Door drive with automatic access control

0001The invention relates to a door drive, in particular for industrial doors, Garage doors and / or gates for enclosures, with a drive unit for opening and / or closing of the door, control means for assigned controlling the drive unit and a control device Access control means for performing an identification of an inlet person requesting or an intake desiring vehicle and automatically initiating a Toröffnungsbewegung when the identification the person or the vehicle identifying them as authorized, the Access control means an associated motor drive unit stationary unit and one of the person or the vehicle associated mobile unit comprises and the passenger or vehicle identification through Sending and receiving coded signals between these units takes place.

0002Such Torantriebe are widely used in the prior art. to convenient control of the door drive eg from the driving position of a vehicle from being able to perform, have nearly all currently on the market located Torantriebe on the possibility of a remote control. It is the vehicle is a mobile unit in the form of a hand-held radio transmitter or a associated in or on the vehicle installed transmitter. If a button pressed this station, it sends a coded signal from which a the door operator associated stationary unit in the form of a Radio receiver is received. Fits the code of the signal transmitted with a value stored in the receiver code together, so will automatically triggers Toröffnungsbewegung. Pressing a button a legitimate sender is thus the driver or his car as identified entitled. This fashion is Torantriebssteuerung already very comfortable. However, the driver has been the Torantriebssteuerung press the button on the transmitter, which is why he his hand must take off the wheel and briefly distracted from the traffic is. This might at entrances, what one may be must classify and must operate the turn signals and oncoming must pay attention and following traffic, lead to dangerous situations.

0003It is therefore an object of the invention to provide a door drive of the aforementioned Type so that it at such exceptionally convenient operation avoid dangerous situations helps.

0004This is achieved in that the access control device a proximity detection means for automatically detecting a Approximating a person or a vehicle having such a way and is adapted to automatically upon detection of such an approaching the identification is carried out, whereby, when a person approaches or Vehicle, or is associated with the mobile unit automatically Gate opening occurs.

0005Through these measures a fully automatic door operator is provided with the one a gateway desiring driver for not driving must be more active. Due to the proximity sensing device is therefore be approaching or that of his vehicle automatically detected. Nevertheless, the door drive against unauthorized entry secured because the Torantriebssteuerung takes place only after an identification on sending and Receiving has been carried out of code signals. These Personal identification and vehicle identification is carried out at the Proximity detector Gathered approximating completely automatic performed.

0006Advantageous embodiments of the invention are subject of Subclaims.

0007Thus, the proximity detection means in the form of the entrance gate monitoring movement sensor present. Such a motion sensor could be designed for. instance, that he was not any movement of a eg heat-emitting object or a wärmeaustrahlenden Person detected, but actually only outputs a proximity signal, if the object or the person toward the goal emotional. The same function can also be one or more light barriers, or one or more contact thresholds, contact mats or the like in meet Toreinfahrtsbereich on the ground located contactors. The Proximity detector may with one or with several Such proximity sensors may be provided. In an alternative advantageous Configuration is the proximity detection device without such separately to be mounted in proximity sensors. Here it is provided that proximity sensing means to the mobile and / or stationary Unit is connected and at least one of the two units for permanent or at certain intervals occurring sending a Measuring signal causes, with the other unit for receiving and Recognition of the measurement signal is formed and a signal evaluation including that based on the received measurement signal or reference to an in intervals occurring multiple reception of the measured signal - in particular using the signal strength and / or based on Doppler effects - a relative approach of the measurement signal transmitting unit detects. The stationary unit is preferably a radio receiver or radio transceiver. The mobile unit preferably comprises a hand-held radio transmitter, a remote control or a mobile radio transceiver.

0008Embodiments of the invention are hereinafter with reference to the Accompanying drawings explained in more detail. Therein:<dl tsize="8"><dt>figure 1</dt><dd>an outlined side view of a garage with a driveway approaching to the gate entrance legitimate vehicle and</dd><dt>figure 2</dt><dd>a plan view of another gate.</dd></dl>

0009A door operator, generally designated 10 for opening and / or closing a garage door 12 includes a motor drive unit (M) in the form of a The electric motor 14 a control device S in the form of a software programmable control circuit and an access control device 18. The access control device 18 includes a with Control circuit 16 associated stationary unit C for sending and Receiving encoded radio signals and the gateway to authorized vehicle 20 or its driver assigned mobile unit E for sending and receiving coded signals to the stationary unit C includes a transceiver 22 in the mobile unit E form a hand-held radio transceiver or a built-in vehicle Vehicle transceiver 24 via exchange appropriate radio signals Code communicates.

0010The function of the door drive 10 stylized in Figure 1 shown in the first Embodiment will be explained in more detail below. stationary Transceiver transmits at predetermined intervals, for example every 15 seconds, a Measurement signal from 26th This measurement signal 26 is from which the vehicle received 20 approaching mobile transceiver 24th The mobile Transceiver 24 comprises a signal evaluation circuit (A), the part of a Proximity sensing device 28 is. The signal evaluation circuit (A) compares the field strength of several successively received measurement signals 26 and outputs, when the field strength increases, a proximity signal to the mobile transceiver from 24th The mobile transceiver 24 sends Then, a code signal 30, the stationary transceiver 22 receives. With matching code of the code signal 30 is then by the Control circuit 16 of the motor 14 is driven to open the door 12th Various modifications of this embodiment are possible, all of the contain basic principle, based on transmitted and received signals - Which are at the same time also be used as code signals for opening the gate - A relative movement between the respective transmitters and receivers 22, 24, namely an approaching thereof, determine realize. This would also for example, via the detection of frequency shifts (Doppler effect) conceivable.

0011The entrance gate of Figure 2 differs from that of Figure 1 assigned by the gateway 34 proximity detector 32. The Näherungserfassugnseinrichtung 32 includes a light barrier 36, a Contact threshold 38 or a motion to 40, wherein in the Example for illustrative purposes of simplicity, all shown these devices are shown, although in practically realized Versions of these devices 36, 38, 40 may be sufficient.

0012The light barrier 36, the contact threshold 38 and the motion sensor 40 are each adapted to receive a approaching a vehicle (or a determine person) to the gate 12 and with such an approach dispense signal to the control circuit sixteenth The control circuit 16 then causes the stationary transceiver 22, a Code interrogation signal 42 34 inside submit in the area of ​​the gate. the authorized mobile transceiver 24 is in the range of Gateway, so it receives the code interrogation signal 42 and sends a proper code response signal 44, upon receipt thereof, the control circuit 16 a Toröffnungsbewegung via the motor 14 initiates.

0013There may be various additional measures to establish a ersehentliches Open at approximating an unauthorized vehicle and Presence of the mobile transceiver 24 in the vicinity of the Doorway to avoid 34th Such measures may for example consist in that radio equipment notice of where her code the response signal 44 Sending and prevent Toröffnungsbewegung when the Code response signal 44 not from the immediate area of ​​the doorway 34 carried out. On the other hand, the two could embodiments be combined with each other so that only one door opening takes place when at the same time a relative movement of the mobile and the stationary unit is determined by the signal evaluation A. Finally, could the mobile transceiver 24 to the electrical system of the vehicle 20 and be connected in particular to its ignition, so that only a Code reply signal is output 44 when the ignition of the vehicle is turned on. Advantageously, a code signal exchange via other his media than radio, for example via optical signals only at a suitable Orientation of the vehicle 20 in the gateway 34 can be received.

0014Some aspects of the door drive described herein are the following from the representation of Figure 2 again summarized:

0015There is a door drive, in particular for industrial doors, garage doors (12) been and / or gates for enclosures described, with a Drive unit (M) for opening and / or closing of the gate (12), a Control means (S) for controlling the drive unit (M) and one of the Control means (S) associated with the access control means (18) for Performing an identification of an intake person requesting or Driveway desiring vehicle (20) and for automatically initiating a Toröffnungsbewegung when the identification of the person or the vehicle (20) identifying them as authorized, the access control device (18) to Motor drive unit (M) associated with the stationary unit (22, C) and a of the person or the vehicle (20) associated with the mobile unit (24, E) includes and the persons or vehicle identification through sending and Receiving encoded signals (42, 44) between these units (22, 24). To a very comfortable, yet safe operation to allow, it is proposed that the access control means (18) a Proximity sensing means (28, 32) for automatically detecting a Approximating a person or a vehicle (20), and in such a way is adapted to automatically upon detection of such a Annähems the identification is carried out, whereby, when a person approaches or Vehicle (20) or the mobile unit (24, E) is associated, automatically a door was open.