre passe haut, la composante continue du signal analogique reconstruit de la charge statique de l’essieu et ensuite de définir les points du signal filtré dont la composante variable est nulle. A ces points, la valeur de la tension mesurée sur le signal analogique reconstruit de l’essieu n’est que la tension de la charge statique de l’essieu. En introduisant le coefficient de calibrage, la valeur de la tension mesurée relative à la charge de l’essieu est transformée à une valeur en unité de poids.The invention relates to a high-speed in-motion weighing system capable of measuring, under normal traffic conditions, the static load of the axles as well as the overall weight of road transport vehicles. This system consists of a grid of piezoelectric sensors, a minimum number of ten sensors, buried transversely in the traffic lane of the road whose distance between sensors is non-uniform defined according to formula (3). This array of piezoelectric sensors makes it possible to reconstruct the analog signal of the vehicle axle load on the basis of the voltages generated by the sensors whose values are proportional to the instantaneous forces applied by the wheels of the vehicle axle on the surface. of the pavement. This analog signal includes a continuous component (static axle load) and a variable component (dynamic loads generated by wheel-road interaction). The sensor grid is coupled with an analog filter comprising two electronic boards. The first map relating to the conditioning of the signal produced by the piezoelectric sensor which proceeds to the processing of the signal emanating from the sensors, characterized by its too low signal-to-noise ratio, in order to increase its readability and its usability. The second electronic card dedicated to the processing of the analog signal and measurement of the static load of the axle of the vehicle makes it possible to remove, using a high pass filter, the continuous component of the analog signal reconstructed from the static load of the axle and then to define the points of the filtered signal whose variable component is zero. At these points, the voltage value measured on the reconstructed analog signal of the axle is only the voltage of the static load of the axle. By entering the calibration coefficient, the measured voltage value relative to the axle load is transformed into a value in weight unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA50051A MA50051B1 (en) | 2020-06-12 | 2020-06-12 | High-speed in-motion weighing system intended for measuring the static axle load and the overall weight of road transport vehicles. |
| PCT/MA2021/000009 WO2021251809A1 (en) | 2020-06-12 | 2021-06-11 | Dynamic weighing system operating at high speed designed to measure the static load of the axles and the overall weight of a road transportation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA50051A MA50051B1 (en) | 2020-06-12 | 2020-06-12 | High-speed in-motion weighing system intended for measuring the static axle load and the overall weight of road transport vehicles. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MA50051A1 MA50051A1 (en) | 2021-12-31 |
| MA50051B1 true MA50051B1 (en) | 2022-03-31 |
Family
ID=76943065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MA50051A MA50051B1 (en) | 2020-06-12 | 2020-06-12 | High-speed in-motion weighing system intended for measuring the static axle load and the overall weight of road transport vehicles. |
Country Status (2)
| Country | Link |
|---|---|
| MA (1) | MA50051B1 (en) |
| WO (1) | WO2021251809A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI811931B (en) * | 2021-12-29 | 2023-08-11 | 宏碁股份有限公司 | Detection device and detection method for light emitting element |
| CN114919593B (en) * | 2022-07-23 | 2022-10-14 | 天津所托瑞安汽车科技有限公司 | Vehicle load estimation method, apparatus and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH689599A5 (en) * | 1993-11-23 | 1999-06-30 | Kk Holding Ag | Transducer arrangement for installation in carriageways for the purpose of detecting the weights and / or the driving dynamic reactions of vehicle wheels. |
| EP0997713A1 (en) * | 1998-10-29 | 2000-05-03 | K.K. Holding AG | Traffic monitoring systems |
| FR2978563B1 (en) * | 2011-07-29 | 2014-03-21 | Yzatec | SENSOR FOR PASSING ROAD VEHICLES WITH INDEPENDENT JUXTAPOSES PIEZOELECTRIC SENSORS |
-
2020
- 2020-06-12 MA MA50051A patent/MA50051B1/en unknown
-
2021
- 2021-06-11 WO PCT/MA2021/000009 patent/WO2021251809A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021251809A4 (en) | 2022-01-13 |
| WO2021251809A1 (en) | 2021-12-16 |
| MA50051A1 (en) | 2021-12-31 |
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