EP3028922B1 - Method for discriminating the presence of a railway vehicle on a block, method for calculating a safety interval and associated device - Google Patents

Method for discriminating the presence of a railway vehicle on a block, method for calculating a safety interval and associated device Download PDF

Info

Publication number
EP3028922B1
EP3028922B1 EP15197098.5A EP15197098A EP3028922B1 EP 3028922 B1 EP3028922 B1 EP 3028922B1 EP 15197098 A EP15197098 A EP 15197098A EP 3028922 B1 EP3028922 B1 EP 3028922B1
Authority
EP
European Patent Office
Prior art keywords
block
railway vehicle
ground
interval
computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15197098.5A
Other languages
German (de)
French (fr)
Other versions
EP3028922A1 (en
Inventor
Javier BALLESTEROS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Transport Technologies SAS
Original Assignee
Alstom Transport Technologies SAS
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 Alstom Transport Technologies SAS filed Critical Alstom Transport Technologies SAS
Publication of EP3028922A1 publication Critical patent/EP3028922A1/en
Application granted granted Critical
Publication of EP3028922B1 publication Critical patent/EP3028922B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/162—Devices for counting axles; Devices for counting vehicles characterised by the error correction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/40—Handling position reports or trackside vehicle data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/04—Automatic systems, e.g. controlled by train; Change-over to manual control

Definitions

  • the present invention relates to a method for calculating a safety interval based on a method of discriminating the presence of a railway vehicle on a block of a railway line.
  • the invention applies to the field of railway safety, in particular to automatic control systems for rail traffic.
  • Such systems are, for example, so-called “train-based communication management systems", or CBTC (Communication Based Train Control).
  • an on-board computer calculates a range of vehicle positions on the railway.
  • range of positions is meant, in the sense of the present invention, a segment of the railway on which the railway vehicle is located.
  • the onboard computer determines the position of the vehicle along the railway, for example from beacons arranged on the railway, and whose locations are known. More specifically, the on-board computer determines the position interval of the railway vehicle from the location of the last beacon encountered and the movement of the vehicle from the latter beacon (this displacement being for example measured by an odometer) and taking into account the length of the railway vehicle and the safety distances on both sides of the head and tail ends of the railway vehicle.
  • the position interval of the vehicle is then sent, for example by radio waves, to a central computer on the ground.
  • the ground computer is adapted to receive the position interval associated with each vehicle of a plurality of railway vehicles authorized to travel on the track considered.
  • the computer on the ground is furthermore able to receive information from so-called secondary detection devices associated with each block of the railway track, each secondary detection device being able to determine whether the corresponding block is occupied or vacant.
  • Busy means a block on which the railway vehicle is engaged at least partially.
  • the computer on the ground is capable of controlling the running or stopping of each vehicle according to the position interval of the vehicle considered, the position interval of each of the other vehicles, and the information received from the devices. secondary detection, as well as possibly other operating constraints.
  • a first option is to ignore small vehicles in the traffic management system. Such a choice obviously results in security problems.
  • a second option is to involve an operator to discriminate. Such an option therefore does not allow automatic operation of the rail network and is likely to generate safety problems in the event of non-compliance with the intervention procedures by the operator.
  • the object of the invention is therefore to propose a method for calculating a safety interval based on such a discrimination method.
  • the invention relates to a method for calculating a safety interval and a device according to the claims.
  • a railway vehicle 2 traveling on a railway line 4 is represented on the figure 1 .
  • the traffic on lane 4 is from left to right in the figures.
  • the discrimination of the position of the railway vehicle 2 is achieved by a discrimination device 5 comprising a ground component and an onboard component.
  • the railway line 4 is subdivided into a plurality of successive blocks 6.
  • Each block 6 is identified by an identifier, which is associated with the geographical position of the township.
  • the railway line 4 comprises a first block 6A, a second block 6B, a third block 6C and a fourth block 6D.
  • Track sensors are arranged along the track to detect the presence of a vehicle.
  • the sensors on the track are of the type of axle counters.
  • the railway 4 comprises a plurality of sensors 7.
  • a sensor 7 is disposed at the boundary between two adjacent blocks 6.
  • a first sensor 7A is disposed at the boundary between the cantons 6A and 6B
  • a second sensor 7B is disposed at the boundary between the blocks 6B and 6C
  • a third sensor 7C is disposed at the boundary between the blocks 6C and 6C. 6D.
  • Each sensor 7 is able to detect the passage of an axle of a railway vehicle at the boundary between the corresponding cantons 6.
  • a plurality of secondary detection devices 8 are arranged near the railway line 4.
  • Each block 6 is associated with a corresponding secondary detection device 8.
  • the cantons 6B, 6C and 6D are respectively associated with the secondary detection devices 8B, 8C and 8D.
  • Each secondary detection device 8 is connected to the two sensors 7 arranged at each end of the corresponding block 6, to receive information relating to the detection of the passage of an axle of a railway vehicle from the corresponding block 6 to an adjacent block , or from an adjacent township to the corresponding township 6.
  • the secondary detection device 8B is connected to the sensors 7A and 7B
  • the secondary detection device 8C is connected to the sensors 7B and 7C.
  • Each secondary detection device 8 is able to determine the number of axles present on the corresponding block 6. In particular, each secondary detection device 8 is able to determine the number of axles present in the corresponding block 6 from the information provided by each of the corresponding sensors 7. Each secondary detection device 8 is able to positively count an axle detected by the sensor 7 disposed at the boundary between the block 6 corresponding to said secondary detection device 8 and the block 6 situated upstream with respect to the direction of movement on the railway track. 4, which corresponds to the situation where the said axle engages on the block 6 corresponding to the secondary detection device 8.
  • each secondary detection device 8 is able to negatively count an axle detected by the sensor 7 disposed at the boundary between the block 6 corresponding to said secondary detection device 8 and the block 6 located downstream relative to the direction of travel on the track 4, which corresponds to the situation where said axle leaves the block 6 corresponding to said secondary detection device 8.
  • Each secondary detection device 8 is further connected to a computer on the ground 12, for example by a radio link. Each secondary detection device 8 transmits to the computer on the ground 12 information relating to the number of axles present on the corresponding block 6. In addition, each secondary detection device 8 is able to transmit to the computer on the ground 12 the identifier of the corresponding block 6.
  • a plurality of beacons 9 are arranged along the railway line 4.
  • the beacons 9 are arranged successively along the railway line 4, at predetermined geographical locations. For example, a tag 9 is placed in the center of each block 6.
  • Each tag 9 is identified by a unique tag identifier.
  • the railway vehicle 2 comprises at least one antenna associated with an on-board beacon sensor capable of detecting the presence of a beacon 9 when it is in the vicinity of the latter and of collecting information relating to this beacon 9 detected.
  • the beacon 9 is able to communicate its identifier to the beacon sensor of the railway vehicle 2.
  • the railway vehicle 2 also comprises instruments for measuring the movement, speed and / or acceleration of the railway vehicle 2.
  • the measuring instruments are, for example, odometers and / or accelerometers.
  • the rail vehicle 2 comprises an onboard computer 14.
  • the computer 14 comprises a memory comprising a table associating, with the identifier of each beacon 9 of the channel 4, the position of this beacon 9 along the railway line 4.
  • the measuring instruments and the beacon sensor are connected to the onboard computer 14.
  • the on-board computer 14 is able to calculate, on the basis of the information received from the measuring instruments and the beacon sensor, the position of the railway vehicle 2, as well as an interval of positions S 1 of the railway vehicle 2 .
  • the position of the railway vehicle 2 is given by the position of the front end of the railway vehicle 2, also called “front of the railway vehicle 2", and by the position of the rear end of the railway vehicle 2, also called “back of the railway vehicle 2 ". More specifically, the position of the railway vehicle 2 is the segment between the front of the railway vehicle 2 and the rear of the railway vehicle 2. This segment corresponding to the length of the railway vehicle 2.
  • the position interval S 1 corresponds to a segment extending between a front end A 1 and rear end Z 1 .
  • the length of the segment S 1 is greater than or equal to the length of the railway vehicle 2, to take account of location errors, for example due to the odometric system of the railway vehicle 2.
  • the railway vehicle 2 is thus always in the interval S 1 , or, in other words, the position of the railway vehicle 2 is always included in the position interval S 1 .
  • the front of the railway vehicle 2 and the front end A 1 of the interval S 1 are distant by a distance D A.
  • the rear of the railway vehicle 2 and the rear end Z 1 of the interval S 1 are distant by a distance D Z.
  • the distance D A is, for example, equal to the maximum distance that the rail vehicle 2 can travel forwards during a cycle of calculation of the interval S 1 by the onboard computer 14, given the current speed of the railway vehicle 2 and the maximum forward acceleration that can be achieved by said railway vehicle 2. In the example described below, the current speed is zero.
  • the distance D Z is for example equal to the maximum distance that the rail vehicle 2 can travel backwards during a calculation cycle of the interval S 1 by the onboard computer 14, given the current speed of the vehicle rail 2 and the maximum acceleration towards the rear that can reach said railway vehicle 2. In the example described below, the current speed is zero.
  • the onboard computer 14 is able to communicate with the computer on the ground 12.
  • the on-board computer 14 and the computer on the ground 12 are for example suitable for communicating with each other by radio waves.
  • the on-board computer 14 is capable of transmitting, to the computer on the ground 12, information relating to the number of axles of the railway vehicle 2. This information is loaded into the memory of the computer 14 during the composition of the railway vehicle 2 .
  • the on-board computer 14 is also capable of transmitting, to the computer on the ground 12, the last position interval S 1 of the railway vehicle 2 calculated by the onboard computer 14.
  • the onboard computer 14 is also suitable for transmitting, at its destination. of the computer on the ground 12, the last position of the railway vehicle 2 calculated by the on-board computer 14.
  • the computer on the ground 12 includes a memory (not shown) in which the identifier of each block 6 is associated with the geographical position of said block 6.
  • the computer on the ground 12 is able to calculate a position interval of the railway vehicle 2, called "secondary interval" S 2 , from the information received from the secondary detection devices 8.
  • the secondary interval S 2 corresponds to a front end segment A 2 and a rear end segment Z 2 .
  • the length of the secondary interval S 2 is greater than or equal to the length of the interval S 1 , so that the interval S 1 is always included in the interval secondary S 2 .
  • the front end A 2 of the secondary interval S 2 is in front of the railway vehicle 2, more precisely at a point of a block 6 which is the first vacant block before, that is to say from front of the railway vehicle 2, in the direction of travel of the railway vehicle 2.
  • the front end A 2 is at a distance L A from the boundary between the first vacant front block and the adjacent block occupied by the railway vehicle 2.
  • the distance L A is for example equal to the distance between the front of the railway vehicle 2 and the axle of the railway vehicle closest to the front of the railway vehicle, to which is added the distance that can travel the railway vehicle 2 at its maximum forward speed, during the maximum time required for the discrimination device 5 to detect the entry of an axle in a block 6.
  • the distance L A is greater than or equal to the distance D A.
  • the rear end Z 2 of the secondary interval S 2 is located behind the railway vehicle 2, more particularly at a point of a block which is the first vacant block 6 rearward, that is to say from the rear of the railway vehicle 2, in the opposite direction to the march of the railway vehicle 2.
  • the rear end Z 2 is at a distance L Z from the boundary between the first vacant rear block and the adjacent block which is occupied by the railway vehicle.
  • the distance L Z is for example equal to the distance between the rear of the railway vehicle 2 and the axle of the railway vehicle closest to the rear of the vehicle 2, to which is added to the distance that can travel the vehicle rail 2 at its maximum speed towards the rear, during the maximum time required for the discrimination device 5 to detect the entry of an axle into a block 6.
  • the distance L Z is greater than or equal to the distance D Z.
  • the locating device 5 is able to discriminate the presence of the railway vehicle 2 on the block 6 it occupies according to the data transmitted by the secondary detection devices 8 and by the on-board computer 14.
  • the operation of the locating device 5 will now be described. In particular, the operation of the locating device 5 when the railway vehicle 2 is at a standstill, for example at the end of a standby period, will be described.
  • the on-board computer 14 Throughout the process of discriminating the railway vehicle 2 on the cantons 6 of the railway line 4, the on-board computer 14 periodically transmits, to the computer on the ground 12, information relating to the total number of axles of said railway vehicle. 2. In addition, throughout said method, the on-board computer 14 periodically calculates the position interval S 1 and the position of the railway vehicle 2 and transmits them to the computer on the ground 12.
  • the railway vehicle 2 is stationary and occupies a single block 6B, that is to say that neither the front nor the rear of the railway vehicle 2 do not exceed the limits of the current block 6B.
  • adjacent blocks 6A and 6C are vacant.
  • the detection devices 8 send to the computer on the ground 12 information relating to the occupation of the cantons 6 of the railway track 4. More specifically, the detection devices 8 send the number of axles present on each of the cantons 6 correspondents.
  • townships 6A and 6C are vacant, that is, they are not occupied by any axles.
  • only the block 6B is occupied by at least one vehicle. In this case, four axles are present on the canton 6B.
  • the computer on the ground 12 identifies the vacant blocks and then calculates the position of the ends A 2 , Z 2 of the secondary interval S 2 .
  • the front end A 2 of the secondary interval S 2 is located on the block 6C at a distance L A from the boundary between the block 6B and the block 6C.
  • the rear end Z 2 of the secondary space S 2 is located on the block 6A at a distance L Z from the boundary between the block 6B and the block 6A.
  • the computer 12 on the ground affects the secondary interval S 2 at the position of the railway vehicle (s) present (s) on the canton 6B. Indeed, at this point in the process, the railway vehicle 2 is not yet discriminated. The number of vehicles present on the canton 6B is therefore not known.
  • the on-board computer 14 calculates the position of the railway vehicle 2, as well as the position interval S 1 .
  • the on-board computer 14 then transmits, to the computer on the ground 12, information relating to the position of the railway vehicle 2, as well as to the position interval S 1 .
  • the onboard computer 14 also transmits, to the computer on the ground 12, the number of axles of the railway vehicle 2, in this case four axles.
  • the computer on the ground 12 retains only the position interval S 1 and assigns it to the secondary interval S 2 for the regulation of the traffic on the railway line 4.
  • the computer on the ground 12 considers that the railway vehicle 2 is the only vehicle present on the canton 6B.
  • the computer on the ground 12 then emits a discrimination signal, for example to an operator or a rail traffic management system.
  • the railway vehicle 2 is then authorized to move automatically.
  • the railway vehicle 2 is stationary and occupies two adjacent blocks 6B and 6C.
  • the front of the railway vehicle 2 is in the canton 6C
  • the rear of the railway vehicle 2 is in the canton 6B.
  • Such an example corresponds to a degraded mode of operation.
  • the adjacent blocks 6A and 6D are vacant, the devices 8A and 8D respectively accounting for 0 axle on the associated block.
  • the detection devices 8 send to the computer on the ground 12 information relating to the occupation of the corresponding cantons 6 of the railway track 4. More specifically, the detection devices 8 send the number of axles present on each of the cantons 6 correspondents.
  • townships 6A and 6D are vacant, and townships 6B and 6C are occupied by at least one vehicle.
  • the secondary detection device 8B associated with the canton 6B, detects three axles present on the canton 6B.
  • the secondary detection device 8C associated with the block 6C detects an axle present on the block 6C.
  • the computer on the ground 12 identifies the vacant blocks and then calculates the position of the ends A 2 , Z 2 of the secondary interval S 2 .
  • the front end A 2 of the secondary interval S 2 is located on the block 6D at a distance L A from the boundary between the block 6C and the block 6D.
  • the rear end Z 2 of the secondary interval S 2 is located on the block 6A, at a distance L Z from the boundary between the block 6B and the block 6A.
  • the computer 12 on the ground affects the secondary interval S 2 at the position of the railway vehicle (s) present (s) on the blocks 6B and 6C. Indeed, at this moment of the process, the railway vehicle 2 is not yet discriminated. The number of vehicles present on the 6B and 6C cantons is therefore not known.
  • the on-board computer 14 calculates the position of the railway vehicle 2, as well as the position interval S 1 .
  • the on-board computer 14 then transmits, to the computer on the ground 12, information relating to the position of the railway vehicle 2, as well as to the position interval S 1 .
  • the front and the rear of the railway vehicle 2 being located in two separate blocks 6B, 6C, the ground computer 12 is not able to discriminate the railway vehicle 2.
  • an operator operates the railway vehicle 2 to advance along the railway line 4, until the front and the rear of the railway vehicle 2 are located in the same block 6, in this case the canton 6C.
  • the operator maneuvers at sight the railway vehicle 2.
  • the secondary detection device 8C associated with the canton 6C detects four axles present on the block 6C, while the secondary detection device 8B associated with the block 6B detects none.
  • the secondary detection device 8D associated with the 6D township also detects no axles on the 6D township.
  • the computer on the ground 12 then recalculates a new position of the ends A 2 , Z 2 of the secondary interval S 2 .
  • the front end A 2 of the secondary interval S 2 is located on the block 6D at a distance L A from the boundary between the block 6C and the block 6D.
  • the rear end Z 2 of the secondary interval S 2 is located on the block 6B at a distance L Z from the boundary between the block 6C and the block 6B.
  • the computer on the ground 12 is then able to discriminate the railway vehicle 2, similarly to the previous example.
  • the computer on the ground 12 compares the number of axles detected by the secondary detection device 8 associated with the current block 6C with the number of axles of the railway vehicle 2.
  • the secondary detection device 8C associated with the block 6C detects four axles present in the block 6C, while the secondary detection devices 8B, 8D associated with the blocks 6B, 6D, respectively, detect none.
  • the blocks 6B and 6D being vacant, and the number of axles detected by the secondary detection device 8 associated with the current block 6C being equal to the number of axles of the railway vehicle 2, that is to say four axles, l ground computer 12 determines that the railway vehicle 2 is the only vehicle occupying the block 6C.
  • the computer on the ground 12 retains only the position interval S 1 and assigns it to the secondary interval S 2 for the regulation of the traffic on the railway line 4.
  • the ground computer 12 considers that the railway vehicle 2 is the only vehicle present on the block 6C.
  • the computer on the ground 12 then emits a discrimination signal, for example to an operator or a rail traffic management system.
  • the railway vehicle 2 is then authorized to move automatically.
  • the secondary interval S 2 corresponds to a safety interval from the point of view of a rail traffic management system on the ground.
  • the construction of the secondary interval S 2 guarantees, with a high level of safety, for example level 4 of the SIL standard commonly used in the railway field, the absence of a vehicle in the cantons 6 which are not covered by the secondary interval S 2 .
  • each of the rail vehicles of the railway train transmits information relating to the number of axles of the corresponding railway vehicle destined for the computer on the ground 12.
  • a single on-board computer transmits information relating to the number of axles of the entire train transport to the computer on the ground 12.

Description

La présente invention concerne un procédé de calcul d'un intervalle de sécurité fondé sur un procédé de discrimination de la présence d'un véhicule ferroviaire sur un canton d'une voie ferrée.The present invention relates to a method for calculating a safety interval based on a method of discriminating the presence of a railway vehicle on a block of a railway line.

Par « discrimination de la présence d'un véhicule ferroviaire sur un canton», on entend, au sens de la présente invention, le fait de déterminer que ledit véhicule ferroviaire est le seul véhicule occupant ledit canton."Discrimination of the presence of a railway vehicle on a block" means, within the meaning of the present invention, to determine that said railway vehicle is the only vehicle occupying said block.

L'invention s'applique au domaine de la sécurité ferroviaire, en particulier aux systèmes de contrôle automatique du trafic ferroviaire. De tels systèmes sont, par exemple, des systèmes dits « de gestion des trains basée sur la communication », ou CBTC (de l'anglais « Communication Based Train Control »).The invention applies to the field of railway safety, in particular to automatic control systems for rail traffic. Such systems are, for example, so-called "train-based communication management systems", or CBTC (Communication Based Train Control).

Pour un véhicule ferroviaire circulant sur une voie ferrée, classiquement segmentée en une pluralité de cantons successifs, un calculateur embarqué à bord du véhicule calcule un intervalle de positions du véhicule sur la voie ferrée.For a rail vehicle traveling on a railway, conventionally segmented into a plurality of successive blocks, an on-board computer calculates a range of vehicle positions on the railway.

Par « intervalle de positions », on entend, au sens de la présente invention, un segment de la voie ferrée sur lequel le véhicule ferroviaire se trouve.By "range of positions" is meant, in the sense of the present invention, a segment of the railway on which the railway vehicle is located.

Le calculateur embarqué détermine la position du véhicule le long de la voie ferrée, à partir par exemple de balises disposées sur la voie ferrée, et dont les emplacements sont connus. Plus précisément, le calculateur embarqué détermine l'intervalle de positions du véhicule ferroviaire à partir de l'emplacement de la dernière balise rencontrée et du déplacement du véhicule à partir de cette dernière balise (ce déplacement étant par exemple mesuré par un odomètre) et en prenant en compte la longueur du véhicule ferroviaire et des distances de sécurité de part et d'autre des extrémités de tête et de queue du véhicule ferroviaire.The onboard computer determines the position of the vehicle along the railway, for example from beacons arranged on the railway, and whose locations are known. More specifically, the on-board computer determines the position interval of the railway vehicle from the location of the last beacon encountered and the movement of the vehicle from the latter beacon (this displacement being for example measured by an odometer) and taking into account the length of the railway vehicle and the safety distances on both sides of the head and tail ends of the railway vehicle.

L'intervalle de positions du véhicule est ensuite envoyé, par exemple par ondes radio, à un ordinateur central, au sol. L'ordinateur au sol est adapté pour recevoir l'intervalle de positions associé à chaque véhicule d'une pluralité de véhicules ferroviaires autorisés à circuler sur la voie considérée.The position interval of the vehicle is then sent, for example by radio waves, to a central computer on the ground. The ground computer is adapted to receive the position interval associated with each vehicle of a plurality of railway vehicles authorized to travel on the track considered.

L'ordinateur au sol est en outre propre à recevoir des informations en provenance de dispositifs de détection dits secondaires, associés à chaque canton de la voie ferrée, chaque dispositif de détection secondaire étant propre à déterminer si le canton correspondant est occupé ou vacant.The computer on the ground is furthermore able to receive information from so-called secondary detection devices associated with each block of the railway track, each secondary detection device being able to determine whether the corresponding block is occupied or vacant.

Par « occupé », on entend un canton sur lequel le véhicule ferroviaire est engagé au moins partiellement."Busy" means a block on which the railway vehicle is engaged at least partially.

L'ordinateur au sol est propre à commander la marche ou l'arrêt de chaque véhicule en fonction de l'intervalle de positions du véhicule considéré, de l'intervalle de positions de chacun des autres véhicules, et des informations reçues en provenance des dispositifs de détection secondaires, ainsi qu'éventuellement d'autres contraintes d'exploitation.The computer on the ground is capable of controlling the running or stopping of each vehicle according to the position interval of the vehicle considered, the position interval of each of the other vehicles, and the information received from the devices. secondary detection, as well as possibly other operating constraints.

Il est connu de réaliser la discrimination de la présence d'un véhicule ferroviaire sur un canton selon le procédé suivant :

  • l'intervalle de positions du véhicule est transmis à l'ordinateur central, au sol ;
  • pour le canton sur lequel se trouve intégralement le segment formant l'intervalle de positions, si la distance entre chaque extrémité du segment formant l'intervalle de positions du véhicule et le canton adjacent le plus proche est inférieure à la longueur du plus petit véhicule autorisé à se déplacer sur la voie ferrée, alors l'ordinateur au sol détermine que ledit véhicule ferroviaire est le seul véhicule occupant le canton considéré.
It is known to discriminate the presence of a railway vehicle on a block according to the following method:
  • the position interval of the vehicle is transmitted to the central computer on the ground;
  • for the block in which the segment forming the position range is wholly located, if the distance between each end of the segment forming the vehicle position range and the nearest adjacent block is less than the length of the smallest authorized vehicle to move on the railway, then the computer on the ground determines that said railway vehicle is the only vehicle occupying the township considered.

Un tel procédé est appelé « balayage » (« sweeping » en anglais).Such a process is called "sweeping".

Néanmoins, un tel procédé ne donne pas entière satisfaction.Nevertheless, such a method is not entirely satisfactory.

En effet, dans le cas où des véhicules de petite taille, tels que des véhicules de maintenance (dont la longueur est généralement de quelques mètres seulement), sont autorisés à circuler sur la voie ferrée, ce procédé ne permet généralement pas la discrimination de la présence d'un unique véhicule ferroviaire sur un canton, puisque la distance entre une extrémité de l'intervalle de positions dudit véhicule et le canton adjacent le plus proche est souvent supérieure à la longueur desdits véhicules de maintenance.In fact, in the case where small vehicles, such as maintenance vehicles (generally only a few meters long), are authorized to run on the railway, this method generally does not allow the discrimination of the vehicle. the presence of a single railway vehicle on a block, since the distance between one end of the range of positions of said vehicle and the nearest adjacent block is often greater than the length of said maintenance vehicles.

Dans un tel contexte, plusieurs options s'offrent à l'opérateur du réseau ferré.In such a context, several options are available to the operator of the rail network.

Une première option consiste à ignorer les véhicules de petite taille dans le système de gestion du trafic. Un tel choix se traduit évidemment par des problèmes de sécurité.A first option is to ignore small vehicles in the traffic management system. Such a choice obviously results in security problems.

Une deuxième option consiste à faire intervenir un opérateur pour réaliser la discrimination. Une telle option ne permet donc pas un fonctionnement automatique du réseau ferré et est susceptible de générer des problèmes de sécurité en cas du non-respect des procédures d'intervention par l'opérateur.A second option is to involve an operator to discriminate. Such an option therefore does not allow automatic operation of the rail network and is likely to generate safety problems in the event of non-compliance with the intervention procedures by the operator.

On connaît également, par le document WO 2014/048708 A2 un procédé de discrimination de la présence d'un véhicule ferroviaire sur un canton d'une voie ferré comportant les étapes de :

  • transmission, depuis un calculateur embarqué à bord du véhicule ferroviaire vers un ordinateur au sol, d'une information relative au nombre d'essieux du véhicule ferroviaire ;
  • transmission, au cours du temps, par des capteurs à la voie associés audit canton et à des cantons adjacents audit canton, vers un ordinateur au sol, d'une information relative au nombre d'essieux présents dans le canton correspondant ;
  • discrimination par l'ordinateur au sol de la présence dudit véhicule ferroviaire sur ledit canton si le nombre d'essieux présents sur ledit canton est égal au nombre d'essieux dudit véhicule ferroviaire, et si le nombre d'essieux présents sur chacun des cantons adjacents audit canton est nul.
It is also known from the document WO 2014/048708 A2 a method of discriminating the presence of a railway vehicle on a block of a railway track comprising the steps of:
  • transmission, from an on-board computer on board the railway vehicle to a computer on the ground, of information relating to the number of axles of the railway vehicle;
  • transmission, over time, by sensors to the track associated with said township and to townships adjacent to said township, to a computer on the ground, information relating to the number of axles present in the corresponding township;
  • discrimination by the ground-based computer of the presence of said railway vehicle on said block if the number of axles present on said block equals the number of axles of said railway vehicle, and if the number of axles present on each of the adjacent blocks audit canton is void.

Par un tel procédé, il est possible de déterminer sans ambiguïté que, si le nombre d'essieux présents sur le canton considéré est égal au nombre d'essieux dudit véhicule ferroviaire, et que si le nombre d'essieux présents sur chacun des cantons adjacents audit canton considéré est nul, alors ledit véhicule ferroviaire est bien le seul véhicule présent sur le canton considéré, et ce quelle que soit la longueur du plus petit véhicule autorisé à circuler sur le réseau ferré.By such a method, it is possible to determine without ambiguity that, if the number of axles present in the canton in question is equal to the number of axles of said railway vehicle, and if the number of axles present on each of the adjacent cantons the canton in question is null, then said railway vehicle is the only vehicle present in the canton in question, regardless of the length of the smallest vehicle authorized to circulate on the rail network.

En outre, un tel procédé est entièrement automatique et ne nécessite pas la présence d'un opérateur pour réalisation l'opération de discrimination de la présence dudit véhicule sur le canton considéré.In addition, such a method is entirely automatic and does not require the presence of an operator for carrying out the operation of discriminating the presence of said vehicle on the canton in question.

L'invention a alors pour but de proposer un procédé de calcul d'un intervalle de sécurité fondé sur un tel procédé de discrimination.The object of the invention is therefore to propose a method for calculating a safety interval based on such a discrimination method.

L'invention a pour objet un procédé de calcul d'un intervalle de sécurité et un dispositif conformes aux revendications.The invention relates to a method for calculating a safety interval and a device according to the claims.

L'invention sera mieux comprise à l'aide de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en se référant aux dessins annexés sur lesquels :

  • les figures 1 à 3 sont des représentations schématiques des étapes successives du procédé de discrimination avec une première situation initiale ; et
  • les figures 4 à 7 sont des représentations schématiques des étapes successives du procédé de discrimination avec une deuxième situation initiale différente de la première situation initiale.
The invention will be better understood with the aid of the description which follows, given solely by way of nonlimiting example and with reference to the appended drawings in which:
  • the Figures 1 to 3 are schematic representations of the successive steps of the discrimination method with a first initial situation; and
  • the Figures 4 to 7 are schematic representations of the successive stages of the discrimination process with a second initial situation different from the first initial situation.

Un véhicule ferroviaire 2 circulant sur une voie ferrée 4 est représenté sur la figure 1. Dans l'exemple, la circulation sur la voie 4 s'effectue de la gauche vers la droite sur les figures.A railway vehicle 2 traveling on a railway line 4 is represented on the figure 1 . In the example, the traffic on lane 4 is from left to right in the figures.

La discrimination de la position du véhicule ferroviaire 2 est réalisée par un dispositif de discrimination 5 comportant une composante au sol et une composante embarquée.The discrimination of the position of the railway vehicle 2 is achieved by a discrimination device 5 comprising a ground component and an onboard component.

Pour la composante au sol, la voie ferrée 4 est subdivisée en une pluralité de cantons 6 successifs. Chaque canton 6 est identifié par un identifiant, qui est associé à la position géographique du canton.For the ground component, the railway line 4 is subdivided into a plurality of successive blocks 6. Each block 6 is identified by an identifier, which is associated with the geographical position of the township.

Par exemple, la voie ferrée 4 comporte un premier canton 6A, un deuxième canton 6B, un troisième canton 6C et un quatrième canton 6D.For example, the railway line 4 comprises a first block 6A, a second block 6B, a third block 6C and a fourth block 6D.

Des capteurs à la voie sont disposés le long de la voie pour détecter la présence d'un véhicule. Les capteurs à la voie sont du type compteurs d'essieux.Track sensors are arranged along the track to detect the presence of a vehicle. The sensors on the track are of the type of axle counters.

Plus précisément, la voie ferré 4 comporte une pluralité de senseurs 7. Un senseur 7 est disposé à la frontière entre deux cantons 6 adjacents. Par exemple, un premier senseur 7A est disposé à la frontière entre les cantons 6A et 6B, un deuxième senseur 7B est disposé à la frontière entre les cantons 6B et 6C, et un troisième senseur 7C est disposé à la frontière entre les cantons 6C et 6D.More specifically, the railway 4 comprises a plurality of sensors 7. A sensor 7 is disposed at the boundary between two adjacent blocks 6. For example, a first sensor 7A is disposed at the boundary between the cantons 6A and 6B, a second sensor 7B is disposed at the boundary between the blocks 6B and 6C, and a third sensor 7C is disposed at the boundary between the blocks 6C and 6C. 6D.

Chaque senseur 7 est propre à détecter le passage d'un essieu d'un véhicule ferroviaire à la frontière entre les cantons 6 correspondants.Each sensor 7 is able to detect the passage of an axle of a railway vehicle at the boundary between the corresponding cantons 6.

En outre, une pluralité de dispositifs de détections secondaires 8 sont disposés à proximité de la voie ferrée 4.In addition, a plurality of secondary detection devices 8 are arranged near the railway line 4.

Chaque canton 6 est associé à un dispositif de détection secondaire 8 correspondant. En particulier, et comme cela apparaît sur les figures, les cantons 6B, 6C et 6D sont associés respectivement aux dispositifs de détection secondaires 8B, 8C et 8D.Each block 6 is associated with a corresponding secondary detection device 8. In particular, and as shown in the figures, the cantons 6B, 6C and 6D are respectively associated with the secondary detection devices 8B, 8C and 8D.

Chaque dispositif de détection secondaire 8 est relié aux deux senseurs 7 disposés à chacune des extrémités du canton 6 correspondant, pour recevoir une information relative à la détection du passage d'un essieu d'un véhicule ferroviaire depuis le canton 6 correspondant vers un canton adjacent, ou depuis un canton adjacent vers le canton 6 correspondant.Each secondary detection device 8 is connected to the two sensors 7 arranged at each end of the corresponding block 6, to receive information relating to the detection of the passage of an axle of a railway vehicle from the corresponding block 6 to an adjacent block , or from an adjacent township to the corresponding township 6.

Par exemple, le dispositif de détection secondaire 8B est relié aux senseurs 7A et 7B, et le dispositif de détection secondaire 8C est relié aux senseurs 7B et 7C.For example, the secondary detection device 8B is connected to the sensors 7A and 7B, and the secondary detection device 8C is connected to the sensors 7B and 7C.

Chaque dispositif de détection secondaire 8 est propre à déterminer le nombre d'essieux présents sur le canton 6 correspondant. En particulier, chaque dispositif de détection secondaire 8 est propre à déterminer le nombre d'essieux présents sur le canton 6 correspondant à partir des informations fournies par chacun des senseurs 7 correspondants. Chaque dispositif de détection secondaire 8 est propre à compter positivement un essieu détecté par le senseur 7 disposé à la frontière entre le canton 6 correspondant audit dispositif de détection secondaire 8 et le canton 6 situé en amont par rapport au sens de circulation sur la voie ferrée 4, ce qui correspond à la situation où le ledit essieu s'engage sur le canton 6 correspondant au dispositif de détection secondaire 8.Each secondary detection device 8 is able to determine the number of axles present on the corresponding block 6. In particular, each secondary detection device 8 is able to determine the number of axles present in the corresponding block 6 from the information provided by each of the corresponding sensors 7. Each secondary detection device 8 is able to positively count an axle detected by the sensor 7 disposed at the boundary between the block 6 corresponding to said secondary detection device 8 and the block 6 situated upstream with respect to the direction of movement on the railway track. 4, which corresponds to the situation where the said axle engages on the block 6 corresponding to the secondary detection device 8.

En outre, chaque dispositif de détection secondaire 8 est propre à compter négativement un essieu détecté par le senseur 7 disposé à la frontière entre le canton 6 correspondant audit dispositif de détection secondaire 8 et le canton 6 situé en aval par rapport au sens de circulation sur la voie ferrée 4, ce qui correspond à la situation où ledit essieu quitte le canton 6 correspondant audit dispositif de détection secondaire 8.In addition, each secondary detection device 8 is able to negatively count an axle detected by the sensor 7 disposed at the boundary between the block 6 corresponding to said secondary detection device 8 and the block 6 located downstream relative to the direction of travel on the track 4, which corresponds to the situation where said axle leaves the block 6 corresponding to said secondary detection device 8.

Chaque dispositif de détection secondaire 8 est en outre relié à un ordinateur au sol 12, par exemple par une liaison radioélectrique. Chaque dispositif de détection secondaire 8 transmet à l'ordinateur au sol 12 une information relative au nombre d'essieux présents sur le canton 6 correspondant. En outre, chaque dispositif de détection secondaire 8 est propre à transmettre à l'ordinateur au sol 12 l'identifiant du canton 6 correspondant.Each secondary detection device 8 is further connected to a computer on the ground 12, for example by a radio link. Each secondary detection device 8 transmits to the computer on the ground 12 information relating to the number of axles present on the corresponding block 6. In addition, each secondary detection device 8 is able to transmit to the computer on the ground 12 the identifier of the corresponding block 6.

Pour la composante embarquée, une pluralité de balises 9 sont disposées le long de la voie ferrée 4. Les balises 9 sont disposées successivement le long de la voie ferrée 4, à des emplacements géographiques prédéterminés. Par exemple une balise 9 est placée au centre de chaque canton 6. Chaque balise 9 est identifiée par un identifiant de balise unique.For the onboard component, a plurality of beacons 9 are arranged along the railway line 4. The beacons 9 are arranged successively along the railway line 4, at predetermined geographical locations. For example, a tag 9 is placed in the center of each block 6. Each tag 9 is identified by a unique tag identifier.

Le véhicule ferroviaire 2 comporte au moins une antenne associée à un capteur de balise embarqué propre à détecter la présence d'une balise 9 lorsqu'il se trouve à proximité de celle-ci et à capter des informations relatives à cette balise 9 détectée. De préférence, la balise 9 est propre à communiquer son identifiant au capteur de balise du véhicule ferroviaire 2.The railway vehicle 2 comprises at least one antenna associated with an on-board beacon sensor capable of detecting the presence of a beacon 9 when it is in the vicinity of the latter and of collecting information relating to this beacon 9 detected. Preferably, the beacon 9 is able to communicate its identifier to the beacon sensor of the railway vehicle 2.

Le véhicule ferroviaire 2 comporte également des instruments de mesure du déplacement, de la vitesse et/ou de l'accélération du véhicule ferroviaire 2. Les instruments de mesure sont par exemple des odomètres et/ou des accéléromètres.The railway vehicle 2 also comprises instruments for measuring the movement, speed and / or acceleration of the railway vehicle 2. The measuring instruments are, for example, odometers and / or accelerometers.

En outre, le véhicule ferroviaire 2 comporte un calculateur embarqué 14.In addition, the rail vehicle 2 comprises an onboard computer 14.

Le calculateur 14 comprend une mémoire comportant une table associant, à l'identifiant de chaque balise 9 de la voie 4, la position de cette balise 9 le long de la voie ferrée 4.The computer 14 comprises a memory comprising a table associating, with the identifier of each beacon 9 of the channel 4, the position of this beacon 9 along the railway line 4.

Les instruments de mesure et le capteur de balise sont reliés au calculateur embarqué 14.The measuring instruments and the beacon sensor are connected to the onboard computer 14.

De façon classique, le calculateur embarqué 14 est propre à calculer, à partir des informations reçues en provenance des instruments de mesure et du capteur de balise, la position du véhicule ferroviaire 2, ainsi qu'un intervalle de positions S1 du véhicule ferroviaire 2.In a conventional manner, the on-board computer 14 is able to calculate, on the basis of the information received from the measuring instruments and the beacon sensor, the position of the railway vehicle 2, as well as an interval of positions S 1 of the railway vehicle 2 .

La position du véhicule ferroviaire 2 est donnée par la position de l'extrémité avant du véhicule ferroviaire 2, encore appelée « avant du véhicule ferroviaire 2 », et par la position de l'extrémité arrière du véhicule ferroviaire 2, encore appelée « arrière du véhicule ferroviaire 2 ». Plus précisément, la position du véhicule ferroviaire 2 est le segment compris entre l'avant du véhicule ferroviaire 2 et l'arrière du véhicule ferroviaire 2. Ce segment correspondant à la longueur du véhicule ferroviaire 2.The position of the railway vehicle 2 is given by the position of the front end of the railway vehicle 2, also called "front of the railway vehicle 2", and by the position of the rear end of the railway vehicle 2, also called "back of the railway vehicle 2 ". More specifically, the position of the railway vehicle 2 is the segment between the front of the railway vehicle 2 and the rear of the railway vehicle 2. This segment corresponding to the length of the railway vehicle 2.

Comme illustré par la figure 2, l'intervalle de positions S1 correspond à un segment s'étendant entre une extrémité avant A1 et d'extrémité arrière Z1. La longueur du segment S1 est supérieure ou égale à la longueur du véhicule ferroviaire 2, pour tenir compte d'erreurs de localisation, par exemple dues au système odométrique du véhicule ferroviaire 2. Le véhicule ferroviaire 2 se trouve ainsi toujours dans l'intervalle S1, ou, dit autrement, la position du véhicule ferroviaire 2 est toujours comprise dans l'intervalle de positions S1.As illustrated by figure 2 , the position interval S 1 corresponds to a segment extending between a front end A 1 and rear end Z 1 . The length of the segment S 1 is greater than or equal to the length of the railway vehicle 2, to take account of location errors, for example due to the odometric system of the railway vehicle 2. The railway vehicle 2 is thus always in the interval S 1 , or, in other words, the position of the railway vehicle 2 is always included in the position interval S 1 .

L'avant du véhicule ferroviaire 2 et l'extrémité avant A1 de l'intervalle S1 sont distants d'une distance DA. En outre, l'arrière du véhicule ferroviaire 2 et l'extrémité arrière Z1 de l'intervalle S1 sont distants d'une distance DZ.The front of the railway vehicle 2 and the front end A 1 of the interval S 1 are distant by a distance D A. In addition, the rear of the railway vehicle 2 and the rear end Z 1 of the interval S 1 are distant by a distance D Z.

La distance DA est par exemple égale à la distance maximale que peut parcourir le véhicule ferroviaire 2 vers l'avant durant un cycle de calcul de l'intervalle S1 par le calculateur embarqué 14, étant donnée la vitesse courante du véhicule ferroviaire 2 et l'accélération maximale vers l'avant que peut atteindre ledit véhicule ferroviaire 2. Dans l'exemple décrit ci-dessous, la vitesse courante est nulle.The distance D A is, for example, equal to the maximum distance that the rail vehicle 2 can travel forwards during a cycle of calculation of the interval S 1 by the onboard computer 14, given the current speed of the railway vehicle 2 and the maximum forward acceleration that can be achieved by said railway vehicle 2. In the example described below, the current speed is zero.

En outre, la distance DZ est par exemple égale à la distance maximale que peut parcourir le véhicule ferroviaire 2 vers l'arrière durant un cycle de calcul de l'intervalle S1 par le calculateur embarqué 14, étant donnée la vitesse courante du véhicule ferroviaire 2 et l'accélération maximale vers l'arrière que peut atteindre ledit véhicule ferroviaire 2. Dans l'exemple décrit ci-dessous, la vitesse courante est nulle.In addition, the distance D Z is for example equal to the maximum distance that the rail vehicle 2 can travel backwards during a calculation cycle of the interval S 1 by the onboard computer 14, given the current speed of the vehicle rail 2 and the maximum acceleration towards the rear that can reach said railway vehicle 2. In the example described below, the current speed is zero.

Ainsi, entre deux cycles de calcul successifs, le véhicule ferroviaire 2 ne sort jamais de l'intervalle de positions S1.Thus, between two successive calculation cycles, the rail vehicle 2 never leaves the position interval S 1 .

Le calculateur embarqué 14 est propre à communiquer avec l'ordinateur au sol 12. Le calculateur embarqué 14 et l'ordinateur au sol 12 sont par exemple propres à communiquer entre eux par ondes radio.The onboard computer 14 is able to communicate with the computer on the ground 12. The on-board computer 14 and the computer on the ground 12 are for example suitable for communicating with each other by radio waves.

Le calculateur embarqué 14 est propre à émettre, à destination de l'ordinateur au sol 12, une information relative au nombre d'essieux du véhicule ferroviaire 2. Cette information est chargée dans la mémoire du calculateur 14 lors de la composition du véhicule ferroviaire 2.The on-board computer 14 is capable of transmitting, to the computer on the ground 12, information relating to the number of axles of the railway vehicle 2. This information is loaded into the memory of the computer 14 during the composition of the railway vehicle 2 .

Le calculateur embarqué 14 est également propre à émettre, à destination de l'ordinateur au sol 12, le dernier intervalle de positions S1 du véhicule ferroviaire 2 calculé par le calculateur embarqué 14. Le calculateur embarqué 14 est également propre à émettre, à destination de l'ordinateur au sol 12, la dernière position du véhicule ferroviaire 2 calculée par le calculateur embarqué 14.The on-board computer 14 is also capable of transmitting, to the computer on the ground 12, the last position interval S 1 of the railway vehicle 2 calculated by the onboard computer 14. The onboard computer 14 is also suitable for transmitting, at its destination. of the computer on the ground 12, the last position of the railway vehicle 2 calculated by the on-board computer 14.

L'ordinateur au sol 12 comporte une mémoire (non représentée) dans laquelle l'identifiant de chaque canton 6 est associé à la position géographique dudit canton 6.The computer on the ground 12 includes a memory (not shown) in which the identifier of each block 6 is associated with the geographical position of said block 6.

L'ordinateur au sol 12 est propre à calculer un intervalle de positions du véhicule ferroviaire 2, dit « intervalle secondaire » S2, à partir des informations reçues en provenance des dispositifs de détection secondaires 8.The computer on the ground 12 is able to calculate a position interval of the railway vehicle 2, called "secondary interval" S 2 , from the information received from the secondary detection devices 8.

Comme représenté sur la figure 1, l'intervalle secondaire S2 correspond à un segment d'extrémité avant A2 et d'extrémité arrière Z2. Par construction, et comme cela sera décrit par la suite, la longueur de l'intervalle secondaire S2 est supérieure ou égale à la longueur de l'intervalle S1, de sorte que l'intervalle S1 est toujours inclus dans l'intervalle secondaire S2.As shown on the figure 1 , the secondary interval S 2 corresponds to a front end segment A 2 and a rear end segment Z 2 . By construction, and as will be described later, the length of the secondary interval S 2 is greater than or equal to the length of the interval S 1 , so that the interval S 1 is always included in the interval secondary S 2 .

L'extrémité avant A2 de l'intervalle secondaire S2 se situe devant le véhicule ferroviaire 2, plus précisément en un point d'un canton 6 qui est le premier canton vacant avant, c'est-à-dire à partir de l'avant du véhicule ferroviaire 2, dans le sens de la marche du véhicule ferroviaire 2.The front end A 2 of the secondary interval S 2 is in front of the railway vehicle 2, more precisely at a point of a block 6 which is the first vacant block before, that is to say from front of the railway vehicle 2, in the direction of travel of the railway vehicle 2.

L'extrémité avant A2 se situe à une distance LA de la frontière entre ce premier canton vacant avant et le canton adjacent qui est occupé par le véhicule ferroviaire 2.The front end A 2 is at a distance L A from the boundary between the first vacant front block and the adjacent block occupied by the railway vehicle 2.

La distance LA est par exemple égale à la distance entre l'avant du véhicule ferroviaire 2 et l'essieu du véhicule ferroviaire le plus proche de l'avant du véhicule ferroviaire, à laquelle est additionnée la distance que peut parcourir le véhicule ferroviaire 2 à sa vitesse maximale vers l'avant, durant le temps maximal nécessaire au dispositif de discrimination 5 pour détecter l'entrée d'un essieu dans un canton 6. De préférence, la distance LA est supérieure ou égale à la distance DA.The distance L A is for example equal to the distance between the front of the railway vehicle 2 and the axle of the railway vehicle closest to the front of the railway vehicle, to which is added the distance that can travel the railway vehicle 2 at its maximum forward speed, during the maximum time required for the discrimination device 5 to detect the entry of an axle in a block 6. Preferably, the distance L A is greater than or equal to the distance D A.

L'extrémité arrière Z2 de l'intervalle secondaire S2 se situe derrière le véhicule ferroviaire 2, plus particulièrement en un point d'un canton qui est le premier canton 6 vacant arrière, c'est-à-dire à partir de l'arrière du véhicule ferroviaire 2, dans le sens opposé à ia marche du véhicule ferroviaire 2.The rear end Z 2 of the secondary interval S 2 is located behind the railway vehicle 2, more particularly at a point of a block which is the first vacant block 6 rearward, that is to say from the rear of the railway vehicle 2, in the opposite direction to the march of the railway vehicle 2.

L'extrémité arrière Z2 se situe à une distance LZ de la frontière entre ce premier canton vacant arrière et le canton adjacent qui est occupé par le véhicule ferroviaire.The rear end Z 2 is at a distance L Z from the boundary between the first vacant rear block and the adjacent block which is occupied by the railway vehicle.

En outre, la distance LZ est par exemple égale la distance entre l'arrière du véhicule ferroviaire 2 et l'essieu du véhicule ferroviaire le plus proche de l'arrière du véhicule 2, à laquelle est additionnée à la distance que peut parcourir le véhicule ferroviaire 2 à sa vitesse maximale vers l'arrière, durant le temps maximal nécessaire au dispositif de discrimination 5 pour détecter l'entrée d'un essieu dans un canton 6. De préférence, la distance LZ est supérieure ou égale à la distance DZ.In addition, the distance L Z is for example equal to the distance between the rear of the railway vehicle 2 and the axle of the railway vehicle closest to the rear of the vehicle 2, to which is added to the distance that can travel the vehicle rail 2 at its maximum speed towards the rear, during the maximum time required for the discrimination device 5 to detect the entry of an axle into a block 6. Preferably, the distance L Z is greater than or equal to the distance D Z.

Le dispositif de localisation 5 est propre à discriminer la présence du véhicule ferroviaire 2 sur le canton 6 qu'il occupe en fonction des données émises par les dispositifs de détection secondaires 8 et par le calculateur embarqué 14.The locating device 5 is able to discriminate the presence of the railway vehicle 2 on the block 6 it occupies according to the data transmitted by the secondary detection devices 8 and by the on-board computer 14.

Le fonctionnement du dispositif de localisation 5 va maintenant être décrit. En particulier, le fonctionnement du dispositif de localisation 5 lorsque le véhicule ferroviaire 2 est à l'arrêt, par exemple à l'issue d'une période de veille, va être décrit.The operation of the locating device 5 will now be described. In particular, the operation of the locating device 5 when the railway vehicle 2 is at a standstill, for example at the end of a standby period, will be described.

Tout au long du procédé de discrimination du véhicule ferroviaire 2 sur les cantons 6 de la voie ferrée 4, le calculateur embarqué 14 émet périodiquement, à destination de l'ordinateur au sol 12, des informations relatives au nombre total d'essieux dudit véhicule ferroviaire 2. En outre, tout au long dudit procédé, le calculateur embarqué 14 calcule périodiquement l'intervalle de positions S1 et la position du véhicule ferroviaire 2 et les transmet à l'ordinateur au sol 12.Throughout the process of discriminating the railway vehicle 2 on the cantons 6 of the railway line 4, the on-board computer 14 periodically transmits, to the computer on the ground 12, information relating to the total number of axles of said railway vehicle. 2. In addition, throughout said method, the on-board computer 14 periodically calculates the position interval S 1 and the position of the railway vehicle 2 and transmits them to the computer on the ground 12.

Selon un premier exemple, illustré par les figures 1 à 3, le véhicule ferroviaire 2 est immobile et occupe un unique canton 6B, c'est-à-dire que ni l'avant, ni l'arrière du véhicule ferroviaire 2 ne dépassent les limites du canton courant 6B. En outre, les cantons adjacents 6A et 6C sont vacants.According to a first example, illustrated by Figures 1 to 3 , the railway vehicle 2 is stationary and occupies a single block 6B, that is to say that neither the front nor the rear of the railway vehicle 2 do not exceed the limits of the current block 6B. In addition, adjacent blocks 6A and 6C are vacant.

Au cours d'une étape initiale du procédé de discrimination, illustrée par la figure 1, les dispositifs de détection 8 envoient à l'ordinateur au sol 12 des informations relatives à l'occupation des cantons 6 de la voie ferrée 4. Plus précisément, les dispositifs de détection 8 envoient le nombre d'essieux présents sur chacun des cantons 6 correspondants. Ici, les cantons 6A et 6C sont vacants, c'est-à-dire qu'ils ne sont occupés par aucun essieu. En outre, seul le canton 6B est occupé par au moins un véhicule. En l'occurrence, quatre essieux sont présents sur le canton 6B.During an initial stage of the discrimination process, illustrated by the figure 1 , the detection devices 8 send to the computer on the ground 12 information relating to the occupation of the cantons 6 of the railway track 4. More specifically, the detection devices 8 send the number of axles present on each of the cantons 6 correspondents. Here, townships 6A and 6C are vacant, that is, they are not occupied by any axles. In addition, only the block 6B is occupied by at least one vehicle. In this case, four axles are present on the canton 6B.

L'ordinateur au sol 12 identifie les cantons vacants et calcule alors la position des extrémités A2, Z2 de l'intervalle secondaire S2.The computer on the ground 12 identifies the vacant blocks and then calculates the position of the ends A 2 , Z 2 of the secondary interval S 2 .

L'extrémité avant A2 de l'intervalle secondaire S2 se situe sur le canton 6C, à une distance LA de la frontière entre le canton 6B et le canton 6C.The front end A 2 of the secondary interval S 2 is located on the block 6C at a distance L A from the boundary between the block 6B and the block 6C.

L'extrémité arrière Z2 de i'intervaiie secondaire S2 se situe sur le canton 6A, à une distance LZ de la frontière entre le canton 6B et le canton 6A.The rear end Z 2 of the secondary space S 2 is located on the block 6A at a distance L Z from the boundary between the block 6B and the block 6A.

Puis l'ordinateur au sol 12 affecte l'intervalle secondaire S2 à la position du ou des véhicule(s) ferroviaire(s) présent(s) sur le canton 6B. En effet, à ce moment du procédé, le véhicule ferroviaire 2 n'est pas encore discriminé. Le nombre de véhicules présents sur le canton 6B n'est donc pas connu.Then the computer 12 on the ground affects the secondary interval S 2 at the position of the railway vehicle (s) present (s) on the canton 6B. Indeed, at this point in the process, the railway vehicle 2 is not yet discriminated. The number of vehicles present on the canton 6B is therefore not known.

Au cours d'une étape suivante, illustrée par la figure 2, le calculateur embarqué 14 calcule la position du véhicule ferroviaire 2, ainsi que l'intervalle de positions S1. Le calculateur embarqué 14 transmet ensuite, à destination de l'ordinateur au sol 12, des informations relatives à la position du véhicule ferroviaire 2, ainsi qu'à l'intervalle de positions S1.In a next step, illustrated by the figure 2 , the on-board computer 14 calculates the position of the railway vehicle 2, as well as the position interval S 1 . The on-board computer 14 then transmits, to the computer on the ground 12, information relating to the position of the railway vehicle 2, as well as to the position interval S 1 .

Le calculateur embarqué 14 transmet en outre, à destination de l'ordinateur au sol 12, le nombre d'essieux du véhicule ferroviaire 2, en l'occurrence quatre essieux.The onboard computer 14 also transmits, to the computer on the ground 12, the number of axles of the railway vehicle 2, in this case four axles.

L'avant et l'arrière du véhicule ferroviaire 2, obtenus à partir de la position du véhicule ferroviaire 2 calculée par le calculateur embarqué 14, sont contenus dans le canton courant 6B ; en outre, le nombre d'essieux détectés par le dispositif de détection secondaire 8 associé au canton courant 6B est égal au nombre d'essieux du véhicule ferroviaire 2. Par conséquent, au cours d'une étape suivante, illustrée par la figure 3, l'ordinateur au sol 12 détermine que le véhicule ferroviaire 2 est l'unique véhicule occupant le canton 6B.The front and the rear of the railway vehicle 2, obtained from the position of the railway vehicle 2 calculated by the onboard computer 14, are contained in the current block 6B; in addition, the number of axles detected by the secondary detection device 8 associated with the current block 6B is equal to the number of axles of the railway vehicle 2. Consequently, during a following stage, illustrated by the figure 3 the ground computer 12 determines that the railway vehicle 2 is the only vehicle occupying the block 6B.

L'ordinateur au sol 12 conserve uniquement l'intervalle de positions S1 et l'affecte à l'intervalle secondaire S2 pour la régulation du trafic sur la voie ferrée 4.The computer on the ground 12 retains only the position interval S 1 and assigns it to the secondary interval S 2 for the regulation of the traffic on the railway line 4.

L'ordinateur au sol 12 considère que le véhicule ferroviaire 2 est le seul véhicule présent sur le canton 6B. L'ordinateur au sol 12 émet alors un signal de discrimination, par exemple à destination d'un opérateur ou d'un système de gestion du trafic ferroviaire.The computer on the ground 12 considers that the railway vehicle 2 is the only vehicle present on the canton 6B. The computer on the ground 12 then emits a discrimination signal, for example to an operator or a rail traffic management system.

Le véhicule ferroviaire 2 est alors autorisé à se déplacer de façon automatique.The railway vehicle 2 is then authorized to move automatically.

Selon un deuxième exemple, illustré par les figures 4 à 7, le véhicule ferroviaire 2 est immobile et occupe deux cantons adjacents 6B et 6C. En l'occurrence, l'avant du véhicule ferroviaire 2 se trouve dans le canton 6C, et l'arrière du véhicule ferroviaire 2 se trouve dans le canton 6B. Un tel exemple correspond à un mode dégradé de fonctionnement.In a second example, illustrated by the Figures 4 to 7 , the railway vehicle 2 is stationary and occupies two adjacent blocks 6B and 6C. In this case, the front of the railway vehicle 2 is in the canton 6C, and the rear of the railway vehicle 2 is in the canton 6B. Such an example corresponds to a degraded mode of operation.

En outre, les cantons adjacents 6A et 6D sont vacants, les dispositifs 8A et 8D comptabilisant respectivement 0 essieu sur le canton associé.In addition, the adjacent blocks 6A and 6D are vacant, the devices 8A and 8D respectively accounting for 0 axle on the associated block.

Au cours d'une étape initiale du procédé de discrimination, illustrée par la figure 4, les dispositifs de détection 8 envoient à l'ordinateur au sol 12 des informations relatives à l'occupation des cantons 6 correspondants de la voie ferrée 4. Plus précisément, les dispositifs de détection 8 envoient le nombre d'essieux présents sur chacun des cantons 6 correspondants. Ici, les cantons 6A et 6D sont vacants, et les cantons 6B et 6C sont occupés par au moins un véhicule. En l'occurrence, le dispositif de détection secondaire 8B, associé au canton 6B, détecte trois essieux présents sur le canton 6B. En outre, le dispositif de détection secondaire 8C associé au canton 6C détecte un essieu présent sur le canton 6C.During an initial stage of the discrimination process, illustrated by the figure 4 , the detection devices 8 send to the computer on the ground 12 information relating to the occupation of the corresponding cantons 6 of the railway track 4. More specifically, the detection devices 8 send the number of axles present on each of the cantons 6 correspondents. Here, townships 6A and 6D are vacant, and townships 6B and 6C are occupied by at least one vehicle. In this case, the secondary detection device 8B, associated with the canton 6B, detects three axles present on the canton 6B. In addition, the secondary detection device 8C associated with the block 6C detects an axle present on the block 6C.

L'ordinateur au sol 12 identifie les cantons vacants et calcule alors la position des extrémités A2, Z2 de l'intervalle secondaire S2.The computer on the ground 12 identifies the vacant blocks and then calculates the position of the ends A 2 , Z 2 of the secondary interval S 2 .

L'extrémité avant A2 de l'intervalle secondaire S2 se situe sur le canton 6D, à une distance LA de la frontière entre le canton 6C et le canton 6D.The front end A 2 of the secondary interval S 2 is located on the block 6D at a distance L A from the boundary between the block 6C and the block 6D.

L'extrémité arrière Z2 de l'intervalle secondaire S2 se situe sur le canton 6A, à une distance LZ de la frontière entre le canton 6B et le canton 6A.The rear end Z 2 of the secondary interval S 2 is located on the block 6A, at a distance L Z from the boundary between the block 6B and the block 6A.

Puis l'ordinateur au sol 12 affecte l'intervalle secondaire S2 à la position du ou des véhicule(s) ferroviaire(s) présent(s) sur les cantons 6B et 6C. En effet, à cet instant du procédé, le véhicule ferroviaire 2 n'est pas encore discriminé. Le nombre de véhicules présents sur les cantons 6B et 6C n'est donc pas connu.Then the computer 12 on the ground affects the secondary interval S 2 at the position of the railway vehicle (s) present (s) on the blocks 6B and 6C. Indeed, at this moment of the process, the railway vehicle 2 is not yet discriminated. The number of vehicles present on the 6B and 6C cantons is therefore not known.

Au cours d'une étape suivante, illustrée par la figure 5, le calculateur embarqué 14 calcule la position du véhicule ferroviaire 2, ainsi que l'intervalle de positions S1. Le calculateur embarqué 14 transmet ensuite, à destination de l'ordinateur au sol 12, des informations relatives à la position du véhicule ferroviaire 2, ainsi qu'à l'intervalle de positions S1.In a next step, illustrated by the figure 5 , the on-board computer 14 calculates the position of the railway vehicle 2, as well as the position interval S 1 . The on-board computer 14 then transmits, to the computer on the ground 12, information relating to the position of the railway vehicle 2, as well as to the position interval S 1 .

L'avant et l'arrière du véhicule ferroviaire 2 étant situés dans deux cantons distincts 6B, 6C, l'ordinateur au sol 12 n'est pas en mesure de discriminer le véhicule ferroviaire 2.The front and the rear of the railway vehicle 2 being located in two separate blocks 6B, 6C, the ground computer 12 is not able to discriminate the railway vehicle 2.

Ainsi, au cours d'une étape suivante, illustrée par la figure 6, un opérateur manoeuvre le véhicule ferroviaire 2 pour le faire progresser le long de la voie ferrée 4, jusqu'à ce que l'avant et l'arrière du véhicule ferroviaire 2 soient situés dans le même canton 6, en l'occurrence, le canton 6C. Par exemple, l'opérateur manoeuvre à vue le véhicule ferroviaire 2.So, in a next step, illustrated by the figure 6 , an operator operates the railway vehicle 2 to advance along the railway line 4, until the front and the rear of the railway vehicle 2 are located in the same block 6, in this case the canton 6C. For example, the operator maneuvers at sight the railway vehicle 2.

Lorsque la position du véhicule ferroviaire 2 est telle que l'avant et l'arrière du véhicule ferroviaire 2 se trouvent dans le même canton 6C, le dispositif de détection secondaire 8C associé au canton 6C détecte quatre essieux présents sur le canton 6C, tandis que le dispositif de détection secondaire 8B associé au canton 6B n'en détecte aucun. En outre, le dispositif de détection secondaire 8D associé au canton 6D ne détecte également aucun essieu sur le canton 6D.When the position of the railway vehicle 2 is such that the front and the rear of the railway vehicle 2 are in the same block 6C, the secondary detection device 8C associated with the canton 6C detects four axles present on the block 6C, while the secondary detection device 8B associated with the block 6B detects none. In addition, the secondary detection device 8D associated with the 6D township also detects no axles on the 6D township.

L'ordinateur au sol 12 recalcule alors une nouvelle position des extrémités A2, Z2 de l'intervalle secondaire S2.The computer on the ground 12 then recalculates a new position of the ends A 2 , Z 2 of the secondary interval S 2 .

L'extrémité avant A2 de l'intervalle secondaire S2 se situe sur le canton 6D, à une distance LA de la limite entre le canton 6C et le canton 6D.The front end A 2 of the secondary interval S 2 is located on the block 6D at a distance L A from the boundary between the block 6C and the block 6D.

L'extrémité arrière Z2 de l'intervalle secondaire S2 se situe sur le canton 6B, à une distance LZ de la limite entre le canton 6C et le canton 6B.The rear end Z 2 of the secondary interval S 2 is located on the block 6B at a distance L Z from the boundary between the block 6C and the block 6B.

L'ordinateur au sol 12 est alors en mesure de discriminer le véhicule ferroviaire 2, de manière analogue à l'exemple précédent.The computer on the ground 12 is then able to discriminate the railway vehicle 2, similarly to the previous example.

Plus précisément, au cours d'une étape suivante, illustrée par la figure 7, l'ordinateur au sol 12 compare le nombre d'essieux détectés par le dispositif de détection secondaire 8 associé au canton courant 6C avec le nombre d'essieux du véhicule ferroviaire 2.Specifically, in a next step, illustrated by the figure 7 , the computer on the ground 12 compares the number of axles detected by the secondary detection device 8 associated with the current block 6C with the number of axles of the railway vehicle 2.

Le dispositif de détection secondaire 8C associé au canton 6C détecte quatre essieux présents sur le canton 6C, tandis que les dispositifs de détection secondaire 8B, 8D associé aux cantons 6B, 6D respectivement n'en détectent aucun.The secondary detection device 8C associated with the block 6C detects four axles present in the block 6C, while the secondary detection devices 8B, 8D associated with the blocks 6B, 6D, respectively, detect none.

Les cantons 6B et 6D étant vacants, et le nombre d'essieux détectés par le dispositif de détection secondaire 8 associé au canton courant 6C étant égal au nombre d'essieux du véhicule ferroviaire 2, c'est-à-dire quatre essieux, l'ordinateur au sol 12 détermine que le véhicule ferroviaire 2 est l'unique véhicule occupant le canton 6C.The blocks 6B and 6D being vacant, and the number of axles detected by the secondary detection device 8 associated with the current block 6C being equal to the number of axles of the railway vehicle 2, that is to say four axles, l ground computer 12 determines that the railway vehicle 2 is the only vehicle occupying the block 6C.

L'ordinateur au sol 12 conserve uniquement l'intervalle de positions S1 et l'affecte à l'intervalle secondaire S2 pour la régulation du trafic sur la voie ferrée 4.The computer on the ground 12 retains only the position interval S 1 and assigns it to the secondary interval S 2 for the regulation of the traffic on the railway line 4.

L'ordinateur au sol 12 considère que le véhicule ferroviaire 2 est le seul véhicule présent sur le canton 6C. L'ordinateur au sol 12 émet alors un signal de discrimination, par exemple à destination d'un opérateur ou d'un système de gestion du trafic ferroviaire.The ground computer 12 considers that the railway vehicle 2 is the only vehicle present on the block 6C. The computer on the ground 12 then emits a discrimination signal, for example to an operator or a rail traffic management system.

Le véhicule ferroviaire 2 est alors autorisé à se déplacer de façon automatique.The railway vehicle 2 is then authorized to move automatically.

Au cours du fonctionnement du dispositif de discrimination 5, l'intervalle secondaire S2 correspond à un intervalle de sécurité du point de vue d'un système de gestion du trafic ferroviaire, au sol. La construction de l'intervalle secondaire S2 garantit, avec un niveau de sécurité élevé, par exemple le niveau 4 de la norme SIL communément utilisée dans le domaine ferroviaire, l'absence de véhicule dans les cantons 6 qui ne sont pas couverts par l'intervalle secondaire S2.During the operation of the discrimination device 5, the secondary interval S 2 corresponds to a safety interval from the point of view of a rail traffic management system on the ground. The construction of the secondary interval S 2 guarantees, with a high level of safety, for example level 4 of the SIL standard commonly used in the railway field, the absence of a vehicle in the cantons 6 which are not covered by the secondary interval S 2 .

Dans le cas d'un convoi ferroviaire composé d'au moins deux véhicules ferroviaires rattachés entre eux, le calculateur 14 embarqué à bord de chacun des véhicules ferroviaires du convoi ferroviaire transmet une information relative au nombre d'essieux du véhicule ferroviaire correspondant à destination de l'ordinateur au sol 12.In the case of a railway convoy consisting of at least two railway vehicles attached to each other, the computer 14 on board each of the rail vehicles of the railway train transmits information relating to the number of axles of the corresponding railway vehicle destined for the computer on the ground 12.

En variante, un seul calculateur embarqué transmet une information relative au nombre d'essieux de l'ensemble du convoi ferroviaire à destination de l'ordinateur au sol 12.As a variant, a single on-board computer transmits information relating to the number of axles of the entire train transport to the computer on the ground 12.

Claims (2)

  1. A method for computing a security interval (S2) around a vehicle circulating on a railway track (4), the safety interval (S2) being formed by a segment having a front end (A2) and a rear end (Z2), that uses a method for discriminating the presence of a railway vehicle (2) on a block (6B; 6C) of a railway track (4), characterized in that it includes the steps of:
    - transmitting, from a computer (14) on-board the railway vehicle (2) to a ground-based computer (12), a piece of information relative to the number of axles of the railway vehicle (2);
    - transmitting, over time, by sensors on the track (8B; 8C) associated with said block (6B; 6C) and with blocks (6A, 6C; 6B, 6D) adjacent to said block (6B; 6C), to a ground-based computer (12), a piece of information relating to the number of axles present in the corresponding block (6A, 6B, 6C, 6D);
    - discriminating with the ground-based computer (12) the presence of said railway vehicle (2) on said block (6C) if the number of axles present on said block (6B; 6C) is equal to the number of axles of said railway vehicle (2), and if the number of axles present on each of the blocks (6A, 6C; 6B, 6D) adjacent to said block (6B; 6C) is zero,
    And characterized in that it comprises the additional steps of:
    - identifying from among the block(s) (6B; 6B, 6C; 6C) occupied by the railway vehicle (2), a front occupied block (6B; 6C; 6C), which is the occupied block (6B; 6B, 6C; 6C) located the most downstream with respect to the direction of motion of the railway vehicle (2);
    - identifying, from among the block(s) (6B; 6B, 6C; 6C) occupied by the railway vehicle (2), a rear occupied block (6B; 6B; 6C), which is the occupied block (6B; 6B, 6C; 6C) located the most upstream with respect to the direction of motion of the railway vehicle (2);
    - identifying a front vacant block (6C; 6D; 6D), which is the vacant block (6) located downstream from the front occupied block (6B; 6C; 6C), adjacent to the front occupied block (6B; 6C; 6C);
    - identifying a rear vacant block (6A; 6A; 6B), which is the vacant block (6) located upstream from the rear occupied block (6B; 6B; 6C), adjacent to the rear occupied block (6B; 6B; 6C);
    - assigning to the front end (A2) of the safety interval (S2) of a point located on the front vacant block (6C; 6D; 6D) and which is found at a predetermined distance (LA) from the boundary between the front occupied block (6B; 6C; 6C) and the front vacant block (6C; 6D; 6D) ;
    - assigning to the rear end (Z2) of the safety interval (S2) a point located on the rear vacant block (6A; 6A; 6B) and which is found at a predetermined distance (LZ) from the boundary between the rear occupied block (6B; 6B; 6C) and the rear vacant block (6A; 6A; 6B) ;
    - transmitting from the on-board computer (14) to the ground-based computer (12), a piece of information relating to the position of the railway vehicle (2) and to an interval of positions (S1) of the railway vehicle (2), the position of the railway vehicle (2) being a segment comprised between the front and the rear of the railway vehicle (2), the interval of positions (S1) being a segment having a front end (A1) and a rear end (Z1), the position of the railway vehicle (2) being included in said interval of positions (S1) ;
    - if the front and the rear of the railway vehicle (2), obtained from the position of the railway vehicle (2), are comprised in the limits of a same block (6B; 6C), assigning with the ground-based computer (12) the interval of positions (S1) to the safety interval (S2);
    - otherwise retaining the computed safety interval (S2).
  2. A device (5) for discriminating the presence of a railway vehicle (2) on a block (6C) of a railway track (4), that includes:
    - a ground-based computer (12), able to apply the computing method according to claim 1 for computing a safety interval (S2);
    - a computer (14) onboard the railway vehicle (2), able to transmit over time, to the ground-based computer (12), a piece of information relating to the number of axles of the railway vehicle (2) ;
    - sensors on the track (8) associated with said block (6C) and with blocks (6B, 6D) adjacent to said block (6C), able to transmit over time to the ground-based computer (12), a piece of information relating to the number of axles present in the corresponding block (6B, 6C, 6D);
    the ground-based computer (12) being able to discriminate the presence of said railway vehicle (2) on said block (6C) if the number of axles present on the block (6C) is equal to the number of axles of the railway vehicle (2), and if the number of axles present on each of the blocks (6B, 6D) adjacent to said block (6C) is zero.
EP15197098.5A 2014-12-03 2015-11-30 Method for discriminating the presence of a railway vehicle on a block, method for calculating a safety interval and associated device Active EP3028922B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1461877A FR3029674A1 (en) 2014-12-03 2014-12-03 METHOD OF DISCRIMINATION OF THE PRESENCE OF A RAILWAY VEHICLE ON A CANTON, METHOD OF CALCULATING A SAFETY INTERVAL AND ASSOCIATED DEVICE

Publications (2)

Publication Number Publication Date
EP3028922A1 EP3028922A1 (en) 2016-06-08
EP3028922B1 true EP3028922B1 (en) 2018-01-10

Family

ID=52450450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15197098.5A Active EP3028922B1 (en) 2014-12-03 2015-11-30 Method for discriminating the presence of a railway vehicle on a block, method for calculating a safety interval and associated device

Country Status (8)

Country Link
EP (1) EP3028922B1 (en)
CN (1) CN105667543B (en)
BR (1) BR102015030231B1 (en)
CA (1) CA2913997C (en)
ES (1) ES2661126T3 (en)
FR (1) FR3029674A1 (en)
HK (1) HK1219254A1 (en)
SG (1) SG10201509889QA (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210427A1 (en) 2015-06-08 2016-12-08 Siemens Aktiengesellschaft Method and device for determining a driving license for a tracked vehicle
FR3070661B1 (en) * 2017-09-01 2021-10-29 Alstom Transp Tech METHOD OF CONTROL OF VEHICLE TRAFFIC IN A NETWORK
FR3075742B1 (en) * 2017-12-22 2020-01-10 Alstom Transport Technologies METHOD FOR RESETTING A ZONE CONTROLLER AND ASSOCIATED SYSTEM FOR AUTOMATIC TRAIN CONTROL
CN109664921B (en) * 2018-12-27 2020-09-04 交控科技股份有限公司 VBTC multi-vehicle tracking safety verification method and system based on trackside simulator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722899A1 (en) * 1997-05-29 1998-12-03 Siemens Ag Method for forming the security-relevant trust interval of a location solution
US6694231B1 (en) * 2002-08-08 2004-02-17 Bombardier Transportation Gmbh Train registry overlay system
EP1642800A1 (en) * 2004-09-29 2006-04-05 Alstom Belgium S.A. Method and system for determining the position of an object moving along a course
RU2382710C1 (en) * 2008-06-24 2010-02-27 Государственное образовательное учреждение высшего профессионального образования "Самарский государственный университет путей сообщения" (СамГУПС) Method for track section freeness control and device for its implementation
CN201362265Y (en) * 2009-03-09 2009-12-16 河南蓝信科技有限公司 Train FBG axle counting system
CN102101483A (en) * 2010-12-27 2011-06-22 深圳思量微系统有限公司 Sensor structure for monitoring track axle
JP6296673B2 (en) * 2011-09-30 2018-03-20 日本信号株式会社 Train control system ground equipment
CN202783251U (en) * 2012-08-24 2013-03-13 深圳市科安达轨道交通技术有限公司 System solving poor rail shunting circuit with axle counter
DE102012217591A1 (en) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Method and arrangement for monitoring a track section delimited by two axle counting sensor units

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105667543A (en) 2016-06-15
BR102015030231A2 (en) 2016-08-02
FR3029674A1 (en) 2016-06-10
CN105667543B (en) 2019-07-26
BR102015030231B1 (en) 2022-05-31
EP3028922A1 (en) 2016-06-08
SG10201509889QA (en) 2016-07-28
CA2913997A1 (en) 2016-06-03
HK1219254A1 (en) 2017-03-31
ES2661126T3 (en) 2018-03-27
CA2913997C (en) 2023-03-21

Similar Documents

Publication Publication Date Title
EP3028922B1 (en) Method for discriminating the presence of a railway vehicle on a block, method for calculating a safety interval and associated device
EP2219930B1 (en) Device for measuring the movement of a self-guided vehicle
EP2927089B1 (en) Method for computing an interval of positions for a railway vehicle along a railway track and corresponding device
EP3627270B1 (en) Electronic device for determining a trajectory of emergency stopping of an autonomous vehicle, associated vehicle and method
SE537598C2 (en) Method and system for organizing vehicle trains
EP2660121B1 (en) Method for securing the movement of a railway vehicle, and railway vehicle
EP2219931B1 (en) Device for measuring the movement of a self-guiding vehicle
US9354034B2 (en) Positive location system for a locomotive consist
EP3749561A1 (en) System and method for detecting a risk of collision between a motor vehicle and a secondary object located in the traffic lanes adjacent to said vehicle when changing lanes
JP2011250575A (en) Train control device
WO2021233912A1 (en) Method for calculating an instantaneous velocity vector of a rail vehicle and corresponding system
WO2015110670A1 (en) Railway vehicle, upstream and downstream railway vehicles, method for controlling the distance between a downstream railway vehicle and an upstream railway vehicle
EP1832493B1 (en) System and method of verifying the integrity of a train
JP2018055455A (en) Road traffic state estimating system and road traffic state estimating method
EP2804016B1 (en) Improved method for determining the position and/or the speed of a guided vehicle; related system
EP3792127A1 (en) Method for assisting the choice of positioning of a vehicle on a road comprising a plurality of lanes
FR3072634A1 (en) METHOD FOR ASSISTING THE DRIVING OF A MOTOR VEHICLE
EP3518067A1 (en) Electronic device and method for controlling the speed of an autonomous vehicle, associated computer program, autonomous vehicle and monitoring platform
EP3508395A1 (en) System and method for locating guided vehicles by axle count comparison
WO2018041978A1 (en) Device for determining a speed limit, on-board system comprising such a device, and method for determining a speed limit
FR3121411A1 (en) Lane change trajectory control method for autonomous vehicle.
EP2660122B1 (en) Method and system for securing a movement of a railway vehicle, controller to be installed on-board a railway vehicle and such a railway vehicle
FR3043974A1 (en) METHOD AND SYSTEM FOR ASSISTING THE CHANGE OF THE TRACK TRACK FOR A MOTOR VEHICLE
EP2834798B1 (en) Method and device for automatically acquiring and managing road disruptions
WO2016045703A1 (en) Method and device for determining the ground collision risk of an aircraft

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20161208

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1219254

Country of ref document: HK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B61L 1/16 20060101ALI20170710BHEP

Ipc: B61L 27/04 20060101ALN20170710BHEP

Ipc: B61L 25/02 20060101AFI20170710BHEP

INTG Intention to grant announced

Effective date: 20170810

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 962047

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015007438

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2661126

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20180327

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 962047

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180410

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180410

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180510

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180411

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015007438

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

26N No opposition filed

Effective date: 20181011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20151130

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180110

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20230125

Year of fee payment: 8

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230823

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231120

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231123

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231127

Year of fee payment: 9

Ref country code: SE

Payment date: 20231120

Year of fee payment: 9

Ref country code: IT

Payment date: 20231124

Year of fee payment: 9

Ref country code: FR

Payment date: 20231120

Year of fee payment: 9

Ref country code: DE

Payment date: 20231121

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240129

Year of fee payment: 9