DE102016104486A1 - Illumination system with signaling of a communication connection - Google Patents

Abstract

A connection of a terminal (E) to a communication device (B1) of a lighting system should be reliably detected. For this purpose, a lighting system with a lighting device (L1), a control device for controlling the lighting device, a communication device (B1) for wireless transmission and / or reception located in or on the lighting device, and a terminal (E) for communication with the communication device (FIG. B1) is provided. The control device is designed to control the lighting device (L1) only in a predeterminable manner if the terminal (E) is in communication communication with the communication device (B1).

Description

The present invention relates to a lighting system comprising a lighting device, a control device for controlling the lighting device, a communication device for wireless transmission and / or reception arranged in or on the lighting device and a mobile terminal in particular, which is designed for communication with the communication device. Moreover, the present invention relates to a method for operating a lighting system comprising a lighting device, a wireless transmission and / or reception communication device disposed in or on the lighting device, and a (mobile) terminal configured to communicate with the communication device.

The so-called "beacon technology" is based on a transmitter-receiver system. A "Beacon" (in German: "Beacon" or "beacon" or "Peilsender") is a small, mostly battery-powered transmitter that emits a signal in (definable) time intervals usually on the Bluetooth low-energy standard. The radio signal of each beacon is characterized by a unique identification number (so-called UUID). Beacons can be used to give objects and places digital identification. Objects (where a beacon is installed) and locations (where a beacon is installed, for example, on a wall) can thus be identified by terminals (e.g., smart devices) in the signal field of the beacon.

Beacons can be used to identify a location or to locate it. Placement of one or more beacons in a building area thus creates a kind of radio-based grid in which a smart device can locate itself via the BLE interface (Bluetooth Low Energy) and corresponding algorithms. The individual identification numbers of the installed beacons give a location an identifier with which a smart device can approximately determine the position (basic transmission area of the beacon can be determined). Algorithms on the smart device may determine the positional accuracy, e.g. improve on signal strengths. It is necessary for the smart device to be able to access information in a repository (e.g., on a cloud server) (e.g., identification number and mapping). If a terminal device (for example a smart device) comes within the range of a transmitter, it can detect the identification number and, for example, determine the location via a server query. Among other things, the location algorithms access the received signal strength of the beacons in the vicinity, in particular as an indicator for the distance to the respective beacon.

The present invention is based on the basic invention of installing Beacons in lighting / lighting technology. In particular, the advantage is used that a light installation provides a permanent energy access to provide the beacon with energy. This in turn results in the advantage that the battery of the beacon does not have to be replaced and thus corresponding life cycle costs or processes can be saved. In addition, parameterization of the beacon can be set with higher power consumption without reducing the lifetime of the beacon. Installation processes of beacons and lighting technology can also be standardized. Another advantage is a defined locking position of a beacon transmitter, which is well protected against manipulation. A place can thus be given a clear and secure identifier.

• – Energieversorgung der Lichtinstallation anstatt einer Batterie nutzen, um die Lebenszykluskosten des Beacon zu reduzieren;
• – Energieversorgung der Lichtinstallation nutzen, um die Sendeparameter an den Dienst und nicht an die verfügbare Restenergie beziehungsweise die Parameter der Batterie anzupassen (beispielsweise häufige Sendezyklen erzeugen hohe Genauigkeit der Dienste, jedoch auch höheren Energieverbrauch);
• – Austausch der Batterie konventioneller Beacons birgt Risiken (z.B. im Hinblick auf Fehler in der Handhabung);
• – Vermeidung einer Nicht-Verfügbarkeit der Dienste durch eine unterbrechungsfreie Energieversorgung des Beacon;
• – Installationsort unterhalb der Decke ist ideal für die Signalausbreitung des Beacon;
• – Installationsort unterhalb der Decke macht das Gesamtsystem robuster gegen Störungen/Abschattungen durch Objekte auf Höhe der Flurebene im Gegensatz zu einer Installation des Beacon selbst auf Höhe der Flurebene;
• – Beacon wird vor Manipulation/Fremdzugriff (versehentlich, mutwillig) geschützt;
• – Beleuchtung und Dienste (z.B. Ortungsdienste) werden als Gesamtsystem „aus einer Hand“ angeboten (d.h. Systemlieferant ist auch Dienst-Anbieter);
• – Möglichkeit zur Nutzung des sicheren Kommunikationsnetzwerks der Lichtinstallation, z.B. um den Beacon zu konfigurieren oder Beacons untereinander zu vernetzen;
• – Vereinheitlichung der Installationsprozesse von Beacons und Lichtinstallation;
• – Möglichkeit zur Kopplung zu weiteren Systemelementen der peripheren Gebäudeinfrastruktur über das Kommunikationsnetzwerk der Lichtinstallation, z.B. Elementen der Sicherheitstechnik;
• – optisch ansprechendes System, da der Beacon nicht sichtbar in der Lichtinstallation untergebracht werden kann.

An overview of potential uses of beacons in lighting technology offers the following list:

• - Use the power supply of the light installation instead of a battery to reduce the life cycle cost of the beacon;
• - Use the power supply of the light installation to adapt the transmission parameters to the service and not to the available residual energy or the parameters of the battery (for example frequent transmission cycles generate high accuracy of the services, but also higher energy consumption);
• - Replacing the battery of conventional beacons poses risks (eg with regard to errors in handling);
• - avoidance of non-availability of the services by an uninterruptible power supply of the beacon;
• - Location below the ceiling is ideal for signal propagation of the beacon;
• - Place of installation below the ceiling makes the whole system more robust against disturbances / shadows caused by objects at the level of the corridor level, in contrast to an installation of the beacon itself at the level of the corridor level;
• - Beacon is protected against manipulation / external access (accidental, wanton);
• - Lighting and services (eg location services) are offered as a one-stop system (ie system supplier is also a service provider);
• - possibility to use the secure communication network of the light installation, eg to configure the beacon or to network beacons with each other;
• - standardization of the installation processes of beacons and light installation;
• - Possibility of coupling to other system elements of the peripheral Building infrastructure via the communication network of light installation, eg elements of safety technology;
• - visually appealing system, as the beacon can not be placed visible in the light installation.

A beacon may be arranged in or on an electrical lighting device. The beacon communicates with a terminal (e.g., smart device). The beacon is optionally connected via a communication connection with other beacons or with infrastructure elements.

Within an area, people and devices may be challenged to navigate, navigate, and locate and use other local digital services (e.g., apps or app features, Google Maps, Lightify Light Control). The light installation with integrated beacon in one area becomes a location or orientation system for these useful potentials. With the thus realizable self-location of the terminal services can now be provided, such as navigation or the provision of location-specific information.

One aspect of beacon technology is the ability to configure typical parameters such as signal strength and beacon transmission interval. With different configurations different application scenarios can be supported individually. For example, if high quality of service (accurate localization at short intervals) is required (e.g., in indoor navigation), very short time intervals need to be configured.

Currently, batteries are used to power the beacons. The need to change these batteries in regular cycles results in a high outlay and correspondingly high life cycle costs for the beacons.

High service quality - such as high positioning accuracy, long range, short transmission interval - requires a relatively large amount of energy at the transmitter module, so that the battery of a battery-powered beacon must be replaced after a short time (for example, after one month). Each replacement of a battery in addition to the disadvantage of replacement costs also carries the risk that the functionality of the positioning system is adversely affected by small changes in position or incorrect handling of the beacons. If necessary, there is a risk that the operator (for example, a supermarket owner) is unaware of the energy shortage of the beacons or will not find the beacons if sufficient residual energy is no longer available. However, the services (e.g., navigation) of the beacons should be permanently available to the user. This requires an uninterruptible power supply.

The installation / installation of the beacons on or in or as part of a light installation / luminaire (hereafter collectively referred to as a lighting device) would allow a battery powered beacon to use the power supply of the Beacon's power supply and thus the battery of the beacon Beacon to substitute and the associated problems (see above) counteract.

A specific problem is thus a communication device for transmitting and / or receiving (for example beacon) in / on or as part of a lighting device, wherein the communication device should be supplied with energy via the lighting device. An energy buffer (e.g., battery, capacitor) could be part of the overall system. This would provide the communication link with the necessary power in operation when the power supply to the lighting device is interrupted (for example, in the event that the light is switched off and does not emit light).

Another challenge could be a service area equipped with at least one, typically multiple, communication devices (e.g., beacons). This results in a terminal (e.g., smart device) receiving multiple signals from different communication devices (e.g., BLE signals from beacons) simultaneously. Furthermore, in this context there is no clear feedback from the system with which communication device the terminal has made a communication connection. In addition, there may be a need for the communication device (e.g., the beacon) to be configured, but it is unclear to the user of the terminal which communication device the terminal has contacted. As a result, for example, installation-related configuration variants of the transmission parameters (for example different installation heights, different distances of the luminaires to the ceiling, different distances to reflective objects and so on) can not be realized. Finding out with which communication device the terminal is connected, unintentionally costs time and thus effort.

The object of the present invention is therefore to reliably give a user the possibility of establishing a communication with the communication device from his terminal.

According to the invention this object is achieved by a lighting system according to claim 1 and a method according to claim 10. Advantageous developments of the invention will become apparent from the dependent claims.

Accordingly, there is provided a lighting system including a lighting device (e.g., LED module, LED tube) and a control device for controlling the lighting device in the form of a ballast, for example. The control device can be integrated in the lighting device. In addition, the illumination system has a communication device for wireless transmission and / or reception arranged in or on the lighting device. Such a communication device may be, for example, a beacon or a beacon. Furthermore, the lighting system belongs to a particular mobile terminal, which is designed for communication with the communication device. Thus, a wireless communication link is established between the communication device and the (mobile) terminal (e.g., smart device). Advantageously, the control device is designed to control the lighting device only in a predeterminable manner when the terminal is in communication with the communication device. The lighting device should therefore be specifically controlled in a specific manner, if the terminal communicates with the communication device. If the two do not communicate, this specific control should not occur. The user of the lighting system can thus reliably detect whether or not the terminal is in communication with the specific communication device.

In one embodiment, the communication device is designed to increase its electrical consumption by a predetermined amount as soon as the communication connection between the terminal and the communication device is established. Due to this additional consumption of the lighting device, which indeed supplies the communication device with energy, less power available. As a result, flickering or darkening of the lighting device caused by the power consumption of the communication link becomes more noticeable.

In a special embodiment, the communication device to increase the electrical consumption powered exclusively for increasing the power consumption load resistor or increase transmission power. In the case of the current load, the additional consumption is not used, while an increase in the transmission power, an additional benefit in terms of communication stability.

In an alternative embodiment, the communication device has an energy buffer memory, in which a value compared to a setpoint for the operational use setpoint increased current is impressed in the presence of the communication link. That is, when the communication connection between the terminal and the communication device is established, the power storage buffer (e.g., backup capacitor) is charged with an increased charging current. Also, this increased charging current leads to a higher energy consumption of the communication device, which is why less power is available for the lighting device, and the flicker, which may be an optical sign for the existing communication link, may be better seen.

According to a further embodiment, the communication device is designed to emit a higher power in the presence of the communication connection than in the absence of the communication connection. As a result, the power consumption of the lighting device is limited, so that their communication-related flicker may be better seen.

According to a further embodiment, the control device may be designed to generate a short circuit, in particular in a pulsating manner, when the lighting device is driven in a predeterminable manner. When the communication connection is established, therefore, the lighting device is intentionally heavily modulated by short-circuiting it or its lighting elements (if necessary, under current limitation). This short-circuiting is particularly advantageous pulsating, so that the lighting device is pulsed accordingly, so that the communication connection is optically easily indicated.

The triggering in a predeterminable manner may include a particular periodic modulation or a predetermined temporal pattern of the list strength of the lighting device. Such a (periodic) modulation or a suitable temporal pattern can easily be perceived as an indication of the communication device.

Furthermore, the triggering in a predeterminable manner may include switching on and off a light-emitting diode device of the lighting device which is separate for signaling the presence of the communication connection. The lighting device thus has an additional or separate light-emitting diode device (eg red LED, green LED, infrared LED), which signals the established communication connection. To the Improved recognition of the established communication connection can therefore be paid to the lighting of the specifically provided light emitting diode device and it must not be recognized a slight flicker of the lighting device itself.

In a likewise preferred embodiment, the terminal is designed to determine the identity of the lighting device as a function of the activation of the lighting device by the control device. This does not require a user to recognize even that communication device in / on a lighting device with which his terminal is in communication connection. Rather, his terminal recognizes that lighting device or the associated communication device to which the communication link is made. For this identification, the lighting device, for example, also use infrared radiation or higher frequencies that could not be perceived by the human eye. For example, a camera of a mobile phone can detect infrared radiation.

The above object is also achieved by a method for operating a lighting system comprising a lighting device (L1), a arranged in or on the lighting device and powered by the lighting device with energy communication device for wireless transmission and / or reception (B1) and in particular mobile terminal, which is designed for communication with the communication device has, wherein the lighting device is modulated in a predeterminable manner only when the terminal is in communication with the communication device.

The same advantages apply to this method as for the illumination system according to the invention. In addition, it can be further developed with process features that correspond to the functional features of the lighting system described above.

The present invention will now be explained in more detail with reference to the accompanying drawings, in which:

1 a schematic diagram of the construction of a lighting system according to the invention with peripherals;

2 a schematic diagram of an alternative illumination system; and

3 the schematic structure of another embodiment of an illumination system according to the invention.

The embodiments described in more detail below represent preferred embodiments of the present invention. It should be noted that the individual features can be realized not only in the described feature combinations, but also in isolation or in other technically meaningful combinations.

An exemplary lighting system has, in addition to the actual lighting device, at least one communication device arranged in or on the lighting device (for example, beacon or beacon). The communication device is for sending and / or receiving information, e.g. for locating or providing location-specific information.

The communication device is powered by the lighting device. One way in which no costly energy converter is needed is to electrically connect the communication device (e.g., beacon) in parallel to an LED unit or group of LEDs, or perhaps to an LED carrier module.

• – Betriebsmodus: Er beschreibt den angestrebten Betriebszustand, in welchem die Kommunikationsvorrichtung konfiguriert ist und entsprechend dem Einsatzzweck beispielsweise eine Identifikationsnummer gemäß der vorgegebenen Sende-Parameter zyklisch aussendet, um ortsbezogene Services beispielsweise auf einem Smart-Device zu ermöglichen.
• – Konfigurationsmodus (Default-Modus): In diesem Modus wird beispielsweise ein optisches Signal ausgesendet.

For the use of the communication device (eg beacon) different modes can be provided:

• Operating mode: It describes the desired operating state in which the communication device is configured and, for example, cyclically sends out an identification number according to the given transmission parameters in order to enable location-based services, for example on a smart device.
• - Configuration mode (default mode): In this mode, for example, an optical signal is transmitted.

In one embodiment, a communication link between a terminal and the communication device, such as the transceiver device (e.g., beacon), is established in / on or as part of a light installation / light or illuminant in a service area. In addition, e.g. a configuration of the communication device sought, for example, to determine a particular transmission parameters.

Since the communication device is supplied with energy via the lighting device, a relatively high removal of energy by the communication device can also be felt on the lighting device. As a result of the communication, the light intensity of the lighting device can sink noticeably. This can be used to provide an indication of the existence to receive an existing communication. Since the energy consumption for the communication usually varies somewhat, the communication is noticeable by a flickering or darkening of the lighting device. Via an increased current consumption of the communication device, for example in the LED parallel connection during communication (eg for a configuration), a flickering (cyclic optical signal with a defined interval / a defined frequency) of the lighting device (eg LED) or the flashing signal is thus provoked or generated , In this way, it is visually displayed between which lighting device or communication device is a communication connection to the terminal (optical feedback of the system).

However, the flickering of the lighting device may be relatively low. Therefore, several variants V1 to V7 are proposed below in order to make the flickering or the corresponding optical signal clearer:
V1: The energy or power consumption of the communication device is increased by an increased charge current for a buffer / backup capacitor, whereby the power available for the lighting device is reduced, which may lead to a better perceptibility of the flicker.

V2: The power consumption of the communication device is increased via an increased transmission power of the communication device (e.g., beacon).

V3: A driver of the communication device is switched with an additional load resistor. Its control leads to an increased current consumption.

V4: In the communication device, a pulsating short circuit is preferably generated after a current limiting, if appropriate. As a result, the power supply of the lighting device or of the LEDs also partially breaks down.

V5: On a driver of the communication device, a separate LED or a separate LED module (e.g., red, green) is hung. With such an LED or such an LED module can be visually displayed directly that there is a communication connection to the terminal.

V6: A control device or an electronic ballast (ECG) can be used to switch all LED modules on and off when communication is detected (control line via ECG).

V7: The presence of communication is indicated by an infrared LED. As a result, the terminal can be directly displayed which lighting device or which communication device is in communication with it.

The optical signal is designed, for example, such that it has a defined frequency / transmission pattern / coding according to use for different receivers. Among other things, a distinction is made between a human receiver (approximately 0.5 Hz interval / frequency) and a machine receiver (for example a light sensor / camera of a smart device). In the latter case, for example, it is a higher-frequency, optical signal / flicker of the lighting device (for example greater than 50 Hz).

According to a concrete example, the communication between the communication device in / on the lighting device and the terminal may be used for automatically initiating a configuration of the communication device (e.g., beacon) by the terminal (e.g., smart device, personal computer, or specific configurator). If, for example, the smart device recognizes a modulation of the lighting device, the light which is to be configured by itself or its communication device can optionally be displayed on the display with corresponding orientation information. The configuration can then be triggered by operating the terminal.

Based on 1 to 3 Now some concepts for the realization of the illumination system according to the invention are shown. According to a first concept, which in 1 is shown, the lighting system comprises a lighting device L1, namely, for example, a lamp, a light installation or a lighting means. In addition, the illumination system has a communication device for transmitting and / or receiving, which can be realized, for example, as a beacon or beacon B1. In addition, the lighting system has a terminal E (eg smart device). Finally, the lighting system here also has an energy storage ES. This may for example have a battery AK and / or a capacitor C.

The lighting device L1 is in physical connection PV1 with the beacon B1 (representative of any communication device). Accordingly, the beacon B1 is arranged in or on the lighting device L1 or is part of the lighting device L1.

The lighting device L1 has an energy interface ES, which can be supplied, for example, from a peripheral network N (eg switched mains supply, in particular AC 230V). Furthermore, the lighting device L1, for example, have LEDs that are powered by the power interface ES. By means of the LEDs or other lighting elements, the lighting device L1 can produce a wireless communication link KV1 with a receiver EPF (eg human). The LEDs of the lighting device L1 thus not only serve to generate light for illumination, but also to generate a recognition or communication signal.

The beacon B1 also has an energy interface ES. This receives energy here from the energy interface ES of the lighting device L1 via a corresponding energy transmission channel. In addition, the energy interface ES of the beacon B1 supplies a beacon-internal information processing unit IV. The beacon B1 is in communication connection KV2 with the terminal E. For this purpose, a corresponding power is made available, for example by means of electromagnetic waves. The beacon B1 can be configured, for example, with regard to the transmission power, the transmission intervals, the alignment and the like, preferably by the terminal E.

The energy store ES is in physical connection PV2 with the beacon B1. This means that the energy store ES is arranged in or on the beacon B1. In addition, the energy store ES preferably supplies energy to the energy interface ES of the beacon B1 via a separate energy transmission channel when the supply from the lighting device L1 is not present.

In this concept, therefore, the identification of the communicating with the terminal E communication device (here Beacon B1) by means of a modified light or radiation output of the LEDs, which are mounted in the lighting device L1. The changed light or radiation output of the LEDs can e.g. by switching on and off with a certain frequency or at intervals. Causing or triggering or intensifying for the changed light or radiation output may be an increased charging current of the energy store ES or an increased transmitting power of the communication device B1 (compare variants V1 to V7 above).

In a slightly modified concept, the energy transmission channel of the energy interface ES of the lighting device L1 and the power interface ES of the beacon B1 by a short-circuit device (in 1 not shown) of the beacon B1 are interrupted or shorted. Thus, the transmission power of the beacon B1 to the terminal E can be switched on and off. Alternatively, the energy channel from the mains supply N to the lighting device L1 can also be interrupted by a short circuit device (eg pulsating). The supply voltage of the LEDs of the lighting device L1 then breaks down correspondingly pulsating. The short-circuit devices are preferably controlled by the information processing device IV of the beacon B1 so that the (pulsating) short circuits are generated when the communication link KV2 is connected to the terminal E. If there is no communication connection KV2, the short circuits will not be initiated.

Another, in 2 The concept presented is based on a similar lighting system as that of 1 , In addition, the lighting device L1 has here, in addition to the LEDs for lighting, a separate signaling LED SL. With her to the receiver EPF own communication link KV3 can be made. This is based on continuous or, for example, pulsating light of the signaling LED SL, which is activated when the information processing unit IV of the beacon B1 detects a communication link KV2 to the terminal E. Thus, there is preferably a corresponding communication connection between beacon B1 and lighting device L1, which in 2 is not shown for clarity.

In this concept, therefore, the identification of the communication device B1 connected to the terminal E takes place by means of the additional signaling LED SL (for example, blinking red or green).

Another concept is in 3 played. The structure of the lighting system corresponds to that of 2 essentially that of 1 , In this concept, however, there is additionally or alternatively a communication link KV4 from the LEDs of the lighting device L1 to the terminal E. The light of the LEDs is therefore used not only for illumination but also for the terminal E as a detection signal. Since the evaluation is not done by a human, higher frequencies can be used, for example, to detect the operation of the beacon B1, for example, based on its increased power consumption.

Moreover, in the example of FIG 3 also a current limiting unit SB. This is arranged in the energy transmission channel from the energy interface ES of the lighting device L1 to the energy interface ES of the beacon B1. It limits the power for the communication device or the beacon B1.

In addition, the beacon B1 here is in physical connection PV3 with a load resistor RL. The latter is supplied with power via its own energy transmission channel from the energy interface ES of the beacon B1. This is controlled by the information processing unit IV for the purpose that an increased current is to be drawn by the lighting device L1. As a result, the LEDs of the lighting device L1 are supplied with less power, so that a flickering of the communication connection KV4 caused by the communication link KV2 makes better noticeable.

In this concept of 3 Thus, the identification of the communicating with the terminal E communication device B1 by means of a modified light or radiation output of the LEDs, which are mounted in the lighting device L1, by the terminal E itself. The changed light or radiation output of the LEDs, for example, by An - And off with a certain frequency happen or at intervals, the light signal still additional information can be modulated. For modulating an additional load resistor RL can be connected.

Advantageously, according to the invention, the beacons can be operated battery-independently at least during operation of the lighting device. Thus, they are no longer limited in terms of power supply in the application time. In addition, expensive battery replacement services can be eliminated, resulting in a reduction in the life cycle cost of the beacons. Furthermore, services of the beacons are made available without interruption. A high quality of service can be provided, since the setting of the parameters of the beacon depends on the service and not on the available residual energy. A faulty replacement of the battery is not necessary. In addition, there is no limitation of the temperature range of use of the entire system by a battery. Finally, there is a resource-saving use of the beacon technology.

LIST OF REFERENCE NUMBERS

• AK

  battery pack

  B1

  Beacon / communication device

  e

  terminal

  IT

  Power interface

  EPF

  receiver

  KV1

  communication link

  KV2

  communication link

  KV 3

  communication link

  KV4

  communication link

  IV

  Information processing unit

  L1

  lighting device

  N

  power supply

  RL

  load resistance

  PV1

  physical connection

  PV2

  physical connection

  PV3

  physical connection

  SB

  Strombegrenzungf

  SL

  Signaling LED

Claims (10)

Lighting system with - a lighting device (L1), - a control device for controlling the lighting device, - arranged in or on the lighting device and powered by the lighting device communication device (B1) for wireless transmission and / or reception (B1) and - a terminal (E), which is designed for communication with the communication device (B1), characterized in that - the control device is adapted to control the lighting device only in a predeterminable manner, when the terminal (E) with the communication device (B1) in communication (KV2) stands.  Lighting system according to claim 1, wherein the communication device (B1) is adapted to increase its electrical consumption by a predetermined amount as soon as the communication connection between the terminal and the communication device is.  Lighting system according to claim 2, wherein the communication device (B1) to increase the electrical consumption energized exclusively for the increase of the current consumption load resistor.  Illumination system according to claim 2 or 3, wherein the communication device (B1) has an energy buffer memory (ES) into which a setpoint value, which is higher than the set value for normal use, is impressed in the presence of the communication connection (KV2).  Lighting system according to one of the preceding claims, wherein the communication device (B1) is adapted to radiate a higher power in the presence of the communication link (KV2) than in the absence of the communication link. Lighting system according to claim 1, wherein the control device is adapted to, in the Driving the lighting device (L1) in a predeterminable manner to generate a short circuit.  Lighting system according to one of the preceding claims, wherein the driving in a predeterminable manner comprises a modulation or a predetermined temporal pattern of the luminous intensity of the lighting device.  Lighting system according to one of the preceding claims, wherein the driving in a predeterminable manner, a turning on and off a for signaling the presence of the communication link (KV2) separately provided light emitting diode device (SL) of the lighting device (L1).  Lighting system according to one of the preceding claims, wherein the terminal (E) is adapted to determine in dependence on the control of the lighting device (L1) by the control device, the identity of the lighting device (L1). A method of operating a lighting system comprising a lighting device (L1), a wireless transmission and / or reception (B1) communication device (B1) located in or on the lighting device (L1) and powered by the lighting device (L1), and a terminal (E), which is designed for communication with the communication device (B1), characterized in that - the lighting device (L1) is modulated in a predeterminable manner only if the terminal (E) in communication with the communication device (B1) (KV2) stands.

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