• 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 device for presence detection with means (2) for transmitting and receiving radio-frequency radio signals (S1, S2) for data transmission, means (3) for detecting a signal transmitted by the presence of a signal in the reception range of the transmitting and receiving means (2). The object (4) caused change in one of the transmitting and receiving means (2) received high-frequency radio signal (S2) and means (5) for outputting a presence of an object (4) signal based on the detection means (3 ) change.
    公开号:AT16454U1
    申请号:TGM171/2016U
    申请日:2016-07-07
    公开日:2019-10-15
    发明作者:Teja Davuluru Uday；Siegel Martin
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a device and a method for presence detection, preferably in closed spaces. In particular, the invention relates to the presence detection of persons.
    Sensors for presence detection are often used in lighting technology to automatically switch the lighting depending on the presence or absence of people. Such sensors mainly use passive infrared (PIR) radar technology for personal detection.
    PIR technology requires a lens to realize a practical detection range. In particular, this lens is visually an ugliness in the design of lights, as this requires a certain size for the correct functionality. In addition, PIRElemente are relatively expensive and the PIR technology is dependent on a certain temperature of the object to be detected, which is why above all an unintentional switching on by detection of warm objects that are not persons, can be triggered. The determination of the direction of movement of the object to be detected is also possible only with a plurality of spatially distributed PIR elements.
    The invention has for its object to provide devices and methods that reduce the problems described. In particular, it is an object to provide a device and a method for presence detection which permit accurate detection and a cost-effective and easily integrated design.
    This object is solved according to the features of the independent claims. The invention is further developed by the features of the dependent claims.
    According to the present invention, the presence detection apparatus comprises means for transmitting and receiving radio-frequency radio signals for data transmission, means for detecting a change in one of the transmission and reception caused by the presence of an object located in the reception area of the transmission and reception means Receiving means received radio frequency radio signal and means for outputting a presence of an object indicative signal based on the detected by the detecting means change.
    The transmitting and receiving means may be an existing radio transmission device, which, for example, according to the standard IEEE 802.15.4, a transmission protocol for wireless personal area networks (WPAN), works and is already installed in many devices or lights. Thus, no additional detection element (sensor) is required for the presence detection, which allows a cost-effective and easily integrable design.
    The in the data transmission or extra for the presence detection of the transmitting and receiving means sent high-frequency radio signals are reflected by the located in the receiving area of the transmitting and receiving means object, such as a person or absorbed and re-emitted. The reflected or re-emitted radio frequency radio signal is received by the transmitting and receiving means and evaluated by the detecting means, whereby specific patterns caused by the reflection at the object can be detected in the received signal. Different objects can create different patterns, allowing objects to be identified.
    Since the human body consists predominantly of water, the presence of the object located in the receiving area of the transmitting and receiving means may cause a phase shift in the transmitted radio-frequency radio signal, wherein the detection means for detecting the change may be designed to the phases 1/11
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    Detecting shift in the received or reflected radio-frequency radio signal. This can be done by comparing the received radio frequency radio signal with the transmitted radio frequency radio signal. It is also possible to evaluate a known radio frequency signal transmitted by another source, reflected by the object and received by the transmitting and receiving means for the presence detection of the detection means.
    The presence of the present in the receiving region of the transmitting and receiving means object may also cause a change in frequency in the transmitted radio-frequency radio signal (Doppler effect), wherein the detection means for detecting the change may be adapted to at least the frequency change in the received radio frequency radio signal to detect. This also makes it possible to determine the direction of movement of the object. In particular, the detected frequency change can be used to determine whether the object is moving toward or away from the transmitting and receiving means, so that, for example, one or more luminaires arranged in the direction of movement can be switched on and / or luminaires arranged counter to the direction of movement can be switched off.
    The transmitting and receiving means may be adapted to transmit in the data transfer information about currently detected presence of objects to at least one other device for presence detection or a central control device. With this information, the direction of movement and / or a movement pattern of one or more objects can be determined in order to predict, for example, directions of movement or absences in certain areas on the basis of the previously detected directions / patterns and illumination according to the predicted movement directions or the predicted An or absences. Based on predicted presence or absence, lights and / or other actuators may already be activated before a person is detected by a presence detection device.
    The device may comprise means for determining the direction of movement of the object located in the receiving area of the transmitting and receiving means, wherein the transmitting and receiving means may be adapted to at least information on currently detected presence of objects of at least one other in the data transmission Receive presence detection device. The determining means may be configured to determine the direction of movement based at least on the change detected by the detection means and the received information, and the output means may be configured to output the signal based on the determined direction of movement. Hereby, as described above, luminaires arranged in or against the direction of movement and / or other devices can be switched on or off, dimmed or otherwise controlled.
    The transmitting and receiving means may be adapted to at least receive radio frequency signals having frequencies of preferably 2.4 GHz or higher, or even to transmit.
    A luminaire according to the present invention comprises at least one of the above-described devices and control means for controlling the light emitted from the luminaire based on the signal output by the output means.
    According to the present invention, a method for detecting presence comprises the steps:
    - receiving a radio-frequency radio signal by means of a data transmission device;
    Detecting a change in the received radio-frequency radio signal caused by the presence of an object located in the reception area of the data transmission device; and
    Outputting a signal indicating a presence of an object based on the detected change.
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    AT16454U1 2019-10-15 Austrian
    Patent Office The presence of the object located in the receiving area of the transmitting and receiving means may cause at least a shift of the phase of the transmitted radio frequency radio signal, wherein in the detecting step the phase shift in the received radio frequency radio signal can be detected.
    Additionally or alternatively, the presence of the object located in the receiving area of the transmitting and receiving means may cause a frequency change in the transmitted radio frequency radio signal, wherein in the detecting step the frequency change in the received radio frequency radio signal can be detected.
    In addition, with the method, the direction of movement and / or the distance of the object located in the receiving area of the data transmission device with respect to the transmitting and receiving means can be determined on the basis of the detected frequency change.
    The signal can be output from at least one lamp of a plurality of lights located at different locations, which is associated with the particular direction of movement and / or the specific distance.
    In the method, information can be sent to at least one presence detection device by means of the data transmission device via the presence detected in the detection step.
    Additionally or alternatively, the method may include the steps:
    - Receiving information by means of the data transmission device of at least one device for presence detection on currently detected presence of objects; and
    Determining the direction of movement of the object located in the receiving area of the data transmission device on the basis of the detected change and the received information, wherein the signal in the output step is output on the basis of the determined direction of movement.
    In the method, the received radio-frequency radio signal may have a frequency of 2.4 GHz or higher.
    The invention will be explained in more detail with reference to the accompanying drawings. Show it:
    Fig. 1 shows a presence detection apparatus according to a first embodiment of the present invention; Fig. 2 shows schematically a presence detection apparatus according to a second embodiment of the present invention; and Fig. 3 shows an arrangement of lamps according to an embodiment according to the present invention.
    Components with the same functions are identified in the figures with the same reference numerals.
    1 comprises a transmitting and receiving means 2 for transmitting and receiving radio-frequency radio signals S1, S2, a detection means 3 for detecting a by the presence of a in the reception range of the transmitting and receiving means. 2 4 caused a change in a radio frequency signal S2 received by the transmitting and receiving means and an output means 5 for outputting a signal indicating a presence of the object 4 at the output terminal 6 on the basis of the change detected by the detecting means 3.
    The transmitting and receiving means 2 is a transceiver which transmits, via a radio link, data inputted to the port 7 to an external device 8 and receives data from the external device 8 to them output the connection 7.
    3.11
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    Patent Office As shown in FIG. 1, the radio frequency radio signal S1 sent from the external device 8 also reaches the object 4 located in the reception area of the transmission and reception means 2, a person at which the radio frequency radio signal S1 is reflected / deflected or re-emitted and received as a radio-frequency radio signal S2 from the transmitting and receiving means 2.
    The transmitting and receiving means 2 transmits the received radio-frequency radio signal S2 reflected by the object 8 to the detection means 3, which detects a change in the radio-frequency radio signal caused by the presence of the object relative to the original one Radio-frequency radio signal S1 determined.
    A change may be a phase shift and / or a change in frequency (Doppler effect) in the received radio-frequency radio signal, for example, in a wireless local area network (wireless LAN, WLAN) with a frequency band of 2.4 GHz to frequency deviations of 8 Hz can occur in a person moving in the receiving area. The transmitting and receiving means 2 can operate according to the "Bluetooth" radio method / standard. As the frequency increases, so does the frequency deviation. A use of the invention in a 5 GHz wireless network is therefore particularly advantageous since the recognition is simplified.
    In the device 1, various patterns and / or values of signal deviations can be stored, which occur with high probability in the presence of objects to be detected by the device 1 and which of the detection means 3 with the currently determined pattern and / or Value of the phase / frequency change. The patterns and / or values stored in the device 1 are determined by the manufacturer. Alternatively or additionally, they can be determined on site or adapted or supplemented, wherein the device 1 is displayed in a learning phase, the presence of an object to be detected by a special signal, so that the determined by the detection means 3 associated signal deviation or the pattern for the later presence detection is stored.
    When a change caused by the presence of the object 4 is detected with a stored pattern or a stored value, the detection means 3 causes the output means 5 to output a signal indicating the presence of an object 4 at the output terminal 6. The signal is output over the entire period of presence or over a certain period of time. At the output terminal 6, a lamp or an actuator, such as a door opener, be connected to turn them on or off by the signal.
    In the embodiment shown in Fig. 1, the high-frequency radio signal S1 used for the presence detection is sent from the external device 8. However, it is also possible for the transmitting and receiving means 2 both to transmit the radio-frequency radio signal S1 and to receive the reflected radio-frequency radio signal S2.
    In this way, presence detection when sending and receiving data to / from the external device 8 can take place. It is also possible that after a first detection of a presence of the object 4, which occurs during a data transmission, special high-frequency radio signals, which are not the data transmission but the object detection, from the transmitting and receiving means 2 and / or from the external Device 8 are sent after a request by the device 1.
    Fig. 2 shows a lighting system in which two ceiling lights 9A and 9B arranged at different positions respectively comprise a presence detection apparatus 1A, 1B according to the present invention and a control means 10A, 10B for controlling the light emitted from the lights 9A, 9B exhibit. Both devices 1A, 1B can determine both the presence and the direction of movement of the object located in the reception area, wherein a frequency change in the received radio-frequency radio signal S2 is detected. The results are transferred from the device 1A, 1B to the control 4/11
    AT16454U1 2019-10-15 Austrian
    Patent Office device 10A, 10B transmitted, which turns on the light on this basis, or dims. Of course, the system may also include other infrastructure elements, such as routers, in addition to or in lieu of one or both of the lights 9A, 9B provided with the device 1A, 1B.
    In the example shown in Fig. 2, the object 4 moves away from the area illuminated by the ceiling light 9A and toward the area to be illuminated by the ceiling light 9B. The radio frequency radio signal S1 transmitted from the device 1A of the ceiling light 9A is shown in a sinusoidal shape and is reflected by the moving object 4 and changed in frequency. The device 1A of the ceiling light 9A receives the reflected high-frequency radio signal S2 and determines therefrom the presence and direction of movement of the object 4. As the object 4 moves toward the ceiling light 9B, the control device 10B turns the ceiling light 9B off, does not dim or dim Light up.
    Similarly, the device 1A can detect the presence and direction of movement of the object 4. For this purpose, the reflected radio-frequency radio signal S2 is evaluated by the self-transmitted radio-frequency radio signal S1 or a reflected radio-frequency radio signal S2 caused by a radio-frequency radio signal S1 transmitted by the device 1B of the ceiling light 9B. As the object 4 moves away from the ceiling light 9A, the controller 10A turns off the ceiling light 9A, does not turn on or dims the light.
    The direction of movement of the object 4 or its current position can also be determined by means of the evaluation of acquisition times. For this purpose, the control device 10A or the device 1A of the ceiling light 9A can display the event of the detection of the object 4, which was effected, for example, by transmitting the radio-frequency radio signal S1 by itself, the control device 10B or the device 1B. This can determine from the time difference between the time of the display and the time at which the object 4 is detected by the device 1B, whether the object 4 moves towards the ceiling light 9B or to the device 1B or away from it. However, this requires synchronization of the time base in both devices 1A, 1B.
    If the object 4 is detected by one of the devices 1A, 1B, as described above, it can send special high-frequency radio signals, which are not used for data transmission but for object detection, in order to give the other devices 1A, 1B a fast and accurate Capture object 4 to allow.
    Fig. 3 shows a lighting system with a plurality of floor lamps 9A, 9B, 9C, which are controllable by a central control device 10. The standing lights 9A, 9B, 9C each have at least the transmitting and receiving means 2A, 2B, 2C.
    The control device 10 may be connected via a radio link and / or by means of cables (not shown) with the floor lamps 9A, 9B, 9C. If the control device 10 is connected by means of cables to the standing lamps 9A, 9B, 9C, in particular to the connection 7 of the respective transmitting and receiving means 2A, 2B, 2C, the detection means 3 and the output means 5 can be located on the side of the control device 10 ., be integrated in the control device 10.
    The standing lamps 9A, 9B, 9C communicate with each other via the transmitting and receiving means 2A, 2B, 2C, with the control device 10 and / or devices for remote control of the standing lights 9A, 9B, 9C (not shown).
    The presence and the direction of movement of the object 4 are detected by each of the standing lights 9A, 9B, 9C and transmitted to the control device 10 or by the control device 10 by means of the high-frequency radio signals S1 output at the respective terminal 7, according to the method described above. S2 itself determined. The control device 10 determines from the detected presence and movement direction as well as the times of the detection of the standing lights 9A, 9B, 9C located at different positions, the current one
    5/11
    AT16454U1 2019-10-15 Austrian
    Patent Office and future position (path) of the object 4 and controls the standing lights 9A, 9B, 9C, so that standing lights 9A, 9B, 9C, which are assigned to the future position or the path are turned on or dimmed before the object 4, the position achieved and the standing lights 9A, 9B, 9C, which are assigned neither the current nor future position (or path) are off / not turned on or dimmed.
    It is also possible that, after the position of the object 4 is determined or predicted, the control device 10 determines the transmitting and receiving means 2A, 2B, 2C or the standing lights 9A, 9B, 9C, with which the most accurate detection of the object 4 is possible and this causes special high-frequency radio signals S1, which serve in this case, not the data transmission but the object detection emit.
    The standing lights 9A, 9B, 9C or the control device 10 may be designed, as described above, patterns and / or values of signal deviations, which are caused by the presence of an object 4 located in the reception area of the transmitting and receiving means, to save and / or to learn. In particular, patterns and / or values of particular objects 4 may be stored / learned to identify them (human or animal) and to allow or suppress switching in the presence of those objects 4.
    权利要求:
    Claims (10)
    [1]
    1. A device for presence detection with
    Means (2) for transmitting and receiving radio-frequency radio signals (S1, S2) for data transmission;
    Means (3) for detecting a change caused by the presence of an object (4) located in the receiving area of the transmitting and receiving means (2) in a radio-frequency radio signal (S2) received by the transmitting and receiving means (2); and
    Means (5) for outputting a signal indicating a presence of an object (4) on the basis of the change detected by the detection means (3).
    [2]
    2. Apparatus according to claim 1, wherein the presence of the object (4) located in the receiving area of the transmitting and receiving means (2) causes at least a shift of the phase of the transmitted radio frequency radio signal (S1) and the detection means (4) for detecting the change thereto is designed to detect at least the phase shift in the received radio-frequency radio signal (S2).
    [3]
    3. Device according to claim 1 or 2, wherein the presence of the in the receiving region of the transmitting and receiving means (2) located object (4) causes at least a change in the frequency of the transmitted radio frequency radio signal (S1) and the detection means (3) for the detection of Change is designed to detect at least the frequency change in the received radio frequency radio signal (S2).
    [4]
    4. Device according to one of claims 1 to 3, wherein the transmitting and receiving means (2) is adapted to at least information on currently detected presence of objects (4) in at least one other device (8, 9B) for presence detection during data transmission transferred to.
    [5]
    5. Device according to one of claims 1 to 4, comprising
    Means (3) for determining the direction of movement of the object (4) located in the reception area of the transmitting and receiving means (2); wherein the transmitting and receiving means (2) is adapted to receive at least information on currently detected presence of objects (4) from at least one other presence detection device (8, 9B) during data transmission;
    the determining means (3) is adapted to determine the direction of movement based at least on the change detected by the detecting means (3) and the received information; and the output means (5) is adapted to output the signal based on the determined direction of movement.
    [6]
    6. Device according to one of claims 1 to 5, wherein the transmitting and receiving means (2) is adapted to receive high-frequency radio signals with frequencies of 2.4 GHz or higher at least.
    [7]
    A lamp comprising at least one device according to any one of claims 1 to 6, comprising control means (10, 10A, 10B) for controlling the light emitted from the lamp on the basis of the signal output from the output means (5).
    [8]
    8. Method for presence detection with the steps:
    Receiving a radio-frequency radio signal (S2) by means of a data transmission device (2);
    Detecting a change in the received radio-frequency radio signal (S2) caused by the presence of an object (4) located in the reception area of the data transmission device (2); and
    Outputting a signal indicative of a presence of an object (4) based on the detected change.
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    [9]
    9. Method according to claim 8, wherein the presence of the object (4) located in the reception area of the data transmission device (4) causes at least a shift of the phase of the transmitted radio frequency radio signal (S1) and in the detection step at least the phase shift in the received radio frequency Radio signal (S2) is detected.
    [10]
    10. The method according to claim 8, wherein the presence of the object (4) located in the reception area of the data transmission device (4) causes at least one change in the frequency of the transmitted radio-frequency radio signal (S1) and in the detection step at least the frequency change in the received one Radio frequency signal (S2) is detected.
    For this 3 sheets of drawings
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    法律状态:
    优先权:
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