The present invention relates to a device for exchanging information between at least one operator and a machine.
Although applicable to any machines, the present invention is explained in greater detail, by way of example, in relation to exchanging information for controlling and monitoring at least one aircraft cabin system.
In the aircraft cabin, touchscreens have become popular for operating relatively complex systems such as a cabin management system, for example CIDS, or an in-flight entertainment system. Touchscreens generally consist of an LCD screen in conjunction with a transparent, resistive or capacitive touch film. This combination makes it possible to display freely configurable menus and operating elements. One example of this is the flight attendant panel of which the operating interface is disclosed in DE 101 00 273 A1.
There are a number of limitations inherent to any two-dimensional operating interface as a result of the construction thereof.
This solution has limitations in so far as it is not always clear which elements on the screen are for display purposes and which ones can actually be operated or changed. This necessitates strict rules on the appearance of the individual elements, in the form of a “style guide”.
Two-dimensional interfaces also require the user to have some degree of imagination, for example when continuing down lists using scroll bars. Further, the screen must not be overloaded with content. In spite of any increase in the scope of operation, the operator must retain an overview. Using a larger display surface also fails to solve this problem. It should be easy for the viewer to find important events and information.
Touchscreens have some unfavourable properties. Thus, the touch film rapidly becomes dirty as a result of contact with fingers, in particular by way of grease depositions. This is unhygienic and also reduces the brightness and legibility of the display, which are already made worse by the touch film itself. Depending on the construction, air pressure changes and static charge may also reduce the functionality of the touchscreen. Capacitive touchscreens are highly suited to recognising gestures, but often cannot be operated with gloves. Moreover, for reasons of robustness the film carrier is often made of glass, and this results in additional weight.
A recent trend in the field of display technology involves three-dimensional displays, which are provided as a glasses-based display having shutter glasses or polarising filter glasses, but also as a glasses-free autostereoscopic display. However, if input is to be made possible in this case in a manner analogous to a two-dimensional touchscreen, conventional touch films are no longer suitable for this type of display, since they can only detect inputs on the display surface. However, for the three-dimensional operating interface, the input has to be provided at precisely the location in the space in front of the display where the viewer perceives the operating element.
Camera systems are currently conventional for detecting gestures in three dimensions, but because of the small distance from the display surface, they are unsuitable when it is desired to integrate the sensor system into the same housing. Operation in a darkened cabin poses a further problem. In this case, cameras do not provide the necessary precision and reliability.
DE 10 2007 060 346 A1, for example, discloses a method for ultrasound travel time measurement, in particular for 2D or 3D localisation of objects.
One idea of the present invention is therefore to provide an improved device for exchanging information between at least one operator and a machine.
Accordingly, a device for exchanging information between at least one operator and a machine is provided which comprises the following components: a display means, which is set up so as to display information from the machine to the at least one operator visually and three-dimensionally; and an input means, which is set up so as to detect the position of objects, preferably the position of the fingers of at least one operator, in three-dimensional space in relation to the display means, in a time-resolved manner by optical and/or acoustic and/or electromagnetic measurement methods, and to detect at least one operator input from the detected progression over time in accordance with at least one predetermined criterion and to pass said operator input on to the machine.
Accordingly, a method for exchanging information between at least one operator and a machine is further provided, comprising the following method steps: displaying information from the machine to the at least one operator by means of a display means, the display being visual and three-dimensional; detecting the position of objects, preferably the position of the fingers of at least one operator, by means of an input means by optical and/or acoustic and/or electromagnetic measurement methods, in three-dimensional space with respect to the display means, the detection being time-resolved; detecting at least one operator input from the detected progression over time of the position of objects in accordance with at least one predetermined criterion; and passing the at least one detected operator input on to the machine.
Therefore, one advantage of the invention is that a complete operating interface is provided, analogously to the two-dimensional touchscreen, which can detect gestures in the three-dimensional space in front of the display during operation.
Advantageous configurations and improvements may be found in the dependent claims.
In the following, the invention is explained in greater detail by way of embodiments, with reference to the appended schematic drawings, in which:
a) is a schematic side view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with the first embodiment;
b) is a schematic plan view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with the first embodiment;
a) is a schematic side view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a third embodiment;
b) is a schematic plan view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with the third embodiment;
a) is a schematic side view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a fourth embodiment;
b) is a schematic plan view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with the fourth embodiment;
a) is a schematic side view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a fifth embodiment;
b) is a schematic plan view of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with the fifth embodiment;
In the drawings, like reference signs denote like or functionally equivalent components unless stated otherwise.
In
In
In accordance with the first embodiment of the device according to the invention, the display means 100 is an autostereoscopic glasses-free 3D display, at least one aircraft cabin system being controlled and monitored by way of the exchange of information.
Conventional menus are generally configured as lists of selectable items, which are orientated either horizontally or vertically. If there are more selectable items available than will fit on the screen surface, corresponding scrolling is carried out, generally indicated by way of a scroll bar or using arrow displays. Thus, the individual system menus S1-S8 are selected at the flight attendant panel by way of a sequence of this type of buttons displayed in a horizontal arrangement on the lower edge of the screen. The buttons which are not shown can be scrolled to by way of two arrow buttons on the left and right edges of the screen. Once the respective button representing the system menu has been actuated, the associated aircraft fuselage is displayed in a vertical position on the screen.
For the three-dimensional display approach in
By way of the 3D effect, the system menus S2, S3, S4 located in the foreground additionally project out of the screen surface and are shown largest. This display provides the function of the conventional status page. The system menus S6, S7, S8 are thus made smaller and smaller towards the inside of the screen. All of the aircraft fuselages remain facing the screen surface. Thus, important events or alerts can be detected even when the respective system menu S6, S7, S8 is not actually in the foreground.
Particular system menus S1-S8 are selected by rotating the carousel by way of a finger gesture, for example a wiping movement. The respective active system menu is located in the foreground, and can be zoomed in on or made smaller again by way of gestures. The gesture for zooming in may for example consist of closing the hand while simultaneously pulling towards the operator 20. One possibility for zooming out is to push the respective system menu away with an open hand, for example. The gestures used for operation should correspond to natural, intuitive movements.
For a quick overview of the cabin status, it is desirable for particular system menus S1-S8 to be in the foreground permanently when the input means 200 is not being operated. In this context, the “carousel” may for example rotate back into a preferred orientation, similarly to a compass, if there has been no further input for a particular period of time. The view which is subsequently shown corresponds to the “Cabin Status Page”.
Once a system menu S1-S8 has been selected as active, the associated aircraft fuselage is pulled into the foreground in an enlarged form and displayed in front of the plane of the screen. By way of example,
In addition, corresponding operating elements B, B1-B7, for example buttons and displays, can be placed in the same way as in the current flight attendant panel if display within the aircraft fuselage is insufficient or inappropriate. The operating elements B, B1-B7, for example buttons or switches, are made three-dimensional, unlike in the conventional flight attendant panel, and each project out of the plane of the screen. They are thus perceived by the operator 20 as actual buttons or switches which can be pressed. If a button is pressed by positioning a finger F on the virtual surface of the button and moving the finger F forwards, in accordance with
Depending on the configuration, the button may also for example have a locking function, in which case it remains permanently in the depressed position. Unlike with the two-dimensional display, this makes possible a very clear, unmistakeable display of the respective state, which is intuitively detected and easily understood by the respective operator 20. Additional emphasis using color is possible but not compulsory.
Parameters such as temperature or sound volume for example can now likewise be controlled by way of a virtual slider control, the button of which is made three-dimensional and can be gripped and displaced in three dimensions using the fingers. Virtual toggle switches in three dimensions would also be possible, for example.
In the event of problems or malfunctions, the operator 20 should be able to evaluate the relevant situation immediately at a glance from the display means 100 and deal with it rapidly and without errors. This is a further major advantage of a three-dimensional man-machine interface. Nowadays, a problem is indicated at the flight attendant panel by way of a flashing button “CIDS caution light” at the upper edge of the screen. The operator 20 then has to select the relevant page manually so as to have the relevant information displayed. As with the disclosed compass principle or rotation principle, the carousel of system menu pages S1-S8 automatically rotates, for example in the event of a problem, into a position in which the affected system menu S1-S8 is in the foreground.
Additional awareness on the part of the operator 20 is now created for example in that at least one affected system menu S1-S8 “jumps out” towards the operator 20 from the surface of the display means 100, in a constantly repeating movement. It would also be conceivable to display a plurality of system menus S1-S8 side by side simultaneously, it also being possible for example to reorder the sequence if necessary. Alternatively, it is also possible for a particular part of the display of the fuselage or a particular display element U1-U5, Z1-Z5, 1L, 1R, 2L, 2R to move out of the plane of the display means 100; in this way a three-dimensional flashing light may appear at the affected location, for example in the case of “Smoke Detection”.
Once the corresponding system menu S1-S8 has subsequently been selected, so as to press a particular operating element B, B1-7, for example a button, to eliminate the problem, said button may also immediately be indicated in that it moves towards the operator, in addition to the flash, and encourages him to press it, and the operator will subsequently do so in a reflex-like manner. This ensures that incorrect operations are reduced even in stressful situations, and the crew deals with the situation rapidly.
a) and b) show by way of example a schematic arrangement of sensors 101, which are provided as an input means 200 for detecting the gestures for operating the machine 10 and directly for operating the three-dimensional surface of the display means 100.
This input means 200 now has to provide the function of the touch film of a two-dimensional display in a comparable manner for the virtual space. An input for an operating element B, B1-B7 can therefore no longer take place on the surface of the display means 100, but instead has to take place in the three-dimensional space at the same location where the virtual operating elements B, B1-B7 appear to the operator 20.
Camera systems are currently conventional for detecting gestures in three dimensions, but because of the small distance from the display surface 100, they are unsuitable when it is desired to integrate the sensors 101 into the same housing. Operation in a darkened cabin poses a further problem. In this case, cameras do not provide the necessary precision and reliability.
It is therefore most suitable to detect the input by means of sensors 101 which can be arranged at the edge of the display means 100, for example in the form of a matrix. The sensors 101 can detect the distance of the operating finger or fingers F from the sensor 101 in three dimensions. By arranging the sensors 101 in a suitable manner, the input point in the virtual space can be determined by means of a controller.
a) and b) illustrate the principle behind a simplified method for detecting inputs on an operating interface having a small number of virtual operating elements B, B1-B7. The sensors 101 shown in this case may in principle measure the distance by various methods. The prior art in the field of distance measurement includes for example ultrasound sensors, which detect the distance linearly over time by way of the travel time of a reflected signal to the sensor 101.
However, other types of sensors would also be conceivable, which for example emit radio waves in the microwave range, or even light beams, instead of sound waves. In the case of a light source, a grid of fine laser beams or UV light would be conceivable, for example. In this case, either the reflected portion of the light would be evaluated on the same side of the display, or, in a simplified version, the incidence of the light on the opposite edge of the display would be evaluated by photocells, as in a light barrier. However, this last variant requires the installation described below in the fourth and fifth embodiment.
The placement of the sensors 101 may be configured for various distances, detection ranges E1, E2 or E3. The output signals of the sensors 101 are conveyed to the controller by way of discrete signals. In the disclosed application, the A/D converter is integrated into the sensor 101. By way of the differentiated overlapping detection ranges E1, E2, E3, it is possible to draw an inference as to the position of the finger F in three dimensions.
With the disclosed sensor system, the operating interface for a flight attendant panel can be configured to be three-dimensional.
In
In accordance with the second embodiment of the device according to the invention, which is otherwise analogous to the first embodiment, the system menus S1-S8 are signified by way of unambiguous symbols and/or photos and/or animations
As a result of the additional signification by way of unambiguous symbols, the system menus which are located in the background can rapidly be identified again. For example, a loudspeaker for the system menu “Announcements” S6, a light bulb for the system menu “Lights” S2, and a drop of water for the system menu “Water Waste” S5 would be conceivable. In each case, the symbols should be just as to-the-point as the “Fasten Seatbelt” or “No Smoking” signs for example. Representation by a photo or a 3D animation is also conceivable. Another further possible form of configuration is only to display the system menus which are furthest away using a symbol. In this case, the system menus which are displayed larger in the foreground are accordingly provided with titles instead of the symbols.
a) and b) are schematic drawings of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a third embodiment.
In
In accordance with the third embodiment of the device according to the invention, which is otherwise analogous to the first embodiment, there is a three-dimensional display on a relatively large display of the display means 100 having any desired image content, the maximum resolution of the sensors 101 ideally being equal to the pixel resolution of the display. For this purpose, the sensor detection range E has to be configured more tightly or with a narrower mesh. The narrow-mesh detection region E, and thus the lobe shape of the sensor, can be produced by strongly focussing the emitted ultrasound wave. It is also conceivable for this purpose to select a higher ultrasound frequency, which results in a smaller lobe. Since the distances between the lobes cannot be made arbitrarily smaller, and the fingers F of the operator 20 also have some width, the controller will often receive signals from a plurality of sensors 101 when a button is virtually pressed by the finger F. In this context, the sensor 101 which detects the shortest distance is always selected for the evaluation. This sensor will have determined the position the most precisely. So as to detect the operation in three dimensions, the sensor heads of the sensors 101 have to be arranged in front of the display of the display means 100. A possible distance of 1-2 cm between the transmission lobe and the display surface of the display means 100 has been determined experimentally.
a) and b) are schematic drawings of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a fourth embodiment, and
In
In accordance with the fourth embodiment of the device according to the invention, which is otherwise analogous to the first embodiment, the multi-touch principle is implemented by arranging the sensors 101 for the horizontal and vertical directions on the display edge of the display means 100 with narrow lobes of the detection region E, as is shown in
For installation on the display edge, the sensors 101 should expediently be arranged on a circuit board. The arrangement on at least two adjacent sides of the display of the display means 100 results in a matrix in the horizontal and vertical directions. In this way, a three-dimensional multi-touch input can be provided.
If the sensors 101, for example piezo sensors, detect an operating action in the space in the form of one or more fingers F, at least one electronic evaluation system or controller M2 comprising a permanent memory (flash) M3 is required. The controller M2 determines the measurement values of the sensors 101 via a multiplexer and an analogue-digital converter (A/D converter) M1. Evaluating all of the sensor data over a relatively long period, in connection with the sensor arrangement of the fourth embodiment, makes it possible to detect gestures. Depending on the construction stage of the integration, the A/D converter may also be integrated into the sensors 101 in this context.
a) and b) are schematic drawings of a sensor arrangement for detecting operator inputs, illustrating the device for exchanging information between at least one operator and a machine in accordance with a fifth embodiment.
In
In accordance with the fifth embodiment of the device according to the invention, which is otherwise analogous to the first embodiment, an arrangement of the sensors 101 in such way that the individual lobes are at a slight inclination away from the display surface is conceivable, so as to extend the detection region E further into the space in front of the display means 100. So as to achieve a homogeneous detection distance over the entire display surface of the display means 100, sensors 101 must also be positioned on the respectively opposite side of the display. The controller thus determines the position on the respective axis from the combination of the values from the two opposite rows of sensors.
In
In accordance with the sixth embodiment of the device according to the invention, which is otherwise analogous to the first embodiment, the sensors 101 are arranged in or behind the display means 100 in such a way that the lobes of the detection region E project out of the display means 100 and the distance measurement is carried out forwards. For this purpose, it would be conceivable, on the one hand, to select the sensors 10 and the material of the display means 100 in such a way that a measurement can still be carried out through the display means 100. On the other hand, by further miniaturising the sensors 101, they could also be inserted directly between the image points for example of an LCD panel or applied to the surface of the display means 100 as an additional layer.
Although the present invention has been disclosed by way of preferred embodiments, it is not limited thereto. In particular, the stated materials and topologies are purely exemplary, and are not limited to the described examples.
In particular, it is also conceivable to use the invention in other fields, in particular in vehicle or ship construction.
Number | Date | Country | Kind |
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10 2012 203 163.4 | Feb 2012 | DE | national |
This application claims benefit of and priority to U.S. Provisional Application 61/604,589, filed Feb. 29, 2012, and of German patent application No. 10 2012 203 163.4, filed Feb. 29, 2012, the entire disclosures of which are incorporated herein by reference.
Number | Date | Country | |
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61604589 | Feb 2012 | US |