EP2189950A1 - Access control system - Google Patents

Abstract

The system has an inner unit (1) connected with an outer unit (26) by a cable (20). The inner unit has a power supply unit (16) that is connected to a network connection (15) at an input side and produces reduced voltage at an output side. The inner unit has a non-isolated relay (10) for controlling a door closure (43) of an access door. The inner unit is provided with an evaluation, processing and storing unit (5). The relay applies the reduced voltage to the door closure during controlling by the evaluation, processing and storing unit.

Description

The invention relates to an access control system according to the preamble of claim 1.

• Einschränkung/Verhinderung von unautorisiertem Zutritt von Personen,
• Überwachung/Kontrolle von Personenbewegungen.

An access control system is a system that allows access to rooms or buildings without the use of a conventional key (door key, front door key). Instead, access is controlled in the form of a digital locking system using transponder (RFID) or fingerprint or PIN code or Bluetooth technology (Bluetooth is a registered trademark of Bluetooth SIG, Inc., Bellevue, Wash., USA). In the Bluetooth technology, the access z. B. granted via mobile phone. The essential tasks of the access control system are accordingly

• Restriction / prevention of unauthorized access of persons,
• Monitoring / controlling of movements of persons.

From the DE 20 2006 006 85 U1 For example, a device for authenticating an authorized person and for opening an electronic lock or an electronic security unit is known. A device is provided for inputting a PIN code and / or a biometric sensor for receiving a biometric feature. When entering a correct PIN code and / or a correct biometric information of an authorized access is a control signal generated. A generated authorization signal is wirelessly transmitted to the lock.

From the DE 103 41 370 A1 For example, an identification system is known for securely identifying and enabling / preventing a logical and / or physical access to a destination device. The system has a portable, programmable identification medium with biometric sensor, input element, output element, processor, memory, transmitting and receiving electronics and a programmable, with the target device in operative connection remote station with reading and evaluation electronics, actuator and memory.

From the DE 101 60 813 A1 is a home communication system with at least one door station and at least one home station known, all stations are connected to each other via a bus connection and at least partially modular - consisting of main module and function module. The main module is made in the manner of an electrical installation device of a conventional building installation system from a socket-like insertable into a standard electrical installation box insert, the respective functional module electrically and / or mechanically connectable to the main module is (pluggable). Each main module receives a specific, electrical and / or mechanical device function by the connection with a specific functional module or a particular further main module and / or separate switching / adjusting.

The invention has for its object to provide a retrofittable in cost-saving manner mountable access control system of the type mentioned.

This object is achieved in conjunction with the features of the preamble according to the invention by the features specified in the characterizing part of claim 1.

The advantages achieved by the invention are, in particular, that especially in the renovation market retrofitting an apartment with an access control system in a very simple and cost-saving manner is possible. Since a potential-dependent switching relay is used instead of a normally used potential-free switching relay in the indoor unit to supply the door lock of an access door, it is no longer necessary to lead lines between a separate voltage source - usually mounted as a modular device in the house distribution box - to the relays acting on the door lock , The door lock of the access door is rather controlled directly from the indoor unit of the access control system via the potential-dependent switching relay respectively supplied with the necessary voltage for the operation. It is not necessary to install additional flush-mounted boxes, which means that installation costs are greatly reduced.

Advantageous developments of the invention are characterized in the subclaims.

Fig. 1

ein Prinzipbild des vorgeschlagenen Zutrittskontrollsystems,

Fig. 2

eine mögliche Ausführungsform einer Inneneinheit,

Fig. 3

eine mögliche Ausführungsform einer Außeneinheit.

The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:

Fig. 1

a schematic diagram of the proposed access control system,

Fig. 2

a possible embodiment of an indoor unit,

Fig. 3

a possible embodiment of an outdoor unit.

• eine in Form eines in eine handelsübliche UP-(Unterputz)Gerätedose nach DIN 40073 (aus Kunststoff, Durchmesser 60 mm, Tiefe 40 mm) installierbaren Geräteeinsatzes (mittels Spreizklemmen) ausgebildete Inneneinheit (z. B. Wohnungsstation) 1 und
• eine ebenfalls in Form eines in eine handelsübliche UP-(Unterputz)Gerätedose nach DIN 40073 (aus Kunststoff, Durchmesser 60 mm, Tiefe 40 mm) installierbaren Geräteeinsatzes (mittels Spreizklemmen) ausgebildete Außeneinheit (z. B. Türstation) 26.

In Fig. 1 is shown a schematic diagram of the proposed access control system. The two main modules of the access control system are

• a in the form of a standard in a flush-mounted (flush mounted) device box according to DIN 40073 (plastic, diameter 60 mm, depth 40 mm) installable use of equipment (by means of Spreizklemmen) formed indoor unit (eg home station) 1 and
• a device unit (eg by means of expansion clamps) which can also be installed in the form of a commercially available flush-mounted (flush-mounted) device box according to DIN 40073 (made of plastic, diameter 60 mm, depth 40 mm) 26 (eg door station) 26.

These two main modules indoor unit 1 and outdoor unit 26 are connected to each other via a cable 20 which is to be connected on the one hand to a cable terminal 17 of the indoor unit 1 and on the other hand to a cable terminal 39 of the outdoor unit 26. Usually, the cable 20 breaks through at least one wall 42 arranged between the indoor unit 1 and the outdoor unit 26.

For the energy supply of the access control system, a power supply unit (power supply) 16 is provided in the indoor unit 1. This power supply unit 16 is connected on the input side to a mains connection 15, which is connected to the L-conductor and N-conductor of a 230 V AC voltage network. On the output side, the power supply unit 16 is a reduced voltage, preferably a DC voltage of z. B. 12 V or 24 V and fed not only all the components of the indoor unit 1 to be supplied with energy, in particular also an evaluation / processing and storage unit 5, but also all components of the outdoor unit 26 to be supplied with energy via the cable 20 ,

In particular, the output-side, reduced voltage of the power supply unit 16 is used to power a voltage-biased switching relay 10 controlled by the evaluation / processing and storage unit 5, to the terminals of which an electromagnetically openable door lock 43 of an access door of the access control system is connected.

The indoor unit 1 has as a central "intelligent" building block the evaluation / processing and storage unit 5 already mentioned above. On the output side, the evaluation / processing and storage unit 5 controls, among other things, a potential-free switching relay 11, which is predefined as a fault output and to which an alarm system 41 is connected for direct activation. There may be at least one further potential-free switching relay to switch on and off, for example, an alarm system.

The outdoor unit 26 has, as a central "intelligent" building block, an evaluation / processing and encryption unit 38, wherein via the cable 20 data signals are provided between the evaluation / processing and storage unit 5 of the indoor unit 1 and the evaluation / processing and encryption unit 38 of the outdoor unit 26 are exchanged.

• mittels eines Transponder-Funktionselements 30 als einfaches, schnelles und wartungsfreundliches, berührungsloses System oder
• mittels eines Fingerprint-Funktionselements 32 als biometrisches System oder
• mittels eines PIN-Code-Funktionselements 34 oder
• mittels eines Funk-Funktionselements 36

verifiziert, wobei mindestens eines dieser Funktionselemente 30 oder 32 oder 34 oder 36 hierzu an die Auswerte-/Verarbeitungs- und Verschlüsselungseinheit 38 angeschlossen ist. Die Auswerte-/Verarbeitungs- und Verschlüsselungseinheit 38 erkennt und filtert zusammen mit dem Funktionselement 30, 32, 34, 36 die Zutrittsberechtigungs-Information der Person, die Zutritt erhalten möchte und sendet ein dementsprechendes Berechtigungssignal verschlüsselt an die Auswerte-/Verarbeitungs- und Speichereinheit 5 der Inneneinheit 1, in welcher die Zutrittsberechtigungs-Informationen aller berechtigten Personen abgespeichert sind. Dementsprechend kann eine Überprüfung der Zutrittsberechtigung durch Vergleich der abgespeicherten Informationen mit der aktuell von der Außeneinheit 26 erhaltenen Information (verschlüsseltes Datensignal) erfolgen.The access control is either

• by means of a transponder-functional element 30 as a simple, fast and easy to maintain, non-contact system or
• by means of a fingerprint functional element 32 as a biometric system or
• by means of a PIN code functional element 34 or
• by means of a radio-functional element 36

verified, wherein at least one of these functional elements 30 or 32 or 34 or 36 is connected to the evaluation / processing and encryption unit 38 for this purpose. The evaluation / processing and encryption unit 38 recognizes and filters together with the functional element 30, 32, 34, 36 the access authorization information of the person who wishes to gain access and sends a corresponding authorization signal in encrypted form to the evaluation / processing and storage unit 5 the indoor unit 1, in which the access authorization information of all authorized persons are stored. Accordingly, a check of the access authorization by comparison of the stored information with the currently obtained from the outdoor unit 26 information (encrypted data signal) take place.

To increase the security against manipulation activates in no case the outdoor unit 26, but only the indoor unit 1 via evaluation / processing and storage unit 5, the door lock 43 by relay contact of the integrated switching relay 10. The prerequisite for this is that the storage of access authorization information and the Evaluation takes place on the basis of the encrypted data signal exclusively in the indoor unit 1.

Fig. 1 shows further details of the indoor unit 1, such. B. connected to the evaluation / processing and storage unit 5 bus connection 9 through which the access control system is network enabled and to which optional via a converter 48, an external bus 44 can be connected. In this way a connection to KNX (standard for home and building system technology of the Konnex Association) and TCP / IP (Transport Control Protocol / Internet Protocol) is made possible. For example, an interface to a central display and control panel (touchscreen, "Comfortpanel") can be made possible, via which changes can be entered during operation (name assignments, deleting, changing, reading out user profiles, reading out event logs and the determination of individual time periods and time zones).

Furthermore, a display 7 and at least one operating element 6 are expediently connected to the evaluation / processing and storage unit 5 for this purpose. Details are explained below.

• eine menügeführte Inbetriebnahme sowie eine Namenzuordnung der einzelnen Benutzer/Berechtigten (Einiernmodus),
• eine gezielte Benutzer/Berechtigten-Löschung (Löschmodus),
• eine zeitraumbezogene Vorgabe von Zutrittsberechtigungen (temporäre Berechtigungen individuell für jeden Zutrittsberechtigten, spezifiziert nach Datum/Wochentag/Uhrzeit),
• das Auslesen von Protokolldaten.

In the Fig. 2 a possible embodiment of an indoor unit is shown. In this case, a central disk or rocker 3 is placed on the formed in the form of a standard equipment use unit indoor unit 1, which has the aforementioned integrated display 7 and controls 6 and is enclosed by a cover 4. The display 7 can be used in conjunction with the controls 6 z. B. used for operation / programming / configuration of the access control system and enables the customer

• a menu-driven commissioning as well as a name assignment of the individual user / authorized person (one-time mode),
• a targeted user / authorized delete (delete mode),
• a time-related specification of access authorizations (temporary authorizations individually for each authorized person, specified by date / day of the week / time),
• the reading of log data.

Of course, the above-mentioned operation / programming / configuration can also be done in other ways, for example by means of PDA (Personal Digital Assistant) via an infrared interface of the outdoor unit 26 or via the connected bus 44.

In Fig. 3 a possible embodiment of an outdoor unit is shown, namely an outdoor unit 26 is shown with PIN code function element 34, wherein an input keyboard 35 is used for typing a predetermined number of digits. For the information of the user z. B. two LEDs 24 are provided, wherein at correct input of the predetermined number of digits a green LED 24 lights up and the door lock 43 of the access door opens. If the predetermined number sequence is entered incorrectly, a red LED 24 lights up. There is no admission. In addition or as an alternative to the aforementioned optical feedback, an acoustic feedback can be effected by means of a buzzer 25 installed in the outdoor unit 26. The components connected to the evaluation / processing and encryption unit 38, such as LEDs 24 and buzzer 25 are also in Fig. 1 outlined. A cover 29 encloses the functional element, here z. B. PIN code function element.

Of course, the above information is valid even when using another functional element. Are z. B. a transponder-functional element 30 or a fingerprint function element 32 or a radio-functional element 36 used, the user is informed in the same way by means of optical feedback in the form of LEDs 24 and / or acoustic feedback in the form of a buzzer 25 about whether the access control, d. H. checking the encrypted data signals has led to a positive / negative result.

From the FIGS. 2 and 3 the modular structure of both the outdoor unit 26 and the indoor unit 1 can be seen, ie separate cover frame, separate functional elements, separate use. In this way, the desired design can be advantageously selected from different flush-mounted switch programs. As already mentioned above, the functional elements are mutually exchangeable, ie a transponder-functional element is not only electronic, but also mechanically and with respect to its dimensions designed such that it z. B. can be replaced by a fingerprint function element or by a PIN code function element.

LIST OF REFERENCE NUMBERS

1

Indoor unit (home station) of the access control system in the form of a device insert

2

---

3

Central disk or rocker

4

Cover

5

Evaluation processing and storage unit

6

operating element

7

display

8th

---

9

Bus connection

10

potential-related switching relay

11

potential-free switching relay

12

---

13

---

14

---

15

Mains connection (L-conductor, N-conductor)

16

Power supply unit

17

cable

18

---

19

---

20

Cable to the outdoor unit

21

---

22

---

23

---

24

LEDs (green: access allowed, red: access restricted)

25

buzzer

26

Outdoor unit (door station) in the form of a device insert

27

---

28

---

29

Cover

30

Transponder functional element

31

---

32

Fingerprint functional element

33

---

34

PIN code function element

35

input keyboard

36

Radio control (mobile phone)

37

---

38

Evaluation processing and encryption unit

39

cable

40

---

41

alarm system

42

wall

43

Door lock of an access door

44

bus

45

---

46

---

47

---

48

converter

Claims (6)

Access control system a) with an indoor unit (1) in the form of a standard-fit flush-mounted device box mountable device insert, which has an evaluation / processing and storage unit (5) which controls a door lock (43) of an access door via a relay (10), b) with an outdoor unit (26) in the form of a device insert which can be mounted in a standard-compliant flush-mounted box and which has an evaluation / processing and encryption unit (38) to which a transponder function element (30) or a fingerprint function element (32 ) or a PIN code function element (34) or a radio function element (36) is connected for the detection of access authorization, c) wherein the indoor unit (1) is connected to the outdoor unit (26) via a cable (20), characterized, d) that the indoor unit (1) has a power supply unit (16), which is connected on the input side to a mains connection (15) and outputs an output-side, reduced voltage, e) that the indoor unit (1) has a potential-dependent relay (10) for controlling the door lock (43) of the access door and d) that the potential-biased relay (10) when activated by the evaluation / processing and memory unit (5), the output side, reduced voltage of the power supply unit (16) to the door lock (43) through. Access control system according to claim 1, characterized in that the power supply unit (16) also supplies on the output side all building components of the indoor unit (1) and the outdoor unit (26) to be supplied with energy. Access control system according to claim 1 or 2, characterized in that the indoor unit (1) has at least one potential-free, by the evaluation / processing and storage unit (5) controllable switching relay (11), to which an alarm system (41) can be connected. Access control system according to one of the preceding claims, characterized in that a bus connection (9) is provided, to which an external bus (44) can be connected via a converter (48). Access control system according to one of the preceding claims, characterized in that the indoor unit (1) has an on the evaluation / processing and storage unit (5) connected, a programming facilitating display (7). Access control system according to one of the preceding claims, characterized in that the outdoor unit (26) includes means (24, 25) for optical and / or acoustic feedback on whether the access control has led to a positive / negative result.

Images