EP3228532B1 - Appareil de commande de traitement d'eau de ballast et procédé - Google Patents

Appareil de commande de traitement d'eau de ballast et procédé Download PDF

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Publication number
EP3228532B1
EP3228532B1 EP16163894.5A EP16163894A EP3228532B1 EP 3228532 B1 EP3228532 B1 EP 3228532B1 EP 16163894 A EP16163894 A EP 16163894A EP 3228532 B1 EP3228532 B1 EP 3228532B1
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EP
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Prior art keywords
ballast
unit
ballast water
water treatment
positional information
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EP16163894.5A
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German (de)
English (en)
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EP3228532A1 (fr
Inventor
Kyu Won Park
Seong Tae Kim
Hai Don Lee
Yong Seok Park
Gwang Ho Lee
Eun Kyu Park
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Techcross Co Ltd
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Techcross Co Ltd
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Priority to EP16163894.5A priority Critical patent/EP3228532B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
    • B63J4/002—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating ballast water

Definitions

  • the present invention relates to a ballast water treatment operating apparatus and method and particularly to a ballast water treatment operating apparatus and method for determining whether to operate a ballast water treatment by using positional information of a global positioning system (GPS).
  • GPS global positioning system
  • ballast water is filled in one port by means of the ballasting operation, then transferred to another port and discharged in the new port by means of the deballasting operation.
  • ballast water containing marine organisms and pathogens which is transferred from a long distance away is discharged, such a discharge may cause adverse effects disturbing the marine environment and ecosystem.
  • the International Maritime Organism IMO has recently enacted the ballast water treatment regulation to prevent the disturbance of the environment and ecosystem.
  • ballast water treatment devices which electrolyze ballast water or sterilize it by injecting chemicals or by ultraviolet light, are generally used in ships.
  • ballast water entered into the ballast water tank or discharged from the ballast water tank is of a large capacity, the high power consumption is caused whenever such a treatment is done.
  • the present invention has an object to provide a ballast water treatment operating apparatus and method which determine whether to operate a ballast water treatment by using positional information of GPS.
  • a ballast water treatment operating apparatus may comprise: a ballast water treatment unit for performing a certain treatment of a ballast water flowing in from the outside for a ballast operation or performing a certain treatment of ballast water discharged into the outside for a de-ballast operation; a positional information receiving unit for receiving positional information; and a control unit for confirming a ship's position by using positional information received from the positional information receiving unit and then determining whether to operate the ballast water treatment unit during the ballast operation or during the de-ballast operation.
  • control unit may further comprise a memory for storing a position to perform the ballast operation, and the control unit may store in the memory the position to perform the ballast operation during the ballast operation and, in consideration of a ballast operation performing area stored in the memory at the time of the ballast operation, may determine whether to operate the ballast water treatment unit.
  • an operational condition of the ballast water treatment unit required during the ballast operation or during the de-ballast operation may be stored in the memory, and the control unit may be configured to determine whether to operate the ballast water treatment unit according to the operational condition stored in the memory during the ballast operation or during the de-ballast operation.
  • control unit may be configured to store the updated operational condition of the ballast water treatment unit in the memory.
  • the ballast water treatment unit may comprise an electrolysis unit for being capable of electrolyzing the ballast water flowing in from the outside during the ballast operation; and a neutralization unit for neutralizing residual oxidants remaining in ballast water discharged into the outside during the de-ballast operation, and the control unit may be configured to control the electrolysis unit by determining whether to operate the electrolysis unit during the ballast operation and may be also configured to control the neutralization unit by determining whether to operate the neutralization unit during the de-ballast operation.
  • the ballast water treatment unit may comprise an ultraviolet treatment unit for performing an ultraviolet sterilization treatment of ballast water flowing in from the outside during the ballast operation or of ballast water discharged into the outside during the de-ballast operation, and the control unit may be configured to control the ultraviolet treatment unit by determining whether to operate the ultraviolet treatment unit during a ballast operation and during a de-ballast operation.
  • a ballast water treatment operating method may comprise the steps of: receiving a first positional information from a positional information receiving unit if a ballast operating button is inputted via a user inputting unit; storing in a memory the first positional information received from the positional information receiving unit at the step of receiving the first positional information; confirming whether positional information as to a position to perform a de-ballast operation via the user inputting unit is inputted; and performing a certain treatment of ballast water flowing in from the outside by operating a ballast water treatment unit if the positional information inputted at the confirmation step satisfies an operational condition of the ballast water treatment unit.
  • the method may further comprise the steps of: receiving a second positional information from the positional information receiving unit if a de-ballast operating button is inputted via a user inputting unit; and performing a certain treatment of ballast water discharged into the outside by operating the ballast water treatment unit if an operational condition of the ballast water treatment unit is satisfied in consideration of the second positional information received from the positional information receiving unit at the second positional information receipt step and the first positional information stored in the memory.
  • the present invention can prevent a needless energy consumption by determining whether to operate a ballast water treatment based on positional information.
  • the present invention can determine whether to treat ballast water according to a deballasting operation performing area at the time of the deballasting operation.
  • FIG. 1 illustrates schematically a block diagram of a ballast water treatment operating apparatus according to one embodiment of the present invention.
  • a ballast water treatment operating apparatus includes a pump 110 for intaking ballast water; a ballast water tank 135 for storing ballast water; and a first valve 121, a second valve 122, a third valve (ECU intake valve) 123, a fourth valve (ECU discharge valve), a fifth valve (bypass valve) 125, a sixth valve (tank discharge valve) 126, a seventh valve (tank intake valve) 127 and a eighth valve (deballast discharge valve) 128 for controlling the flow rate of ballast water.
  • the ballast water treatment operating apparatus includes a plurality of units related with a ballast water treatment.
  • the ballast water treatment operating apparatus includes an electrolysis unit (ECU) 146 for electrolyzing ballast water; a neutralization unit 142 for neutralizing TRO remaining in ballast water discharged during a deballast operation; a TRO sensor unit 148 for measuring TRO remaining in ballast water during a ballast or deballast operation; a flow rate detection unit 144 for detecting a flow during a ballast or deballast operation; and a power supply unit 160 for supplying a power to the above units.
  • ECU electrolysis unit
  • TRO used in this invention means the total residual oxidant existing in ballast water and is generally obtained by measuring a residual chlorine value of chlorine remained after chlorine generated via an electrolysis process oxidizes aquatic organisms within ballast water.
  • seawater or salt water is electrolyzed or chlorine-sterilized, several kinds of oxidants coexist as a result of replacement of active chlorines by atoms such as bromine.
  • the TRO indicates all active oxidants existing at this time.
  • the ballast water treatment operating apparatus also includes a pump 110; a distribution board 150 for providing a state signal for each operation of a plurality of valves; a user inputting unit 170 operable to receive a user input; a positional information receiving unit 180 operable to communicate with a satellite; and a control unit 190 operable to communicate with and control the above units, wherein the control unit may comprise a personal computer and the like.
  • the state signal of each valve means a state information detected according to operation of the pump 110 or each valve.
  • a state signal of each valve may be a state-on signal when the valve is open.
  • the positional information receiving unit 180 may include a GPS satellite communication module to receive positional information, and may also receive positional information directly from a user.
  • the positional information receiving unit 180 may receive an operational condition updated through communication with an artificial satellite in case the positional information receiving unit 180 is provided with a satellite communication module.
  • control unit 190 confirms a position as to a ship's latitude and longitude by using positional information received from the positional information receiving unit 180 when a ballast operation is to be performed.
  • the control unit 190 performs a ballast operation without operating the electrolysis unit 146 if a ship's position is located in an area in which the electrolysis unit 146 does not need to be operated.
  • control unit 190 operates the electrolysis unit 146 during a ballast operation if a ship's position is located in an area in which the electrolysis unit 146 has to be operated.
  • control unit 190 confirms a position as to a ship's latitude and longitude by using positional information received from the positional information receiving unit 180 when a deballast operation is to be performed.
  • the control unit 190 performs a deballast operation without operating the neutralization unit 142 if a ship's position is located in an area in which the neutralization unit 142 does not need to be operated.
  • control unit 190 operates the neutralization unit 142 during a ballast operation if a ship's position is located in an area in which the neutralization unit 142 has to be operated.
  • control unit 190 may further include a memory (not shown).
  • a memory (not shown).
  • the memory are stored an operational condition as to whether to operate the electrolysis unit 146 during a ballast operation and an operational condition as to whether to operate the neutralization unit 142 necessary during a deballast operation.
  • control unit 190 determines whether to operate the electrolysis unit 146 according to the operational condition stored in the memory when a ballast operation is to be performed and determines whether to operate the neutralization unit 142 according to the operational condition stored in the memory when a deballast operation is to be performed.
  • the condition by which the control unit 190 determines whether to perform an operation includes (1) whether the area where a ballast operation is performed is the same as that where a deballast operation is performed; (2) whether the area where a ballast or deballast operation is performed is under the Mutual Exemption Agreement and the like.
  • the control unit 190 does not operate the electrolysis unit 146 if the area where a ballast operation is performed is the same as that where a deballast operation is performed or if the area where a ballast operation is performed is under the Mutual Exemption Agreement.
  • control unit 190 may store in a memory an updated operational condition received at the positional information receiving unit 180.
  • FIG. 2 illustrates schematically a block diagram of a ballast water treatment operating apparatus according to another embodiment of the present invention.
  • a ballast water treatment operating apparatus includes a pump 210 for intaking ballast water; a ballast water tank 235 for storing ballast water; and a first valve 221, a second valve 222, a third valve 223, a fourth valve 224 and a fifth valve 225 for controlling the flow rate of ballast water.
  • the ballast water treatment operating apparatus includes a plurality of units related with a ballast water treatment.
  • the ballast water treatment operating apparatus includes a filter unit 240 for filtering detrimental substances, etc., of ballast water; an ultraviolet (UV) treatment unit 245 for performing UV treatment of ballast water; and a power supply unit 250 for supplying a power to the above units.
  • a filter unit 240 for filtering detrimental substances, etc., of ballast water
  • an ultraviolet (UV) treatment unit 245 for performing UV treatment of ballast water
  • a power supply unit 250 for supplying a power to the above units.
  • the ballast water treatment operating apparatus also includes a pump 210; a distribution board 260 for providing a state signal for each operation of a plurality of valves; a user inputting unit 270 operable to receive a user input; a positional information receiving unit 280 operable to communicate with a satellite; a control unit 290 operable to communicate with and control the above units, wherein the control unit may comprise a personal computer and the like.
  • the state signal of each valve means a state information detected according to operation of the pump 210 or each valve.
  • a state signal of each valve may be a state-on signal when the valve is open.
  • the positional information receiving unit 280 may include a GPS satellite communication module to receive positional information, and may also receive positional information directly from a user.
  • the positional information receiving unit 280 may receive an operational condition updated through communication with an artificial satellite in case the positional information receiving unit 180 is provided with a satellite communication module.
  • the positional information receiving unit 280 includes GPS which receives positional information. In addition, the positional information receiving unit 280 may receive an operational condition updated through communication with an artificial satellite.
  • control unit 290 confirms a position as to a ship's latitude and longitude by using positional information received from the positional information receiving unit 280 if a ballast operation is to be performed.
  • the control unit 290 performs a ballast operation without operating an ultraviolet treatment unit 245 if a ship's position is located in an area in which the ultraviolet treatment unit 245 does not need to be operated.
  • the control unit 290 operates the ultraviolet treatment unit 245 during a ballast operation if a ship's position is located in an area in which the ultraviolet treatment unit 245 has to be operated.
  • control unit 290 confirms a position as to a ship's latitude and longitude by using positional information received from the positional information receiving unit 280 when a deballast operation is to be performed.
  • the control unit 290 performs a deballast operation without operating the ultraviolet treatment unit 245 if a ship's position is located in an area in which the ultraviolet treatment unit 245 does not need to be operated.
  • control unit 290 operates the ultraviolet treatment unit 245 during a ballast operation if a ship's position is located in an area in which the ultraviolet treatment unit 245 has to be operated.
  • control unit 290 may further include a memory (not shown).
  • a memory (not shown).
  • the memory are stored an operational condition as to whether to operate the ultraviolet treatment unit 245 during a ballast operation and an operational condition as to whether to operate the ultraviolet treatment unit 245 necessary during a deballast operation.
  • control unit 290 determines whether to operate the ultraviolet treatment unit 245 according to the operational condition stored in the memory when a ballast operation is to be performed and determines whether to operate the ultraviolet treatment unit 245 according to the operational condition stored in the memory when a deballast operation is to be performed.
  • control unit 290 may store in a memory an updated operational condition received at the positional information receiving unit 280.
  • the electrolysis unit, the neutralization unit or the ultraviolet treatment unit described in the above mentioned embodiments may be commonly called a ballast water treatment unit.
  • FIG. 3 is a flow chart of a ballast operation according to one embodiment of the present invention.
  • a crew may input a ballast operation instruction into a control unit 190 by pressing a ballast button (not shown) of a user inputting unit 170 when the crew is to proceed with a ballast operation (S302).
  • first the control unit 190 controls a drive unit (not shown) such that a first valve 121, a second valve 122, a third valve 123, a fourth valve 124 and a seventh valve 127 are opened (S304).
  • a first valve state-on signal, a second valve state-on signal, a third valve state-on signal, a fourth valve state-on signal and a seventh valve state-on signal may be provided to a distribution board 160.
  • a fifth valve state-off signal, a sixth valve state-off signal and a eighth valve state-off signal may also be provided to the distribution board 160.
  • control unit 190 may control the drive unit to operate a pump 110 (S306). According to an operation of the pump 110, a pump state-on signal may be provided to the distribution board 160.
  • the control unit 190 may be configured to detect a flow rate of ballast water via a flow rate detection unit 144 if the pump 110 is operated (S308). The control unit 190 may determine that ballast water is flowing if a flow rate value obtained from the flow rate detection unit 144 is greater than or equal to a defined standard flow rate value, for example 500m 3 /h.
  • the control unit 190 receives positional information from the positional information receiving unit 180 (S310).
  • the control unit 190 store in a memory positional information of a ship which is to perform a ballast operation (S312).
  • the control unit 190 checks whether a user selects a position to perform a deballast operation by manipulating a user inputting unit 170 (S314).
  • the control unit 190 operates a ballast water treatment unit, that is the electrolysis unit 146 or the ultraviolet treatment unit 245 if a user does not select a position to perform a deballast operation (S320). Meanwhile, the control unit 190 may adjust a current supplied to the electrolysis unit 146 depending on a flow rate of ballast water detected by the flow rate detection unit 144.
  • the control unit 190 may also measure a flow rate of ballast water by the flow rate detection unit 144 and control a current supplied to the electrolysis unit 146 such that a proper amount of TRO is generated by measuring TRO by the TRO sensor unit 148.
  • the control unit 190 may control a flow rate of ballast water by controlling the pump 110 as necessary.
  • the control unit 190 may be configured to store a deballast position if a position to perform a deballast operation is selected by a user (S316).
  • the control unit 190 checks whether to be the unoperation condition of a ballast treatment (S318).
  • the control unit 190 operates a ballast water treatment unit, that is to say the electrolysis unit 146 or the ultraviolet treatment unit 245 if not being an unoperation condition of a ballast treatment (S320).
  • the control unit 190 also performs a ballast operation without operating a ballast water treatment unit, that is the electrolysis unit 146 or the ultraviolet treatment unit 245 if an unoperation condition of a ballast treatment is satisfied (S322).
  • the control unit 190 may in particular stop operating the electrolysis unit 146 or the ultraviolet treatment unit 245 if a flow rate of ballast water is not detected at the flow rate detection unit 144 because the ballast water tank 135 is completely filled with ballast water.
  • FIG. 4 is a flow chart of a deballast treatment operation according to another embodiment of the present invention.
  • a crew may input a deballast operation instruction into a control unit 190 by pressing a deballast button (not shown) of a user inputting unit 170 when the crew is to proceed with a deballast operation (S402).
  • the control unit 190 controls a drive unit (not shown) such that a second valve 122, a fifth valve 125, a sixth valve 126 and a eighth valve 128 are opened (S404).
  • a second valve state-on signal, a fifth valve state-on signal, a sixth valve state-on signal and a eighth valve state-on signal may be provided for a distribution board 160.
  • a first valve state-off signal, a third valve state-off signal, a fourth valve state-off signal and a seventh valve state-off signal may also be provided to the distribution board 160.
  • control unit may control the drive unit to operate the pump 110 (S406).
  • a pump state-on signal may be provided to the distribution board 160.
  • the control unit 190 detects a flow rate of ballast water via a flow rate detection unit 144 if the pump 110 is operated (S408).
  • the control unit 190 receives positional information from the positional information receiving unit 180 (S410).
  • the control unit 190 store in a memory positional information of a ship which is to perform a deballast operation (S412).
  • the control unit 190 checks whether to be an unoperation condition of a deballast treatment (S414).
  • the control unit 190 operates a ballast water treatment unit, that is to say the neutralization unit 142 or the ultraviolet treatment unit 245 if not being an unoperation condition of a deballast treatment (S416), and performs a deballast operation without operating a ballast water treatment unit, that is to say the neutralization unit 142 or the ultraviolet treatment unit 245 if an unoperation condition of a deballast treatment is satisfied (S418).
  • the control unit 190 may in particular stop operating the neutralization unit 142 or the ultraviolet treatment unit 245 if a flow rate of ballast water is not detected at the flow rate detection unit 144 because the ballast water tank 135 is completely empty of ballast water.
  • the ballast water treatment operating apparatus may include a stride operation, a gravity ballast operation and a gravity deballast operation and the like, other than the above mentioned operation conditions and may also be provided with a selection switch manually operable by the manipulation of a crew.
  • the ballast water treatment operating apparatus may store a log such as operation records, that is to say a flow rate and a treatment concentration.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Physical Water Treatments (AREA)

Claims (8)

  1. Appareil de commande de traitement d'eau de ballast comprenant :
    une unité de traitement d'eau de ballast destinée à réaliser un certain traitement d'une eau de ballast provenant de l'extérieur pour une opération de ballastage ou à réaliser un certain traitement de l'eau de ballaste déchargée vers l'extérieur pour une opération de déballastage ;
    une unité de réception d'informations de position (180, 280) destinée à recevoir des informations de position ; et
    une unité de commande (190, 290) destinée à confirmer la position d'un navire en utilisant les informations de position reçues de l'unité de réception d'informations de position (180, 280), puis à déterminer s'il faut ou non actionner l'unité de traitement d'eau de ballast pendant l'opération de ballastage ou pendant l'opération de déballastage ;
    l'unité de commande (190, 290) n'actionnant pas l'unité de traitement d'eau de ballast lorsque la zone dans laquelle l'opération de ballast est réalisée est la même que la zone dans laquelle l'opération de déballastage est réalisée ou lorsque la zone dans laquelle l'opération de ballastage ou l'opération de déballastage est réalisée se trouve sous Accord d'Exemption Mutuelle établissant qu'une application d'une Convention de Gestion des Eaux de Ballast fait l'objet d'une exemption mutuelle.
  2. Appareil de commande de traitement d'eau de ballast selon la revendication 1, dans lequel l'unité de commande (190, 290) comprend une mémoire destinée à stocker une position pour la réalisation de l'opération de ballastage, et dans lequel l'unité de commande (190, 290) stocke dans la mémoire la position pour la réalisation de l'opération de ballastage pendant l'opération de ballastage et, en considération d'une zone de réalisation d'opération de ballastage stockée dans la mémoire au moment de l'opération de ballastage, détermine s'il faut ou non actionner l'unité de traitement d'eau de ballast.
  3. Appareil de commande de traitement d'eau de ballast selon la revendication 2, dans lequel une condition de fonctionnement de l'unité de traitement d'eau de ballast requise pendant l'opération de ballastage ou pendant l'opération de déballastage est stockée dans la mémoire, et dans lequel l'unité de commande (190, 290) est configurée pour déterminer s'il faut ou non actionner l'unité de traitement d'eau de ballast selon la condition de fonctionnement stockée dans la mémoire pendant l'opération de ballastage ou pendant l'opération de déballastage.
  4. Appareil de commande de traitement d'eau de ballast selon la revendication 3, dans lequel, si une condition de fonctionnement mise à jour de l'unité de traitement d'eau de ballast est introduite via l'unité de réception d'informations de position (180, 280), l'unité de commande (190, 290) est configurée pour stocker dans la mémoire la condition de fonctionnement mise à jour de l'unité de traitement d'eau de ballast.
  5. Appareil de commande de traitement d'eau de ballast selon l'une quelconque des revendications 1 à 4, dans lequel l'unité de traitement d'eau de ballast comprend une unité d'électrolyse (146) destinée à pouvoir électrolyser l'eau de ballast provenant de l'extérieur pendant l'opération de ballastage ; et une unité de neutralisation (142) destinée à neutraliser des oxydants résiduels restant dans l'eau de ballast déchargée vers l'extérieur pendant l'opération de déballastage, et
    l'unité de commande (190, 290) étant configurée pour commander l'unité d'électrolyse (146) en déterminant s'il faut ou non actionner l'unité d'électrolyte (146) pendant l'opération de ballastage et étant également configurée pour commander l'unité de neutralisation (142) en déterminant s'il faut ou non actionner l'unité de neutralisation (142) pendant l'opération déballastage.
  6. Appareil de commande de traitement d'eau de ballast selon l'une quelconque des revendications 1 à 4, dans lequel l'unité de traitement d'eau de ballast comprend une unité de traitement par ultraviolets (245) destinée à réaliser un traitement de stérilisation par ultraviolets de l'eau de ballast provenant de l'extérieur pendant l'opération de ballastage ou de l'eau de ballast déchargée vers l'extérieur pendant l'opération de déballastage, et
    l'unité de commande (190, 290) étant configurée pour commander l'unité de traitement par ultraviolets (245) en déterminant s'il faut ou non actionner l'unité de traitement par ultraviolets (245) pendant une opération de ballastage et pendant une opération de déballastage.
  7. Procédé de commande de traitement d'eau de ballast pour l'appareil de commande de traitement d'eau de ballast selon la revendication 1, le procédé comprenant les étapes de :
    réception de premières informations de position en provenance d'une unité de réception d'informations de position (180, 280) si un bouton d'actionnement de ballastage est actionné via une unité d'interface utilisateur
    confirmation du fait que des deuxièmes informations de position concernant une position pour la réalisation d'une opération de ballastage ont ou non été introduites via l'unité d'interface utilisateur ;
    détermination du fait que la zone dans laquelle l'opération de ballastage est réalisée est ou non la même que la zone dans laquelle l'opération de déballastage est réalisée ou du fait que la zone dans laquelle l'opération de ballastage et l'opération de déballastage sont réalisées se trouve ou non sous Accord d'Exemption Mutuelle établissant qu'une application d'une Convention de Gestion des Eaux de Ballast fait l'objet d'une exemption mutuelle, en utilisant les premières informations de position reçues à l'étape de réception et les deuxièmes informations de position confirmées à l'étape de confirmation ; et
    non actionnement d'une unité de traitement d'eau de ballast de façon à ne pas réaliser un traitement prédéterminé sur l'eau de ballast provenant de l'extérieur lorsque la zone dans laquelle l'opération de ballast est réalisée est la même que la zone dans laquelle l'opération de déballastage est réalisée et lorsque la zone dans laquelle l'opération de ballastage ou l'opération de déballastage est réalisée se trouve sous Accord d'Exemption Mutuelle.
  8. Procédé selon la revendication 7, comprenant en outre les étapes de :
    réception de deuxièmes informations de position en provenance de l'unité de réception d'informations de position (180, 280) si un bouton d'actionnement de déballastage est actionné via une unité d'interface utilisateur ; et
    réalisation d'un certain traitement de l'eau de ballast déchargée vers l'extérieur par actionnement de l'unité de traitement d'eau de ballast si une condition de fonctionnement de l'unité de traitement d'eau de ballast est satisfaite en considération des deuxièmes informations de position reçues de l'unité de réception d'informations de position (180, 280) à l'étape de réception de deuxièmes informations de position et des premières informations de position stockées dans la mémoire.
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