EP0067089B1 - Dispositif à mémoire pour contrôle d'éclairage - Google Patents

Dispositif à mémoire pour contrôle d'éclairage Download PDF

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Publication number
EP0067089B1
EP0067089B1 EP82400876A EP82400876A EP0067089B1 EP 0067089 B1 EP0067089 B1 EP 0067089B1 EP 82400876 A EP82400876 A EP 82400876A EP 82400876 A EP82400876 A EP 82400876A EP 0067089 B1 EP0067089 B1 EP 0067089B1
Authority
EP
European Patent Office
Prior art keywords
lighting
light
battery
lamps
memorising
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.)
Expired
Application number
EP82400876A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0067089A1 (fr
Inventor
Guy Cosse
Bernard Serres
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0067089A1 publication Critical patent/EP0067089A1/fr
Application granted granted Critical
Publication of EP0067089B1 publication Critical patent/EP0067089B1/fr
Expired legal-status Critical Current

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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
    • 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
    • H05B47/28—Circuit arrangements for protecting against abnormal temperature

Definitions

  • the present invention relates to a memory device for lighting control. It applies in particular to the control of the lighting of public telephone booths which are connected to the public lighting network triggered at dusk and extinguished when it rises.
  • the lighting on and off control can be carried out by a day / night clock or by a photoelectric cell sensitive to natural lighting, depending on the location.
  • the present invention also applies to the control of the lighting of lampposts, showcases and light sources for signaling or security.
  • the object of the present invention is to remedy this drawback.
  • the device which is the subject of the invention therefore makes it possible to control “offline the correct operation of lighting which can be automatically or remotely controlled and for example provided for the night period, without the need to go on site during the operating period. and without remote information transmission.
  • the (or said) lighting means (s) to be controlled can (can) be provided (s) to operate for one or more time intervals.
  • the lighting can be periodic (case of public lighting) or not.
  • said storage means further comprises a thermistor with a negative temperature coefficient provided for optimizing the charge of said accumulator means as a function of ambient temperature.
  • a thermistor with a negative temperature coefficient provided for optimizing the charge of said accumulator means as a function of ambient temperature.
  • said signaling means comprise a light source provided for emitting light after operation of said lighting means.
  • This light source can be a light emitting diode.
  • Said electric current accumulator means can thus charge when the lighting is on and discharge, when the latter is off, in said diode. The lighting of the latter then testifies a posteriori of the proper functioning of the lighting to be checked.
  • the device which is the subject of the invention, it also comprises a clock and counting means, provided for interrupting said signaling after a determined time. It is thus possible to limit the discharge time of the means for accumulating electric current in the event of failure of the lighting means and to avoid damaging these accumulator means.
  • the device which is the subject of the invention can also be applied to the control of the operation of an appliance, this appliance being associated with a light source so that the latter works if and only if said appliance works or has worked. We are thus brought back to the control of this light source.
  • This embodiment comprises, first of all, a stabilized DC power supply 2 .
  • This power supply 2 comprises a transformer 3 whose primary 4 is for example connected to the AC 220 V sector which can also be used to supply the lamps 1 with current.
  • the secondary 5 of the transformer 3 supplies a rectifier bridge 6, for example of the GRAETZ bridge type, which itself supplies a first electrical resistance 7, making it possible to reduce the voltage at the output of the rectifier bridge 5, filtering means constituted by a electrolytic capacitor 8 and another capacitor 9, and a voltage stabilizing Zener diode 10.
  • the power supply 2 is thus stabilized and capable of delivering a direct current and has a first output terminal B 1 at a positive potential and a second output terminal B 2 at a zero potential. These two terminals correspond to those of the Zener diode 10.
  • the device according to the invention shown in the appended drawing also comprises means 11 for storing information on the correct operation of the lamps 1.
  • These means 11 for storing comprise a storage battery 12, a transistor 13 of the NPN type, phototransistors 14 the number of which is equal to that of the lamps 1, each of them being associated with one of these lamps 1 and arranged to receive the light that this lamp is capable of emitting when it operates, a thermistor 15 with coefficient negative temperature, a diode 16 and a second electrical resistance 17.
  • the NPN-type transistor 13 is connected by its collector to the first terminal 8 1 and by its emitter to the second electrical resistance 17.
  • the latter intended to optimize the charging current of the storage battery 12, is connected to a diode 16, itself connected to this storage battery 12 by the positive pole P thereof, the negative pole N of the battery 12 being connected to the second output terminal B 2 of the supply 2 and put by elsewhere grounded.
  • the diode 16 is mounted so as to be reverse biased with respect to the battery 12.
  • the phototransistors 14 are connected in series: the emitter of one is connected to the collector of the next, and so on.
  • the collector of the first phototransistor in the series obtained is connected to the first output terminal B 1 of the power supply 2 and the emitter of the last phototransistor of this series is connected to the base of transistor 13 of NPN type, via of thermistor 15 with negative temperature coefficient.
  • the device according to the invention shown also includes a clock 18 and counting means or counter 19.
  • the clock 18 is for example produced, in a manner known in the prior art, using two NON- OR 18a and 18b, a fixed resistor 18c, an adjustable resistor 18d, provided so that the frequency of the clock 18 is adjustable, and a capacitor 18e.
  • the counter 19 is of the kind sold by MOTOROLA under the reference MC 14521 (CMOS integrated circuit counters).
  • a first input 19a of the counter 19, corresponding to the resetting of the latter, is connected to a point S taken between the second resistor 17 and the diode 16.
  • An output 19b of the counter 19 is connected to an input E 1 d 'a first NOR gate 20 whose other input E 2 is connected to said point S.
  • the output of this first gate 20 is connected to the two inputs of a second NOR gate 21 whose output is connected to the input of the clock 18.
  • the output of this clock 18 is connected to a second input 19c of the counter 19.
  • the latter is also connected, respectively by two terminals 19d and 19e, to the positive pole P of the battery 12 and to ground, so as to be supplied with electric current.
  • the battery 12 supplies (in a manner not shown) with electric current the four NOR doors 18a, 18b, 20 and 21.
  • a third electrical resistance 22 is, on one side, connected to ground and, on the other, to the other input E 2 of the first NOT OR gate 20, to fix the potential of this other input E 2-
  • the device according to the invention shown finally comprises signaling means 23 comprising a light-emitting diode 24 connected to the collector of a PNP-type transistor 25 via a fourth electrical resistance 26 provided for limiting the current in the light-emitting diode 24.
  • the emitter of the PNP type transistor 25 is connected to the positive pole P of the battery 12.
  • the light-emitting diode 24 is also connected to ground and of course mounted so as to be biased directly relative to the battery 12 when the PNP type transistor 25 conducts electric current.
  • the base of this PNP type transistor 25 is connected, via a fifth electrical resistor 27 provided for the biasing of this transistor, to the output of the second NOR gate 21.
  • a sixth resistor 28 also provided for the bias of the PNP type transistor 25 is mounted between the positive pole P of the battery 12 and a point between the fifth resistor 27 and the base of the PNP type transistor 25.
  • the particular embodiment of the device which is the subject of the invention, shown in the accompanying drawing, makes it possible to control several lamps 1, using several phototransistors 14 mounted in such a way that the light-emitting diode 24 is only lit if all of the 1 lamps to control worked. (The mounting of the phototransistors 14 has been indicated previously). Of course, said embodiment could include only a phototransistor 14 if there was only one lamp 1 to be checked.
  • the input of the clock 18 and the base of the PNP transistor 25 are therefore also brought to a high voltage level. Consequently, the clock 18 is blocked and the PNP-type transistor 25 is also blocked, which causes the light-emitting diode 24 (supposed to be on during the previous day) to go out and the discharge of the battery 12 to stop. this light emitting diode 24.
  • the light-emitting diode 24 therefore lights up (thus testifying to the proper functioning of the lamps 1 during the previous night), since the battery 12 can then discharge there.
  • the diode 16 makes it possible to prevent the discharge of the battery 12 from taking place in the direction of the transistor 13 of the NPN type and also makes it possible to prevent the said point S from being permanently at a positive potential).
  • the battery 12 is recharged and so on. If at least one of the lamps 1 does not come back on, due to a power failure or a malfunction of this lamp, the battery 12 continues to discharge for a certain time. After a determined number of pulses (corresponding for example to 20 hours of discharge), the output 19b of the counter 19 is brought to logic level 1. It is therefore the same for the input E i of the first gate 20 and, consequently, for the exit from the second door 21, therefore for the entry of the clock 18, the latter finding itself blocked. Likewise, the PNP type transistor 25, the base of which is then brought to a high voltage level, is also blocked.
  • the light-emitting diode 24 goes out and the battery 12 ceases to discharge and therefore does not drain completely, which would have a detrimental effect on its service life.
  • Counter 19 is reset to zero.
  • Electrolytic capacitor 8 100 ⁇ F.
  • Phototransistors 14, transistor 13 of NPN type and transistor 25 of PNP type are of the type which have BP103B, 2N2222 and BC179 respectively.
  • the transformer 3 is for example designed to give 12 V alternating to the secondary 5, when the primary 4 is connected to the mains (220 V alternating).
  • the power of this transformer 3 is for example 3 VA.
  • the Zener diode 10 is for example provided for stabilizing the voltage at 8 V between its terminals B 1 and B 2 and the storage battery 12 is for example a miniature storage battery with cadmium-nickel, the capacity of which is approximately 500 milliamps / hour and which, when charged, has a voltage of 5 V between its terminals.
  • the thermistor 15 with a negative temperature coefficient having for example a resistance of 16 kfl at 20 ° C., makes it possible to optimize the charge of the battery 12 as a function of the ambient temperature at which the accumulators are very sensitive. Its addition to the device according to the invention makes it possible to hope for the battery 12 given in example above, a lifetime of the order of 2000 cycles (charges-discharges), or approximately 6 years, at the rate of one cycle per 24 hours.
  • the charge-discharge energy balance corresponds, for a discharge of the accumulator to 60%, to 6 hours of charge (period of lighting of lamps 1), which is a minimum for public lighting in summer period, and 20 hours of discharge (period of extinction of lamps 1), which leaves plenty of time to perform the check.
  • the sum of these two durations (6 hours and 24 hours) being greater than 24 hours, there is no uncertainty: if the light-emitting diode 24 is lit during the control, it is that the lamps 1 have operated for the ignition period.
  • the battery 12 can be incompletely charged and, depending on the moment of observation, the light-emitting diode 24 can be lit or not. When the lighting fault is clear, the light-emitting diode will certainly be off during the next observation.
  • the device according to the invention which has been described, can be placed in a box the dimensions of which can be of the order of 10 ⁇ 7 ⁇ 5 cm.
  • the photodetector (s) 14 as well as the light-emitting diode 24 can be integrated into this housing or dissociated from it. Of course, several photodetectors 14 could be used per lamp 1.
  • the device according to the invention which therefore allows a "deferred control of lighting means, can, depending on its cost and according to the importance attached to the monitoring of these lighting means, be used permanently or occasionally, in depending on the reliability of the lighting means monitored.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP82400876A 1981-05-14 1982-05-11 Dispositif à mémoire pour contrôle d'éclairage Expired EP0067089B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8109611 1981-05-14
FR8109611A FR2506110A1 (fr) 1981-05-14 1981-05-14 Dispositif a memoire pour controle d'eclairage

Publications (2)

Publication Number Publication Date
EP0067089A1 EP0067089A1 (fr) 1982-12-15
EP0067089B1 true EP0067089B1 (fr) 1986-01-02

Family

ID=9258439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400876A Expired EP0067089B1 (fr) 1981-05-14 1982-05-11 Dispositif à mémoire pour contrôle d'éclairage

Country Status (4)

Country Link
US (1) US4507655A (enrdf_load_stackoverflow)
EP (1) EP0067089B1 (enrdf_load_stackoverflow)
DE (1) DE3268243D1 (enrdf_load_stackoverflow)
FR (1) FR2506110A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150372B (en) * 1983-11-25 1986-12-10 Ferranti Plc Lamp failure detector
US5018226A (en) * 1988-08-19 1991-05-28 William Price Williams Apparatus and method for transporting an injured person
GB8821344D0 (en) * 1988-09-12 1988-10-12 Tailor Made Systems Ltd Recording condition of equipment
DE19833274C1 (de) * 1998-07-24 1999-10-07 Deutsche Telekom Ag Beleuchtungsüberwachung für Telefonhäuschen
US10184624B2 (en) * 2007-05-31 2019-01-22 Tseng-Lu Chien Multiple functions LED night light
DE102005062020A1 (de) * 2005-12-22 2007-01-25 Daimlerchrysler Ag Vorrichtung zur Information bei Leuchtenausfall an Fahrzeugen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186760B (de) * 1963-03-27 1965-02-04 Heinrich Hartkorn Jun Schaltungsanordnung zur kontaktlosen UEberwachung von Verbraucherstromkreisen
US3412395A (en) * 1966-01-14 1968-11-19 Ralph E Kiene Jr Current actuated switch for cash register
US3728705A (en) * 1970-05-04 1973-04-17 Wagner Electric Corp Lamp outage indicator
US3710367A (en) * 1970-10-28 1973-01-09 Gen Motors Corp Lamp failure indicator for a dual-filament lamp
US4092642A (en) * 1976-10-22 1978-05-30 Delphic Limited Plural sensor monitoring and display device

Also Published As

Publication number Publication date
US4507655A (en) 1985-03-26
DE3268243D1 (en) 1986-02-13
EP0067089A1 (fr) 1982-12-15
FR2506110B1 (enrdf_load_stackoverflow) 1984-05-25
FR2506110A1 (fr) 1982-11-19

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