• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a system for determining the position of a mobile communication device (30) in a room (40), wherein the room (40) is illuminated by means of at least one luminaire (10), comprising a mobile communication device (30), wherein the mobile communication device (30 ) comprises means for transmitting an acoustic signal and means for wireless communication (31), and the system comprises at least two receiving means (11) for receiving the acoustic signal, the receiving means (11) on the at least one lamp (10) and are arranged at a distance from one another, and evaluation means (20) for determining position information, and the evaluation means (20) determines the position information for the mobile communication device (30) from the received acoustic signal.
    公开号:AT15963U1
    申请号:TGM321/2015U
    申请日:2015-11-05
    公开日:2018-10-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    INTERIOR NAVIGATION BY SOUND
    The invention relates to a system for navigation in the interior by means of sound waves. In particular, the invention relates to a lighting system with integrated, spatially distributed microphones and an associated evaluation. Sound waves emitted by a mobile communication device are received, evaluated and position information for the mobile communication device is determined.
    The location determination, ie the determination of a location in relation to a defined reference point (fixed point) is a basis for many applications. Location determination in the strict sense is to be defined as the determination of one's own location in relation to the reference point in a reference system. The determination of one's own location is a prerequisite for navigation, which determines a route to a destination point from its own location.
    An application for a navigation method within a closed space, for example, the targeted leadership of a customer through a shop. Furthermore, in the context of marketing applications on personal electronic devices, customers can be presented with an advertisement based on the current location.
    It is known in principle to determine the location of a person within a building by means of electronic systems.
    A radio-based proposal for navigation within closed rooms is based on the "standard Bluertooth Low Energy" (BLE). For this purpose, transmitters (beacons) are arranged as signal transmitters within a room, each with a transmission signal with one respective An electronic device, for example a mobile phone with a suitable additional program (smart phone), can, for example by means of trilateration, convert the received signals of at least three transmitters into the position of the receiving electronic device in two-dimensional space determine.
    The disadvantage is that both the transmitter-side infrastructure, so appropriate transmitter, and a Bluetooth-enabled mobile device with a corresponding installed additional program are necessary.
    Another known system utilizes visible light communication (VLC) data transmission technology for position determination. A suitably equipped lighting system generates location-specific light pulses in addition to ordinary light. The camera of an electronic communication device, such as a mobile phone with a suitable additional program detects the location-specific light pulses and evaluates them. The additional program is designed to display the instantaneous location of the electronic communication device, for example on a building plan, by accessing a known location dependency of the light pulses. Prerequisite for use is the equipment of the mobile communication device with a camera. In addition, a complete equipment of the room with VLC-capable lighting, so considerable equipment costs and installation effort is required.
    Based on the prior art presented at the outset, the invention is dedicated to the technical task of enabling the determination of position for individual users within a room while avoiding the disadvantages mentioned.
    This object is achieved by the features of independent claim 1 and by the features of the independent claims 9 and 12. Advantageous developments of the invention are defined in the dependent claims.
    A system for determining the position of a mobile communication device in a space illuminated by at least one luminaire comprises a mobile communication device, wherein the mobile communication device comprises means for transmitting an acoustic signal and means for wireless communication. According to the invention, the system is characterized in that it comprises at least two receiving means for receiving the acoustic signal, the receiving means being arranged on the at least one luminaire or distributed over a plurality of luminaires and at a distance from one another. Furthermore, the system comprises evaluation means for determining position information, wherein the evaluation means determines the position information for the mobile communication device from the received acoustic signal.
    The solution according to the invention is advantageous since an already existing in the room lighting infrastructure can be equipped only with little effort by retrofitting with acoustic receiving means and a suitable evaluation for the determination of the position information. Acoustic receivers (microphones) are small and inexpensive and unlike VLC, no intervention in the control of the lamps is required. The existing with any mobile, personal communication device function of sending acoustic signals also allows the realization of a position determination with little additional effort, which usually includes only an additional application program for the control of the mobile communication device.
    According to a preferred embodiment of the system for determining the position of the receiving means is designed to receive the acoustic signal in a non-audible frequency range, in particular in the ultrasonic range.
    According to an advantageous embodiment, the system for determining the position comprises the mobile communication device designed to transmit the acoustic signal with an identification information of the mobile communication device.
    The mobile communication device according to a further embodiment of the invention is arranged, the acoustic signal comprising application information e.g. to send the navigation destination to be reached.
    It is advantageous if the mobile communication device is set up to start an application based on a user input.
    A position determining system of another embodiment of the invention comprises a mobile communication device, wherein the wireless communication means is adapted to receive a signal based on the position information, and the application evaluates the received signal.
    The application may, for example, accept the data received via the conventional means for wireless communication, which are generated and transmitted on the basis of the position information determined according to the invention, an application for the user such as navigation in the room to certain areas of interest. By way of example, a user can be guided via his mobile communication device to specific promotions in a shop.
    According to a further advantageous embodiment of the system for position determination, the evaluation means is adapted to determine the position information by subtraction of the received acoustic signal.
    A preferred system for position determination comprises the evaluation means, which is adapted to determine the position information by evaluating a transit time difference and / or acoustic signal level from the received acoustic signal at the locations of the receiving means.
    The technical object is achieved by a luminaire for use in a system for determining the position of a mobile communication device in a room, wherein the space is illuminated by means of the lamp. The lamp according to the invention comprises at least one receiving means for receiving an acoustic signal of the mobile communication device, and a transmission means for transmitting the received acoustic signal as an electrical signal to an evaluation means suitable for determining a position information of the mobile communication device from the received acoustic signal.
    According to an advantageous embodiment, the lamp itself comprises the evaluation means.
    A further embodiment of the luminaire is characterized in that the transmission means is adapted to receive a received acoustic signal transmitted by at least one further luminaire.
    The problem is further solved by a mobile communication device for use in a system for determining position within a room. For this purpose, the mobile communication device comprises a means for transmitting an acoustic signal, a means for wireless communication, and a control means. The mobile communication device is characterized in that the control means is arranged to control the means for transmitting an acoustic signal such that the means for transmitting an acoustic signal sends an acoustic signal with identification information of the mobile communication device.
    The invention will be explained in more detail with reference to embodiments and figures. 1 shows a schematic representation of the structure of an illumination system according to the invention, [0026] FIG. 2 shows a schematic illustration of the position determination by means of acoustic signals, and [0027] FIG. 3 shows a schematic illustration of a space that is provided with a system according to the invention Is provided.
    In the figures, like reference numerals designate the same or corresponding elements. For the sake of illustration, a repetition is largely dispensed with in the following description of advantageous embodiments.
    Figure 1 shows a general structure of an inventively designed lighting system 1. It is assumed in the example shown that the system comprises lamps arranged in a room 10. The lighting system 1 according to the invention is designed for position determination within a room, but can also be extended to a larger system that extends over several rooms or entire buildings or building complexes. It is also possible that areas outside of buildings, such as open spaces, parking areas, amusement parks, etc. are equipped with an inventively designed lighting system 1.
    Furthermore, it is assumed for simplicity in the present case that all the lights 10 are equipped with receiving means 11 for detecting acoustic signals, which is not mandatory for all lights 10 is required. In a further embodiment of the illumination system 1 according to the invention, only one luminaire 10 of a room is equipped with receiving means 11 which can form a microphone array within a luminaire housing of the luminaire 11.
    In addition to the at least one receiving means 11, the luminaire 10 according to the invention comprises at least one luminous means 12 and according to one embodiment also a transmission means 13.
    The transmission means 13 is adapted to receive the converted from the receiving means 11 in an electrical received signal received acoustic signal and convert it into a transmission signal for transmission to an evaluation means 20.
    The evaluation means 20 is centrally in the embodiment shown in Figure 1, that is arranged spatially separated from the lights 10. The received acoustic signal, for example, converted into an electrical signal and transmitted with a time information about the reception time supplemented to the evaluation means 20. By means of the time information, the evaluation means 20 can determine an incident direction of the acoustic signal from a plurality of acoustic signals originating from different receiving means 11.
    Likewise, according to the invention, the evaluation means 20 may be formed as part of the lamp 10. This is particularly preferred when a single luminaire 10 already has a microphone array with a plurality of microphones as receiving means 11. With the received acoustic signal converted into electrical signals as an input variable, the evaluation means 20 can determine an incident direction of the acoustic signal. The transmission means 13 can then be designed to transmit in a data signal a determined direction of incidence and distance relative to the luminaire 10 for the acoustic signal to a central processing.
    Further, the transmission means 13 may be arranged to realize a bidirectional communication with other lights 10 and their respective transmission means 13. This is particularly advantageous when the evaluation means 20 is designed as part of the lamp 10. In this case, the transmission means 13, for example, receive a respective direction of incidence of the acoustic signal for other lights 10 and output to the evaluation means 20 for determining a position information of the mobile communication device 30.
    The transmission means 13 may be, for example, a communication standard unit for communication with lighting components when providing the capability for data transmission. The transmission means 13 can be realized, for example, as part of a communication-capable operating device of the luminaire 10.
    The evaluation means 20 according to the invention is designed to determine a position information from the converted into electrical received signals received acoustic signals of the receiving means 11. The position information describes the spatial position of a mobile communication device 30 in the space 40. The evaluation means 20 can determine the position information, for example, by an evaluation of the respective received acoustic signals to the individual lights 10 by triangulation. In this case, in the determination of the position of the mobile communication device 30 in the space 40, a previously known distribution of the lights 10 or the detection means 11 in the space 40 and the respective angles of incidence of the acoustic signal to the receiving means 11 a.
    The evaluation means 20 can also be implemented as part of the additional program on the mobile communication device 30, for example in the form of a corresponding software module. The controller 32 then executes the additional program with the corresponding software module. For this purpose, the necessary data on the received acoustic signals are transmitted via the wireless communication link to the mobile communication device 30. The software module of the additional program for position determination on the mobile communication device 30 determines the position information from these data via the received acoustic signal and forwards this data to the additional program.
    Figure 1 shows the lighting system 1, which is formed of two arranged on a ceiling of the space 40 lights 10. The lights 10 each have at least one light source 12 and an internal control unit, not shown, for driving the light bulbs 12. Furthermore, each lamp 10 is provided with receiving means 11 for detecting acoustic signals, which are formed in the present case by microphones 11.
    The lights 10 may be connected to a common bus system, the exact topology of the bus system and the type of data transmission for the present invention is irrelevant. In particular, it would also be conceivable that the bus system is formed by the lines of the general power supply, in which case a communication by means of the so-called. Carrier frequency technology (English Powerline Communication) takes place. Likewise, a wireless communication of the lights 10 with each other and / or with the evaluation means 20 is conceivable.
    One way of wireless communication would be, for example, again to use acoustic signals (preferably inaudible area). For this purpose, one or more of the lights or a central unit could be equipped with means for transmitting acoustic signals, which can then be received and interpreted by those lights which are equipped via corresponding receiving means.
    In this case, the receiving means infrastructure can be used particularly effectively both for position determination and as a communication channel.
    However, it is advantageous if the data transmission that takes place via the bus system or, in general, the communication system also enables the transmission of acoustic signals. Further not shown in Figure 1 components of the lighting system 1 are finally at least one commander, which is responsible for the control of the lights 10. Of course, however, other local commanders could be integrated into the lighting system 1. In particular, the use of brightness sensors, presence sensors and / or local operating devices in the context of the lighting system 1 is conceivable.
    The transmission of the acoustic signals corresponding electrical signals via the communication system is particularly necessary if a detailed evaluation at a central location, in the present case in the central evaluation means 20, to be performed. Alternatively, the lights 10 and the receiving means 11 for receiving acoustic signals may each themselves have corresponding evaluation means, which then each themselves evaluate the received acoustic signals with respect to a position of their origin at the individual receiving means 11 and e.g. determine the position information from a plurality of signal arrival directions at least two, but in particular three receiving means 11. About the communication system then only the evaluated position information in corresponding data signals are to be transmitted.
    Preferably, it is provided that the corresponding receiving means 11 for detecting the acoustic signals to convert these received acoustic signals into electrical signals, pass on the communication system to the evaluation unit 20. The evaluation unit 20 then carries out an evaluation of the electrical signals and generates the position information for the mobile communication device 30 on the basis of this evaluation.
    FIG. 2 shows the basic principle of determining an incident direction of an acoustic signal on a microphone arrangement 50. The microphone arrangement 50 shown comprises four microphones 50.1, 50.2, 50.3 and 50.4, which are arranged at a distance from one another. For a spatial point cn 51, the angles on, βn and yn are to be determined by evaluating a transit time difference for an acoustic signal or an acoustic signal level difference for the acoustic signal. In turn, the angles on, βn and yn determine the direction of incidence 52 of the acoustic signal for the spatial point cn 51 in the xn-yn-zn coordinate system.
    The frequency range in which the acoustic signal is sent can be arbitrary. The frequency of the acoustic signal may be in a human audible (audible) or non-audible frequency range. The frequency of the transmitted acoustic signal is preferably selected in the inaudible frequency range, in particular in the ultrasonic frequency range above 16 kHz, for example above 20 kHz.
    Sound transducers are devices that convert acoustic signals as sound pressure and electrical signals, usually electrical voltages into each other.
    As a means for transmitting the acoustic signal, a loudspeaker (sound generator) can be used. For example, dynamic or electrostatic speakers or piezo speakers can be used. In particular, Piezolausprecher, so membrane-coupled
    Pieces of piezoelectric ceramic, which are excited to oscillate using the reverse piezoelectric effect or directly driven membranes of piezoelectric plastics can be used for the production of ultrasound.
    As a receiving means 11 for the reception of acoustic signals sound receiver) is a microphone used. In principle, sound receivers operate on the same principle as sound generators, that is to say in the present case the means for generating the acoustic signals 34.
    The evaluation unit 20 may be configured to forward the determined position information of the mobile communication device 30 with an individual identification of the mobile communication device 30 to a data processing device 21 (server).
    The data processing device 21 of an embodiment uses the position information in conjunction with the identification information of the mobile communication device 30 to generate navigation information and to transmit to the mobile communication device 30.
    The data processing device 21 of another embodiment uses the position information in connection with the identification information of the mobile communication device 30 to transmit e.g. to generate a targeted advertising information and to transmit to the mobile communication device 30. The generated targeted advertising information can be generated based on and taking into account further data to which the data processing device 21 has access and are linked to the identification information of the mobile communication device 30.
    For the transmission of the navigation information and / or the targeted advertising information to the mobile communication device 30, according to a preferred embodiment of the invention, for example, a local wireless network (WLAN), a personal wireless network (English: Wireless Personal Area Network) such as Bluetooth ™ and / or a cellular mobile network, for example, according to one of the standards GSM, Edge, UMTS, LTE, and / or a visible light communication (VLC) or an alternative method (eg acoustically, such as described above) can be used. According to the invention, a central communication unit 22, which can perform wireless communication with a transmitting / receiving unit of the mobile communication device 30, is used for the transmission thereto.
    The position determination system according to the invention uses an acoustic signal to determine the position information.
    According to the invention, a mobile communication device 30 transmits the acoustic signal. The mobile communication device 30 may be, for example, a mobile device or a portable computer. Preferably, a mobile device (English: Smartphone) with extended functionality in terms of connectivity and the use of additional or application programs (English Apps) or a portable computer with touch-sensitive screen (English tablet) is used as a mobile communication device 30.
    The mobile communication device 30 has a communication unit 31 for wireless communication with the central communication unit 22. The wireless communication can be performed, for example via an antenna or a camera as a receiving means. Furthermore, the inventive mobile communication device 30 further input / output means 33, which realize a user interface to a user of the mobile communication device 30. The further input / output means 33 may comprise, for example, a screen, a touch-sensitive screen, a tactile surface, function keys, keyboard, microphone, ...
    In Figure 1, a means 34 for transmitting an acoustic signal is shown as essential to the invention part of the mobile communication device 30. The means 34 for transmitting an acoustic signal is for example a loudspeaker of the mobile communication device 30. The means 34 for transmitting an acoustic signal is suitable for emitting acoustic signals in the audible range and in a non-audible range of an acoustic frequency spectrum. The term "audible" refers to the audible range of hearing by frequency and level of sound that human hearing can perceive.
    The functions of the mobile communication device 30 are controlled by a control means 32. The control means 32 may comprise a microprocessor. The control means 32 may be configured to execute application programs. In particular, the control means 32 can execute an application program for determining the position with the aid of the mobile communication device 30 within the space 40 in the illumination system 1 designed according to the invention.
    In particular, the control means 32 may control the loudspeaker 34 so that the loudspeaker 34 sends an audible signal. The acoustic signal transmits according to the invention at least one identification information that uniquely identifies the mobile communication device 30 and / or its user.
    The acoustic signal of one embodiment comprises an identification section. The acoustic signal of a further exemplary embodiment comprises, in addition to the identification section, a payload section in which further device-specific and / or user-specific information (data) can be transmitted. Thus, e.g. be specified after a user input a product, so that a navigation from the location of the mobile device can be made to the product.
    FIG. 3 shows an application of the illumination system 1 according to the invention on the basis of a schematic overview. The finding of goods on spacious shopping areas, for example, on shelves of large supermarkets, is often very confusing due to a high variety of goods. The finding of the aisle and the shelf in the room can be substantially improved by using the lighting system 1 according to the invention. This provides an improved shopping experience for a customer and also reduces staff time required for, for example, customer questions on product locations.
    FIG. 3 shows a room 40 of a shop in a schematic plan view. The room is equipped with a plurality of shelves 41. Between the shelves 41 are traffic areas that are available to a customer for movement. The space is illuminated by a plurality of lights 10, 42, wherein in addition to conventional lights 42 also inventively designed lights 10 are distributed at acoustically favorable points in the room. 3, neither supply lines of a basic installation nor communication lines, in particular connections between the components of the illumination system 1 according to the invention, for example the lights 10, each having an acoustic receiving means 11, the communication means 22, for example by a WLAN base station ( English WLAN access point) can be realized shown. Also not shown in FIG. 3 is the central data processing unit 21.
    A user with a mobile communication device 30 is located at a current location 44 in the entrance area of the room 40. Via the communication means 22, for example, an additional program for carrying out the inventive navigation within the room 40 to the mobile communication device 30 are loaded. For loading the application program, the wireless communication link between the communication means 22 and the communication means 31 can be used.
    It is also possible that the application program is loaded onto the mobile communication device via a wired or other communication link. Likewise, the application program can be made available to a user in advance via a website of the shop.
    The control means 32 now executes the additional program. In this case, the control means 32 controls the means for transmitting an acoustic signal 34. The means for transmitting an acoustic signal 34 emits according to the invention the acoustic signal, which comprises identification information of the mobile communication device 30. Thus, the acoustic signal of the mobile communication device 30 becomes distinguishable from acoustic signals of other mobile communication devices 30 within the space 40.
    The inventive system of the embodiment shown in Figure 3 has three groups of receiving means 11 for receiving the acoustic signal in each case a lamp 10. Each lamp 10 of the illustrated system may also have an evaluation means 20. The acoustic signal is received at each lamp 10 and the evaluation means 20 can, for example, by determining transit time differences of the acoustic signal to the individual receiving means 11 a group of receiving means 11, a position of the origin or at least one incident direction 48.1, 48.2, 48.3 of the acoustic signal each of the lights 10 of the invention determine. Each lamp 10 may be further configured to transmit the direction of incidence 48.1, 48.2, 48.3 of the acoustic signal by means of a transmission means 13 to a central evaluation unit 20.
    To determine the current location 44, a known method such as triangulation can be used. The determination of the current location 44 of the mobile communication device 30 can take place in a suitably designed luminaire 10, or else in a central evaluation means 20 (not shown in FIG. 3). To determine the current location 44, the evaluation device 20 can be provided with the corresponding position information of each luminaire 10 according to the invention by the central data processing unit 21. The determination of the current location yields the position information which can be transmitted by the evaluation means 20 to the data processing unit 21. The position information can be used, for example, to give a user a route recommendation for a route from his current location 44 to a product location 46 desired by the user in the room 40.
    The user may enter a desired product on his mobile communication device 30 into a user interface provided by the application program. This information about a desired product can be transmitted to the data processing unit 21 via the wireless communication link. The transmitted information can be linked in the data processing unit 21 with information about a product location 46 of the desired product. The data processing unit 22 can in turn generate a route recommendation for the user and transmit it via the wireless communication connection to the mobile communication device 30. The mobile communication device 30 may provide the route recommendation to a user via the input / output device 33.
    Above, the position determination system according to the invention is used to create a route recommendation and to make it available to the user. Likewise, other applications may be provided by location-related information. In a further exemplary embodiment, a user can be provided location-related information about the products, alternative products or other potentially interesting products available at his location and presented on a screen of the mobile communication device 30, wherein the presentation can be location-related. Similarly, special offers for the user on his way to a desired product location in the room 40 by pointing to a screen of the mobile communication device 30 are marketed specifically. This is particularly advantageous if the user's attention is already directed by current navigation within the space 40 to a considerable extent on the screen of the mobile communication device 30.
    The features described above can be advantageously combined with one another within the scope of the invention defined in the claims.
    权利要求:
    Claims (10)
    [1]
    claims
    A system for determining the position of a mobile communication device (30) in a room (40), wherein the room (40) is illuminated by at least one lamp (10), comprising a mobile communication device (30), wherein the mobile communication device (30) Means for transmitting an acoustic signal and a means for wireless communication (31), and characterized in that the system comprises at least two receiving means (11) for receiving the acoustic signal, wherein the receiving means (11) on the at least one lamp (10) and are arranged at a distance from one another, and evaluation means (20) for determining position information, and that the evaluation means (20) determines the position information for the mobile communication device (30) from the received acoustic signal.
    [2]
    2. System for position determination according to claim 1, characterized in that the receiving means (11) is adapted to receive the acoustic signal in a non-audible frequency range, in particular in the ultrasonic range.
    [3]
    3. System for determining position according to claim 1 or 2, characterized in that the mobile communication device (30) is adapted to send the acoustic signal comprising an identification information.
    [4]
    4. Positioning system according to one of claims 1 to 3, characterized in that the mobile communication device (30) is adapted to send the acoustic signal comprising an application information.
    [5]
    5. Positioning system according to one of claims 1 to 4, characterized in that the mobile communication device (30) is adapted to start an application based on a user input.
    [6]
    A positioning system according to any one of claims 5, characterized in that the wireless communication means (31) is arranged to receive a signal based on the position information and the application evaluates the received signal.
    [7]
    7. System for position determination according to one of claims 1 to 6, characterized in that the evaluation means (20) is adapted to determine the position information by subtraction of the at the different positions of the receiving means (11) received acoustic signal.
    [8]
    8. System for position determination according to one of claims 1 to 7, characterized in that the evaluation means (20) is arranged, the position information by evaluating a transit time difference and / or an acoustic signal level from the received at the different positions of the receiving means (11) acoustic To detect signal.
    [9]
    9. Light for use in a system for determining the position of a mobile communication device (30) in a room (40), wherein a space (40) by means of the lamp (10) is illuminated, characterized in that the lamp (10) at least one receiving means (11) for receiving an acoustic signal of the mobile communication device (30), and further comprising a transmission means (13) for transmitting an electrical signal corresponding to the received acoustic signal to an evaluation means (20), suitable for determining a position information of the mobile communication device ( 30) based on the received acoustic signal.
    [10]
    A mobile communication device for use in a location determining system in a room (40), the mobile communication device (30) comprising means for transmitting an acoustic signal (34), wireless communication means (31), and control means (32 ), characterized in that the control means (32) is arranged to control the means for transmitting an acoustic signal and to transmit the acoustic signal with identification information of the mobile communication device (30). For this 3 sheets of drawings
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5940346A|1996-12-13|1999-08-17|Arizona Board Of Regents|Modular robotic platform with acoustic navigation system|
    US20110153201A1|2009-12-23|2011-06-23|Samsung Electronics Co., Ltd.|Indoor navigation method and system using illumination lamps|
    DE102018113086A1|2018-06-01|2019-12-05|Gregorios Dagdagan|Acoustic sensor network node and a method for calibrating a sensor network|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202015104408.9U|DE202015104408U1|2015-08-20|2015-08-20|Interior navigation via sound|
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