DE102016121666A1 - LIGHTING SYSTEM WITH ANALYSIS SIGNAL EVALUATION - Google Patents

Abstract

It should be possible to easily determine the presence of objects. For this purpose, a lighting system with a lighting device (LE) and a transmitting device (SE), which is arranged in or directly on the lighting device (LE), provided for wireless transmission of a signal. The illumination system further comprises a receiving device (EE), which is physically in a fixed local relationship to the transmitting device (SE) separately from the transmitting device (SE), for receiving an analysis signal (RW) caused by the signal (SW) and for generating a corresponding received signal. Furthermore, the illumination system has an evaluation device (IS) for evaluating the received signal with regard to its signal strength.

Description

The present invention relates to a lighting system with a lighting device and a transmitting device, which is arranged in or directly on the lighting device, for transmitting a signal. Moreover, the present invention relates to a method for operating a corresponding illumination system.

So-called "beacons" can be combined with lights to provide light-specific or other information. The beacon technology is based on a transmitter or transceiver system. A beacon is a small, mostly battery-powered transmitter that emits a signal in (definable) time intervals typically on the Bluetooth low-energy standard (BLE). 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 a 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 (eg, smart devices) in the beacon's beacon.

With the help of a beacon, for example, a location can be identified or a location can be carried out. Placement of one or more beacons in a building area creates a kind of radio-based grid in which a smart device can locate itself via the BLE interface and corresponding algorithms. The individual identification numbers of the installed beacons give a location an identifier, by means of which a smart device can approximately determine the position (basic transmission area of the beacon can be determined). Algorithms on the smart device, the position accuracy z. B. improve signal strengths. It is necessary for the smart device to be able to access information in a repository (eg on a cloud server) (eg identification number and mapping). If a terminal, for example 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.

Basically, as mentioned, beacons can be installed in lighting or 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 Beacon 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.

• - Es kann die Energieversorgung der Lichtinstallation anstatt einer Batterie genutzt werden, um die Lebenszykluskosten des Beacon zu reduzieren.
• - Die Energieversorgung der Lichtinstallation kann genutzt werden, um die Sendeparameter an den Dienst und nicht an die verfügbare Restenergie beziehungsweise die Parameter der Batterie anzupassen (beispielsweise erzeugen häufige Sendezyklen eine hohe Genauigkeit der Dienste, jedoch auch höheren Energieverbrauch).
• - Der Austausch der Batterie konventioneller Beacon birgt Risiken, nämlich beispielsweise im Hinblick auf Fehler in der Handhabung.
• - Die Nicht-Verfügbarkeit der Dienste kann durch eine unterbrechungsfreie Energieversorgung des Beacon vermieden werden.
• - Ein Installationsort unterhalb der Decke ist ideal für die Signalausbreitung des Beacon.
• - Ein 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.
• - Ein Beacon kann vor Manipulationen/Fremdzugriffen (versehentlich, mutwillig) geschützt werden.
• - Beleuchtung und Dienste (z. B. Ortungsdienste) können als Gesamtsystem „aus einer Hand“ angeboten werden.
• - Es besteht die Möglichkeit zur Nutzung des sicheren Kommunikationsnetzwerks der Lichtinstallation, um beispielsweise den Beacon zu konfigurieren oder die Beacons untereinander zu vernetzen.
• - Eine Vereinheitlichung der Installationsprozesse von Beacon und Lichtinstallation ist möglich.
• - Weiterhin besteht die Möglichkeit zur Kopplung zu weiteren Systemelementen der peripheren Gebäudeinfrastruktur über das Kommunikationsnetzwerk der Lichtinstallation, z. B. zu Elementen der Sicherheitstechnik.
• - Es kann ein optisch ansprechendes System bereitgestellt werden, da der Beacon nicht sichtbar in der Lichtinstallation untergebracht sein kann.

An overview of the potential benefits of integrating a beacon into a light installation can be found in the following list:

• - It can be used to power the light installation instead of a battery to reduce the life cycle cost of the beacon.
• - The energy supply of the light installation can be used 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 a high accuracy of the services, but also higher energy consumption).
• - Replacing the battery of conventional beacon poses risks, for example, in terms of handling errors.
• - The non-availability of the services can be avoided by an uninterruptible power supply of the beacon.
• - An installation location below the ceiling is ideal for signal propagation of the beacon.
• - An installation site below the ceiling makes the overall system more robust against disturbances / shadows caused by objects at the height of the corridor level, in contrast to an installation of the beacon itself at the level of the corridor level.
• - A beacon can be protected against manipulation / foreign access (accidental, wantonly).
• - Lighting and services (eg location services) can be offered as a one-stop-shop system.
• - It is possible to use the secure communication network of the light installation, for example to configure the beacon or to network the beacons with each other.
• - A unification of the installation processes of Beacon and light installation is possible.
• - Furthermore, there is the possibility of coupling to other system elements of the peripheral building infrastructure via the communication network of light installation, z. B. to elements of safety technology.
• - It can be provided a visually appealing system, since the beacon can not be visibly housed in the light installation.

1 shows a schematic representation of the integration of a beacon in a light installation. A central beacon Bl is arranged on an electric lighting device BE, which indicates the physical connection PV1. The Beacon Bl is optionally assigned a module M with data processing unit DV and data interface DS. The beacon Bl is connected to a terminal E via a wireless communication link KV1. There may also be several terminals available for communication with the Beacon Bl. The beacon Bl together with the terminal or terminals E form a data transmission system DT.

The beacon Bl can be in communication connection KV2 with one or more further beacons B2. Furthermore, a communication link KV3 to an infrastructure IE, z. B. Internet or central services server exist. The infrastructure device can serve to control and / or transmit information.

The local beacon Bl of the electric lighting device BV can serve as a pure transmitting device or as a combined transceiver device.

In one application example, people and devices may face the challenge of navigating, navigating, or finding other local digital services within an area (eg, apps or app features, Google Maps, Lightyfy lighting control, etc.). , The light installation with integrated beacon in one area becomes a location or orientation system for these potential benefits. 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. If a high quality of service (accurate localization at short intervals) is required (such as in an indoor navigation), z. B. to configure very short transmission intervals.

Currently the Beacon batteries are used for the energy supply. The need to change these batteries in regular cycles, results in a high cost and correspondingly high life cycle costs for the beacon.

A high service quality - for example, high positioning accuracy, long range, short transmission interval - requires comparatively much energy at the transmitter module, so that the battery of a battery-powered beacon after a short time (eg, after one month) must be replaced. Any replacement of a battery also carries the risk that the functionality of the positioning system is adversely affected by a small change in position or incorrect handling of the beacon.

If necessary, there is the risk that the operator (eg owner of a supermarket) is not aware of the energy shortage of the beacon or does not find the beacon again if sufficient residual energy is no longer available. However, the services of the beacon (eg navigation) should be permanently available to the user. This requires an uninterruptible power supply.

The installation or installation of the beacon on or in or as part of the light installation or a light source would make it possible for a battery-operated beacon, the energy supply of the light installation (eg ballast of the lamp or the light source) for the energy supply of Beacon to use and thus replace the battery of the Beacon and the associated problems (see above) counteract.

In particular, the light installations / luminaires or illuminants (hereinafter referred to as light-emitting device) with integrated transceiver device or transmitting device (hereafter abbreviated to transmitting device, eg beacon) in a service area, eg. B. Parking area for motor vehicles, such as a parking garage, installed. There is the challenge that, for example, an operator of a corresponding service area must determine whether a parking space is already occupied, ie. H. whether a motor vehicle is parked on it, or whether the parking lot is not occupied. Conventional solutions for detecting the presence of a vehicle in a parking lot are complex and / or expensive.

The object of the present invention is therefore to provide a convenient monitoring option for a service area. For this purpose should also a corresponding method can be specified.

According to the invention this object is achieved by a lighting system according to claim 1 and a method according to claim 14. Advantageous developments of the invention will become apparent from the dependent claims.

According to the present invention, a lighting system with a lighting device and a transmitting device, which is arranged in or directly on the lighting device, for transmitting an electromagnetic signal (in particular radio signal) is provided with a specific identification information for the transmitting device. The transmitting device is thus for example integrated directly into the housing of the lighting device or attached to the housing of the lighting device. The transmitting device may be, for example, a beacon or a WiFi transmitter. The identification information is used, for example, for locating in order to be able to determine at the receiving end from which transmitting device (whose position is known) the received signal originates. This signal can now be used simultaneously to detect the presence of an object. Alternatively, the identification information can also be used for a luminaire control. Furthermore, the transmitting device can be fed via the same power supply as the lighting device. For example, the transmitting device can be supplied with power from a ballast of the lighting device.

In addition, the illumination system includes a receiving device (which is physically separate from the transmitting device) in a fixed local relationship with the transmitting device, for receiving an analysis signal caused by the signal and for generating a corresponding received signal. For example, the transmitting device is mounted at a first location and the receiving device at a second location. This fixed local relationship between the two devices is important in order to be able to quantitatively and qualitatively analyze corresponding transmission or reflection signals.

Furthermore, the illumination system has an evaluation device for evaluating the received signal with regard to its signal strength. The signal based on a reflection is thus evaluated at least with regard to its signal strength. Possibly. However, evaluations with regard to running time, polarization and the like can also be carried out. Overall, an area can thus be monitored by means of such a lighting system with the aid of the one or more lighting devices based on reflections.

In one embodiment, the receiving device also has a transmitting unit for transmitting an electromagnetic signal and / or the transmitting device also has a receiving unit for receiving an electromagnetic signal. Thus, a plurality of transceiver devices, each of which is the same design, can be used to monitor a service area. Optionally, the transmitting device and the receiving device (optionally together with the lighting device) may also be integrated into a common housing.

Preferably, the evaluation device is designed to perform a pattern analysis of the received signal in order to recognize a predetermined object. The receiving device is favorably designed in this embodiment so that it can take a two-dimensional image and generate a corresponding image signal as a received signal. The evaluation device then performs a pattern analysis as part of image processing. As an object, for example, a motor vehicle can be detected whose (metallic) surface provides for corresponding signal reflections.

The evaluation device can also be designed to determine a number and / or position of detected objects. This means that the image processing or pattern analysis is refined in such a way that individual objects in the image can also be localized. From this a corresponding position can be determined.

In a further preferred embodiment, a particularly meshed communication network is constructed between the transmitting device and the receiving device. The transmitting device and the receiving device form nodes of such a meshed communication network. Of course, a plurality of further transmitting devices and / or receiving devices can participate in the communication network. In particular, the transmitting devices and receiving devices in this case should be "mesh-capable" and able to independently establish the meshed communication network.

Furthermore, the evaluation device can be connected to the communication network, wherein the receiving device transmits the received signal via the communication network to the evaluation device. The evaluation device is in this case a separate node of the communication network. In particular, such a central evaluation device can be installed, which receives the received signals of all receiving devices and evaluates. In this way, not every receiving device has to be equipped with an evaluation device.

In addition, the evaluation device can be designed to distinguish a static object from a dynamic object. The evaluation device can thus detect whether the object in the image is moved or not. This is favorable, for example, when a parking space is to be monitored.

In a special embodiment of the illumination system, the latter has, in addition to the transmitting device, at least one further transmitting device, but the receiving device is the only device of respective signals. This means that a single receiving device receives the signals of all transmitting devices. As a result, a simplified reception and evaluation structure can be created.

In a special embodiment, the evaluation device is part of a ballast of the lighting device. In this case, the data processing capacity of the ballast is also used for the evaluation of the received signals of the receiving device. As a result, a simplified signal processing structure can be realized.

In a further embodiment, the evaluation device is integrated into the transmission device, and the reception signal can be transmitted via the communication network to the transmission device. In this way, a module can be provided in which both the transmitting device and a corresponding evaluation device are integrated in a housing. In this case, the evaluation device can use the power supply of the transmitting device.

Furthermore, the transmitting device and the receiving device can be configured to independently build a meshed network. As a result, the transmitting device and the receiving device can be easily integrated into a network or build a new network as a "germ cell".

Furthermore, the analysis signal may be a signal that has been generated by attenuation or reflection from the signal. For example, an object may reflect the signal, or the signal may shine through the object, so that the signal registered by the detector is a reflection or a damped transmission signal.

As part of a special application, a parking space arrangement is provided with a plurality of parking spaces and a lighting system with the above features, with the evaluation free parking spaces can be determined. The evaluation device is thus designed so that it can determine from the received signal or the received signals whether a parking space is occupied or not. The evaluation system should be able to recognize primarily vehicles, but also possibly other objects.

In a specific embodiment of the parking space arrangement, the lighting system has a plurality of lighting devices and a control device which is designed to lead to a free parking space by means of the lighting devices or to display it. The control device can thus control the lighting devices such that the lighting devices lead, for example, like a running light to a free parking space. Alternatively or additionally, a free parking space can also be illuminated by a special lighting by means of the lighting devices.

• - Empfangen eines von dem Signal verursachten Analysesignals durch eine Empfangseinrichtung, die (ev. körperlich von der Sendeeinrichtung getrennt) in einer festen örtlichen Beziehung zu der Sendeeinrichtung steht,
• - Erzeugen eines entsprechenden Empfangssignals durch die Empfangseinrichtung sowie
• - Auswerten des Empfangssignals hinsichtlich seiner Signalstärke durch eine Auswerteeinrichtung.

The above object is also achieved by a method for operating a lighting system with a lighting device, a transmitting device which is arranged in or directly on the lighting device, for wireless transmission of a signal with a specific for the transmitting device identification information by

• Receiving an analysis signal caused by the signal by a receiving device which (possibly physically separated from the transmitting device) is in a fixed local relationship with the transmitting device,
• - Generating a corresponding received signal by the receiving device and
• - Evaluating the received signal in terms of its signal strength by an evaluation.

The developments and advantages discussed above in connection with the lighting system can also be applied mutatis mutandis to the method according to the invention. The functional features of the means of the illumination system represent corresponding process characteristics.

• 1 eine schematische Darstellung der Integration eines Beacon in einer Lichtinstallation gemäß dem Stand der Technik;
• 2 ein Konzept eines Beleuchtungssystems mit sekundärer Sende-Empfangs-Einrichtung;
• 3 ein Konzept eines Beleuchtungssystems mit einem Monitoringsystem zum Empfang reflektierter oder transmittierter Signale;
• 4 ein Konzept eines Beleuchtungssystems mit primären und sekundären Empfangs-Einrichtungen in einem Gesamtverbund von Leuchtmitteln;
• 5 ein Konzept eines Beleuchtungssystems mit einem Monitioringsystem an einem Leuchtmittel und
• 6 einen Parkplatz mit dynamischer Erfassung.

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

• 1 a schematic representation of the integration of a beacon in a light installation according to the prior art;
• 2 a concept of a lighting system with secondary transceiver;
• 3 a concept of a lighting system with a monitoring system for receiving reflected or transmitted signals;
• 4 a concept of a lighting system with primary and secondary receiving devices in a total assembly of bulbs;
• 5 a concept of a lighting system with a monitoring system on a light source and
• 6 a parking lot with dynamic coverage.

The examples 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 the described feature combinations, but also in isolation or in other technically meaningful combinations.

For example, with the present invention, the presence of objects, e.g. B. motor vehicles, on open spaces, z. B. can be achieved in parking lots. This is achieved, for example, by means of a system comprising a primary transceiver or transmitting device (hereinafter short transmitting device) in / on or as part of a light installation / luminaire or a light source (hereinafter briefly lighting device, eg Beacon) and a secondary (Send -) receiving device, which in particular pronounced as a pure receiving device and can also be arranged on a light source. A reflected or transmitted signal (analysis signal) which was originally transmitted by the transmitting device (eg BLE signal) is detected by the receiving device and subsequently evaluated. The signal contains a unique identifier or an identification information with which it can be unambiguously assigned to the corresponding transmitting device.

In one embodiment, for example, a transmitting device (eg, beacon) is attached to a lighting device (in particular to a ballast), the transmitting device being supplied with energy via the lighting device. One possibility in which no complex energy converter is required is the electrical connection of the transmitting device parallel to LED modules or to a group of LEDs or possibly to an LED carrier module. Another possibility provides to use existing energy and communication interfaces of a digitally controlled light installation for the power supply of a transmitting device to a lighting device, this interface includes the primary side of the electronic ballast and communication interfaces and / or combined energy and communication interfaces. Since the digitally controlled light installation at the primary interface is always powered, even if the light z. B. is issued, an energy access for the transmitting device available.

A transmitted or reflected signal originally transmitted by the primary transmitter (eg, BLE signal) is detected by the secondary device. In this case, a received signal, which may be an image signal for example, is generated. For example, it is determined by a pattern analysis of the received signal whether or how many objects, for. B. motor vehicles are (at which position) in the area. An example of such a pattern analysis is the so-called fingerprinting method. Thus, by detecting changes in the received signal / reflected signal on the occupancy of an area, e.g. B. Parkplatzes, be inferred by a vehicle.

An advantageous embodiment provides that both the primary transmitting device and the secondary receiving device are part of an overall composite of luminaires or light sources with integrated transceivers in a service area, wherein the individual devices each form both a primary and a secondary transceiver can. For example, the receiving system element is a beacon, which in turn acts as a sender.

Furthermore, a specific embodiment is proposed, which comprises a communication network between the different subscribers (transmitting and / or receiving devices) of the overall network of transceiver devices or receiving devices in / on or in the vicinity of light installations / lights or light sources , The communication network may be wired (for example DALI bus, Power-Over-Ethernet / Ethernet, Powerline, etc.) or wireless (eg Bluethooth, WiFi, Zigbee, etc.). In either case, the network topologies are preferably "mesh" and / or "point-to-point" and / or serial, i. Bus architecture, feasible. Thus, the transmitted signal of a transmitting device after reflection on an object is received, for example, from another mesh-capable (transmitting) receiving device. This transmits the received data, for example, also via a mesh network to a central information processing device. In this information processing device or evaluation then the evaluation takes place by means of pattern analysis (s).

Possibly. can also be distinguished between static and dynamic detection. So can also be moving objects, such. B. moving vehicles, are detected via the dynamic change of the transmitted or reflected signals, for. B. at the entrance / access to the service area. Possibly. the pattern analyzes have to be adapted.

• Variante 1:
  • Separates zentrales Monitoring-System/Empfangseinrichtung, die lediglich die transmittierten oder reflektierten Signale empfängt, und/oder diese anschließend auswertet. Beispielsweise kommt für zehn primäre Sendeeinrichtungen (z. B. Beacon) in entsprechenden Lichtinstallationen ein einziges Monitoring-System/eine einzige Empfangseinrichtung zum Einsatz. Dieses/diese fungiert als Gateway zu einem zentralen Server.
• Variante 2:
  • Eine sekundäre (Sende-)Empfangseinrichtung an einem Leuchtmittel kann, wie erwähnt, ggf. selbst wiederum als primäre Sende-(Empfangs-)Vorrichtung auftreten.
• Variante 3:
  • Eine primäre Sendeeinrichtung ist gleichzeitig Sender des Signals und Empfänger des reflektierten Signals.
• Variante 4:
  • Objekte, z. B. Kraftfahrzeuge, können selbst als Sende-Empfangsvorrichtung (z. B. Beacon) fungieren und können vom Monitoring-System erfasst werden.

The signal transmitted or reflected in the service area is, as described, resumed by a secondary receiving device (eg monitoring system) or (transmitting) receiving device. For this purpose, different variants are proposed:

• Version 1:
  • Separate central monitoring system / receiving device that receives only the transmitted or reflected signals, and / or subsequently evaluates. For example, for ten primary transmitting devices (eg beacon) in corresponding light installations, a single monitoring system / a single receiving device is used. This one acts as a gateway to a central server.
• Variant 2:
  • As mentioned above, a secondary (transmitting) receiving device on a lighting device can once again in turn occur as a primary transmitting (receiving) device.
• Variant 3:
  • A primary transmitter is at the same time transmitter of the signal and receiver of the reflected signal.
• Variant 4:
  • Objects, e.g. As automobiles, may themselves act as a transceiver (eg, beacon) and may be detected by the monitoring system.

• Variante 1:
  • Innerhalb der Auswerteeinrichtung in/an als Teil der sekundären Sende-Empfangs-Einrichtung bzw. Empfangseinrichtung.
• Variante2:
  • Innerhalb der Auswerteinrichtung als Teil des elektronischen Vorschaltgeräts (ECG) der Lichtinstallation bzw. der Leuchte, in welcher die sekundäre (Sende-)Empfangs-Vorrichtung ggf. integriert ist.
• Variante 3:
  • Innerhalb einer zentralen Informationsverarbeitungs- bzw. Auswerteeinrichtung (z. B. ein zentraler Diensteserver) wird die Musteranalyse durchgeführt, wobei eine Kommunikationsverbindung zwischen der sekundären (Sende- ) Empfangseinrichtung mit dieser zentralen Instanz besteht.

The pattern analyzes for the identification of changes in the signal take place, for example, in an information processing device or an evaluation device. This can be realized in various ways:

• Version 1:
  • Within the evaluation device in / on as part of the secondary transceiving device or receiving device.
• Variant 2:
  • Within the evaluation device as part of the electronic ballast ( ECG ) of the light installation or the luminaire in which the secondary (transmitting) receiving device is possibly integrated.
• Variant 3:
  • Within a central information processing or evaluation device (eg a central service server), the pattern analysis is carried out, wherein a communication connection between the secondary (transmitting) receiving device with this central instance exists.

Within the evaluation device of the primary transmitting (receiving) device, the pattern analysis can also be performed. In this case, a communication network between the different transceiver devices to the bulbs is present, for. A mesh network.

In one embodiment, a (return) message of presence information is sent to the light installation / luminaire (eg to the electronic ballast ECG ) in order to visually distinguish free parking spaces from occupied parking spaces via the light installations / lights.

The transmitting devices on the bulbs can be mesh-capable transmitting (receiving) devices that can build together a meshed network, i. Each device may act as a network node connected to one or more other devices (primary and / or secondary) in the same installation area wirelessly and / or via the communication network of the light installations / luminaires. Within this meshed network, the information is passed from node to node.

In the event that a communication link exists between several installed light installations with integrated transceivers (eg via a mesh network between several installed transceivers or via an additional external network), a feedback of the presence information to the light installations can be used in order to show the user, in particular the driver of the motor vehicle, dynamically the way to an unoccupied parking space via the light installations (parking guidance system by means of lighting).

The following will be related to the 2 - 5 various concepts of lighting systems shown in detail.

According to the concept of 2 is from a primary transmitter SE (preferably with receiving functionality) on a lighting device LE (compare physical connection PV 1) a signal SW (eg electromagnetic wave) and from an object IF , if present, reflected or subdued in the considered service area. The reflected or damped signal RW is subsequently from a secondary receiving device EE , which may also have send functionality received.

The schematic representation of 2 also shows the above-mentioned variant 1 ( V1 ) and variant 3 ( V3 ), ie at which point of the overall system the pattern analysis MA for evaluating the received reflected signal RW respectively. In principle, the secondary (transmitting) receiving device EE in / on or as part of a light installation / luminaire or a luminous means, ie at the lighting device LE be accommodated or be provided as a separate system element, for example, exclusively as a receiving device. Version 1 ( V1 ) provides that the pattern analysis MA (eg fingerprinting) on an information processing unit IV in the secondary receiving device EE whereas variant 3 ( V3 ) an evaluation of the signals in a central infrastructure facility IS for services. This can be, for example, the Internet or a central service server. Furthermore, in the embodiment described here, a communication link KV4 is between the secondary receiving device EE and the infrastructure facility IS necessary.

The lighting system of 2 shows more details. In particular, the lighting device LE For example, an LED board LP , a ballast ECG and an energy interface IT on. Between the LED board LP and the ballast ECG there is a communication link KV5. In addition, it consists of the energy interface IT to the electronic ballast ECG a power transmission channel EK1 and the electronic ballast ECG to the LED board LP a power transmission channel EK2.

The transmitting device SE has an information processing device IV and also an energy interface IT , Both are connected to each other via a communication link KV6 and a power transmission channel EK3. Furthermore, there is between the energy connection point IT and the electronic ballast ECG the lighting device LE a power transmission channel EK 4.

The receiving device EE owns beside the information processing unit IV also an energy interface IT , Both components are in contact via a communication link KV7 and a power transmission channel EK5.

In addition, for the area to be monitored, in particular a parking lot, an occupancy indicator BZ be provided. With their help, the occupied parking spaces can be displayed. It stands here in a communication link KV8 with the infrastructure facility IS ,

Furthermore, a mains supply device NV provided, for example, provides an AC voltage of 230 V. It has, for example, a power transmission channel EK6 to the energy interface IT the lighting device LE , a power transmission channel EK7 to the infrastructure facility IS , a power transmission channel EK8 to the occupancy display BZ and a power transmission channel EK9 to the power interface IT the receiving device EE (List not final).

In connection with 3 Now another concept of a lighting system will be explained. Compared to the concept of 2 becomes that of the object IF (eg motor vehicle or road surface) reflected signal RW from a monitoring system MS receive. It can be a single monitoring system MS reflected signals from multiple primary transmitters SE receive. The evaluation, z. As the pattern analysis is done in this embodiment within the monitoring system MS , Between the monitoring system MS and the occupancy indicator BZ , which is also provided in the present example, there is a communication link KV9. Further, a power transmission channel EK10 from the power supply device NV to the monitoring system MS intended. With regard to the description of the remaining components and connections of this embodiment, reference is made to the description of 2 directed.

In the concept according to 4 is provided that both the primary-side transmitting device SE as well as the secondary receiving device EE Part of an overall composite of lighting equipment LE1 . LE2 with integrated transceiver facilities SE1 and SE2 are in a service area.

In a specific case, the transmitting device SE1 as a primary-side transmitting device and the transmitting device SE2 used as a secondary-side receiving device. Conversely, of course, the transmitting device SE2 for sending and the transmitting device SE1 serve to receive. In addition, the entire system has a communication network here KN between the individual participants SE1 and SE2 (If necessary, further transceiver devices) to the lighting devices LE1 . LE2 etc. on. Exemplary are in 4 Connection points "a" and "b" provided, which are each interconnected.

The communication network KN can be used wirelessly (eg BLE, WiFi, Zigbee, etc.). The network topologies "mesh" and / or "point-to-point" and / or "serial", ie BUS architecture, can be realized. This is how the transmitted signal is SW (eg electromagnetic wave) of the transceiver SE1 after reflection on the object IF from the other transceiver SE2 as a participant of the communication network KN receive. This transmits the received data z. B. over a mesh network as a communication network KN to a central information processing device ZI , This can be, for example, an infrastructure for services (eg Internet or central service server).

In the central information processing device ZI Here, for example, the evaluation takes place by means of pattern analysis MA , With regard to the remaining components and connections, turn to the description of 2 directed. Additionally is in 4 still variant 2 of the pattern analysis MA indicated in the lighting device LE1 respectively. LE2 and in particular in their electrical ballasts ECG can take place.

In 5 Another concept of a lighting system is indicated, in which the object IF reflected signal RW from a monitoring system MS Will be received. The monitoring system MS is in / on or as part of a luminaire / light installation or illuminant, ie on the lighting device LE2 arranged what the physical connection PV2 suggests. The monitoring system can do this MS reflected signals RW of several transceivers or transmitters SE receive.

The evaluation, z. As the pattern analysis is done in this embodiment within a central infrastructure IS for services (eg Internet or central service server). There is a communication link KV10 between the monitoring system MS and the central information processing device IS , This communication link KV10 is designed, for example, wireless or wired and can be connected via the communication connections of the light installation / lights, ie the lighting devices LE1 and LE2 respectively. As in the example of 4 may also have a power transmission channel EK11 from the power supply device NV to the energy interface IT the second lighting device LE2 be provided. Furthermore, a power transmission channel EK13 of the electronic ballast ECG the second lighting device LE2 to the monitoring system MS consist.

In addition, there is a power transmission channel EK11 between the power supply device NV and the energy interface IT the second lighting device LE2 and a power transmission channel EK12 between the power supply device NV and the central information processing device ZI (see. 4 ).

In connection with 6 The application of a lighting system described above for parking spaces will now be described. A parking lot PA has a large number of parking spaces PP , Some of these parking spaces are already by motor vehicle KF busy. The park area PA owns a driveway ZF and an exit AF , At the driveway ZF is a first lighting device LE1 including transmitting device SE1 provided by the transmitting device SE1 sent signal SW gets from the object IF , here a motor vehicle, reflected and reached as a reflected wave or as a reflected signal RW a receiving device EE1 , With this send-receive system SE1 . EE1 at the lighting device LE1 so can in the driveway ZF a retracting motor vehicle are registered.

An identical system with the components SE2 . EE2 and LE2 is at the exit AF provided to rally out motor vehicles. With such an overall system, for example, the occupancy of a parking area with respect to the number of parked motor vehicles can be monitored. If such systems are also distributed in the parking area, the exact positions of the parked motor vehicles may possibly be registered.

LIST OF REFERENCE NUMBERS

a

junction

AF

exit

b

junction

Bl, B2

Beacon

BE

lighting device

BZ

occupancy display

DS

Data Interface

DT

Data transfer system

DV

Data processing unit

e

terminal

ECG

ballast

EE, EE1, EE2

receiver

EK1 to EK13

Energy transmission channel

IT

Power interface

IS

infrastructure facility

IV

Information processing unit

KF

motor vehicle

KN

Communication network

KV1 to KV10

communication link

LE, LE1, LE2

lighting device

LP

LED board

M

module

MA

pattern analysis

MS

Monitoring system

NV

Power supply means

IF

object

PA

Parking area

PP

parking spot

PV1, PV2

physical connection

RW

reflected signal

SE

transmitting device

SE1, SE2

Transmit-receive means

SW

signal

V1

version 1

V3

Variant 3

ZF

driveway

ZI

Information processing device

Claims (15)

Lighting system with - a lighting device (LE) and - a transmitting device (SE), which is arranged in or directly on the lighting device (LE), for wireless transmission of a signal (SW) with a specific for the transmitting device identification information, characterized by - a receiving device (EE), which is in a fixed local relationship to the transmitting device (SE), for receiving an analysis signal (RW) caused by the signal (SW) and for generating a corresponding received signal, and - an evaluation device (IS) for evaluating the received signal in terms its signal strength. Lighting system after Claim 1 in which the receiving device (EE) also has a transmitting unit for transmitting a signal and / or the transmitting device (SE) also has a receiving unit for receiving a signal. Lighting system after Claim 1 or 2 , wherein the evaluation device (IS) is designed to perform a pattern analysis (MA) of the received signal to detect a predetermined object (OB). Lighting system after Claim 3 , wherein the evaluation device (IS) is designed to determine a number and / or position of detected objects. Lighting system according to one of the preceding claims, wherein between the transmitting device (SE) and the receiving device (EE) a particular meshed communication network (CN) is constructed. Lighting system after Claim 5 , wherein the evaluation device (IS) is connected to the communication network (KN) and the receiving device (EE) transmits the received signal via the communication network (KN) to the evaluation device (IS). Lighting system according to one of Claims 3 to 6 , wherein the evaluation device (IS) is designed to distinguish a static object from a dynamic object. Lighting system according to one of the preceding claims, which has at least one further transmitting device in addition to the transmitting device (SE), but the receiving device (EE) is the only device for receiving respective signals. Lighting system according to one of the preceding claims, wherein the evaluation device (IS) is part of a ballast (ECG) of the lighting device (LE). Lighting system according to one of Claims 5 to 9 , wherein the evaluation device (IS) is integrated into the transmission device (SE) and the reception signal can be transmitted via the communication network (KN) to the transmission device (SE). Lighting system according to one of the preceding claims, wherein the transmitting device (SE) and the receiving device (EE) are adapted to independently build a meshed network. Lighting system according to one of the preceding claims, wherein the analysis signal is a signal which has resulted from attenuation or reflection from the signal. Parking arrangement (PA) with a plurality of parking spaces (PP) and a lighting system according to one of the preceding claims, wherein with the evaluation device (IS) free parking spaces (PP) can be determined. Parking lot arrangement (PA) after Claim 13 wherein the lighting system comprises a plurality of lighting devices (LE) and a control device which is adapted to lead by means of the lighting devices (LE) to a free parking space (PP) or display it. Method for operating a lighting system with a lighting device (LE), a transmitting device (SE), which is arranged in or directly on the lighting device (LE), for wireless transmission of a signal (SW) with identification information specific to the transmitting device, characterized Receiving an analysis signal (RW) caused by the signal (SW) by a receiving device (EE) which has a fixed local relationship to the transmitting device (SE), - generating a corresponding received signal by the receiving device (EE) and - evaluating the received signal in terms of its signal strength by an evaluation (IS).

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