DE102010009371B4 - Gate and method for controlling and calibrating the gate - Google Patents

Abstract

Gate (130), in particular lifting or rolling gate, wherein the gate (130) is defined movable and the gate (130) has an opening and an associated termination, so that for an object (110) on a Zuwegung (120) passing through the opening is made more difficult and the closure when opening the gate (130) releases the opening, so that when opened at a time for the object (110) the opening is freely passable, characterized in that at the gate a transmitter (152 , 158) which emits a signal in the direction of the passage (120) and the signal can be evaluated by a receiver (144, 146).

Description

The invention relates to a gate, in particular lifting or rolling gate, wherein the gate is defined movable and the gate has an opening and an associated conclusion, so that for an object on a route passing through the opening is difficult and the conclusion when opening the Tores the opening releases, so that when opening at a time for the object, the opening is freely passable.

In the case of lift or roller doors, the gate is generally opened completely so that a car can pass unhindered. As a result, the gate is often opened wider than would be necessary to safely pass a car. This leads to increased material stresses as well as longer waiting times for the driver of the car, since the access to the gate is generally released only when the gate is fully open.

A task that can be deduced from this could be achieved by mounting a camera near the gate, which records or photographs the object passing the door. Based on this record or the photo could be concluded by mathematical calculations on the size of the object. From this, an opening height for the gate could be derived.

A disadvantage of such a system is that very expensive materials are used, and complicated calculation methods for determining the extent of the object are necessary, since the distance of the object to the camera generally changes or is not constant.

The object of the invention is to improve the state of the art.

The object is achieved by a gate, in particular lifting or rolling gate, wherein the gate is defined movable and the gate has an opening and an associated conclusion, so that for an object on a route passing through the opening is difficult and the conclusion of a Opening the gate releases the opening so that when opening at a time for the object, the opening is freely passable, wherein at the gate, a transmitter is mounted, which emits a signal in the direction of the movement and the signal is evaluated by a receiver.

As a result, when opening the gate, the transmitter and thus the signal emitted by it are changed so that an object located on the way can be scanned by the signal. This signal can be evaluated, whereupon the height of the object is closed.

The following conceptual is anticipated here.

A "gate" includes all doors, gates and barriers that can be opened by a sliding, rotating, rotating or pendulum mechanism. In particular, sliding doors, high-speed doors, roller doors, overhead doors and overhead doors are included.

The "termination" can in particular be formed by an edge or a lower region of the door. In the case of a lifting or rolling door in particular the conclusion is the lower edge of the movable gate.

In order to evaluate an evaluable signal over the entire opening range of the gate, the transmitter can be attached to the termination. Thus, when the door is opened, the entire opening area can be scanned by the signal.

In one embodiment, the transmitter broadcasts a directional signal. This can avoid interference. In addition, a transmission signal strength can thereby be minimized since the emitted signal only samples the region of interest.

To provide alternative transmitters, the transmitter may emit a light signal, an ultrasonic signal, a radio signal or the like.

In a further embodiment, the transmitter has a laser and / or a light-emitting diode. In this case, the receiver is designed as an optical detector. The laser or the light emitting diode can operate in the visible as well as in the infrared or ultraviolet range. Thus, a cheaper and directionally stable transmitter can be provided.

Both the property of a laser as a point light source and the beam characteristic of a light-emitting diode are advantageous, wherein the beam characteristic of the light-emitting diode can be designed in particular club-shaped.

In order to detect irregularities in the height distribution of the objects, the signal may lie in a vertical or a horizontal plane. This can be achieved, in particular, by assigning a cylindrical lens to the laser or the light-emitting diode which splits the light to be emitted in such a way that a plane can be scanned by the signal.

In another embodiment, the signal is aligned parallel to the path. As a result, the horizontal plane can be scanned parallel to the access path when opening the door, wherein the access may in particular have a gradient.

In order to ensure a spatial resolution of the receiver, this may have a horizontal and / or vertical orientation. In particular, the receiver may extend over the entire width of the door.

To provide alternative transmitter-receiver combinations, the receiver may be located directly. Particularly preferred is an indirect arrangement. In both alternatives, in the presence of the object, the signal is received or not received accordingly. Thus, both a light barrier solution can be provided and a signal reflected by the object can be detected.

The preferred case of "indirect reception" is given in particular when the signal sent by the transmitter is reflected by the object and thus directed to the receiver.

In this case, a "direct reception" is to be understood in particular as meaning that the signal sent by the transmitter hits the detector in the event that there is an unhindered beam path.

Furthermore, the receiver can be arranged stationary. In this case, "stationary" means that the receiver is not attached to the movable parts of the door. In this stationary arrangement, for example, be attached to the static frame of the door of the receiver or a light barrier arrangement can be realized.

In a particularly preferred embodiment, the receiver is arranged at the gate. Detection alternatives can be provided with this and the stationary arrangement.

In the event that the receiver is mounted on the gate, in particular the signal reflected by the object is detected by the receiver.

In order to limit the opening of the door defined, the gate may have a gate control, which controls the opening and closing of the gate.

In a further embodiment, the gate may have a controller in which a control algorithm is implemented and which is connected to the receiver and the gate control so that the gate control can be controlled on the basis of a measured value of the receiver.

• - bei einem Öffnen des Tores wird abhängig von einer Toränderung ein Signal in einer Zuwegungsrichtung ausgesendet, sodass eine horizontale und/oder vertikale Änderung des Signals erfolgt und anschließend von einem Empfänger ausgewertet wird;
• - das Öffnen des Tores gestoppt wird, sobald eine maximale Ausdehnung eines Objekts überschritten ist, sodass ein Zugang zu einer Öffnung unbehindert von dem Objekt passierbar ist.

In a further aspect, the object is achieved by a method for controlling a defined movable gate, wherein the method comprises the following steps:

• - When opening the gate, a signal is sent in a Zuzugsungsrichtung depending on a gate change, so that a horizontal and / or vertical change of the signal takes place and is then evaluated by a receiver;
• - The opening of the gate is stopped as soon as a maximum extent of an object is exceeded, so that access to an opening is freely passable from the object.

This can shorten the time until the object can pass through the opening. In addition, the gate control can be relieved, which can lead to an extension of the life or maintenance period.

The following concept is explained:

A "gate change" occurs when the gate opens or closes.

In another embodiment, the gate is stopped with a time delay, so that a Öffrangstoleranz is given. This opening tolerance can result from both a time delay and by a certain height specification, wherein the height specification can be calculated based on the opening speed of the gate.

In order to use a gate optimally designed for the method, the method can be carried out with a gate described above.

In a further aspect, the object can be achieved by a method for calibrating a gate described above, wherein when opening the door object-free a signal waveform of the transmitter is detected by the receiver and stored in a recording device, so that, in the case that an object in a move is detected, a difference to the recorded waveform is detectable.

Thus, from the difference of an object-free opening and an opening of the gate in front of an object on the dimensions of the object can be concluded. From this, the opening height or opening width of the door can be determined.

In addition, the invention with reference to an embodiment with the aid of the single 1 described.

It represents the 1 a vehicle on a way to an opening roller shutter dar.

A car 110 is located on a sloping path 120 in front of a closed roller shutter 130 , Is by the car 110 Opening the roll-up door 130 initiated, sends in the lower part of the roll-up door 130 located transmitter 152 . 158 a signal in the direction of the road 120 ,

In a first and preferred alternative, the receiver (not shown) is like the transmitter 152 . 158 in the lower part of the roller shutter 130 appropriate. In this case, those of the sender 152 . 158 sent out and from the car 110 reflected signals detected by the receiver.

Unless there are any reflected signals from the transmitter 158 more is detected, a tolerance allowance is added 160 at the opening of the gate 130 added and then the gate 130 stopped. The car 110 the opening that forms can pass unhindered.

In a second alternative is the light transmitter 152 an optical receiver 144 assigned. The optical receiver 144 has a vertical orientation, as well as the opening height of the roll-up door 130 equivalent. Is there a car? 110 between the light transmitter 152 . 158 and the receiver 144 , the roller door opens 130 until the maximum vertical extent of the car 110 is exceeded. In addition, a tolerance level 160 added for security purposes.

In a third alternative is the receiver 146 stationary next to the roller shutter 130 appropriate. In this case, those by the transmitter 152 . 158 sent out and from the car 110 reflected signals through the receiver 146 detected. Once the recipient 146 no reflected signals detected, the roller shutter 130 after a tolerance allowance 160 stopped and the car 110 can happen.

To calibrate the gate 130 be the signals at the detectors 146 . 144 or at the conclusion of the gate 130 attached detector (not shown) evaluated, during the complete opening of the gate 130 ,

In this case, height-dependent signals are transmitted by the transmitter 152/158. These from the receivers 146 . 144 evaluated signals are stored in a memory of a controller.

Will the gate 130 in front of an object 110 opened, is calculated from the difference of the current through the detectors 146 . 144 determined and the stored values on the height extent of the object 110 closed.

Claims (16)

Gate (130), in particular lifting or rolling gate, wherein the gate (130) is defined movable and the gate (130) has an opening and an associated termination, so that for an object (110) on a Zuwegung (120) passing through the opening is made more difficult, and the closure when opening the gate (130) releases the opening, so that when opened at a time for the object (110) the opening is freely passable, characterized in that at the gate a transmitter (152 , 158) which emits a signal in the direction of the passage (120) and the signal can be evaluated by a receiver (144, 146). Go to gate Claim 1 , characterized in that the transmitter is attached to the termination. Gate according to one of the preceding claims, characterized in that the transmitter emits a directional signal. Door according to one of the preceding claims, characterized in that the transmitter emits a light signal, an ultrasonic signal or a radio signal. Go to gate Claim 4 , characterized in that the transmitter comprises a laser and / or a light emitting diode. Door according to one of the preceding claims, characterized in that the signal lies in a vertical or a horizontal plane. Door according to one of the preceding claims, characterized in that the signal is aligned parallel to the Zuwegung. Door according to one of the preceding claims, characterized in that the receiver has a horizontal and / or vertical orientation. Gate according to one of the preceding claims, characterized in that the receiver is arranged indirectly so that it receives the signal in the presence of the object. Door according to one of the preceding claims, characterized in that the receiver is arranged at the gate. Door according to one of the preceding claims, characterized by a gate control, which controls the opening and closing of the gate. Go to gate Claim 10 characterized by a controller in which a control algorithm is implemented and which is connected to the receiver and the gate controller so that the gate control is controllable on the basis of a measured value of the receiver. A method of controlling a defined movable gate, the method comprising the steps of: - When opening the gate, a signal is sent in a Zuzugsungsrichtung depending on a gate change, so that a horizontal and / or vertical change of the signal takes place and is then evaluated by a receiver; - The opening of the gate is stopped as soon as a maximum extent of an object is exceeded, so that access to an opening is freely passable from the object. Method according to Claim 13 , characterized in that the stopping of the gate is delayed in time, so that an opening tolerance (160) is given. Method according to one of Claims 13 or 14 , characterized in that the method with a gate according to one of Claims 1 to 12 is carried out. Method for calibrating a gate according to one of Claims 1 to 12 , characterized in that when opening the door object-free, a signal waveform of the transmitter is detected by the receiver and stored in a recording device, so that, in the case that an object is in the path, a difference to the recorded waveform is detected.

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