RU2776398C2 - Vehicle identification means - Google Patents

Abstract

FIELD: car industry.

SUBSTANCE: claimed invention relates to a vehicle identification means and serves for vehicle identification by means of unequivocal marking. At least one transceiver of short-range communication for short-range wireless communication with a data carrier and an antenna is coordinated with a license plate number body, wherein at least part of the antenna is located in a through hole, and the transceiver is made with the possibility of contactless reading.

EFFECT: invention proposes an improved vehicle identification means, which has simpler structural implementation, and which is less prone to interference impact.

23 cl, 7 dwg

Description

The invention relates to a means of identifying vehicles according to the restrictive part of paragraph 1, paragraph 7, and paragraph 12 of the claims.

The vehicle identification means claimed here serves to identify vehicles by means of a unique marking. Preferably, this marking contains a combination of numbers and/or digits (alphanumeric combination) or also other data uniquely associated with the vehicle. In order to uniquely assign the identification to the vehicle, the vehicle identification means is affixed, for example in the form of a so-called license plate plate, to the front and/or rear of the vehicle body or bumper. Alternatively, or also additionally, the vehicle identification means may also be attached or affixed to, for example, a window pane or a windshield. In addition, it is also possible that the vehicle identification means described herein serve as an additional license plate or "third license plate" in addition to the known number plate plates.

The most problematic is security in terms of counterfeit vehicle identification. Such means of identification are very often counterfeited, manipulated or removed from the vehicle in an unauthorized manner to be used on other vehicles. A measure to prevent this is to use vehicle identification means which include a contactless readable data carrier. For this purpose, this storage medium can store in memory all the data that is necessary for the unique identification of the vehicle. Thus, the data storage device may store, for example, alphabetic and numeric combinations of the license plate itself, information about the type of vehicle, as well as information about the registered owner of the vehicle.

Reading from a data carrier is usually carried out using a reader, which is not part of the vehicle. Such readers may be known transceivers which, depending on the wavelength range used, have different operating ranges. By comparing the read data with vehicle data, conclusions can be drawn about the commission of possible forgeries or manipulations. First of all, by comparing the data, it can be established whether the means of identification or the license plate has actually been assigned/assigned to the respective vehicle.

Previously known license plates with contactless readable data carriers include a separate antenna. This antenna (or also the antenna device) constituting the transceiver, together with the data carrier, is in most cases located on the metal body of the license plate. This arrangement of the antenna device on the body of the license plate, however, is associated with a significant interference susceptibility, especially when reading from the data carrier. This susceptibility to interference can only be avoided by a laborious and complex design of the vehicle identification means.

The invention is based on the task of creating an improved means of identifying a vehicle, which has a simpler design and is less susceptible to interference.

The vehicle identification tool for solving this problem is characterized by distinctive features according to claim 1 of the claims. The vehicle identification means, primarily the vehicle license plate, includes a license plate body that has at least one marking field with at least one marking. Associated with the body of the license plate is at least one non-contactly readable short range transceiver for short range wireless communication. This short range transceiver includes a data carrier and an antenna. The protective cover covers the body of the license plate along with the short range transceiver. In addition, the body of the license plate has one through hole, with which the antenna of the short-range transceiver is at least partially correlated. In this case, the antenna has a rectangular, or round, or circular surface, and the side edge of this surface along its length or the circumference of this surface along its diameter corresponds to the maximum length of the through hole. The through hole in the body of the license plate declared here can have almost any arbitrary shape. The preferred shape of the through hole is a rectangle, oval or circle, or any frame (framed hole). In the case of this through hole, it is a hole through the body of the license plate, which can also be referred to as a free space or opening. By associating the antenna with the through hole, the external electromagnetic field for data transmission and power supply communicates particularly efficiently and reliably with the short-range transceiver antenna. Due to this connection, it is possible to both read from the data carrier in the transceiver and write to it, as well as supply it with electricity, if we are talking about a passive structural element. According to the invention, it can be provided that the antenna completely or partially covers the through hole or does not cover it at all. If the short-range transceiver antenna does not cover the frame of the through hole, then the antenna must be placed so on the body of the license plate at a small distance from the frame, that is, only a few millimeters or centimeters, so that, despite the distance, there is still sufficient coupling between short range transceiver antenna and through hole framing.

The framing of the through hole defines the slot antenna, in other words, the license plate body with the through hole forms the slot antenna. The physical characteristics or properties of a slot antenna or through hole may be comparable to those of a dipole antenna.

The location of the data carrier in the through hole creates a particularly flat license plate structure. Due to the location of the data carrier inside, above or on the through hole, the data carrier or the transceiver as such, due to the protective coating, can practically not be perceived by an outside observer at all. This optical protection of the data carrier is a particularly advantageous solution, above all in cases where manipulation attempts are possible, since the data carrier or short-range transceiver is not immediately visible.

Preferably, the present invention may further provide that the data carrier and/or at least portions of the short-range communication transceiver antenna in the through hole are embedded in a non-conductive potting compound, in particular embedded in a synthetic material or resin, in particular that the through hole is filled with the casting compound. As a result of this embedding of the essential components of the short-range transceiver with the license plate body, the transceiver becomes an integral part of the vehicle identification means. Releasing the transceiver from the through hole forcibly destroys, at the very least, the antenna. In addition, the potting compound provides ideal protection for the electrical components, in particular the antenna and the data carrier, against environmental influences such as moisture, dirt, as well as cold and heat.

Another preferred embodiment of the present invention may provide that the windings of the antenna, inductive loop or coil, have a rectangular, or round, or circular surface, and the side edge of this surface along its length or the circumference of this surface along its diameter corresponds to the maximum length of the through hole , preferably less than it, and the height of the through hole corresponds to at least 10%, especially at least 25%, preferably at least 50%, of the width of this surface or the diameter of this surface. The relative dimensioning of the antenna and through hole is an important feature for the application case described here for communication with an external reader. The external reader generates a high frequency electromagnetic alternating field in the frequency range of 13.56 MHz to communicate with the short range transceiver antenna. This alternating field penetrates through the active surface of the antenna or coil, as well as through the through hole. As a result, an electromagnetic field voltage is induced in the antenna, which supplies the short-range transceiver as a passive integrated circuit with the necessary electrical energy. By at least partially superimposing the antenna on the through hole, the external electromagnetic field can communicate particularly well with the antenna. At the same time, it is essential that the active surface of the antenna or the surface, which is given by an inductive loop or coil, is at least one dimensional parameter parallel to the license plate body plane, that is, in the x or y direction, less than the through hole. Furthermore, it is preferable that the part of the antenna which is superimposed on the body of the license plate, i.e. does not fall into the through hole, is electrically or galvanically isolated from the body of the license plate.

It can also be provided according to the invention that the short-range transceiver, in particular the antenna, is located at any point of the through opening, wherein at least two opposite antenna partial regions are located above the through opening. Where the short-range transceiver is located along the slot does not play any role in establishing communication with the external electromagnetic field and, therefore, in the performance or power of the transceiver. The same applies also to the radiation characteristics of the transceiver. In this way, the short-range transceiver can be assigned in a particularly simple and universal way to the license plate body or identification means.

In addition, in the most preferred development of the invention, it is shown that the short-range transceiver with antenna and data carrier is located on a, preferably self-adhesive, substrate material directly on the front side of the body of the license plate, and at least partially above the through hole, and that over the transceiver short-range communication, a protective coating is applied to the body of the license plate. For reasons due to this layered structure, consisting of the body of the license plate, the substrate material, the short-range transceiver, as well as the protective cover, the identification means, on the one hand, can be read or send data without much interference, and on the other hand, it represents a particularly easy to implement system in terms of manufacture. In addition, this layered structure makes the short range transceiver an integral part of the license plate. The short range transceiver is built into the license plate.

Another preferred embodiment of the invention may provide that the short-range transceiver with antenna and data carrier is located on a, preferably self-adhesive, substrate material directly on the rear side of the license plate body, and at least partially above the through hole. Thanks to its position on the rear side, the transceiver is particularly effectively protected against manipulation attempts and environmental influences.

The vehicle identification tool for solving the above problem is characterized by distinctive features according to claim 7 of the claims. In accordance with this paragraph, it is provided that the short-range transceiver with antenna and data carrier is associated with the body of the license plate, located on the substrate material. At the same time, an electrically insulating layer is located between the self-adhesive substrate material of the short-range communication transceiver and the body of the license plate. This application of the short range transceiver together with the substrate material on the license plate body is a particularly simple and reliable method for equipping the vehicle identification means with a short range transceiver. By virtue of the substrate material with which the short-range transceiver is applied to the body of the license plate, sufficient decoupling or electromagnetic isolation from the body of the license plate can be carried out so that communication with the electromagnetic field for reading from the data carrier can be carried out in a reliable manner. In this case, it is also possible that the short-range transceiver is fixed directly or on a protective cover on the front side of the license plate body, preferably in a recess, and that a protective coating or protective film is applied over the short-range transceiver on the body of the license plate, and, above all, the transceiver short-range communication is filled in the recess with the casting mass. Due to this embedding, the transceiver is embedded in the identification means. It therefore forms an integral part of the identification tool and can only be removed from the vehicle identification tool if damaged or destroyed. Thus, this encapsulation provides not only increased protection against environmental influences, but also protection against mechanical influences or manipulation attempts.

It is also conceivable that the short-range transceiver is attached directly to the rear side, preferably in the recess, of the body of the license plate, the short-range transceiver being first of all embedded in the recess with a potting compound.

In addition, according to the invention, it can be provided that between the preferably self-adhesive substrate material of the short-range transceiver and the license plate body, a synthetic material or paint layer is located. This additional insulating layer serves to provide additional electrical isolation between the short range transceiver and the license plate body. The electromagnetic field to which the short-range transceiver is exposed is absorbed almost exclusively by the antenna of the short-range transceiver and, in addition to transmitting information, also serves to power the transceiver. The power supply of the transceiver, in which case it is usually a passive structural element, is essential for the emission of identification information in the form of electromagnetic waves. Since the range of the spectral band used in this case (13.56 MHz) is only a few centimeters, up to a decimeter, the electrical isolation of the short-range transceiver from the body of the license plate is especially important. Only by sufficient electrical isolation can it be ensured that sufficient energy is absorbed by the short-range transceiver to again emit the appropriate information from the transceiver.

Moreover, it can advantageously be provided that the short-range transceiver is located in an electrically non-conductive housing and that (this) housing is mounted directly on the license plate body. In the case of this housing, it may preferably be a housing made of synthetic material, resin or similar material. Non-conductive enclosures can be penetrated by electromagnetic alternating fields without significant attenuation or loss. At the same time, the electrical isolation of the short-range transceiver from the body of the license plate is sufficient to ensure the most efficient and reliable use of the vehicle identification means. In the case of this housing with a transceiver inside, it can also be a so-called "Hard Tag" device (radio frequency anti-theft hard tag).

The vehicle identification tool for solving the above problem is characterized by distinctive features according to claim 12 of the claims. In accordance with this paragraph, it is provided that the body of the license plate relating to the vehicle identification means includes a UHF antenna formed by a slot in the body, and that a data carrier generating a magnetic field is associated with this UHF antenna, and the transceiver antenna short-range communication, which is also associated with the body of the license plate, is associated with this slot, which in this case, as a slot used for the UHF antenna, equally acts as a through hole for the short-range transceiver in the above described manner. In this case, the short-range transceiver antenna is at least partially located in the slot or through hole or above the slot or through hole. Accordingly, it is possible to read or transmit from the vehicle identification means both in the UHF band and in the near range or high frequency band. Thanks to this combination of a data carrier with a UHF antenna and a short-range transceiver, both of which use the same slot or through hole for their application, a particularly simple construction of the vehicle identification means can be realized, which functions particularly reliably.

First of all, in a preferred development of the present invention, it is presented that the short-range transceiver, in particular with antenna and data carrier, is located in a recess in the body of the license plate. Due to this recess, the transceiver can be additionally embedded in the body of the license plate, which contributes to increased protection against environmental influences and mechanical damage.

Preferably, with regard to the vehicle identification means according to the invention, it can also be provided that the antenna of the short-range transceiver is completely located in the slot or through hole or above the slot or through hole, in particular on the front side or rear side of the license plate body.

Preferably, it is provided that the data carrier is connected to the slot by inductive coupling, wherein the data carrier includes a microcircuit, at least one electrically conductive coil connected to it, and a substrate of an insulating or non-conductive material, and the microcircuit is designed primarily as a passive RFID chip (RFID chip). This UHF waveband, also called UHF or microwave, is typically in the 0.3 GHz to 3 GHz range. Reading is carried out, as a rule, from a distance of several meters, but can also be carried out from smaller distances. Reading from one data carrier in one frequency range does not interfere with reading from another data carrier in another frequency range. Thus, different data from the same or different data carriers can be read out in several frequency bands independently of each other. This applies in particular to cases where several separate data carriers are provided, which preferably operate in different frequency bands. Most preferably, each of the frequency bands is given (-o) its own antenna or antenna arrangement and/or optimized (-o) for a separate reading.

A preferred development of the invention may include that the RFID chip is electrically isolated at one end of the slot and the short range transceiver is associated with the opposite end region of the slot, the slot preferably being extended by the length that the short range transceiver spans the slot. With this arrangement of both transceivers operating in different frequency bands, the slot can be used both as a through hole for a transceiver and as a slot antenna for an RFID chip. Due to this, thanks to one single through hole or slot, both a reliable and equally efficient RFID transceiver and a short-range transceiver are simply assigned to the body of the license plate. Preferably, it can be provided that the data carrier is located inside the slot or above the slot insulated, preferably the electrically conductive components of the data carrier are located at a distance from the delimiting surfaces of the slot. Due to the capacitive and/or inductive coupling of a data carrier or a slotted RFID chip, this can be used as an antenna. In this case, another antenna of the RFID chip, as well as a slot antenna, can be used as amplifying elements to provide increased power for transmitted or received signals.

Also, the present invention can provide that the data carrier is embedded in the body of the license plate, first of all fixed in the slot, preferably with at least one coating on the body of the license plate. Embedding the data carrier with a potting compound, such as synthetic material or resin, prevents the RFID chip or data carrier from being manipulated or exposed to the environment. By fixing the (data carrier) inside the slot, a vehicle identification means is obtained which, with the exception of the raised marking field and the raised edge area, has a smooth surface. If the license plate body is provided with a protective coating layer, it is not possible to recognize from the outside that the identification means includes a data carrier. This provides, above all, protection against manipulation and destruction of the data carrier.

It can also be provided that the at least one visible cover is primarily designed as a self-adhesive retro-reflective film, which is preferably designed in the area of the data carrier and/or slot and/or the short-range transceiver in such a way that it does not have electrically conductive components, first of all, that the coating has a very high ohmic resistance. This is, at least in the area of the slot, a demetallized coating applied to the license plate, over the slot, in such a way that the demetallized area at least partially coincides with the slot. As a result, a particularly efficient communication between the external electromagnetic field and the slot antenna can be carried out. Also due to this demetallization of the coating, especially of the reflective film, the establishment of communication with the antenna of the short-range transceiver, which at least partially covers the slot, can be improved.

First of all, the invention can provide that the data carrier is located in a receiving recess in the body of the license plate, and preferably, the receiving recess is associated with one end of the slot and preferably has a bottom wall into which one end of the slot extends, or the bottom wall has an opening , which is less than the storage medium. By inserting a data carrier or an RFID chip into the open recess, the data carrier can be integrated into the license plate body in a particularly secure manner.

It can also be provided according to the invention that the RFID chip and the short-range transceiver form one building block with two antennas for the HF and UHF frequency ranges, which are readable independently of each other. By incorporating the RFID chip and the short-range transceiver into a common body, the license plate can be equipped with electronic components in a particularly simple and cost-effective manner while minimizing space requirements. Since the frequency bands of the RFID chip and the short range transceiver do not overlap, there is no mutual interference when transmitting or receiving data. Moreover, it is possible that the RFID chip and the short-range communication transceiver share components such as, for example, a storage device or other communication channels.

Finally, it can be provided that the protective coating is made as a flexible, self-adhesive and reflective film, preferably with glass microbeads embedded or encapsulated in it, or as a prismatic film, and preferably at least one layer of the film contains metal particles that are electrically conductive, or that the protective coating is made of an electrically conductive material, in particular aluminum or sheet metal, or a non-conductive material, in particular synthetic material or acrylic.

An additional preferred embodiment of the present invention may provide that the body of the license plate is made of an electrically conductive material, in particular aluminum or sheet metal, or of a non-conductive material, a polymer, in particular a synthetic material such as acrylic, or that the body of the license plate is made as a flexible, self-adhesive and/or a reflective film, preferably with glass microbeads embedded or encapsulated therein, or as a prism film, wherein preferably at least one layer of the film contains metal particles that are electrically conductive.

Preferred embodiments of the invention are explained in more detail below based on the drawing. The drawing shows:

Fig. 1: means of identifying a vehicle according to the invention, with a through hole,

Fig. 2 is a sectional view of the vehicle identification means according to the invention according to FIG. 1, made in the area of the through hole and the data carrier,

Fig. 3: through hole performance with short range transceiver,

Fig. 4: another example of a through hole with a short range transceiver,

Fig. 5: means of identifying a vehicle according to the invention, with a short-range transceiver,

Fig. 6 is a sectional view of the short range transceiver according to FIG. 5, and

Fig. 7: means of identifying a vehicle according to the invention, with an RFID chip and a short range transceiver.

The vehicle identification means 10 according to the invention, or also the vehicle license plate, consists of a flat license plate body 11 with a front side 47 and a rear side 48, the license plate body 11 having a protective cover 12 (FIG. 1). In the case under consideration, we are talking essentially about examples of a rectangular structural design of the vehicle identification means 10 . In this case, almost any other geometric shapes of the body 11 of the license plate are also possible. This depends primarily on local, regional or national regulations, as well as relevant statutory or other regulations.

The vehicle identification means 10 shown in the figures has a marking field 13 which is assigned to the front side 47 of the identification means 10 . This marking field 13 is provided with a marking 14 which serves for identification. The marking 14 on the license plate 10 may be applied, for example, by printing, gluing, stamping or embossing. However, it is also possible that the marking 14 on the license plate 10 can be applied by a reproduction method or by a 3D printing method. Marking 14, as such, is not limited to the letters and numbers shown here. Moreover, it may contain any kind of marking and a combination of characters or the like, including graphics. In this case, first of all, at least the state registration number or (simply) the vehicle identification number is often applied to this place on the plate of the license plate.

In addition, the vehicle identification means 10 shown here has a perimeter border 15 which is embossed. In addition to the vehicle identification means 10 made of aluminum or sheet metal as shown here, it is also possible to manufacture the identification means or license plate body 11 from synthetic material or acrylic. Also, the use of the material is usually prescribed by national regulations.

Associated with the vehicle identification means 10 or the license plate body 11 in FIG. 1 is a rectangular through hole 16. This through hole 16 is provided as a recess or as a free space in the license plate body 11 and extends from the upper surface of the license plate body 11 to the underside or from the front side 47 to the rear side 48. In the case of the one shown in FIG. 1 through hole 16, the length 17 of the rectangular through hole 16 is greater than the height 18 of the through hole 16. In the example of the through hole 16 shown here, the length 17 is parallel to the side edge of the vehicle identification means 10. In this case, the length 17 or the through hole 16 can also have any exposure relative to the side edge of the vehicle identification means 10 .

Above the through hole 16 is a short-range transceiver 19, which includes an antenna 20, as well as a data carrier 21 or a microcircuit (chip). According to the invention, the short range transceiver 19 is exposed above the through hole 16 so that the antenna 20 extends at least partially over the through hole 16.

In the embodiment shown here, the short-range transceiver 19 with antenna 20 and data carrier 21 is located on a substrate material 22. This substrate material 22 is electrically insulating and may be at least partially self-adhesive on one or both sides. This substrate material 22, together with the short-range transceiver 19 according to FIG. are covered with a protective cover 12. This protective cover 12 can be a flexible, self-adhesive and/or reflective film, preferably with glass micro-beads embedded or encapsulated in it, or also a prismatic or PVC film, which serves as to reflect light. In addition, at least one layer of this protective coating 12 may contain metal particles that are electrically conductive. Due to the planar application of the substrate material 22 together with the short range transceiver 19 and the cover of the license plate body 11 with the protective cover 12, the presence of the short range transceiver 19 on the surface of the vehicle identification means 10 can only be guessed at. In addition, it can be provided that the through hole 16 is always filled with a (defined) material, the material serving to fix and protect the electronic components (transceiver, antenna, conductor, storage device).

Another design example not shown here may provide that the short-range transceiver 19 is associated with the rear side 48 of the body 11 of the license plate. In this case, the short range transceiver 19 should be mounted on the rear side 48 in the same way as previously described for the front side 47. With this setting, the short range transceiver 19 acquires an increased level of security, since the body 11 of the license plate serves as an additional shield against mechanical impacts.

In FIG. 3 and 4 show two possible embodiments of the through hole 16, 23 with a substrate material 22 or 24, with the substrate materials 22, 24 respectively associated with a short-range transceiver 19, 25 with various antenna devices 20, 26. Given that the antenna device 20 short-range transceiver 19 is made rectangular, the antenna device 26 of the short-range transceiver 25 describes a circle in shape.

In order for an external electromagnetic field to reliably and efficiently communicate with the short-range transceiver 19, 25, it is essential that the through hole 16, 23 is at least one dimension larger than the antenna 20, 26. Thus, for example, in the case 3, it is provided that the side edge 27 of the antenna 20 or antenna device 20 is less than the height 18 of the through hole 16. If so, the width 28 of the antenna or antenna device 20 may be greater than the height 18 of the through hole. holes 16. It is essential that at least one dimension of the antenna 20 is so smaller than the length 17 or the height 18 of the through hole 16 that the electromagnetic field can penetrate the through hole 16 or the antenna 20. Antennas 20, 26 of the transceiver 19, 25, 35 , 42 short-range communication, especially the windings of the antenna 20, 26, inductive loop or coil, has a rectangular or round or circular surface, moreover, the side edge 27 of this surface along its length or the circumference of this surface along its diameter 29 corresponds to the maximum length 17 of the through hole 16, 23 or less. The height 18 of the through hole 16, 23 corresponds to at least 10%, in particular at least 25%, preferably at least 50%, of the width 28 of this surface or the diameter 29 of this surface. In the shown in FIG. 1 and 2 in the embodiment of the vehicle identification means 10, effective communication of the electromagnetic field with the short-range transceiver 19 can only be carried out in the case of such penetration.

Similarly, the outer diameter 29 of the antenna 26 must be less than at least one dimension (length, height) of the through hole 23 (FIG. 4). How the antenna is ultimately performed is of secondary importance. Shown in FIG. 3 and 4, the antennas 20, 26 are made as inductive loops in the form of coils, which are connected, respectively, with one data carrier 30, 31, and also with one connecting link 32, 33. The data carrier 30, 31 can be located either also in the through hole 16 , 23, or on the body 11 of the license plate. According to the invention, it is also possible that the short-range transceiver 19, 25 is completely installed in the through hole 16, 23.

For primarily mechanical protection, but also for fixing, the short-range transceiver 19, 25 is at least partially filled in the through hole 16, 23 with a casting compound. Due to the fact that the short-range transceiver 19, 25, together with the substrate material 22, 24, is both located between the license plate body 11 and the protective cover 12, and is embedded in the through hole 16, 23, the short-range transceiver 19, 25 cannot be removed from the vehicle identification means 10 without destruction. Thus, thanks to a simple layered structure, a reliable functioning identification means with a high degree of protection against manipulation can be created.

Shown in FIG. 5, the design example of the vehicle identification means 34 is structurally identical to the previously described vehicle identification means 10, except that the vehicle identification means 34 shown in FIG. In the embodiment, the short range transceiver 35 is mounted on the front side 47 of the license plate body 36, and between the substrate material 37 of the short range transceiver 35 and the license plate body 36 is an electrically insulating layer 38 (see FIG. 6). This electrically insulating layer 38 can be designed as a layer of synthetic material adhesive on both sides or as a paint layer. In addition, the substrate material 37 of the short range transceiver 35 on the layer 38 is covered by a protective coating 39. This protective coating 39 is similar to the coating as previously described based on the embodiment of FIG. 1-4.

In the embodiment shown in FIGS. 5 and 6, the vehicle identification means 34, in particular the antenna 40 of the short-range transceiver 35, is electrically isolated by the layer 38 from the body 36 of the license plate. This proves to be an advantageous solution in particular when the license plate body 36 is made of metal. With this layered structure, the external electromagnetic field can also very reliably establish communication with the antenna 40 of the short-range transceiver 35 in order to both exchange data stored in the memory of the data carrier and supply sufficient power to the short-range transceiver, which is designed as a passive structural element. . In this embodiment, the short range transceiver 35, together with the substrate material 37, can be located almost anywhere on the body 36 of the license plate. In addition, it can be provided that the electrically insulating layer 38 is located only between the substrate material 37 and the license plate body 36 .

Another, not shown here, an example of constructive implementation may provide that the transceiver 35 short-range correlated with the rear side 48 of the body 36 of the license plate. In this case, the short-range transceiver 35 should be mounted on the back side 48 in the same way as previously described with respect to the front side 47. In addition, a through hole is associated with the short-range transceiver 35 located on the rear side 48 of the license plate body 36 in the above order. in the body of 36 license plate. With this alignment, the short range transceiver 35 acquires an increased level of security, since the license plate body 36 serves as an additional shield against mechanical impacts.

In the case of the embodiment of the vehicle identification means 41 shown in FIG. fig. 1-4, the slot 43 simultaneously serves as a slot antenna for the RFID chip 44. RFID chip 44 also includes a data carrier 45 that is inductively coupled via an additional current path or coil to slot antenna or slot 43. While RFID chip 44 is associated with one end of slot 43, short range transceiver 42 is in FIG. 7 at the other end of the oblong, preferably rectangular slot 43, namely on the front side 47 of the license plate body 11. The short range transceiver 42 is placed on the slot 43 such that just as a suitable external electromagnetic field can communicate with the short range transceiver 42, the power of the slot antenna or slot 43 is not degraded by the short range transceiver 42.

The RFID chip 44 can in this case be located in a bulge 46 at one end of the slot 43 or in a recess and be fixed in this bulge 46 or recess by a potting compound. In the case of this casting mass, it can be the same mass with which the short-range transceiver 42 is also embedded in the slot.

Otherwise, the vehicle identification means 41 is configured in the same manner as shown in FIG. 1 and 2 means 10 for identifying the vehicle. In addition, it should be noted that both the shape and dimensions of the identification means 10, 34, 41 of the vehicle, as well as through holes 16, 23 or slot 43 may deviate from those presented here.

Another design example not shown here may provide that the short-range transceiver 42 may be associated with the rear side 48 of the body 11 of the license plate. In this case, the short-range transceiver 42 must be mounted on the rear side 48 in the same way as previously described with respect to the front side 47. In addition, a through hole is associated with the short-range transceiver 42 located on the rear side 48 of the license plate body 11 in the above order. in the body of 11 license plate. With this alignment, the short range transceiver 42 acquires an increased level of security, since the license plate body 11 serves as an additional shield against mechanical impacts.

Another, not shown, embodiment of the vehicle identification means 10, 34, 41 according to the invention may provide that the short-range transceiver 19, 35, 42 is located in a recess in the license plate body 11, 36. In this case, the recess can be associated both with the front side 47 and with the rear side 48. Due to the placement of the short-range transceiver 19, 35, 42 in the recess, it is, on the one hand, protected from environmental influences, and on the other hand, almost completely cannot be perceived (from the outside) while under a protective coating and thus additionally protected from manipulation attempts.

LIST OF REFERENCES

10 vehicle identification tool

11 license plate body

12 protective coating

13 lettering field

14 marking

15 framing

16 through hole

17 length

18 height

19 short range transceiver

20 antenna

21 storage media

22 backing material

23 through hole

24 backing material

25 short range transceiver

26 antenna

27 side edge

28 width

29 diameter

30 storage medium

31 storage media

32 connecting link

33 connecting link

34 vehicle identification tool

35 short range transceiver

36 license plate body

37 backing material

38 layer

39 protective coating

40 antenna

41 means of vehicle identification

42 short range transceiver

43 gap

44 RFID chip

45 data carrier

46 broadening

47 front side

48 back side

Claims (23)

1. Means (10, 34, 41) for identifying a vehicle, primarily a vehicle license plate, having a body (11, 36) of the license plate, which has at least one marking field (13), and at least one marking ( 14), which is correlated with the marking field (13) of the body (11, 36) of the license plate, and at least one transceiver (19, 25, 35, 42) is associated with the body (11, 36) of the license plate. ) short-range communication for short-range wireless communication, having a data carrier (21, 30, 31) and an antenna (20, 26), and moreover, the license plate body (11, 36) is covered with a protective cover (12, 39), characterized in that that the body (11, 36) of the license plate has a through hole (16, 23), with which the antenna (20, 26) of the short-range transceiver (19, 25, 35, 42) is at least partially correlated, and the antenna (20 , 26) has a rectangular, or round, or circular surface, and the side to the edge (27) of this surface along its length or the circumference of this surface along its diameter (29) corresponds to the maximum length (17) of the through hole (16, 23). 2. Vehicle identification means (10, 34, 41) according to claim 1, characterized in that the data carrier (21, 30, 31) and/or at least sections of the antenna (20, 26) of the transceiver (19, 25, 35, 42) of short-range communication in the through hole (16, 23) are filled with a non-conductive potting compound, especially synthetic material or resin, especially that the through hole (16, 23) is filled with a potting compound. 3. Vehicle identification means (10, 34, 41) according to claim 1 or 2, characterized in that the windings of the antenna (20, 26), inductive loop or coil, have a rectangular, or round, or circular surface, and the lateral the edge (27) of this surface along its length or the circumference of this surface along its diameter (29) corresponds to the maximum length (17) of the through hole (16, 23), preferably less than it, and the height (18) of the through hole (16, 23) corresponds to at least 10%, especially at least 25%, preferably at least 50%, of the width (28) of this surface or the diameter (29) of this surface. 4. Vehicle identification means (10, 34, 41) according to one of the preceding claims, characterized in that the short-range transceiver (19, 25, 35, 42), primarily the antenna (20, 26), is located (a) in any place of the through hole (16, 23), with at least two opposite partial areas of the antenna (20, 26) located above the through hole (16, 23). 5. Vehicle identification means (10, 34, 41) according to one of the preceding claims, characterized in that the short-range transceiver (19, 25, 35, 42) with antenna (20, 26) and carrier (21, 30, 31 ) data is located on, preferably self-adhesive, substrate material (22, 24, 37) directly on the front side (47) of the license plate body (11, 36) and at least partially above the through hole (16, 23), and that over the short-range transceiver (19, 25, 35, 42) on the license plate body (11, 36) there is a protective coating (12, 39). 6. Vehicle identification means (10, 34, 41) according to one of the preceding claims, characterized in that the short-range transceiver (19, 25, 35, 42) with antenna (20, 26) and carrier (21, 30, 31 ) data is located on, preferably self-adhesive, backing material (22, 24, 37) directly on the rear side (48) of the license plate body (11, 36) and at least partially above the through hole (16, 23). 7. Vehicle identification means (10, 34, 41), primarily a vehicle license plate, having a license plate body (11, 36) that has at least one marking field (13) and at least one marking ( 14), which is correlated with the marking field (13) of the body (11, 36) of the license plate, and at least one transceiver (19, 25, 35, 42) is associated with the body (11, 36) of the license plate. ) short-range communication for short-range wireless communication, having a data carrier (21, 30, 31) and an antenna (20, 26), and moreover, the license plate body (11, 36) is covered with a protective cover (12, 39), characterized in that that the short-range transceiver (19, 25, 35, 42) with the antenna (20, 26) and the data carrier (21, 30, 31) on the substrate material (22, 24, 37) is associated with the body (11, 36) of the license plate , and between the self-adhesive substrate material (22, 24, 37) of the transceiver (19, 25, 35, 42) near connection and the body (11, 36) of the license plate is an electrically insulating layer (38). 8. The vehicle identification means (10, 34, 41) according to claim 7, characterized in that the short-range transceiver (19, 25, 35, 42) is fixed directly or on the protective cover (12, 39) on the front side. (47), preferably in a recess, of the body (11, 36) of the license plate, and that a protective coating (12, 39) is applied over the short-range transceiver (19, 25, 35, 42) on the body (11, 36) of the license plate, or the protective film, in particular the short-range transceiver (19, 25, 35, 42), is embedded in the recess (Z) with a casting compound. 9. Vehicle identification means (10, 34, 41) according to claim 7, characterized in that the short-range transceiver (19, 25, 35, 42) is fixed directly on the rear side (48), preferably in a recess, of the body (11 , 36) of the license plate, and, first of all, the short-range transceiver (19, 25, 35, 42) is filled in the recess with the casting mass. 10. Means (10, 34, 41) vehicle identification according to one of paragraphs. 7-9, characterized in that between the self-adhesive substrate material (22, 24, 37) of the short-range transceiver (19, 25, 35, 42) and the body (11, 36) of the license plate there is a synthetic material or a layer of paintwork. 11. Means (10, 34, 41) vehicle identification according to one of paragraphs. 7-10, characterized in that the short-range transceiver (19, 25, 35, 42) is located in a non-conductive housing, and that the housing is mounted directly on the license plate body (11, 36). 12. Vehicle identification means (10, 34, 41), primarily a vehicle license plate, having a license plate body (11, 36) that has at least one marking field (13) and at least one marking ( 14), which is correlated with the marking field (13) of the body (11, 36) of the license plate, and at least one transceiver (19, 25, 35, 42) is associated with the body (11, 36) of the license plate. ) short-range communication for short-range wireless communication, having a data carrier (21, 30, 31) and an antenna (20, 26), and moreover, the body (11, 36) of the license plate is covered with a protective cover (12, 39), primarily one of paragraphs. 1-11, characterized in that the body (11, 36) of the license plate includes a UHF antenna formed by a slot (43), and that a data carrier generating a magnetic field (45) is associated with this UHF antenna, and the antenna ( 20, 26) of the short-range transceiver (19, 25, 35, 42) is at least partially correlated with the slot (43), or the short-range transceiver (19, 25, 35, 42) with the antenna (20, 26) and the carrier (21, 30, 31) of data on the substrate material (22, 24, 37) is correlated with the body (11, 36) of the license plate, and the antenna (20, 26) of the transceiver (19, 25, 35, 42) of the short-range communication located at least partially in the slot (43) or through hole (16, 23) or above the slot (43) or through hole (16, 23). 13. Vehicle identification means (10, 34, 41) according to claim 12, characterized in that the short-range transceiver (19, 25, 35, 42), primarily with antenna (20, 26) and carrier (21, 30 , 31) data is located in a recess in the body (11, 36) of the license plate. 14. Vehicle identification means (10, 34, 41) according to one of the preceding claims, characterized in that the antenna (20, 26) of the short-range transceiver (19, 25, 35, 42) is completely located in the slot (43) or through hole (16, 23) or above a slot (43) or a through hole (16, 23), especially on the front side (47) or back side (48) of the license plate body (11, 36). 15. Means (10, 34, 41) vehicle identification according to one of paragraphs. 12-14, characterized in that the data carrier (45) is connected to the slot (43) by inductive coupling, and the data carrier (45) includes a microcircuit, at least one coil connected to it in an electrically conductive manner and a substrate made of insulating or non-conductive material, and the microcircuit is made, first of all, as a passive microcircuit (44) of the radio frequency identification system (RFID chip). 16. Means (10, 34, 41) vehicle identification according to one of paragraphs. 12-15, characterized in that the data carrier (45) is electrically isolated in the region of one end of the slot (43), and the short-range transceiver (19, 25, 35, 42) is correlated with the opposite end region of the slot (43), and the slot (43) is preferably extended by the length by which the short-range transceiver (19, 25, 35, 42) spans the slot (43). 17. Means (10, 34, 41) vehicle identification according to one of paragraphs. 12-16, characterized in that the data carrier (45) is located inside the slot (43) or above the slot (43) in isolation, preferably the electrically conductive components of the data carrier (45) are located away from the bounding surfaces of the slot (43). 18. Means (10, 34, 41) vehicle identification according to one of paragraphs. 12-17, characterized in that the data carrier (45) is embedded in the body (11, 36) of the license plate, primarily fixed in the slot (43), preferably with at least one coating on the body (11, 36) of the license plate. 19. Means (10, 34, 41) for identifying a vehicle according to one of the preceding claims, characterized in that at least one visible cover is made primarily as a self-adhesive reflective film, which is preferably in the area of the data carrier (45) and/or the slot (43) and/or the short-range transceiver (19, 25, 35, 42) is made so that it does not have electrically conductive components, first of all, that the coating has a very high ohmic resistance. 20. Means (10, 34, 41) vehicle identification according to one of paragraphs. 12-19, characterized in that the data carrier (45) is located in the receiving recess in the license plate body, and, preferably, the receiving recess is correlated with one end of the slot and preferably has a bottom wall into which one end of the slot (43) extends , or the bottom wall has an opening that is smaller than the data carrier (45). 21. Means (10, 34, 41) for identifying a vehicle according to claim 15, characterized in that the RFID chip and the short-range transceiver form one structural unit with two antennas for the HF and UHF frequency ranges, which are read independently of each other from friend. 22. Vehicle identification means (10, 34, 41) according to one of the preceding claims, characterized in that the protective coating (12, 39) is made as a flexible, self-adhesive and reflective film with, preferably, glass microbeads embedded or encapsulated in it or as a prismatic film, whereby at least one layer of the film preferably contains metal particles that are electrically conductive, or that the protective coating is made of an electrically conductive material, in particular aluminum or sheet metal, or a non-conductive material, in particular synthetic material or acrylic . 23. Means (10, 34, 41) for identifying a vehicle according to one of the preceding claims, characterized in that the body (11, 36) of the license plate is made of an electrically conductive material, primarily of aluminum or tin, or of a non-conductive material, primarily synthetic material or acrylic, or that the body of the license plate is made as a flexible, self-adhesive and/or reflective film with glass microbeads, preferably embedded or encapsulated in it, or as a prismatic film, and preferably at least one layer of the film contains metal particles that are electrically conductive.

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