EP2695808B1 - Indicateur de niveau d'attention requis - Google Patents

Indicateur de niveau d'attention requis Download PDF

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Publication number
EP2695808B1
EP2695808B1 EP12180164.1A EP12180164A EP2695808B1 EP 2695808 B1 EP2695808 B1 EP 2695808B1 EP 12180164 A EP12180164 A EP 12180164A EP 2695808 B1 EP2695808 B1 EP 2695808B1
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Prior art keywords
vessel
data
attentiveness
handling data
type
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EP12180164.1A
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German (de)
English (en)
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EP2695808A1 (fr
Inventor
Saad AZHAR
Nils Johansson
Elina Vartiainen
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ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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Priority to EP12180164.1A priority Critical patent/EP2695808B1/fr
Priority to NO12180164A priority patent/NO2695808T3/no
Priority to PCT/EP2013/064120 priority patent/WO2014023483A1/fr
Publication of EP2695808A1 publication Critical patent/EP2695808A1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G3/00—Traffic control systems for marine craft
    • G08G3/02—Anti-collision systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B49/00—Arrangements of nautical instruments or navigational aids

Definitions

  • the present invention relates to a method, attentiveness indicator device and computer program product for providing an indication of a level of attentiveness required for a user on a vessel.
  • Ships are furthermore often controlled via a bridge, from where the navigation takes place.
  • the bridge of the ship may be surrounded by windows for the crew of the ship to be able to visually observe the environment.
  • the ships of today are furthermore provided with control computers and user interface screens for visualizing information related to navigation, voyage and ship management systems, where it is possible to display alarm data.
  • JP 2011-2276091 does for instance relate to a bridge alarm device, where type or level of an alarm is to be generated for a monitored aspect.
  • Another important aspect on a bridge is the weather.
  • TW 201118764 discusses classifying ship escape criteria in four groups or levels. The document is directed towards determining the likelihood of avoiding a typhoon based on ship speed, typhoon severity and speed as well as distance between ship and typhoon.
  • JP 5-223585 discusses determining different alarm levels based on distance to an obstruction and sector-angle values. Alarms thus seem to be generated based on the direction of movement of a ship and the position of the obstruction.
  • a ship does often cover long distances and the amount of activity on the bridge may vary considerably.
  • the present invention addresses this situation.
  • the invention is therefore directed towards solving the problem of providing an improvement in relation to helping users of vessels to be attentive.
  • This object is according to a first aspect of the invention solved through a method of providing an indication of a level of attentiveness required for a user on a vessel, according to claim 1.
  • This object is according to a second aspect of the invention solved through a attentiveness indicator device providing an indication of a level of attentiveness required for a user on a vessel, according to claim 6.
  • This object is according to a third aspect of the invention achieved through computer program product for providing an indication of a level of attentiveness required for a user on a vessel, according to claim 10.
  • the present invention has a number of advantages. It gathers data from several different sources for providing one value indicative of required alertness. In this way the users are relieved from manually gathering and evaluating the data from the different sources.
  • the invention also allows the users to better prioritize the attentiveness they use when continuously surveying the environment. In this way it is possible to have a high degree of concentration when it is really necessary and a lower degree of concentration when it is not, which enables the users to be more focused when a high degree of attentiveness is actually required, for instance at the end of a shift.
  • Fig. 1 schematically shows a vessel exemplified by a ship 10.
  • the ship 10 shown in fig. 1 comprises a rudder 11, a propeller 12 as well as a radar 15.
  • the propeller 12 is also connected to an engine (not shown) in order to propel the ship forward or backward.
  • the ship 10 is also provided with a bridge 13, where various aspects of the ship 10 can be controlled.
  • the rudder 11, propeller 12, engine and radar 15 are examples of entities used in relation to the navigation or steering of the ship 10.
  • Fig. 2 schematically shows the bridge 13.
  • the bridge comprises three windows 14, 16 and 18, a first front window 14 facing the bow, a second starboard side window 16 and a third port side window 18.
  • the windows are thus placed on the bridge 13.
  • On the bridge there is also a bridge computer 20 with a display 22.
  • the bridge computer 20 is according to some variations of the invention used for forming an attentiveness indicator device.
  • On the display 22 there is shown an attentiveness level indicator 24, which will be described in more detail later. This may be shown as a symbol or icon in order to signal a level of attentiveness required by the personnel on the bridge. All the windows may face a view used in the control, which in the case of the bridge is the waters through which the ship is to move.
  • Fig. 3 shows a block schematic of a simplified control system 26 for controlling the ship.
  • the control system 26 is a computerized control system.
  • control system includes a number of work stations. In this example only one is shown, which is the above-mentioned bridge computer 20. It should however be realized that there may be several work stations for instance in other areas of the ship.
  • the bridge computer 20 is connected to a data bus B1.
  • the first control computer 28 may be involved with controlling navigation steering using the rudder and controlling direction and speed through controlling the propeller. For this reason it is connected to the engine 38 and to the rudder 11.
  • the forecasting computer 30 is a computer used for keeping track of the weather and receives weather forecast data from weather forecast services. The data may comprise weather forecasts such as forecasts of low pressure areas, their movements and their wind speeds. This computer 30 is therefore used for keeping track of weather changes and the movement of weather systems such as the movement of storms.
  • the tracking computer 32 is used for tracking other vessels and is therefore connected to the radar 15.
  • This computer 32 which may be part of an Automatic Identification (AIS) system, is thus used for keeping track of mobile objects in the environment.
  • the chart computer 34 comprises navigation charts of the waters through which the ship is to move. The chart computer 34 therefore keeps track of stationary objects or obstacles in the environment.
  • the chart computer 34 may also comprise route data, i.e. data defining a route that the ship is to take.
  • the sensor control computer 36 is provided for receiving sensor data such as position data, speed data and depth data of the vessel, i.e. how deep into the water the vessel runs.
  • sensor data such as position data, speed data and depth data of the vessel, i.e. how deep into the water the vessel runs.
  • other sensors may be provided, such a sensors sensing the condition or health of vital elements of the ship.
  • external indications computer 37 is provided for receiving external indications such as piracy indications and/or International Ship and Port Facility Security (ISPS) security indications.
  • ISPS International Ship and Port Facility Security
  • control computer involved in ship management, such as controlling ventilation and lights.
  • the bridge 13 of the ship is surrounded by the windows 14, 16 and 18 for the crew of the ship to be able to visually observe the environment of the ship.
  • the bridge may comprise a main bridge and possibly two wing bridges on the port and starboard sides in order to enable support to be given to the captain or navigator as he or she manoeuvres the ship in a harbour.
  • User interface screens for visualizing information related to navigation, voyage and ship management systems may be located around the bridge so that they are visible when a crew member is seated or standing next to a pilot chair/station. In this setting there may furthermore be meters above the windows. A crew member standing at the main bridge, can then also look at the meters to see different values related to velocity, pitch, etc.
  • the personnel at the bridge and/or in a control room may have 4 to 6 hour shifts. It is in this situation hard to keep the same amount of concentration the whole time. It is often not needed: However, it is hard for a user to know when it is time to be more concentrated and when it is possible to be more relaxed, i.e. relaxed while still having a sufficient attentiveness.
  • the people on watch are not allowed to play games or do something else to pass their time instead but have to be attentive in case an abnormal situation arises. The challenge, thus, is to keep the people on watch attentive and informed of possible abnormal situations that might occur.
  • the invention is provided for addressing at least some of these issues.
  • a method according to a first embodiment of the invention will now be described with reference being made also to fig. 4 .
  • the method according to this first embodiment simplifies for the users on the bridge to know when to be highly concentrated and when to be more relaxed.
  • the different computers 28 - 37 provide vessel handling data VHD of different types.
  • the first control computer 28 does for instance provide rudder data and engine data and the sensor computer 36 provides speed and position data.
  • the sensor computer 36 also provides data about the functioning of the ship, such as engine temperature and ventilation.
  • the tracking computer 32 provides data about other ships in the vicinity.
  • the external indications computer may in turn provide piracy warning data and ISPS alert level data.
  • the forecasting computer 30 may provide forecasting data about the weather and the chart provides information about obstacles in the area, such as reefs, sea depth.
  • time data such as time of day data, which may be provided by any of the computers, such as the chart computer 34 and sensor control computer 36.
  • the time of day data may also be provided by the bridge computer 20 forming the attentiveness indicator device.
  • vessel handling data VHD from these computers 28 - 37 is provided to the attentiveness indicator device 20 in relation to an area associated with the current position of the ship, which may be an area essentially in front of the ship in the direction of movement.
  • the area may in one embodiment be a circle that has a point touching the nose of the ship, with the nose pointing at the centre of the circle. It should however be realized that other types of geometrical figures may be used such as a triangle or an ellipse.
  • the ship may also be provided in the centre of the area.
  • the attentiveness indicator device 20 may thus obtain several types of vessel handling data VHD from the computers 28 - 37, step 44, for instance related to the above mentioned area.
  • Some of the vessel handling data VHD may here be environmental data, where the environmental data, which is data related to the exterior or environment of the vessel may be related to the above-mentioned area associated with the position of the vessel.
  • the environmental data received from the tracking computer 32 may comprise a count of the number of other ships in the area.
  • the environmental data from the chart computer 34 may comprise a count of the number of obstacles in the area as well as sea bed depth data and own course data, i.e. data about the course of the ship 10 and the environmental data from the forecasting computer 30 may comprise data of the weather conditions in the area.
  • Some of the vessel handling data may be internal vessel data, i.e. data related to the vessel itself.
  • Internal vessel data from the first control computer 28 may comprise engine speed and rudder position data and internal vessel data from the sensor control computer 36 may comprise position data, speed data, vessel depth data as well as the energy consumption.
  • the chart computer 34 may provide internal vessel data in the form of own course data, i.e. data about the course of the ship 10.
  • the position data which sets out the own position of the ship 10, may be used for determining the above-mentioned area.
  • the environmental data may furthermore also comprise piracy indications and ISPS alert level data from the external indications computer 37.
  • Yet another type of vessel handling data is time data, such as time of day and weekday. This data may be provided by the attentiveness indicator device 20 itself.
  • Some of the vessel handling data VHD may here be further processed by the attentiveness indicator device 20.
  • the further processing may more particularly involve comparing internal vessel data of one type and environmental data of the same or a corresponding type for obtaining aggregate vessel handling data.
  • One type of internal vessel data may for instance be the vessel depth and the corresponding type of environmental data would then be the sea bed depth.
  • the attentiveness indicator device 20 may for instance determine aggregate vessel handling data for this type of internal vessel data comprising the difference between the sea bed depth and vessel depth in the area.
  • Another type of internal vessel handling data may be the own course and the corresponding type of environmental data would then be surrounding vessel courses.
  • the tracking computer 32 determines the courses of the other vessels and these courses may thus be compared with the own course.
  • the attentiveness indicator device 20 may for instance determine the aggregate vessel handling data as a count of the number of courses that cross the own course. It is also possible to determine if there is a deviation from the own course, which deviation is ideally zero. It is furthermore possible to determine the trim of the vessel.
  • the time of day data may also be further processed, such that one value is provided for a time when there is night and another when the time is in the day, with values in-between being provided for dusk and dawn.
  • All different types of vessel handling data VHD may then be normalised by the attentiveness indicator device, step 46, so that they have the same value range, for instance between zero and one.
  • Data that is deemed more important may also be weighted, step 48.
  • the attentiveness indicator device 20 may thus weight the vessel handling data in dependence of importance, where the weighting depending on importance may comprise providing a higher weight to data relating to safety than other data.
  • the piracy warning may for instance be given a higher weight than the energy consumption data. It is also possible that the course intersection count and a collision risk estimation are given a high priority.
  • the vessel handling data VHD is then combined by the attentiveness handling device 20 and in this case the normalized and weighted data are added in order to form or obtain an attentiveness value AV, step 50.
  • a sum of the possibly normalized and weighted different types of data may thus be obtained. It should here be realized that it is possible with other types of combinations, such as logical combinations, like AND or OR operations.
  • the attentiveness value AV is then compared with a number of thresholds comprising at least one threshold in order to obtain a level of attentiveness that is required, step 52.
  • An attentiveness level AL is thereafter assigned to attentiveness value AV based on the comparison, step 54.
  • the thresholds may comprise at least one threshold and in a first example there are three thresholds, while in a second example there are four thresholds.
  • the levels L1, L2, L3, L4 and L5 can be discreet numbers, such as one, two, three, four and five. However they may also be letters such as A, B, C and D.
  • a first level L1 is assigned, while if it is above the first threshold but below a second threshold then a second level L2 is assigned. Is the value instead above the second threshold, but below a third threshold, then a third level L3 may be assigned, while if the value is above the third threshold but below a fourth threshold then a fourth level L4 may be assigned. If finally the value is above the forth threshold then a fifth level L5 may be assigned.
  • the assigned attentiveness level is then presented to the users on the bridge 13 in order to provide an indication of the attentiveness required, step 56.
  • the possible levels can be graphically presented in various ways.
  • the levels may for instance be presented in a pyramid 24A, with the assigned level being highlighted, such as is indicated in fig. 5 .
  • the levels may also be presented in vertical stack 24B as is indicated in fig. 6 . They may also be shown in a horizontal row 24C as is indicated in fig. 24C. It can in fig. 5, 6 and 7 be seen the assigned attentiveness level is exemplified by the second level L2.
  • the attentiveness level AL can be presented for the users on the bridge 13 via the display 22 and in this way it is possible for the personnel on the bridge to better prioritize the attentiveness they used when continuously surveying the environment. In this way it is possible to have a high degree of concentration when it is really necessary and lower degree of concentration when it is not, which enables the users to be more focused when a high degree of attentiveness is actually required, which may be at the end of a shift.
  • the attentiveness indicator device may be implemented using software. It may thus be implemented using computer program code, which may be provided on one or more data carriers which performs the functionality of the attentiveness indicator device when the program code thereon is being loaded into the bridge computer.
  • One such data carrier 58 with computer program code 60, in the form of a CD ROM disc, is schematically shown in fig. 8 .
  • Such computer program may as an alternative be provided on another server and downloaded therefrom into the bridge computer.
  • the attentiveness is linked to one type vessel handling data, for instance to the speed.
  • the speed may be used to weight a number of the data types differently.
  • at least some weights depend on the speed of the vessel.
  • the sea level depth receives a weight which is higher because of a higher speed.
  • the count of other vessels in the area the count of obstacles may also receive a weight that is higher because of a higher speed.
  • Another possible piece of vessel handling data that may be used in this way is the time of day. At least some weights May thus depend on the time of day. One weight may be used during the day, another higher weight at night and a range of weights in-between at dusk and at dawn. The weights may also here be provided for selected types of vessel handling data.
  • the time of day weighting may also be combined with speed weighting.
  • the vessel handling data may thus comprise predicted vessel handling data and the obtaining, weighting in dependence of importance and comparing is then performed for obtaining a predicted attentiveness value. This may be done based on a predicted area of the vessel, which area may be predicted based on the course and speed of the vessel. The obstacles in this area are then typically known and also piracy warning level and IPSS warning level may be known in advance.
  • the weather in the area may be predicted in a known way and also the number of other vessels may be predicted based on the time of day, week day and known history data about how many vessels have been in that particular area at a corresponding earlier time. The other vessels may in this way thus be determined based on vessel statistics of the area.
  • This invention provides the personnel on watch during shift hours or otherwise an indicator that reports the level of "seriousness” or attentiveness required at any given hour. It alerts the personnel to be more proactive and involved in their operations based on the time of day, type of operations being carried out, weather, presence of other vessels in the area and other information that can be useful in avoiding an accident or abnormal situation. All this information may be concentrated in a minimalistic display which gives "at-a-glance" status of the current situation. Thus, informing the personnel about the seriousness of the situation.
  • the information from different system already on-board vessels can be collected and based on the time of day, marine traffic in the area, weather conditions, vessel speed etc., the alertness level may be calculated by a formula that assigns weightage too all these parameters and calculates the level of alertness required.
  • the attentiveness required can be indicated with additional sounds to get the attention of the users.
  • the lighting on the bridge or control room can be changed to represent a relaxed situation or one that requires alertness.
  • the time of day may also have to be considered when changing lighting.
  • the attentiveness indicator device may also show a detail message explaining why the levels have changed, for example because the vessel enters a harbour or travels in a specific area of the sea where there is more traffic etc.
  • the invention has several further advantages apart form those already mentioned.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)

Claims (10)

  1. Procédé pour donner une indication d'un niveau d'attention requis pour un utilisateur sur un navire (10), le navire comportant un groupe d'ordinateurs (28, 30, 32, 34, 36, 37) fournissant des données de différente types employées dans la navigation du navire, le procédé étant réalisé par un dispositif indicateur (20) d'attention dans le navire et comportant les étapes consistant à :
    - obtenir (44) divers types de données de manoeuvre du navire à partir desdits ordinateurs (28, 30, 32, 34, 37), les données de manoeuvre du navire comportant des données internes du navire et des données environnementales, les données environnementales étant liées à une zone associée à la position du navire et comportant des données de profondeur du fond marin, les données de manoeuvre du navire comportant des données internes du navire d'un type et des données environnementales d'un type correspondant, le procédé comportant en outre l'étape consistant à traiter des données de manoeuvre du navire, ledit traitement comportant l'étape consistant à comparer des données internes de manoeuvre et des données environnementales correspondantes pour obtenir des données agrégées de manoeuvre du navire, un type de données internes de manoeuvre du navire étant sa propre route et un type correspondant de données environnementales étant des routes de navires environnants, les données agrégées de manoeuvre du navire pour ce type de données internes du navire comportant un dénombrement des navires environnants dont les routes croisent sa propre route,
    - pondérer (48) les données de manoeuvre du navire en fonction de l'importance, au moins une partie des poids comportant un poids pour la profondeur du fond marin augmentant avec la vitesse du navire,
    - combiner (50) les données de manoeuvre du navire pour obtenir une valeur d'attention,
    - comparer (52) la valeur d'attention à au moins un seuil,
    - affecter (54) un niveau d'attention (L2) à la valeur d'attention d'après la comparaison, et
    - présenter (56) le niveau d'attention (L2) à l'utilisateur afin de donner une indication de l'attention requise.
  2. Procédé selon la revendication 1, la pondération suivant l'importance comportant l'attribution d'un plus grand poids à des données liées à la sécurité qu'à d'autres données.
  3. Procédé selon l'une quelconque des revendications précédentes, au moins une partie des poids dépendant de l'heure de la journée.
  4. Procédé selon l'une quelconque des revendications précédentes, les données de manoeuvre du navire comportant des données prédites de manoeuvre du navire et l'obtention, la pondération en fonction de l'importance et la comparaison étant effectuées pour obtenir une valeur prédite d'attention.
  5. Procédé selon l'une quelconque des revendications précédentes, un type de données internes du navire étant la profondeur du navire et un type correspondant de données environnementales étant la profondeur du fond marin, les données agrégées de manoeuvre du navire pour ce type de données internes du navire comportant la différence entre la profondeur du fond marin et la profondeur du navire.
  6. Dispositif indicateur (20) d'attention donnant une indication d'un niveau d'attention requis pour un utilisateur sur un navire (10), le navire comportant un groupe d'ordinateurs (28, 30, 32, 34, 36, 37) fournissant des données de différents types employées dans la navigation du navire, le dispositif indicateur d'attention étant placé dans le navire et configuré pour :
    - obtenir divers types de données de manoeuvre du navire à partir desdits ordinateurs (28, 30, 32, 34, 37), les données de manoeuvre du navire comportant des données internes du navire et des données environnementales, les données environnementales étant liées à une zone associée à la position du navire et comportant des données de profondeur du fond marin, les données de manoeuvre du navire comportant des données internes du navire d'un type et des données environnementales d'un type correspondant, le dispositif indicateur d'attention étant en outre configuré pour traiter des données de manoeuvre du navire, ledit traitement comportant l'étape consistant à comparer des données internes du navire et des données environnementales correspondantes pour obtenir des données agrégées de manoeuvre du navire, un type de données internes du navire étant sa propre route et un type correspondant de données environnementales étant des routes de navires environnants, les données agrégées de manoeuvre du navire pour ce type de données internes du navire comportant un dénombrement des navires environnants dont les routes croisent sa propre route,
    - pondérer des données de manoeuvre du navire en fonction de l'importance, au moins une partie des poids comportant un poids pour la profondeur du fond marin augmentant avec la vitesse du navire,
    - combiner les données de manoeuvre du navire pour obtenir une valeur d'attention,
    - comparer la valeur d'attention à au moins un seuil,
    - affecter un niveau d'attention (L2) à la valeur d'attention d'après la comparaison, et
    - présenter le niveau d'attention (L2) à l'utilisateur afin de donner une indication de l'attention requise.
  7. Dispositif indicateur (20) d'attention selon la revendication 6 celui-ci étant configuré, lorsqu'il est configuré pour pondérer suivant l'importance, pour attribuer un plus grand poids à des données liées à la sécurité qu'à d'autres données.
  8. Dispositif indicateur (20) d'attention selon la revendication 6 ou 7, au moins une partie des poids dépendant de l'heure de la journée.
  9. Dispositif indicateur (20) d'attention selon l'une quelconque des revendications 6 à 8, les données de manoeuvre du navire comportant des données prédites de manoeuvre du navire et le dispositif indicateur d'attention, lorsqu'il est configuré pour obtenir, pondérer en fonction de l'importance et comparer, étant configuré pour effectuer ces étapes afin d'obtenir une valeur prédite d'attention.
  10. Produit de programme d'ordinateur destiné à donner une indication d'un niveau d'attention requis pour un utilisateur sur un navire (10), le navire comportant un groupe d'ordinateurs (28, 30, 32, 34, 36, 37) fournissant des données de différents types employées dans la navigation du navire, ledit produit de programme d'ordinateur étant placé sur un support (58) de données comportant du code (60) de programme d'ordinateur configuré pour amener un dispositif indicateur d'attention placé dans le navire, lorsque ledit code de programme d'ordinateur est chargé dans le dispositif indicateur d'attention, à
    - obtenir divers types de données de manoeuvre du navire à partir desdits ordinateurs (28, 30, 32, 34, 37), les données de manoeuvre du navire comportant des données internes du navire et des données environnementales, les données environnementales étant liées à une zone associée à la position du navire et comportant des données de profondeur du fond marin, les données de manoeuvre du navire comportant des données internes du navire d'un type et des données environnementales d'un type correspondant, le dispositif indicateur d'attention étant en outre configuré pour traiter des données de manoeuvre du navire, ledit traitement comportant l'étape consistant à comparer des données internes du navire et des données environnementales correspondantes pour obtenir des données agrégées de manoeuvre du navire, un type de données internes du navire étant sa propre route et un type correspondant de données environnementales étant des routes de navires environnants, les données agrégées de manoeuvre du navire pour ce type de données internes du navire comportant un dénombrement des navires environnants dont les routes croisent sa propre route,
    - pondérer des données de manoeuvre du navire en fonction de l'importance, au moins une partie des poids comportant un poids pour la profondeur du fond marin augmentant avec la vitesse du navire,
    - combiner les données de manoeuvre du navire pour obtenir une valeur d'attention,
    - comparer la valeur d'attention à au moins un seuil,
    - affecter un niveau d'attention (L2) à la valeur d'attention d'après la comparaison, et
    - présenter le niveau d'attention (L2) à l'utilisateur afin de donner une indication de l'attention requise.
EP12180164.1A 2012-08-10 2012-08-10 Indicateur de niveau d'attention requis Active EP2695808B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12180164.1A EP2695808B1 (fr) 2012-08-10 2012-08-10 Indicateur de niveau d'attention requis
NO12180164A NO2695808T3 (fr) 2012-08-10 2012-08-10
PCT/EP2013/064120 WO2014023483A1 (fr) 2012-08-10 2013-07-04 Indicateur d'attention

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Application Number Priority Date Filing Date Title
EP12180164.1A EP2695808B1 (fr) 2012-08-10 2012-08-10 Indicateur de niveau d'attention requis

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EP2695808A1 EP2695808A1 (fr) 2014-02-12
EP2695808B1 true EP2695808B1 (fr) 2017-12-27

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