WO1992021115A1 - Device for controlling and synchronising a plurality of road traffic lights - Google Patents

Device for controlling and synchronising a plurality of road traffic lights Download PDF

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Publication number
WO1992021115A1
WO1992021115A1 PCT/FR1992/000454 FR9200454W WO9221115A1 WO 1992021115 A1 WO1992021115 A1 WO 1992021115A1 FR 9200454 W FR9200454 W FR 9200454W WO 9221115 A1 WO9221115 A1 WO 9221115A1
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WO
WIPO (PCT)
Prior art keywords
unit
management unit
lights
card
power
Prior art date
Application number
PCT/FR1992/000454
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French (fr)
Inventor
Pascal Reygner
Original Assignee
Colas S.A.
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 Colas S.A. filed Critical Colas S.A.
Publication of WO1992021115A1 publication Critical patent/WO1992021115A1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals

Definitions

  • the present invention relates to a device for controlling and synchronizing several traffic control lights (car traffic, pedestrian traffic, etc.) . More particularly, the invention relates to a device for controlling several traffic lights for regulating road traffic at the same crossroads.
  • traffic light intersections are most often controlled by a centralized control cabinet for the power and control members. This cabinet is directly connected in particular to each of the intersection light lamps, as well as to the various external information sensors, such as the pedestrian call pushbuttons and vehicle detectors. This requires special wiring between the centralizing control cabinet and each of the intersection lights.
  • GB-A-2.210.719 proposes a light control structure intended to reduce the number of individual cables usually drawn between a central control unit and the different light heads. This control structure comprises a cable which transmits to the various headlights connected in series to each other both the power necessary for their operation and control information.
  • French patent application FR-A-2-498.786 discloses a substantially silimar system.
  • This system includes a control cabinet with central actuator, local actuators at each light. These local actuators have interfaces which receive the orders transmitted on each light by the control cabinet by means of a line of single transmission independent of the power supply line also unique for the crossroads.
  • control cabinets are all the more important, which is not without drawbacks in urban areas, especially on a narrow sidewalk. Also the wire connections between the control cabinet and the various lights are all the more complex, and therefore all the less reliable and all the more expensive.
  • the present invention for its part, provides a control device for road intersection lights of a new type, which in particular makes it possible to simplify and make reliable the wired links installed on a traffic intersection, while remaining compliant with the safety standards in force.
  • the device proposed by the invention also makes it possible to considerably reduce the dimensioning of the cabinets.
  • the present invention therefore relates to a device for controlling and synchronizing several road traffic control lights, comprising a main management unit, as well as for each of said lights a secondary unit supplying the latter with power, said secondary unit being able to communicate with said management unit by a computer link and receiving in particular from said management unit orders according to which said secondary unit activates the lamp (s) of the fire with which it is associated, characterized in that said secondary units are each arranged respectively at the level of the light with which they are associated, a light being connected to the management unit at least by the aforementioned computer link between said management unit and its secondary unit.
  • a secondary unit comprises a power card receiving, on the one hand, a power supply from a source which is external to it, and, on the other hand, from the management unit, via the computer link between said secondary unit and said management unit, orders according to which said power card activates the various lamps of the fire associated with said secondary unit;
  • a power card sends back to the management unit, via the above computer link, data relating to the operation of the various lamps of the light with which its secondary unit is associated;
  • a secondary unit also comprises a card with several inputs receiving information relating to automobile traffic and / or pedestrians from different external sensors, said card with several inputs transmitting said information to said management unit via the abovementioned computer link between said management unit and said secondary unit;
  • the secondary units are supplied with power by the energy source which also supplies the management unit; - each secondary unit is supplied with power by its own energy source; - the management unit and / or a secondary unit comprises (s) a stabilized supply device receiving at input a voltage from an external voltage source and supplying at output the unit with which it is associated; the management unit comprises a central microprocessor unit, as well as a card managing the interface between on the one hand, said management unit and, on the other hand, the computer link (s) (s) with secondary units;
  • the management unit comprises a non-volatile random access memory to which the microprocessor is connected and containing modifiable data relating to the control and synchronization of the lights and the means enabling a maintenance agent to program said site on site memory;
  • the management unit is arranged in a control cabinet outside the fire, all the dimensions of which are less than 400 mm;
  • the management unit is placed inside one of the light support posts.
  • the subject of the invention is also a method of connecting a new light to a management unit for several lights already in place, of such a device, in particular in the event of an extension of a road junction, said light. being associated with a secondary unit intended to supply it with power, characterized in that one extends in particular the computer link between a secondary unit already connected to said management unit to connect in series by said computer link said secondary unit and the secondary unit of the new fire to the management unit.
  • Figure 1 schematically illustrates the wiring between a control device according to the prior art and the various lights of a road junction.
  • FIG. 2 is a block diagram of the same control device according to the prior art.
  • Figure 3 schematically illustrates the wiring between a control device according to a first possible embodiment of the invention and the various lights of a road junction.
  • FIG. 4 is a block diagram of said control device according to said first possible embodiment of the invention.
  • Figure 5 schematically illustrates the wiring between a control device according to a second possible embodiment of the invention and the various lights of a road junction.
  • Figure 6 is a block diagram of said control device according to said second possible embodiment of the invention.
  • Figure 7 is a block representation of the central unit of a control device according to the invention.
  • Figure 8 is a block representation of the interface card between the central unit of the same control device and the different control cards which are associated with the different traffic lights.
  • Figure 9 is a block representation of a power card, associated with a particular traffic light at a crossroads, of the same control device.
  • Figure 10 is a block representation of a card with several inputs, for reception external information at a particular traffic light at a crossroads, from the same control device.
  • FIG. 1 it can be seen that in the state of the prior art, the various lights, referenced from FI to F4, of a crossroad Cl, which is for example the crossing of two roads, are controlled by a centralized device in a control cabinet Al.
  • This control cabinet Al is connected, on the one hand to an energy source El and, on the other hand, respectively by independent cabling CB1 to CB4 to the various lights FI and F4.
  • These various cabling CB1 to CB4 mainly comprise supply wires for the red, orange and green lamps of each of the three-color lights FI to F4, as well as wires connected to external information sensors, such as push buttons for pedestrians and vehicle detectors (not shown).
  • FIG. 2 has been shown schematically all of the control electronics grouped in the cabinet Al and distributed from this cabinet Al.
  • This control electronics mainly comprises a central unit UC1 receiving as inputs a low supply voltage ( +5 volts) supplied by an ASl power supply stabilizer, itself supplied with 110 volts or 220 volts alternating voltage or 12 or 24 volts direct voltage by the energy source El.
  • this central unit UC1 dialogues , via an interface C11, with different secondary units B1 to B4 (only B3 having been shown) arranged in the cabinet Al and supplying via the cables CB1 to CB4 the red, orange incandescent lamps, green of fire, such as F3, with which they are respectively associated.
  • the device for controlling and synchronizing the lights Fil to F14 of a crossroad C2 which is represented therein and which conforms to a first possible embodiment of the invention, comprises electronic centralizing management system located in an A2 control cabinet and linked by computer to secondary control units B11 to B14 associated respectively with the lights Fil to F14.
  • the A2 cabinet is much smaller than the usual cabinets (height, width and length less than 400 mm).
  • Each of these secondary control units B11 to B14 controls and controls the operation of the various lamps of the lights Fil to F14 with which they are respectively associated.
  • Each of these secondary units B11 to B14 is therefore connected by wire to each of the lamps of said lights Fil to F14.
  • Each of these units is also connected by wire to various usual external sensors (push buttons for pedestrians, vehicle detectors, etc.).
  • the secondary control unit B11 which is associated with that of the lights which is close to the control cabinet A2, is arranged in said control cabinet A2. It is connected to the various Wire fire lamps and sensors by CB11 multi-wire wiring.
  • An energy source E21 supplies said control cabinet A2 and the secondary unit B11.
  • the other secondary units B12 to B14 are each arranged at the level of the lights F12 to F14 with which they are associated. They are each supplied by an independent energy source E22 to E24 and are not connected to the cabinet control A2 only by a computer link CB10 connecting in series the various secondary control units B11 to B14 to the main centralizing management unit.
  • This computer link in series CB10 is a link of the BUS type and more particularly of the bidirectional type marketed by the company PHILIPS under the trade name BUS I2C (registered trademark).
  • FIG 4 which has been represented schematically by blocks all of the control and synchronization electronics of the crossroads, we see that it mainly comprises a centralized management unit arranged in the cabinet A2 as well as, for each of the lights Fil to F14, a secondary control unit B11 to B14 of which only B13 has been illustrated.
  • the management unit in the cabinet A2 consists of a central unit UC2 supplied with +5 volts by a stabilized supply device AS2 receiving the energy E21 as an input.
  • This central unit UC2 dialogues via an interface card CI2 with the various control units B11 to B14 connected in series along the computer link BUS CB10.
  • a control electronics B11 to B14 mainly comprises a power card and an input card, referenced respectively by CP23 and CE23 for the electronics B13.
  • the power card CP23 delivers, at the level of the light F13, as a function of the information received from the central unit UC2, the supply of the lamps of said light.
  • the CE23 entry card receives calls from users at the F13 light (pedestrian call, car detector, etc.). It codes the information thus received and sends it back to the central unit UC2.
  • the CP23 and CE23 cards are both supplied at +5 volts via an AS23 stabilized power supply device receiving input energy E23 at the F13 fire (alternative 220 volts or 110 volts or 24 volts; 12 continuous volts).
  • the control units B11, B12 and B14 are of course identical to the unit B13.
  • the lights Fil to F14 each provided with a control unit B11 to B14, are considered as "peripherals" of the central unit UC2.
  • FIGS. 5 and 6 are analogous respectively to FIGS. 3 and 4.
  • the various lights F21 and F24 of a crossroads C3 are also each associated with a secondary control unit referenced respectively by B21 to B24.
  • These different units B21 to B24 are connected in series by a computer link CB20 of the same type as the link CB10 to the centralizing electronics of the control and synchronization device according to this variant, which is arranged in an A3 control cabinet.
  • the entire device of this crossroads C3 is supplied only by a single energy source E3 at the level of the control cabinet A3.
  • CB20 wiring is coupled with CB21 power supply wiring.
  • the cabinet A3 includes, similarly to the cabinet A2, a central unit UC3 associated with an interface card CI3 and with a power stabilizing device AS3.
  • the control units B21 to B24 include, analogously to the units B11 to B14, a power card and an input card associated with a power supply stabilizer, these different elements being referenced respectively, for the electronics B23 which alone has been represented in FIG. 5, CP33, CE33 and AS33.
  • these stabilized power supply devices such as the device AS33, receive energy derived from energy source E3 at the input of the power supply device AS3 and transmitted by the aforementioned wiring CB21.
  • the extension of the crossroads will no longer imply the need to draw a new link from the control cabinet.
  • An extension of the crossroads should cause less nuisance for users.
  • FIG. 7 shows a central processing unit UC, such as the central processing units UC2 and UC3, of a device according to the invention, mainly comprises a microprocessor 1, 8 bits, clocked at 6 MHz associated with a EPROM type 2 program memory, 32 or 64 Kbytes. The timing is provided by an oscillator 3.
  • This microprocessor 1 can receive programming instructions from a possible operator acting on the pushbuttons of an assembly 5 arranged at the level of the control cabinet A2. This operator will be able to view and. to control the state of the outputs, inputs, cycles, safety devices and faults from a 16 character liquid crystal display (LCD) 4.
  • LCD 16 character liquid crystal display
  • This microprocessor 1 also dialogues with the interface card CI to which it is connected by means of connection means 6, as well as by means of connection means 7 with a control unit allowing, for example to an agent dispatched to regulate traffic, to intervene punctually s ⁇ ur operation of fire.
  • FIG. 8 shows a block diagram of an interface card CI such as the cards CI2 and CI3.
  • This interface card CI includes a real-time clock 8 with backup accumulator 9 associated with a backup memory 10 of 256 bytes memorizing the observed faults in the operation of the lights.
  • This CI card also includes a non-volatile RAM 11 of 256 bytes containing the programming of the crossroads and in particular the programming instructions provided to the microprocessor, by an operator from the assembly 5 of FIG.
  • FIG. 9 shows a block diagram of a power card CP such as CP23 or CP33 used for units B11 to B14 and B21 to B24.
  • a power card CP includes a connector 19 with the I2C bus (referenced CB10 or CB20 in Figures 3-4 and 5-6 respectively). It receives as input therefrom the serialized commands transmitted by the microprocessor 1.
  • This connector 19 is connected at output to a line amplifier 20 itself connected to a converter 21 serial / parallel 8 bits ensuring the serialization and deserialization of data exchanged between the I2C BUS and the lamps of the light with which it is associated.
  • This converter 21 sends on the R and V power control and switching members red and green lamps on and off orders and receives from these the operating control information which it sends back to the BUS.
  • This converter 21 also sends back on / off or switching orders to the flashing yellow on the power control and switching members J of the yellow light lamp, by means of a switching assembly (safety flashing yellow ) (on-off) 22.
  • the converter 21 also receives these control units J information concerning the operation of the yellow lamp which it transmits to BUS 12C.
  • the RVJ power control and switching members are supplied by an energy source which is, if necessary, that which supplies the stabilized supply device at the input of the corresponding secondary unit.
  • the power members are galvanically isolated and are for example TRIACS alternating 110 volts or 220 volts, or MOSFETS continuously 12 or 24 volts.
  • the control is a current control for the red lamp and a voltage control for the other outputs.
  • Each power card ⁇ CP thus controls four outputs connected to the fire lamps (connector 23): main red, secondary red (repeater), yellow, green.
  • a CE card such as CE23 (figure 4) and CE33
  • Figure 10 It mainly comprises a connector 24 making the connection with the interface card CI and the associated I2C BUS and a connector 25 receiving the inputs of the various associated external sensors.
  • the connector 25 is connected to a set 26 of 8 optocouplers making it possible to read the state of the sensors, itself connected to a converter 27 parallel / serial 8 bits making it possible to serialize the information received from the sensor to transmit it to the card BUS line interface.
  • a converter 27 parallel / serial 8 bits making it possible to serialize the information received from the sensor to transmit it to the card BUS line interface.
  • the machine which has just been described can be used for permanent crossroads (generally supplied with 110 volts, 220 volts or 24 volts alternating) as well as for crossroads temporary, usually battery powered.
  • the proposed modular system allows easy adaptation to the different possible configurations.
  • the automaton manages the successive operating sequences of a crossroads, taking into account the safety of users and trying to adapt light cycles as much as possible to the number of vehicles arriving on each lane.
  • the PLC accepts the following operating modes:
  • Each light can be equipped with 1 to 4 lamps (with a power of up to 750 at 220V) permanently controlled:
  • Flashing yellow or solid green at the bottom (voltage controlled). 5 different types of fire can be used
  • Tricolor lights solid red, solid yellow [3 sec.], Solid green
  • Pedestrian lights solid red, flashing green, solid green.
  • Directional arrow flashing yellow, extinction).
  • JCS mode yellow flashing of security
  • major faults absence of main red abnormal presence of red, yellow or green antagonism between lights insufficient green duration programming fault error in memory derives from the clock.
  • the computer link must ensure total security. To do this, each time the central unit sends a message to a peripheral, it must receive a positive acknowledgment. If there is no response, the central unit must stop all dialogue and place the entire installation in safety mode.
  • the computer link can be made using other technologies: high-speed network type link, telephone pair link, "carrier current" link (which would allow using only one cable at a time to convey the power to the secondary control units and the signals exchanged with the main control unit).
  • carrier current link which would allow using only one cable at a time to convey the power to the secondary control units and the signals exchanged with the main control unit.
  • optical fibers instead of cables for the computer link would also considerably increase immunity to parasites and lightning.
  • the possibility of positioning the power supply at the foot of the fire makes it possible to envisage the creation of intersections powered by sector and backed up by batteries, in order to ensure permanent operation even in the event of a power outage and thus improve user safety.

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Abstract

Device for controlling and synchronizing a plurality of traffic lights (F11-F14, F21-F24) for the regulation of the road traffic, comprising a main management unit (A2, A3), as well as for each of said traffic lights (F11-F14, F21-F24) a secondary unit (B11-B14, B21-B24) which supplies power to each traffic light, said secondary unit (B11-B14, B21-B24) being capable of communicating with said management unit (A2, A3) through a data processing link (CB10, CB20) and receiving particularly from said management unit (A2, A3) commands according to which said secondary unit (B11-B14, B21-B24) activates the lamp or lamps of the traffic light (F11-F14, F21-F24) with which it is associated, the device being caracterized in that said secondary units (B11-B14, B21-B24) are each placed respectively at the traffic light (F11-F14, F21-F24) with which they are associated, one traffic light (F11-F14, F21-F24) being connected to the management unit (A2, A3) at least through the above mentioned data processing link (CB10, CB20) between said management unit (A2, A3) and its secondary unit (B11-B14, B21-B24).

Description

"Dispositif de commande et de synchronisation de plusieurs feux de régulation du trafic routier" La présente invention est relative à un dispositif de commande et de synchronisation de plusieurs feux de régulation du trafic routier (trafic automobile, circulation piétonne, etc....). Plus particulièrement, l'invention concerne un dispositif de commande de plusieurs feux tricolores de régulation du trafic routier d'un même carrefour. Les carrefours à feux sont à l'heure actuelle le plus souvent commandés par une armoire de commande centralisatrice des organes de puissance et de commande. Cette armoire est directement reliée notamment à chacune des lampes des feux du carrefour, ainsi qu'aux différents capteurs d'informations extérieures, tels que les boutons-poussoirs d'appel de piétons et les détecteurs de véhicules. Ceci suppose un câblage particulier entre l'armoire de commande centralisatrice et chacun des feux du carrefour. Le document GB-A-2.210.719 propose une structure de commande de feux destinée à réduire le nombre de câbles individuels tirés habituellement entre une unité centrale de commande et les différentes têtes de feux. Cette structure de commande comprend un câble qui transmet aux différentes têtes de feux reliées en séries les unes aux autres à la fois la puissance nécessaire à leur fonctionnement et des informations de commande. "Device for controlling and synchronizing several traffic control lights" The present invention relates to a device for controlling and synchronizing several traffic control lights (car traffic, pedestrian traffic, etc.) . More particularly, the invention relates to a device for controlling several traffic lights for regulating road traffic at the same crossroads. Currently, traffic light intersections are most often controlled by a centralized control cabinet for the power and control members. This cabinet is directly connected in particular to each of the intersection light lamps, as well as to the various external information sensors, such as the pedestrian call pushbuttons and vehicle detectors. This requires special wiring between the centralizing control cabinet and each of the intersection lights. GB-A-2.210.719 proposes a light control structure intended to reduce the number of individual cables usually drawn between a central control unit and the different light heads. This control structure comprises a cable which transmits to the various headlights connected in series to each other both the power necessary for their operation and control information.
La demande de brevet français FR-A-2-498.786 divulgue un système sensiblement silimaire. Ce système comprend une armoire de contrôle à actionneur central, des actionneurs locaux au niveau de chaque feu. Ces actionneurs locaux comportent des interfaces qui reçoivent les ordres transmis sur chaque feu par l'armoire de contrôle au moyen d'une ligne de transmission unique indépendante de la ligne d'alimentation en puissance également unique pour le carrefour.French patent application FR-A-2-498.786 discloses a substantially silimar system. This system includes a control cabinet with central actuator, local actuators at each light. These local actuators have interfaces which receive the orders transmitted on each light by the control cabinet by means of a line of single transmission independent of the power supply line also unique for the crossroads.
L'évolution des normes et de la complexité des carrefours conduit à une augmentation du nombre et la longueur des interconnexions. Les armoires de commande en sont d'autant plus importantes, ce qui n'est pas sans inconvénient en milieu urbain, notamment sur un trottoir étroit. Egalement les liaisons filaires entre l'armoire de commande et les différents feux en sont d'autant plus complexes, et donc d'autant moins fiables et d'autant plus onéreuses.The evolution of standards and the complexity of crossroads leads to an increase in the number and length of interconnections. The control cabinets are all the more important, which is not without drawbacks in urban areas, especially on a narrow sidewalk. Also the wire connections between the control cabinet and the various lights are all the more complex, and therefore all the less reliable and all the more expensive.
La présente invention propose pour sa part un dispositif de commande pour feux de carrefours routiers d'un type nouveau, qui permet notamment de simplifier et fiabiliser les liaisons filaires installées sur un carrefour à feux, tout en restant conforme aux normes de sécurité en vigueur. Le dispositif proposé par l'invention permet également de réduire considérablement le dimensionnement des armoires.The present invention, for its part, provides a control device for road intersection lights of a new type, which in particular makes it possible to simplify and make reliable the wired links installed on a traffic intersection, while remaining compliant with the safety standards in force. The device proposed by the invention also makes it possible to considerably reduce the dimensioning of the cabinets.
La présente invention a donc pour objet un dispositif de commande et de synchronisation de plusieurs feux de régulation du trafic automobile routier, comportant une unité de gestion principale, ainsi que pour chacun desdits feux une unité secondaire alimentant celui-ci en puissance, ladite unité secondaire étant apte à dialoguer avec ladite unité de gestion par une liaison informatique et recevant notamment de ladite unité de gestion des ordres en fonction desquels ladite unité secondaire active la (ou les) lampe(s) du feu auquel elle est associée, caractérisé en ce que lesdites unités secondaires sont disposées respectivement chacune au niveau du feu auquel elles sont associées, un feu étant relié à l'unité de gestion au moins par la liaison informatique précitée entre ladite unité de gestion et son unité secondaire.The present invention therefore relates to a device for controlling and synchronizing several road traffic control lights, comprising a main management unit, as well as for each of said lights a secondary unit supplying the latter with power, said secondary unit being able to communicate with said management unit by a computer link and receiving in particular from said management unit orders according to which said secondary unit activates the lamp (s) of the fire with which it is associated, characterized in that said secondary units are each arranged respectively at the level of the light with which they are associated, a light being connected to the management unit at least by the aforementioned computer link between said management unit and its secondary unit.
Ce dispositif est avantageusement complété par les différentes caractéristiques suivantes prises seules ou selon leurs combinaisons techniquement possibles:This device is advantageously supplemented by the following different characteristics taken alone or according to their technically possible combinations:
- des unités secondaires et les feux auxquels elles sont associées sont reliées en série, au moins par une liaison informatique, à l'unité de gestion;- secondary units and the lights with which they are associated are connected in series, at least by a computer link, to the management unit;
- une unité secondaire comprend une carte de puissance recevant, d'une part, une alimentation d'une source qui lui est extérieure, et, d'autre part, de l'unité de gestion, par l'intermédiaire de la liaison informatique entre ladite unité secondaire et ladite unité de gestion, des ordres en fonction desquels ladite carte de puissance active les différentes lampes du feu associé à ladite unité secondaire;a secondary unit comprises a power card receiving, on the one hand, a power supply from a source which is external to it, and, on the other hand, from the management unit, via the computer link between said secondary unit and said management unit, orders according to which said power card activates the various lamps of the fire associated with said secondary unit;
- une carte de puissance renvoie sur l'unité de gestion, par l'intermédiaire de la susdite liaison informatique, des données relatives au fonctionnement des différentes lampes du feu auquel son unité secondaire est associée;- a power card sends back to the management unit, via the above computer link, data relating to the operation of the various lamps of the light with which its secondary unit is associated;
- une unité secondaire comprend également une carte à plusieurs entrées recevant de différents capteurs extérieurs des informations relatives au trafic automobile et/ou aux piétons, ladite carte à plusieurs entrées transmettant lesdites informations à ladite unité de gestion par l'intermédiaire de la liaison informatique précitée entre ladite unité de gestion et ladite unité secondaire;a secondary unit also comprises a card with several inputs receiving information relating to automobile traffic and / or pedestrians from different external sensors, said card with several inputs transmitting said information to said management unit via the abovementioned computer link between said management unit and said secondary unit;
- les unités secondaires sont alimentées en puissance par la source d'énergie qui alimente également l'unité de gestion; - chaque unité secondaire est alimentée en puissance par une source d'énergie qui lui est propre; - l'unité de gestion et/ou une unité secondaire comporte(nt) un dispositif d'alimentation stabilisée recevant en entrée une tension d'une source de tension externe et alimentant en sortie l'unité à laquelle il est associé; l'unité de gestion comprend une unité centrale à micro-processeur, ainsi qu'une carte gérant l'interface entre d'une part, ladite unité de gestion et, d'autre part, la (ou les) liaison(s) informatique(s) avec les unités secondaires;- the secondary units are supplied with power by the energy source which also supplies the management unit; - each secondary unit is supplied with power by its own energy source; - the management unit and / or a secondary unit comprises (s) a stabilized supply device receiving at input a voltage from an external voltage source and supplying at output the unit with which it is associated; the management unit comprises a central microprocessor unit, as well as a card managing the interface between on the one hand, said management unit and, on the other hand, the computer link (s) (s) with secondary units;
- l'unité de gestion comprend une mémoire vive non volatile à laquelle le micro-processeur est relié et contenant des données modifiables relatives à la commande et à la synchronisation des feux et des moyens permettant à un agent de maintenance la programmation sur site de ladite mémoire;the management unit comprises a non-volatile random access memory to which the microprocessor is connected and containing modifiable data relating to the control and synchronization of the lights and the means enabling a maintenance agent to program said site on site memory;
- l'unité de gestion est disposée dans une armoire de commande extérieure au feu dont toutes les dimensions sont inférieures à 400 mm;- the management unit is arranged in a control cabinet outside the fire, all the dimensions of which are less than 400 mm;
- l'unité de gestion est disposée à l'intérieur d'un des poteaux support de feux.- the management unit is placed inside one of the light support posts.
L'invention a encore pour objet un procédé de raccordement d'un nouveau feu à une l'unité de gestion de plusieurs feux déjà en place, d'un tel dispositif, notamment en cas d'extension d'un carrefour routier, ledit feu étant associé à une unité secondaire destinée à l'alimenter en puissance, caractérisé en ce que l'on prolonge notamment la liaison informatique entre une unité secondaire déjà reliée à ladite unité de gestion pour relier en série par ladite liaison informatique ladite unité secondaire et l'unité secondaire du nouveau feu à l'unité de gestion.The subject of the invention is also a method of connecting a new light to a management unit for several lights already in place, of such a device, in particular in the event of an extension of a road junction, said light. being associated with a secondary unit intended to supply it with power, characterized in that one extends in particular the computer link between a secondary unit already connected to said management unit to connect in series by said computer link said secondary unit and the secondary unit of the new fire to the management unit.
La description qui suit de plusieurs modes de réalisation particuliers de l'invention est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés, sur lesquels:The following description of several particular embodiments of the invention is purely illustrative and not limiting. It should be read in conjunction with the accompanying drawings, in which:
La Figure 1 illustre schématiquement le câblage entre un dispositif de commande conforme à l'art antérieur et les différents feux d'un carrefour routier.Figure 1 schematically illustrates the wiring between a control device according to the prior art and the various lights of a road junction.
La Figure 2 est un schéma synoptique du même dispositif de commande conforme à l'art antérieur.Figure 2 is a block diagram of the same control device according to the prior art.
La Figure 3 illustre schématiquement le câblage entre un dispositif de commande conforme à un premier mode de réalisation possible de l'invention et les différents feux d'un carrefour routier.Figure 3 schematically illustrates the wiring between a control device according to a first possible embodiment of the invention and the various lights of a road junction.
La Figure 4 est un schéma synoptique dudit dispositif de commande conforme audit premier mode de réalisation possible de l'invention.Figure 4 is a block diagram of said control device according to said first possible embodiment of the invention.
La Figure 5 illustre schématiquement le câblage entre un dispositif de commande conforme à un deuxième mode de réalisation possible de l'invention et les différents feux d'un carrefour routier. La Figure 6 est un schéma synoptique dudit dispositif de commande conforme audit second mode de réalisation possible de l'invention.Figure 5 schematically illustrates the wiring between a control device according to a second possible embodiment of the invention and the various lights of a road junction. Figure 6 is a block diagram of said control device according to said second possible embodiment of the invention.
La Figure 7 est une représentation par blocs de l'unité centrale d'un dispositif de commande conforme à l'invention.Figure 7 is a block representation of the central unit of a control device according to the invention.
La Figure 8 est une représentation par blocs de la carte interface entre l'unité centrale du même dispositif de commande et les différentes cartes de commande qui sont associées aux différents feux du carrefour.Figure 8 is a block representation of the interface card between the central unit of the same control device and the different control cards which are associated with the different traffic lights.
La Figure 9 est une représentation par blocs d'une carte puissance, associée à un feu particulier d'un carrefour, du même dispositif de commande.Figure 9 is a block representation of a power card, associated with a particular traffic light at a crossroads, of the same control device.
La Figure 10 est une représentation par blocs d'une carte à plusieurs entrées, pour la réception d' nformations extérieures au niveau d'un feu particulier d'un carrefour, du même dispositif de commande.Figure 10 is a block representation of a card with several inputs, for reception external information at a particular traffic light at a crossroads, from the same control device.
En se référant plus particulièrement à la Figure 1, on voit que dans l'état de la technique antérieure, les différents feux, référencés de FI à F4, d'un carrefour Cl, qui est par exemple le croisement de deux routes, sont commandés par un dispositif centralisé dans une armoire de commande Al. Cette armoire de commande Al est reliée, d'une part à une source d'énergie El et, d'autre part, respectivement par des câblages indépendants CB1 à CB4 aux différents feux FI et F4. Ces différents câblages CB1 à CB4 comportent principalement des fils d'alimentation pour les lampes rouge, orange et verte de chacun des feux tricolores FI à F4, ainsi que des fils reliés à des capteurs d'informations extérieures, tels que des boutons-poussoirs pour piétons et des détecteurs de véhicules (non représentés ) . Sur la Figure 2 a été représenté schématiquement l'ensemble de l'électronique de commande regroupée dans l'armoire Al et distribuée depuis cette armoire Al. Cette électronique de commande comprend principalement une unité centrale UC1 recevant en entrées une tension basse d'alimentation (+5 volts) que lui fournit un stabilisateur d'alimentation ASl, lui-même alimenté en tension alternative 110 volts ou 220 volts ou en tension continue 12 ou 24 volts par la source d'énergie El. En sortie, cette unité centrale UC1 dialogue, par l'intermédiaire d'une interface Cil, avec différentes unités secondaires Bl à B4 (seule B3 ayant été représentée) disposées dans l'armoire Al et alimentant par l'intermédiaire des câblages CB1 à CB4 les lampes à incandescence rouge, orange, verte du feu, tel que F3, auquel elles sont respectivement associées.Referring more particularly to FIG. 1, it can be seen that in the state of the prior art, the various lights, referenced from FI to F4, of a crossroad Cl, which is for example the crossing of two roads, are controlled by a centralized device in a control cabinet Al. This control cabinet Al is connected, on the one hand to an energy source El and, on the other hand, respectively by independent cabling CB1 to CB4 to the various lights FI and F4. These various cabling CB1 to CB4 mainly comprise supply wires for the red, orange and green lamps of each of the three-color lights FI to F4, as well as wires connected to external information sensors, such as push buttons for pedestrians and vehicle detectors (not shown). In Figure 2 has been shown schematically all of the control electronics grouped in the cabinet Al and distributed from this cabinet Al. This control electronics mainly comprises a central unit UC1 receiving as inputs a low supply voltage ( +5 volts) supplied by an ASl power supply stabilizer, itself supplied with 110 volts or 220 volts alternating voltage or 12 or 24 volts direct voltage by the energy source El. At the output, this central unit UC1 dialogues , via an interface C11, with different secondary units B1 to B4 (only B3 having been shown) arranged in the cabinet Al and supplying via the cables CB1 to CB4 the red, orange incandescent lamps, green of fire, such as F3, with which they are respectively associated.
On se réfère maintenant à la Figure 3. Le dispositif de commande et de synchronisation des feux Fil à F14 d'un carrefour C2, qui y est représenté et qui est conforme à un premier mode de réalisation possible de l'invention, comprend une électronique de gestion centralisatrice disposée dans une armoire de commande A2 et reliée informatiquement à des unités de commande secondaires Bll à B14 associées respectivement aux feux Fil à F14. L'armoire A2 est de beaucoup plus petites dimensions que les armoires habituelles (hauteur, largeur et longueur inférieures à 400 mm) . Chacune de ces unités de commande secondaires Bll à B14 commande et contrôle le fonctionnement des différentes lampes des feux Fil à F14 auxquels elles sont respectivement associées. Chacune de ces unités secondaires Bll à B14 est donc reliée filairement à chacune des lampes desdits feux Fil à F14. Chacune de ces unités est en outre également reliée filairement à différents capteurs extérieurs usuels (boutons-poussoirs pour piétons, détecteurs de véhicules, etc...) .Reference is now made to FIG. 3. The device for controlling and synchronizing the lights Fil to F14 of a crossroad C2, which is represented therein and which conforms to a first possible embodiment of the invention, comprises electronic centralizing management system located in an A2 control cabinet and linked by computer to secondary control units B11 to B14 associated respectively with the lights Fil to F14. The A2 cabinet is much smaller than the usual cabinets (height, width and length less than 400 mm). Each of these secondary control units B11 to B14 controls and controls the operation of the various lamps of the lights Fil to F14 with which they are respectively associated. Each of these secondary units B11 to B14 is therefore connected by wire to each of the lamps of said lights Fil to F14. Each of these units is also connected by wire to various usual external sensors (push buttons for pedestrians, vehicle detectors, etc.).
L'unité de commande secondaire Bll, qui est associée à celui des feux qui est à proximité de l'armoire de commande A2, est disposée dans ladite armoire de commande A2. Elle est reliée aux différentes lampes et capteurs du feu Fil par un câblage à fils multiples CB11. Une source d'énergie E21 alimente ladite armoire de commande A2 et l'unité secondaire Bll. Les autres unités secondaires B12 à B14 sont quant à elles disposées chacune au niveau des feux F12 à F14 auxquels elles sont associées. Elles sont alimentées chacune par une source d'énergie E22 à E24 indépendante et ne sont reliées à l'armoire de commande A2 que par une liaison informatique CB10 reliant en série les différentes unités de commandes secondaires Bll à B14 à l'unité de gestion principale centralisatrice. Cette liaison informatique en série CB10 est une liaison du type BUS et plus particulièrement du type bidirectionnel commercialisée par la société PHILIPS sous la dénomination commerciale BUS I2C (marque déposée) .The secondary control unit B11, which is associated with that of the lights which is close to the control cabinet A2, is arranged in said control cabinet A2. It is connected to the various Wire fire lamps and sensors by CB11 multi-wire wiring. An energy source E21 supplies said control cabinet A2 and the secondary unit B11. The other secondary units B12 to B14 are each arranged at the level of the lights F12 to F14 with which they are associated. They are each supplied by an independent energy source E22 to E24 and are not connected to the cabinet control A2 only by a computer link CB10 connecting in series the various secondary control units B11 to B14 to the main centralizing management unit. This computer link in series CB10 is a link of the BUS type and more particularly of the bidirectional type marketed by the company PHILIPS under the trade name BUS I2C (registered trademark).
En se référant maintenant à la Figure 4, sur laquelle a été représenté schématiquement par blocs l'ensemble de l'électronique de contrôle et de synchronisation du carrefour, on voit que celle-ci comprend principalement une unité de gestion centralisée disposée dans l'armoire A2 ainsi que, pour chacun des feux Fil à F14, une unité de commande secondaire Bll à B14 dont seule B13 a été illustrée . L'unité de gestion dans l'armoire A2 est constituée d'une unité centrale UC2 alimentée en +5 volts par un dispositif d'alimentation stabilisé AS2 recevant en entrée l'énergie E21. Cette unité centrale UC2 dialogue par l'intermédiaire d'une carte interface CI2 avec les différentes unités de commande Bll à B14 montées en série le long de la liaison informatique BUS CB10. Seule l'électronique B13 ayant été représentée sur cette Figure, on voit qu'une électronique de commande Bll à B14 comprend principalement une carte de puissance et une carte à entrées, référencées respectivement par CP23 et CE23 pour l'électronique B13. La carte de puissance CP23 délivre, au niveau du feu F13, en fonction des informations reçues de l'unité centrale UC2, l'alimentation des lampes dudit feu. La carte d'entrées CE23 reçoit quant à elle les appels en provenance des usagers au niveau du feu F13 (appel piéton, détecteur de voiture, etc...). Elle code les informations ainsi reçues et les renvoie sur l'unité centrale UC2. Les cartes CP23 et CE23 sont toutes deux alimentées en +5 volts par l'intermédiaire d'un dispositif d'alimentation stabilisé AS23 recevant en entrées l'énergie E23 d'alimentation au niveau du feu F13 (alternatif 220 volts ou 110 volts ou 24 volts; 12 volts continus). Les unités de commande Bll, B12 et B14 sont bien entendu identiques à l'unité B13.Referring now to Figure 4, on which has been represented schematically by blocks all of the control and synchronization electronics of the crossroads, we see that it mainly comprises a centralized management unit arranged in the cabinet A2 as well as, for each of the lights Fil to F14, a secondary control unit B11 to B14 of which only B13 has been illustrated. The management unit in the cabinet A2 consists of a central unit UC2 supplied with +5 volts by a stabilized supply device AS2 receiving the energy E21 as an input. This central unit UC2 dialogues via an interface card CI2 with the various control units B11 to B14 connected in series along the computer link BUS CB10. Only the electronics B13 having been shown in this Figure, it can be seen that a control electronics B11 to B14 mainly comprises a power card and an input card, referenced respectively by CP23 and CE23 for the electronics B13. The power card CP23 delivers, at the level of the light F13, as a function of the information received from the central unit UC2, the supply of the lamps of said light. The CE23 entry card receives calls from users at the F13 light (pedestrian call, car detector, etc.). It codes the information thus received and sends it back to the central unit UC2. The CP23 and CE23 cards are both supplied at +5 volts via an AS23 stabilized power supply device receiving input energy E23 at the F13 fire (alternative 220 volts or 110 volts or 24 volts; 12 continuous volts). The control units B11, B12 and B14 are of course identical to the unit B13.
Ainsi, les feux Fil à F14 munis chacun d'une unité de commande Bll à B14, sont considérés comme des "périphériques" de l'unité centrale UC2.Thus, the lights Fil to F14 each provided with a control unit B11 to B14, are considered as "peripherals" of the central unit UC2.
Une autre variante de réalisation de l'invention a encore été représentée sur les Figures 5 et 6 qui sont analogues respectivement aux Figures 3 et 4. Dans cette variante, les différents feux F21 et F24 d'un carrefour C3 sont également associés chacun à une unité de commande secondaire référencée respectivement par B21 à B24. Ces différentes unités B21 à B24 sont reliées en série par une liaison informatique CB20 du même type que la liaison CB10 à l'électronique centralisatrice du dispositif de commande et de synchronisation conforme à cette variante, qui est disposée dans une armoire de commande A3. L'ensemble du dispositif de ce carrefour C3 n'est alimenté que par une seule source d'énergie E3 au niveau de l'armoire de commande A3. Le câblage CB20 est doublé d'un câblage d'alimentation en énergie CB21.Another variant embodiment of the invention has also been shown in FIGS. 5 and 6 which are analogous respectively to FIGS. 3 and 4. In this variant, the various lights F21 and F24 of a crossroads C3 are also each associated with a secondary control unit referenced respectively by B21 to B24. These different units B21 to B24 are connected in series by a computer link CB20 of the same type as the link CB10 to the centralizing electronics of the control and synchronization device according to this variant, which is arranged in an A3 control cabinet. The entire device of this crossroads C3 is supplied only by a single energy source E3 at the level of the control cabinet A3. CB20 wiring is coupled with CB21 power supply wiring.
L'armoire A3 comprend de façon analogue à l'armoire A2 une unité centrale UC3 associée à une carte interface CI3 et à un dispositif stabilisateur d'alimentation AS3. De même, les unités de commande B21 à B24 comprennent, de façon analogue aux unités Bll à B14 , une carte puissance et une carte entrées associées à un stabilisateur d'alimentation, ces différents éléments étant référencés respectivement, pour l'électronique B23 qui seule a été représentée sur la Figure 5, CP33, CE33 et AS33. En entrée, ces dispositifs d'alimentation stabilisée, tel que le dispositif AS33, reçoivent une énergie dérivée de source d'énergie E3 à l'entrée du dispositif d'alimentation AS3 et transmise par le câblage CB21 précité.The cabinet A3 includes, similarly to the cabinet A2, a central unit UC3 associated with an interface card CI3 and with a power stabilizing device AS3. Similarly, the control units B21 to B24 include, analogously to the units B11 to B14, a power card and an input card associated with a power supply stabilizer, these different elements being referenced respectively, for the electronics B23 which alone has been represented in FIG. 5, CP33, CE33 and AS33. At the input, these stabilized power supply devices, such as the device AS33, receive energy derived from energy source E3 at the input of the power supply device AS3 and transmitted by the aforementioned wiring CB21.
On notera que le principe de câblage des feux en série par la liaison informatique seule, qui a été décrit dans le premier mode de réalisation proposé pour l'invention, sera plus particulièrement utilisé dans le cas d'une alimentatipn de faible tension (12 volts par exemple), puisqu'il supprime les pertes d'énergie dans les câbles.It will be noted that the principle of wiring the lights in series by the computer link alone, which has been described in the first embodiment proposed for the invention, will be more particularly used in the case of a low voltage power supply (12 volts for example), since it eliminates energy losses in cables.
Dans les deux modes de réalisation proposé, l'extension du carrefour n'impliquera plus la nécessité de tirer une nouvelle liaison à partir de l'armoire de commande. Pour l'installation d'un nouveau feu, il suffira , d'une part , de modifier la programmation de l'unité centrale et, d'autre part, de prolonger une liaison déjà existante et de monter l'unité secondaire associée à ce nouveau jeu, en série avec les unités secondaires déjà en place, de sorte que moins de travaux de Génie Civil seront nécessaires. Une extension de carrefour devrait être à l'origine de moins de nuisance pour les usagers.In the two embodiments proposed, the extension of the crossroads will no longer imply the need to draw a new link from the control cabinet. For the installation of a new light, it will be enough, on the one hand, to modify the programming of the central unit and, on the other hand, to extend an already existing connection and to mount the secondary unit associated with this new game, in series with the secondary units already in place, so that less Civil Engineering work will be necessary. An extension of the crossroads should cause less nuisance for users.
On a représenté sur la figure 7 , une unité centrale UC, telle que les unités centrales UC2 et UC3, d'un dispositif conforme à l'invention, comporte principalement un micro-processeur 1, 8 bits, cadencé à 6 Mhz associé à une mémoire de programme 2 du type EPROM, de 32 ou 64 Koctets. Le cadençage est fourni par un oscillateur 3. Ce microprocesseur 1 peut recevoir des instructions de programmation d'un opérateur éventuel agissant sur les boutons-poussoirs d'un ensemble 5 disposé au-niveau de l'armoire de commande A2. Cet opérateur aura la possibilité de visualiser et. de contrôler l'état des sorties, des entrées, des cycles, des sécurités et des défauts à partir d'un afficheur 4 du type à cristaux liquides (LCD) 16 caractères. Ce micro-processeur 1 dialogue également avec la carte interface CI à laquelle il est connecté par 1'intermédiaire de moyens de connexion 6, ainsi que par l'intermédiaire de moyens de connexion 7 avec un boîtier de commande permettant , par exemple à un agent dépêché sur place pour régler la circulation, d'intervenir ponctuellement s^ur le fonctionnement du feu. On a représenté sur la Figure 8 un schéma synoptique d'une carte interface CI telle que les cartes CI2 et CI3. Cette carte interface CI comprend une horloge 8 temps réel avec accumulateur de secours 9 associée à une mémoire de sauvegarde 10 de 256 octets mémorisant les défauts constatés de fonctionnement des feux. Cette carte CI comporte également une mémoire vive non volatile 11 de 256 octets contenant la programmation du carrefour et notamment les instructions de programmation fournies au micro-processeur, par un opérateur à partir de l'ensemble 5 de la figure 7 , ainsi qu'un générateur indépendant 12 à horloge délivrant un top chaque seconde et destiné à assurer le jaune clignotant de sécurité.Ces mémoires 10 et 11 sont reliées au microprocesseur 1 par l'intermédiaire d'un connecteur 6. Elles ont été disposées pour des facilités de construction dans la carte interface CI . Elles pourraient bien entendu être également disposées dans l'unité centrale UC. Cette carte interface CI est associée à deux connecteurs BUSI2C 13, 14 permettant de connecter jusqu'à 32 cartes entrées/sorties différentes sur ladite carte interface CI. Chacun de ces connecteurs 13 et 14 est relié dans la carte CI à un amplificateur de ligne respectivement 15, 16, lui- même relié à un commutateur générateur de sécurité/lignes BUSI2C, respectivement 17, 18. Un tel commutateur 17, 18 reçoit en entrée, d'une part la sortie de l'horloge 12 et, d'autre part, la sortie du microprocesseur 1, via le connecteur 6, par laquelle ledit microprocesseur 6 envoie des ordres sérialisés vers le BUS I2C et les unités de commande secondaires. On a représenté sur la Figure 9 un schéma synoptique d'une carte de puissance CP telle que CP23 ou CP33 utilisée pour les unités Bll à B14 et B21 à B24. Une telle carte de puissance CP comprend un connecteur 19 avec le bus I2C (référencé CB10 ou CB20 sur les figures 3-4 et 5-6 respectivement ) . Elle reçoit en entrée de celui-ci les ordres sérialisés transmis par le microprocesseur 1. Ce connecteur 19 est relié en sortie à un amplificateur de ligne 20 lui-même relié à un convertisseur 21 série/parallèle 8 bits assurant la serialisation et la désérialisation des données échangées entre le BUS I2C et les lampes du feu auquel il est associé. Ce convertisseur 21 envoie sur les organes de contrôle et de commutation puissance R et V des lampes rouge et verte des ordres de marche et d'arrêt et reçoit de ceux-ci les informations de contrôle de fonctionnement qu'il renvoie sur le BUS. Ce convertisseur 21 renvoie également sur les organes de contrôle et de commutation puissance J de la lampe jaune du feu, des ordres de marche/arrêt ou de commutation sur le jaune clignotant, par l'intermédiaire d'un ensemble de commutation (jaune clignotant sécurité) (marche-arrêt) 22. Le convertisseur 21 reçoit également de ces organes de contrôle J des informations concernant le fonctionnement de la lampe jaune qu'il retransmet au BUS 12C. Les organes de contrôle et de commutation puissance R.V.J. sont alimentés par une source d'énergie qui est, le cas échéant celle qui alimente le dispositif d'alimentation stabilisé en entrée de l'unité secondaire correspondante. Les organes de puissance sont à isolation galvanique et sont par exemple à TRIACS en alternatif 110 volts ou 220 volts, ou à MOSFETS en continu 12 ou 24 volts. Le contrôle est un contrôle en courant pour la lampe rouge et en tension pour les autres sorties.FIG. 7 shows a central processing unit UC, such as the central processing units UC2 and UC3, of a device according to the invention, mainly comprises a microprocessor 1, 8 bits, clocked at 6 MHz associated with a EPROM type 2 program memory, 32 or 64 Kbytes. The timing is provided by an oscillator 3. This microprocessor 1 can receive programming instructions from a possible operator acting on the pushbuttons of an assembly 5 arranged at the level of the control cabinet A2. This operator will be able to view and. to control the state of the outputs, inputs, cycles, safety devices and faults from a 16 character liquid crystal display (LCD) 4. This microprocessor 1 also dialogues with the interface card CI to which it is connected by means of connection means 6, as well as by means of connection means 7 with a control unit allowing, for example to an agent dispatched to regulate traffic, to intervene punctually s ^ ur operation of fire. FIG. 8 shows a block diagram of an interface card CI such as the cards CI2 and CI3. This interface card CI includes a real-time clock 8 with backup accumulator 9 associated with a backup memory 10 of 256 bytes memorizing the observed faults in the operation of the lights. This CI card also includes a non-volatile RAM 11 of 256 bytes containing the programming of the crossroads and in particular the programming instructions provided to the microprocessor, by an operator from the assembly 5 of FIG. 7, as well as a independent generator 12 with clock delivering a top every second and intended to ensure the flashing yellow of security. These memories 10 and 11 are connected to the microprocessor 1 via a connector 6. They have been arranged for ease of construction in the CI interface card. They could of course also be arranged in the central processing unit UC. This CI interface card is associated with two BUSI2C 13, 14 connectors allowing to connect up to 32 different input / output cards on said CI interface card. Each of these connectors 13 and 14 is connected in the IC card to a line amplifier respectively 15, 16, itself connected to a safety generator / BUSI2C switch, respectively 17, 18. Such a switch 17, 18 receives in input, on the one hand the output of the clock 12 and, on the other hand, the output of the microprocessor 1, via the connector 6, by which said microprocessor 6 sends serialized orders to the I2C BUS and the secondary control units . FIG. 9 shows a block diagram of a power card CP such as CP23 or CP33 used for units B11 to B14 and B21 to B24. Such a power card CP includes a connector 19 with the I2C bus (referenced CB10 or CB20 in Figures 3-4 and 5-6 respectively). It receives as input therefrom the serialized commands transmitted by the microprocessor 1. This connector 19 is connected at output to a line amplifier 20 itself connected to a converter 21 serial / parallel 8 bits ensuring the serialization and deserialization of data exchanged between the I2C BUS and the lamps of the light with which it is associated. This converter 21 sends on the R and V power control and switching members red and green lamps on and off orders and receives from these the operating control information which it sends back to the BUS. This converter 21 also sends back on / off or switching orders to the flashing yellow on the power control and switching members J of the yellow light lamp, by means of a switching assembly (safety flashing yellow ) (on-off) 22. The converter 21 also receives these control units J information concerning the operation of the yellow lamp which it transmits to BUS 12C. The RVJ power control and switching members are supplied by an energy source which is, if necessary, that which supplies the stabilized supply device at the input of the corresponding secondary unit. The power members are galvanically isolated and are for example TRIACS alternating 110 volts or 220 volts, or MOSFETS continuously 12 or 24 volts. The control is a current control for the red lamp and a voltage control for the other outputs.
Chaque carte puissance^ CP commande ainsi quatre sorties connectées aux lampes du feu (connecteur 23): rouge principal, rouge secondaire (répétiteur), jaune, vert.Each power card ^ CP thus controls four outputs connected to the fire lamps (connector 23): main red, secondary red (repeater), yellow, green.
Une carte CE telle que CE23 (figure 4) et CE33A CE card such as CE23 (figure 4) and CE33
(figure 6), à 8 entrées a été représentée sur la(figure 6), with 8 inputs has been represented on the
Figure 10. Elle comprend principalement un connecteur 24 réalisant la connexion avec la carte interface CI et le BUS I2C associés et un connecteur 25 recevant les entrées des différents capteurs extérieurs associés. Le connecteur 25 est relié à un ensemble 26 de 8 opto-coupleurs permettant de lire l'état des capteurs, lui-même relié à un convertisseur 27 parallèle/série 8 bits permettant de sérialiser les informations reçues du capteur pour les transmettre à la carte interface par la ligne de BUS. Entre le convertisseur 27 et le connecteur 24 est monté un amplificateur 28 du signal destiné à être transmis via le connecteur 24 par la ligne BUS I2C .Figure 10. It mainly comprises a connector 24 making the connection with the interface card CI and the associated I2C BUS and a connector 25 receiving the inputs of the various associated external sensors. The connector 25 is connected to a set 26 of 8 optocouplers making it possible to read the state of the sensors, itself connected to a converter 27 parallel / serial 8 bits making it possible to serialize the information received from the sensor to transmit it to the card BUS line interface. Between the converter 27 and the connector 24 is mounted an amplifier 28 of the signal intended to be transmitted via the connector 24 by the BUS I2C line.
L'automate qui vient d'être décrit peut être utilisé pour les carrefours permanents (généralement alimentés en 110 volts, 220 volts ou 24 volts alternatifs) ainsi que pour les carrefours temporaires, généralement alimentés par batterie. Le système modulaire proposé permet une adaptation facile aux différentes configurations possibles.The machine which has just been described can be used for permanent crossroads (generally supplied with 110 volts, 220 volts or 24 volts alternating) as well as for crossroads temporary, usually battery powered. The proposed modular system allows easy adaptation to the different possible configurations.
L'automate gère les séquences successives de fonctionnement d'un carrefour en tenant compte de la sécurité des usagers et en essayant d'adapter au maximum les cycles des feux au nombre de véhicules arrivant sur chaque voie.The automaton manages the successive operating sequences of a crossroads, taking into account the safety of users and trying to adapt light cycles as much as possible to the number of vehicles arriving on each lane.
L'automate accepte les modes de fonctionnement suivants:The PLC accepts the following operating modes:
- Extinction par sécurité- Safety shutdown
- Jaune clignotant de sécurité- Safety flashing yellow
- Initialisation ^- Initialization ^
- Jaune clignotant manuel - Tricolore manuel- Manual flashing yellow - Manual tricolor
- Tricolore automatique local- Local automatic tri-color
Il peut être connecté à des détecteurs de véhicules (type boucle magnétique insérée dans la chaussée ou radar) ou à des boutons d'appel piéton et permet de réaliser les modes suivants:It can be connected to vehicle detectors (type magnetic loop inserted in the roadway or radar) or to pedestrian call buttons and allows you to perform the following modes:
- Blocage sur une artère principale en 1'absence d'appels- Blockage on a main artery in the absence of calls
- Mémorisation d'appels- Call storage
- Prolongation de la durée d'une séquence en fonction des appels- Extension of the duration of a sequence according to the calls
- Contrôle du temps maximum de vert- Maximum green time control
- Contrôle du temps minimum de vert- Control of the minimum green time
- Contrôle de temps minimum de rouge- Minimum red time control
- Escamotage de séquences en l'absence d'appels - Aiguillage- Retraction of sequences in the absence of calls - Referral
- Modification des temps en fonction de plages horaires- Modification of times according to time slots
- Connexion d'un boîtier "agent"- Connection of an "agent" box
(automatique/manue1/jaune c1ignotant/rouge permanent) . Chaque feu peut être équipé de 1 à 4 lampes (d'une puissance pouvant aller jusqu'à 750 sous 220V ) contrôlées en permanence :(automatic / manual1 / yellow flashing / permanent red). Each light can be equipped with 1 to 4 lamps (with a power of up to 750 at 220V) permanently controlled:
Rouge principal (contrôlé en courant) Rouge secondaire : répétiteur/potence (contrôlé en tension)Main red (current controlled) Secondary red: repeater / stem (voltage controlled)
Jaune fixe du milieu (contrôlé en tension)Solid yellow in the middle (voltage controlled)
Jaune clignotant ou vert fixe du bas (contrôlé en tension) . 5 types de feu différents peuvent être utilisésFlashing yellow or solid green at the bottom (voltage controlled). 5 different types of fire can be used
Feux tricolores ( rouge fixe, jaune fixe [ 3 sec. ] , vert fixe ) ^ Tricolor lights (solid red, solid yellow [3 sec.], Solid green) ^
Feux tricolores ( rouge fixe, jaune fixe [ 5 sec. ], vert fixe )Traffic lights (solid red, solid yellow [5 sec.], Solid green)
Feux tricolores ( rouge fixe, jaune fixe [ 5 sec], jaune clignotant.)Traffic lights (solid red, solid yellow [5 sec], flashing yellow.)
Feux piétons (rouge fixe, vert clignotant, vert fixe) . Flèche directionnelle (jaune clignotant , extinction) .Pedestrian lights (solid red, flashing green, solid green). Directional arrow (flashing yellow, extinction).
Le carrefour passe en mode JCS (jaune clignotant de sécurité) dès que l'un des défauts ci- dessous apparaît (défauts majeurs): absence de rouge principal présence anormale de rouge, jaune ou vert antagonisme entre feux durée de vert insuffisant défaut de programmation erreur dans mémoire dérive de l'horloge.The crossroads goes into JCS mode (yellow flashing of security) as soon as one of the faults below appears (major faults): absence of main red abnormal presence of red, yellow or green antagonism between lights insufficient green duration programming fault error in memory derives from the clock.
Les autres défauts constatés (absence de rouge secondaire, jaune ou vert ) sont considérés comme défauts mineurs, sont mémorisés (mémoire 10) , et le carrefour passera au JCS lorsque plus de 9 défauts mineurs sont détectés simultanément .The other faults noted (absence of secondary red, yellow or green) are considered as minor faults, are memorized (memory 10), and the crossroads will pass to JCS when more than 9 faults minors are detected simultaneously.
La liaison informatique doit assurer une sécurité totale. Pour cela, chaque fois que l'unité centrale émet un message vers un périphérique, elle doit recevoir un acquittement positif. En l'absence de réponse, l'unité centrale doit arrêter tout dialogue et positionner l'ensemble de l'installation en mode sécurité.The computer link must ensure total security. To do this, each time the central unit sends a message to a peripheral, it must receive a positive acknowledgment. If there is no response, the central unit must stop all dialogue and place the entire installation in safety mode.
On notera qu'un avantage particulier du dispositif proposé par l'invention est de réduire considérablement le dimensionnement des armoires de commande, ce qui est une caractéristique à ne pas négliger en milieu urbain, ->. notamment sur trottoir étroit. D'autres modes de réalisation de l'invention sont bien entendu encore possibles. En particulier, la liaison informatique pourra être réalisée à partir d'autres technologies: liaison type réseau à fort débit, liaison par paire téléphonique, liaison par "courant porteur" (ce qui permettrait de n'utiliser qu'un seul câble à la fois pour véhiculer l'alimentation des unités de commande secondaires et les signaux échangés avec l'unité de commande principale) . L'utilisation de fibres optiques à la place de câbles pour la liaison informatique permettrait également d'augmenter considérablement l'immunité aux parasites et à la foudre. La possibilité de positionner l'alimentation au pied du feu permet d'envisager la création de carrefours alimentés par secteur et secourus par batteries, afin d'assurer un fonctionnement permanent même en cas de coupure secteur et d'améliorer ainsi la sécurité des usagers.It will be noted that a particular advantage of the device proposed by the invention is that it considerably reduces the size of the control cabinets, which is a characteristic not to be overlooked in an urban environment, ->. especially on a narrow sidewalk. Other embodiments of the invention are of course still possible. In particular, the computer link can be made using other technologies: high-speed network type link, telephone pair link, "carrier current" link (which would allow using only one cable at a time to convey the power to the secondary control units and the signals exchanged with the main control unit). The use of optical fibers instead of cables for the computer link would also considerably increase immunity to parasites and lightning. The possibility of positioning the power supply at the foot of the fire makes it possible to envisage the creation of intersections powered by sector and backed up by batteries, in order to ensure permanent operation even in the event of a power outage and thus improve user safety.
Egalement encore il pourrait être envisagé d'intégrer directement l'unité de gestion du dispositif au support du feu.Also again, it could be envisaged to directly integrate the management unit of the fire support device.
Les signes de référence insérés après les caractéristiques techniques mentionnées dans les revendications ont pour seul but de faciliter la compréhension de ces dernières et n'en limitent aucunement la portée. The reference signs inserted after the technical characteristics mentioned in the claims are intended only to facilitate the understanding of the latter and in no way limit their scope.

Claims

1 S1 S
REVENDICATIONS 1. Dispositif de commande et de synchronisation de plusieurs feux (Fil à F14, F21 à F24) de régulation du trafic automobile routier, comportant une unité de gestion (A2, A3) principale, ainsi que pour chacun desdits feux (Fil à F14, F21 à F 24) une unité secondaire (Bll à B14, B21 à B24) alimentant celui-ci en puissance, ladite unité (Bll à B14, B21 à B24) étant apte à dialoguer avec ladite unité de gestion (A2, A3) par une liaison informatique (CB10, CB20) et recevant notam- ment de ladite unité de gestion (A2, A3) des ordres en fonc¬ tion desquels ladite unité secondaire (Bll à B14, B21 à B24) active la (ou les) lampe(s) du feu (FL à F14, F21 à F24) au¬ quel elle est associée, lesdites unités secondaires (Bll à B14, B21 à B24) étant disposées respectivement chacune au ni- veau du feu (Fil à F14, F21 à F24) auquel elles sont asso¬ ciées, un feu (Fil à F14, F21 à F24) étant relié à l'unité de gestion (A2, A3) au moins par la liaison informatique précitée (CB10, CB20) entre ladite unité de gestion (A2, A3) et son unité secondaire (Bll à B14, B21 à B24), caractérisé en ce que ladite liaison informatique est une liaison bidirectionnelle par laquelle ladite unité secondaire renvoie des informations sur l'unité de gestion.CLAIMS 1. Device for controlling and synchronizing several lights (Wire to F14, F21 to F24) for regulating road motor traffic, comprising a main management unit (A2, A3), as well as for each of said lights (Wire to F14 , F21 to F 24) a secondary unit (Bll to B14, B21 to B24) supplying the latter with power, said unit (Bll to B14, B21 to B24) being able to communicate with said management unit (A2, A3) by a computer link (CB10, CB20) and receiving in particular from said management unit (A2, A3) orders according to which said secondary unit (Bll to B14, B21 to B24) activates the lamp (s) (s) of the light (FL to F14, F21 to F24) with which it is associated, said secondary units (B11 to B14, B21 to B24) each being arranged respectively at the level of the light (Wire to F14, F21 to F24) to which they are associated, a light (Wire to F14, F21 to F24) being connected to the management unit (A2, A3) at least by the link said computer (CB10, CB20) between said management unit (A2, A3) and its secondary unit (Bll to B14, B21 to B24), characterized in that said computer link is a bidirectional link by which said secondary unit returns information on the management unit.
2. Dispositif selon la revendication 1, caractérisé en ce qu'une unité secondaire (Bll à B14, B21 à B24) comprend une carte de puissance (CP23, CP33, CP) recevant, d'une part, une alimentation d'une source (E23, E33) qui lui est extérieure, et, d'autre part, de l'unité de gestion (A2, A3), par l'intermédiaire de la liaison informatique (CB10, CB20) entre ladite unité secondaire (Bll à B14, B21 à B24) et ladite unité de gestion (A2, A3), des ordres en fonction desquels ladite carte de puissance (CP23, CP33, CP) active les différentes lampes du feu (Fil à F14, F21 à F24) associées à ladite unité secondaire (Bll à B14, B21 à B24).2. Device according to claim 1, characterized in that a secondary unit (Bll to B14, B21 to B24) comprises a power card (CP23, CP33, CP) receiving, on the one hand, a power supply from a source (E23, E33) which is external to it, and, on the other hand, the management unit (A2, A3), via the computer link (CB10, CB20) between said secondary unit (Bll to B14 , B21 to B24) and said management unit (A2, A3), orders according to which said power card (CP23, CP33, CP) activates the various lamps of the fire (Wire to F14, F21 to F24) associated with said secondary unit (B11 to B14, B21 to B24).
3. Dispositif selon la revendication 2, caractérisé en ce qu'une carte de puissance (CP23, CP33, CP) renvoie sur l'unité de gestion (A2, A3), par l'intermédiaire de la susdite liaison informatique (CB10, CB20) , des données relatives au fonctionnement des différentes lampes du feu (Fil à F14, F21 à F24) auquel son unité secondaire (Bll à B14, B21 à B24) est associée.3. Device according to claim 2, characterized in that a power card (CP23, CP33, CP) returns to the management unit (A2, A3), by means of the aforesaid computer link (CB10, CB20), of the data relating to the operation of the various fire lamps (Wire to F14, F21 to F24) to which its secondary unit ( B11 to B14, B21 to B24) is associated.
4. Dispositif selon l'une des revendications 2 ou 3, caractérisé en ce qu'une unité secondaire (Bll à B14, B21 à B24) comprend également une carte à plusieurs entrées (CE23, CE33, CE) recevant de différents capteurs extérieurs des in- formations relatives au trafic automobile et/ou aux piétons, ladite carte à plusieurs entrées transmettant lesdites infor¬ mations à ladite unité de gestion (A2, A3) par l'intermédiaire de la liaison informatique (CB10ft CB20) précitée entre ladite unité de gestion (A2, A3) et ladite unité secondaire (Bll à B14, B21 à B 24) .4. Device according to one of claims 2 or 3, characterized in that a secondary unit (Bll to B14, B21 to B24) also comprises a card with several inputs (CE23, CE33, CE) receiving different external sensors from information relating to automobile traffic and / or pedestrians, said card with several inputs transmitting said information to said management unit (A2, A3) via the aforementioned computer link (CB10 ft CB20) between said unit management (A2, A3) and said secondary unit (B11 to B14, B21 to B 24).
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que des unités secondaires (Bll à B14, B21 à B24) et les feux (Fil à F14, F21 à F24) auxquels elles sont associées sont reliés en série, au moins par une liaison informatique (CB10, CB20), à l'unité de gestion (A2, A3) .5. Device according to any one of the preceding claims, characterized in that secondary units (B11 to B14, B21 to B24) and the lights (Wire to F14, F21 to F24) with which they are associated are connected in series, to less by a computer link (CB10, CB20), to the management unit (A2, A3).
6. Dispositif de commande selon l'une quelconque des revendications précédentes, caractérisé en ce que les unités secondaires (B21 à B24) sont alimentées en puissance par la source d'énergie qui alimente également l'unité de gestion (A3).6. Control device according to any one of the preceding claims, characterized in that the secondary units (B21 to B24) are supplied with power by the energy source which also supplies the management unit (A3).
7. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que chaque unité secondaire (Bll à B14) est alimentée en puissance par une source d'énergie (E21 à E24) qui lui est propre.7. Device according to any one of claims 1 to 5, characterized in that each secondary unit (B11 to B14) is supplied with power by an energy source (E21 to E24) which is specific to it.
8. Dispositif selon l'une des revendications 6 ou 7, caractérisé en ce que l'unité de gestion (A2, A3) et/ou une unité secondaire (Bll à B14, B21 à B24) comporte(nt) un dispositif d'alimentation stabilisée (AS2, AS23; AS3 AS33) recevant une entrée en tension alternative ou continue d'une source de tension externe et alimentant en sortie l'unité à laquelle il est associé.8. Device according to one of claims 6 or 7, characterized in that the management unit (A2, A3) and / or a secondary unit (Bll to B14, B21 to B24) comprises (s) a device for stabilized power supply (AS2, AS23; AS3 AS33) receiving an AC or DC voltage input from a external voltage source and outputting the unit with which it is associated.
9. Dispositif de commande selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de gestion (A2, A3) comprend une unité centrale (UC1, UC2 UC) à micro-processeur (1), ainsi qu'une carte (Cil, CI2, CI) appelée carte interface, gérant l'interface entre d'une part, ladite unité de gestion (A2, A3) et, d'autre part, la (ou les) liaison(s) informatique(s) (CB10, CB20) avec les unités secondaires (Bll à B14, B21 à B24) .9. Control device according to any one of the preceding claims, characterized in that the management unit (A2, A3) comprises a central unit (UC1, UC2 UC) with microprocessor (1), as well as a card (Cil, CI2, CI) called interface card, managing the interface between on the one hand, said management unit (A2, A3) and, on the other hand, the computer link (s) ) (CB10, CB20) with the secondary units (B11 to B14, B21 to B24).
10. Dispositif selon la revendication 9, caractérisé en ce que l'unité de gestion comprend des moyens (4, 5) permet¬ tant à un agent de maintenance la programmation sur site d'une mémoire vive non volatile (11) à laquelle le micro-processeur (1) est relié et contenant des données modifiables relatives à la commande et à la synchronisation des feux (Fil à F14, F21 à F24) .10. Device according to claim 9, characterized in that the management unit comprises means (4, 5) allowing a maintenance agent to program on site a non-volatile random access memory (11) to which the microprocessor (1) is connected and containing modifiable data relating to the control and synchronization of the lights (Wire to F14, F21 to F24).
11. Dispositif de commande selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de gestion est disposée dans une armoire de commande (A2, A3) extérieure au feu dont toutes les dimensions sont inférieures à 400 mm.11. Control device according to any one of the preceding claims, characterized in that the management unit is arranged in a control cabinet (A2, A3) outside the fire, all the dimensions of which are less than 400 mm.
12. Dispositif selon l'une quelconque des revendica¬ tions 1 à 10, caractérisé en ce que l'unité de gestion est disposée à l'intérieur d'un des poteaux supports de feux.12. Device according to any one of claims 1 to 10, characterized in that the management unit is arranged inside one of the light support posts.
13. Procédé de raccordement d'un nouveau feu à l'unité de gestion de plusieurs feux déjà en place, d'un dispositif conforme à l'une quelconque des revendications précédentes, notamment en cas d'extension d'un carrefour routier, ledit feu étant associé à une unité secondaire destinée à l'alimenter en puissance, caractérisé en ce que l'on prolonge notamment la liaison informatique entre une unité secondaire déjà reliée à ladite unité de gestion pour relier en série par ladite liai¬ son informatique ladite unité secondaire et l'unité secondaire du nouveau feu à l'unité de gestion. 13. Method of connecting a new light to the management unit of several lights already in place, of a device according to any one of the preceding claims, in particular in the event of an extension of a road junction, said fire being associated with a secondary unit intended to supply it with power, characterized in that one extends in particular the computer link between a secondary unit already connected to said management unit to connect in series by said computer link said unit secondary and the secondary unit of the new fire to the management unit.
PCT/FR1992/000454 1991-05-22 1992-05-21 Device for controlling and synchronising a plurality of road traffic lights WO1992021115A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR91/06182 1991-05-22
FR9106182A FR2676850B1 (en) 1991-05-22 1991-05-22 DEVICE FOR CONTROLLING AND SYNCHRONIZING MULTIPLE ROAD TRAFFIC CONTROL LIGHTS.

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Publication Number Publication Date
WO1992021115A1 true WO1992021115A1 (en) 1992-11-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743897A1 (en) * 2012-12-11 2014-06-18 Langmatz GmbH Pedestrian signal request system
WO2017059462A3 (en) * 2015-09-29 2017-06-01 Robolite (Pty) Limited Backup controller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498786A1 (en) * 1981-01-26 1982-07-30 Electronique Vehicules Reseaux Traffic light control system - uses single power supply cable with local interface containing microprocessor at each set of lights
EP0268060A1 (en) * 1986-10-10 1988-05-25 Siemens Aktiengesellschaft Traffic signalling system
GB2210719A (en) * 1987-10-05 1989-06-14 Gec Traffic Automation Traffic light switching system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498786A1 (en) * 1981-01-26 1982-07-30 Electronique Vehicules Reseaux Traffic light control system - uses single power supply cable with local interface containing microprocessor at each set of lights
EP0268060A1 (en) * 1986-10-10 1988-05-25 Siemens Aktiengesellschaft Traffic signalling system
GB2210719A (en) * 1987-10-05 1989-06-14 Gec Traffic Automation Traffic light switching system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743897A1 (en) * 2012-12-11 2014-06-18 Langmatz GmbH Pedestrian signal request system
WO2017059462A3 (en) * 2015-09-29 2017-06-01 Robolite (Pty) Limited Backup controller

Also Published As

Publication number Publication date
FR2676850A1 (en) 1992-11-27
FR2676850B1 (en) 1995-07-21

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