DE102013013778A1 - Automated closure element e.g. gate, for use in building, has non-contact detecting units, where Information contents of set of non-contact detecting units is provided as default information for minimum opening height - Google Patents

Abstract

The element (1) e.g. door, has a set of non-contact detecting units (6, 12) e.g. pulsed laser diode, that is arranged for determination of an object (11) such as people. Information contents of the set of non-contact detecting units is provided as default information for minimum opening height (10) that is required by a driving apparatus utilized for driving the closure element. The set of detecting units is arranged at outside of the closure element. The set of detecting units is arranged with a set of scanning sensors or presence sensors. An independent claim is also included for a method for operation of a closure element.

Description

The invention relates to an automated by means of a drive device, in its open position spatially variable closure element, in particular a gate, a door or the like. Likewise, a method for operating such a drive device in conjunction with a detection device is claimed.

Sufficient sensors or methods for detecting presence in different situations with doors and their designs are known. Different means such as cameras are used when it comes to monitoring a wide range. However, such a camera is highly dependent on the light used to illuminate the control area accordingly. Furthermore, infrared reflection sensors are known which operate on the distance measurement principle.

Nowadays, laser scanners are used for different purposes u. a. also for object acquisition. A light beam generated by a laser scanner can sweep over a monitoring plane periodically with the aid of a deflection unit.

Furthermore, sensors are used today in the security technology. Such sensors must work very reliably and meet a high safety standard. To meet these high safety standards, a number of measures have to be taken, such as safe electronic evaluations by redundant, diverse electronics, functional monitoring or special monitoring of the contamination of optical components and / or providing individual test cycles and targets with defined reflectivities below the corresponding scan angles must be recognized.

By the DE 103 02 812 B4 For example, a monitoring device and a monitoring method for a motor-driven building closure have become known. In this case, a control device for controlling and monitoring the movement of the wing is used, wherein the control device uses a first stationary electrotechnical unit and a second unit movably connected to the wing.

The DE 10 2010 009 371 A1 Gates a gate and procedures for controlling and calibrating a gate. The gate is defined as a lifting or rolling gate. In the presence of an object on a Zuwegung the shutter is released, wherein at the gate, a transmitter is mounted, which emits a signal in the direction of the route and the signal is evaluated by a receiver.

With the DE 102 03 145 C1 a device for automatic operation of a door is disclosed. In this disclosure, the most widely known signals from generators or transducers are used to open the gate or to monitor the safety of the gate closing area. In this case, a working according to the Rückstrahlprinzip detector for monitoring an area in association with one, the ground level aprons of the gate is designed as a scanning detector, which is mounted near a side boundary of the door opening at a height which is based on the maximum height on the apron concerned , objects not to be detected as an obstacle object, and which scans, with its scanning beam as monitoring area, a horizontal fan smaller than the relevant apron, scanned by the beam thickness of a certain vertical thickness whose radial dimensions determined by the maximum measuring range of the scanning detector correspond to the size the relevant apron is selected.

A sensor arrangement for determining a plurality of different positions of a moving part has a plurality of transponders carried by the moving part, which operate together with a single receiving head according to the DE 103 37 660 A1 , The transponders contain different digital identification signals, as a function of which an electromagnetic reading field of the receiving head is modulated when the transponder and the receiving head are juxtaposed. In this way, the most diverse positions of the movable part can be detected using a single receiving head. Such a device is intended to specifically enable access to a danger area, whereby normally this area is blocked.

In sectional doors or roller shutters or the like is usually in the presence of an object that may be, for example, a vehicle or the like, a complete opening to spend the object in the building or out of the building can. However, this inevitably means, depending on the size of the gate, that the opening height, however, is much greater than the object in its overall height, which is to be spent in or out of the building. Such a procedure results in enormous energy losses because, for example, the air heated or cooled inside the building can pass unhindered into the outside area.

It is an object of the invention to find a solution that the energy balance and thus energy efficiency in the use of automated building closures significantly improved can be. In particular, a change in the closure elements should be excluded. This is also carried out with regard to a possible integration of sensors whose mounting in or on the movable closure element.

The object of the invention is achieved by the features of the device claim 1 and a method according to claim 20. The subclaims have further structural configurations and various possible applications of the solution principle to the content.

Since a moving sensor system is very expensive in practice, because, for example, in a manufacturing process appropriate cables must be laid with, such a sensor is also susceptible to interference at the moment when there is damage to the closure element, in the form of a gate, a door or The like can be executed. Especially with large sectional doors, it often happens that due to carelessness it comes to damage individual sections. The replacement of individual sections without regard to electrical installations of sensors or the like is relatively easy.

The invention therefore makes use of the teaching of a stationary, non-contact detection device mounted outside the closure element. Such a detection device is not responsible for the security area of the closure element as in conventional applications, but serves only to determine the determination of objects, persons or the like in front of the closure element or behind the closure element in its height extent. This is a very big difference from the previous field of use of sensors or the like.

In radar sensors, a transmitting and receiving antenna is usually present, which are usually arranged under a cover or a radar lens. The transmission signal is radiated via a transmission antenna and a reception signal is received by a reception antenna. In this case, separate transmit and receive antennas or a common transmit / receive antenna can be used. The received signal is downsampled, for example, by mixing with a part of the transmission signal into an intermediate frequency signal or baseband signal. The intermediate frequency signal of the radar sensor or each channel of the radar sensor is usually amplified in an evaluation circuit by an amplifier, which are preferably integrated in the detection device.

There may be problems with radar objects placed a short distance from the radar sensor. This is due to the fact that the received signals whose frequency differs only slightly from the transmitted signals can lead to misinterpretations. It is therefore desirable that such an intermediate frequency signal is also evaluated in areas of low frequencies.

In order to apply these short distances of the radar signals when detecting an object in the conventional technique in the form of a pulse radar, this distance is set at about 15 cm, so it is necessary to set the pulse width to about 1 ns. This can be achieved by requiring a bandwidth of about 1 GHz. The bandwidth of the noise is quite wide, d. H. it reaches about 1 GHz, which makes the detection of the object much more difficult.

Thus, in conjunction with at least one program, such a detection device is also not suitable for automatically opening a closure element in the form of a gate or the like when the object approaches. The actual opening command is triggered either by a switch, a button in stationary form or by a remote control or the like or a presence sensor, which may be designed, for example, as a radar detector. Due to such a targeted opening information, the closure element is automatically moved out of the closed position due to the drive device. The opening command also simultaneously activates the stationary detection device. Due to the nature of the detection device, it is capable of producing a monitoring field which is horizontally emitted in its height, virtually parallel to the ground in front of or behind the closure element. Thus, during the opening trip, the detection device can determine whether an object is within the monitoring area generated by the detection device. If this is the case, then the opening travel of the closure element is carried out until its entire open position. This means that the closure element performs by its automation by means of the drive device a normal opening travel. In this case, other opening heights are possible, the z. B. can also be changed after an installation at a later date. In such a case, the installation height of the detection device in conjunction with the evaluation program determines the opening height.

The detection device has its installation location at predetermined heights or the operator of the closure element sets due to its custom use the appropriate height from the bottom of the building or the closure element just fixed. Such heights for an installation location of the detection element can be carried out, for example, at half the height of the closure element or in three quarters of the opening height or at any height of the closure element. However, it is also possible for the at least one detection device to be at least two meters away from the ground, preferably between 2 m and 2.50 m, more preferably between 2 m and 2.80 m, or in particular between 2 m and 3.50 m the opening height of the closure element to be installed.

As already stated, an activation of the detection device is automatically performed only in an opening operation, in the subsequent closing operation, the detection device is inactive. This means that with each opening command in addition to the drive device and the detection device is automatically activated. If an object is now located in the monitoring area in the height of the installation location of the detection device, this information is automatically forwarded to the drive device. This information is processed by means of a program within the drive device. The processing forms from the information of the detection device a command, which thus determines the position of the opening height by means of the drive device of the closure element. Thus, the detection device can figuratively be regarded as a limit switch for the installation height thereof. The closure element located in the opening phase will thus only ascend to the height reported by the detection device. By such a procedure, a complete opening of the closure element will be omitted. As a result, enormous energy losses can be avoided by an unwanted heat or cold exchange from the building out.

If, however, an object in the monitoring zone is detected by the detection device after the start command of the drive device, then the closure element automatically moves to its normal total open position.

Due to an existing memory within the drive device, this opening height can be automatically stored so that, for example, after closing the building by the closure element and then bringing the object out of the building, this height is automatically approached again.

As the foregoing description makes clear, such a detection device or parts thereof is not connected in any way with such a closure element. Rather, such a detection device can be installed on the frame of the closure element to parts of the building or even to external facilities outside the building in front of the closure element in a meaningful position. Moreover, it is possible that, depending on the application, different detection devices can be used at different heights. The same applies, of course, in addition to the example shown outside area of a building for indoor use alike.

Such a device in conjunction with the disclosed method also prevents damage due to improper opening of closure elements, for example via deadman circuits or the like.

The detection device is preferably housed within a weatherproof housing and monitored against known control devices on gates or the like, the detection device not the closing area of the door, but is characterized in that a detection of an object located in front of the closure element is carried out only in its height extent.

In a further preferred embodiment, an object in front of a closure element can be detected by a presence sensor and, based on this signal, the opening process of the closure element can be set in motion. The operation of the detection device would be the same in such a case.

A suitable detection device is preferably equipped as a laser or laser scanner with the generation of an object detection laser beam. In this case, such a device preferably has at least one deflection unit for deflecting the laser radiation and includes at least one detector for detecting a laser beam reflected at the object. In a preferred embodiment, such a laser scanner can generate fan laser beams in a plane. By using such a laser scanner, which operates preferably in the 1550 nm band range, metrological conditions that can occur outdoors, only to a small extent to take into account. Furthermore, in addition, in this frequency range, such laser radiation is insensitive to humans.

According to a further preferred embodiment, at least one of the detection devices described above may be fixedly mounted on each side of the closure element. Thereby an overlapping surveillance area is possible. Furthermore, an evaluation area forming at least two scanning beams is generated by this overlapping area. By such an arrangement, the surveillance area is easily and completely monitored for object heights in front of the gate or behind the gate in a simple manner as soon as the closure element is in its opening status.

It goes without saying that a real-time evaluation of the acquired scan values is carried out via corresponding programs. As a result, a rapid response to the project to be detected is achieved, wherein due to the scanning values, the opening height of the closure element can be minimized quite decisively. The detection devices, which are preferably positioned on the outer, stationary sides of the movable closure element, are therefore able to cover a surface at an angle of at least 90 ° to 120 °. The at least one detection device is thus suitable for controlling the opening height of the closure element via a program in conjunction with the drive device. Through such a use of detection devices in conjunction with the program evaluation, it is possible to reliably detect objects located in front of the closure elements at different heights and to generate therefrom an optimal opening region of the closure element.

The embodiment of a detection device as laser or laser scanner can be carried out so that, for example, a line-like sweeping of objects with a beam in the horizontal direction is performed. Such a device essentially consists of a scan head and a driver and a control electronics. The most varied laser scanners are used, whereby the simplest application of a one-dimensional laser scanner is given. Such a laser scanner can also be designed as a mirror scanner, whereby a scanning movement is carried out by changing a mirror on which the light beam is reflected. For a height determination in an object to be detected, a variety of measurement methods can be used. In the measurement and utilization of the light propagation time, individual, short laser pulses are emitted and the radiation reflected on the object is registered with sensors. The reflection time is a measure of the distance between the transmitting and receiving unit.

The accuracy of laser scanners is very high and reaches a point accuracy of up to one millimeter.

For an effective use of the stationary detection device, there are a variety of methods that can be performed depending on the individual needs of the operator or the sites and not conclusively set out. For example, in a preferred method, the at least one detection device can supply information about the area in front of the closure element during the entire opening travel of the closure element to the drive device. From this information, which may include, for example, the presence of an object or no object is calculated by means of a program, the most energy-efficient opening height in for the closure element and executed.

Furthermore, there is the possibility that the detection device remains activated during the entire opening travel and also beyond that also in the opening position of the closure element. By such a method, energy savings can be achieved that, for example, the closure element from the energy-saving opening height in a subsequent presence of an object must not be moved back to the closed position, but automatically moves to the next higher opening position.

In order to bring the stationary at least one detection device in conjunction with the drive device in the sense of energy efficiency, the calculation of the lowest opening height of the closure element is carried out by means of at least one program. Such a program can be operated in different operating modes and also programmed. In this case, the range and the detection range of the detection device are adjustable or programmable.

In a preferred embodiment, it is possible that the evaluation electronics for the detection device is not located within the housing of the control device, but at the same time is integrated within the drive device. Within the drive device, which is equipped with an intelligent microprocessor control, the evaluation and control of the closure element is regulated by means of appropriate programs. Such programs work according to the maxims of energy efficiency and automatically adapt to the opening height of the existing closure element or the mounting location of the detection device.

Further advantages and applications of the present invention will become apparent from the following detailed description taken in conjunction with the drawings.

It shows:

1 A first embodiment of an application of a detection device;

2 a second embodiment of a detection device;

3 an application of the detection device.

In the schematically illustrated embodiment according to the 1 is a closure element 1 in the form of a sectional door leaf within an opening 2 with a fall 3 of a building. The execution of the closure element 1 As a sectional door leaf is only to be seen as an example, with any other design than door leaf is possible. It is an example of the fall 3 a control device 4 present, which is designed as a presence sensor or the like and includes the task, the presence of an object 11 , which is a vehicle in this case, to detect and thus make it clear that either the closure element opens automatically or is additionally realized by a radio signal or a stationary element. Thus, after appropriate activation of an opening request, the closure element 1 be moved by an unillustrated drive device from the closed position to an open position. In the present embodiment, a detection device is stationary on an existing part of the building 6 appropriate. This detection device 6 is equipped with appropriate means to quasi horizontal to a floor 5 detection beam 15 to produce in their vertical extent occupy only a small height, but preferably in the form of a fan or the like monitor a horizontal area. In this case, the arrangement of the detection device 6 with her detection beam 15 at a height that is also almost an opening height 10 of the openable closure element 1 represents. This means that at an opening travel of the closure element 1 by the drive device at the same time the detection device 6 is activated. Because of the detection device 6 generated detection beam 15 will be in the specified opening height 10 carried out a detection of objects or the like. Located within the opening height 10 ie below the detection beam 15 no object 11 , so would be due to the programmatic embodiments, the closure element 1 only up to the opening height 10 driven open. However, if an object is detected, which maintains the opening height 10 includes a height extension, so automatically the shutter elements 1 preferably spent in its entire open position. Such an embodiment, as has been described, for example, from 3 be taken, the object 11 below the opening height 10 has a height extent and thus the closure element 1 only up to this opening height 10 ascends. This will unnecessarily open the entire closure element 1 avoided.

By the positioning of the detection device 6 on one of the stationary building parts or next to the building on appropriate facilities a simple wiring with the drive device is possible. In addition, such a procedure, especially for closure elements that are designed as high-speed doors or the like, applicable without problems.

In the embodiment of the 2 In a further preferred embodiment, the use of further additional detection devices 12 . 13 . 14 in addition to the detection device already described 6 shown. The detection device 12 is above the detection device 6 for the outdoors 9 available. Due to the different distances of the detection device 6 and the detection device 12 to the ground 5 Thus, different measurement heights of the objects present arise 11 by means of the detection devices 6 . 12 , so for the detection device 12 another and thus higher opening height 16 opposite the opening height 10 comes to fruition. By appropriate programming, the drive device can thus also have a second or further detection devices arranged one above the other 6 . 12 process with their information, so that in particular at very high opening heights of closure elements 1 Here it is possible for a corresponding saving of energy from the building out.

Like the execution of 2 makes clear, is also next to the outside of the building 9 installed detection devices 6 . 12 given further opportunity within the building 8th corresponding detection devices 13 . 14 either single or stacked or to use accordingly.

Through the use of stationary detection devices 6 . 12 . 13 . 14 In conjunction with at least one program for evaluating the signal values and the processing in the drive device is a safe method for energy saving in shutter elements 1 achieved in that the Torblattunterkante 7 no contact with the objects 11 that the closure element 1 want to happen, learn.

LIST OF REFERENCE NUMBERS

1

closure element

2

frame

3

fall

4

control device

5

ground

6

detection device

7

Torblattunterkante

8th

INSIDE OF bUILDING

9

building exterior

10

opening height

11

object

12

detection device

13

detection device

14

detection device

15

detection beam

16

opening height

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10302812 B4 [0005]
• DE 102010009371 A1 [0006]
• DE 10203145 C1 [0007]
• DE 10337660 A1 [0008]

Claims (34)

Automated by means of a drive device, in its opening height ( 10 . 16 ) adjustable closure element ( 1 ), in particular a gate, a door or the like, characterized in that at least one stationary, outside of the closure element ( 1 ) mounted non-contact detection device ( 6 . 12 . 13 . 14 ) for height determination of objects ( 11 ), Persons or the like, the information content of the detection devices ( 6 . 12 . 13 . 14 ) as a default for the minimum opening height to be executed by the drive device ( 10 . 16 ) of the closure element ( 1 ) serves. Detection device according to claim 1, characterized in that outside the closure element ( 1 ) on each side thereof a detection device ( 6 . 12 . 13 . 14 ) is installed. Detection device according to claim 1, characterized in that at least one detection device ( 6 . 12 . 13 . 14 ) outside and / or within an installation location outside the closure element ( 1 ) is installed. Detection device according to one of the preceding claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) on a frame ( 2 ), a building part or a place outside the building, preferably installed on / on an external device. Detection device according to one of the preceding claims, characterized in that the installation height of the detection device ( 6 . 12 . 13 . 14 ) measured from a ground ( 5 ), a measure of the executable opening height ( 10 . 16 ) of the closure element ( 1 ). Detection device according to one of the preceding claims, characterized in that the at least one detection device ( 6 . 12 . 13 . 14 ) at half height, preferably in three quarters of the height of the entire opening height of the closure element ( 1 ) is installed. Detection device according to one of the preceding claims, characterized in that the at least one detection device ( 6 . 12 . 13 . 14 ) in at least 2 m, preferably between 2 m and 2.50 m, more preferably between 2 m and 2.80 m or in particular between 2 m and 3.50 m opening height ( 10 . 16 ) of the displaceable closing element ( 1 ) is installed. Detection device according to one of the preceding claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) Abtastsensoren or a sensor unit includes, whose scanning beams are formed as horizontal fan with a low height education. Detection device according to one of the preceding claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) is designed as a laser or as a laser scanner. Detection device according to one of the preceding claims, characterized in that the laser or the laser scanner has a slit diaphragm. Detection device according to one of the preceding claims, characterized in that the laser or the laser scanner comprises a pulsed laser beam. Detection device according to one of the preceding claims, characterized in that the drive device has a data memory for storing information contents of the detection device ( 6 . 12 . 13 . 14 ), and that the information contents of the detection device ( 6 . 12 . 13 . 14 ) are processed by means of at least one program in the drive device. Detection device according to one of the preceding claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) has an active, horizontally oriented detection range of at least 90 °, in a preferred embodiment, a detection range substantially of 120 °. Detection device according to one of the preceding claims, characterized in that within the detection device ( 6 . 12 . 13 . 14 ) An evaluation of the received information content is included. Detection device according to one of the preceding claims, characterized in that the evaluation is adaptive or integrative contained in the drive device. Detection device according to one of the preceding claims, characterized in that the laser or the laser scanner consists essentially of a scan head and a driver and control electronics. Detection device according to one of the preceding claims, characterized in that the laser or the laser scanner has a one-dimensional deflection and the intensity is variable. Detection device according to one of the preceding claims, characterized in that it is in the detection device ( 6 . 12 . 13 . 14 ) is a light-section scanner with coded light approach whose depth resolution and measurement accuracy is less than 0.05 mm. Detection device according to one of the preceding claims, characterized in that it is in the detection device ( 6 . 12 . 13 . 14 ) is a pulsed laser or a pulsed laser diode. Method for operating a closure element ( 1 ), preferably as a door leaf or the like, which is operated by a drive device, which by at least one operating element or a control device ( 4 ) is activated, wherein the opening height of the closure element ( 1 ) by at least one detection device ( 6 . 12 . 13 . 14 ) is influenced according to the preceding claims. A method according to claim 20, characterized in that by a pulse or command of the operating element or the control device ( 4 ) the drive device and the detection device ( 6 . 12 . 13 . 14 ) are activated and by the drive device, the closure element ( 1 ) up to the height of the detection device ( 6 . 12 . 13 . 14 ) when opened by the detection device ( 6 . 12 . 13 14 ) no object ( 11 ) or the like in front of the closure element ( 1 ) is detected. A method according to claim 20, characterized in that by a pulse or command of the operating element or the control device ( 4 ) the drive device and the detection device ( 6 . 12 . 13 . 14 ) and thereby the closure element ( 1 ) is opened to the maximum opening height when the detection device ( 6 . 12 . 13 . 14 ) an object ( 11 ) or the like in front of the closure element ( 1 ) is detected. Method according to claim 20, characterized in that the detection device ( 6 . 12 . 13 . 14 ) during the entire opening travel of the closure element ( 1 ) supplies information to the drive device, which is processed by means of a program in such a way that it produces an energy-effective opening height as a function of the object ( 11 ) is calculated and executed. Method according to one of the preceding method claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) during the entire opening travel of the closure element ( 1 ) is activated and upon reaching the closure element ( 1 ) is further activated in an energy-saving opening height. Method according to one of the preceding method claims, characterized in that the drive device due to information of the detection device ( 6 . 12 . 13 . 14 ) the opening process of the closure element ( 1 ) continues or approaches a next opening height if the information content of the detection device ( 6 . 12 . 13 . 14 ) after the start of the opening process of the closure element ( 1 ) an object ( 11 ) detected. Method according to one of the preceding method claims, characterized in that the detection device ( 6 ) 12 ) 13 ) 14 ) after the start of the drive device during the entire opening time of the closure element ( 1 ) is activated. Method according to one of the preceding method claims, characterized in that the drive device the closure element ( 1 ) from a reduced opening height due to information from the detection device ( 6 . 12 . 13 . 14 ) in a higher opening height or in the total opening height of the closure element ( 1 ). Method according to one of the preceding method claims, characterized in that the detection device ( 6 . 12 . 13 . 14 ) is programmable by means of a program in different operating modes. Method according to one of the preceding method claims, characterized in that when a reduced opening height of the closure element ( 1 ) the detection device ( 6 . 12 . 13 . 14 ) a recheck of the area in front of the closure element ( 1 ) on existing objects ( 11 ). Method according to one of the preceding method claims, characterized in that the range of the detection device ( 6 ) 12 ) 13 ) 14 ) and / or the detection area is adjustable or programmable. Method according to one of the preceding method claims, characterized in that the last of the detection device ( 6 . 12 . 13 . 14 ) opening height ( 10 . 16 ) as opening height ( 10 . 16 ) of the closure element ( 1 ) is formed for a reopening operation. Method according to one of the preceding method claims, characterized in that at several at different heights arranged one above the other detection devices ( 6 . 12 . 13 . 14 ) first from the lowest detection device and then from the one above Detection device, etc. for an object ( 11 ) is searched in the monitoring area and the drive device, the closure element ( 1 ) up to the opening height ( 10 or 16 ), in which the next higher detection device ( 6 . 12 . 13 . 14 ) no longer provides information content. Method according to one of the preceding method claims, characterized in that the information of the detection devices ( 6 . 12 . 13 . 14 ) are evaluated in real time. Method according to one of the preceding method claims, characterized in that the detection devices ( 6 . 12 . 13 . 14 ) monitor at least an angle of about 90 ° in a preferred embodiment an angle substantially of 120 ° in the horizontal direction.

Images