• 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 present invention relates to a lighting system comprising at least one light (5A, 5B), a receiving means (1) for receiving an acoustic signal, detection means (2) for detecting speech in the detected acoustic signal, a locating means (2) for determining a receiving direction of the voice having the acoustic signal is provided, and means (2, 3) for gen- erating control information based on the determined receiving direction and output means (4) for outputting the control information to the lamp (5A, 5B).
    公开号:AT16112U1
    申请号:TGM105/2015U
    申请日:2015-04-28
    公开日:2019-01-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    LIGHTING SYSTEM WITH VOICE CONTROL The present invention relates to a lighting system with voice control and a method for controlling a lighting system. The invention relates in particular to the presence detection of people using speech.
    Presence detection sensors are often used in lighting technology to automatically switch the lighting depending on the presence and absence of people. Such sensors mainly use passive infrared (PIR) or radar technology for personal detection.
    PIR technology requires a lens in order to implement a practicable detection area. This lens, in particular, visually represents an unpleasantness in the design of luminaires, since this requires a certain size for correct functionality. In addition, PIR elements are relatively expensive and PIR technology is dependent on a specific temperature of the object to be detected.
    The radar technology requires a size due to the antenna and the transmitting and receiving electronics (RF electronics). The transmission of radar beams is disliked by many people.
    Both technologies have a limited detection range, which depends on the environment of the sensor. Objects in the detection area can hide the object to be detected, so that the light does not switch on or turns on too late. Switching on, especially outdoors, can also be triggered by animals, which is usually undesirable.
    [0006] DE 10 2010 032 761 A1 discloses a lighting system in which the presence, position and movement of a person in a room are recorded by means of a camera and the lighting in the room is controlled as a function of the detected position and / or the movement of the person becomes.
    Here, too, objects in the detection area of the camera can mask the person to be detected, so that the presence, position and movement of a person is not detected or is detected too late.
    The invention has for its object to provide devices and methods that reduce the problems described. In particular, the object is to provide a lighting system and a method for controlling a lighting system which allow precise detection of people and an easily integrable and inexpensive configuration.
    [0009] This object is achieved according to the features of the independent claims. The invention is developed by the features of the dependent claims.
    According to the present invention, the lighting system has at least one lamp, receiving means for receiving an acoustic signal, detection means for detecting speech in the detected acoustic signal, localization means for determining a direction of reception of the acoustic signal having the voice, means for generating control information based on the specific receiving direction, and output means for outputting the control information to the lamp.
    With the present invention, it is possible to realize the sensors of the lighting control and home automation in the smallest space, energy-saving and with a large detection area. The accuracy of the presence detection of people can be increased since not only the presence of a speech signal but also the direction of reception of the signal having the speech is determined. In this way, speech signals from people present in a room can be distinguished from speech signals from radio devices arranged in the room. A speech recognition that talked1 / 14
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    Patent office recognizes content is not absolutely necessary.
    The lamp can be controlled depending on the direction of reception determined. If the lighting system has several luminaires, the luminaires can be controlled individually depending on the determined direction of reception. For example, at an event it is possible to specifically illuminate a person from the audience who asks a question by automatically aligning a lamp according to the direction of reception or by activating a lamp in the vicinity of the person.
    With the present invention, people can be detected who are not in the direct field of view of the sensor or the receiving means. The sensor can hear "around the corner". The language of people and the sounds of animals or sounds of other objects (e.g. machines) can be differentiated, so that only the control command is issued when people are present.
    [0014] Less complex electronic components are required. Since it is a passive system that does not emit radiation, very little energy is required to operate it and radar beams are accepted by critically attuned people.
    According to the present invention, the origin of the voice-repellent acoustic signal can be determined and the control information can be generated based on the determined origin. This can enable more precise presence detection and more targeted control of the lights.
    The localization means may alternatively or additionally be designed to determine the speech direction of a person from the acoustic signal having the speech in order, for example, to dim lights / areas behind the speaking person and / or lights / areas in front of the speaking person lighten. This information of the language direction can also be used to control other devices that do not belong to the lighting. Devices arranged in the language direction of a person, such as doors or projectors, can be activated or devices that are opposite to the language direction can be deactivated.
    The receiving means can be formed from at least two microphones for receiving the acoustic signal. The lamp can have an elongated shape, one of the at least two microphones advantageously being arranged at one end in the longitudinal direction of the lamp.
    According to the present invention, a storage means can be provided for storing data sets of speech localization information, the data sets including at least different reception directions for speech signals having acoustic signals and each reception direction being assigned control information. The means for generating control information can be designed to read control information associated with the specific direction of reception from the storage means for output by the output means to the luminaire.
    The data sets can be pre-e.g. from the manufacturer in which storage means are stored and / or means for entering, storing and / or changing data records for the user, e.g. an interface may be provided.
    Alternatively or additionally, the data records can also be configured using voice commands. The lighting system can be put into a programming mode with a defined voice command.
    [0021] The lighting system can additionally or alternatively be designed to independently learn which voice signal or its reception directions is to be assigned specific control information. For this purpose, the lighting system has means for receiving control information for the at least one lamp, the localization means
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    Patent Office is designed to determine at least the direction of reception of an acoustic signal having a voice, which was detected during the received control information or within a certain period of time before or after the received control information, and the storage means is designed, the reception direction in connection with the received control information Save record.
    The lighting system can have a plurality of lights to be controlled, the data records containing control information, each associated with specific speech localization information, for each of the lights, and the output means being designed to provide the control information associated with the location of the acoustic signal having the speech, determined by the localization means to output to the lights.
    As an alternative or in addition, means for recognizing voice commands can be provided in the acoustic signal comprising the voice, a voice localization being assigned in the data records to each light and the data records containing control information, to which a specific voice command is assigned, for the lights, and the output means is designed to output to the luminaire control information associated with a specific voice command, which control information is associated with the location of the acoustic signal having the voice determined by the location means. The voice commands can include commands to control the lighting and commands to control other devices connected to the lighting system.
    According to the present invention, the method for controlling a lighting system with at least one lamp comprises the steps of: receiving an acoustic signal; Detecting speech in the detected acoustic signal; Determining a direction of reception of the acoustic signal comprising the speech; Generating control information based on the determined reception direction; and outputting the control information to the lamp.
    [0025] The method can additionally include the steps: determining a place of origin of the acoustic signal comprising the speech; Comparing the determined place of origin with stored places of origin for acoustic signals having speech, each stored place of origin being associated with control information; and outputting the control information associated with the determined place of origin.
    [0026] The method can additionally or alternatively take the steps: determining a language direction of a person from the acoustic signal having the language; Comparing the determined speech direction with stored speech directions for acoustic signals having speech, each stored speech direction being assigned control information; and outputting the control information associated with the determined language direction.
    The invention is explained in more detail with reference to the accompanying drawings. Show it:
    Fig. 1 schematically shows the structure of a lighting system according to an embodiment according to the present invention and Fig. 2 shows a lighting system according to an embodiment according to the present invention, and Fig. 3 in a flowchart the method for controlling a Lighting system according to an embodiment according to the present invention.
    Fig. 1 shows a lighting system provided with a sensor S for presence detection according to an embodiment according to the present invention. The system shown in Fig. 1 has the dashed line sensor S for presence detection, which has three microphones 1A, 1B, 1C for recording voice signals, a control circuit 2, a memory device 3 and an interface 4 for input and output of control information or Includes control commands, and assigns two to the interface
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    Lights 5A, 5B connected to the patent office.
    The illuminant of the lights 5A, 5B can comprise a light emitting diode (LED) or a plurality of LEDs. The LEDs can be inorganic or organic LEDs. The multiple LEDs can be connected in series or in parallel. The plurality of LEDs can also be connected in more complex arrangements, for example in several series connections connected in parallel with one another. The lights 5A, 5B can have a circuit for operating the LEDs.
    The microphones 1A, 1B, 1C are advantageously arranged at different positions and so far apart that a good localization of the direction and the position of the person or of the speech signal with respect to the microphones 1A, 1B, 1C is possible. While three microphones 1A, 1B, 1C are shown by way of example, the system can also have only two microphones or more than three microphones. A microphone array, an acoustic antenna, can also be used, in which the microphones are arranged in a ring, cross shape, linear, spiral or quasi-random distribution on a flat surface.
    The memory device 3 can be a removable memory, such as a memory card, or could be integrated in the control circuit 2. In the storage device 3, directions of reception of various speech signals to be detected, positions or areas in which a person speaking can be located, and language directions (directions in which a person is speaking) can be stored. Voice commands for controlling the lighting system and the devices connected to the lighting system can also be stored in the memory device 3.
    [0035] One or more control commands and / or control information in a data record can each be assigned to the stored different reception directions, positions (areas), language directions and voice commands. It is also possible to assign one or more control commands or control information to a combination of a specific reception direction or position and a specific language direction and / or a specific voice command.
    The control commands (control information) assigned to the different reception directions, positions, language directions and voice commands can be a switch-on command, a switch-off command and / or a dimming command, color change command, operating mode change command (programming mode, normal operation) for one or both of the lights 5A, 5B, include.
    Alternatively, especially if only a single control command, such as a switch-on command, is to be issued by the control circuit 2 when a speech signal occurs / is detected from a specific reception direction, position, speech direction or a voice command for switching on from a specific reception direction, one certain position or a certain language direction, the switch-on command from the control circuit 2 for the illuminant 5 are issued. The switching off of the illuminant 5 can be triggered by the control circuit 2 after a certain operating time has elapsed or after the speech signal has been silenced. It is then not necessary to assign the one control command to the specific reception direction, position, language direction or the voice command for switching on from the specific reception direction, from the specific position or the specific language direction in the memory device 3.
    The control circuit 2 can be a semiconductor integrated circuit or can comprise a semiconductor integrated circuit. The control circuit 4 can be designed as a processor, a microprocessor, a controller, a microcontroller or an application-specific special circuit (ASIC) or a combination of the units mentioned.
    The sound waves (acoustic signal) detected by at least two of the microphones 1A, 1B, 1C are converted into an electrical signal and fed to the control circuit 2. The control circuit 2 detects speech or speech-like sounds or vocals in the electrical signal, determines at least the direction of reception of the acoustic signal if successful
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    Patent office rather voice detection and compares the specific reception direction with the reception directions stored in the storage device 3 or the stored data records. In addition, the position, language direction and / or a voice command contained in the acoustic signal can be determined and a corresponding comparison can be made with the stored data records if the voice detection is successful.
    Techniques for determining the direction of reception of a speech signal, the origin position of a speech signal and the speech direction, the direction of propagation of the sound signal based on the speech source, and techniques for detecting speech in an acoustic signal are, for example, from Woelfel, Matthias et al. : "Distant Speech Recognition", 2009 Wiley & Sons, ISBN 978- 0-470-51704-8 known.
    For the determination of the reception direction and position, the time difference that a pulse in the acoustic signal needs to reach the different microphones 1A, 1B, 1C (ITD) or the volume difference (ILD) on the different microphones 1A, 1B , 1C can be evaluated. The different angular dependence of the sound wave at different frequencies can be used to determine the speech direction.
    If a correspondence or a certain degree of similarity of the reception direction, position and / or the speech direction of the detected speech signal with a predetermined reception direction, position or speech direction is determined, the control circuit 2 issues the control command (switch-on command) via the interface 4 or First determines the control command (switching on, dimming or switching off the lights 5A, 5B, color change command, operating mode change command (programming mode, normal operation)) by reading out the control command assigned to the stored reception direction, position, and / or the speech direction from the memory device 3.
    The degree of similarity to be used for an evaluation of the correspondence can depend on the reception direction, position, language direction and / or the control command and can be stored in the memory device 3 or determined by the control circuit 2. If there is no correspondence or no specific similarity of the reception direction, position, and / or the speech direction of the recorded speech signal with predetermined (stored) reception directions, positions or speech directions, no control command is issued to the lights 5A, 5B.
    [0045] The output of the control command can be influenced by other factors. The output of the control command can thus depend on a brightness signal that is transmitted from a twilight sensor (not shown) to the control circuit 2 via the interface 4. From a certain brightness, the control circuit 2 could suppress the output of a switch-on command despite positive speech recognition or, instead of a switch-on command of the lamps 5A, 5B with maximum brightness, issue a dimming command for operating the lamps 5A, 5B with reduced brightness.
    The lighting system shown in Fig. 1 can be designed as an independent device, a single lamp with one or more lamps. Via the interface 4, remote devices, for example other lights, can be controlled or regulated using the control commands.
    For this purpose, the interface 4 can have a plurality of outputs for connecting devices, each output connection having a specific device, a specific control command, a specific direction of reception of a voice signal, a specific area of people (location) in which a voice signal occurs, and / or one certain language direction is assigned.
    2 shows a lighting system 6 according to an exemplary embodiment according to the present invention and a person 7 running below the lighting system 6, the person 7 being at different positions below the lighting system 6 at successive times t1 and t2. In the lighting system 6 shown in FIG. 2, there are two lights 5A, 5B and one between the two lights 5A and 5b
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    Microphone array 1 housed in a housing. The speech signal received by the microphone array 1 from the person 7 is identified by dashed arrows.
    As shown in FIG. 2, the microphone array 1 receives the speech signal from the person 7 at a time t1 from a first direction and at a time t2 from a second direction. According to the change in the receiving direction, the control circuit 2 (not shown) can turn on the lamp 5A at the time t1 when the voice signal is received from the first direction and the person 7 is below the lamp 5A, and then turn on the lamp 5B at the time t2 when the speech signal is received from the second direction and the person 7 is below the lamp 5B. The lamp 5A could be switched off at the time t2.
    According to a further aspect of the invention it can be provided that control commands (control information) and / or the acoustic signals picked up by the microphone array 1 or the microphones 1A, 1B, 1C, for example via the interface 4 with an Internet protocol (IP ) 9 (or another protocol) to other control units or actuators 8 (door openers, fans, heating or alarm systems) of a building.
    In particular, the acoustic signal picked up by the microphones 1A, 1B, 1C, which is detected by a lamp, can have effects on another lamp in a same room or in the same building, which is functional with the lamp which detects the acoustic signal is connected (wired or wireless, for example IP protocol or bus systems).
    With regard to the spatial resolution by the plurality of microphones 1A, 1B, 1C, it is preferred if these are attached to or in the lamp as far apart as possible, for example in the two end regions of an elongated lamp. If the signals picked up by the microphones 1A, 1B, 1C are transmitted by means of a bus system, it must be ensured that a transmission of the signals is synchronized in time, for which purpose additional wireless or wired communication between the microphones 1A, 1B, 1C and / or a clock generator (processor ) may be necessary.
    As described above, the determined position and / or direction can be used to increase the accuracy of the detection of people by filtering out speech signals from positions and / or directions on / in which no people but only television sets, Radio or other audio equipment. In addition, it is possible to send control commands only to those lights or devices that are in the direction of or near the speaking person.
    Alternatively or additionally, the temporal development of the speech signal, a change in position and / or a change in the direction of the speech signal can be detected and the output of a control command can be made dependent on the detected change. For example, the switching on or dimming of a lamp could be made dependent on whether a detected person or the voice signal caused by the person is moving towards or away from the lamp (or another object).
    With a detection of the change in the position of a speech signal, the lighting can be switched on when entering a hallway and switched off again after crossing the hallway.
    According to a further aspect of the invention, a prediction of the direction of movement and / or the further local development of the language direction, the localization of the language source (or its change in time) and possibly also, for example, by means of the Doppler speed of the language source language source. The lighting is controlled according to the prediction, whereby, for example, intensified or exclusive lighting of a room can always take place at a certain distance from the moving speech source.
    According to one embodiment of the present invention, the tax is levied
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    In addition to the voice command detected by the microphones 1A, 1B, 1C, patent office formations also depend on the position and / or direction of the detected voice command and / or a change in the position and / or the direction of an acoustic signal having the voice command. In the storage device 3, one or more positions and / or directions of an acoustic signal to be detected and / or changes in position and / or direction of an acoustic signal to be detected can be assigned to each executable and stored voice command.
    The directions, changes in direction, positions, changes in position, executable voice commands and their control information assigned in a data record can be made in advance, e.g. by the manufacturer, are stored in the storage device 3 and / or can be stored by the user in the storage device 3 by means of the interface 4.
    The lighting system 6 can additionally or alternatively be designed to independently learn which voice signals or their directions, changes in direction, positions, changes in position, a specific control command is to be assigned. For this purpose, the lighting system 6 can be set by the user, for example after installation, in a programming mode storing the directions, changes in direction, positions, changes in position and their associated control commands in the memory device 3. The lighting system 6 or the sensor S could have a switch (not shown) by means of which the programming mode can be switched on and off. Alternatively, the programming mode can be activated continuously or can be activated automatically for a certain period of time after the installation of the lighting system 6.
    In the programming mode, the control circuit 2 links detected directions, changes in direction, positions, changes in position with received control commands or control information which are related in time to the detected directions, changes in direction, positions and changes in position. For this purpose, acoustic signals from at least two of the microphones 1A, 1B, 1C are recorded and continuously recorded, the oldest recorded signal segments of the recorded signal being able to be continuously overwritten with the most current signal segments in order to only have to save the recorded signal from a limited past period.
    If a control command for, for example, the switching on or off of a lamp is received, the control circuit 2 searches for voice signals in the stored acoustic signal that is during the received control command or within a certain period of time before and / or after the received control command was determined, determines the direction, change in direction, position and / or the change in position of the speech signal, for example by means of transit time differences of the recorded speech signal in the recorded acoustic signals and the known positions of the microphones 1A, 1B, 1C to one another, and stores the determined direction, change in direction, position and / or the change in position as location information in connection with the received control command in the memory device 3.
    The stored localization information and the received control command assigned to this localization information can be used immediately in the presence detection or only after the programming mode has ended. However, the use for presence detection can only be released if this combination of voice localization and control command has been detected repeatedly, i.e. the control circuit 2 must have repeatedly assigned the same voice localization to the same control command received at different times. The number of repetitions for the release can be specified by the user or depend on the type of control command.
    The independent assignment of speech localization to control commands by the sensor S enables high accuracy in presence detection, since in the programming mode following the presence detection mode, the stored noises in the same environment are detected and detected by the same sensor S.
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    Patent Office A control command can be the switch-on signal of a light switch of a luminaire and / or a signal received via the interface 4 at a specific output connection or a voice command. Switching on a lamp could also be detected using the twilight sensor.
    Fig. 3 shows the method for presence detection according to an embodiment according to the present invention. In the first step S1, acoustic signals are recorded with at least two microphones 1A, 1B, 1C. The detected signals can be buffered for processing in a buffer memory. In step S2, the control circuit 2 carries out continuous speech detection in at least one of the detected signals. As soon as a voice signal is recognized in step S2, the direction and possibly also the position of the recognized voice signal are determined in step S3 by determining the transit time differences of the voice signal with respect to the detection of the at least two microphones 1A, 1B, 1C. In step S4, if a control command is assigned to the detected direction, this control command is output.
    According to the present invention, it is not necessary for the presence detection and the control of the lighting system 6 and other devices that a person specifically issues a voice command for the control. The control can take place with an unspecific speech signal, which is generated when a person is talking.
    When using voice commands, such as "switch on light", "dimming" or "switch off light", when controlling the lighting system 6 with a plurality of lamps 5A, 5B, the voice commands can be received by means of information about the direction of reception of the voice command or the voice signal a desired lamp 5A, 5B can be assigned without having to address this lamp 5A, 5B with the voice command ("lamp 5A dimming").
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    权利要求:
    Claims (14)
    [1]
    Expectations
    1. Lighting system with at least one lamp (5A, 5B);
    Receiving means (1) for receiving an acoustic signal;
    Detection means (2) for detecting speech in the detected acoustic signal; characterized in that a localization means (2) is provided for determining a direction of reception of the acoustic signal comprising the speech; and means (2, 3) for generating control information based on the determined receiving direction; and an output means (4) for outputting the control information to the lamp (5A, 5B).
    [2]
    2. Lighting system according to claim 1, characterized in that the localization means (2) is designed to determine the origin of the acoustic signal comprising the speech; and that the means (2, 3) for generating control information is designed to generate the control information based on the determined place of origin;
    and / or that the localization means (2) is designed to determine the speech direction of a person from the acoustic signal comprising the speech; and that the means (2, 3) for generating control information is designed to generate the control information based on the determined language direction.
    [3]
    3. Lighting system according to claim 1 or 2, characterized in that the lamp (5A, 5B) has an elongated shape; and that the receiving means (1A, 1B, 1C) has at least two microphones for receiving the acoustic signal, one of the at least two microphones being arranged at an elongated end of the lamp.
    [4]
    4. Lighting system according to one of claims 1 to 3, characterized in that a storage means (3) is provided for storing data sets of speech localization information, the data sets including at least different reception directions for speech acoustic signals and control direction is assigned to each reception direction; wherein the means (2, 3) for generating control information is designed to read control information associated with the specific direction of reception from the storage means for output by the output means (4) to the lamp (5a, 5B);
    and / or that a storage means (3) is provided for storing data sets of speech localization information, the lighting system being able to be put into a programming mode by a defined acoustic signal and the data sets being configurable with acoustic signals;
    and / or that a means for receiving control information is provided for the at least one lamp; wherein the localization means (2) is designed to determine at least the direction of reception of an acoustic signal having a voice, which was detected during the received control information or within a certain time period before or after the received control information; and the storage means (3) is designed to store the reception direction in connection with the received control information in a data record.
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    [5]
    5. Lighting system claim 4, characterized in that the lighting system has a plurality of lights (5A, 5B);
    that the data records contain control information, to which specific language localization information is assigned, for each of the lights (5A, 5B); and that the output means (4) is designed to output the control information associated with the location of the acoustic signal comprising the speech, which location is determined by the localization means (2).
    [6]
    6. Lighting system according to claim 5, characterized in that a means (2) for recognizing voice commands is provided in the acoustic signal comprising the voice; wherein in the data sets each luminaire (5A, 5B) is assigned a language localization and the data sets contain control information, to which a specific voice command is assigned, for the luminaires (5A, 5B); and that the output means (4) is designed to output control information associated with a specific voice command to the light (5a, 5B) which is associated with the location of the acoustic signal comprising the voice determined by the location means (2).
    [7]
    7. Lighting system according to claim 6, characterized in that a means (2) for recognizing voice commands in the acoustic signal comprising the voice; wherein in the data sets of each luminaire (5A, 5B) a voice localization is assigned and the data sets control information, to which a specific voice command is assigned, for further control units or actuators; and that the output means (4) is designed to output to the further control units or actuators control information associated with a specific voice command, which control information is associated with the location of the acoustic signal comprising the voice determined by the location means (2).
    [8]
    8. A method for controlling a lighting system with at least one lamp, characterized in that the method comprises the following steps: receiving (S1) an acoustic signal;
    Detecting (S2) speech in the detected acoustic signal;
    Determining (S3) a direction of reception of the acoustic signal comprising the speech; Generating (S4) control information based on the determined receiving direction; and
    Output (S4) of the control information to the lamp.
    [9]
    9. The method according to claim 8, characterized in that the method comprises the following steps:
    Determining (S3) a place of origin of the acoustic signal comprising the speech; Comparing (S4) the determined place of origin with stored places of origin for acoustic signals having speech, each stored place of origin being associated with control information; and
    Outputting (S4) the control information assigned to the determined place of origin.
    [10]
    10. The method according to claim 8 or 9, characterized in that the method comprises the following steps: determining a language direction of a person from the acoustic signal having the language;
    Comparison of the determined language direction with stored language directions for language
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    Patent office before acoustic signals, with each stored speech direction being assigned control information; and
    Output of the control information assigned to the determined language direction.
    With 3 sheets of drawings
    [11]
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    Μ.
    Vi lA
    [12]
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    [14]
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    同族专利:
    公开号 | 公开日
    DE102015205248A1|2016-09-29|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015205248.6A|DE102015205248A1|2015-03-24|2015-03-24|Lighting system with voice control|
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