EP3473062A1 - Procédé de commande d'un système de feux de navigation d'aéroport - Google Patents

Procédé de commande d'un système de feux de navigation d'aéroport

Info

Publication number
EP3473062A1
EP3473062A1 EP18716643.4A EP18716643A EP3473062A1 EP 3473062 A1 EP3473062 A1 EP 3473062A1 EP 18716643 A EP18716643 A EP 18716643A EP 3473062 A1 EP3473062 A1 EP 3473062A1
Authority
EP
European Patent Office
Prior art keywords
time
noise
low
time slots
sending
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.)
Granted
Application number
EP18716643.4A
Other languages
German (de)
English (en)
Other versions
EP3473062B1 (fr
Inventor
Daniel BELLIDO BÁREZ
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.)
Grp Iluminacion SA
Original Assignee
Grp Iluminacion SA
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 Grp Iluminacion SA filed Critical Grp Iluminacion SA
Priority to PL18716643T priority Critical patent/PL3473062T3/pl
Publication of EP3473062A1 publication Critical patent/EP3473062A1/fr
Application granted granted Critical
Publication of EP3473062B1 publication Critical patent/EP3473062B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • the invention relates to a method for controlling an airport navigation lights system, comprising (a) a power source for producing an AC current, the AC current having a period; (b) a plurality of lamp units that are powered by the power source via a cable and comprise a receiver and at least one aeronautical ground light; and (c) a control unit that is connected to the cable and arranged for sending messages to the lamp units and receiving messages from the lamp units via the cable.
  • the invention relates to such an airport navigation lights system.
  • Such an airport navigation lights systems is known from FR 2 865 871 A1 and WO 95/24820 A1 and is used for lighting traffic ways of an airport, e.g. its runway or taxiways.
  • the lamps of the airport navigation light system which may also be called aeronautical ground lights, must be checked regularly in order to make sure they function properly. Furthermore, it is an advantage to be able to communicate with each of those lights so that they may be used as signals for pilots.
  • the noise level is in particular intended to mean the amount of current and/or voltage fluctuations that are not intended.
  • the noise threshold is in particular intended to mean a fixed value that has been chosen such that noise below that threshold does not interfere with the data transmission.
  • the noise threshold may be pre-determined.
  • the noise threshold may be stored in e.g. a digital storage before the noise levels are being determined. This noise threshold is chosen as high as possible, but low enough to ensure reliable communication.
  • the low-information message encodes less than two bits per half period, e. g. one bit per half period.
  • Such a low data rate makes the data transmission very robust and little error-prone.
  • the low-noise time slots that are used for sending high-information messages are called active time slots. It is possible, but not necessary, that all low-noise time slots are active time slots. If not all low-noise time slots are necessary for the
  • the first channel may be used encode time-critical information, e.g. whether or not a lamp unit is operational, inactive or defect.
  • the second channel may be used to encode non time-critical information, e.g. electrical parameters of the lamp units such as voltage or current.
  • the first channel uses a frequency that has a lower attenuation and/or noise level than the other channels.
  • each time slot at least four, in particular at least six, frequency channels are used. It has turned out that for most airport navigation light systems at least up to ten frequency channels are possible, which leads to a high data rate.
  • At least a majority of the lamp units automatically carries out a method comprising the following steps: (i) receiving the low-information message encoding the timing of the low-noise time slots and (ii) sending at least one status message in at least one low-noise time slot.
  • the lamp units usually receive and send these kinds of messages regularly.
  • the steps (i) and (ii) of claim 1 are carried out repeatedly after preset time interval and if the noise level in one low-noise time slots exceeds the noise threshold and this low-noise time slot is an active low-noise time slot used for sending high- information messages, a new low-information message encoding the timing of at least some of the low-noise time slots relative to the period is sent. If the noise level in one of the high-noise time slots falls below the noise threshold and an active low- noise time slot has a higher-noise level than this (formerly high-noise) time slot, a new low-information message encoding the timing of at least some of the low-noise time slots relative to the period may be sent. In other words, the active low-noise time slots will be changed, if necessary and/or advantageous.
  • the current edges are the steep incline when the phase cut ends and the steep decline when the phase cut starts. If the AC current's waveform is a sine wave, the current edges occur when the first derivative with respect to time has its maximum or its minimum.
  • An independent aspect of the present invention is a method for controlling an airport navigation lights system comprising (a) a power source for producing an AC current, the AC current having a period, (b) a plurality of lamp units that are powered by the power source by means of a cable, and comprise a receiver and a clock, (c) a control unit that is connected to the cable and is arranged for sending messages to the lamp units and receiving messages from the lamp units via the cable, the method comprising the following steps: (i) sending messages in time slots by means of at least one of the lamp units; a timing of the time slots being determined by means of the clock; (ii) sending a reference point setting signal (e.g. by means of the control unit) and synchronizing the clock with the AC current based on the reference point setting signal.
  • a power source for producing an AC current, the AC current having a period
  • a plurality of lamp units that are powered by the power source by means of a cable, and comprise a receiver and a clock
  • a control unit that is connected
  • the airport navigation lights system has a number of aeronautical ground lights that is chosen small enough so such that the status of all lamp units is retrievable within two seconds.
  • An airport may comprise more than one airport navigation light system according to the invention so that the total number of aeronautical ground lights that can be checked within two seconds can be larger.
  • the invention also solves the problem by means of an airport comprising an airport navigation light system as described above and a taxiway and a runway, wherein the aeronautical ground lights are installed in the taxiway and/or the runway.
  • this airport comprises a second airport navigation lights system as described above, wherein the frequencies of their frequency channels in the first airport navigation lights system differ from the frequencies in the frequency channels in the second airport navigation lights system so that cross-talk between the two airport navigation lights systems is minimized.
  • the airport may comprise two groups of lamp units. The first group may be safety relevant and may need to be checkable within e.g. two seconds. The second group may not be safety relevant and may be checked only within a longer time period, e.g. five seconds.
  • each lamp unit has a digital storage in which a timing of a sending time frame is stored, wherein the sending time frames for all lamp units of the first airport navigation lights system and the second airport navigation lights system are different.
  • the communication is undisturbed even if there is cross-talk between the cable of the first airport navigation lights system and the cable of the second airport navigation lights system.
  • the filter unit 28 strongly damps frequencies above f ⁇ i . Frequencies below f ⁇ 2 can almost not pass through the filter from the first end E1 to the second end E2.
  • the filter unit 28 also prevents frequencies above f ⁇ 2 from entering into the power source 24.
  • the airport navigation lights system 22 also comprises a control unit 30 that is connected to the cable 25 via an isolation transformer 32.
  • the control unit 30 may have a terminal or another human-machine interface so that a human operator can use the control unit 30 to communicate with the lamp units 26. i.
  • Figure 2 shows that the airport may comprise a second airport navigation lights system 22'. It should be noted that the airport 10 may comprise two, three or more aeronautical ground light systems, wherein no aeronautical ground light is connected to two or more airport navigation lights systems at a given time.
  • the time interval between the current edge 46 and a second current edge 46' may be called a frame or time frame and is divided into e.g. 20 time slots.
  • a time slot is a time interval relative to the current edge point of time tedgei relative to the period.
  • all time slots have the same width, i.e. duration. This is advantageous, but not necessary.
  • the noise leff exceeds the noise threshold leff.thr in the time slots Si, S-io and Sn . As a consequence, they are not used for communication.
  • FIG 4 shows the structure of a low-information message Miow that is sent by the control unit 30 (cf. figure 2).
  • the low-information message Miow comprises a code word that may have 13 bits.
  • the low-information message Miow encodes one bit for each frame or half period, which equals to two bits per period.
  • the code word encodes the fact that the message sent is the low-information message.
  • the code word is followed by an active time slot mask. This is a sequence of bit values indicating whether or not a time slot Sj is active or not.
  • An active time slot is a low-noise time slot that is used for communication. Usually, all low-noise time slots are active time slots.
  • the peak of the respective signal determines with high accuracy the time position of the time slot (in this example: Se) along the period of the AC signal.
  • the processor 42 (cf. figure 2) measures the time at which it detects the marker bit relative to its internal clock 38 and calculates a time shift At between the time of the clock 38 and the point of time at which the marker bit was received.
  • the processor 42 calculates the middle of each time slot 3 ⁇ 4 by means of the time that is composed of the clocks time and the time shift.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Traffic Control Systems (AREA)

Abstract

La présente invention concerne un procédé de commande d'un système de feux de navigation d'aéroport (22), comprenant (a) une source d'alimentation (24) destinée à produire un courant alternatif (I) ; (b) une pluralité d'unités de lampe (26) qui - sont alimentées par la source d'alimentation (24) par l'intermédiaire d'un câble (25) et - comprennent un récepteur ; (c) au moins un éclairage au sol aéronautique (14.1) ; et (d) une unité de commande (30) qui - est connectée au câble (25) et - est agencée de façon à envoyer des messages aux unités de lampe (26) et à recevoir des messages provenant des unités de lampe (26) par l'intermédiaire du câble (25), le procédé comprenant les étapes suivantes consistant : (i) à déterminer un niveau de bruit pour une pluralité de créneaux temporels (S) au cours de la période du courant alternatif (I) ; (ii) à déterminer des créneaux temporels à faible bruit au cours desquels le niveau de bruit est inférieur à un seuil de bruit ; (iii) à envoyer un message à faibles informations (Mlow) codant la synchronisation d'au moins certains des créneaux temporels à faible bruit par rapport à la période par l'intermédiaire du câble ; et (iv) à envoyer des messages à informations élevées codant des instructions de commande pendant ces créneaux temporels à faible bruit.
EP18716643.4A 2017-04-18 2018-04-17 Procédé de commande d'un système de feux de navigation d'aéroport Active EP3473062B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18716643T PL3473062T3 (pl) 2017-04-18 2018-04-17 Sposób sterowania lotniskowym systemem świateł nawigacyjnych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17166891.6A EP3393212A1 (fr) 2017-04-18 2017-04-18 Procédé de commande d'un système de feux de navigation d'aéroport
PCT/EP2018/059769 WO2018192920A1 (fr) 2017-04-18 2018-04-17 Procédé de commande d'un système de feux de navigation d'aéroport

Publications (2)

Publication Number Publication Date
EP3473062A1 true EP3473062A1 (fr) 2019-04-24
EP3473062B1 EP3473062B1 (fr) 2021-08-11

Family

ID=58671363

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17166891.6A Withdrawn EP3393212A1 (fr) 2017-04-18 2017-04-18 Procédé de commande d'un système de feux de navigation d'aéroport
EP18716643.4A Active EP3473062B1 (fr) 2017-04-18 2018-04-17 Procédé de commande d'un système de feux de navigation d'aéroport

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17166891.6A Withdrawn EP3393212A1 (fr) 2017-04-18 2017-04-18 Procédé de commande d'un système de feux de navigation d'aéroport

Country Status (6)

Country Link
EP (2) EP3393212A1 (fr)
CN (1) CN109661859B (fr)
ES (1) ES2894695T3 (fr)
PL (1) PL3473062T3 (fr)
PT (1) PT3473062T (fr)
WO (1) WO2018192920A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9400847D0 (sv) * 1994-03-11 1994-03-11 Airport Tech Scandinavia Kommunikation på kraftkabel
KR100548367B1 (ko) * 2003-07-03 2006-02-02 엘지전자 주식회사 통신 단말기의 잡음 제거 방법
FR2865871B1 (fr) * 2004-01-29 2006-06-30 Augier S A Systeme et procede de communication par courant porteur dans un reseau d'eclairage
WO2008073322A1 (fr) * 2006-12-07 2008-06-19 Cooper Technologies Company Modulation de dispositifs d'éclairage de terrain d'aviation dissimulés
JP5448359B2 (ja) * 2007-05-30 2014-03-19 パナソニック株式会社 電力線通信方法、電力線通信装置、及び電力線通信システム
TWI371948B (en) * 2007-06-07 2012-09-01 Microelectronics Tech Inc System of satellite signal down conversion and reception and signal transmission method thereof
US9253851B2 (en) * 2011-12-12 2016-02-02 Bwt Property, Inc. Auto configuring runway lighting system
CN102664673B (zh) * 2012-04-25 2014-12-31 四川邮科通信技术有限公司 一种应用于gsm跳频网络的直放站数字处理系统及方法
EP2677740A1 (fr) * 2012-06-19 2013-12-25 poLight AS Procédé et système correspondant de réduction du bruit dans des conceptions de pompe de charge électronique
ITBO20130582A1 (it) 2013-10-22 2015-04-23 Telair S R L Gruppo elettrogeno, e relativo dispositivo di controllo.
WO2015067315A1 (fr) * 2013-11-08 2015-05-14 Marvel Digital Group Ltd. Procédé et ensemble permettant de transmettre des informations d'un expéditeur à un destinataire après une détermination sensorielle d'au moins un mouvement de muscles ou de tendons de l'expéditeur
JP6653421B2 (ja) * 2014-09-02 2020-02-26 パナソニックＩｐマネジメント株式会社 非接触受電機器および非接触給電機器、ならびに、これらを備えた非接触電力伝送システム
CN104580036B (zh) * 2014-12-26 2018-10-02 北京邮电大学 Lte系统物理层上行控制信道的半盲检测方法
CN105865458B (zh) * 2016-06-20 2018-09-04 中国地质大学（武汉） 一种led室内定位导航方法及定位导航系统

Also Published As

Publication number Publication date
EP3473062B1 (fr) 2021-08-11
CN109661859B (zh) 2021-06-01
WO2018192920A1 (fr) 2018-10-25
PL3473062T3 (pl) 2021-12-27
ES2894695T3 (es) 2022-02-15
CN109661859A (zh) 2019-04-19
EP3393212A1 (fr) 2018-10-24
PT3473062T (pt) 2021-10-19

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