EP0404623A1 - Device for repairing road surfaces, in particular for equipping tipper trucks for spreading binder and aggregate - Google Patents

Device for repairing road surfaces, in particular for equipping tipper trucks for spreading binder and aggregate Download PDF

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Publication number
EP0404623A1
EP0404623A1 EP90401505A EP90401505A EP0404623A1 EP 0404623 A1 EP0404623 A1 EP 0404623A1 EP 90401505 A EP90401505 A EP 90401505A EP 90401505 A EP90401505 A EP 90401505A EP 0404623 A1 EP0404623 A1 EP 0404623A1
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EP
European Patent Office
Prior art keywords
spreading
vehicle
gravel
binder
installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90401505A
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German (de)
French (fr)
Inventor
Pierre Wendling
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RINCHEVAL DITE Ste
Original Assignee
RINCHEVAL DITE Ste
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Publication date
Application filed by RINCHEVAL DITE Ste filed Critical RINCHEVAL DITE Ste
Publication of EP0404623A1 publication Critical patent/EP0404623A1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/21—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means
    • E01C2019/2095—Feeding the distribution means by tipping

Definitions

  • the present invention relates to an installation for repairing road surfaces, in particular intended to equip a dump truck for the simultaneous spreading of a binder and gravel at the places to be repaired, installation comprising: means for spreading the binder with a binder reservoir and a spreading boom selectively or globally controlled, - means for spreading the gravel formed by a gravel spreader supplied with gravel from a grab by means of hatches selectively or globally controlled.
  • the vehicle is circulated in reverse and the operator guides the vehicle from the platform; it monitors the road behind the vehicle and, depending on the transverse bands to be repaired, it controls the opening of the binder nozzles and the corresponding gravel hatches to spray the binder and then cover it with gravel.
  • the vehicle carrying out such repair work is a vehicle specially designed with a double cockpit, reference control, etc. at the rear of the vehicle. (During these operations, the operator is exposed directly to the vapors released from the binder at the time of spreading).
  • the present invention aims to remedy the drawbacks of the known solution and proposes to create an installation for repairing road surfaces, which can be controlled by a single person in a driving position, safely and comfortably, without be exposed to the harmful vapors released by the binder at the time of spreading and ensuring rational and efficient repair of the road surface.
  • the invention also proposes to provide equipment adaptable to all dump trucks and not immobilizing a chassis with a bucket, during periods of non-use of repair equipment road, such as in the fall and during the winter period.
  • the present invention relates to an installation of the above type, characterized in that it comprises: - a video camera targeting the road upstream of the spreading truck, - a touch video screen displaying the image of the video camera, and comprising touch control zones, - first and second displacement sensors located on either side of the vehicle and providing displacement signals, - a central processing unit connected to the touch screen and to the two sensors for receiving the instructions introduced by the touch screen and the displacement (speed) signals supplied by the first and the second sensors, this central unit being connected at output to the displacement control means and to the spreading control means, the central unit controlling the vehicle drive means, the width and the position of the spreading according to the instructions introduced by the touch screen and the offset correction calculated from the movement of the vehicle provided by at least one displacement sensor, this movement being in particular a difference in speeds.
  • the installation according to the invention which can very easily equip an existing dump truck, allows this dump truck to be used only during a repair campaign, this truck being the rest of the time available for others work, such as in winter, sandblasting work.
  • the vehicle can be driven and controlled by the only driver who, by observing the video screen within sight and hand, for example on the dashboard of the vehicle, can, while keeping an eye on the road, watch the video screen and control the implementation of the spreading means from the information that appears on the video screen .
  • this touch screen video screen is divided into zones, to implement or stop spreading in part of the spreading means corresponding to a zone displayed on the screen, it suffices for the driver to touch the command associated with this zoned.
  • the vehicle runs under normal conditions, at a reduced speed, but in the normal direction of travel. The driver is not only more comfortable in guiding his vehicle with better precision but he is also in comfort and safety in the cabin, while being protected against the harmful vapors released by the binder at the time of spreading.
  • the installation for the repair of road surfaces is intended to equip a dump truck 1 which ensures the simultaneous spreading of a binder using a spreading ramp 2 and gravel at the using a gravel spreader 3, at the places to be repaired.
  • the means for spreading the binder 2 comprises, in addition to its ramp, a reservoir 4 which contains the binder and according to the spreading systems is pressurized from a source of compressed air driven by the engine of the truck.
  • the spreading ramp 2 is formed by a set of nozzles not shown in detail, nozzles which are controlled by solenoid valves to be implemented or to stop selectively either globally depending on the work to be performed.
  • the gravel spreader 3 is made up of a set of lateral hatches which open the bottom of the bucket and feed a distributing distributor roller driven in rotation and which forms a sheet of gravel spreading over the binder.
  • the gravel trap doors are selectively controlled in combination with the control of the spreading boom nozzles.
  • the installation consists of a video camera 5 fixed to the front of the truck 1 and targeting the roadway upstream of the truck at a fixed angle and orientation.
  • This installation also includes a video screen 6 connected to the camera as well as a central processing unit 7 connected to the video screen 6.
  • the video screen 6 is a touch screen which makes it possible to inject into the central processing unit 7 the various ordering information.
  • the installation comprises means for detecting the movement of the vehicle and having first and second displacement sensors 81, 82, associated respectively with the left side and the right side of the vehicle.
  • the sensors 81, 82 are connected to the central processing unit and supply it with displacement signals, that is to say speed signals to allow the central processing unit to calculate the average speed of movement of the vehicle as well as the speed difference between the left and right wheels of the vehicle to check that the vehicle is moving in a straight line or following a curve to the right or left and take this into account when controlling the spreading sectors as will be described later.
  • FIG. 2 is an overall diagram of the installation according to the invention. As already indicated, this installation consists of a camera 5, a video screen 6, a central processing unit 7, first and second displacement sensors 8 capteurs, 82 associated with the left side and on the right side of the vehicle whose non-steerable wheels or groups of wheels 91, 92 are aligned on the axis X X.
  • the screen 6 and the sensors 81, 82 are connected as indicated to the central unit 7.
  • This central unit 7 is connected to the spreading means 2 and to the gravel spreader 3. It can also be connected if necessary to the motor 9.
  • the video screen 7 or control screen is a touch screen which is the only means of controlling the processing unit.
  • This touch screen has different control zones and in particular, for example in its lower part, zones S1, S2, S3, S4, aligned transversely (the number 4 of zones is chosen arbitrarily).
  • zones S1-S4 divide the image of the pavement into four associated sectors into as many transverse sectors of spreading means 2 and graveling means 3.
  • each zone S1 ... S4 is associated transversely with a group of spreading nozzles of the spreading means 2 and one or more corresponding hatches of the gravel spreader 3.
  • the central processing unit asso ciation between zones 1 and the sectors that will be treated by the truck as shown schematically but more clearly in Figure 3.
  • the vehicle 100 moves on the straight track 101 of a roadway.
  • the pavement strip 102 is defective and must be repaired.
  • the vehicle is equipped with a camera 103, the viewing angle of which is shown schematically by the triangle 104 and especially by the row 105 of the zones S1, S2, S3, S4 which in fact appear on the video screen inside the cabin.
  • the aiming and control sector S1 is associated with the zone Z1 and so on.
  • the sighting and control sector S4 is associated with the spreading zone Z4. This means that if the vehicle 100 is traveling in a straight line, when the driver sees a strip of repair appearing on his screen appearing in his sector S2, he touches the sector S2 of his touch screen and the central processing unit 7 takes account of the speed to calculate the delay in implementing the zone Z zone of the spreading means. This means that at a time chosen after the order by the driver, the spreading means of the zone Z2 are used to supply the binder and the gravel. To stop the treatment, the driver presses again on the sector S2 of his touch screen which closes the corresponding nozzles of the binder spreader 2 and the hatch (s) of the gra hiker 3.
  • this trajectory is detected by the difference in the trajectories or speeds of the sensors 81, 82.
  • this strip appears in the sector S3 whereas if the vehicle did not move in a curve the strip would appear in the sector S4 .
  • the strip 102 cannot be treated by the zone Z3 but the zone Z4, although the driver of the vehicle has commanded with his finger, the sector S3 (and not S4).
  • This association between the sector S i and the implementation of the spreading means for the sector Z j by the driver is ensured by the central processing unit 7.
  • the sighting strip and the processing strip is subdivided into four parts (sectors S1-S4 and zones Z1-Z4).
  • the subdivision is finer and it can be a dozen sectors and zones.
  • the limit to this subdivision is the number of spreading nozzles or hatches provided in the transverse direction in the spreading means and distributed in zones. This number of trap doors or spray nozzles which can be controlled independently is associated with a corresponding number of control sectors, in the transverse direction on the touch screen available to the driver.
  • the use of the invention is particularly simple since the driver can perfectly, at the traveling speeds of the vehicle (of the order of 4 to 6 km / h) observe both the road and the faults thereof for the find almost simultaneously on the screen and thus control the implementation of the various processing sectors, the central processing unit taking into account both the implementation delay required for the processing means as a function of the speed vehicle displacement and offset in curved trajectory.
  • the installation according to the invention does not require a special vehicle, the installation can be carried on board any dump vehicle which is thus transformed into a road repair vehicle.
  • the reverse transformation is just as simple. This makes it possible not to immobilize a vehicle solely for these repair works.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)

Abstract

b) Device characterised in that it comprises: - a video camera (5) directed at the road ahead of the spreading truck, - a touch-sensitive video screen (6) displaying the image from the video camera (5) and comprising touch-sensitive command zones, - a first and a second movement sensor (81, 82) located on either side of the vehicle and supplying movement signals, - a central processing unit (7). <IMAGE>

Description

La présente invention concerne une installa­tion pour la réparation de revêtements routiers, notamment destinée à équiper un camion-benne pour l'é­pandage simultané d'un liant et de gravillons aux en­droits à réparer, installation comprenant :
- des moyens d'épandage du liant avec un réservoir de liant et une rampe d'épandage commandée sélectivement ou globalement,
- des moyens d'épandage du gravillon formés par un gravillonneur alimenté en gravillons à partir d'une benne par l'intermédiaire de trappes commandées sélec­tivement ou globalement.The present invention relates to an installation for repairing road surfaces, in particular intended to equip a dump truck for the simultaneous spreading of a binder and gravel at the places to be repaired, installation comprising:
means for spreading the binder with a binder reservoir and a spreading boom selectively or globally controlled,
- means for spreading the gravel formed by a gravel spreader supplied with gravel from a grab by means of hatches selectively or globally controlled.

Une telle installation est déjà connue.Such an installation is already known.

En effet, la réparation de revêtements rou­tiers se fait en général par bandes dont la longueur et la largeur dépendent des parties de chaussée à ré­parer.Indeed, the repair of road surfaces is generally done by strips whose length and width depend on the parts of roadway to be repaired.

Alors qu'anciennement et même actuellement ces réparations sont faites de manière très artisana­le, par les cantonniers, actuellement on utilise un camion-benne muni d'une installation d'épandage de liant et d'un gravillonneur. Ce camion-benne est équi­ pé à l'arrière, d'un second poste de conduite et de commande de l'installation d'épandage du liant et du gravillon.While in the past and even now these repairs are done in a very artisanal way, by the roadmenders, currently a dump truck is used fitted with a binder spreading installation and a gravel spreader. This dump truck is equipped pe at the rear, a second driving position and control of the spreading installation of the binder and gravel.

Ces commandes sont placées sur une platefor­me à l'arrière du véhicule.These controls are placed on a platform at the rear of the vehicle.

Pour effectuer les réparations, on fait circuler le véhicule en marche arrière et l'opérateur guide le véhicule à partir de la plateforme ; il sur­veille la route derrière le véhicule et en fonction des bandes transversales à réparer, il commande l'ou­verture des buses de liant et des trappes correspon­dantes de gravillons pour pulvériser le liant puis re­couvrir celui-ci de gravillons.To carry out the repairs, the vehicle is circulated in reverse and the operator guides the vehicle from the platform; it monitors the road behind the vehicle and, depending on the transverse bands to be repaired, it controls the opening of the binder nozzles and the corresponding gravel hatches to spray the binder and then cover it with gravel.

Cette solution présente un certain nombre d'inconvénients graves.This solution has a number of serious drawbacks.

En premier lieu, le véhicule qui effectue de tels travaux de réparation est un véhicule conçu de manière spéciale avec un double poste de pilotage, renvoi de commandes, etc... à l'arrière du véhicu­le.(au cours de ces opérations, l'opérateur est exposé directement aux vapeurs dégagées du liant au moment de son épandage).First of all, the vehicle carrying out such repair work is a vehicle specially designed with a double cockpit, reference control, etc. at the rear of the vehicle. (During these operations, the operator is exposed directly to the vapors released from the binder at the time of spreading).

La présente invention a pour but de remédier aux inconvénients de la solution connue et se propose de créer une installation pour la réparation de revê­tements routiers, qui puisse être commandée par une seule personne dans un poste de conduite, en toute sé­curité et en confort, sans être exposée aux vapeurs nocives dégagées par le liant au moment de son épanda­ge et permettant d'assurer une réparaticn rationnelle et efficace du revêtement routier.The present invention aims to remedy the drawbacks of the known solution and proposes to create an installation for repairing road surfaces, which can be controlled by a single person in a driving position, safely and comfortably, without be exposed to the harmful vapors released by the binder at the time of spreading and ensuring rational and efficient repair of the road surface.

L'invention se propose également de réaliser un équipement adaptable sur tous camions-bennes et n'immobilisant pas un châssis avec une benne, pendant les périodes de non utilisation du matériel de répara­ tion routière, comme par exemple à l'automne et pen­dant la période d'hiver.The invention also proposes to provide equipment adaptable to all dump trucks and not immobilizing a chassis with a bucket, during periods of non-use of repair equipment road, such as in the fall and during the winter period.

A cet effet, la présente invention concerne une installation du type ci-dessus caractérisée en ce qu'elle comprend :
- une caméra vidéo visant la route en amont du camion d'épandage,
- un écran vidéo tactile affichant l'image de la camé­ra vidéo, et comportant des zones de commande tactile,
- un premier et un second capteurs de déplacement si­tués de part et d'autre du véhicule et fournissant des signaux de déplacement,
- une unité centrale de traitement reliée à l'écran tactile et aux deux capteurs pour recevoir les ins­tructions introduites par l'écran tactile et les si­gnaux de déplacement (vitesse) fournis par le premier et le second capteurs,
cette unité centrale étant reliée en sortie aux moyens de commande de déplacement et aux moyens de commande d'épandage, l'unité centrale commandant le moyen d'en­traînement du véhicule, la largeur et la position de l'épandage en fonction des instructions introduites par l'écran tactile et de la correction de décalage calculée à partir du mouvement du véhicule fourni par au moins un capteur de déplacement, ce mouvement étant notamment une différence de vitesses.To this end, the present invention relates to an installation of the above type, characterized in that it comprises:
- a video camera targeting the road upstream of the spreading truck,
- a touch video screen displaying the image of the video camera, and comprising touch control zones,
- first and second displacement sensors located on either side of the vehicle and providing displacement signals,
- a central processing unit connected to the touch screen and to the two sensors for receiving the instructions introduced by the touch screen and the displacement (speed) signals supplied by the first and the second sensors,
this central unit being connected at output to the displacement control means and to the spreading control means, the central unit controlling the vehicle drive means, the width and the position of the spreading according to the instructions introduced by the touch screen and the offset correction calculated from the movement of the vehicle provided by at least one displacement sensor, this movement being in particular a difference in speeds.

L'installation, selon l'invention, qui peut équiper très facilement un camion-benne existant, per­met d'utiliser ce camion-benne seulement au moment d'une campagne de réparations, ce camion étant le res­te du temps disponible pour d'autres travaux, comme par exemple en hiver, les travaux de sablage.The installation according to the invention, which can very easily equip an existing dump truck, allows this dump truck to be used only during a repair campaign, this truck being the rest of the time available for others work, such as in winter, sandblasting work.

Grâce à l'invention, le véhicule peut être piloté et commandé par le seul conducteur qui, en observant l'écran vidéo à portée de vue et de main, par exemple sur le tableau de bord du véhicule, peut, tout en conservant un oeil sur la route, regarder l'é­cran vidéo et commander la mise en oeuvre des moyens d'épandage à partir de l'information qui apparaît sur l'écran vidéo.Thanks to the invention, the vehicle can be driven and controlled by the only driver who, by observing the video screen within sight and hand, for example on the dashboard of the vehicle, can, while keeping an eye on the road, watch the video screen and control the implementation of the spreading means from the information that appears on the video screen .

Comme cet écran vidéo tactile est divisé en zones, pour mettre en oeuvre ou arrêter l'épandage dans une partie des moyens d'épandage correspondants à une zone visualisée sur l'écran, il suffit que le con­ducteur touche du doigt la commande associée à cette zone. De plus, le véhicule circule dans les conditions normales, à vitesse certes réduite, mais dans le sens de marche normale. Le conducteur est non seulement plus à l'aise pour guider son véhicule avec une meilleure précision mais il est également en confort et en sécurité dans la cabine, tout en étant protégé contre les vapeurs nocives dégagées par le liant au moment de son épandage.As this touch screen video screen is divided into zones, to implement or stop spreading in part of the spreading means corresponding to a zone displayed on the screen, it suffices for the driver to touch the command associated with this zoned. In addition, the vehicle runs under normal conditions, at a reduced speed, but in the normal direction of travel. The driver is not only more comfortable in guiding his vehicle with better precision but he is also in comfort and safety in the cabin, while being protected against the harmful vapors released by the binder at the time of spreading.

La présente invention sera décrite de maniè­re plus détaillée à l'aide des dessins annexés dans lesquels :

  • - La figure 1 est une vue de côté d'un ca­mion d'épandage selon l'invention,
  • - La figure 2 est un schéma-bloc de l'in­stallation d'épandage selon l'invention,
  • - La figure 3 est une vue schématique d'un véhicule d'épandage selon l'invention circulant sur une trajectoire courbe.
The present invention will be described in more detail with the aid of the appended drawings in which:
  • FIG. 1 is a side view of a spreading truck according to the invention,
  • FIG. 2 is a block diagram of the spreading installation according to the invention,
  • - Figure 3 is a schematic view of a spreading vehicle according to the invention traveling on a curved path.

Selon la figure 1, l'installation pour la réparation de revêtements routiers est destinée à équiper un camion-benne 1 qui assure l'épandage simul­tané d'un liant à l'aide d'une rampe d'épandage 2 et de gravillons à l'aide d'un gravillonneur 3, aux en­droits à réparer. Le moyen d'épandage du liant 2 com­prend outre sa rampe un réservoir 4 qui contient le liant et selon les systèmes d'épandage est mis sous pression à partir d'une source d'air comprimé entraî­née par le moteur du camion. La rampe d'épandage 2 est formée par un ensemble de buses non représenté en dé­tail, buses qui sont commandées par des électrovannes pour être mises en oeuvre ou s'arrêter sélectivement soit globalement en fonction des travaux à effectuer.According to Figure 1, the installation for the repair of road surfaces is intended to equip a dump truck 1 which ensures the simultaneous spreading of a binder using a spreading ramp 2 and gravel at the using a gravel spreader 3, at the places to be repaired. The means for spreading the binder 2 comprises, in addition to its ramp, a reservoir 4 which contains the binder and according to the spreading systems is pressurized from a source of compressed air driven by the engine of the truck. The spreading ramp 2 is formed by a set of nozzles not shown in detail, nozzles which are controlled by solenoid valves to be implemented or to stop selectively either globally depending on the work to be performed.

De la même manière, le gravillonneur 3 se compose d'un ensemble de trappes latérales qui permet­tent d'ouvrir le fond de la benne et d'alimenter un rouleau distributeur répartiteur entraîné en rotation et qui forme une nappe de gravillons venant s'étaler sur le liant.In the same way, the gravel spreader 3 is made up of a set of lateral hatches which open the bottom of the bucket and feed a distributing distributor roller driven in rotation and which forms a sheet of gravel spreading over the binder.

Les trappes du gravillonneur sont commandées de manière sélective en association avec la commande des buses de la rampe d'épandage.The gravel trap doors are selectively controlled in combination with the control of the spreading boom nozzles.

Selon l'invention, l'installation se compose d'une caméra vidéo 5 fixée à l'avant du camion 1 et visant la chaussée en amont du camion suivant un angle et une orientation déterminés, fixes. Cette installa­tion comporte également un écran vidéo 6 relié à la caméra ainsi qu'une unité centrale de traitement 7 re­liée à l'écran vidéo 6. L'écran vidéo 6 est un écran tactile qui permet d'injecter dans l'unité centrale de traitement 7 les différentes informations de commande.According to the invention, the installation consists of a video camera 5 fixed to the front of the truck 1 and targeting the roadway upstream of the truck at a fixed angle and orientation. This installation also includes a video screen 6 connected to the camera as well as a central processing unit 7 connected to the video screen 6. The video screen 6 is a touch screen which makes it possible to inject into the central processing unit 7 the various ordering information.

L'installation comprend un moyen pour détec­ter le mouvement du véhicule et ayant un premier et un second capteurs de déplacement 8₁, 8₂, associés res­pectivement au côté gauche et au côté droit du véhicu­le.The installation comprises means for detecting the movement of the vehicle and having first and second displacement sensors 8₁, 8₂, associated respectively with the left side and the right side of the vehicle.

Les capteurs 8₁, 8₂ sont reliés à l'unité centrale de traitement et lui fournissent des signaux de déplacement, c'est-à-dire des signaux de vitesse pour permettre à l'unité centrale de traitement de calculer la vitesse moyenne de déplacement du véhicule ainsi que la différence de vitesse entre les roues gauche et les roues droite du véhicule pour vérifier que le véhicule se déplace en ligne droite ou suivant une courbe à droite ou à gauche et en tenir compte pour la commande des secteurs d'épandage comme cela sera décrit ultérieurement.The sensors 8₁, 8₂ are connected to the central processing unit and supply it with displacement signals, that is to say speed signals to allow the central processing unit to calculate the average speed of movement of the vehicle as well as the speed difference between the left and right wheels of the vehicle to check that the vehicle is moving in a straight line or following a curve to the right or left and take this into account when controlling the spreading sectors as will be described later.

La figure 2 est un schméma d'ensemble de l'installation selon l'invention. Comme déjà indiqué, cette installation se compose d'une caméra 5, d'un écran vidéo 6, d'une unité centrale de traitement 7, d'un premier et d'un second capteurs de déplacement 8₁, 8₂ associés au côté gauche et au côté droit du vé­hicule dont les roues ou groupes de roues 9₁, 9₂, non directrices sont alignées sur l'axe X X.FIG. 2 is an overall diagram of the installation according to the invention. As already indicated, this installation consists of a camera 5, a video screen 6, a central processing unit 7, first and second displacement sensors 8 capteurs, 8₂ associated with the left side and on the right side of the vehicle whose non-steerable wheels or groups of wheels 9₁, 9₂ are aligned on the axis X X.

L'écran 6 et les capteurs 8₁, 8₂ sont reliés comme indiqué à l'unité centrale 7.The screen 6 and the sensors 8₁, 8₂ are connected as indicated to the central unit 7.

Cette unité centrale 7 est reliée au moyen d'épandage 2 et au gravillonneur 3. Elle peut égale­ment être reliée le cas échéant au moteur 9.This central unit 7 is connected to the spreading means 2 and to the gravel spreader 3. It can also be connected if necessary to the motor 9.

L'écran vidéo 7 ou écran de contrôle est un écran tactile qui est le seul moyen de commande de l'unité de traitement. Cet écran tactile comporte dif­férentes zones de commande et en particulier, par exemple dans sa partie inférieure, des zones S₁, S₂, S₃, S₄, alignées transversalement (le nombre 4 de zones est choisi de manière arbitraire).The video screen 7 or control screen is a touch screen which is the only means of controlling the processing unit. This touch screen has different control zones and in particular, for example in its lower part, zones S₁, S₂, S₃, S₄, aligned transversely (the number 4 of zones is chosen arbitrarily).

Ces zones S₁-S₄ divisent l'image de ia chaussée en quatre secteurs associés en autant de sec­teurs transversaux de moyen d'épandage 2 et de gravil­lonnage 3.These zones S₁-S₄ divide the image of the pavement into four associated sectors into as many transverse sectors of spreading means 2 and graveling means 3.

En d'autres termes, à chaque zone S₁...S₄ est associé transversalement un groupe de buses d'é­pandage du moyen d'épandage 2 et une ou plusieurs trappes correspondantes du gravillonneur 3.In other words, each zone S₁ ... S₄ is associated transversely with a group of spreading nozzles of the spreading means 2 and one or more corresponding hatches of the gravel spreader 3.

L'unité centrale de traitement fait l'asso­ ciation entre les zones 1 et les secteurs qui seront traités par le camion comme cela apparaît de manière schématique mais plus claire à la figure 3.The central processing unit asso ciation between zones 1 and the sectors that will be treated by the truck as shown schematically but more clearly in Figure 3.

En effet, selon cette figure, le véhicule 100 se déplace sur la voie droite 101 d'une chaussée. La bande 102 de la chaussée est défectueuse et doit recevoir une réparation.Indeed, according to this figure, the vehicle 100 moves on the straight track 101 of a roadway. The pavement strip 102 is defective and must be repaired.

Le véhicule est équipé d'une caméra 103 dont l'angle de visée est schématisé par le triangle 104 et surtout par la rangée 105 des zones S₁, S₂, S₃, S₄ qui en fait apparaissent sur l'écran vidéo à l'intérieur de la cabine.The vehicle is equipped with a camera 103, the viewing angle of which is shown schematically by the triangle 104 and especially by the row 105 of the zones S₁, S₂, S₃, S₄ which in fact appear on the video screen inside the cabin.

A l'arrière du camion 100 on a les moyens d'épandage de liant et de gravillons qui sont associés entre eux et sont simplement représentés par des zones transversales Z₁, Z₂, Z₃, Z₄ associées aux secteurs S₁...S₄ de la caméra de prise de vue.At the rear of the truck 100 there are means for spreading binder and gravel which are associated with one another and are simply represented by transverse zones Z₁, Z₂, Z₃, Z₄ associated with the sectors S₁ ... S₄ of the camera. of shooting.

Lorsque le véhicule 100 se déplace en ligne droite, le secteur de visée et de commande S₁ est associé à la zone Z₁ et ainsi de suite. Le secteur de visée et de commande S₄ est associé à la zone d'épan­dage Z₄. Cela signifie que si le véhicule 100 se dé­place en ligne droite, lorsque le conducteur voit ap­paraître sur son écran une bande à réparer apparais­sant au niveau de son secteur S₂, il touche le secteur S₂ de son écran tactile et l'unité centrale de traite­ment 7 tient compte de la vitesse pour calculer le re­tard de mise en oeuvre de la zone Z₂ des moyens d'é­pandage. Cela signifie qu'à un moment choisi après la commande par le conducteur, les moyens d'épandage de la zone Z₂ sont mis en oeuvre pour fournir le liant et le gravillon. Pour arrêter le traitement, le conduc­teur appuie une nouvelle fois sur le secteur S₂ de son écran tactile ce qui ferme les buses correspondantes de l'épandeur de liant 2 et la ou les trappes du gra­ villonneur 3.When the vehicle 100 moves in a straight line, the aiming and control sector S₁ is associated with the zone Z₁ and so on. The sighting and control sector S₄ is associated with the spreading zone Z₄. This means that if the vehicle 100 is traveling in a straight line, when the driver sees a strip of repair appearing on his screen appearing in his sector S₂, he touches the sector S₂ of his touch screen and the central processing unit 7 takes account of the speed to calculate the delay in implementing the zone Z zone of the spreading means. This means that at a time chosen after the order by the driver, the spreading means of the zone Z₂ are used to supply the binder and the gravel. To stop the treatment, the driver presses again on the sector S₂ of his touch screen which closes the corresponding nozzles of the binder spreader 2 and the hatch (s) of the gra hiker 3.

Cette association entre les secteurs S₁-S₄ et les zones Z₁-Z₄ n'est vraie, comme indiqué ci-­dessus, que lorsque le véhicule se déplace en ligne droite. Par contre, lorsque le véhicule se déplace en courbe, cette relation entre le secteur Si et la zone Zi n'est plus vraie. En d'autres termes le secteur Si vu sur l'écran de contrôle 6 ne doit plus commander la mise en oeuvre des moyens d'épandage de liant et de gravillons de la zone Zi mais d'une autre zone Zj dé­calée par rapport à la zone Zi en fonction de la pa­rallaxe de visée de la caméra 5, 103 lorsque le véhi­cule parcourt une trajectoire courbe (figure 3).This association between sectors S₁-S₄ and zones Z₁-Z₄ is only true, as indicated above, when the vehicle is traveling in a straight line. On the other hand, when the vehicle is moving in a curve, this relationship between the sector S i and the zone Z i is no longer true. In other words, the sector S i seen on the control screen 6 must no longer command the implementation of the means for spreading binder and gravel from the zone Z i but from another zone Z j offset by relative to the zone Z i as a function of the parallax of sight of the camera 5, 103 when the vehicle travels a curved trajectory (FIG. 3).

La courbure de cette trajectoire est détec­tée par la différence des trajectoires ou des vitesses des capteurs 8₁, 8₂. Ainsi, à titre d'exemple, lorsque le conducteur voit sur son écran la bande à réparer 102 (figure 3), cette bande apparaît dans le secteur S₃ alors que si le véhicule ne se déplaçait pas en courbe la bande apparaîtrait dans le secteur S₄. Or, la bande 102 ne peut pas être traitée par la zone Z₃ mais la zone Z₄, bien que le conducteur du véhicule ait commandé avec son doigt, le secteur S₃ (et non S₄). Cette association entre le secteur Si et la mise en oeuvre des moyens d'épandage pour le secteur Zj par le conducteur est assurée par l'unité centrale de traitement 7.The curvature of this trajectory is detected by the difference in the trajectories or speeds of the sensors 8₁, 8₂. Thus, by way of example, when the driver sees on his screen the strip to be repaired 102 (FIG. 3), this strip appears in the sector S₃ whereas if the vehicle did not move in a curve the strip would appear in the sector S₄ . However, the strip 102 cannot be treated by the zone Z₃ but the zone Z₄, although the driver of the vehicle has commanded with his finger, the sector S₃ (and not S₄). This association between the sector S i and the implementation of the spreading means for the sector Z j by the driver is ensured by the central processing unit 7.

Lorsque le virage se fait à droite, le déca­lage des secteurs et des zones se fait en sens inver­se.When the turn is made to the right, the sectors and zones are shifted in the opposite direction.

Dans le cas schématique évoqué ci-dessus, la bande de visée et la bande de traitement est subdivi­sée en quatre parties (secteurs S₁-S₄ et zones Z₁-Z₄). Toutefois, en réalité, la subdivision est plus fine et il peut s'agir d'une dizaine de secteurs et zones. La limite à cette subdivision est le nombre de buses d'é­pandage ou de trappes prévu dans la direction trans­versale dans le moyen d'épandage et réparties en zo­nes. A ce nombre de zones à trappes ou buses de pulvé­risation que l'on peut commander indépendamment, est associé un nombre correspondant de secteurs de comman­de, dans la direction transversale sur l'écran tactile à la disposition du conducteur.In the schematic case mentioned above, the sighting strip and the processing strip is subdivided into four parts (sectors S₁-S₄ and zones Z₁-Z₄). However, in reality, the subdivision is finer and it can be a dozen sectors and zones. The limit to this subdivision is the number of spreading nozzles or hatches provided in the transverse direction in the spreading means and distributed in zones. This number of trap doors or spray nozzles which can be controlled independently is associated with a corresponding number of control sectors, in the transverse direction on the touch screen available to the driver.

L'utilisation de l'invention est particuliè­rement simple puisque le conducteur peut parfaitement, aux vitesses de déplacement du véhicule (de l'ordre de 4 à 6 km/h) observer à la fois la route et les défauts de celle-ci pour les retrouver de manière quasi simul­tanée sur l'écran et commander ainsi la mise en oeuvre des différents secteurs de traitement, l'unité centra­le de traitement tenant compte à la fois du retard de mise en oeuvre nécessaire pour les moyens de traite­ment en fonction de la vitesse de déplacement du véhi­cule et du décalage en trajectoire courbe.The use of the invention is particularly simple since the driver can perfectly, at the traveling speeds of the vehicle (of the order of 4 to 6 km / h) observe both the road and the faults thereof for the find almost simultaneously on the screen and thus control the implementation of the various processing sectors, the central processing unit taking into account both the implementation delay required for the processing means as a function of the speed vehicle displacement and offset in curved trajectory.

Le conducteur de l'engin n'est pas exposé aux vapeurs nocives puisqu'il est dans sa cabine et les conditions d'utilisation de l'installation sont beaucoup plus confortables et plus efficaces de ce fait. Enfin, l'installation selon l'invention ne né­cessitant pas de véhicule spécial, l'installation peut être embarquée à bord de n'importe quel véhicule à benne qui est transformé ainsi en un véhicule de répa­ration routière. La transformation est inverse est tout aussi simple. Cela permet de ne pas immobiliser un véhicule uniquement pour ces travaux de réparation.The operator of the machine is not exposed to harmful vapors since he is in his cabin and the conditions of use of the installation are much more comfortable and more efficient as a result. Finally, since the installation according to the invention does not require a special vehicle, the installation can be carried on board any dump vehicle which is thus transformed into a road repair vehicle. The reverse transformation is just as simple. This makes it possible not to immobilize a vehicle solely for these repair works.

Claims (5)

1o) Installation pour la réparation de revê­tements routiers, notamment destinée à équiper un ca­mion-benne pour l'épandage simultané d'un liant et de gravillons aux endroits à réparer, installation com­prenant :
- des moyens d'épandage du liant (2) avec un réser­voir de liant et une rampe d'épandage commandée sélec­tivement ou globalement,
- des moyens d'épandage des gravillons (3) formés par un gravillonneur alimenté en gravillons à partir d'une benne par l'intermédiaire de trappes commandées sélec­tivement ou globalement,
installation caractérisée en ce qu'elle comprend :
- une caméra vidéo (5) visant la route en amont du ca­mion d'épandage (1),
- un écran vidéo tactile (6) affichant l'image de la caméra vidéo (5), et comportant des zones de commande tactile (S₁-S₄),
- un premier et un second capteurs de déplacement (8₁, 8₂) situés de part et d'autre du véhicule et fournis­sant des signaux de déplacement,
- une unité centrale de traitement (7) reliée à l'é­cran tactile (6) et aux deux capteurs (8₁, 8₂) pour recevoir les instructions introduites par l'écran tac­tile (6) et les signaux de déplacement (vitesse) four­nis par le premier et le second capteurs (8₁, 8₂), cette unité centrale (7) étant reliée en sortie aux moyens de commande de déplacement (9) et aux moyens de commande d'épandage (2, 3), l'unité centrale comman­dant le moyen d'entraînement du véhicule, la largeur et la position de l'épandage en fonction des instruc­tions introduites par l'écran tactile (6) et de la correction de décalage calculée à partir du mouvement du véhicule fourni par au moins un capteur de dépla­ cement (8₁, 8₂).1 o ) Installation for the repair of road surfaces, in particular intended to equip a dump truck for the simultaneous spreading of a binder and gravel at the places to be repaired, installation comprising:
means for spreading the binder (2) with a binder reservoir and a spreading ramp selectively or globally controlled,
means for spreading gravel (3) formed by a gravel spreader supplied with gravel from a grab by means of hatches selectively or globally controlled,
installation characterized in that it comprises:
- a video camera (5) targeting the road upstream of the spreading truck (1),
a touch screen video screen (6) displaying the image of the video camera (5), and comprising touch control zones (S₁-S₄),
- first and second displacement sensors (8₁, 8₂) located on either side of the vehicle and supplying displacement signals,
- a central processing unit (7) connected to the touch screen (6) and to the two sensors (8₁, 8₂) to receive the instructions introduced by the touch screen (6) and the displacement signals (speed) supplied by the first and second sensors (8₁, 8₂), this central unit (7) being connected at the output to the displacement control means (9) and to the spreading control means (2, 3), the central unit controlling the vehicle driving means, the width and the position of the spreading according to the instructions introduced by the touch screen (6) and the offset correction calculated from the movement of the vehicle provided by at least one displeased cement (8₁, 8₂). 2o) Installation selon la revendication 1, caractérisée en ce que le mouvement du véhicule est défini par une différence de vitesses fournies par deux capteurs de déplacement (8₁, 8₂).2 o ) Installation according to claim 1, characterized in that the movement of the vehicle is defined by a speed difference provided by two displacement sensors (8₁, 8₂). 3o) Installation selon la revendication 1, caractérisée en ce que les capteurs de déplacement sont des radars (8₁, 8₂).3 o ) Installation according to claim 1, characterized in that the displacement sensors are radars (8₁, 8₂). 4o) Installation selon la revendication 1, caractérisée en ce que la caméra vidéo (5) est alignée suivant un axe déterminé par rapport au véhicule (1) et l'écran vidéo tactile (6) est subdivisé transversa­lement en secteurs (S₁-S₄) associés chacun à une zone transversale (Z₁-Z₄) des moyens d'épandage de liant et de gravillons (2, 3), par l'unité centrale de traite­ment (7) en fonction des signaux de déplacement (vi­tesse de déplacement moyenne et vitesse de déplacement différentielle entre la droite et la gauche, circula­tion en ligne courbe).4 o ) Installation according to claim 1, characterized in that the video camera (5) is aligned along an axis determined relative to the vehicle (1) and the touchscreen video screen (6) is divided transversely into sectors (S₁-S₄ ) each associated with a transverse zone (Z₁-Z₄) of the means for spreading binder and gravel (2, 3), by the central processing unit (7) as a function of the displacement signals (average displacement speed and differential speed of movement between right and left, circulation in a curved line). 5o) Installation selon la revendication 1, caractérisée en ce que l'unité centrale de traitement (7) commande la vitesse de déplacement du véhicule (1) en fonction des paramètres de réparation et de traite­ment introduits dans l'unité centrale.5 o ) Installation according to claim 1, characterized in that the central processing unit (7) controls the speed of movement of the vehicle (1) according to repair and treatment parameters introduced into the central unit.
EP90401505A 1989-06-23 1990-06-05 Device for repairing road surfaces, in particular for equipping tipper trucks for spreading binder and aggregate Withdrawn EP0404623A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8908390A FR2648836B1 (en) 1989-06-23 1989-06-23 INSTALLATION FOR THE REPAIR OF ROAD COVERINGS PARTICULARLY INTENDED TO EQUIP A DUMP TRUCK FOR THE SPREADING OF BINDERS AND GRAVILLONS
FR8908390 1989-06-23

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EP0404623A1 true EP0404623A1 (en) 1990-12-27

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811728A1 (en) * 1996-06-05 1997-12-10 Kabushiki Kaisha Topcon Method for controlling an excavator
WO1999035336A1 (en) * 1997-12-31 1999-07-15 Concept Travaux Publics S.A.R.L. Method for actuating pipe and front closure plates
FR2775699A1 (en) * 1998-03-06 1999-09-10 Concept Travaux Publics Actuating method for road surface binding agent diffusers and gravel spreaders
GB2346350A (en) * 1999-02-06 2000-08-09 Rover Group A vehicle having a visual display unit with a touch-sensitive screen
FR2808031A1 (en) * 2000-04-19 2001-10-26 C M T P Automatic control method, of tray angle in a tip-truck delivering gravel during road works, uses information on gravel, pouring requirements and speed of vehicle to control angle or tray or opening of doors
FR2811342A1 (en) * 2000-07-07 2002-01-11 C M T P Targeting assembly for gravel spreading apparatus includes cross pattern with LEDs to materialize the open/close status of valves and command keypad with pushbuttons and thumb sensors
FR2817568A1 (en) * 2000-12-05 2002-06-07 C M T P Method and controller for spreading gravel and tar binder on a road surface so that spreading is automated and optimized, while a vehicle driver can concentrate on driving the spreading vehicle
FR2835545A1 (en) * 2002-02-04 2003-08-08 Concept Travaux Publics Method of operating discharge outlets for gravel lorry, involves using video cameras to monitor operation of outlet trap doors in hopper
FR2842543A1 (en) * 2002-07-17 2004-01-23 C M T P Out of phase operation method for exit doors in gravel distribution unit for road laying, takes into account distance travelled between camera viewing angle centre and spot where gravel falls
EP3078773B1 (en) 2007-04-19 2018-06-27 Wirtgen GmbH Self-propelled construction vehicle
FR3098528A1 (en) * 2019-07-12 2021-01-15 Secmair Mobile unit and method of making and / or repairing a road surface on a pavement
WO2023183727A1 (en) * 2022-03-25 2023-09-28 Idaho Asphalt Supply, Inc. Road building machine

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FR2746822B1 (en) * 1996-04-02 1998-06-19 Mauguin Sa EQUIPMENT MOUNTED ON A VEHICLE FOR THE SPILL ON THE GROUND OF A LIQUID CONTAINED IN A TANK

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DE2823324A1 (en) * 1977-05-30 1978-12-14 Queen In The Right Of The Prov METHOD AND DEVICE FOR MARKING A LINE ALONG A ROAD
FR2576336A1 (en) * 1985-01-22 1986-07-25 Secmair Sa Device for simultaneously spreading chippings and binder for the repair of roads
EP0307380A1 (en) * 1987-09-09 1989-03-15 Savalco Ab Equipment for combined spreading of binder and aggregate for road covering

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279029A (en) * 1969-10-09 1972-06-21 Pye Ltd Radar apparatus
FR2336514A1 (en) * 1975-12-23 1977-07-22 Genty Jacques Road surfacing plant controls - are attached to special purpose vehicles enabling exact position to be determined distance recorded and sprays activated
DE2823324A1 (en) * 1977-05-30 1978-12-14 Queen In The Right Of The Prov METHOD AND DEVICE FOR MARKING A LINE ALONG A ROAD
FR2576336A1 (en) * 1985-01-22 1986-07-25 Secmair Sa Device for simultaneously spreading chippings and binder for the repair of roads
EP0307380A1 (en) * 1987-09-09 1989-03-15 Savalco Ab Equipment for combined spreading of binder and aggregate for road covering

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811728A1 (en) * 1996-06-05 1997-12-10 Kabushiki Kaisha Topcon Method for controlling an excavator
WO1999035336A1 (en) * 1997-12-31 1999-07-15 Concept Travaux Publics S.A.R.L. Method for actuating pipe and front closure plates
FR2775699A1 (en) * 1998-03-06 1999-09-10 Concept Travaux Publics Actuating method for road surface binding agent diffusers and gravel spreaders
GB2346350A (en) * 1999-02-06 2000-08-09 Rover Group A vehicle having a visual display unit with a touch-sensitive screen
FR2808031A1 (en) * 2000-04-19 2001-10-26 C M T P Automatic control method, of tray angle in a tip-truck delivering gravel during road works, uses information on gravel, pouring requirements and speed of vehicle to control angle or tray or opening of doors
FR2811342A1 (en) * 2000-07-07 2002-01-11 C M T P Targeting assembly for gravel spreading apparatus includes cross pattern with LEDs to materialize the open/close status of valves and command keypad with pushbuttons and thumb sensors
FR2817568A1 (en) * 2000-12-05 2002-06-07 C M T P Method and controller for spreading gravel and tar binder on a road surface so that spreading is automated and optimized, while a vehicle driver can concentrate on driving the spreading vehicle
FR2835545A1 (en) * 2002-02-04 2003-08-08 Concept Travaux Publics Method of operating discharge outlets for gravel lorry, involves using video cameras to monitor operation of outlet trap doors in hopper
FR2842543A1 (en) * 2002-07-17 2004-01-23 C M T P Out of phase operation method for exit doors in gravel distribution unit for road laying, takes into account distance travelled between camera viewing angle centre and spot where gravel falls
EP3078773B1 (en) 2007-04-19 2018-06-27 Wirtgen GmbH Self-propelled construction vehicle
EP3078773B2 (en) † 2007-04-19 2023-04-05 Wirtgen GmbH Self-propelled construction vehicle
FR3098528A1 (en) * 2019-07-12 2021-01-15 Secmair Mobile unit and method of making and / or repairing a road surface on a pavement
WO2023183727A1 (en) * 2022-03-25 2023-09-28 Idaho Asphalt Supply, Inc. Road building machine

Also Published As

Publication number Publication date
FR2648836B1 (en) 1994-04-15
FR2648836A1 (en) 1990-12-28

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