Proximity detection for a display and / or operating device for a vehicle

Abstract

Installation unit (10) for a vehicle, comprising - a first wall (12) with a first side surface (14), - wherein the first side surface (14) has a display and / or operating device (16), - a second wall (22) having a second side surface (24) adjacent to and projecting from the first side surface (14), the first side surface (14) and the second side surface (24) together defining an angle α of substantially 90°, - wherein the second side surface (24) has a first proximity sensor (26), and - an evaluation and control unit (34) which is designed to determine a distance of an object to be detected from the display and / or operating device (16) based on a measurement signal of the first proximity sensor (26), - wherein the display and / or operating device (16), controlled by the evaluation and control unit (34), can be selectively operated in one of several operating modes and can be transferred into one of the several operating modes depending on the determined distance of the object to be detected from the display and / or operating device (16).

Description

[0001] The present invention relates to an installation unit for a vehicle, with proximity detection for a display and / or operating device of the vehicle.

[0002] The importance of display and / or control devices in modern vehicles is constantly increasing. Display devices are used to provide the driver with relevant information regarding individual vehicle components, such as driving speed, temperature, etc. Control devices, on the other hand, are used to allow the driver or vehicle occupants to adjust operating parameters for individual vehicle components. Combined display and control devices are also commonplace, allowing the driver or vehicle occupants to both display information and enter operating parameters.

[0003] Display and / or operating devices are generally known. In particular, the publications WO 2014 / 076 299 A2, DE 20 2016 106 395 U1, US 8 892 299 B2, DE 10 2016 104 695 A1, and US 2014 / 0 368 029 A1 show display and / or operating devices in various embodiments.

[0004] As the number of controllable vehicle components in modern vehicles, especially in mid-size and luxury vehicles, continues to grow, so does the number of control devices required in vehicles. The number of display devices in modern vehicles is also steadily increasing, as advances in vehicle technology mean that more and more relevant information about the vehicle and the external environment is available, and the display of relevant information is desirable.

[0005] For efficient interaction between the user and the display and / or control device, it is desirable to ensure reliable detection of a user's hand approaching the display and / or control device. For various applications, it may be particularly desirable to detect the user's hand as early as possible, especially when the hand has not (yet) touched the display and / or control device, which is necessary, for example, for gesture recognition.

[0006] By detecting that the user's hand is approaching the display and / or control device, the device can change operating mode accordingly. For example, the display and / or control device can be switched from a deactivated mode to an activated mode as soon as the user moves their hand near the display and / or control device. When the hand is subsequently removed from the display and / or control device, it can be switched back to the deactivated mode or to a power-saving mode.

[0007] For example, it is possible to significantly reduce the energy consumption of the individual display and / or control devices in the vehicle, as the display and / or control devices are only activated when they are actually needed.

[0008] The object of the present invention is therefore to provide an installation unit with a display and / or operating device which can reliably detect an object approaching the display and / or operating device in a simple manner, even before the object comes into contact with the display and / or operating device.

[0009] To achieve the above-mentioned object, the invention proposes an installation unit for a vehicle having the features of claim 1. Individual embodiments of the invention are the subject of the subclaims.

[0010] The installation unit according to the invention makes it possible, in particular, to detect the approach of an object, for example a hand, even before it comes into contact with the display and / or operating device, and to control the operating mode of the display and / or operating device depending on the approaching object. This makes it possible, for example, to activate the display and / or operating device only when the user actually needs it. This makes it possible, in particular, to reduce energy consumption in the vehicle, while allowing the user to access the display and / or operating device at any time as needed.

[0011] A further advantage of the installation unit according to the invention is that the proximity sensor can be arranged separately from the display and / or operating device. This allows, for example, the use of sensor electrodes that can be mounted at a sufficient distance from grounded parts of the vehicle. Compared to sensor electrodes arranged in or near a display, such positioning options offer a particularly interference-free sensor measuring range, which thus has a correspondingly high level of quality.

[0012] The installation unit can be installed in a vehicle, preferably in a vehicle door. When installed, the first side surface and the second side surface are oriented toward the vehicle interior.

[0013] The display and / or operating device can be designed in particular as a display or as an illuminated input key.

[0014] The proximity sensor in the sense of the present invention is a sensor that is capable of measuring the distance to an object to be detected.

[0015] The proximity sensor can detect an approaching object in a detection range predefined by the sensor. The detection range is the area in which a proximity sensor can reliably detect the object to be detected. Outside the detection range of a proximity sensor, the object to be detected can only be detected inaccurately or not at all. Depending on the type of proximity sensor, the detection range can be hemispherical, flat, or one-dimensional. For example, the detection range of a proximity sensor can be flat and include an area that runs orthogonal to the second side surface and borders the second side surface. This area can be limited to 5 x 10 cm, for example. The approaching object can also move away from the sensor again, whereby the distance of the object is detected by the proximity sensor in the same way as the approach of the object.

[0016] The first side surface, in and / or on and / or upon which the display and / or operating device is arranged, forms an obtuse, acute, or right angle with the second side surface, in and / or on and / or upon which the first proximity sensor is arranged. The two side surfaces face each other, and the first proximity sensor faces a detection area in which the object to be detected is expected.

[0017] The display and / or operating device of the installation unit according to the invention can be used, for example, to display vehicle-related information or to enter control parameters of individual vehicle components, such as the windows, mirrors, seats or vehicle lighting.

[0018] Furthermore, the installation unit according to the invention provides that the angle between the first side surface and the second side surface is substantially 90°. The first proximity sensor can have a flat detection area that runs orthogonal to the second side surface and parallel to the first side surface and to a surface of the display and / or operating device facing the user. This allows the penetration of a body to be detected into a surface parallel to the display and / or operating device to be detected.

[0019] In a further embodiment of the installation unit according to the invention, it can be provided that the first proximity sensor has a detection area that is arranged above the first side surface. If, for example, the installation unit is installed in a vehicle door, it can be provided that the first side surface with the display and / or operating device is arranged in an armrest of the vehicle door and the second side surface with the first proximity sensor is arranged in a vertically running inner door wall, wherein the first proximity sensor monitors an area above the display and / or operating device. In this way, the detection of a hand that approaches the display and / or operating device from above is enabled. For example, it can be provided that the first proximity sensor is arranged 3 cm or 5 cm above the first side surface.

[0020] Furthermore, in the installation unit according to the invention, it is provided that the display and / or operating device, controlled by the evaluation and control unit, can be operated selectively in one of several operating modes and can be transferred into an operating mode depending on the determined distance of the object to be detected from the display and / or operating device and / or the first proximity sensor.

[0021] In particular, it can be provided that the display and / or operating device has a lighting and / or backlighting device, and that the operating modes comprise the following states: activated lighting and / or backlighting unit, deactivated lighting and / or backlighting unit, sleep mode with reduced energy consumption compared to normal operation, in particular by deactivating the lighting and / or backlighting device and / or by deactivating further components of the display and / or operating device or by switching one or more of the said components into a standby mode.

[0022] By defining different operating modes, the individual needs of the driver can be taken into account and energy consumption can be optimized at the same time. In particular, the lighting and / or backlighting unit of the display and / or operating device can be activated when the user brings their hand close to the display and / or operating device. This allows the user to signal to the evaluation and control unit of the installation unit according to the invention that they wish to operate the display and / or operating device or read information from it. If the user subsequently removes their hand from the display and / or operating device, the evaluation and control unit recognizes that the user does not currently require the display and / or operating device. In this case, the lighting and / or backlighting unit can be deactivated to conserve energy resources in the vehicle.It can also be provided that the lighting and / or backlighting unit is transferred to a sleep mode, from which the lighting and / or backlighting unit can be returned to the activated state within a very short time. This ensures a short response time of the lighting and / or backlighting unit, so that the user does not have to wait an unnecessarily long time for the lighting and / or backlighting unit to reactivate.

[0023] Furthermore, the installation unit according to the invention can be provided so that the lighting and / or backlighting unit of the display and / or operating device can be switched from the activated state to the deactivated state or from the deactivated state to the activated state by the evaluation and control unit depending on the determined distance of the object from the display and / or operating device and / or the proximity sensor. Thus, if a user's hand is inserted into the detection range of the first proximity sensor, the lighting and / or backlighting unit can be activated, while it is deactivated again as soon as the hand leaves the detection range of the proximity sensor. In this way, both the approach of the hand to the display and / or operating device and the subsequent removal of the hand from the display and / or operating device can each be linked to a control event.Likewise, it can be provided that the lighting and / or backlighting unit is transferred to sleep mode as soon as the hand leaves the detection range of the proximity sensor, while the lighting and / or backlighting unit is transferred from sleep mode to activated mode as soon as the hand enters the detection range.

[0024] In a further preferred embodiment of the installation unit according to the invention, it can be provided that the first side surface is oriented substantially horizontally and / or that the second side surface is oriented substantially vertically. A horizontal orientation of the first side surface can lead to improved readability of the display device arranged in the first side surface. For example, particularly good readability can be ensured if the first side surface with a display device is arranged in a substantially horizontally oriented surface of the armrest of a vehicle door or, alternatively, in a substantially horizontally oriented surface of the center armrest of a vehicle.The vertical arrangement of the second side surface, which includes the first proximity sensor, has the advantage that the proximity sensor is better protected from moisture, and in particular from rain, which can reach the armrest when the vehicle door is open. Moisture that reaches the proximity sensor can drip off more easily with a vertical arrangement of the second side surface or the proximity sensor than, for example, with a horizontal arrangement of the second side surface. If the first side surface is arranged in a horizontal surface of the armrest of a vehicle door, the second side surface can be arranged in a vertical side surface of the door's inner wall.

[0025] However, the installation unit can also be arranged in a different position in the vehicle, for example, in a center armrest (e.g., between the front vehicle seats or on the rear seat). In this case, the second side surface can be arranged in a vertical surface protruding from the center armrest (e.g., in a raised rear area of ​​a front center armrest or in the backrest of the rear seat in the case of a rear center armrest).

[0026] In a preferred embodiment of the installation unit according to the invention, it can further be provided that the display and / or operating device is designed as a touchscreen. A touchscreen is advantageous in that it comprises both a display function and an operating function. Both functions are integrated into a single device, whereby, in particular, the information can advantageously be displayed in high resolution using a touchscreen. Furthermore, with a touchscreen, the user can conveniently enter inputs on the display itself, and no additional mechanical elements are required.

[0027] Furthermore, in a preferred embodiment of the installation unit according to the invention, a second proximity sensor can be provided. By using two or more proximity sensors, different properties of different proximity sensors can be combined and additional functions can be integrated into the installation unit according to the invention.

[0028] In one embodiment of the installation unit according to the invention, it can be provided that the installation unit has two proximity sensors and the two proximity sensors together represent a sensor unit for gesture recognition for the recognition of predefined gestures of the object to be detected.

[0029] In particular, it can be provided that the first proximity sensor and the second proximity sensor are arranged together in and / or on and / or on the same side surface. For example, it can be provided that the two proximity sensors are arranged next to one another and at a distance from one another and that the movement of a hand that moves away from one proximity sensor and approaches the other proximity sensor can be detected. In this case, by evaluating the signals generated by both proximity sensors, conclusions can be drawn about the movement and in particular the direction of movement of the hand. In this case, it can be provided, for example, that a wiping movement of the hand in a first direction is linked to a first control command, while the wiping movement of the hand in a second direction, which is opposite to the first direction, is linked to a second control command.It can thus be provided that the user can activate the display and / or operating device by a wiping movement in a first direction, while he can deactivate it by a wiping movement in a direction opposite to the first direction.

[0030] Furthermore, the installation unit according to the invention can be provided with the second proximity sensor integrated into the display and / or operating device. In this case, the display and / or operating device can, in particular, also comprise a display unit with a proximity sensor, the proximity sensor of which is used as the second proximity sensor of the installation unit. Thus, no additional second proximity sensor is required, since the existing proximity sensor of the display unit is used.

[0031] In a further embodiment of the installation unit according to the invention, it can be provided that the first proximity sensor is arranged in and / or on and / or on the second side surface, and the second proximity sensor is arranged in and / or on and / or on the first side surface. Such an arrangement of two proximity sensors in different side surfaces can be used to have the first proximity sensor monitor the intrusion of an object into a first detection area, while the second proximity sensor monitors a second detection area. This can serve, for example, to detect objects even before they enter the first detection area monitored by the first proximity sensor.In this way, for example, the display and / or control device can be transferred from deactivated mode to sleep mode when an object enters an area outside the immediate vicinity of the display and / or control device, and only transferred from sleep mode to activated mode when the object enters an area in the immediate vicinity of the display and / or control device. Such step-by-step control of the display and / or control device can achieve energy savings while simultaneously ensuring a high response speed of the display and / or control device.

[0032] In one embodiment of the installation unit according to the invention, it can be provided that the first proximity sensor and the second proximity sensor have different detection ranges. It can be provided that the detection range of the first proximity sensor is designed for the detection of objects in the immediate vicinity of the display and / or operating device, while the detection range of the second proximity sensor is designed for the detection of an object at a greater distance. In this way, the first proximity sensor can be used to monitor a detection range in the immediate vicinity of the display and / or operating device, while the second proximity sensor can be used to monitor a detection range that includes greater distances from the display and / or operating device.

[0033] Furthermore, the installation unit according to the invention can be designed for the first and / or, if present, the second proximity sensor to be a capacitive, inductive, ultrasonic, or optical proximity sensor. For example, the proximity sensor can be designed as a copper electrode or copper strip. Designing the proximity sensor as a copper electrode or copper strip enables a simple, cost-effective, and error-resistant sensor.

[0034] Other sensor types can also be used in the built-in unit according to the invention, such as CMOS sensors and TOF sensors. If at least two sensors are provided in the built-in unit according to the invention, it can be provided in particular that at least two different sensor types are used. By combining different sensor types, the advantages of the individual sensors can be used for the built-in unit according to the invention. For example, it can be provided that the first proximity sensor is designed as a copper strip that is arranged in the second side surface and serves to detect an object that is a few centimeters away from the display and / or operating device, while the second proximity sensor is designed as an optical proximity sensor that is arranged in the first side surface and serves to detect an object at a distance of a few decimeters.

[0035] To achieve the object according to the invention, a door interior panel for a vehicle door is further provided, with - an armrest; - a side wall; and - an embodiment of the above-described installation unit according to the invention is proposed, wherein the first wall of the installation unit forms part of an armrest and the second wall of the installation unit forms part of a side wall and wherein the first proximity sensor is arranged in the door interior panel above the armrest.

[0036] Alternatively, the installation unit according to the invention can be installed in a center armrest. The display and / or operating device can be installed in a horizontally oriented surface of the center armrest. In this case, the first proximity sensor can be arranged in a side surface protruding from said surface of the center armrest.

[0037] Furthermore, the installation unit according to the invention can be arranged in a center armrest in the rear of a vehicle. The display and / or operating device can be arranged in a horizontal surface of the center armrest, while the proximity sensor is arranged in a surface of the backrest of the rear seat of the vehicle.

[0038] In a further advantageous embodiment of the invention, the area above the device can be examined for the presence, direction of movement, and position of an object with a higher resolution than with just one or two sensors. Each proximity sensor is assigned a region in the detection space in front of the device. This allows gestures to be captured and recognized with sufficiently high resolution.

[0039] The invention is explained in more detail below using several exemplary embodiments with reference to the drawings. In detail: Fig. 1 a perspective view of a first embodiment of the installation unit according to the invention with a proximity sensor, Fig. 2 a perspective view of a second embodiment of the installation unit according to the invention with two proximity sensors arranged in different side surfaces, and Fig. 3 a perspective view of a third embodiment of the installation unit according to the invention with two proximity sensors arranged in the same side surface.

[0040] In the Fig. 1 shows a first embodiment of the installation location of an installation unit 10 according to the invention in a vehicle. As shown in Fig. 1, the installation unit 10 is installed in the driver's door of a vehicle. The installation unit 10 comprises a display and / or operating device 16 and a first proximity sensor 26, wherein the display and / or operating device 16 is arranged in a first side surface 14 of a first wall 12 and the first proximity sensor 26 is arranged in a second side surface 24 of a second wall 22. In the illustrated embodiment, the first side surface 14 forms the upper side of an armrest 30 of the vehicle door, while the second side surface 24 forms the front side of the door trim wall 32 facing the vehicle interior. In the illustrated embodiment, the two side surfaces 14, 24 together form an angle α. This angle α is substantially equal to 90° in the illustrated embodiment.

[0041] The Fig. The display and / or operating device 16 of the installation unit 10 shown in Figure 1 comprises a display 18, which can be designed in particular as a touchscreen. The display 18 has a display surface 19 and a display frame 20 surrounding the display surface 19. As shown in Figure Fig. As can be seen in Figure 1, the display 18 is arranged in a substantially horizontal plane (x / y plane), with the first proximity sensor 26 arranged in a substantially vertical plane (y / z plane). The first proximity sensor 26 is arranged above the display 18, so that the sensor 26 can monitor a detection area above the display 18.

[0042] The first proximity sensor 26 can, in particular, be designed as a capacitive, inductive, ultrasonic, or optical proximity sensor. It can also be provided that the first proximity sensor 26 comprises a plurality of sensor elements (not shown in the figures). For example, it can be provided that the proximity sensor 26 is designed as an optical proximity sensor and has an LED or laser array as well as a photodiode array. In this way, the distance of an object to be detected can be detected by measuring the time of flight or by evaluating the light scattered by the object to be detected by the photodiode array. The light-emitting diodes can be arranged in the second side wall, while the light-receiving diodes can also be arranged there or in the display.Alternatively, the light-emitting diodes can be located in the display, while the light-receiving diodes are located in the second side panel. Finally, the proximity sensor can also be implemented as a camera system (e.g., a TOF camera).

[0043] The proximity sensor 26 can in particular be designed to monitor a detection area that is aligned substantially parallel to the display surface 19, i.e. in the x / y plane. As soon as an object, in particular a hand or the fingers of a user's hand, enter this detection area, an evaluation and control unit 34 of the installation unit 10 can generate a control signal that, for example, activates the display 18 of the display and / or operating device 16. Upon subsequent removal of the detected hand (e.g. after the touchscreen has been actuated), the evaluation and control unit 34 of the installation unit 10 can correspondingly generate a control signal that deactivates the display 18 of the display and / or operating device 16 again. In this way, the energy consumption of the installation unit 10 can be significantly reduced.Alternatively, the proximity sensor 26 can also detect a hand gesture movement of the operator, which is then converted by the evaluation and control unit 34 into an operating command and the corresponding control of the vehicle component (symbolically indicated at 36).

[0044] In Fig. Figure 2 shows a second embodiment of the installation unit 10 according to the invention, wherein in this embodiment two proximity sensors 26, 28 are provided. The first proximity sensor 26 is arranged in the inner door wall 32 and the second proximity sensor 28 is arranged in the armrest 30 of the vehicle door and, in this embodiment, next to the display 18. When using two proximity sensors 26, 28, it can be provided that different proximity sensors 26 are used, which in particular have different detection ranges. For example, it can be provided that the first proximity sensor 26 is designed to detect objects in the immediate vicinity of the display surface 19, while the second proximity sensor 28 has a larger detection range, so that objects that are, for example, 10 cm or more away from the display surface 19 can also be detected.Furthermore, by arranging the proximity sensors 26, 28 on different side surfaces 14, 24, which are aligned essentially orthogonally to one another, detection areas that are also aligned orthogonally to one another can be monitored. In this way, the detection areas assigned to the proximity sensors 26, 28 can be monitored and, for example, object movements from one detection area to another can be detected (gesture recognition). To improve the resolution of gesture recognition, more proximity sensors than the two previously described can of course be provided.

[0045] Finally, in the Fig. 3 shows a third embodiment of the installation unit 10 according to the invention, wherein the installation unit 10 according to this embodiment comprises two proximity sensors 26, 28 arranged in the same plane. The two proximity sensors 26, 28 are arranged in this embodiment in a substantially vertical plane (y / z plane). The use of a plurality of proximity sensors 26, 28 enables the detection of a movement of the object to be detected. In particular, the two in the Fig. 3, the proximity sensors 26, 28 detect a swiping movement of a hand in the y-direction. If, for example, a user's hand or one or more fingers of a hand are moved in the positive y-direction, specifically within the detection range of the proximity sensors 26, 28, the movement of the object to be detected in the y-direction can be determined by evaluating the measurement signals output by the two proximity sensors 26, 28. If the object to be detected moves toward the proximity sensors 26, 28 in the positive y-direction, both proximity sensors 26, 28 detect an approach of the object, while the first proximity sensor 26 determines a shorter distance to the object to be detected than the second proximity sensor 28.If the object to be detected moves further in the positive y-direction between the first proximity sensor 26 and the second proximity sensor 28, the first proximity sensor 26 detects a distance of the object to be detected, while the second proximity sensor 28 detects an approach of the object. If the object to be detected moves further in the positive y-direction past the second proximity sensor 28, both proximity sensors 26, 28 detect a distance of the object to be detected, whereby the distance detected by the second proximity sensor 28 is greater than the distance detected by the first proximity sensor 26. In this way, the swiping movement of a user's hand can be detected. Furthermore, it can be provided that the two proximity sensors 26, 28 have a plurality of optical sensor elements that enable a measurement of the position of the object in the y-direction with increased resolution.For this purpose, it can be provided, for example, that each of the two proximity sensors 26, 28 has a plurality of LEDs or laser diodes, each in combination with photodiodes, which serve to measure the distance of an object in a predefined detection area. In the . Fig. In the embodiment shown in Figure 3, for example, it can be provided that the display 18 is deactivated by a swiping movement of a hand in the negative y-direction, while it is reactivated by a swiping movement of the hand in the positive y-direction. In this way, the user can easily turn the display on and off without touching the display surface 19.

[0046] For the above general description of the invention and for the specific description with reference to the drawing, it applies that the installation unit, if it is equipped with a touch operating functionality, can or should have haptic feedback for the tactile confirmation of a valid operation of the display. LIST OF REFERENCE SYMBOLS 10 installation unit 12 first wall 14 first side surface 16 Display and / or control device 18 Display 19 Display surface 20 display frames 22 second wall 24 second side surface 26 first proximity sensor 28 second proximity sensor 28' second proximity sensor 30 armrest 32 door inner wall 34 Evaluation and control unit 36 vehicle components α Angle between the two side surfaces

Claims

[1] Installation unit (10) for a vehicle, comprising - a first wall (12) with a first side surface (14), - wherein the first side surface (14) has a display and / or operating device (16), - a second wall (22) having a second side surface (24) adjacent to and projecting from the first side surface (14), the first side surface (14) and the second side surface (24) together defining an angle α of substantially 90°, - wherein the second side surface (24) has a first proximity sensor (26), and - an evaluation and control unit (34) which is designed to determine a distance of an object to be detected from the display and / or operating device (16) based on a measurement signal of the first proximity sensor (26), - wherein the display and / or operating device (16), controlled by the evaluation and control unit (34), can be selectively operated in one of several operating modes and can be transferred into one of the several operating modes depending on the determined distance of the object to be detected from the display and / or operating device (16). [2] Installation unit (10) according to claim 1, characterized by that the first proximity sensor (26) has a detection area which is arranged above the first side surface (14). [3] Installation unit (10) according to claim 1 or 2, characterized bythat the display and / or operating device (16) has a lighting and / or backlighting device, and that the operating modes comprise the following states: activated lighting and / or backlighting unit, deactivated lighting and / or backlighting unit, sleep mode with reduced energy consumption compared to normal operation, in particular by deactivating the lighting and / or backlighting device and / or by deactivating or switching to a standby mode of other components of the display and / or operating device (16). [4] Installation unit (10) according to claim 3, characterized by that the lighting and / or backlighting device of the display and / or operating device (16) can be converted from an activated state to a deactivated state or from the deactivated state to the activated state by the evaluation and control unit (34) depending on the determined distance of the object to the display and / or operating device (16). [5] Installation unit (10) according to one of claims 1 to 4, characterized by that the first side surface (14) is oriented substantially horizontally and / or that the second side surface (24) is oriented substantially vertically. [6] Installation unit (10) according to one of claims 1 to 5, characterized by that the display and / or operating device (16) is designed as a touch-sensitive display (18). [7] Installation unit (10) according to one of claims 1 to 6, characterized by a second proximity sensor (28). [8] Installation unit (10) according to claim 7, characterized by that the first proximity sensor (26) and the second proximity sensor (28) are arranged together in and / or on and / or on the same side surface (14). [9] Installation unit (10) according to claim 7, characterized by that the second proximity sensor (28) is integrated into the display and / or operating device (16). [10] Installation unit (10) according to claim 7, characterized by that the first proximity sensor (26) is arranged in and / or on and / or on the second side surface (24) and the second proximity sensor (28) is arranged in and / or on and / or on the first side surface (14). [11] Installation unit (10) according to one of claims 7 to 10, characterized by that the first proximity sensor (26) and the second proximity sensor (28) have different detection ranges [12] Installation unit (10) according to one of claims 1 to 11, characterized by that the first and / or, if present, the second proximity sensor (26, 28) is designed as a capacitive, inductive, ultrasonic or optical proximity sensor. [13] Interior door panel for a vehicle door, with - an armrest (30), - an inner door wall (32) and - a built-in unit (10) according to one of claims 1 to 12, wherein the first wall (12) of the built-in unit (10) forms part of the armrest (30) and the second wall (22) of the built-in unit (10) forms part of the inner door wall (32), and wherein the first proximity sensor (26) is arranged in the inner door panel above the armrest (30).

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