Luminaire and lighting trunking system with RFID antenna

TECHNICAL FIELD OF THE INVENTION

The invention relates to a luminaire and lighting trunking system and lighting trunking system, preferably for indoor applications. The invention further relates to a method for operating the luminaire and lighting trunking system and lighting trunking system.

BACKGROUND OF THE INVENTION

Radio frequency identification (RFID) systems are currently the most widely used technology for tracking assets. The system is expensive on infrastructure but very cheap on tags.

RFID is used in different applications in order to provide unique identification codes related with a set of particular items. These items may comprise products in a store or pallets in a warehouse, persons in a race, pets, racehorses, farm animals, cars passing a tollbooth or entering a parking lot, etc .

Usually, singular RFID "tags" are attached to each item where each tag comprises a "chip" encoding digital identification data and an antenna that can communicate wirelessly to an RFID "reader." In some cases "passive" tags are used, where the power necessary to receive a query and transmit identification data back to the reader is also provided via the wireless connection.

In some cases use is made of "active" tags which incorporate batteries to provide a higher power signal that can be read from greater distances.

RFID systems have been implemented over a wide range of radio frequencies. Common embodiments exist using frequencies near 100 kHz, 10 MHz, and various UHF frequencies (100s of MHz to a few GHz) . The choice of the range of frequencies is dictated on the one hand by available radio bands not designated for other applications and on the other hand by the performance needs of particular applications.

Most of production, logistics and retails systems make use of such tags .

However, traditional RFID solutions are expensive for the infrastructure and implementation and do not match the expectations .

Thus, there is a need for an improved RFID system, using the luminaire and lighting trunking system and the lighting trunking system as location, power and data transmission points for RFDI signals.

SUMMARY OF THE INVENTION

The object of the present invention is achieved by the solution provided in the enclosed independent claims. Advantageous implementations of the present invention are further defined in the dependent claims.

According to a first aspect, the invention relates to a

luminaire and lighting trunking system, comprising a housing, at least one lighting module, a control unit controlling the operation of the lighting module, a RFID antenna integrated in the luminaire and lighting trunking system, as well as a RFID controller, designed to process signals reflected by objects in the detection area of the RFID antenna and detected by the RFID antenna as object presence or motion information, the processing not being the extraction of ID information of an RFID tag.

Therefore, the reflected RFID signals by all other objects under the antenna system, can be analyzed not only for RFID tags, but also for all other useful information, such as reflection from furniture and other building or decoration elements .

This provides the advantage that the presence of objects or people can be detected in an efficient way.

Moreover, additionally to the normal operation of the RFID system, the invention relates also to the analysis and usage of data derived from the reflected RFID signal not only from the RFID tags, but also reflected from all other objects under the radio propagation and reflection pattern. As such, the total information gain from the system is dramatically

increased and the method can be used to support various use case, as described below.

The lighting trunking systems are well known in the prior art and they are provided by different providers. For example, LED linear trunking systems are continuous -row lighting assemblies that utilize trunking rails in order to integrate individual lighting fixtures which may include LED light modules, power supplies, lighting controls, and emergency battery packs. The flexible trunking systems can be configured in different ways in order to meet challenging demands for interior lighting in commercial and industrial buildings. In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the presence or motion information is communicated over a wireless or wire- bound interface of the luminaire and lighting trunking system.

This provides the advantage that the communication process of the presence of motion is faster and more efficient.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the presence or motion information is used by the control unit for the control of the operation of the lighting module such that at least one lighting characteristic, such as e.g. the intensity of the light produced by the lighting module is a function of the presence or motion information.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the RFID controller is a controller separate to the control unit controlling the operation of the lighting module.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the RFID controller is additionally designed to process signals

detected by the RFID antenna in order to extract an RF ID sent from a RFID tag.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the RFID antenna is integrated in the housing of the luminaire and lighting trunking system.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the luminaire and lighting trunking system is a LED luminaire and lighting trunking system.

In an implementation for of the luminaire and lighting

trunking system according to the first aspect, the lighting module comprises a LED-driver.

According to a second aspect, the invention relates to a method for operating a luminaire and lighting trunking system, comprising controlling an operation of a lighting module in response to non- ID information of RFID signals emitted by a RFID controller of a luminaire and lighting trunking system and reflected by objects.

According to a third aspect, the invention relates to the use of non- ID information of RFID signals emitted by a RFID controller of a luminaire and lighting trunking system and reflected by objects for controlling at least one light output characteristic of the luminaire and lighting trunking system.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in the followings together with the figures.

Fig. 1 shows a luminaire and lighting trunking system according to an embodiment;

Fig. 2 shows an RFID system according to an embodiment;

Fig. 3 shows an RFID antenna system according to an embodiment ;

Fig. 4 shows an antenna system comprising a luminaire and lighting trunking system according to an embodiment; and

Fig. 5 shows a method for operating a luminaire and lighting trunking system according to an embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Aspects of the present invention are described herein in the context of a luminaire and lighting trunking system.

The present invention is described more fully hereinafter with reference to the accompanying drawings, in which various aspects of the present invention are shown. This invention however may be embodied in many different forms and should not be construed as limited to the various aspects of the present invention presented through this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. The various aspects of the present invention illustrated in the drawings may not be drawn to scale. Rather, the dimensions of the various features may be expanded or reduced for clarity. In addition, some of the drawings may be simplified for clarity. Thus, the drawings may not depict all of the components of a given apparatus.

Various aspects of a luminaire and lighting trunking system will be presented. However, as those skilled in the art will readily appreciate, these aspects may be extended to aspects of luminaire and lighting trunking systems without departing from the invention.

The term "LED luminaire and lighting trunking system" shall mean a luminaire and lighting trunking system with a light source comprising one or more LEDs. LEDs are well-known in the art, and therefore, will only briefly be discussed to provide a complete description of the invention.

It is further understood that the aspect of the present invention might contain integrated circuits that are readily manufacturable using conventional semiconductor technologies, such as complementary metal-oxide semiconductor technology, short "CMOS". In addition, the aspects of the present invention may be implemented with other manufacturing processes for making optical as well as electrical devices. Reference will now be made in detail to implementations of the exemplary aspects as illustrated in the accompanying drawings. The same references signs will be used throughout the drawings and the following detailed descriptions to refer to the same or like parts.

Fig. 1 shows a luminaire and lighting trunking system 100 according to an embodiment .

The luminaire and lighting trunking system 100, comprises a housing 101, at least one lighting module 102, a control unit 103 controlling the operation of the lighting module 102, a RFID antenna 104 integrated in the luminaire and lighting trunking system, as well as a RFID controller 105, designed to process signals reflected by objects or human beings 106 in the detection area of the RFID antenna and detected by the RFID antenna 104 as object presence or motion information, the processing not being the extraction of ID information of an RFID tag.

The luminaire and lighting trunking system 100 can be a LED luminaire and lighting trunking system. Advantageously, the RFID antennas are integrated within the luminaire and lighting trunking systems 100 allowing better output power and sensitivity.

The data or signals can be carried over the luminaire and lighting trunking system data network.

Fig. 2 shows an RFID system according to an embodiment.

In this embodiment, in step 1, the RFID emits a UHF signal, via the antenna system, which UHF signal is reflected by an object 106, such as a human, without RFID tag.

In step 2, the object reflects part of the signal back to the reader .

In step 3, the antenna system captures the reflected signal and the RFID gate extracts from the signal motion, area topography and/or presence information, which information is obtained additionally to the ID modulated by the tag into the reflected signal, and sends the received data for further processing .

However, the ID information may be extracted in addition to the motion and/or presence information. According to the invention at least the non-ID content of the reflected signal is evaluated.

The motion/presence information can be used for sending it out over a wireless or wire-bound link. Alternatively or additionally it can be used to control the light output of the lighting module 102 of the luminaire and lighting trunking system 100, detect changes in topography, detect people movement and others . Fig. 3 shows an RFID antenna system according to an embodiment .

Similarly to Fig. 2, in this case as well the RFID antenna system can send a UHF signal to an object 106. Then, the antenna system can detect the reflected signal and the RFID reader can interpret the signal and, finally, send the received data for further processing to a RFID system.

Fig. 4 shows an antenna system integrated in the housing of a luminaire and lighting trunking system 100 according to the invention.

The luminaire and lighting trunking system 100 can comprise the RFID controller 105 which can be designed to process signals reflected by objects or human beings 106 in the

detection area of the RFID antenna and detected by the RFID antenna 104 as object presence or motion information, the processing not being the extraction of ID information of an RFID tag.

The RFID antenna 104 can be integrated in the housing 101 of the luminaire and lighting trunking system 100.

Fig.5 shows a method 500 for operating a luminaire and lighting trunking system 100 according to an embodiment.

In this embodiment, the RFID antenna system is used as an UHF radar. In particular, the UHF can be used as a radar scanner, since the reflected signal can be analyzed for topography information and change to previous state.

The method 500 comprises the following step:

- controlling 501 an operation of a lighting module 102 in response to non- ID information of RFID signals emitted by a RFID controller 105 of a luminaire and lighting trunking system 100 and reflected by objects.

All features of all embodiments described, shown and/or claimed herein can be combined with each other.

While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only and not limitation. Numerous changes to the disclosed embodiments can be made in accordance with the disclosure herein without departing from the spirit of scope of the invention. Thus, the breadth and scope of the present invention should not be limited by any of the above- described embodiments. Rather, the scope of the invention should be defined in accordance with the following claims and their equivalence .

Although the invention has been illustrated and described with respect to one or more implementations, equivalent alternations and modifications will occur to those skilled in the art upon the reading of the understanding of the specification and the annexed drawings. In addition, while a particular feature of the invention may have been disclosed with respect to only of the several implementations, such features may be combined with one or more other features of the other implementations as may be desired and advantage for any given or particular application.