• 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:

    公开号:SE1350386A1
    申请号:SE1350386
    申请日:2013-03-27
    公开日:2014-09-28
    发明作者:Jon Andersson；Joseph Ah-King；Tom Nyström
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    2 to warn, inform, etc. Alternatively, projectors can be used that project corresponding information into the mirror glass. US2010 / 0253492A1 describes a HUD used to detect pedestrians. A projector projects an image on a windshield that has light-emitting elements or a microstructure over a predefined area. The system can also detect where the driver's eyes are, to project the image in relation to the position of the eyes.
    The mirrors that are outside the vehicle must, for obvious reasons, protrude outside the vehicle, which means that they run a high risk of being damaged. As the HUD technology is relatively expensive, it is not desirable to incorporate the technology into the mirror lenses themselves.
    The object of the invention is thus to provide an improved system for drawing the driver's attention to objects in the environment which at least partially removes one or some of the described problems with prior art.
    Summary of the invention According to one aspect, the object of the invention is achieved with a system for displaying information on a window pane of a vehicle with at least one mirror mounted outside the window pane of the vehicle, where the window pane is, for example, a side window.
    The system comprises a detector arrangement adapted to detect an object in the vicinity of the vehicle which is reflected in the mirror and to generate an object signal rp, with characteristics of the object. The system also comprises a first analysis unit which is adapted to receive the object signal cp1 and to determine a first object position P1 for the detected object on the mirror based on the characteristics of the object. The first analysis unit is further adapted to determine a second object position P2 on the window pane in a line of sight for the driver between the driver and the mirror based on a driver position in the vehicle and the first object position P1 and to generate a display signal second object position P2. The system also includes a display arrangement adapted to receive the display signal from the window between the driver and the mirror in relation to the second object position P2, 3 so that the information is displayed on the window in the driver's line of sight in relation to the object reflected in the mirror.
    As the vehicle has a number of mirrors, it can be difficult for the driver to quickly notice an object in one of the mirrors. The system allows the driver to quickly pay attention to the object by displaying information in relation to the object on the window pane in a line of sight between the driver and the object reflected in the mirror. The information can, for example, call in or point to the object, and in this way draw the driver's attention to the mirror in which the object is reflected, and also the object. The driver can then quickly direct his attention to this, and take appropriate action.
    According to another aspect, the object is achieved by a method for displaying information on a window pane of a vehicle with at least one mirror mounted outside the window pane of the vehicle, the method comprising the steps of - detecting an object in the vicinity of the vehicle reflected in the mirror; - determining a first object position P1 for the detected object on the mirror based on the characteristics of the object; - determine a driver's position for the driver of the vehicle; determining a second object position P2 on the window pane in a line of sight of the driver between the driver and the mirror based on the driver position and the first object position P1; - display the information on the window pane between the driver and the mirror in relation to the second object position P2, so that the information is displayed on the window pane in the driver's line of sight in relation to the object reflected in the mirror.
    Preferred embodiments are defined by the dependent claims.
    Brief description of the drawing Fig. 1 schematically shows a vehicle with mirrors.
    Fig. 2 shows a block diagram of a system according to some embodiments of the invention. Fig. 3 shows a top view of a part of a driver's cab in a vehicle shown in Fig. 1.
    Fig. 4 shows a window pane through which two side mirrors are visible to the driver.
    Fig. 5 shows a flow chart for a method according to some embodiments of the invention.
    Detailed description of preferred embodiments of the invention Fig. 1 schematically shows a vehicle 1 with four wheels 3, but may also comprise several wheels 3. The vehicle 1 may be, for example, a car, a tractor, a truck or a motorhome, etc. The vehicle 1 is illustrated here with two side mirrors 2, but can be equipped with more mirrors such as several side mirrors, transverse mirrors to be able to see in front of the vehicle 1, rearview mirror, wide angle mirrors, short-sighted mirrors, etc.
    The system 13 which will next be described with reference to Fig. 2 can be used in connection with one or more of these mirrors, and be located in the vehicle 1.
    Fig. 2 shows a block diagram of a system 13 for displaying information 18 on a window pane 7 of a vehicle 1. In Fig. 3 a result of the invention is shown, and thus the information 18, here in the form of an illuminated ellipse 18, which appears on the window pane 7 and surrounds the mirror of a pedestrian 8 in an upper mirror 4. The vehicle 1 is here provided with two side mirrors, a lower mirror 5 which may for example be a short-sighted mirror, and an upper mirror 4. The mirrors 4, 5 are attached to the vehicle 1 with some form of bracket 6. The mirrors 4, 5 are usually electrically driven and their respective position relative to the vehicle 1 is thus always known. It is therefore possible to know how much of the environment and which environment will be reflected in the respective mirror 4, 5 by rules which define which environment is reflected in a mirror 4, 5 depending on which angle to the vehicle the mirror 4, 5 is set with, and also characteristics of the mirror 4, 5 such as convex mirror etc. What is reflected in the mirrors 4, 5 can be seen from inside a driver's cab in the vehicle 1 through the window pane 7. In Fig. 3 a view is seen seen from inside the driver's cab.
    As shown in Fig. 2, the system 13 comprises a detector arrangement 14 which is adapted to detect the object 8 in the environment of the vehicle 1 which is reflected in the mirror 4 and / or the mirror 5 (Fig. 3) and to generate an object signal for the object 8. The characteristics for the object 8 comprises at least one of the position 8 of the object 8 in the surroundings, the size of the object 8 and / or what kind of object 8 it is.
    The system 13 further comprises a first analysis unit 15 adapted to receive object signal embodiment. The detector arrangement 14 comprises at least one detector unit comprising a laser detector, a radar detector, and / or a camera detector.
    The detectors may be located along the vehicle 1 to sense distance to the object 8, how large the object 8 is, etc. According to one embodiment, the detector arrangement 14 comprises a second analysis unit 17 which is adapted to match information from one or more detector units according to the rules for which environment. mirrored in the mirror 4 and / or the mirror 5 to obtain a matched image of what is reflected in the mirror 4 and / or the mirror 5 and to detect object 8 in the matched image. In this way, only objects 8 that are reflected in the mirror 4 are detected.
    The rules may, for example, take into account the setting of the mirror 4, such as the angle or angles of the vehicle 1, and / or characteristics such as the convex mirror, and / or the position of the driver 10. The second analysis unit 17 can thus receive information from one or more detector units, but only use a certain part of this information to detect an object 8. The part of the information used is the part which shows information which is also reflected in the mirror 4 and / or the mirror 5. The matched image may thus contain information from one or more detectors, which may partially overlap. According to this embodiment, only object 8 is detected in this matched image.
    The first analysis unit 15 is thus adapted to receive the object signal characteristic of the object 8, and to determine a first object position P1 for the detected object 8 on the mirror 4 based on the characteristic. The characteristics may, for example, include the position of the object 8, the size of the object 8 or simply the position of the object 8 in the matched image. The first analysis unit 15 can analyze where on the mirror 4 a certain object 8 will be mirrored when it is known where the object 8 is located in relation to the vehicle 8 and thus the mirror 4, which characteristic of the mirror 4 is, for example, size and how objects are mirrored in 6 the mirror 4. The first analysis unit 15 can thus be adapted to determine a first object position P1 for the detected object 8 on the mirror 4 also based on the characteristics of the mirror 4. The characteristics of the mirror 4 are predetermined and the relationship of the mirror 4 to the vehicle 1 can, for example, be determined continuously if the mirror 4 is electrically adjustable. If a matched image has been produced, the location of the object 8 on the mirror 4 can be obtained directly through it.
    According to one embodiment, the first analysis unit 15 is adapted to receive a position signal (pg indicating a driver position 11 in the vehicle 1. Alternatively, the driver position 11 can be assumed to be a certain position in the vehicle 1, and is thus already known for the first analysis unit 15. The driver position 11 can then be an approximate main position The first analysis unit 15 is further adapted to determine a second object position P2 on the window pane 7 in a line of sight 12 for the driver 10 between the driver 10 and the mirror 4 based on the driver position 11 and the first object position P1 and to generate a display signal second object position P2 The position signal cp; indicating a driver position 11 in the vehicle 1 can be taken from an already given signal from an internal network in the vehicle 1, and can for instance indicate a height setting on the driver's seat. a detector is used which detects the position or positions of each or both the driver's eyes are located. The position signal averages the positions. The driver position is preferably a position in the same coordinate system as the other positions. Fig. 4 illustrates an example of a line of sight 12 between the driver 10 and a mirror 2. The line of sight 12 can be determined by calculating a line running between the first object position P1 and the driver's position 11. The figure shows a part of a driver's cab 19 on a vehicle 1 with a driver 10 pouring into a steering wheel 9. A driver position 11 in the form of an eye position 11 is marked on the driver's head 10.
    From the vehicle 1, the side mirror 2 is mounted via the holder 6 outside the window pane 7, here a side window. Next to the vehicle 1 is a pedestrian 8.
    The pedestrian 8 is mirrored in the mirror 2, more specifically on a mirror surface 20 on the mirror 2, with which the driver 10 can see the pedestrian 8 from the driver's cab 19. The dashed lines in the figure show schematically how the mirroring is done. The mirroring of the pedestrian 8 in the mirror 2 is marked here as a position on the mirror surface 20, the first object position P1, but can be represented by a number of positions on the mirror surface 20 and in total the whole mirror image of the pedestrian 8, i.e. the object 8, on the mirror surface 20. The driver 10 sees the pedestrian 8 in the line of sight 12 through the window pane 7 of the vehicle 1. The line of sight 12 intersects through the window pane 7 at the second object position P2. The first analysis unit 15 is according to one embodiment adapted to determine a line of sight 12 which starts from at least one of the eyes of the driver 10. By determining a line of sight 12 between the position of the driver 10 and the position P1 of the mirror image of the pedestrian 8 on the mirror surface 20, the intersection point P2 can be determined for the line of sight 12 where it intersects the window pane 7.
    The intersection point P2 can be determined by trigonometry when, for example, the location of the window pane 7 is known relative to the driver's position 11 and the other object position. When the driver 10 looks at the side mirror 2 in the line of sight 12, P1 and P2 are in the same line and P2 is thus superimposed P1.
    The system 13 in Fig. 2 also comprises a display arrangement 16 which is adapted to receive the display signal 18 on the window pane 7 between the driver 10 and the mirror 4 in relation to the second object position P2, so that the information is displayed on the window pane 7 in the driver's line 12 in relation to the object 8 which is mirrored in the mirror 4. According to one embodiment, the first analysis unit 15 is adapted to generate a display signal and also contains instructions or determinations as to what kind of information the display arrangement 16 should superimpose on the window pane 7. The information 18 may for example be adapted to highlight the object 8 Fig. 3 shows the view of the driver 10 from the inside of the cab 19 towards the side mirrors 4, 5 in the line of sight 12 (Fig. 4). Information 18 in the form of an ellipse is here superimposed on the object 8, here a pedestrian 8, and surrounds the mirror image of the pedestrian 8. The ellipse is here superimposed on the mirror image of the pedestrian 8 in relation to the first object position P1. The relation can be a certain distance from P1, or in relation to the whole image of the pedestrian 8 which is reflected on the mirror surface 20. The information 18 is thus displayed on the window pane 7. The display arrangement 16 may for example comprise OLED glass (Organic Light Emitting Diode) in the window pane 7 and control unit for diodes then used, and / or one or more projectors inside the cab 19, for example mounted or mounted on an A-pillar placed opposite the window pane 7 on which the information is to be projected. Alternatively or in combination, reflectors can be used which are controlled so that they reflect the information 18 on the window pane 7 from a source. The source can be, for example, a lamp or the like.
    It is not always certain that the information 18 can be projected or reflected at the same angle to the window pane 7 as the line of sight 12 intersects the window pane 7 with, or directly perpendicular to the window pane 7. An image with the information 18 displayed on the window pane 7 may then have the undesired shape. of a trapezoid.
    The image with the information 18 must then be adjusted according to which angle the line of sight 12 intersects the window pane 7 in relation to which angle the information 18 will be projected or reflected towards the window pane 7. This can be achieved by adjusting the properties of the image with the information 18 to be projected or reflected. the image with the information 18 is projected so that the desired information 18 is displayed. This adjustment or adjustments can be made, for example, by a projector in the display arrangement 16.
    Signals or messages between different devices etc. described here can for example be exchanged through a wired or wireless internal network in the vehicle 1. An example of a network is CAN (Controller Area Network) which enables the exchange of signals and / or messages via a bus. The system 13 may also comprise a positioning unit so that the position of the vehicle is known.
    The system 13 as described includes necessary computer memory 21, 23 as well as processor capacity, for example one or more processor units 22, 24 in the form of, for example, CPUs 22 (Central Processing Unit), to perform the described steps. Fig. 2 shows a first processor unit 22 and a first computer memory 21 in the first analysis unit 15, as well as a second processor unit 24 and a second computer memory 23 in the second analysis unit 17. However, the processor units 22, 24 may be a unit, and the computer memories 21 , 23 may instead be a computer memory. The first computer memory 21 and / or the second computer memory 23 comprises a computer program P, the computer program P comprising program code for causing the first and / or the second processor unit 22, 24 to perform any of the steps according to the method.
    The invention also relates to a computer program product comprising program code stored on a computer readable medium for performing the method steps described above, when the program code is executed on a processor unit 22.
    The invention also comprises a method for displaying information 18 on a window pane 7 of a vehicle 1 with at least one mirror 2, 4, 5 mounted outside the window pane 7 of the vehicle 1. The method will next be explained with reference to the flow chart in Fig. 5. As illustrated in the figure, an object 8 is detected in a first step A1 in the vicinity of the vehicle 1 which is reflected in the mirror 2, 4, 5.
    The method may here comprise the step of matching information from one or more detector units with rules for which environment is shown in the mirror 2, 4, 5 to obtain a matched image of what is shown in the mirror 2, 4, 5, wherein the step of detecting a object 8 includes detecting object 8 in the matched image. How this matching can be performed has been described in connection with the system 13 above.
    Then, a first object position P1 of the detected object 8 on the mirror 2, 4, 5 is determined based on the characteristics of the object 8 (A2). The characteristics of the object 8 include at least one of the position of the object 8 in the environment, the size of the object 8 and / or what kind of object 8 it is. According to one embodiment, the method comprises determining a first object position P1 for the detected object 8 on the mirror 2, 4, 5 also based on the characteristics of the mirror 2, 4, 5. A driver position 11 for the driver 10 in the vehicle 1 is also determined in a step A3. Based on the driver position 11 and the first object position P1, a second object position P2 on the window pane 7 is determined in a line of sight 11 of the driver 10 between the driver 10 and the mirror 2, 4, 5. The line of sight 12 is, for example, from at least one of the driver's eyes. Next, information is displayed on the window pane 7 between the driver 10 and the mirror 2, 4, 5 in relation to the second object position P2, so that the information is displayed on the window pane 7 in the driver's line 12 in relation to the object 8 mirrored in the mirror 2.
    According to one embodiment, the method of displaying information 18 on the window pane 7 also includes based on instructions on what kind of information 18 is to be displayed on the window pane 7. the instructions may for example include distance to the second object position P2, or a special shape of the information such as rectangular, circular etc. The information 18 is preferably adapted to highlight the object 8.
    The present invention is not limited to the above-described preferred embodiments. Various alternatives, modifications and equivalents can be used.
    The above embodiments are therefore not to be construed as limiting the scope of the invention as defined by the appended claims.
    权利要求:
    Claims (18)
    [1]
    A system (13) for displaying information (18) on a window pane (7) of a vehicle (1) with at least one mirror (2, 4, 5) mounted outside the window pane (7) of the vehicle (1), k ä A sign that the system (13) comprises: - a detector arrangement (14) adapted to detect an object (8) in the vicinity of the vehicle (1) which is reflected in said mirror (2, 4, 5) and to generate an object signal - a first analysis unit (15) adapted to receive said object signal and to determine a first object position P1 of the detected object (8) on said mirror (2, 4, 5) based on the characteristics of the object (8); the first analysis unit (15) is further adapted to determine a second object position P2 on said window pane (7) in a line of sight (12) of the driver (10) between the driver (10) and the mirror (2, 4, 5) based on a driver position (11) in the vehicle (1) and said first object position P1 and generating a display signal of said second object position P2; - a display arrangement (16) adapted to receive said display signal (pg), and to display the information (18) on the window pane (7) between the driver (10) and the mirror (2, 4, 5) in relation to said second object position P2 , so that the information is displayed on the window pane (7) in the driver's line of sight (12) in relation to the object (8) reflected in the mirror (2, 4, 5).
    [2]
    The system (13) of claim 1, wherein the first analysis unit (15) is adapted to generate a display signal cpg which also contains instructions on what kind of information the display arrangement (16) is to display on the window pane (7).
    [3]
    A system (13) according to claim 1 or 2, wherein the first analysis unit (15) is adapted to receive a position signal (pg indicating said driver position (11).
    [4]
    The system (13) of claim 3, wherein the first analysis unit (15) is adapted to determine a line of sight (12) emanating from at least one of the eyes of the driver (10).
    [5]
    A system (13) according to any one of the preceding claims, wherein the detector arrangement (14) comprises at least one detector unit comprising a laser detector, a radar detector, and / or a camera detector.
    [6]
    The system (13) of claim 5, wherein the detector arrangement (14) comprises a second analysis unit (17) adapted to match information from one or more detector units with rules for which environment is reflected in the mirror (2, 4, 5), to obtain a matched image of what is reflected in the mirror (2, 4, 5), and to detect objects (8) in the matched image.
    [7]
    System (13) according to any one of the preceding claims, wherein said characteristic of the object (8) comprises at least one of the position of the object (8) in the environment, the size of the object (8) or what kind of object (8) it is.
    [8]
    A system (13) according to any one of the preceding claims, wherein the first analysis unit (15) is adapted to determine a first object position P1 for the detected object (8) on said mirror (2, 4, 5) also based on the mirror (2). , 4, 5) characteristic.
    [9]
    A system (13) according to any one of the preceding claims, wherein said information (18) is adapted to highlight the object (8).
    [10]
    A display method for displaying information (18) on a window pane (7) of a vehicle (1) with at least one mirror (2, 4, 5) mounted outside the window pane (7) of the vehicle (1), the method comprises the steps of - detecting an object (8) in the vicinity of the vehicle (1) which is reflected in said mirror (2, 4, 5); 13 - determining a first object position P1 for the detected object (8) on said mirror (2, 4, 5) based on the characteristics of the object (8); - determining a driver position (11) for the driver (10) in the vehicle (1); - determining a second object position P2 on said window pane (7) in a line of sight (11) of the driver (10) between the driver (10) and the mirror (2, 4, 5) based on said driver position (11) and first object position P1; - display the information on the window pane (7) between the driver (10) and the mirror (2, 4, 5) in relation to said second object position P2, so that the information is displayed on the window pane (7) in the driver's line of sight (11) in relation to the object ( 8) which is reflected in the mirror.
    [11]
    A method according to claim 10, which comprises displaying information (18) on the window pane (7) also based on instructions on what kind of information (18) is to be displayed on the window pane (7).
    [12]
    A method according to claim 10 or 11, wherein said line of sight (12) is from at least one of the eyes of the driver (10).
    [13]
    A method according to any one of claims 10 to 12, comprising the step of matching information (18) from one or more detector units with rules for which environment is reflected in the mirror (2, 4, 5), to obtain a matched image of that which is reflected in the mirror (2, 4, 5), wherein the step of detecting an object (8) comprises detecting objects (8) in the matched image.
    [14]
    A method according to any one of claims 10 to 13, wherein said characteristic of the object (8) comprises at least one of the position of the object (8) in the environment, the size of the object (8) or what kind of object (8) it is.
    [15]
    A method according to any one of claims 10 to 14, comprising determining a first object position P1 of the detected object (8) on said mirror (2, 4, 5) also based on the characteristics of the mirror (2, 4, 5). 14
    [16]
    A method according to any one of claims 10 to 15, wherein said information (18) is adapted to highlight the object (8).
    [17]
    Computer program (P) in information display systems, wherein said computer program (P) comprises program code for causing a processor unit (22, 24) to perform the steps according to any one of claims 10-16.
    [18]
    A computer program product comprising program code stored on a computer readable medium for performing the method steps according to any one of claims 10 to 16, when said program code is executed on a processor unit (22, 24).
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    同族专利:
    公开号 | 公开日
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    引用文献:
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    DE102019132630A1|2019-12-02|2021-06-02|Bayerische Motoren Werke Aktiengesellschaft|Display system for a vehicle|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350386A|SE536984C2|2013-03-27|2013-03-27|System and method for displaying information on a window pane a vehicle with a mirror mounted outside the pane|SE1350386A| SE536984C2|2013-03-27|2013-03-27|System and method for displaying information on a window pane a vehicle with a mirror mounted outside the pane|
    DE112014001072.3T| DE112014001072T5|2013-03-27|2014-03-20|A system and method for presenting information on a window of a vehicle having at least one mirror|
    PCT/SE2014/050347| WO2014158081A1|2013-03-27|2014-03-20|A system and a method for presenting information on a windowpane of a vehicle with at least one mirror|
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