WO2015122755A1 - Smart speed limit sign - Google Patents

Smart speed limit sign Download PDF

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Publication number
WO2015122755A1
WO2015122755A1 PCT/MA2014/000044 MA2014000044W WO2015122755A1 WO 2015122755 A1 WO2015122755 A1 WO 2015122755A1 MA 2014000044 W MA2014000044 W MA 2014000044W WO 2015122755 A1 WO2015122755 A1 WO 2015122755A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
speed limit
removable body
bars
panel according
Prior art date
Application number
PCT/MA2014/000044
Other languages
French (fr)
Inventor
Ezzahidi YAHYA
Abdellatif BENABDELLAH
Soukaina BOUKERCH
Omar ESSAHLI
Mohsine BOUYA
Original Assignee
Universite Internationale De Rabat
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Universite Internationale De Rabat filed Critical Universite Internationale De Rabat
Publication of WO2015122755A1 publication Critical patent/WO2015122755A1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/40—Arrangements responsive to adverse atmospheric conditions, e.g. to signal icy roads or to automatically illuminate in fog; Arrangements characterised by heating or drying means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element

Definitions

  • the present invention relates to road signs, and in particular to speed limit signs.
  • the speed limit signs indicate the limit speed under normal weather conditions. When the weather gets worse, driving becomes more dangerous because of:
  • Our invention consists of a low-cost speed limit sign that can be used by governments in all deployment positions without the need for proximity to the electricity grid. At the same time our panel has a default position which guarantees that the correct speed limit will always be displayed.
  • the panel object of our invention differs from conventional panels (1) by a rectangular section (2) which covers the display area of the limit speed of the panel. It also contains two vertical metal tracks (3) positioned on both sides of the rectangular section at the back of the panel which allow vertical translation movement of the removable body (5). Two thin convex bars of elastic metal (4) are positioned vertically on both sides of the rectangular section.
  • a rectangular platform (6) is fixed perpendicularly to the panel to support a spring (7). The spring is positioned between the perpendicular platform and the removable body.
  • the removable body is composed of 2 vertical bars (5.1) which fit on the tracks (3) of the panel. The insertion is carried out by a vertical translation movement up and down the bars on the tracks. The only possible movement of the removable body is a vertical translation movement.
  • the removable body also contains two thin convex metal elastic bars (5.2) which are positioned vertically on both sides of the rectangular cup and below equivalent bars on the panel (4). These bars (5.2) provide resistance to the translational movement and allow to keep two possible stable positions during the translation: below or above the equivalent bars on the panel (4).
  • a display plate (5.3) containing two limit speeds is fixed to the removable body so that one of the two speeds is superimposed on the section (2) on the panel in each of the two stable positions allowed in the vertical translation. .
  • a tray (5.4) is also attached to the rear face of the removable body. Its upper part is open to accommodate rainwater. It also contains a hole at its base (5.5) with a calculated diameter to have a controlled leakage of rainwater.
  • the operating principle is simple. When there is no rain, the tank (5.4) is empty, its weight is reduced. The force applied by the spring (7) upwards is thus greater than the weight and the deformation resistance of the combined convex metal bars. The removable body is then pushed to the upper position, thus displaying the normal limit speed through the cut on the panel.
  • the tank When the rain falls, the tank begins to fill, increasing its weight. When the weight becomes greater than the combined forces of deformation resistance of the convex metal bars and spring resistance, then the removable body is pushed to the lower position, thus displaying the reduced limit speed in rainy weather through the cut on the panel .
  • the tank gradually empties through the drain hole (5.5) until the force applied by the spring (7) upward is greater than the weight and the deformation resistance of the convex metallic bars combined. The removable body is then pushed to the upper position, thus displaying the normal limit speed through the cut on the panel.
  • Figure 1 provides an orthogonal projection front view of the entire smart panel.
  • Figure 2 provides an orthogonal projection seen from the back of the smart panel top without details on removable body.
  • Figure 3 provides an orthogonal projection front view of the removable body.
  • Figure 4 provides an orthogonal projection seen from the right of the smart panel top, when the removable body is in the lower position.
  • Figure 5 provides an orthogonal projection seen from the right of the smart panel top, when the removable body is in the upper position.

Abstract

The invention relates to a speed limit sign that changes the displayed speed limit depending on the weather conditions: dry or rainy weather. It has the advantage of being low cost by using a simple mechanical system. It comprises a rainwater collection tray that is connected to a display plate that scrolls vertically, depending on the position of the tray, to display either the normal speed limit or the speed limit in rainy weather.

Description

Panneau de limitation de vitesse intelligent  Smart speed limit sign
Description  Description
La présente invention se rapporte aux panneaux de signalisation routière, et en particulier aux panneaux de limitation de vitesse.  The present invention relates to road signs, and in particular to speed limit signs.
Les panneaux limitations de vitesses indiquent la vitesse limite dans des conditions météorologiques normales. Lorsque la météo se dégrade, la conduite devient plus dangereuse à cause de : The speed limit signs indicate the limit speed under normal weather conditions. When the weather gets worse, driving becomes more dangerous because of:
• La diminution de la distance visibilité • The decrease in the visibility distance
• La buée qui se forme sur les vitres  • The mist that forms on the windows
• La faible visibilité causée par l'écoulement de l'eau sur le pare-brise  • Low visibility caused by the flow of water on the windshield
• La diminution de l'adhérence des roues sur la chaussée  • Reduced traction of the wheels on the roadway
• D'où la diminution de la stabilité du véhicule  • Hence the decrease in the stability of the vehicle
Pour ces raisons, les conducteurs doivent diminuer leur vitesse afin de diminuer les risques d'accidents. Les panneaux de limitation de vitesse conventionnels étant constitués d'un bloc soudé en métal peint ou recouvert de film réfléchissant, il est impossible en pratique d'indiquer une vitesse limite inférieure lorsque les conditions météorologiques se dégradent.For these reasons, drivers must reduce their speed to reduce the risk of accidents. Since conventional speed limit signs consist of a welded metal block painted or covered with reflective film, it is impractical to indicate a lower limit speed when the weather conditions deteriorate.
Il existe aujourd'hui plusieurs systèmes qui détectent les conditions météorologiques dégradées et affichent des messages appropriés ou changent la limitation de vitesse. La majorité de ces systèmes utilisent un affichage électrique basé sur des LED ou des tubes à néons. Ils nécessitent donc une alimentation électrique continue qui n'est pas disponible dans toutes les positions de déploiement des panneaux, en particulier dans les zones rurales où le réseau électrique public est trop éloigné ou nécessite des transformateurs pour adapter le voltage. En même temps, ces systèmes n'ont pas de mécanisme par défaut qui va afficher une limitation de vitesse même en cas de coupure de courant ou de panne électronique. Le coût d'acquisition de ces systèmes est également souvent élevé, ce qui limite leurs adoptions par les gouvernements. There are now several systems that detect weather conditions and display appropriate messages or change the speed limit. Most of these systems use an LED-based electrical display or neon tubes. They therefore require a continuous power supply that is not available in all panel deployment positions, especially in rural areas where the utility grid is too far away or requires transformers to adjust the voltage. At the same time, these systems have no default mechanism that will display a speed limitation even in the event of power failure or electronic failure. The cost of acquiring these systems is also often high, which limits their adoption by governments.
Notre invention consiste en un panneau de limitation de vitesse à bas coût, qui pourra être utilisé par les gouvernements dans toutes les positions de déploiement sans nécessité de proximité du réseau électrique. En même temps notre panneau dispose d'une position par défaut qui garantie que la limitation de vitesse correcte sera toujours affichée. Our invention consists of a low-cost speed limit sign that can be used by governments in all deployment positions without the need for proximity to the electricity grid. At the same time our panel has a default position which guarantees that the correct speed limit will always be displayed.
Le panneau objet de notre invention diffère des panneaux conventionnels (1) par une coupe rectangulaire (2) qui couvre la zone d'affichage de la vitesse limite du panneau. Il contient également deux pistes métalliques verticales (3) positionnées des deux côtés de la coupe rectangulaire à l'arrière du panneau qui permettent un mouvement de translation verticale du corps amovible (5). Deux fines barres convexes de métal élastique (4) sont positionnées verticalement sur les deux côtés de la coupe rectangulaire. Une plateforme rectangulaire (6) est fixée de façon perpendiculaire au panneau pour servir de support à un ressort (7). Le ressort est positionné entre la plateforme perpendiculaire et le corps amovible. The panel object of our invention differs from conventional panels (1) by a rectangular section (2) which covers the display area of the limit speed of the panel. It also contains two vertical metal tracks (3) positioned on both sides of the rectangular section at the back of the panel which allow vertical translation movement of the removable body (5). Two thin convex bars of elastic metal (4) are positioned vertically on both sides of the rectangular section. A rectangular platform (6) is fixed perpendicularly to the panel to support a spring (7). The spring is positioned between the perpendicular platform and the removable body.
Le corps amovible est composé de 2 barres verticales (5.1) qui s'insèrent sur les pistes (3) du panneau. L'insertion s'effectue par un mouvement de translation verticale de haut en bas des barres sur les pistes. Le seul mouvement possible du corps amovible est un mouvement de translation verticale. Le corps amovible contient également deux fines barres convexes de métal élastique (5.2) qui sont positionnées verticalement sur les deux côtés de la coupe rectangulaire et en dessous de barres équivalentes sur le panneau (4). Ces barres (5.2) fournissent une résistance au mouvement de translation et permettent de garder deux positions stables possibles lors de la translation : en dessous ou en dessus des barres équivalentes sur le panneau (4). Une plaque d'affichage (5.3) contenant deux vitesses limites est fixée au corps amovible de façon à ce que l'une des deux vitesses est superposée à la coupe (2) sur le panneau dans chacune des deux positions stables autorisées dans la translation verticale. Un bac (5.4) est également fixé à la face arrière du corps amovible. Sa partie supérieure est ouverte pour accueillir l'eau de pluie. Il contient également un trou à sa base (5.5) avec un diamètre calculé pour avoir une fuite contrôlée de l'eau de pluie.  The removable body is composed of 2 vertical bars (5.1) which fit on the tracks (3) of the panel. The insertion is carried out by a vertical translation movement up and down the bars on the tracks. The only possible movement of the removable body is a vertical translation movement. The removable body also contains two thin convex metal elastic bars (5.2) which are positioned vertically on both sides of the rectangular cup and below equivalent bars on the panel (4). These bars (5.2) provide resistance to the translational movement and allow to keep two possible stable positions during the translation: below or above the equivalent bars on the panel (4). A display plate (5.3) containing two limit speeds is fixed to the removable body so that one of the two speeds is superimposed on the section (2) on the panel in each of the two stable positions allowed in the vertical translation. . A tray (5.4) is also attached to the rear face of the removable body. Its upper part is open to accommodate rainwater. It also contains a hole at its base (5.5) with a calculated diameter to have a controlled leakage of rainwater.
Le principe de fonctionnement est simple. Lorsqu'il n'y a pas de pluie, le bac (5.4) est vide, son poids est donc réduit. La force appliquée par le ressort (7) vers le haut est ainsi supérieure au poids et à la résistance de déformation des barres métalliques convexes combinées. Le corps amovible est alors poussé vers la position supérieure, affichant ainsi la vitesse limite normale à travers la coupe sur le panneau.  The operating principle is simple. When there is no rain, the tank (5.4) is empty, its weight is reduced. The force applied by the spring (7) upwards is thus greater than the weight and the deformation resistance of the combined convex metal bars. The removable body is then pushed to the upper position, thus displaying the normal limit speed through the cut on the panel.
Lorsque la pluie tombe, le bac commence à se remplir augmentant ainsi son poids. Lorsque le poids devient supérieur aux forces combinées de résistance de déformation des barres métalliques convexes et de résistance du ressort, alors le corps amovible est poussé vers la position inférieure, affichant ainsi la vitesse limite réduite en temps de pluie à travers la coupe sur le panneau. Lorsque la pluie s'arrête, le bac se vide progressivement à travers le trou d'évacuation (5.5) jusqu'à ce que la force appliquée par le ressort (7) vers le haut soit supérieure au poids et à la résistance de déformation des barres métalliques convexes combinées. Le corps amovible est alors poussé vers la position supérieure, affichant ainsi la vitesse limite normale à travers la coupe sur le panneau. When the rain falls, the tank begins to fill, increasing its weight. When the weight becomes greater than the combined forces of deformation resistance of the convex metal bars and spring resistance, then the removable body is pushed to the lower position, thus displaying the reduced limit speed in rainy weather through the cut on the panel . When the rain stops, the tank gradually empties through the drain hole (5.5) until the force applied by the spring (7) upward is greater than the weight and the deformation resistance of the convex metallic bars combined. The removable body is then pushed to the upper position, thus displaying the normal limit speed through the cut on the panel.
La figure 1 fournit une projection orthogonale vue de face du panneau intelligent en entier. Figure 1 provides an orthogonal projection front view of the entire smart panel.
La figure 2 fournit une projection orthogonale vue de dos de la partie supérieure de panneau intelligent, sans détails sur corps amovible. Figure 2 provides an orthogonal projection seen from the back of the smart panel top without details on removable body.
La figure 3 fournit une projection orthogonale vue de face du corps amovible.  Figure 3 provides an orthogonal projection front view of the removable body.
La figure 4 fournit une projection orthogonale vue de droite de la partie supérieure de panneau intelligent, lorsque le corps amovible est en position inférieure. Quelques éléments déjà présentés auparavant sont omis pour clarifier le dessin.  Figure 4 provides an orthogonal projection seen from the right of the smart panel top, when the removable body is in the lower position. Some elements already presented before are omitted to clarify the drawing.
La figure 5 fournit une projection orthogonale vue de droite de la partie supérieure de panneau intelligent, lorsque le corps amovible est en position supérieure. Quelques éléments déjà présentés auparavant sont omis pour clarifier le dessin.  Figure 5 provides an orthogonal projection seen from the right of the smart panel top, when the removable body is in the upper position. Some elements already presented before are omitted to clarify the drawing.

Claims

Revendications claims
1- Un panneau de limitation de vitesse caractérisé par une coupe rectangulaire (2) qui couvre la zone d'affichage de la vitesse limite du panneau. Un corps amovible (5) est positionné à l'arrière du panneau affichant une vitesse limite différente selon si la pluie est entrain de tomber ou pas.  1- A speed limitation panel characterized by a rectangular section (2) which covers the display area of the limit speed of the panel. A removable body (5) is positioned at the rear of the panel displaying a different speed limit depending on whether the rain is falling or not.
2- Un panneau de limitation de vitesse selon la revendication 1 caractérisé par deux pistes métalliques verticales (3) positionnées des deux côtés de la coupe rectangulaire à l'arrière du panneau qui permettent un mouvement de translation verticale du corps amovible (5). 2- A speed limit panel according to claim 1 characterized by two vertical metal tracks (3) positioned on both sides of the rectangular section at the rear of the panel which allow a vertical translation movement of the removable body (5).
3- Un panneau de limitation de vitesse selon les revendications 1 et 2 caractérisé par une plateforme rectangulaire (6) qui est fixée de façon perpendiculaire au panneau pour service de support à un ressort (7). Le ressort est positionné entre la plateforme perpendiculaire et le corps amovible. 3- A speed limit panel according to claims 1 and 2 characterized by a rectangular platform (6) which is fixed perpendicularly to the support service panel with a spring (7). The spring is positioned between the perpendicular platform and the removable body.
4- Un panneau de limitation de vitesse selon les revendications 1, 2 et 3 caractérisé par un corps amovible (5) qui est composé de 2 barres verticales (5.1) qui s'insèrent sur les pistes (3) du panneau. Le seul mouvement possible du corps amovible est un mouvement de translation verticale.  4- A speed limit panel according to claims 1, 2 and 3 characterized by a removable body (5) which is composed of 2 vertical bars (5.1) which fit on the tracks (3) of the panel. The only possible movement of the removable body is a vertical translation movement.
5- Un panneau de limitation de vitesse selon les revendications 1, 2, 3 et 4 caractérisé en ce que l'insertion du corps amovible s'effectue par un mouvement de translation verticale de haut en bas des barres sur les pistes.  5- A speed limit panel according to claims 1, 2, 3 and 4 characterized in that the insertion of the removable body is effected by a vertical translation movement up and down the bars on the tracks.
6- Un panneau de limitation de vitesse selon les revendications 1, 2, 3, 4 et 5 caractérisé par deux fines barres convexes de métal élastique (4) qui sont positionnées verticalement sur les deux côtés de la coupe rectangulaire. Le corps amovible contient également deux fines barres convexes de métal élastique (5.2) qui sont positionnées verticalement sur les deux côtés de la coupe rectangulaire et en dessous de barres équivalentes sur le panneau (4). Ces barres (5.2) fournissent une résistance au mouvement de translation et permettent de garder deux positions stables possibles lors de la translation : en dessous ou en dessus des barres équivalentes sur le panneau (4).  6- A speed limit panel according to claims 1, 2, 3, 4 and 5 characterized by two thin convex bars of elastic metal (4) which are positioned vertically on both sides of the rectangular section. The removable body also contains two thin convex metal elastic bars (5.2) which are positioned vertically on both sides of the rectangular cup and below equivalent bars on the panel (4). These bars (5.2) provide resistance to the translational movement and allow to keep two possible stable positions during the translation: below or above the equivalent bars on the panel (4).
7- Un panneau de limitation de vitesse selon les revendications 1, 2, 3, 4, 5 et 6 caractérisé par une plaque d'affichage (5.3) contenant deux vitesses limites qui est fixée au corps amovible de façon à ce que l'une des deux vitesses est superposée à la coupe (2) sur le panneau dans chacune des deux positions stables autorisées dans la translation verticale. Un bac (5.4) est également fixé à la face arrière du corps amovible. Sa partie supérieure est ouverte pour accueillir l'eau de pluie. Il contient également un trou à sa base (5.5) avec un diamètre calculé pour avoir une fuite contrôlée de l'eau de pluie.  7- A speed limit panel according to claims 1, 2, 3, 4, 5 and 6 characterized by a display plate (5.3) containing two limit speeds which is fixed to the removable body so that one of the two speeds is superimposed on the section (2) on the panel in each of the two stable positions allowed in the vertical translation. A tray (5.4) is also attached to the rear face of the removable body. Its upper part is open to accommodate rainwater. It also contains a hole at its base (5.5) with a calculated diameter to have a controlled leakage of rainwater.
PCT/MA2014/000044 2014-01-16 2014-11-28 Smart speed limit sign WO2015122755A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MA36682 2014-01-16
MA36682A MA36682B1 (en) 2014-01-16 2014-01-16 Smart speed limit sign

Publications (1)

Publication Number Publication Date
WO2015122755A1 true WO2015122755A1 (en) 2015-08-20

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PCT/MA2014/000044 WO2015122755A1 (en) 2014-01-16 2014-11-28 Smart speed limit sign

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922981A (en) * 1956-11-15 1960-01-26 John W Anderson Automatic variable speed-limit sign
FR2521609A1 (en) * 1982-02-12 1983-08-19 Patrice Ficheux Warning sign esp. for roads - comprises message panel which bears against translucent window to effect display
KR20130003306U (en) * 2011-11-28 2013-06-05 김경재 A traffic signboard with weather senes system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922981A (en) * 1956-11-15 1960-01-26 John W Anderson Automatic variable speed-limit sign
FR2521609A1 (en) * 1982-02-12 1983-08-19 Patrice Ficheux Warning sign esp. for roads - comprises message panel which bears against translucent window to effect display
KR20130003306U (en) * 2011-11-28 2013-06-05 김경재 A traffic signboard with weather senes system

Also Published As

Publication number Publication date
MA20150268A1 (en) 2015-08-31
MA36682B1 (en) 2016-03-31

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