METHOD FOR OPERATING A DOOR SYSTEM

Abstract

A method for operating a door system having a movable door leaf and a control unit, with at least one sensor unit being configured, with which the approach of at least one person is detected, includes: providing the sensor unit in the form of a radar sensor and/or a camera with an image processing unit; recording a distance of the person from the door system using the sensor unit; recording an approach speed with the sensor unit, at which the person approaches the door system; transmitting the distance and approach speed; determining a probable approach time of the person with the control unit; determining the movement parameters for moving the door leaf by the control unit and actuating the door leaf by the door actuator based on the movement parameters determined by the control unit. A door system having a control unit is configured to carry out this method.

Claims

1. A method for operating a door system, wherein the door system has a movable door leaf and a control unit for controlling a door actuator, wherein at least one sensor unit is configured, with which the approach of at least one person is detected, wherein the method includes the following steps: providing the sensor unit in the form of a radar sensor and/or a camera with an image processing unit, recording a distance (d) of the person from the door system by the sensor unit, recording an approach speed (v) by the sensor unit, at which the person approaches the door system, transmitting the distance (d) and the approach speed (v) from the sensor unit to the control unit, determining a probable approach time (ETA) of the person by the control unit, determining the movement parameters for moving the door leaf by the control unit, and actuating the door leaf by the door actuator based on the movement parameters determined by the control unit.

2. The method according to claim 1, wherein the determination of the movement parameters for moving the door leaf by the control unit comprises an opening time, an opening speed and/or an opening hold period of the door leaf.

3. The method according to claim 1, wherein the probable approach time (ETA) is determined at least from the distance (d) of the person from the door leaf detected by the sensor unit and an approach speed (v) detected by the sensor unit by the control unit based on the distance-time law ETA=d/v.

4. The method according to claim 1, wherein in addition to determining the probable approach time (ETA) and the approach speed by the sensor unit, an approach angle at which the person approaches the door system and/or size information of the person are determined.

5. The method according to claim 1, wherein the distance (d), the approach speed (v) and/or the approach angle of the person is recorded continuously over the entire approach time at least within the region of a distant field before the door system.

6. The method according to claim 1, wherein the approach time (ETA) is stored at least in a volatile manner in the control unit of the door system in a memory and/or wherein the actual passage time of the person is recorded and/or calculated and/or the passage time forms the basis of the approach time (ETA) stored in the memory.

7. The method according to claim 1, wherein the approach time (ETA) of each person passing the door system is stored cumulatively and/or discretely such that the prediction of the approach time (ETA) is continuously optimized based on the recording of the approach speed and/or the distance of the person from the door leaf.

8. The method according to claim 1, wherein when a pivot movement of the door leaf is carried out, an interaction between the door leaf and the person is identified, wherein a correction value is determined for the pivot movement of the door leaf based on the interaction and future pivot movements of the door leaf are corrected by the correction value.

9. The method according to claim 1, wherein the correction values are optimized in a correction value memory via an algorithm over the in particular initial service life of the pivot leaf door by the correction values for future pivot movements of the door leaf being defined in a prioritized manner such that the future number of interactions between the door leaf and the person entering the pivot leaf door is minimized.

10. The method according to claim 1, wherein the interaction between the door leaf and the person relates to a deliberate behavior of the person, an interruption, an acceleration, a slowing down and/or a stopping of the walking movement of the person just before the person passes through the door system and/or in that the interaction between the door leaf and the person relates to a pushing of the opening movement of the door leaf.

11. The method according to claim 1, wherein an exit time of the person is determined on the second door side of a sensor unit, wherein the opening duration of the door leaf is determined from the identified exit time or the approach time (ETA), depending on which time is longer.

12. A door system having a control unit designed to carry out a method according to claim 1.

13. The door system according to claim 12, wherein the door system is configured as an automatic sliding door system, as a swing leaf door system, or as a folding leaf door system.

14. 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

[0045] 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 are shown:

[0046] FIG. 1 a view of a door system with a person represented multiple times who approaches the door system and moves away from the door system again on the rear side, and

[0047] FIG. 2 a schematic representation of a door system with two sliding door leaves and an approaching person.

DETAILED DESCRIPTION OF THE DRAWINGS

[0048] FIG. 1 shows in a side view a door system 100 with a door leaf 10, which is arranged in a wall 15 so as to be movable. To actuate the door leaf 10, a door actuator 12 is used, which has a control unit 11, and the control unit 11 does not have to be a structural component of the door actuator 12, and the control unit 11 can also be arranged separately. The door actuator 12 can open and close the door leaf 10, with the door leaf 10 being represented closed in the arrangement shown.

[0049] On a first door side A, a first sensor unit 13 is used to monitor a first distant area F and on the second door side B, a second sensor unit 13 is used to monitor a second distant area F. The near areas N adjoining the door system 100 can, but must not necessarily, be monitored by the sensor units 13, which are designed as radar sensors here. The near areas N can be monitored by additional optical sensors or by ultrasound sensors, in particular incorporating closure edge monitoring.

[0050] In the image shown, a person 14 is drawn in multiple times, who moves towards the door system 100 from left to right on the first door side A and the person 14 shown moves away from the door system 100 on the second door side B.

[0051] If the person 14 now moves towards the door system 100 on the first door side A, then the first sensor unit 13 designed as a radar sensor measures the distance d and the approach speed v of the person 14 and a probable approach time ETA is determined from the distance d and the approach speed v of the person 14 relative to the door system 100. The probable approach time ETA is the time which the person 14 requires, from the position shown, to cross the door system 100 and the probable approach time ETA is calculated with the control unit 11.

[0052] The person 14 shown on the second door side B is detected by the second sensor unit 13 and an exit time ETD is also determined here with the recording of the distance of the person 14 and the exit speed from the door system 100.

[0053] The method according to the disclosure is designed here with the following steps: providing the sensor unit 13 in the form of a radar sensor and/or a camera with an image processing unit; recording a distance d of the person 14 from the door system 100 by means of the sensor unit 13; recording an approach speed v by means of the sensor unit 13, at which the person 14 approaches the door system 100; transmitting the distance d and the approach speed v from the sensor unit 11 to the control unit 11; determining a probable approach time ETA of the person 14 by means of the control unit 11; determining the movement parameters for moving the door leaf 10 by means of the control unit 11 and actuating the door leaf 10 by means of the door actuator 12 based on the movement parameters determined by means of the control unit 11.

[0054] FIG. 2 shows a schematic plan view of a door system 100 and a person 14 is shown who approaches the door system 100 with two door leaves 10, designed as sliding door leaves, at the approach speed v from a distance d. The sensor unit 13 detects the approaching person 14 and the control unit 11 triggers the sliding movement of the door leaves 10 at a sufficiently short distance d taking into account the approach speed v. In this case, the following calculation is used: The time to overcome the distance d is determined by t=d/v. The door leaves are moved for the door opening path d1 at the door opening speed v1 according to: t1=d1/v1.

[0055] Automatic swing leaf doors are often used in order to enable barrier-free access if the manual opening would be too difficult for impaired users. Servo or power assist functions are normally used, with the manual opening being assisted in a motorized manner by the door drive. However, these door systems are generally used by impaired people only to a small extent and predominately by unimpaired people. The latter use the door systems notably more dynamically and are in fact impeded by the motorized assistance since they open the door system more quickly than the motorized assistance permits or the additional manual acceleration leads to the door system not being able to be braked correctly in the end position.

[0056] The sensor unit transmits the approach speed of the person to the drive controller which then calculates and accordingly adjusts the strength of the motorized assistance as well as the required brake path. This allows the door to be used better by the different groups of people and to be braked in the end position to prevent damage.

[0057] 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.