EP3764751A2 - Strassenbeleuchtung für eine zentralisierte steuerung, und entsprechendes steuerungsverfahren - Google Patents

Strassenbeleuchtung für eine zentralisierte steuerung, und entsprechendes steuerungsverfahren Download PDF

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Publication number
EP3764751A2
EP3764751A2 EP20185386.8A EP20185386A EP3764751A2 EP 3764751 A2 EP3764751 A2 EP 3764751A2 EP 20185386 A EP20185386 A EP 20185386A EP 3764751 A2 EP3764751 A2 EP 3764751A2
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European Patent Office
Prior art keywords
module
luminaire
power supply
led
parameters
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EP20185386.8A
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English (en)
French (fr)
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EP3764751A3 (de
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Corneliu Fridgant
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Individual
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Individual
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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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs

Definitions

  • the present invention relates to the technical field of street lighting and luminaires arranged in the public domain, and more specifically to street lighting architecture for centralized management and a relative management method.
  • a first problem posed by the implementation and management of street lighting is that of maintenance which is, today most often, based on human records on site.
  • the operator must put the lighting on forcibly during the day so that specialized teams can go to the site and take note of the number and references of defective parts.
  • the luminaires being, in general, placed at the top of high poles, it is then necessary to resort to specialized equipment and maintenance teams, in particular personnel authorized to work under voltage, and having nacelles to reach the upper parts of the poles. on which the lights are placed.
  • a second problem that arises for the manager of a street lighting is that of the stock of spare parts.
  • each luminaire is powered by a specific power supply, which is the most sensitive and fragile part of an LED luminaire. This imposes strong constraints on stocks and numerous spare parts.
  • a third problem with which the manager of a park of public luminaires is confronted is that of the fact that conventional public luminaires are extremely sensitive to the failure of an element component such as an LED. Indeed, the LEDs of the luminaires being wired in series, when an LED is out of service, the entire series of LEDs appears to be defective, rendering the luminaire out of service.
  • the object of the present invention is to propose a new lighting architecture which is particularly suitable for producing a park of street lighting which can be managed centrally.
  • a second object of the present invention consists in providing a luminaire device allowing predictive analysis of breakdowns of the essential components of this luminaire.
  • a third object of the present invention is to provide a structure of luminaires making it possible to significantly reduce maintenance costs.
  • a fourth object of the present invention is to provide an LED plate suitable for a high-performance luminaire, allowing predictive failure management.
  • the first module comprises a first module for measuring the input voltage and current parameters as well as a second module for measuring the voltage and current parameters at the output of said power supply unit.
  • the second module comprises a third measurement module for measuring the operating parameters of said LED plate.
  • the second module comprises wireless communication means, for example of the LoRa type, allowing communication of incidents and statistical data of the operation of the luminaire to a gateway connected to the Internet network.
  • Another object of the invention is to provide an LED plate intended for lighting, comprising a set of LEDs organized according to a mesh of LEDs comprising a set of P branches (410, 420, 430, 440, etc.) each comprising N LEDs (410-1, 410-2, ..., 410-n), in which the P branches are connected in parallel, and wherein each individual LED of the first branch is further connected in parallel to an LED of a corresponding rank of the second branch; and wherein each individual LED of the P-th branch is connected in parallel with an LED of a corresponding rank of the P-1-th branch; and each individual LED of all the other branches, with the exception of branches n ° 1 and P, are connected in parallel to two LEDs respectively coming from a previous branch and from a following branch.
  • P branches 410, 420, 430, 440, etc.
  • each luminaire is organized according to an architecture illustrated in the figure 1 , based on a set of four modules (referenced 105L, 105U, 105S and 105G, the latter not being shown).
  • the luminaire consists of a mast (already existing) 10 fixed to the ground, housing within it two elements 1 and supporting the element 2 respectively lower and upper.
  • the lower element 1 comprises in particular a first module 100 (internal ref 105L) coupled to a power supply 90, which may be any generic power supply or even a power supply present in an already existing luminaire, preferably equipped with a dimming interface ( “Dimming” in Anglo-Saxon literature).
  • a power supply 90 which may be any generic power supply or even a power supply present in an already existing luminaire, preferably equipped with a dimming interface ( “Dimming” in Anglo-Saxon literature).
  • the upper element 2 housed at the top of the mast, comprises a light plate 400, equipped with a set of LEDs, coupled to a second module 200 (internal ref 105U) and communicating with the first module 100 located in the lower part of the mast.
  • a third module 300 (ref 105S) is also coupled to the block 200 and serves as a specific block comprising one or more sensors which will be described below.
  • the architecture also behaves a fourth module 600 (ref 105G), not shown in the figure 1 , which serves as a gateway as shown in figure 6 , and which makes it possible to centralize and report all monitoring information and statistics relating to a dedicated management server.
  • a fourth module 600 (ref 105G), not shown in the figure 1 , which serves as a gateway as shown in figure 6 , and which makes it possible to centralize and report all monitoring information and statistics relating to a dedicated management server.
  • the first module 100 comprises a first interface 50 allowing the connection of conventional power supply cables (Phase, Neutral and Earth), a second interface 30 allowing the connection of cables for coupling to the power supply 90 and finally a third interface 40 based on a cable allowing coupling to the second module 200.
  • first interface 50 allowing the connection of conventional power supply cables (Phase, Neutral and Earth)
  • second interface 30 allowing the connection of cables for coupling to the power supply 90
  • a third interface 40 based on a cable allowing coupling to the second module 200.
  • the interface and the corresponding cable will be considered under the same numerical reference.
  • the detail of the connection of the first module 100 to the generic power supply 90 is illustrated in the figure 2 , where it can be seen that the module 100 is coupled to the generic power supply 90 via the interface 30 which is broken down into three sets of connectors, of the IP68 type, and intended to facilitate maintenance operations.
  • a first set of connectors 31/32 - male and female respectively, allows the module 100 to be connected to the power supply 90 for two conductors intended to allow the transmission of control signals for the gradation of the light intensity ("dimming" in Anglo-Saxon literature).
  • a second set of connectors 33/34 - respectively female and male - allows a connection of the module 100 to the power supply 90, in order to allow the module 100 to receive a DC supply voltage - for example 48 volts - intended for the power supply for the luminaire LEDs.
  • a third set of connectors 35/36 - male and female respectively - allows the module 100 to be connected to the power supply 90, in order to allow the power supply 90 to receive through these connectors the supply voltage 220 Volts (resp. Phase. , Neutral and Earth) under the control of the first module 100.
  • a link allows the coupling of a temperature sensor 190 which will be positioned on the generic power supply 90, as close as possible to the heat source, in order to allow the first module 100 to monitor its operating temperature. .
  • module 100 is able to manage all the variables and parameters of the operation of the generic power supply 90, which we will note that it is the cause of most of the failures putting the luminaire out of service.
  • module 100 measures and analyzes input voltage and current (connectors 35-36), output voltage and current (connectors 33-34), dimming parameters (connectors 31-32 ), as well as the operating temperature of this supply 90 (link 39).
  • the first module 100 includes a microprocessor 110 with its well-known associated components, such as memory components and input / output (I / O) units, not shown, and which are not required, for the sake of brevity. , to develop further.
  • the memory components are used for storing the firmware instructions intended for carrying out the processes which will be described below, but also for storing information and data relating to the operation of the various components of the system, and in particular of the power supply 90.
  • a dedicated, non-erasable memory will be used to store statistical data making it possible to trace incidents related to the operation of power supply 90 or any other component.
  • the microprocessor is powered by an AC / DC converter 140, protected by a lightning protection element 170 against overvoltages, and generally controls all the other components of the module 100, including a relay 120, a first block of measurement 130, an RS485 communication module 150, a second measurement block 160.
  • the protection element 170 is coupled, at the input, to the input interface 50 receiving the mains supply voltage (220V), comprising the conventional PHASE, NEUTRAL and EARTH circuits.
  • Output, element 170 is coupled to relay 120, to measuring block 130 and to AC / DC converter 140.
  • the relay 120 has an input coupled to the element 170 and an output comprising two conductors coupled to the connectors 35-36 of the interface 30 with the power supply 90.
  • the relay is an important element of the architecture because it is it. which allows, under the control of the microprocessor 110, the transmission of the supply voltage 220 volts (for example, or 110 volts) to the supply 90 in order to command and control the operation of the latter during the operation of the luminaire, but also during the test phases which will be described later.
  • the first measurement unit 130 comprises an input coupled to the protection element 170 and comprises circuits for analyzing and measuring the voltage / current pair, the results of which are transmitted by an appropriate circuit to the microprocessor 110.
  • the measuring unit may include an analog-to-digital converter allowing the conversion of the input voltage into a digital representation which may be processed by the microprocessor 110.
  • the converter 140 has a first input coupled to the protection element 170. It therefore receives the supply voltage / current and generates a DC supply intended for the supply of all the control modules of the present architecture, in particular the control modules. modules 100, 200 and 300. It should be noted, and this is an important element, that the AC / DC converter is not intended to generate the power supply for the LED lamps which, for its part, is generated by the power supply. 90 under supervision by the module 100. The AC / DC converter 140 therefore remains exclusively reserved for supplying the modules 100, 200 and 300, allowing the provision of the intelligence necessary for the implementation of the various functions described below. after.
  • the AC / DC converter 140 has two separate outputs, namely a first output intended for supplying the other components of the module 100 - for example 5 volts, including the microprocessor 110 shown in the figure, but also a second output which is coupled to two specific conductors of the interface 40 allowing the connection, along the mast, of the first module 100 to the second module 200 with the aim of providing the latter with a specific power supply, for example 12 volts.
  • the RS485 150 communication module has an input coupled to the microprocessor 110 and an output coupled to two other specific conductors of the cable 40 allowing the connection of the modules 100 and 200.
  • This RS485 150 communication module therefore enables bidirectional communication between the microprocessor. 110 of the module 100 and the microprocessor 210 of the module 200 located in the upper element 2 at the top of the mast of the luminaire.
  • a second measuring unit 160 comprises an input coupled to the connectors 33/34 connected to the power supply 90, and comprises circuits for analyzing and measuring the output voltage / current (48 volts for example) generated by the power supply 90 with a view to powering the LEDs, the results of which are transmitted by an appropriate circuit to the microprocessor 110.
  • the measuring unit may include an analog-to-digital converter allowing the conversion of the input voltage into a digital representation which can be processed by the microprocessor 110.
  • the first module 100 may include an additional interface allowing direct access to the microprocessor via an external console, in particular for updating the computer program stored in the module 100.
  • the second module 200 located at the top of the mast has a similar architecture.
  • a microprocessor 210 comprising all the accessory components well known to a person skilled in the art, but also an RS 485 communication module 220 allowing coupling to the two specific conductors of the cable 40 receiving the communication data exchanged with the microprocessor 110 of the module 100, through module 150.
  • the module 200 comprises a wireless communication module 230 according to the LoRa protocol (Long Range Radio Wide Area Network in English literature), connected to an antenna 900.
  • This module allows the exchange of information according to a wireless protocol with the fourth module 600 (ref 105G not shown) which serves as a gateway for the return of all management and statistics via a gateway 600 to a dedicated server 650 as illustrated in the figure 6 .
  • LoRa communication protocol is a well known protocol allowing the deployment of a wide area network at long range. There is no need to develop it further. The reader will refer to the many articles on the Internet, in particular: https://fr.wikipedia.org/wiki/LoRaWAN
  • the figure 4 illustrates the detail of the coupling of the second module 200 to the first module 100 (ref 105L) and to the third module 300 (ref 105S), respectively via interfaces 40 and 390, by means of suitable IP68 connectors.
  • the interface 40 with the first module 100 is made by means of a suitable cable connected via a six-conductor connector shown in the figure, while the interface 290 with the LED board uses a set of connectors 291/292 - male and female respectively - allowing the connection of two power supply conductors (+ 48 Volts for example) but also two additional conductors for the connection of a temperature sensor 280 located on the LED board.
  • the interface 390 allows the module 200 to be coupled to the module 300 (ref 105S) allowing the introduction of additional specific sensors.
  • the figure 5 illustrates in more detail the electronic diagram of the second module 200, and the essential components allowing the test functions which will be described below. It is observed that the module 200 comprises a DC-DC converter 240 having an input receiving a direct DC power supply extracted from two specific conductors of the interface 40, and generated by the AC / DC converter 140, and an output delivering a voltage adequate, independent of the length of the cable 40 located in the mast, for supplying the various components of the modules 200 and 300.
  • a DC-DC converter 240 having an input receiving a direct DC power supply extracted from two specific conductors of the interface 40, and generated by the AC / DC converter 140, and an output delivering a voltage adequate, independent of the length of the cable 40 located in the mast, for supplying the various components of the modules 200 and 300.
  • the module 200 comprises a measuring element 260, similar to the elements 130 and 160 of the module 100, allowing the measurement of the operating parameters U, I and P of the LED board 400.
  • the element 260 may include a analog / digital converter for transmitting a digital version of the analog measurements made to allow the processor 210 to perform the appropriate calculations.
  • the input of the measuring element 260 is configured to receive the direct + 48V voltage extracted from the interface 40, itself generated by the power supply 90, while the output of this same element is coupled to the interface. 290 for powering the LED board.
  • the other two conductors of the interface 290 being, as seen above, dedicated to the transmission of the signal generated by the temperature sensor 280.
  • the interface 390 with the third module 300 comprises two specific types of interface, respectively UART3 / I2C and GPIO, in order to allow the coupling of various sensors and detectors, both digital and analog.
  • the figure 6 illustrates the general architecture of the fleet of luminaires 610-1 to 610-n, communicating with a set of modules 600 (three modules being shown) which each serve as a "gateway" for an information transport via the Internet network 620 to a 650 dedicated management and maintenance server.
  • the figure 7 illustrates the different hardware components used in a preferred embodiment for module 100.
  • the figure 8 illustrates the different hardware components used in a preferred embodiment for module 200.
  • the figure 9 illustrates the different hardware components used in a preferred embodiment for the module 600.
  • the architecture which has been described allows the management of a park of luminaires of various types and various powers. It is particularly suitable for LED luminaires which are becoming widespread in street lighting.
  • the inventor has designed a very specific LED plate, particularly suitable for the 100-300 modules described above, but which could also be considered independently of the other modules described.
  • the figure 10 illustrates a first embodiment of such an LED plate designed by the inventor.
  • This board is based on a set of LEDs connected in a mesh, that is to say comprising a set of P branches 410, 420, 430, 440, etc., each comprising N LEDs.
  • Branch 410 thus comprises N LEDs referenced respectively 410-1, 410-2, ..., 410-n
  • branch 420 also comprises N LEDs referenced respectively 420-1, 420-2, 420-3, .. . 420-N etc ...
  • each individual LED of the first branch is connected in parallel. further in parallel to an LED of a corresponding row of the second branch.
  • each of the individual LEDs of the P th branch is connected in parallel with an LED of a corresponding rank of the P-1 th branch.
  • each of the LEDs of all the other branches are connected in parallel to two LEDs of identical rank, respectively coming from a previous branch and from a following branch.
  • This particularly original and novel configuration proves to be most advantageous. Indeed, it makes it possible to prevent the failure of a single LED causing the shutdown of an entire branch of LEDs.
  • the proposed configuration when an LED fails, it causes an open circuit, and the voltages and currents reorganize around the other neighboring LEDs which will continue to illuminate and contribute to the lighting of the luminaire. And the switching off of the LED can be finely detected by the measurement blocks of the module 200 to allow real-time monitoring and report the incident to the dedicated maintenance server.
  • the LED board is fitted with a temperature sensor 280.
  • the architecture which has just been exposed above allows the deployment of a fleet of luminaires, to be created or already existing and, as we will see now, which will each be the subject of careful monitoring in real time. in order to allow a detailed analysis of the operating conditions of the park, operating parameters of each luminaire and reported incidents, such as to allow the most advantageous predictability of failure.
  • the first module 100 (ref 105L) is positioned at the bottom of the mast next to the power supply for the luminaire.
  • This module provides the interface between the mains (220Vac), the power supply and the entire system, excluding the LEDs of the luminaire.
  • the connections between the module 100 (ref 105L), the module 200 (ref 105U) and the luminaire power supply 90 are provided by male / female connectors of the IP68 type, easy to handle for maintenance personnel.
  • the method starts with a step 1210.
  • the method performs, by means of the first measurement unit 130, a measurement of the input parameters, namely the voltage supplied at the level of the interface 50.
  • the method performs a test on the relay 120 to determine whether the latter is activated (ON) or deactivated (OFF).
  • step 1230 If the test of step 1230 reveals that the relay 120 is deactivated (OFF), then the process returns to step 1220.
  • step 1230 if the test of step 1230 reveals that the relay 120 is activated (ON), then the method goes to a step 1240 which consists of an additional test carried out by the first measurement block 130 to determine whether the voltage of input available at interface 50 is within a first predefined voltage range, for example 115V - 260Volts, in which case the method returns to step 1220.
  • a first predefined voltage range for example 115V - 260Volts
  • step 1240 the input voltage at the level of the interface 50 is not included in the predefined value range (for example 115-260 Volts), then the method continues with a step 1250 which is the start of a timer T.
  • the predefined value range for example 115-260 Volts
  • step 1260 consisting of a new test, identical to that of step 1240, consisting in determining whether the input voltage is within the predefined value range, for example 115-260 Volts, in which case the method returns to step 1220.
  • step 1260 the test of step 1260 reveals that the voltage V is still outside the range of predefined values 115-260 Volts, then the method continues with a step 1270 during which the processor 110 generates undervoltage or overvoltage incident information, as the case may be, and stores this information in a statistical data memory.
  • the processor 110 reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • step 1290 the processor 110 generates an alarm reporting the incident and transmits it via the RS485 module 150 to the other modules 200-600, including the gateway 600 so that it sends it to the management server and maintenance via the Internet.
  • This alarm like all the alarms which will be described below with the figures 13-19 , are considered to be “predictive” insofar as they make it possible to anticipate a short-term malfunction of an important component such as the power supply 90 or the LED board 400.
  • the figure 13 illustrates more specifically the monitoring and analysis of the consumption of the power supply module 90, and specifically the intensity delivered by the latter.
  • the method starts with a step 1310.
  • the method performs a measurement of the operating parameters of the power supply 90, and this by means of the measurement unit 130 receiving, as input, the voltage and the supply current A / C and the unit 160 generated by power supply 90.
  • step 1330 which consists in determining whether the intensity I and the power P are in a second and a third range of predefined values, in which case the method returns to step 1320.
  • step 1330 If, in step 1330, it is determined that the values I and P are not included in the predefined ranges, the method continues with a step 1340 during which the processor 110 generates incident information and stores this information in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • a step 1360 the method performs a test on the frequency of incidents already reported and determines whether the frequency exceeds a predetermined threshold.
  • step 1360 If the test of step 1360 shows that the frequency of incidents reported on I or P remains below the predetermined threshold, then the method continues with a step 1370 during which the relay 120 is deactivated.
  • step 1380 the relay 120 is reactivated so as to restart the power supply 90, and the method then returns to step 1320.
  • step 1360 In the case where step 1360 has revealed a frequency of incidents already reported greater than the predetermined threshold, then the method continues going directly to step 1390 during which the processor 110 generates a predictive fault alarm transmitted to the modules 200- 600, so that this alarm can be forwarded over the Internet to the management server.
  • the management and maintenance server is notified in real time of the conditions of use of the generic power supply 90, even when the latter does not include, in manufacturing, means of remote transmission. Thanks to the cooperation of the different 100-200-600 modules, the management and maintenance server can then automatically schedule an on-site intervention in the days (weeks or months) to come to replace the power supply 90, which is expected to be likely to break down. It should also be noted that, thanks to the general architecture of the luminaire, the replacement of the power supply 90 - located in the lower position in the mast of the luminaire in question - can be carried out very simply by non-specialized personnel without having to resort to a bucket truck.
  • the figure 14 illustrates a method for measuring and analyzing the power factor performed by the module 100.
  • the method starts with a step 1410.
  • the method performs a measurement of the power factor of the power supply 90 by means of the measurement information collected by the first measurement block 130 and the second measurement block 160.
  • the efficiency of the power supply 90 is calculated by calculating a ratio between the input and output parameters of the power supply. Such a calculation is well known to a person skilled in the art and does not require additional development.
  • the method performs a test during a step 1430 of determining whether the power factor is greater than a predetermined threshold, in which case the method returns to step 1420.
  • step 1430 If the test of step 1430 reveals a power factor less than the predetermined threshold, the method continues with a step 1440 in which a further test is performed to determine if the power supply 90 is operating in "dimming" mode. ("Dimming").
  • the processor 110 controls the activation of the "dimming" mode in a step 1450, by means of suitable control signals transmitted via the connectors 31-32, then the method returns to the 'step 1420.
  • step 1440 If the power supply 90 is already operating in "dimming" mode in the test of step 1440, then the method continues with a step 1460 during which the processor 110 reads the data stored in the incident memory to determine if the power supply 90 has already been restarted several times during a predetermined interval, in a step 1461.
  • a step 1462 the method performs a test on the frequency of the incidents already reported and determines whether the frequency exceeds a predetermined threshold.
  • step 1460 If the test of step 1460 reveals that the power supply has been the subject of several restarts following incidents identified on the power factor, then the processor 110 generates a predictive alarm in step 1490 which is stored in the database. statistical data and is also transmitted to blocks 200-600 as well as to the management and maintenance server to schedule a power supply replacement operation 90.
  • the method continues with a step 1470 during which the supply 90 is stopped.
  • step 1471 for example 10 seconds, restarted in step 1472 and then returns to step 1420.
  • the processor 110 when a measurement of the power factor appears below a predetermined threshold, the processor 110 operates a sequence of increasing variations on the power supply 90 in order to determine, where appropriate, an impact of this variation on the power supply 90. the power factor. The results of these successive measurements can then be used to order either the return to step 1420 (normal situation) or the generation of the alert in step 1490.
  • this processor detects a bad factor power supply while the power supply does not operate any gradation, this processor performs a sequence of successive measurements with different gradation levels (10%, 20% etc ...) to analyze the impact of the gradation on the value of the factor measured power. If, after a certain level of dimming, the power factor recovers, the processor will be able to distinguish this situation from an impending failure situation in which the power factor remains bad for any dimming value.
  • the processor 110 uses a look-up table comprising two inputs, namely the gradation rate and the temperature, and making it possible to give a power factor threshold to be used for the. test step 1430.
  • the method begins with a step 1510.
  • the method performs a measurement of the operating temperature of the supply 90, by means of the temperature sensor 190 positioned on the latter.
  • step 1530 which consists in determining whether the measured temperature is included in a fourth range of predefined values, in which case the method continues with step 1520.
  • step 1530 If, in step 1530, it is determined that the measured temperature is not included in the authorized value range, the method continues with a step 1531 during which the processor 110 generates incident information and stores this information in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • a step 1540 the method performs a test on the frequency of incidents already reported and determines whether the frequency remains below a predetermined threshold.
  • step 1540 If the test of step 1540 shows that the frequency of incidents reported on the temperature measurement is less than a predetermined threshold, then the method continues with a step 1541 during which the degree of dimming is reduced by 10%.
  • step 1542 the method continues with a step 1542 during which, at the expiration of a predetermined time delay - for example 2 minutes - the method then returns to step 1520.
  • step 1540 has revealed a frequency of temperature measurement incidents already reported greater than the predetermined threshold, then the method continues going directly to step 1550 to test the state of relay 120.
  • step 1560 the method continues with a step 1560 during which the relay 120 is then deactivated. Then the method continues with a timing step 1570 and then a step 1380 for restarting the relay 120 before returning to step 1520.
  • step 1550 results in the observation of a deactivated relay, the method then continues with a step 1590 during which the processor 110 generates a predictive fault alarm transmitted to the modules 200-600, so that this alarm can be forwarded. via the Internet network to the management server.
  • the figure 16 illustrates another more synthetic embodiment of a method for analyzing the operating conditions of the LED board 400 and in particular the monitoring of all its electrical operating parameters U, I and P.
  • the method begins with a step 1610
  • the method performs a measurement of the operating parameters of the board of LEDs and in particular the measurement of the voltage V, of the intensity I and of the power P consumed, and measured by the measuring element 260 located in module 200.
  • step 1630 which consists in determining whether these parameters U, I and P are included in a fifth range of predefined values, in which case the method continues with a step 1640 which consists in testing the state of the relay 120.
  • step 1640 the relay is detected as being activated, then the method returns to step 1620. Otherwise, the method activates the relay 120 in a step 1641, then returns to step 1620.
  • step 1630 If, in step 1630, it is determined that the operating parameters V, I, and P are not within the fifth allowable value range, then the method continues with step 1650 in which a test is performed to determine whether the triplet (V, I, P) is equal to (48,0,0) - representative of a complete malfunction of the LED board 400, in which case an alarm is immediately generated and transmitted to the maintenance server during a step 1690 for cause an immediate maintenance operation to replace the LED 400 board.
  • step 1650 If the test of step 1650 is negative, then the method continues with a step 1651 during which the processor 110 generates incident information and stores this information in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • a step 1660 the method performs a test on the frequency of incidents already reported and determines whether the frequency exceeds a predetermined threshold.
  • step 1660 If the test of step 1660 shows that the frequency of reported incidents is lower than the predetermined threshold, then the method continues with a step 1661 at during which the degree of dimming is decreased by a predetermined amount, for example 10%.
  • step 1662 the method continues with a step 1662 during which, at the expiration of a predetermined time delay - for example 2 minutes - the method then returns to step 1620.
  • step 1660 has revealed a frequency of incidents of measurement of operating conditions of the LEDs already reported greater than the predetermined threshold, then the method continues goes directly to step 1670 to test the state of relay 120.
  • step 1671 during which the relay 120 is then deactivated
  • step 1672 during which, at the expiration of a predetermined time delay - by example 2 minutes - the process then returns to step 1620.
  • step 1670 results in the observation of a deactivated relay
  • the processor 110 If the test of step 1670 results in the observation of a deactivated relay, the processor 110 generates a control signal for activating the relay 120 in a step 1680, then the method continues with a step 1690 during which a fault alarm predictive is transmitted to the 200-600 modules, so that this alarm can be forwarded via the Internet network to the management server.
  • the method begins with a step 1710.
  • the method performs a measurement of the operating temperature of the LED plate, by means of the temperature sensor 290 positioned on the latter.
  • step 1730 which consists in determining whether the measured temperature is included in a sixth range of predefined values, in which case the method continues with a step 1740 which consists in testing the state of the relay 120.
  • step 1740 the relay is detected as being activated, then the method returns to step 1720. Otherwise, the method activates the relay 120 in a step 1741, then returns to step 1620.
  • step 1730 If, in step 1730, it is determined that the measured temperature is not within the authorized value range, the method continues with a step 1731 during which the processor 110 generates incident information and stores this information. in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • a step 1750 the method performs a test on the frequency of incidents already reported and determines whether the frequency exceeds a predetermined threshold.
  • step 1750 If the test of step 1750 shows that the frequency of incidents reported on the temperature measurement is less than the predetermined threshold, then the method continues with a step 1751 during which the degree of dimming is reduced by 10%.
  • step 1752 the method continues with a step 1752 during which, at the expiration of a predetermined time delay - for example 2 minutes - the method then returns to step 1720.
  • step 1750 has revealed a frequency of temperature measurement incidents already reported greater than the predetermined threshold, then the method continues going directly to step 1760 to test the state of relay 120.
  • step 1761 during which the relay 120 is then deactivated. Then the method continues with a timing step 1762 before returning to step 1720.
  • step 1760 If the test of step 1760 results in the observation of a deactivated relay, the method then continues with a step 1790 during which the processor 110 generates a predictive fault alarm which can then be transmitted to the modules 200-600, so that this alarm can be forwarded via the Internet to the management server.
  • the figure 18 illustrates a method of generalized monitoring of the communication between the module 100 and 200.
  • the process starts with a step 1810.
  • the method detects the communication between the RS485 module 150 located in the module 100 and the RS485 module 220 located in the module 200.
  • a step 1830 the method performs a test to verify the reception of the information.
  • step 1840 If the data appear correct, the method continues with step 1840 and after a 10 second timeout continues with step 1820 which restarts the operation
  • the method then continues with a step 1850.
  • step 1850 If the test from step 1850 is positive, then the process continues with step 1840.
  • step 1850 If the test of step 1850 is negative, then the method continues with a step 1860 during which the processor 110 generates incident information and stores this information in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency, during which the processor 110 generates a predictive failure alarm which can then be transmitted to the 200-600 modules, so that this alarm can be forwarded via the Internet network to the management server.
  • the figure 19 illustrates a method for testing the sensors installed in the third module 300.
  • the process starts with a step 1910.
  • the method detects the sensors housed in the module 300, by means of an appropriate request transmitted via the appropriate analog UART3 / I2C or digital GPIO interface.
  • the method performs a test to verify the reception of a reception of a response from the sensor.
  • the method then goes to a step 1960 to test the validity of the information collected relating to the sensor.
  • step 1920 If the data appears to be correct, the method continues with step 1920.
  • the process then continues with a step 1970 during which the processor 110 generates a predictive failure alarm which can then be transmitted to the 200-600 modules, so that this alarm can be forwarded via the Internet network. to the management server.
  • step 1940 the processor 110 generates incident information and stores this information in the statistical data memory.
  • the method reads the statistical data memory and performs an analysis of this data to determine the number of incidents already reported and stored, as well as their frequency.
  • the method then continues with a step 1970 during which the processor 110 generates a predictive failure alarm which can then be transmitted to the modules 200-600, so that this alarm can be forwarded via the Internet network to the management server.
  • the invention allows the monitoring and remote transmission of incidents detected on a park of street lights, so as to directly manage the lighting from the remote server 650, via software configured for this purpose which is installed on a secure server and which is accessible from a computer, tablet or mobile phone.
  • the software automatically analyzes all the information.
  • the operating parameters are defined at installation.
  • the present invention allows the deployment of a fleet of geolocated luminaires, which send the information of their states in real time to supervision.
  • the power supply being deported to the lower part of the mast, in the event of a breakdown (90% of cases) the intervention is carried out by a single person and without having to resort to specialized and expensive equipment, such as a bucket truck .
  • the luminaires being supplied with 48V direct current, the personnel are not required to have a specific certification, further reducing maintenance costs.
  • the present invention also makes it possible to reduce the stock of spare parts since, thanks to the remote control electronics in the modules 100 of the park, and coming to centralize all the information in the same server, it becomes possible to control different types of luminaires. , in particular luminaires from 30W to 150W, or from 90W to 300W (for luminaire ref 888D)
  • the present invention also makes it possible, thanks to the supervision and the feedback of all the measurements of the various parameters of the luminaires of the park, to analyze in a predictive manner, with precision, the appearance of a weakness in a luminaire.
  • the specific wiring of the LEDs within the LED board prevents the loss of a single LED leading to a total loss of lighting. Thanks to the supervision of the operating parameters of the lighting board, the modules 100 and 200 make it possible to detect the HS setting of a single LED, then of a second and to transmit the corresponding information to the dedicated server via the gateway 600 , so that it becomes possible to provide for the replacement of an LED board identified as being close to failure.
  • An additional advantage of the proposed invention lies in the fact that the module 600 (controller ref 105G) is geolocated, and can switch on and off the lights at specific times, depending on the sunset corresponding to the geolocation. . This avoids sudden inrushes of current associated with the simultaneous switching on of hundreds of luminaires.
  • the electric current being present continuously on the network due to the fact that the lighting of the luminaire is managed by the module 600 (ref 105G), in the event of theft of the electric cables, the information is given instantaneously and geolocated.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP20185386.8A 2019-07-11 2020-07-11 Strassenbeleuchtung für eine zentralisierte steuerung, und entsprechendes steuerungsverfahren Withdrawn EP3764751A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1907832A FR3098679A1 (fr) 2019-07-11 2019-07-11 Luminaire de rue pour une gestion centralisée et procédé de gestion associée

Publications (2)

Publication Number Publication Date
EP3764751A2 true EP3764751A2 (de) 2021-01-13
EP3764751A3 EP3764751A3 (de) 2021-03-03

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EP20185386.8A Withdrawn EP3764751A3 (de) 2019-07-11 2020-07-11 Strassenbeleuchtung für eine zentralisierte steuerung, und entsprechendes steuerungsverfahren

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EP (1) EP3764751A3 (de)
FR (1) FR3098679A1 (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014109891A2 (en) * 2013-01-09 2014-07-17 Lsi Industries, Inc. Lighting and integrated fixture control

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FR3098679A1 (fr) 2021-01-15
EP3764751A3 (de) 2021-03-03

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