EP3993566A1 - Beleuchtungs- und sensorsystem - Google Patents

Beleuchtungs- und sensorsystem Download PDF

Info

Publication number
EP3993566A1
EP3993566A1 EP21205249.2A EP21205249A EP3993566A1 EP 3993566 A1 EP3993566 A1 EP 3993566A1 EP 21205249 A EP21205249 A EP 21205249A EP 3993566 A1 EP3993566 A1 EP 3993566A1
Authority
EP
European Patent Office
Prior art keywords
lighting
coupler
sensor
frequency
sensor system
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
EP21205249.2A
Other languages
English (en)
French (fr)
Other versions
EP3993566B1 (de
Inventor
René GRABHER
Guido Piai
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.)
Gifas Electric GmbH
Original Assignee
Gifas Electric GmbH
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 Gifas Electric GmbH filed Critical Gifas Electric GmbH
Publication of EP3993566A1 publication Critical patent/EP3993566A1/de
Application granted granted Critical
Publication of EP3993566B1 publication Critical patent/EP3993566B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • H05B47/18—Controlling the light source by remote control via data-bus transmission
    • 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
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • 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
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • H05B47/195—Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light

Definitions

  • the present invention relates to a lighting and sensor system, in particular but not only for marking carriageways and/or tunnel walls and to obtain sensor information from there, comprising
  • WO 96/02970 discloses an inductively powered lighting which receives power from adjacent concealed cables. Such lighting is especially useful for emergency lights, indicating lights and roadway signal lighting. Such lighting can be used for swimming pools, where the light is in the water, where sparks may cause explosion as in mines and stockage sites of flammable powders and where a surface on which lights are laid is prone to be replaced such as on a roadway with a tar sealed surface.
  • WO 96/02970 discloses a low-profile LED lamp. The lamp is inductively connected with a pair of closely spaced conductors, which are spread apart at each site where a lamp unit is to be placed.
  • the light radiated from the lamp can be changed through modulation of the current in the spaced conductors, especially as information carried within a carrier frequency different from the frequency of the power for inductive transfer. Different lamps can be addressed with different resonant frequencies.
  • the power frequency is between 200 Hz to 2 MHz.
  • US 2014/008991 discloses an intelligent node for an inductive power transfer system which allows communication between a system power supply and a lamp unit and facilitates authentication of system components.
  • the node can also control operation of the lamp unit.
  • WO 2011/116 404 A1 discloses a lighting device for a lighting installation for contactless transmission of energy to the lighting device, with a light source, in particular with at least one light-emitting diode, wherein the lighting device has a control unit, with which the light source can be controlled depending on control signals which can be transmitted by a control device to the lighting device, wherein the local coupler has a transmission inductance, an input for connecting an electrical feed line and a device for generating a radiofrequency voltage, which is supplied to the transmission inductance during operation of the coupler, wherein the lighting device has a transmission unit for transmitting information to the control device.
  • WO 2010/093997 A1 discloses configurations for a wireless power transfer for electronic devices that include at least one source magnetic resonator including a capacitively-loaded conducting loop coupled to a power source and configured to generate an oscillating magnetic field and at least one device magnetic resonator, distal from said source resonators, comprising a capacitively-loaded conducting loop configured to convert said oscillating magnetic fields into electrical energy, wherein at least one said resonator has a keep-out zone around the resonator that surrounds the resonator with a layer of non-lossy material.
  • WO 2010/093997 optimizes the energy transfer for one induction coil with respect to wave phenomena occurring on the line as mentioned e.g. in [0447]. This transfer is inter alia shown in Fig. 44 between a source and one single device.
  • US 5,559,377 A1 discloses an apparatus for electrical line communication that includes a coupler at each of two or more locations along a pair of lines, the coupler having capacitive circuits serially connected with an air-core transformer.
  • the capacitive circuit is designed to resonate with the air-core transformer at a preselected frequency.
  • a transmitter, receiver and modem may also be provided at each location.
  • the apparatus incorporates a phase linear coupler which eliminates noise and is matched resistively to the characteristic impedance of the line at a preselected frequency. This apparatus therefore linearizes communication on the line and allows high speed data and voice communication over long distances.
  • the known lighting installations have a number of shortcomings.
  • the length of the installation, e.g. in tunnels is usually quite limited, since mostly ignored wave phenomena appear which do not allow for the light sources to have a steady luminosity.
  • the number of light sources, e.g. positioned every 25 or 50 meter is so limited that a tunnel of 2 kilometer length cannot be equipped with one single system. Damaged inductive lighting devices cannot be easily replaced.
  • the coupler is stationary with the electrical feeder.
  • WO 2010/093997 optimizes the energy transfer between one single source and one single device.
  • DC systems have sealing problems, because galvanic contact and therefore piercing of the powering cable is required.
  • Conventional AC systems have also sealing problems, because they use series capacitors to compensate cable inductance and therefore need a cable cut.
  • the electrical feeder comprises an AC power source at a first frequency
  • the control unit is connected to a modem modulating and de-modulating said control signals at a second frequency different to (e.g. higher than) the first frequency
  • a matching network and a termination network are provided at the beginning and at the end of the electrical feeder line with a predetermined frequency dependent impedance
  • each inductive lighting/sensor device comprises a variable AC resonant circuit adjusting AC line currents of varying levels to a continuous level.
  • variable AC resonant circuit is connected via a rectifier to a variable voltage limitation circuit to reduce the load voltage in order to lower the power to the desired level.
  • a variable voltage limitation circuit can be realized with a variable constant current source or a variable load which both leads to the same goal. It can be a variable Zener diode.
  • variable AC resonant circuit can comprise a tuning capacitor coupled to a main resonance capacitor and then the tuning capacitor is controlled by the microprocessor to influence the operating point in order to improve the resulting DC current supply.
  • the local coupler can comprise an information transmission coupler for the second, (e.g. higher) frequency and a power transmission coupler for the first (e.g. lower) frequency.
  • the information transmission coupler usually comprises a ferromagnetic core.
  • One or more lighting/sensor devices can comprise a communication interface for a direct signal exchange between the lighting/sensor devices and a handheld control device of a user who is checking or programming the different devices.
  • a communication interface can be chosen especially from the group encompassing infrared communication (IR), visible light communication (VLC), near field communication (NFC) or similar interfaces.
  • the lighting and sensor system is called as such, since it uses a plurality of light source and sensor devices.
  • Such single light source and sensor device can comprise a light source and a sensor, or only one of these two components.
  • the lighting and sensor system uses a plurality of lighting and sensor device having a local coupler, a transceiver and a light source, wherein the local coupler is configured to receive and transmit control signals when connected to an electrical feeder at a second carrier frequency being different to, e,g, higher or lower than) a first AC power transmission frequency, wherein it comprises a variable AC resonant circuit adjusting AC line currents of varying levels to a continuous level.
  • a plurality of such lighting and sensor devices are used in a system according to the invention but can be replaced on a one by one basis. This is especially useful when the lighting and sensor devices are configured to be attached to a substrate, e.g. a road.
  • a lighting and sensor device system for under water pond or swimming pool lighting and sensors can be used in such cases to monitor the temperature or other water parameters. Beside road lighting, especially in tunnels, such a lighting and sensor device system can be used for runway or taxiway lighting.
  • the advantage of the system is the versality of use of lamp and/or sensors.
  • sensors can be provided at virtually any place along the line with just the kind of sensor adapted for the task which can be a temperature sensor, an humidity sensor, a brightness sensor, a specific gases detecting sensor, a car counting sensor, self-test or reliability sensors, etc..
  • the system comprises a termination with appropriate load to prevent wave phenomena. It is further possible to tune the resonant circuit for power adjustment of the individual nodes, especially if the current at resonance is too high. Bidirectional communication is possible with various ways of interfaces.
  • the variable capacitor can comprise a tuning capacitor in parallel to the main resonance capacitor, but in other embodiments, variable capacitor alternatives can be chosen as tuning by changing the distance between the capacitor's plates or an electronic version is chosen.
  • Fig. 1 shows a schematic diagram of a lighting and sensor system 10 according to an embodiment of the invention.
  • a lighting and sensor system can in particular be used for marking carriageways and/or tunnel walls and to retrieve and transmit back sensor information relating to conditions at such a place.
  • an electrical feeder 20 is embedded in a road as substrate.
  • the electrical feeder 20 comprises two wires 21 and 22 provided in parallel in the road.
  • the wires 21 and 22 are accessible from above the road surface, e.g. in a hollow cylinder where the cables just pass. The cables are isolated at the passage of the specific illumination and/or points 11.
  • the wires 21 and 22 are replaced by two groups of two wires, wherein one group of wires will be connected via a first coupler 111 only and the second group will be connected via a second coupler 112 only, or in other words, the two group of wires are positioned in parallel and each will be connected via one dedicated coupler 111 or 112.
  • Reference numeral 100 indicates one lighting and sensor device which is shown as a single device from the plurality of inductive lighting and sensor devices 100 provided at different specific illumination and/or points 11. Within an application of the invention, there can be hundreds of these inductive lighting and sensor devices 100 being positioned at the predetermined places.
  • the lighting and sensor devices 100 can comprise a light source and a sensor, or only one of these two components.
  • Each lighting device 100 has a local coupler with two elements 111 and 112 adapted to be coupled to the electrical feeder 20.
  • the information transmission coupler 111 as well as the power transmission coupler 112 are preferably so-called E-cores which are symmetric solutions to form a closed or almost closed magnetic system.
  • the electric circuit is mostly wound around the center leg 113, whose section area is twice that of each individual outer leg 114.
  • the legs 113, 114 are configured to allow for the two cables 21 and 22 to pass between the central leg 113 and one of the outer legs 114, respectively.
  • the E-cores can be open ferrite cores. It is also possible to use cores which can be closed or other types of closed and open cores. Fig.
  • FIG. 7 shows a coupler configuration as a partial portion of the schematic diagram of Fig. 1 where the coil 117 of the bidirectional data connection 115 is coupled via the coupling capacitor 117' to a first microprocessor as explained below.
  • Coil 118 of the AC power connection is coupled via the main resonance capacitor 132 and the tuning capacitor 131 with the rectifier as explained below.
  • the E-cores 111 and 112 act as information transmission coupler (in case of core 111) as well as the power transmission coupler (in case of core 112).
  • the electrical feeder 20 which can have a length of e.g. up to 2 kilometers or beyond, is connected to an AC power source 30 providing within the embodiment shown here a sinus-shaped 40 kHz AC-voltage. In other embodiments the frequency can be chosen approximately between 10 and 100 kHz. Since standing waves occur at such line lengths of 2 km and an AC frequency of 40 kHz, the current distribution along the line would not be constant.
  • the electrical feeder 20 is therefore terminated with a termination network 40 and is to be dimensioned to match the length and number of lighting devices 100. The necessary effective losses of the termination network as well as the local shift of the remaining current maximum are design parameters.
  • the AC voltage source 30 is connected to the two-wire electrical feeder 20 via a likewise specific coupling network 50.
  • Fig. 6 shows the termination network 40 as a partial portion of the schematic diagram of Fig. 1 .
  • the termination network 40 comprises an AC matching termination LCR member 41 as well as a HF matching termination LCR member 42 both connected to the two wires of cable 21, 22.
  • This termination network 40 is configured to match the impedance for the AC power connection 116 as well as for the HF part of the communication, being the bidirectional data connection 115, in place of a short circuit connection as in the prior art.
  • the lighting devices 100 are configured to receive control signals from a control unit 60 and to transmit information as e.g. sensor signals to the control unit. These data are modulated on a carrier at about 130kHz (HF). In other embodiments the frequency can be chosen between approximately 100 and 500 kHz. Therefore, the control unit 60 is connected via signal cables 61 with a modem 65 which modulates the information on the cables 21 and 22.
  • the modulation can be performed in various ways known to the person skilled in the art, especially ASK, PSK or FSK to name a few.
  • the terminating network 40 must assume a second function.
  • the termination should correspond as exactly as possible to the line impedance of 120 Ohm, which is the line impedance of the feeder 20, so that the wave phenomenon disappears completely.
  • Realistic values for the termination network are for AC: 50 ohms / 25 nF at 40 kHz and for HF: 120 ohms at 130 kHz. Since the HF signal is a weak signal, the losses are not important and it can therefore be terminated directly with the line impedance. For AC supply, the line currents must be in the range of 1.5 to 4.5 Amperes. In this case a smaller real resistance has to be selected due to the power loss in the termination network 40.
  • the tuning can be restricted to the AC part or the HF part or can be applied in both parts.
  • the design using separate E-cores 111 and 112 has the advantage that the levels of the other resonance frequency are significantly lower and the filters can therefore be designed more simply. In principle, a version with one core is possible; the only one coupler 110 is used and the following bidirectional data connection 115 and AC-power connection 116 only split in the lighting device 100 itself.
  • the lighting and sensor device 100 comprise a microprocessor 120 providing the control function for the lighting and sensor device 100 as follows.
  • the lighting device 100 Due to the residual standing wave phenomenon, the lighting device 100 has to be able to handle AC line currents (primary currents) of varying levels. If the line current is low, the system requires a high quality of the AC resonant circuit, a resonant frequency that is tuned as precisely as possible and a high load voltage at the operating point so that the desired active power can be drawn from the lighting device 100. If, on the other hand, the line current is high, it makes more sense to operate slightly outside the perfect resonance and with lower load voltages, so that unfavorably high reactive currents and thus losses in the resonant circuit are prevented. This issue is solved by a variable AC resonant circuit.
  • the microcontroller 120 connects a tuning capacitor (TCAP 131) in parallel to the main resonance capacitor (AC CAP 132). This detunes the resonant frequency and converts less energy.
  • TCAP 131 tuning capacitor
  • AC CAP 132 main resonance capacitor
  • This tuned AC level provided by the tuning capacitor 131 and the main resonance capacitor 132 is then rectified in rectifier 135 and could be delivered on one side as power to the microprocessor 120 via power line 136 and to the LED's / sensors 140 via power line 137.
  • Fig. 7 shows a coupler configuration as a partial portion of the schematic diagram of Fig. 1 with the above mentioned reference numerals.
  • the bidirectional data connection 115 comprises the coil 117 connected with the coupling capacitator 117' as a LC link to the first microprocessor 120.
  • the AC power connection 116 is the connection between the coil 118 of the AC power connection together with the two capacitors 132 as main resonance capacitor together with the tuning capacitor 131.
  • variable Zener diode circuit 150 controlled via control lines 151 by the microprocessor 120 of the lighting device 100.
  • Such a variable Zener diode circuit 150 can additionally reduce the load voltage to lower the power to the desired level.
  • This Zener diode circuit 150 is also controlled by the microcontroller according to the operating point.
  • the variable Zener diode circuit is mentioned as one example for a variable voltage limitation circuit which can also be realized with a variable constant current source or a variable load.
  • the LEDs 140 are dimmed by the microcontroller 120 via switching regulators and can be operated with flashing sequences via the control line 152. In case of a sensor device 100, the LED would be replaced by the sensor in question.
  • a sensor can be a temperature sensor, humidity sensor or gas sensing sensor to name a few applications. It is also possible to have a LED 140 as well as in parallel such a sensor connected via the lines 137 and 152 in the same way as the LED 140.
  • An optical IR interface 160 allows easy programming of IDs and various parameters directly on the specific lighting source, e.g. when it is built in a road 200. Instead of an IR interface such a communication interface can be chosen especially also from the group encompassing VLC, NFC or similar interfaces.
  • the lighting device 100 and its electronic components mentioned above basically works in the presented embodiment with three DC voltages approx. 25V, 9.3 V and 3.3 V provided by the rectifier 135. These are also operated with switching regulators. For the switching regulators it is necessary that the load voltage is always within its valid operating range.
  • the variable Zener diode circuit 150 is also responsible for this adjustment.
  • the lighting source therefore comprises a transceiver which is provided by the microprocessor 120 and a light source which is provided by LED(s) 140.
  • the control unit 60 is connected to the electrical feeder 20 and is configured to transmit control signals via the electrical feeder 20 to the transceiver 120 of each inductive lighting device 100 via the local coupler 110 or 111/112 of the respective inductive lighting device 100.
  • the transceiver 120 is configured to be able to transmit control signals, e.g. sensor signals, to the control unit 60.
  • each of the lighting and sensor devices 100 via the Zener diode circuit 150 is the primary current-independent load on the line by the lighting device 100. Due to the adjustable load voltage, each single lighting and sensor device 100 can determine the power consumption independently of the LED 140 operating state and other internal loads. This means a constant standing wave phenomenon. Induced oscillation behavior via the primary current due to changing operating states of the different lighting and sensor device 100 can thus be prevented.
  • the dimensioning of the coupling 50 and termination 40 networks can therefore be chosen independent of the operating state and is fixed in advance.
  • Fig. 2 shows a perspective view from below of a lighting device 100 attached on the cable 20 of an electrical feeder 20 of the lighting system 10 and Fig. 3 shows a schematical cross-section view of the lighting device 100 of Fig. 2 embedded in a road 200.
  • the lighting and sensor device 100 can have a cylindrical housing 170 to be positioned in a hole in a road 200 with side openings to allow the cable 20 to pass.
  • the cable 20 can be separated from the beginning in the two wires 21 and 22 or can be separated at the installation point 11.
  • the housing 170 comprises elements to maintain the wires 21 and 22 just on the underside of the E-core coupler 110 (or couplers 111, 112).
  • the core 175 of the lighting device 100 is then positioned in the housing 170 so that the flange 171 is flush on the road 200 surface.
  • the upper and/or side surfaces 172 of the flange are preferably translucent in order to allow the light of the LEDs 140 to pass.
  • Fig. 4 shows a schematic diagram of a lighting and sensor system 12 according to a further embodiment of the invention. All identical or similar features of the embodiment of Fig. 1 have the identical reference numerals; therefore, the description of these features is not repeated here.
  • the main difference between the embodiment of Fig. 1 and Fig. 4 is related to the fact that the lighting and/or sensor device is divided into an underground part of the lighting/sensor device 100A and an above ground part of the lighting/sensor device 100B.
  • the underground part of the lighting/sensor device 100A is applied on the electrical feeder cable 20 with the first and the second wires 21 and 22, as the device of Fig. 1 .
  • a combined coupler 110 instead of the separation of the power and information transfer.
  • Fig. 4 is also shown in Fig. 5 being a partial view of the schematic diagram of Fig. 4 relating to the bidirectional and power connection for a two-part light and sensor device used in connection with the lighting and sensor system of Fig. 4 .
  • one second coupler pair 210A and 210B is provided with an underground coupler part or coil 210A and an above ground coupler part or coil 210B positioned one facing the other.
  • the underground coupler part or coil 210A is preferredly encapsulated with the underground part of the lighting and/or sensor device 100A and has attachment elements working together with complementary attachment elements provided at the above ground part of the lighting and/or sensor device 100B, as e.g. a bayonet, magnetic or bonded connection (to name a few) for a removable attachment of the above ground part of the lighting and/or sensor device 100B at the underground part 100A.
  • the road separation coupler 210 is responsible for data and energy transmission.
  • the bidirectional data connection is connected to a (here) FSK and PSK modulation / demodulation unit for transmitting and receiving data from the above ground part of the lighting/sensor device 100B via the road separation coupler 210.
  • the AC power connection and driver 116' is connected to a resonance capacitor and adjustment network 216.
  • This second AC source 116' which is transmitting power between the underground microprocessor 120 to ⁇ inter alia - the above ground microprocessor 120' has preferably a frequency which is 50 to 20 times higher than the AC frequency of the AC source 30.
  • the AC frequency of the second AC source 116' can be 600 kHz.
  • the resonance capacitor and adjustment network 216 and the load capacitor or resistor 121' as well as the PSK and FSK demodulation 215 and 133 provide the simultaneous transmission of power and (bi)directional communication to the above ground part of the lighting and/or sensor device 100B.
  • a further main resonance capacitor is responsible to provide power to the rectifier 135' to provide power to the lighting and/or sensors 140' which would then also connected to the second microprocessor 120' which forwards the sensor data received from any sensor 140' and/or programming information from the e.g. IR sensor 160 via the load capacitor or resistor 121' towards the above ground coil 210B to be transmitted to the underground microprocessor 120.
  • the FSK modulation is controlled by the underground microprocessor 120.
  • the frequency is usually a different one than the frequency of the ac voltage source 30.
  • the FSK modulation is used for uploading data from underground part of lighting and/or sensor device 100A to the above ground part of lighting and/or sensor device 100B.
  • PSK load modulation is used for downloading data from the above ground part of lighting and/or sensor device 100B to the underground part of lighting and/or sensor device 100A.
  • PSK load modulation is one example for downloading the data, also a ASK load modulation (Amplitude shift keying or similar) is possible.
  • the road separation coupler 210 with its parts 210A and 210B comprises two preferably planar ferrite cores 211 and 211' with corresponding coils 212 and 212', respectively.
  • the PSK demodulator 215 and the resonance capacitor and resonance network 216 are connected together with the LC link comprising the coil 212 and capacitor 213.
  • coil 212' is connected with main resonance capacitor 132' and load capacitor 121', wherein the FSK demodulator 133 is connected at the above ground coupler part 210B at the coil 212' to provide the second mircoprocessor 120' with the tuning information for adjusting the load capacitor 121' part of the LC link which may include a resistor part (not shown) and which is connected as input for the rectifier 135' of this second above ground stage in a tunnel or runway lighting application. In a pool or pond lighting and sensor application this part would be immersed in the liquid environment.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP21205249.2A 2020-10-29 2021-10-28 Beleuchtungs- und sensorsystem Active EP3993566B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20204634 2020-10-29

Publications (2)

Publication Number Publication Date
EP3993566A1 true EP3993566A1 (de) 2022-05-04
EP3993566B1 EP3993566B1 (de) 2024-05-29

Family

ID=73039860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21205249.2A Active EP3993566B1 (de) 2020-10-29 2021-10-28 Beleuchtungs- und sensorsystem

Country Status (1)

Country Link
EP (1) EP3993566B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002970A1 (en) 1994-07-13 1996-02-01 Auckland Uniservices Limited Inductively powered lighting
US5559377A (en) 1989-04-28 1996-09-24 Abraham; Charles Transformer coupler for communication over various lines
WO2010093997A1 (en) 2009-02-13 2010-08-19 Witricity Corporation Wireless energy transfer in lossy environments
WO2011116404A1 (de) 2010-03-23 2011-09-29 D. Swarovski Kg Induktive beleuchtungseinrichtung
US20140008991A1 (en) 2010-09-06 2014-01-09 Innovation Limited Authentication and control for inductive power transfer systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559377A (en) 1989-04-28 1996-09-24 Abraham; Charles Transformer coupler for communication over various lines
WO1996002970A1 (en) 1994-07-13 1996-02-01 Auckland Uniservices Limited Inductively powered lighting
WO2010093997A1 (en) 2009-02-13 2010-08-19 Witricity Corporation Wireless energy transfer in lossy environments
WO2011116404A1 (de) 2010-03-23 2011-09-29 D. Swarovski Kg Induktive beleuchtungseinrichtung
US20140008991A1 (en) 2010-09-06 2014-01-09 Innovation Limited Authentication and control for inductive power transfer systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H WU: "AC Processing Controllers for IPT Systems", A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF D OCTOR OF PHILOSOPHY IN ELECTRICAL AND COMPUTER ENGINEERING, 1 January 2009 (2009-01-01), Auckland, pages 1 - 245, XP055454643, Retrieved from the Internet <URL:https://researchspace.auckland.ac.nz/handle/2292/6127> [retrieved on 20180227] *

Also Published As

Publication number Publication date
EP3993566B1 (de) 2024-05-29

Similar Documents

Publication Publication Date Title
US20190041538A1 (en) Utility locating transmitter apparatus &amp; methods
US7276910B2 (en) Compact self-tuned electrical resonator for buried object locator applications
US4675579A (en) Coupling of carrier signal from power line
US4507646A (en) Radio communication system
US9768645B2 (en) System for transferring energy by electromagnetic coupling
KR101829257B1 (ko) 셀 분할에 기초한 무선 전력 전송 시스템
US5764127A (en) Inductive transmitters for conductor location
CN101557032B (zh) 用于控制向电气负载供电的射频控制装置
US20040000974A1 (en) Planar resonator for wireless power transfer
US6813316B2 (en) Array for the transmission of electrical energy or signals
CN101803224A (zh) 远程低频率谐振器和材料
CN102362554A (zh) 包括远程控制信号接收器的发光器件系统和驱动器
KR20130107955A (ko) 공진 주파수를 조정해서 커플링 효율을 높이는 무전전력 전송 시스템 및 방법
MX2007001421A (es) Metodo y sistema de conexion de senal de radiofrecuencia en lineas de alimentacion de tension media con dispositivo de auto-sintonizacion.
US20080266834A1 (en) Antenna Through the Use of Lamp Electrodes
KR20150011274A (ko) 무선 전력 전송 시스템에서 전력 전송 유닛 및 전력 수신 유닛과 그 통신 방법
JP2019530408A (ja) 無線電力伝送装置、無線電力送信システム、及び無線電力送信システムを駆動する方法
EP3993566B1 (de) Beleuchtungs- und sensorsystem
JP2019535224A (ja) 無線電力伝送装置、無線電力送信システム、及び無線電力送信システムを駆動する方法
KR20030085680A (ko) 전력선통신용 어뎁터
WO2013141533A1 (ko) 무선전력 전송용 송신기 및 이를 구비한 무선전력 전송시스템
US11139686B2 (en) System and method for wireless transmission of power
US20180375379A1 (en) Voltage source isolation in wireless power transfer systems
RU2342782C1 (ru) Устройство передачи информации по линиям наружного освещения
EP0880874B1 (de) Beleuchtungssteuerungsanordnung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221103

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231218

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CAUSEVIC, ADIS

Inventor name: PIAI, GUIDO

Inventor name: GRABHER, RENE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR