METHOD FOR OPERATING A DOOR SYSTEM

Abstract

A method for operating a door system having a door leaf, which is movable by means of a door actuator, and having a sensor unit, which is arranged at a height above a floor of the door system and with which the approach of a person towards the door leaf is detected by means of a control unit, includes at least the following steps: determining a direct distance between the sensor unit and the person using the sensor unit; determining a horizontal distance between the sensor unit and the door leaf by a geometric relationship of the person, of the door leaf and of the height the sensor unit; and determining the probable approach time of the person on the basis of the determined horizontal distance and opening the door leaf. A door system having a control unit may be used to carry out the method.

Claims

1. A method for operating a door system having a door leaf, which is movable using a door actuator, and having a sensor unit, which is arranged at a height above a floor of the door system and with which the approach of a person towards the door leaf is detected using a control unit, the method including the following steps: determining a direct distance (D′) between the sensor unit and the person using the sensor unit, determining a horizontal distance (D) between the sensor unit and the door leaf by a geometric relationship of the person, of the door leaf and of the height (h) of the sensor unit, determining the probable approach time of the person on the basis of the determined horizontal distance, (D) and opening the door leaf.

2. The method according to claim 1, wherein by the geometric relationship, a correction value (k) is determined which forms a factor between the direct distance (D′) and the determined horizontal distance (D) from D′.Math.k=D.

3. The method according to claim 2, wherein the geometric relationship is based on determining an angle (ν) between a first limb in the course of the direct distance (D′) and a second limb in the course of the horizontal distance (D).

4. The method according to claim 1, wherein the angle is determined from: ν=sin−1 (h/D′).

5. The method according to claim 3, wherein the correction value (k) is determined from: k=cos (ν).

6. The method according to claim 2, wherein the correction value (k) changes with the approach of the person towards the door system, wherein the correction value (k) is continuously adapted by means of the control unit as a function of the distance of the person from the door system.

7. The method according to claim 2, wherein the door system has a door actuator, which is actuated by the control unit, and/or which includes the control unit, wherein the correction value (k), the horizontal distance (D) and lastly the probable approach time (ETA) are determined with the control unit.

8. The method according to claim 2, wherein the control device has a RAM memory in which the correction value (k) is stored.

9. The method according to claim 1, wherein when the door system is installed with the door actuator, the installation height (h) of the sensor unit above the floor is input into the control unit.

10. The method according to claim 2, wherein a correction value (k) is only determined when the deviation of the direct distance (D′) between the sensor unit and the person and the determinable horizontal distance (D) is more than 10%.

11. A door system having a control unit with which the method according to claim 1 is configured to be carried out.

12. The door system according to claim 11, wherein the door system is designed as an automatic sliding door system, as a folding leaf door system, as a pivot leaf door system or as a revolving door system.

13. A computer program product for implementation in a control unit of a door system having a control unit configured to carry out a method according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Further measures that improve the disclosure will be outlined in greater detail below together with the description of a preferred exemplary embodiment of the disclosure on the basis of the figures, in which is shown:

[0026] FIG. 1 a first schematic representation of a door system having a sensor unit arranged above a door leaf, with the door system being entered by a person, and

[0027] FIG. 2 the door system according to FIG. 1 with the person who has approached further to the door system.

DETAILED DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 shows a door system 100 in a wall 14 and the door system 100 has a door leaf 10, which is represented in a closed position. A sensor unit 11 is arranged above the door leaf 10. The sensor unit 11 is mounted at the height h above the floor 12, with the floor 12 also forming part of the passage region of the door system 100, which in this respect has the same height.

[0029] The person 13 is located at a horizontal distance D away from the door system 100. Based on the assembly height h of the sensor unit 11, a direct distance D′ between the person 13 and the sensor unit 11 results and the direct distance D′ runs obliquely and is therefore longer than the horizontal distance D between the person 13 and the door system 100.

[0030] If the door system 100 is operated, then the following method is carried out with the control unit 15: Determining the direct distance D′ between the sensor unit 11 and the person 13 by means of the sensor unit 11 by conventionally detecting the person 13; Determining a horizontal distance D between the sensor unit 11 and the door leaf 10 by means of a geometric relationship between the position of the person 13, the position of the door leaf 10 and the position of the sensor unit 11 of the height h; and the probable approach time ETA of the person 11 is determined on the basis of the determined horizontal distance D′, according to which the opening of door leaf 10 is ultimately triggered by the control unit 15.

[0031] The probable approach time ETA is the time which the person 13, in relation to their current position and in relation to the current movement speed towards the door system 100, requires to arrive at the door system 100 and pass it. The control unit 15 can ultimately determine an optimal movement of the door leaf 10 on the basis of the approach time ETA, in particular in terms of the opening time, the opening hold period and the subsequent closing of the door leaf 10. The horizontal distance D can for example be determined by means of the Pythagoras' Theorem or on the basis of the relationship ν=sin.sup.−1 (h/D′).

[0032] FIG. 2 shows the door system 100 according to FIG. 1 with the door leaf 10, the control unit 15 and the door actuator 16 in arrangement on the wall 14. The sensor unit 11 is arranged above the door leaf 10 at the height h. The person 13 has already moved further towards the door system 100, compared to the first position with the horizontal distance D1 such that the distance D1 is reduced to D. Therefore, the direct distance D1 is also reduced to D. The direct distance D′ is consequently measured even more obliquely than the direct distance D′ with the person 13 further away. As a result, the angle D1 to u also becomes larger since the geometric relationship between the person 13, the position of the sensor unit 11 at the assembly height h and the reduced horizontal distance D has changed. As a result, the correction value k also changes according to the relationship D′ k=D continuously during the approach of the person 13 towards the door system 100. The correction is therefore carried out continuously during the approach phase of the person 13 towards the door leaf 10 such that the corrected horizontal distance D can be determined for each position during the approach.

[0033] The control unit 15 consequently calculates, on the basis of the horizontal distance D, the probable approach time ETA, which has been more accurately determined in this respect. Therefore, the control of the door actuator 16 for moving the door leaf 10 can also be actuated in an improved manner via the control unit 15, in particular in order to determine an optimal opening time, an optimal opening period and a similarly optimal closing time of the door leaf 10.

[0034] The design of the disclosure is not restricted to the preferred exemplary embodiment indicated above. In fact, a number of variants is conceivable which make use of the solution represented even in the case of essentially different embodiments. All features and/or advantages emerging from the claims, the description or the drawings, including constructive details or spatial arrangements, may be essential to the disclosure by themselves and in the most varied combinations.