Control and sensor device for controlling a door driven by a motor

Abstract

The invention relates to a control and sensor device (1) for controlling a door driven by a motor, comprising a first and a second sensor group comprising sensor electrodes (2a, 2b), a sensor strip element (3), in which the sensor electrodes (2a, 2b) are arranged, an actuating means (4) for actuating the sensor electrodes, wherein the actuated sensor electrodes form sensor regions, a measuring device (5), which is configured to detect capacitance values within the sensor regions and to create capacitance comparison values, a control device (6) which is configured to transmit a control signal as a function of the capacitance comparison values, wherein the sensor electrodes (2a, 2b) of the two sensor groups are each arranged spaced apart from one another without overlap along a longitudinal extent of the sensor strip element (3).

Description

[0001] P25235pct

[0002] CONTROL AND SENSOR DEVICE FOR CONTROLLING A MOTOR-DRIVED DOOR

[0003] The invention relates to a control and sensor device for controlling a motor-driven door or window, comprising at least two sensor groups, comprising a first sensor group comprising at least two electrically conductively connected capacitive sensor electrodes, and a second sensor group comprising at least two electrically conductively connected capacitive sensor electrodes, a sensor strip element which can be attached to a door leaf, in particular to an end face of a door leaf, wherein the sensor strip element has a longitudinal extension, wherein the sensor electrodes of the first and second sensor groups are arranged on the sensor strip element, and a control means which is configured to control the sensor electrodes of the first and second sensor groups with an alternating voltage signal.wherein the sensor electrodes of the first and second sensor groups, controlled by the alternating voltage signal, are configured to generate a first and second electromagnetic field along at least one section of the sensor strip element, wherein the first and second electromagnetic fields form a first and second sensor area extending radially away from the sensor strip element, a measuring device configured to compare first capacitance values ​​measurable within the first sensor area by means of the measuring device with second capacitance values ​​measurable within the second sensor area by means of the measuring device, wherein the first and second capacitance values ​​are measurable separately, wherein the comparison of the first and second capacitance values ​​each yields capacitance comparison values, wherein the measuring device is configured to display the capacitance comparison values,preferably wirelessly, wherein the first capacitance values ​​are defined by a substantially undisturbed sensor field and the second capacitance values ​​are defined by a disturbed sensor field, wherein preferably P25235pct,

[0004] 2. The field disturbance is caused by a body part or body of an animal or a human being located in the sensor field. A control device is configured to receive capacitance comparison values ​​transmitted by the measuring device and, depending on the received capacitance comparison values, to transmit a control signal to a motor connectable to the control device, which is configured to open and / or close a door, preferably wirelessly.

[0005] The invention further relates to a system comprising a control and sensor device and a door or window.

[0006] Control and sensor devices of this type for automatically closing doors are known from the prior art, with the control and sensor devices usually having infrared or laser sensors. The sensors are part of a

[0007] The safety mechanism is designed to create a field between the door and the door frame. Sensors detect changes in this field, which are caused by objects (such as a person or a person's body part) located in the doorway. A detected change triggers a signal to the door's control mechanism, thus halting the automatic closing process.

[0008] To detect the entire range of motion of the door, preferably during the closing process (this is necessary for safety reasons), the sensors must extend the entire length (or vertical height) of the door leaf. Since doors vary considerably in height, a sensor with a length corresponding to the door height must be custom-made for each door. Unfortunately, these custom-made sensors are expensive.

[0009] The object of the present invention is to alleviate or eliminate the disadvantages of the prior art. The invention therefore aims in particular to create a control and sensor device with which the entire door height can be detected and which is inexpensive and easy to manufacture. P25235pct

[0010] 3

[0011] This problem is solved by a control and sensor device having the features of claim 1 and a system having the features of claim 12. Preferred embodiments are specified in the dependent claims.

[0012] According to the invention, the individual sensor electrodes of the first sensor group are arranged along the longitudinal extent of the sensor strip element, in particular without overlap, preferably spaced apart along the longitudinal extent, wherein the individual sensor electrodes of the second sensor group are arranged along the longitudinal extent of the sensor strip element, in particular without overlap, preferably spaced apart along the longitudinal extent, wherein the first and second sensor electrodes are arranged alternately along the longitudinal extent of the sensor strip element.

[0013] The arrangement of the sensor electrodes along the longitudinal extent of the sensor strip element according to the invention offers the advantage that the length of the sensor strip element, and thus the length of the control and sensor device, can be individually adapted to any door height or (in the case of a vertically sliding door) door width by shortening the sensor strip element. Length adjustment can be achieved by shortening the sensor strip element between two adjacent sensor electrodes belonging to different sensor groups. The sensor electrodes of the individual sensor groups are preferably physically separate units and, in particular, individually controllable, for example, via appropriate wiring to the control device. The sensor electrodes are preferably electrically conductive elements, especially conductive plates, designed in the shape of plates or frames. The sensor electrodes can be flat, plate-shaped, or strip-shaped.Alternatively, the sensor electrodes can also have lateral arms extending from a plate- or strip-shaped main body, thereby increasing the lateral sensitivity of the sensor electrodes.

[0014] It can be provided that when the capacity comparison value is exceeded above a reference value, the control signal causes a motor to open or close a door or window that can be moved by the motor, or to reverse the direction of movement of the door or window. This allows a closing process of a door to be stopped or reversed into an opening process, thereby preventing a violation of a P25235pct

[0015] 4. The person in the doorway is prevented from entering. The motor can be an electric motor. The doorway can essentially be considered an area bounded by the door frame.

[0016] The first and / or second sensor area can extend 5 to 50 cm, preferably 15 to 35 cm, away from the sensor strip element. This offers the advantage that, if the sensor strip element is attached to an end face of a door leaf, the sensor detects an object in the doorway only shortly before it hits the door (i.e., when the door leaf is 5 to 50 cm, preferably 15 to 25 cm, away from the object). For example, if a person walks through a sliding door equipped with the sensor and control device while the door leaf is only 10% closed, the person is usually still outside the sensor area, and therefore the closing movement of the door leaf is not stopped. However, if the person is close to the moving edge of the door, they are within the sensor area, which leads to a stop in the closing process due to the measured change in capacitance.

[0017] It can be provided that the capacitive sensor electrodes are operated with alternating current, preferably at a frequency of 150 kHz to 400 kHz, in particular 200 kHz to 300 kHz, in particular 250 kHz.

[0018] The sensor device may include a third, preferably a fourth, and particularly preferably a fifth sensor group, each comprising at least two electrically conductive capacitive sensor electrodes arranged at intervals from one another on the sensor strip element. The sensor electrodes of the first, second, and third, and preferably each subsequent, sensor group are arranged alternately along the longitudinal extent of the sensor strip element. The sensors of each sensor group can generate a sensor area associated with the respective sensors. Preferably, the different sensor areas are arranged alternately along the longitudinal extent of the sensor strip element, advantageously resulting in the entire longitudinal extent of the sensor strip element having different alternating sensor areas, particularly the sensor areas of sensor electrodes of the same sensor group.

[0019] 5

[0020] The interaction or their capacity measurements are comparable with each other by the measuring device in order to determine the capacity comparison value.

[0021] It can be provided that each sensor electrode of a sensor group has a length of 3 to 20 cm, preferably 10 cm, along the longitudinal extent of the sensor strip element. This offers the advantage that the sensor strip element can be manufactured in a standard length and then cut to the length required for a specific door leaf, with the cut sensor strip element preferably comprising a sufficient number of sensor groups, at least two, preferably 3, 4, 5, 6 or more, and sensor electrodes. This reduces production costs.

[0022] It may be provided that the control signal can be transmitted wirelessly to the motor via the control device. For this purpose, the control device may have a transmitter for wirelessly sending control data, and the motor may have a receiver for wirelessly receiving the control data sent by the transmitter.

[0023] The sensor electrodes of the individual sensor groups can be arranged side by side, preferably without gaps, along the longitudinal direction of the sensor strip element. When the sensor strip element is attached to a door leaf, its longitudinal direction runs parallel to the vertical height of the door leaf if the door leaf is installed in a door frame.

[0024] The control and sensor device may include a printed circuit board for electrically connecting the sensor electrodes. The printed circuit board is arranged along the longitudinal extent of the sensor strip element, particularly on an inner surface facing the end face of a door leaf when the sensor strip element is attached to that end face. The sensor electrodes are conductively connected to the printed circuit board. The sensor strip element may be designed as a housing, the housing having an inner surface and an outer surface. The housing may contain the sensor electrodes of the first and second (and preferably each subsequent) sensor group, the actuating means, the measuring device, and the control device. The inner surface may face the door leaf when the sensor strip element is attached to that door leaf.The outer surface can be in a state, in P25235pct.

[0025] 6. The sensor strip element is attached to a door leaf and faces away from the door leaf. The inner surface can have a base on which the circuit board is arranged. The sensor electrodes can be arranged on the circuit board, so that the circuit board is essentially located between the base of the sensor strip element and the sensor electrodes. In a state in which the sensor strip element is attached to a door leaf, the inner surface of the sensor strip element can contact the door leaf, and, in a closed state of the door, at least a portion of the outer surface of the sensor strip element can contact a door jamb or door frame. That portion of the outer surface which can contact the door jamb is preferably facing away from an inner portion of the surface which contacts the end face of the door leaf.

[0026] Each sensor group may have at least three, preferably four, five or more, sensor electrodes. Preferably, the sensor electrodes of each sensor group form separately measurable sensor areas. Increasing the number of sensor groups increases the number of sensor areas, which offers the advantage of more precise detection of objects located near the door leaf or its end face.

[0027] It can be provided that the longitudinal extent of the sensor strip element is equal to the standard height of a sliding door according to DIN 18100 and 18101. The longitudinal extent is preferably equal to the maximum required height over which a sliding door must be secured, in particular substantially 2500 mm. The control and sensor device according to the invention can also be attached to the lower edge of a vertically sliding door, for example, a garage door. In this case, the longitudinal extent of the sensor strip element preferably corresponds to the length of the lower edge of the vertically sliding door. For particularly tall or wide doors, several sensor strip elements can also be arranged side by side and electrically connected in series.

[0028] It can be provided that the longitudinal extent of the sensor strip element has a first length in a manufacturing state and a second length in an assembly state in which the sensor strip element is attached to a door leaf, wherein the second length is equal to or shorter than the first length and preferably corresponds to a vertical height of a door leaf to which the sensor strip element is attached in the assembly state, wherein the sensor strip element is designed such that an adjustment of the P25235pct

[0029] 7

[0030] Length is reduced from the manufacturing state to the assembly state by shortening, in particular by mechanical shortening, such as by cutting, of the sensor strip element.

[0031] The control and sensor device may have at least two, in particular three, four or more, sensor strip elements, each preferably having a length of 30 cm to 80 cm, preferably substantially 50 cm, wherein the at least two sensor strip elements are connected in series and can be controlled by the control means, wherein the measuring device is configured to determine and compare the capacitance comparison values ​​of sensor electrode groups of the first sensor strip element and the capacitance comparison values ​​of sensor electrode groups of the second sensor strip element in order to determine group capacitance comparison values ​​present between the first sensor strip element and the second sensor strip element, which can be transmitted to the control device.

[0032] It may be provided that a coupling element is arranged between two adjacent sensor strip elements, which is designed to form a galvanic isolation between the adjacent sensor strip elements.

[0033] The coupling element may include a transformer or a capacitor.

[0034] The measuring device may include a filter designed to measure interference signals detectable by capacitance disturbances induced within the first and / or second sensor ranges and to filter these signals when determining the capacitance comparison values, so that the capacitance comparison values ​​are essentially determined without capacitance disturbances. The interference signals are generated, in particular, by sources emitting electrical signals, such as household appliances, power tools, etc. Interference signals can be triggered, in particular, by electrosmog. Specifically, interference signals can be generated by sources transmitting (electromagnetic) signals. In contrast to the interference signals, the detected capacitance changes, which are measured with the P25235pct

[0035] 8

[0036] The measuring device can detect signals that are attributable to non-transmitting objects, such as body parts or the body of a human or animal.

[0037] The sensor strip element may include an electrical energy storage device, preferably a rechargeable battery, and a shielding element, the shielding element being conductively connected to the storage device, in particular to the negative terminal of the battery. The shielding element may be located on a side of the sensor strip element facing the door leaf when the device or sensor strip element is mounted to a door leaf. The shielding element may extend over substantially the entire length of the sensor strip element. The shielding element may be positioned on the sensor strip element such that it lies between the sensor electrodes (of the first sensor group and the second sensor group) and a door leaf (to which the sensor strip element can be attached).The shielding element can be designed to shield (especially electromagnetic) influences of a door leaf or door components of a door (for example, rollers or sliding bearings on which the door runs) from the capacitance measurements.

[0038] According to the invention, a system is provided comprising a control and sensor device according to the invention and a door or window, in particular a sliding door with a door leaf which is movably arranged in a door frame, preferably linearly displaceable or pivotable, and which has an end face, wherein the sensor strip element is attached to the end face, preferably along the entire length of the end face. The end face is preferably that surface of the door leaf which, in a closed state of the door, contacts a door frame, in particular a vertical section of the door frame, of the door.

[0039] It can be provided that the first and second electromagnetic fields are rotationally symmetrical, with the axis of symmetry running parallel to the end face. The field is preferably cylindrical, with the axis of symmetry of the field running parallel to the longitudinal axis of the end face when the sensor strip element is mounted. The field extends radially away from the end face of the door leaf. P25235pct

[0040] 9

[0041] It may be provided that the sensor strip element is arranged on the front face in such a way that the sensor electrodes are arranged between the sensor strip element, on an inner side of the sensor strip element facing the front face, and the front face.

[0042] The sensor strip element can be designed to have a substantially U-shaped cross-section. This allows the sensor strip element to be attached particularly easily to an end face of a door leaf. Preferably, the cross-section of the sensor strip element is complementary to the cross-section of the end face.

[0043] It may be provided that the sensor strip element is attached to the front face of the door in such a way that the parallel legs of the u-shaped sensor strip element are oriented orthogonally to the front face and the base of the u-shaped sensor strip element is oriented parallel to the front face.

[0044] It may be provided that the vertically oriented end face of the door leaf in an installation position of the door has an end face length, in particular a door height, wherein, before the sensor strip element is attached to the end face of the door leaf, the longitudinal extent of the sensor strip element is greater than the end face length of the door leaf, and in the attached state, the longitudinal extent of the sensor strip element can be adapted to the end face length by shortening the sensor strip element.

[0045] The measuring device may comprise a measuring means and a comparison means, wherein the measuring means is arranged on the sensor strip element and the comparison means is arranged on or outside the sensor strip element, preferably at one end of the sensor strip element, wherein the measuring means is configured to send the first capacitance values ​​and the second capacitance values ​​to the comparison means by means of a communication means, wherein the comparison means is configured to determine the corresponding capacitance comparison values ​​from the first capacitance values ​​and the second capacitance values.

[0046] It can be provided that the sensor strip element has a storage device for electrical energy, preferably a rechargeable battery, which is configured to supply energy to the control means, and preferably the measuring device, wherein the door frame has a charging device, preferably inductive, which is used for this purpose.

[0047] 10 is set up to charge the memory of the sensor strip element in a substantially closed state of the door.

[0048] It can be provided that, when the door is open, the control means, and preferably the measuring device, can be operated in a standby mode in which the sensor electrodes are essentially switched off, thus making a door area within the door frame essentially sensor-field free, wherein the door frame, or a wall opposite the end face of the door leaf, has a radiation source, preferably an infrared light source, which is configured, when the door is open, in response to a switch signal from a switch connected to the radiation source, to send a light signal to a photocell located on the door or the sensor strip element, preferably on the end face of the door leaf or on a side of the sensor strip element facing away from the end face, wherein the photocell is configured, in response to the received light signal from the radiation source, to activate the control means.and preferably the measuring device, to switch from standby mode to a switch-on mode, wherein in switch-on mode the control means supply the sensor electrodes, and preferably the measuring device, with energy.

[0049] It can be provided that the stand-by mode can be activated by the control device after a defined period of time, which in particular is at least as long, preferably 1.5 times, 2 times or 3 times longer, than an opening process of the door, preferably by means of a mechanical drive device.

[0050] It may be provided that a deflecting element, for example a mirror, is arranged on the door surface which has the photocell, which is designed to receive light from the radiation source and deflect it onto the photocell.

[0051] The system may further include a fastening device designed to attach the sensor strip element to the end face of the door leaf, the fastening device having hook or locking elements and complementary hook or locking counter-elements, the hook or locking elements being arranged on an inner side of the sensor strip element facing the end face of the door leaf and the hook or locking counter-elements being arranged on a side of the end face of the door leaf facing the sensor strip element, wherein a P25235pct

[0052] 11

[0053] The interaction of the hook or locking elements with the counter-hook or locking elements allows the sensor strip element to be attached to the front surface of the door leaf, in particular by hooking or locking it in place.

[0054] The system may include a motor configured to move the door leaf or window from an open position to a closed position, or vice versa. The control device is preferably configured to actuate the motor in order to control the opening or closing of the door based on the capacitance reference value of the measuring device.

[0055] Within the context of this description, the terms "top", "bottom", "horizontal", "vertical" are to be understood as indications of orientation when the control and sensor device is arranged in its normal operating position, for example after it has been attached to a door leaf of a door.

[0056] The invention is further explained below with reference to a preferred embodiment, to which it is not, however, limited. The drawings show:

[0057] Fig. 1 shows a schematic front view of a control and sensor device according to the invention.

[0058] Fig. 2 shows a schematic side view of the device according to Fig. 1.

[0059] Fig. 3 shows a schematic rear view of the device according to Fig. 1.

[0060] Fig. 4 shows the sectional view through the section plane AA in Fig. 1,

[0061] Fig. 5 shows a schematic view of a system comprising a device according to the invention and a door,

[0062] Fig. 6 shows detail view A from Fig. 5.

[0063] Fig. 7 shows the sectional view through the section plane BB in Fig. 5, and P25235pct

[0064] 12

[0065] Figs. 8a to 8c Cross-sections through a device according to the invention and a door, in the fixed and unfixed state.

[0066] Figures 1 to 4 show different views of a control and sensor device 1 according to the invention (hereinafter referred to as the "device"). The device 1 is designed to control a motor-driven door, for example a sliding door, or a window. The door or window is moved translationally relative to the frame in an installation position where it is mounted within a frame.

[0067] The device 1 comprises at least two sensor groups, wherein a first sensor group comprises at least two electrically conductively connected capacitive sensor electrodes 2a, and wherein a second sensor group comprises at least two electrically conductively connected capacitive sensor electrodes 2b.

[0068] The device 1 further comprises a sensor strip element 3, which can be attached to a door leaf, in particular to an end face of a door leaf, wherein the sensor strip element 3 has a longitudinal extent L, wherein the sensor electrodes 2a of the first sensor group and the sensor electrodes 2b of the second sensor group are arranged on the sensor strip element 3. The sensor strip element 3 serves in particular as a receiving element or holding device for the electronic components of the device 1 and simultaneously also as a mounting element on a door.

[0069] The device 1 further comprises a control means 4, which is configured to control the sensor electrodes 2a of the first sensor group and the sensor electrodes 2b of the second sensor group with an alternating voltage signal, wherein the sensor electrodes of the first sensor group 2a and the second sensor group 2b controlled by the alternating voltage signal are configured to generate a first and second electromagnetic field along at least a section of the sensor strip element 3, wherein the first and second electromagnetic fields form a first and second sensor area, which extends radially away from the sensor strip element 3. P25235pct

[0070] 13

[0071] The device 1 further comprises a measuring device 5, which is configured to compare first capacitance values ​​measurable within the first sensor area by means of the measuring device 5 with second capacitance values ​​measurable within the second sensor area by means of the measuring device 5, wherein the first and second capacitance values ​​are measurable separately from one another. The comparison of the first and second capacitance values ​​yields capacitance comparison values, wherein the measuring device 5 is configured to transmit the capacitance comparison values, preferably wirelessly, wherein the first capacitance values ​​are defined by a substantially undisturbed sensor field and the second capacitance values ​​are defined by a disturbed sensor field, wherein the field disturbance is preferably caused by a body part or body of an animal or a human located in the sensor field.

[0072] The device 1 further comprises a control device 6, which is configured to receive capacity comparison values ​​transmitted by the measuring device 5 and, depending on the received capacity comparison values, to transmit a control signal to a motor connectable to the control device 6, which is configured to open and / or close a door, preferably wirelessly.

[0073] The individual sensor electrodes of the first sensor group 2a and the sensor electrodes of the second sensor group 2b are arranged along the longitudinal extent L of the sensor strip element 3. Preferably, the sensor electrodes 2a and 2b are arranged without overlap along the longitudinal extent L and spaced apart from each other. The first sensor electrodes 2a and the second sensor electrodes 2b are arranged alternately along the longitudinal extent L of the sensor strip element L. Thus, along the longitudinal extent L, a sensor electrode of the first sensor group 2a is always adjacent to a sensor electrode of the second sensor group 2b.

[0074] When the capacity comparison value exceeds a reference value, the control signal causes a motor to open or close a door or window that can be moved by the motor, or to reverse the direction of movement of the door or window. P25235pct

[0075] 14

[0076] The first and / or second sensor area can extend 5 to 50 cm, preferably 15 to 35 cm, away from the sensor strip element 3, wherein the capacitive sensor electrodes are preferably operated with alternating current, preferably at a frequency of 150 kHz to 400 kHz, particularly 200 kHz to 300 kHz, particularly 250 kHz. Preferably, each sensor electrode 2a, 2b of a sensor group has a length along the longitudinal extent L of the sensor strip element 3 of 3 to 20 cm, preferably 10 cm.

[0077] The device 1 can comprise a circuit board for electrically connecting the sensor electrodes 2a, 2b, wherein the circuit board can be attached to an inner side of the sensor strip element 3, which, in a state in which the sensor strip element 3 is attached to an end face of a door leaf, faces the end face, wherein the sensor electrodes are conductively connected to the circuit board.

[0078] Preferably, the longitudinal extent L of the sensor strip element 3 has a first length in its manufacturing state and a second length in its assembly state, in which the sensor strip element 3 is attached to a door leaf. The second length can be equal to or shorter than the first length and preferably corresponds to the vertical height of a door leaf to which the sensor strip element can be attached in the assembly state. The sensor strip element 3 can be designed such that its length can be adjusted from the manufacturing state to the assembly state by shortening it, in particular by mechanical shortening, such as by cutting.

[0079] The device 1 can have a plurality, i.e., at least two, in particular three, four or more, sensor strip elements 3, which preferably each have a length of 30 cm to 80 cm, preferably substantially 50 cm. The plurality of sensor strip elements 3 are preferably connected in series and can be controlled by the control means 4, wherein the measuring device 5 is configured to determine capacitance comparison values ​​of sensor electrode groups of a first sensor strip element 3a and capacitance comparison values ​​of sensor electrode groups of a second sensor strip element 3b (in the exemplary case that the device has two sensor strip elements) and to compare them with each other in order to determine group capacitance comparison values ​​present between the first sensor strip element 3a and the second sensor strip element 3b, which can be transmitted to the control device 6. P25235pct

[0080] 15

[0081] A coupling element 7 can be arranged between two adjacent sensor strip elements 3a, 3b, which is configured to form a galvanic isolation between the two adjacent sensor strip elements 3a, 3b. The coupling element 7 can comprise a transformer or a capacitor.

[0082] A spacer D can be arranged between the control means 4 and the sensor electrodes 2a, 2b (see Fig. 4 and Fig. 8b and 8c).

[0083] The measuring device 6 can have a filter device which is configured to measure interference signals that can be detected by capacitance disturbances induced within the first sensor area and / or the second sensor area and to filter these when determining the capacitance comparison values, so that the capacitance comparison values ​​are determined essentially without capacitance disturbances, wherein the interference signals are generated in particular by electrical signal-emitting sources, such as electrical household appliances, electrical hand tools, etc.

[0084] Reference is made to Figures 5 to 8c below.

[0085] Fig. 5 shows a schematic, highly simplified view of a system comprising a device 1 and a door 8, in this example a sliding door, with a door leaf 8a which is movably, preferably linearly displaceable, received in a door frame 8b. The arrow in Fig. 5 indicates the direction in which the door opens. Fig. 6 shows the detailed view A from Fig. 5, and Fig. 7 shows the sectional view through the section plane BB in Fig. 5.

[0086] Figures 8a to 8c each show cross-sections through a plane oriented parallel to the section plane BB in Figure 5. Specifically, Figure 8a shows a cross-section through a door leaf, Figure 8b a cross-section through the device 1, and Figure 8c a cross-section through the device 1 while it is attached to a door leaf.

[0087] The door 8 (or its door leaf) has an end face 8c, with the device 1 attached to the end face 8c (see also Fig. 8c). The first and second electromagnetic fields are rotationally symmetric. In the attached state of the P25235pct

[0088] 16

[0089] The axis of symmetry of the field of sensor strip element 3 therefore runs parallel to the longitudinal axis of the front surface 8c.

[0090] When the device 1 is attached to the door 8, the sensor strip element 3 is arranged on the end face 8c such that the sensor electrodes 2a, 2b are located between the sensor strip element 3, on an inner side of the sensor strip element 3 facing the end face 8c, and the end face 8c. The sensor strip element 3 has a substantially U-shaped cross-section, and preferably the sensor strip element 3 is attached to the end face of the door such that the parallel legs of the U-shaped sensor strip element 3 are oriented orthogonally to the end face 8c and the base of the U-shaped sensor strip element 3 is oriented parallel to the end face 8c. The sensor strip element 3 also has a shielding element 11, which is arranged on one side of the sensor strip element 3 facing the end face 8c.

[0091] The measuring device 5 can comprise a measuring means and a comparison means, wherein the measuring means is arranged on the sensor strip element 3 and the comparison means is arranged on or outside the sensor strip element 3, preferably at one end of the sensor strip element 3. The measuring means can be configured to transmit the first capacitance values ​​and the second capacitance values ​​to the comparison means by means of a communication means 5a, wherein the comparison means is configured to determine the corresponding capacitance comparison values ​​from the first capacitance values ​​and the second capacitance values.

[0092] The sensor strip element 3 can have an electrical energy storage device, preferably a rechargeable battery, which is configured to supply energy to the control means 4, and preferably to the measuring device 5. The door frame 8b can have a charging device, preferably inductive, which is configured to charge the storage device of the sensor strip element 3 when the door is substantially closed.

[0093] When the door 8 is open, the control means 4, and preferably the measuring device 5, can be operated in a standby mode in which the sensor electrodes 2a, 2b are essentially switched off, and thus a door area within the door frame 8b is essentially free of sensor fields. The door frame 8b or a P25235pct

[0094] A wall 17 opposite the end face of the door leaf 8a can have a radiation source 9 (see Fig. 6), e.g., an infrared light source, which is configured to send a light signal to a photocell located on the door 8 or the sensor strip element 3, preferably on the end face 8c of the door leaf 8a or on a side of the sensor strip element 3 facing away from the end face 8c, when the door 8 is open, in response to a switch signal from a switch connected to the radiation source 9. The photocell can be configured to switch the control means 4, and in particular the measuring device 5, from standby mode to a switch-on mode in response to the received light signal from the radiation source 9, wherein the control means 4, the sensor electrodes 2a, 2b, and preferably the measuring device 5, are supplied with energy in switch-on mode.

[0095] The stand-by mode can be activated by the control device 4 after a defined period of time, which in particular is at least as long, preferably 1.5 times, 2 times or 3 times longer, than an opening process of the door 8, preferably by means of a mechanical drive device.

[0096] A deflecting element, for example a mirror, can be arranged on the door surface or sensor strip element surface which has the photocell, which is designed to receive light from the radiation source 9 and deflect it onto the photocell.

[0097] The device 1 can include a fastening device 10 (see also Figs. 2 and 3) which is configured to fasten the sensor strip element 3 to the end face 8c of the door leaf. The fastening device 10 can have hook or locking elements and complementary hook or locking counter-elements. The hook or locking elements can be arranged on an inner side of the sensor strip element 3 facing the end face 8c of the door leaf, and the hook or locking counter-elements can be arranged on a side of the end face 8c of the door leaf 8a facing the sensor strip element 3. By means of the interaction of the hook or locking elements with the hook or locking counter-elements, the sensor strip element 3 can be fastened to the end face 8c of the door leaf 8a. P25235pct

[0098] 18

[0099] The device 1 can have a motor which is configured to move the door leaf of the door or the window from an open position to a closed position or from a closed position to an open position.

Claims

P25235pct 19 PATENTANSPRÜCHE 1. Control and sensor device (1) for controlling a motor-driven door or window, in particular a sliding door, comprising at least two sensor groups, comprising a first sensor group comprising at least two electrically conductively connected capacitive sensor electrodes (2a), and a second sensor group comprising at least two electrically conductively connected capacitive sensor electrodes (2b), a sensor strip element (3) which can be attached to a door leaf, in particular to an end face of a door leaf, wherein the sensor strip element (3) has a longitudinal extension (L), wherein the sensor electrodes (2a, 2b) of the first and second sensor groups are arranged on the sensor strip element (3), a control means (4) which is configured to control the sensor electrodes (2a, 2b) of the first and second sensor groups with an alternating voltage signal,wherein the sensor electrodes (2a, 2b) of the first and second sensor group, controlled by the alternating voltage signal, are configured to generate a first and second electromagnetic field along at least a section of the sensor strip element (3), wherein the first and second electromagnetic field form a first and second sensor area extending radially away from the sensor strip element (3), a measuring device (5) configured to compare first capacitance values ​​measurable within the first sensor area by means of the measuring device (5) with second capacitance values ​​measurable within the second sensor area by means of the measuring device (5), wherein the first and second capacitance values ​​are measurable separately, wherein the comparison of the first and second capacitance values ​​yields capacitance comparison values, and wherein the measuring device is configured toto transmit the capacitance comparison values, preferably wirelessly, wherein the first capacitance values ​​are defined by a substantially undisturbed sensor field and the second capacitance values ​​are defined by a disturbed sensor field, wherein the field disturbance is preferably caused by a [missing information] located in the P25235pct 20 a control device (6) which is configured to receive capacitance comparison values ​​transmitted by the measuring device (5) and, depending on the received capacitance comparison values, to transmit a control signal to a motor connectable to the control device, which is configured to open and / or close a door, preferably wirelessly, characterized in that the individual sensor electrodes (2a) of the first sensor group are arranged to each other along the longitudinal extent (L) of the sensor strip element (3), in particular without overlap, preferably spaced apart along the longitudinal extent, and wherein the individual sensor electrodes (2b) of the second sensor group are arranged to each other along the longitudinal extent (L) of the sensor strip element (3), in particular without overlap, preferably spaced apart along the longitudinal extent,wherein the first (2a) and second sensor electrodes (2b) are arranged alternately along the longitudinal extent (L) of the sensor strip element (3).

2. Control and sensor device according to claim 1, wherein, when the capacity comparison value is exceeded above a reference value, the control signal causes a motor to open or close a door or window that can be moved by the motor, or to reverse the direction of movement of the door or window.

3. Control and sensor device according to one of the preceding claims, wherein the first and / or second sensor area extends 5 to 50 cm, preferably 15 to 35 cm, away from the sensor strip element (3), wherein the capacitive sensor electrodes (2a, 2b) are preferably operated with alternating current, preferably at a frequency of 150 kHz to 400 kHz, in particular 200 kHz to 300 kHz, in particular 250 kHz.

4. Control and sensor device according to one of the preceding claims, wherein the sensor device (1) comprises a third, preferably a fourth, particularly preferably a fifth, sensor group, each of which is electrically conductive to each other at least two P25235pct 21 connected capacitive sensor electrodes are arranged spaced apart from each other on the sensor strip element (3), wherein the sensor electrodes of the first, second and third, and preferably each further, sensor group are arranged alternately along the longitudinal extent (L) of the sensor strip element (3).

5. Control and sensor device according to one of the preceding claims, wherein each sensor electrode (2a, 2b) of a sensor group has a length along the longitudinal extent (L) of the sensor strip element (3) of 3 to 20 cm, preferably 10 cm.

6. Control and sensor device according to one of the preceding claims, wherein the sensor electrodes (2a, 2b) of the individual sensor groups are arranged longitudinally. Sensor strip element (3), preferably arranged next to each other without gaps.

7. Control and sensor device according to one of the preceding claims, comprising a printed circuit board for electrically connecting the sensor electrodes (2a, 2b), wherein the printed circuit board is arranged, in particular on an inner side of the sensor strip element (3), which in a state in which the sensor strip element (3) is attached to an end face of a door leaf, is facing the end face, along the longitudinal extent (L) of the sensor strip element (3), wherein the sensor electrodes are conductively connected to the printed circuit board.

8. Control and sensor device according to one of the preceding claims, wherein each sensor group has at least three, preferably four, five or more, sensor electrodes.

9. Control and sensor device according to one of the preceding claims, wherein the longitudinal extent (L) of the sensor strip element (3) has a first length in a manufacturing state and a second length in an assembly state in which the sensor strip element (3) is attached to a door leaf, wherein the second length is equal to or shorter than the first length and preferably corresponds to a vertical height of a door leaf to which the sensor strip element (3) is attached in the assembly state, wherein the sensor strip element (3) is designed such that the length can be adjusted from the manufacturing state to the assembly state by shortening, in particular by P25235pct 22 mechanical shortening, such as by cutting, of the sensor strip element (3) is carried out.

10. Control and sensor device according to one of the preceding claims, wherein the control and sensor device (1) has at least two, in particular three, four or more, sensor strip elements (3a, 3b), which preferably each have a length of 30 cm to 80 cm, preferably substantially 50 cm, wherein the at least two sensor strip elements (3a, 3b) are connected in series and can be controlled by the control means (4), wherein the measuring device (5) is configured to determine and compare with each other the capacitance comparison values ​​of sensor electrode groups of the first sensor strip element (3a) and the capacitance comparison values ​​of sensor electrode groups of the second sensor strip element (3b) in order to determine group capacitance comparison values ​​present between the first sensor strip element and the second sensor strip element, which can be transmitted to the control device (6).

11. Control and sensor device according to claim 10, wherein a coupling element (7) is arranged between two adjacent sensor strip elements (3a, 3b) which is configured to form a galvanic isolation between the adjacent sensor strip elements.

12. Control and sensor device according to claim 11, wherein the coupling element (7) comprises a transformer or a capacitor.

13. Control and sensor device according to one of the preceding claims, wherein the measuring device (5) has a filter device which is configured to measure interference signals which can be detected by capacitance disturbances induced within the first sensor area and / or the second sensor area and to filter these when determining the capacitance comparison values, so that the capacitance comparison values ​​are determined essentially without capacitance disturbances, wherein the interference signals are generated in particular by sources emitting electrical signals, such as electrical household appliances, electrical hand tools, etc. P25235pct 23 14. Control and sensor device according to one of the preceding claims, wherein the sensor strip element (3) has a storage device for electrical energy, preferably a rechargeable battery, and a shielding element (11), wherein the shielding element (11) is conductively connected to the storage device, in particular to the negative terminal of the battery.

15. System comprising a control and sensor device (1) according to one of the preceding claims and a door (8) or a window, in particular a sliding door with a door leaf (8a) which is movably arranged in a door frame (8b), preferably linearly displaceable or pivotable, and has an end face (8c), wherein the sensor strip element (3) is attached to the end face (8c), preferably along the entire length of the end face (8c), wherein preferably the first and the second electromagnetic field are rotationally symmetric, wherein in the attached state of the sensor strip element (3) the axis of symmetry of the field runs parallel to the longitudinal axis of the end face (8c).

16. System according to claim 15, wherein the sensor strip element is arranged on the end face (8c) such that the sensor electrodes (2a, 2b) are arranged between the sensor strip element (3), on an inner side of the sensor strip element (3) facing the end face (8c), and the end face (8c).

17. System according to claim 15 or 16, wherein the sensor strip element (3) has a substantially u-shaped cross-section, wherein preferably the sensor strip element is attached to the end face of the door (8) such that the parallel legs of the u-shaped sensor strip element are oriented orthogonally to the end face (8c) and the base of the u-shaped sensor strip element (3) is oriented parallel to the end face.

18. System according to one of claims 15 to 17, wherein the end face of the door leaf (8a) oriented vertically in an installation position of the door (8) has an end face length, in particular a door height, wherein, prior to the sensor strip element (3) being attached to the end face of the door leaf (8a), the longitudinal extent (L) of the sensor strip element (3) is greater than the end face length of the door leaf (8a) and, in the attached state, the longitudinal extent (L) of the sensor strip element (3) can be adapted to the end face length by shortening the sensor strip element (3). P25235pct 24 19. System according to any one of claims 15 to 18, wherein the measuring device (5) comprises a measuring means and a comparison means, wherein the measuring means is arranged on the sensor strip element (3) and the comparison means is arranged on or outside the sensor strip element (3), preferably at one end of the sensor strip element (3), wherein the measuring means is configured to send the first capacitance values ​​and the second capacitance values ​​to the comparison means by means of a communication means, wherein the comparison means is configured to determine the corresponding capacitance comparison values ​​from the first capacitance values ​​and the second capacitance values.

20. System according to one of claims 15 to 19, wherein the sensor strip element (3) has a storage device for electrical energy, preferably a rechargeable battery, which is configured to supply energy to the control means (4), and preferably to the measuring device (5), wherein the door frame (8b) has a charging device, preferably inductive, which is configured to charge the storage device of the sensor strip element (3) in a substantially closed state of the door.

21. System according to claim 20, wherein, in the open state of the door, the control means (4), and preferably the measuring device (5), can be operated in a standby mode in which the sensor electrodes (2a, 2b) are essentially switched off and thus a door area within the door frame (8b) is essentially sensor field-free, wherein the door frame (8b), or a wall opposite the end face (8c) of the door leaf (8a), has a radiation source (9), preferably an infrared light source, which is configured, in the open state of the door, in response to a switch-on signal from a switch device connected to the radiation source (9), to send a light signal to a photocell located on the door or the sensor strip element, preferably on the end face of the door leaf or on a side of the sensor strip element facing away from the end face, wherein the photocell is configured to, in response to the received light signal from the radiation source,to switch the control means (4), and preferably the measuring device (5), from standby mode to a switch-on mode, wherein in switch-on mode the control means (4), the sensor electrodes (2a, 2b), and preferably the measuring device (5) are supplied with energy. P25235pct 25 22. System according to claim 21, wherein the stand-by mode can be activated by the control means (4) after a defined period of time, which in particular is at least as long, preferably 1.5 times, 2 times or 3 times longer, as an opening process of the door (8), preferably by means of a mechanical drive device.

23. System according to claim 21 or 22, wherein a deflecting element, for example a mirror, is arranged on the door surface or sensor strip element surface which has the photocell, which is configured to receive light from the radiation source (9) and deflect it onto the photocell.

24. System according to any one of claims 15 to 23, comprising a fastening device (10) configured to fasten the sensor strip element to the end face of the door leaf, wherein the fastening device (10) has hook or locking elements and complementary hook or locking counter-elements, wherein the hook or locking elements are arranged on an inner side of the sensor strip element (3) facing the end face (8c) of the door leaf (8a) and the hook or locking counter-elements are arranged on a side of the end face of the door leaf facing the sensor strip element (3), wherein the hook or locking elements are engaged by an interaction of the hook or The sensor strip element (3) can be attached to the end face (8c) of the door leaf (8a) by means of locking elements, in particular by hooking or locking it in place.

25. System according to one of claims 15 to 24, comprising a motor which is configured to move the door leaf (8a) of the door (8) or the window from an open position to a closed position or from a closed position to an open position.

Images