EP0586322A1 - Einrichtung zum Ermitteln und Anzeigen von defekten Lampen in einer Beleuchtungsanlage - Google Patents

Einrichtung zum Ermitteln und Anzeigen von defekten Lampen in einer Beleuchtungsanlage Download PDF

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Publication number
EP0586322A1
EP0586322A1 EP93480122A EP93480122A EP0586322A1 EP 0586322 A1 EP0586322 A1 EP 0586322A1 EP 93480122 A EP93480122 A EP 93480122A EP 93480122 A EP93480122 A EP 93480122A EP 0586322 A1 EP0586322 A1 EP 0586322A1
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EP
European Patent Office
Prior art keywords
lamp
circuit
flip
flop
output
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Withdrawn
Application number
EP93480122A
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English (en)
French (fr)
Inventor
Francis Guillot
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Individual
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Individual
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Publication date
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Publication of EP0586322A1 publication Critical patent/EP0586322A1/de
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    • 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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit

Definitions

  • the present invention relates to a system for detecting and signaling faulty lamps in a lighting network and more particularly to a system of the type comprising a basic module for each of the lamps in the network comprising a circuit for monitoring the supply characteristics of the lamp suitable for transmitting by means of network wires a signal identifying the lamp when the latter fails by means of a carrier frequency signal.
  • monitoring systems are of two kinds.
  • the monitoring system is operated during periods of non-operation of the lighting network, that is to say during the hours of the day during which the lamps are not supplied.
  • Such a system has two drawbacks.
  • the detection takes place only during the periods when the lamps are not powered, the system requires the use of an independent electrical power source, hence a significant energy expenditure for the operation of the system.
  • the failure of the lamps occurring only during the operating periods the lamp will remain off during the operating period which precedes the non-operation period during which the failure is detected, without being able to be replaced quickly.
  • the second category of monitoring systems uses periods of network operation for the detection of failed lamps. This type of system overcomes the drawbacks mentioned above since on the one hand the system can use the supply from the lighting network as its own supply, and on the other hand the detection of the failure of a lamp can be detected without waiting, and consequently the replacement can be carried out quickly.
  • each lamp post is equipped with a transmitter module comprising a current consumption detector whose signal controls an oscillator in order to transmit a detection signal on the AC supply network.
  • This detector consists of a measurement of the voltage across a resistor in series with the lamp.
  • a disadvantage presented by a system of the type described above is that it is necessary to provide a microprocessor which takes charge of the initiative of transmitting the identification code of the defective lamp after having ensured that another microprocessor from another lamppost is not transmitting at the same time.
  • the absence of signal transmission by a microprocessor makes believe that the lamp is still in perfect working order whereas it is perhaps the microprocessor which does not function any more.
  • the object of the invention is therefore to provide a detection and signaling system for a faulty lamp in a lighting network, simple and effective, not entailing additional consumption of electrical energy for detecting the failure of the lamp, and not requiring the use of a sophisticated signaling circuit at the level of each lamp post.
  • the main object of the invention is thus a faulty lamp detection and signaling system of the type using the wires of the lighting network during operation to transmit the faulty lamp identification signal, in which the circuit for monitoring the power supply characteristics of the lamp includes a first detection circuit for detecting the phase of the lamp supply current, a second detection circuit for detecting the phase of the lamp supply voltage, and a comparator means for determining the phase difference between the current and the supply voltage and triggering the transmission of the faulty lamp identification signal when the value of this phase shift is outside predetermined limits.
  • Another object of the invention is a system for detecting and signaling malfunctions of lamps in a lighting network comprising a basic module for each of the lamps and a management module transmitting a call message at intervals. regular to each of the base modules, so as to trigger from the called base module, the subsequent transmission of a response message comprising a faulty lamp identification signal.
  • a lighting network such as a public lighting network installed in an urban area generally includes power supply cabinets for a set of 100 to 150 lighting lamps. As illustrated in FIG. 1, the supply cabinet 10 receives the three high voltage phases which are transformed into three low voltage phases upon arrival in the cabinet, and supplies the lighting area by means of three lines 12, 14 and 16 corresponding to the three low voltage phases. Each of the lines 12, 14, and 16 supplies at most 50 lighting lamps.
  • the power supply cabinet 10 comprises a management module 18 supplied by the three low voltage phases, and intended to monitor the state of the lamps in the area. To do this, each lamp 20 is connected to the supply line 12, 14 or 16 by means of a base module 22.
  • the base module 22 is located at the base of the lamp post or candelabra carrying the lamp. It has a different configurable identification and location code for each lamp in the same phase.
  • the management module 18 located in the supply cabinet 10 sequentially interrogates each base module 22 via the supply network, that is to say using lines 12, 14 or 16.
  • Each management module includes a microprocessor, a read-only memory of the REPROM type containing the data of the zone, a power supply card. It has a serial channel 24 of the RS232 type which allows the connection of a terminal on the site and also a serial channel 26 of the RS232 type allowing dialogue with a central station via a modem and the telephone network. It is thus possible to obtain information on the management module from a Minitel station.
  • the management module provides many functions which are not within the scope of the invention, but which deserve to be stated.
  • the management module keeps a logbook giving the list of the last 50 faults with the date and time of appearance and possibly the date and time of disappearance. It contains a network description table as well as a correspondence table between the phase, base module, candelabra and lamp numbers.
  • the management module lists defective lamps, but also mains faults, network ignition faults, network extinction faults, high voltage or low voltage faults ...
  • the management module 18 transmits a message at regular intervals to the base modules.
  • the transmission takes place by means of a carrier current of a frequency different from that of the supply current such as a frequency of 50 kHz.
  • the modulation of the carrier current by the digital data of the message can be of the frequency hopping modulation type.
  • the data is transmitted at the speed of 300 bauds and the dialogue mode is of the "alternate" type.
  • the above characteristics given by way of example can be modified to adapt to another embodiment without departing from the scope of the invention.
  • the management module transmits the carrier signal for 100 ms, then sends the identification code of the called base module, repeatedly for approximately 500 ms. This repetition is intended for the basic module to recognize its code 4 times consecutively before starting the response procedure, so as to avoid problems due to noise
  • the response of the called base module is then made after a silence of 500 ms to avoid any overlapping of the data on the line.
  • the carrier signal is then transmitted for 500 ms.
  • the response message is also sent for 500 ms.
  • the carrier signal alone is again transmitted for approximately 500 ms.
  • the management module sends a message to a new basic module by modifying the identification code contained in the message.
  • the management module is connected on each phase to 50 basic modules, each basic module will be interrogated approximately every 4 minutes.
  • each module receives the low voltage supply 30 which is, for example, the supply from the public network of 220 volts at a frequency of 50 Hz.
  • An interface circuit 32 comprising a transformer and a low value capacity, allows the modulated carrier signal of 50 kHz to be transmitted to a modem 34, while the supply current is blocked thanks to the high impedance of the circuit d 'interface 32 due to the low capacity it contains.
  • a plug circuit 36 tuned to the frequency of 50 kHz blocks the carrier signal and allows only the supply current of frequency 50 Hz to pass.
  • the essential element of the basic module is the lamp failure detection circuit 40 which comprises a voltage phase measurement circuit 40-1 connected across the supply voltage, a intensity phase measurement circuit 40-2 which is connected in series with the lamp 20, on the supply voltage, and a phase measurement measurement circuit 40-3 between the supply voltage and the supply current .
  • the circuit 40-3 also has the function of memorizing the state of the lamp.
  • the signal modulated by the message from the management module is received by the modem 34 which is in mode reception when the base module is waiting to receive a message.
  • the identification code provided by the modem 34 from the received message is transmitted to an encoder / decoder 42 for decoding. If the encoder / decoder 42 recognizes the identification code of the basic module, it triggers the response cycle by sending a signal on the line 44 to a sequential logic (LS) 46.
  • LS sequential logic
  • the latter is simply a ring counter clocked by a clock 48 of period 500 ms.
  • a ring counter that can be used here is for example the circuit referenced 74HC4017 from National Systems.
  • the identification code of the basic module is provided by the code element 54 which is simply a pin comprising a set of earth connections (here 8 connections) some of which are cut during assembly and represent "1", then that the intact connections represent "0".
  • the identification code comprises 8 bits in the embodiment described here. However, it could include more or less than 8 bits in other embodiments where the number of lamps to be monitored by the same management module would be more or less significant.
  • the identification code supplied by the code element 54 is juxtaposed with a bit giving the state of the lamp supplied by the lamp failure detection circuit 40 on line 56.
  • the binary word formed by the identification code of the base module and the lamp status bit is encoded by the encoder / decoder 42 and transmitted over the network to the management module via the module 34 and the interface circuit 32.
  • the sequential logic 46 After waiting approximately 500 ms after the transmission of the response message, the sequential logic 46 transmits a restoration signal to the lamp failure detection circuit 40 on line 58 and returns the modem 34 to reception mode.
  • the lamp has been shown schematically equivalent to a resistance R.
  • the mercury vapor or high pressure sodium type lamp is preceded by an assembly formed by a capacitor C in parallel and a self L (the ballast) in series.
  • the lamp is supplied by a voltage V a and a current I.
  • V a the voltage
  • I the current passing through the resistor R.
  • all the current I passes through the capacitance C (of value important).
  • R, L and C depend on the lamp used, but must be chosen so that the value of Cos ⁇ is close to 1 to be accepted by EDF. The phase shift is therefore close to 0 when the lamp is operating.
  • the supply voltage V a is first applied to a filter constituted by the capacitance C1, the resistance R1 and the capacitance C2 .
  • the filtered voltage is then clipped by the diode 60 so as to leave only the positive half-wave of the filtered supply voltage.
  • the resulting voltage V1 is then applied to a photocoupler 62 so as to obtain a voltage V2 of rectangular shape.
  • the first curve represents the voltage V1 at the output of the diode 60 (see FIG. 4) composed of the positive half-vibrations of the voltage, and the start of the half-vibrations negative (due to clipping of the diode).
  • V1 is then inverted by the inverter circuit 68 whose output serves as an input to a flip-flop D 70 which is made active by the clock input CL in synchronization with the frequency of the supply voltage.
  • the third diagram of FIG. 5 represents the signal V3 at the output of the diode 64, which is the image of the current whose diode has allowed the positive half-waves to pass. As we saw previously, the current is phase shifted by an angle ⁇ with respect to the voltage.
  • the fourth diagram represents the voltage V4 at the output of comparator 66.
  • the representative curve is of rectangular shape, with a value equal to O when the value of V3 exceeds the threshold value V s .
  • the voltage V4 is applied to a flip-flop D 72 from which the output Q is taken to supply the signal on line 56 to the encoder / decoder (see FIG. 2). It is therefore seen that, when the flip-flop 72 is sampled, it provides at output a value V c equal to V4. This sampling is obtained by the clock input from the output of an AND circuit 74, the two inputs of which are, on the one hand, the voltage V b at the output. Q ⁇ of flip-flop 70, and on the other hand the exit Q ⁇ of scale 72.
  • the voltage V4 at the input D of the flip-flop 72 corresponds to the curve in solid lines of the third diagram, representative of the signal V3, whose phase shift relative to the voltage is equal to ⁇ .
  • V1, V2 0.
  • the value V b of the output Q ⁇ of the flip-flop 70 becomes zero during the time of the positive half-wave of the supply voltage.
  • the second input of the AND circuit 74 is therefore at 1, which allows the signal V b to be restored at the output of the AND circuit 74.
  • V2 goes to its high value and V b which also becomes high is transmitted, via the circuit 74 to the clock input CL of the flip-flop 72.
  • the latter is sampled and provides on its output Q, a binary signal V c corresponding to the value of V4 at this time, that is to say a bit "0" which is juxtaposed with the identification code transmitted by the base module to the management module.
  • the image of the current is given by the dotted curve on the third diagram of FIG. 5, either with a phase shift of - ⁇ / 2 as we saw previously or even 3 ⁇ / 2.
  • the rising edge A of the value V2 which is used for the sampling of the flip-flop 72 cannot have place during the negative slot of V4
  • the front A occurs with a phase shift of ⁇ after the origin.
  • the negative slot of V4 takes place between the values 3 ⁇ / 2 + ⁇ s and 5 ⁇ / 2 - ⁇ ' s therefore well after the appearance of the edge A.
  • the next rising edge B of the value V2 occurs at 3 ⁇ , ie necessarily after the end of the negative slot of V4.

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP93480122A 1992-08-31 1993-08-30 Einrichtung zum Ermitteln und Anzeigen von defekten Lampen in einer Beleuchtungsanlage Withdrawn EP0586322A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210546A FR2695286B1 (fr) 1992-08-31 1992-08-31 Système de détection et de signalisation de lampes défaillantes dans un réseau d'éclairage.
FR9210546 1992-08-31

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EP0586322A1 true EP0586322A1 (de) 1994-03-09

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EP93480122A Withdrawn EP0586322A1 (de) 1992-08-31 1993-08-30 Einrichtung zum Ermitteln und Anzeigen von defekten Lampen in einer Beleuchtungsanlage

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EP (1) EP0586322A1 (de)
FR (1) FR2695286B1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637195A1 (de) * 1993-07-30 1995-02-01 S.A. Metas Anordnung zur Überwachung von Betriebszustand von Lampen
WO1996036202A1 (fr) * 1995-05-12 1996-11-14 Duranton Rene Dispositif pour la commande et la surveillance a distance d'une lampe a decharge
EP0746183A1 (de) * 1995-05-31 1996-12-04 S.A. Metas Elektronische Vorrichtung zur Fernerkennung von Funktionsstörungen in Lampen
ES2116211A1 (es) * 1994-07-12 1998-07-01 Ingequr S A Sistema de gestion y control con informacion centralizada del alumbrado publico.
ES2162595A1 (es) * 2000-02-17 2001-12-16 Exposito Francisco Cantero Dispositivo de proteccion para el alumbrado.
WO2002067637A1 (en) * 2001-02-16 2002-08-29 Raynesway Construction Southern Ltd Road lighting system
GB2392326A (en) * 2002-08-20 2004-02-25 Christopher Laurie Malthouse System for monitoring street lighting
DE10238818A1 (de) * 2002-08-23 2004-03-04 Wacker-Chemie Gmbh Cyclodextrinreste aufweisende Organosiliciumverbindungen
EP1657967A1 (de) * 2004-11-12 2006-05-17 Koninklijke KPN N.V. Filter mit Sicherung zum Einsatz in einem Lichtmast
WO2008096023A1 (es) * 2007-02-06 2008-08-14 Sociedad Española De Construcciones Eléctricas, S.A. Dispositivo y sistema para control de punto de luz en redes de alumbrado público
US7761260B2 (en) 2005-09-12 2010-07-20 Abl Ip Holding Llc Light management system having networked intelligent luminaire managers with enhanced diagnostics capabilities
US7817063B2 (en) 2005-10-05 2010-10-19 Abl Ip Holding Llc Method and system for remotely monitoring and controlling field devices with a street lamp elevated mesh network
US8140276B2 (en) 2008-02-27 2012-03-20 Abl Ip Holding Llc System and method for streetlight monitoring diagnostics
CN112954853A (zh) * 2021-02-04 2021-06-11 深圳爱克莱特科技股份有限公司 Led屏幕灯点故障检测装置及方法
CN114224268A (zh) * 2022-02-24 2022-03-25 极限人工智能有限公司 图像处理装置以及内窥镜影像系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637750A1 (fr) * 1988-10-10 1990-04-13 Ruaux Christian Dispositif et procede de transmission d'informations sur ligne electrique
DE9111867U1 (de) * 1991-09-23 1991-11-21 Siemens AG, 80333 München Schaltungsanordnung zum Überwachen von mit Wechselstrom gespeisten Gasentladungslampen
FR2673296A1 (fr) * 1991-02-27 1992-08-28 Forclum Force Lumiere Elect Procede et dispositif de surveillance d'au moins une source de rayonnement lumineux.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637750A1 (fr) * 1988-10-10 1990-04-13 Ruaux Christian Dispositif et procede de transmission d'informations sur ligne electrique
FR2673296A1 (fr) * 1991-02-27 1992-08-28 Forclum Force Lumiere Elect Procede et dispositif de surveillance d'au moins une source de rayonnement lumineux.
DE9111867U1 (de) * 1991-09-23 1991-11-21 Siemens AG, 80333 München Schaltungsanordnung zum Überwachen von mit Wechselstrom gespeisten Gasentladungslampen

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637195A1 (de) * 1993-07-30 1995-02-01 S.A. Metas Anordnung zur Überwachung von Betriebszustand von Lampen
WO1995004446A1 (fr) * 1993-07-30 1995-02-09 Spie Trindel Dispositif a microprocesseur pour le controle et la gestion d'elements d'eclairage, et procede utilisant un tel dispositf
ES2116211A1 (es) * 1994-07-12 1998-07-01 Ingequr S A Sistema de gestion y control con informacion centralizada del alumbrado publico.
WO1996036202A1 (fr) * 1995-05-12 1996-11-14 Duranton Rene Dispositif pour la commande et la surveillance a distance d'une lampe a decharge
FR2734118A1 (fr) * 1995-05-12 1996-11-15 Duranton Rene Dispositif pour la commande et la surveillance a distance d'une lampe a decharge
EP0746183A1 (de) * 1995-05-31 1996-12-04 S.A. Metas Elektronische Vorrichtung zur Fernerkennung von Funktionsstörungen in Lampen
ES2162595A1 (es) * 2000-02-17 2001-12-16 Exposito Francisco Cantero Dispositivo de proteccion para el alumbrado.
WO2002067637A1 (en) * 2001-02-16 2002-08-29 Raynesway Construction Southern Ltd Road lighting system
GB2392326A (en) * 2002-08-20 2004-02-25 Christopher Laurie Malthouse System for monitoring street lighting
US7235186B2 (en) 2002-08-23 2007-06-26 Wacker Chemie Ag Organosilicon compounds comprising cyclodextrin radicals
DE10238818A1 (de) * 2002-08-23 2004-03-04 Wacker-Chemie Gmbh Cyclodextrinreste aufweisende Organosiliciumverbindungen
WO2006050986A1 (en) * 2004-11-12 2006-05-18 Koninklijke Kpn N.V. A filter with a fuse, for use in a lamppost
EP1657967A1 (de) * 2004-11-12 2006-05-17 Koninklijke KPN N.V. Filter mit Sicherung zum Einsatz in einem Lichtmast
US8260575B2 (en) 2005-09-12 2012-09-04 Abl Ip Holding Llc Light management system having networked intelligent luminaire managers
US7761260B2 (en) 2005-09-12 2010-07-20 Abl Ip Holding Llc Light management system having networked intelligent luminaire managers with enhanced diagnostics capabilities
US7911359B2 (en) 2005-09-12 2011-03-22 Abl Ip Holding Llc Light management system having networked intelligent luminaire managers that support third-party applications
US8010319B2 (en) 2005-09-12 2011-08-30 Abl Ip Holding Llc Light management system having networked intelligent luminaire managers
US7817063B2 (en) 2005-10-05 2010-10-19 Abl Ip Holding Llc Method and system for remotely monitoring and controlling field devices with a street lamp elevated mesh network
WO2008096023A1 (es) * 2007-02-06 2008-08-14 Sociedad Española De Construcciones Eléctricas, S.A. Dispositivo y sistema para control de punto de luz en redes de alumbrado público
US8140276B2 (en) 2008-02-27 2012-03-20 Abl Ip Holding Llc System and method for streetlight monitoring diagnostics
US8442785B2 (en) 2008-02-27 2013-05-14 Abl Ip Holding Llc System and method for streetlight monitoring diagnostics
US8594976B2 (en) 2008-02-27 2013-11-26 Abl Ip Holding Llc System and method for streetlight monitoring diagnostics
CN112954853A (zh) * 2021-02-04 2021-06-11 深圳爱克莱特科技股份有限公司 Led屏幕灯点故障检测装置及方法
CN112954853B (zh) * 2021-02-04 2022-04-29 深圳爱克莱特科技股份有限公司 Led屏幕灯点故障检测装置及方法
CN114224268A (zh) * 2022-02-24 2022-03-25 极限人工智能有限公司 图像处理装置以及内窥镜影像系统
CN114224268B (zh) * 2022-02-24 2022-05-03 极限人工智能有限公司 图像处理装置以及内窥镜影像系统

Also Published As

Publication number Publication date
FR2695286B1 (fr) 1994-10-14
FR2695286A1 (fr) 1994-03-04

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