EP3330474A1 - Software-based function adjustment of a revolving door assembly - Google Patents

Abstract

A revolving door arrangement and a method for activating a second functional scope of a revolving door arrangement previously set up for a first functional scope are proposed. The revolving door assembly comprises: - a turnstile carrying a door wing, - an evaluation unit, - An interface (22) for the arrangement of an activation key (23) and - An electric drive with a stator and a rotor, the method comprising the steps of: Reading out information from an activation key (23) arranged in the interface (22), Matching the information with a predefined reference and in the case of a positive result of the matching, Activating a computer program code assigned to the second functional scope in the evaluation unit.

Description

The present invention relates to a revolving door assembly and a method for activating a functional scope of a previously set up for a different functional scope revolving door assembly.

Are known revolving door assemblies, which have an asynchronous motor with downstream transmission. In this case, a multi-stage transmission (eg worm gear, toothed belt stages) is typically used. To drive the turnstile of the revolving door assembly a multi-tooth shaft is used, which is firmly connected to the drive unit. This drive system is first installed in the ceiling construction. Then the turnstile including the door wings is mounted. A disadvantage of such an embodiment is that the revolving door assembly can not be adapted to different functional sizes, without having to replace hardware components.

It is an object of the present invention to provide a revolving door assembly which satisfies the need identified above.

The object is achieved by the features of the independent claims. The dependent claims relate to advantageous embodiments of the invention.

Thus, the object is achieved by a revolving door assembly with a turnstile. The turnstile includes at least two door leaves and is rotatable about an axis of rotation, wherein along the axis of rotation an axial direction and perpendicular to the axial direction a radial direction are defined. The revolving door arrangement comprises an electric drive, which, for example, is designed as an electronically commutated poly pole motor with a stator comprising a laminated stator core and a plurality of coils, and a rotor comprising a rotor laminated core and a plurality of permanent magnets. The rotor can be arranged coaxially with the axis of rotation and can be connected to the turnstile for direct, gearless drive. An evaluation unit is set up to carry out logical steps for the operation of the revolving door arrangement. The evaluation unit can be understood as an electronic control unit. It can be a programmable processor, a microcontroller or the like. exhibit. In addition, an interface for the arrangement of an activation key is provided and linked in terms of information technology with the evaluation unit. Finally, an electric drive with a stator and a rotor is provided, which is adapted to drive the turnstile carrying the door or wings rotationally. The method is used to activate a second functional scope of a previously set up for a first range of functions revolving door. The functions of the two functionalities differ from each other. The method comprises at least the following steps: First of all, information is read from an activation key arranged in the interface. The activation key can be designed as a data carrier. In particular, the activation key is protected against unauthorized duplication. The activation key is preferably protected against unauthorized multiple use. In this case, for example, a code stored in the evaluation unit and / or in the interface can be matched with a code contained in the activation key. If that in the evaluation unit Interface code has been assigned only once for revolving door assemblies, is ensured by the code in the activation key that the activation key can not be used with other revolving door assemblies. The information in the activation key can also include an identification of a second range of functions. In other words, the activation key refers to a functional scope for which the activation key represents a type of "authorization hardware" (similar to a "dongle"). The information can be compared with a predefined reference in the evaluation unit / in the interface or in a data storage associated with the evaluation unit or the interface information technology. In the case of a positive result of the adjustment, a computer program code assigned to the second functional scope and located in the evaluation unit, the interface or a data memory is activated. In other words, the evaluation unit is authorized to execute the computer program code belonging to the second functional scope. The computer program code may preferably already be present in the interface in (a data memory) of the revolving door arrangement prior to arranging the activation key. In this way it is avoided that the activation key must have a correspondingly high storage capacity. The activation key can be kept simple and inexpensive. In particular, it can be made robust against mechanical influences and thus reliable. The present invention enables flexible unlocking of the revolving door arrangement for different functional ranges. In particular, a revolving door arrangement initially provided for a first functional scope can be set up during the later emergence of an alternative application requirement for a second functional scope. In particular, in the case that arranging the Activation key in the interface without programming knowledge or special tool is possible, a cost-effective adjustment process to change the range of functions can be realized. Approach, departure and working hours of skilled workers can thus be made unnecessary, whereby adjustments to the scope of functions are carried out rather than if this is a high cost to operate.

The dependent claims show preferred developments of the invention.

The turnstile of a revolving door usually includes a plurality of door leaves, which are arranged in a star shape to the axis of rotation. The drive according to the invention, designed as Vielpolmotor, has a stator with a certain number of coils and a rotor. The rotor comprises a rotor core, which can be mounted on a rotor disk. Likewise, the stator comprises a stator disk, wherein a stator laminated core can be mounted on the stator disk. The stator can be composed of several disc plates. The stator disk and the rotor disk are opposite, so that between the two disks, the stator laminations and the rotor laminations are arranged. In the rotor a plurality of permanent magnets are arranged radially inwardly on the rotor core.

The interface or the activation key can be coordinated with one another such that an electrical, magnetic or optical information transfer results from the activation key to the interface or vice versa. For example. For example, the activation key may comprise electrical contacts, a magnetically readable memory or an optical storage medium. In this way, a desired balance between tamper resistance, robustness and cost can be found.

The first and second functional scope can realize different functions of the revolving door assembly. Examples are a Servomatik operation, which provides a support by a user applied forces on the door leaf, a fully automatic operation in which a manual operation of the door or the turnstile by a user is not required, a positioning machine operation in which a After passing the revolving door assembly predefined rotational position of the door or the turnstile is automatically prepared, and a rev limiter operation in which a braking torque is generated from a predefined upper limit for an allowable speed range to return the speed of the turnstile in an allowable speed range. All of the above-mentioned functional scopes can basically be realized with the hardware of a revolving door arrangement as presented above, provided that the minimum requirements of each functional scope are met by all components of the revolving door arrangement. Even if the sometimes higher-quality versions of the required components can in principle cause additional costs in individual cases, there is the potential for a price reduction or a small price increase due to increased quantities as well as due to identical parts.

Sometimes it can be provided that the operation of the revolving door assembly must be stopped before the interface can be accessed. In particular, the revolving door assembly can be disconnected from the power supply. Subsequently, the activation key arranged in the interface for releasing the second functional scope can be removed. In other words, thereby the authorization of the revolving door assembly for the execution of the second Function removed. In response, the computer program code associated with the second feature set may be disabled. In other words, the evaluation unit may fail to execute the second functional scope as soon as the activation key has been removed from the interface. Preferably, after a predefined period of time, the deactivation of the computer program code can be completed. For this purpose, for example, it can be cyclically checked whether the activation key is still arranged in the interface. If this is no longer the case, after the detection of the absence of the activation key and expiration of a predefined period of time since detection, the deactivation of the second functional scope can take place. In this way it is avoided that the activation key can be used after activation of the second range of functions in a further revolving door assembly according to the present invention for the activation of the local second range of functions.

After removing the activation key from the interface, a new activation key can be arranged in the interface. This can be done, for example, to adapt a functional scope of the revolving door assembly. Subsequently, information is read out of the new activation key arranged in the interface. The information is compared with a predefined reference and in the case of a positive result of the adjustment, a new range of functions is activated, which is represented by the computer program code located in the evaluation unit, the interface or a data memory connected to the evaluation unit or the interface.

To avoid theft of the activation key or to avoid vandalism, an access authorization check can be provided before the interface is released. For example. For example, a closure may be provided for the interface, which is protected by a lock cylinder against unauthorized access. Also a numeric code, an electromagnetic identifier o. Ä. can be queried before an activation key can be placed in the interface or removed from the interface.

According to a second aspect of the present invention, a revolving door arrangement is proposed which comprises an evaluation unit, an interface for arranging an activation key, a data memory and an electric drive. The evaluation unit can be used as an electronic control unit, as a microcontroller, programmable processor o. Ä. be designed. The data memory may, for example, be a RAM / ROM memory unit. The electric drive may comprise a stator and a rotor. The evaluation unit is set up to read out information from an activation key arranged in the interface by means of the interface, to compare the information with a reference predefined in the data memory and, in the case of a positive result of the adjustment, to activate a computer program code assigned to the second functional scope. In particular, the computer program code may already be present in the revolving door arrangement. Only its execution is initiated or released by the information contained in the activation key. In other words, the revolving door assembly according to the invention is arranged to carry out a method as has been described above in detail in connection with the first-mentioned aspect of the invention. The features, feature combinations and the can be seen from these resulting advantages such apparent those of the method according to the invention that reference is made to avoid repetition of the above statements.

The stator of the electric drive may be provided for fixed mounting. In particular, it may be arranged to be fastened to a ceiling (eg a suspended ceiling and / or a concrete ceiling). The stator may be arranged on the axis of the door cross in such a way that together with the rotor it forms an air gap arranged coaxially with the axis of the turnstile. In other words, preferably no transmission is provided between the drive and the turnstile. As a result, a backlash-free kinematic relationship between the drive and the turnstile is given, which is why all of the aforementioned functional scopes can be activated by mere adaptation of the respectively activated computer program codes by means of the respective activation key.

The revolving door assembly may further comprise a frequency converter, which preferably also has the evaluation unit and an output stage for controlling the electric drive. The evaluation unit is set up to realize a parameter of an electrical signal for controlling the electric drive by means of a pulse width modulation. Depending on which computer program code is activated, the pulse width modulation for controlling the drive can be adjusted according to the first or the second range of functions. In other words, another control behavior can be realized by the changed computer program code. The frequency converter is set up to control the output stage with a multi-phase representation of the electrical signal as a function of the pulse-width-modulated signal. In other words, a power signal using the Output stage can be generated, which allows energization of the drive in response to an output signal of the evaluation. The components required for operating the revolving door arrangement according to the invention can thus be matched to one another in the best possible way. Preferably, they can be arranged in a common housing. The housing may include the frequency converter, the power amplifier and the evaluation unit. The housing may have a (in particular common) connection for an operating voltage of the aforementioned components. In particular, the drive can be supplied with electrical energy via the operating voltage. The interface can also be arranged in the housing. The same applies to the optionally provided access authorization check device.

The evaluation unit can be set up to determine a current speed, a current position and / or a current speed of the turnstile based on a position sensor in the electric drive. The position sensor may have at least one, preferably two, in particular three or more Hall sensors. The position sensor can also have an encoder on the rotor of the drive. This can be used as part of a learning journey to identify an absolute turnstile position. It can also have a magnetic mode of action (eg a permanent magnet in conjunction with a Hall sensor). The Hall sensors may in particular be arranged in the stator of the electric drive and be configured to generate a signal depending on an alternating magnetic field generated by means of the rotor, by means of which the positioning, the rotational speed and / or the actual speed of the rotor (and thus of the turnstile) to be determined. The electric drive can be designed as a brushless motor. The result is a highly efficient electric drive and optionally an exact positioning of the rotor by means of the method according to the invention.

The present invention enables flexible software control of the same hardware configuration of a revolving door assembly. The software control allows different functional sizes for the revolving door assembly.

In the prior art, the various drive variants have hitherto been realized by separate hardware combinations of control, power supply and transmission. In some cases, the control, power supply, gearbox combinations were also changed for a single operating mode, for example when extra-large doors had to be moved. For example. For example, a power pack with a higher rating was installed in an existing revolving door assembly as soon as it was ready to be fully automated. Correspondingly, even more powerful engines could be installed in revolving door arrangements if they had to be converted from a functional range of low electrical power consumption to fully automatic operation. The present invention provides a hardware-neutral reconfiguration in favor of a software-based configuration of the respective drive variants. This is cheaper and more flexible than in the prior art.

For the purposes of the present invention, servo-assisted operation means assistance by generating a motor torque in response to a user operating / inspecting the revolving door assembly. The detection can be sensory.

Fully automatic operation means the use of a presence sensor (eg radar sensor, safety sensor, infrared sensor, laser scanner, optical sensor or the like) for initiating a (purely) motorized drive of the turnstile.

For the purposes of the present invention, software for various operating modes is integrated into the product before it is delivered to the customer. On delivery, however, not all programs can be called up. The invention proposes an interface via which an authorization check is carried out for the execution of alternative (in particular higher-order) functional scopes. The invention does not exclude that modifications of the hardware accompany (must) the software technical adaptation of the revolving door arrangement. For example. sometimes more sensors are required to use a revolving door assembly in a fully automated operation.

Fig. 1

eine Karusselltüre einer erfindungsgemäßen Karusselltüranordnung gemäß einem Ausführungsbeispiel,

Fig. 2

die Karusselltüranordnung,

Fig. 3

wesentliche Bestandteile der Karusselltüranordnung in einer Explosionsdarstellung,

Fig. 4

eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Schnittstelle mit einem Ausführungsbeispiel eines erfindungsgemäßen Freischaltungsschlüssels,

Fig. 5

ein Flussdiagramm veranschaulichend Schritte eines Ausführungsbeispiels eines erfindungsgemäßen Verfahrens, und

Fig. 6

ein Blockschaltbild eines Ausführungsbeispiels einer erfindungsgemäßen Karusselltüranordnung.

The invention will be explained in detail with reference to the accompanying drawings. Showing:

Fig. 1

a revolving door of a revolving door arrangement according to the invention according to an embodiment,

Fig. 2

the revolving door arrangement,

Fig. 3

essential components of the revolving door arrangement in an exploded view,

Fig. 4

a perspective view of an embodiment of an interface according to the invention with a Embodiment of an activation key according to the invention,

Fig. 5

a flowchart illustrating steps of an embodiment of a method according to the invention, and

Fig. 6

a block diagram of an embodiment of a revolving door assembly according to the invention.

Fig. 1 shows an isometric view of a revolving door assembly 1. The revolving door assembly 1 comprises a turnstile 2. This hub 2 has four door leaves 3. The door leaves 3 are each angled at 90 ° to each other. The turnstile 2 is arranged rotatably about a rotation axis 4. The axis of rotation 4 extends in the axial direction 5. Perpendicular to the axial direction 5, a radial direction 6 is defined. Around the axial direction 5, a circumferential direction 7 is defined.

On the turnstile 2, a drive 8 is arranged. This drive 8 is designed as electronically commutated Vielpolmotor. The rotor 17 (s. Fig. 2 ) This drive 8 is connected coaxially to the axis of rotation 4 with the turnstile 2. This allows the drive 8 a direct and gearless drive the turnstile. 2

Fig. 2 shows a section through the revolving door assembly 1. From the revolving door assembly 1, only the drive 8 is shown.

The drive 8 comprises a stator 10 and the rotor 17. Like Fig. 1 shows, the drive 8 is arranged above the turnstile 2. In this case, the rotor 17 is located between the turnstile 2 and the stator 10.

Fig. 2 shows a rotatably connected to the rotor 17 connecting element, designed as a multi-toothed shaft. About this connecting element, the turnstile 2 is rotatably connected to the rotor 17.

The stator 10 comprises a stator disk 12. A stator laminated core 11 is arranged on the outer circumference of the stator disk 12. The individual coils 13 of the stator 10 are stuck on this stator laminated core 11.

Each coil comprises a bobbin 14, for example made of plastic. On this bobbin 14 are the windings 15 of the single coil thirteenth

The rotor 17 comprises a rotor disk 43. This rotor disk 43 lies opposite the stator disk 12. Between the two discs 43, 12, the laminated stator core 11 is arranged with the coils 13. At the outer periphery of the rotor disk 43, a rotor core 18 is arranged. Radially within the rotor core 18, a plurality of permanent magnets 19 are arranged on the rotor core 18.

In the region of the axis of rotation 4, a thrust bearing 20 and a radial bearing 21 are formed between the stator 12 and the rotor disk 43. In the illustrated embodiment, the thrust bearing 20 and the radial bearing 21 are formed as sliding bearings.

In Fig. 2 Furthermore, an embodiment of a frequency converter 25 is shown, which has a connection 27 for an operating voltage. Within the frequency converter 25 are an evaluation unit 9, a motor-IC 36 (integrated circuit for drive control) and a Output stage 26 is provided for controlling the drive 8. The evaluation unit 9, the motor IC 36 and the output stage 26 are used in conjunction with Fig. 6 discussed in more detail.

The in Fig. 1 shown drive 8 is part of the revolving door assembly 1. This revolving door assembly 1 is in section in Fig. 2 shown. The revolving door assembly 1 includes, in addition to the drive 8, an adapter unit 101. This adapter unit 101 is used for mounting the drive 8 to a superordinate ceiling construction 103. In the example shown, the ceiling construction 103 comprises two parallel horizontal beams.

The adapter unit 101 comprises at least one ceiling mounting element 102. This is formed here as a right angle bent angle. The ceiling fastening element 102 is fastened in the profiles of the ceiling construction 103 via a screw connection and corresponding sliding blocks.

The adapter unit 101 further comprises an adapter plate 107. With this adapter plate 107, the ceiling mounting member 102 is firmly connected, for example, welded.

At the periphery of the adapter plate 107 a plurality of fixing elements 104 of the adapter unit 101 are attached. These fixing elements 104 each serve to secure a suspended ceiling element 105.

The adapter unit 101 further comprises at least one drive fastening element 106. This is designed here as a screw connection and serves for fastening the drive 8 to the adapter unit 101, in particular to the adapter plate 107.

Fig. 2 and 3 show preferred Vorfixiereinheiten 110. These Vorfixiereinheiten 110 here include a snap hook. This makes it possible to lift the drive 8 from below to the adapter plate 107. In this case, the pre-fixing units 110 engage and the drive 8 is pre-fixed to the adapter unit 110. Then designed as screw driving fasteners 106 can be set.

Furthermore, the illustration in FIG Fig. 3 a preferred connection recess 111 in the adapter plate 107. About this connection recess 111 is an electrical contact, in particular one or two connectors within the drive 8 accessible from above.

The drive 8 has position sensors 28 in the form of Hall sensors, which are arranged on the circumference of the stator. The position sensors 28 are arranged to detect (not shown) position sensor on the (not shown) rotor and to report a rotational position of the drive 8 to the (not shown) evaluation unit.

Fig. 4 shows a perspective view of an evaluation unit 9, which has a data memory 24. Behind a flap 44, which can be locked by means of a lock cylinder 29 as Zugangbeferechtigungsprüfeinrichtung, an interface 22 is provided, which has electrical contacts which correspond to the electrical contacts of an activation key 23. If the activation key 23 is inserted into the interface 22, the evaluation unit 9 can activate a functional scope assigned to the information in the activation key 23 for the revolving door arrangement and operate the revolving door arrangement accordingly.

Fig. 5 shows a flowchart illustrating steps of an embodiment of a method according to the invention for the activation of a second functional scope of a previously set up for a first functional scope revolving door assembly. First, it is advantageous to transfer the system to a standstill. In step S100, a key is then inserted into a lock cylinder as an access authentication device and turned over to release the interface by opening a door. Subsequently, an activation key is inserted into the interface and, in step S200, information is read out of the activation key arranged in the interface. In step S300, the information is compared with a predefined reference and, in the case of a positive result of the adjustment in step S400, a computer program code assigned to the second functional scope and already present in the evaluation unit is activated. In step S500, the operation of the revolving door assembly is first stopped and the revolving door assembly is de-energized. In step S600, an enabling key located in the interface is first removed. After a predefined period of time has elapsed, in step S700 the deactivation of the computer program code assigned to the second functional scope takes place in the evaluation unit. In step S800, a new release key is placed in the interface, in step S900 information is read from the new release key located in the interface, and in step S1000 the information is compared with a predefined reference in the evaluation unit or a data memory linked to the evaluation unit by information technology. After the result of the matching has been classified as positive, in step S1100, a new one is assigned to the new functional scope, located in the evaluation unit Computer program code activated, thereby upgrading the revolving door assembly made.

Fig. 6 shows a block diagram of an embodiment of a revolving door assembly according to the invention. Via a connection 27, an operating voltage of 24V is connected to the electrical system. A DC / DC converter 41 feeds a microcontroller as the evaluation unit 9 with a voltage of 5V or optionally 3.3V. In addition, the operating voltage is applied via a diode 42 to a motor IC 36 and an output stage 26 for energizing the stator 10. The motor voltage may, for example, lie in a predefined range. The microcontroller may have further input variables (not shown). For example. For example, the Hall sensors can be connected to the microcontroller for determining a rotational position of the drive. The microcontroller provides pulse width modulated signals for controlling the output stage to the motor IC 36. These also have a level of 5V or 3.3V. The pulse width modulated signals are used to control the three phases U, V, W of the stator 10 z. B. with 6 signals U_H, U_L, V_H, V_L, W_H, W_L (H - high, L - low). Moreover, a control line 39 and an error reporting line 40 are provided between the microcontroller and the motor IC 36. By means of the motor IC 36 high / low signals with adjusted voltage levels GH_U, GL_U, GH_V, GL_V, GH_W, GL_W for driving the MOSFETs of the output stage 26 can be output. Moreover, the motor IC 36 is used for short-circuit prevention for the control of the output stage 26. In other words, it is avoided that arranged in a common bridge branch transistors of the output stage 26 are simultaneously turned on and the power amplifier thereby takes damage. The drive signals GH_U, GL_U, GH_V, GL_V, GH_W, GL_W are also pulse-width-modulated signals executed. However, the respective high (H) signal substantially represents the respective level reversal of the low (L) signal for the phases U, V, W, with a dead time for avoiding the abovementioned short circuit between the edges of the signals. The microcontroller, the motor IC 36 and the output stage 26 are shown as components of a frequency converter 25, the components of which can be arranged in a common housing. In particular, the components of the frequency converter 25 may be arranged on a common board.

LIST OF REFERENCE NUMBERS

1

Revolving door arrangement

2

turnstile

3

door

4

axis of rotation

5

axially

6

radial direction

7

circumferentially

8th

drive

9

evaluation

10

stator

11

stator lamination

12

stator

13

Do the washing up

14

bobbins

15

winding

17

rotor

18

Laminated core

19

permanent magnets

20

thrust

21

radial bearings

22

interface

23

Activation Key

24

data storage

25

frequency converter

26

final stage

27

Connection for operating voltage

28

position sensor

29

lock cylinder

36

Engine IC

39

control line

40

Error Reporting

41

DC / DC converter

42

diode

43

rotor disc

44

flap

101

adapter unit

102

Ceiling bracket

103

ceiling construction

104

fixing element

105

Under floor units

106

Drive fasteners

107

adapter plate

110

loading fixture

111

connection recess

112

cover plate

Claims (12)

A method for activating a second functional scope of a revolving door system previously set up for a first functional range, the revolving door arrangement comprising: - a turnstile carrying a door wing, - an evaluation unit, - An interface for the arrangement of an activation key
and - An electric drive with a stator and - a rotor the method comprising the steps of: Reading out (S200) information from an activation key (23) arranged in the interface (22), Matching (S300) the information with a predefined reference and in the case of a positive result of matching, - Activation (S400) of the second functional scope associated in the evaluation computer program code. The method of claim 1, wherein the interface is the information - electrically and / or - magnetic and / or - visually from the activation key (23). Method according to claim 1 or 2, wherein the first functional scope and the second functional scope correspond to non-identical entries from the following group: - Servomatik operation, - fully automatic operation - automatic positioning, - Speed limiter operation. Method according to one of the preceding claims further comprising the steps: - stopping (S500) an operation of the revolving door assembly - removing (S600) the in the interface (22) arranged release key (23) and in response thereto - Disabling (S700) of the second functional scope associated computer program code in the evaluation unit (9), in particular after the expiry of a predefined period of time. Method according to one of the preceding claims further comprising the steps Arranging (S800) a new activation key in the interface (23) Reading out (S900) information from the new activation key arranged in the interface, Matching (S1000) the information with a predefined reference and in the case of a positive result of the matching, - Activation (S1100) of a computer program code assigned to the new functional scope located in the evaluation unit. Method according to one of the preceding claims further comprising - Execute (S100) an access authorization check before releasing the interface. Revolving door assembly comprising an evaluation unit (9), an interface (22) for arranging an activation key (23), a data memory (24) and - An electric drive with a stator and - a rotor wherein the evaluation unit (9) is set up to read out information from an activation key (23) arranged in the interface by means of the interface (22), to compare the information with a predefined reference in the data memory 24 and in the case of a positive result of the matching, to activate a computer program code assigned to the second functional scope. Revolving door arrangement according to claim 7, which is arranged to carry out a method according to one of the preceding claims 1 to 6. Revolving door arrangement according to one of claims 7 or 8, wherein the stator is designed for fixed mounting, in particular for ceiling mounting, and with the rotor forms a coaxial with the axis of rotation of the hub arranged air gap. Revolving door arrangement according to one of claims 7 to 9 further comprising - A frequency converter (25) comprising the evaluation unit (9) - An output stage (26), wherein - the evaluation unit (9) is set up,
to realize a parameter of an electrical signal for driving the drive according to the first and the second functional scope by means of a pulse width modulation, and - The frequency converter (25) is set up, depending on the pulse width modulated signal - To control the output stage (26) with a multi-phase representation of the electrical signal. Revolving door assembly according to claim 10 further a connection (27) for an operating voltage and - A housing (31), which - the frequency converter (25), - the final stage (26) and - the evaluation unit (9) wherein, in particular, the connection (27) for the operating voltage is set up to supply the evaluation unit (9), the frequency converter (25) and the output stage (26) with electrical energy. Revolving door arrangement according to one of claims 7 to 11, wherein the evaluation unit (9) is arranged on the basis of a position sensor (28), in particular a Hall sensor in the electric drive - a current speed and / or - a current position and / or - a current speed of the turnstile (2).

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