EP2978914B1 - Sensorsystem für eine schliessanlage und verfahren zum detektieren von manipulationen an einer schliessanlage - Google Patents

Sensorsystem für eine schliessanlage und verfahren zum detektieren von manipulationen an einer schliessanlage Download PDF

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Publication number
EP2978914B1
EP2978914B1 EP14702800.5A EP14702800A EP2978914B1 EP 2978914 B1 EP2978914 B1 EP 2978914B1 EP 14702800 A EP14702800 A EP 14702800A EP 2978914 B1 EP2978914 B1 EP 2978914B1
Authority
EP
European Patent Office
Prior art keywords
magnetic field
door
sensor
profile
sensor system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14702800.5A
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German (de)
English (en)
French (fr)
Other versions
EP2978914A1 (de
Inventor
Julian Bartholomeyczik
Frank Schindler
Philipp STARK
Michael FEIRER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of EP2978914A1 publication Critical patent/EP2978914A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/10—Electric alarm locks with contact making inside the lock or in the striking plate by introducing the key or another object
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B2045/063—Electric alarm locks by movement of the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B2045/065—Switch or sensor type used in alarm locks

Definitions

  • the invention relates to a sensor system for a locking system and a method for detecting tampering with a locking system, especially in locking systems of doors or gates, for example, from entrance doors to buildings or inside buildings located apartment doors.
  • lock picking refers to the non-destructive opening of locking cylinders of a lock with the help of a specially adapted burglary tool.
  • the possibility of being able to open a lock at all by lock picking essentially results from inaccuracies in the production of lock cylinders that can not be avoided mechanically or only at great expense.
  • Locking systems with cylindrical pins thereby have due to an offset of the pin holes to each other.
  • lock picking the lock cylinder can be set in such a bias that only one of the pins is jammed. This pin can then be brought by appropriate sensitive displacement in unlocking position.
  • the cylinder core Upon reaching the unlock position, the cylinder core can be further rotated by the minimum offset so that the next pin can be biased. Through this iterative procedure, the cylinder core can be unlocked without the need for a key and without damaging the lock.
  • the publication US 5,567,099 A discloses a system which can detect intrusion and trigger alarms by detecting movement by means of light sensors.
  • the publication US 6,963,281 A discloses a system having a plurality of magnetic contact switches in a break-in attempt be disconnected, so that according to alarm can be triggered.
  • the pamphlets US 3,475,934 A and US 6,854,307 A each reveal additional inserts in a keyhole which can be locked thereby.
  • the publication US 4,186,578 A discloses a detection method with which the insertion of electrically conductive material into a keyhole can be detected.
  • the publication EP 1 981 010 A2 discloses a system which can detect a break-in attempt by measuring energy during a break-in attempt and balancing the measured energy with a stored energy signature.
  • the publication US 7,397,341 A1 discloses a combination of an acoustic and a vibration sensor whose detected signals are compared with reference signals to detect the signature of a lock picking attack.
  • the present invention therefore provides, in one aspect, a sensor system for a door locking system having an acceleration sensor adapted to detect movements of the door in at least two dimensions, a magnetic field sensor adapted to apply a magnetic field in the area of the locking system detect and detect changes in the magnetic field, and a controller, which is coupled to the acceleration sensor and the magnetic field sensor and which is adapted to record from the detected movements of the door, a time-resolved acceleration profile to record a time-resolved magnetic field change profile from the detected changes in the magnetic field to correlate the acceleration profile with the magnetic field change profile, to compare the profile correlation with a predeterminable correlation signature, and to emit an alarm signal if the profile correlation matches the correlation signature ben.
  • the present invention provides a method for detecting tampering with a door locking system, comprising the steps of time-resolved detection of door movement in at least two dimensions, recording a time-resolved acceleration profile based on the detected movements, detecting a door Magnetic field in the field of Locking system, time resolved magnetic field sensing, recording a time resolved magnetic field change profile, correlating the acceleration profile with the magnetic field change profile, comparing the profile correlation with a predeterminable correlation signature, and outputting an alarm signal if the profile correlation matches the correlation signature.
  • One idea of the present invention is to carry out a plausibility check of various sensor signals by intelligent data processing in order to significantly improve the recognition behavior compared to actual intrusion attempts.
  • a movement profile of the door is recorded and correlated in time with a magnetic field change profile in the area of the locking system of the door.
  • Acceleration sensors typically record a wide range of external mechanical influences on the door, such as acoustic vibration caused by noise, sirens or construction site work.
  • the magnetic field sensor can detect the approach of metallic objects and make a distinction between keys and lock picking tools.
  • a signature of a break-in attempt can be greatly improved, so that alarm signals are only output when there is actually an undesired and unauthorized manipulation on the door by a lock picking attempt.
  • a significant advantage is that the correlation and data acquisition is very simple and resource-friendly, since only a few characteristic data of the sensor signals must be adjusted.
  • acceleration sensor and magnetic field sensor is much less susceptible to interference, since the measuring range of the magnetic field sensor is limited to an adjustable range close to the locking system.
  • the production costs for acceleration sensors and magnetic field sensors are usually very low, especially since the resolution of both sensors is not Forced to be particularly high, because the good resolution of the sensor system as a whole can be achieved by the correlation of the sensor signals.
  • the sensors can be standardized components that are produced inexpensively in large quantities, for example for mobile phones or smartphones.
  • the control device may comprise a microcontroller or a microprocessor.
  • an intelligent signal data evaluation can take place, which can optionally forward the results of the evaluation to a reporting device.
  • control device can have a memory area which is designed to store one or more predeterminable correlation signatures. This makes it possible to calibrate the sensor system to the door or locking system, in or on which the sensor system is used.
  • the sensor system may further comprise a signal output device which is coupled to the control device.
  • This signal output device can advantageously be preconfigured to program a specific alarm behavior upon detection of a break-in attempt.
  • the signal output device can be designed to output the alarm signal via an output interface of the sensor system to an alarm transmitter. This allows the connection of the sensor system, for example, to an in-house alarm system or other existing in the door area alarm.
  • the signal output device can be designed to transmit the alarm signal wirelessly Output communication to an alarm device. This allows, for example, the notification of mobile devices via mobile phone or alerting security personnel such as private security services or the police by radio.
  • a door is provided with a locking system, and a sensor system according to the invention, which is arranged in an inner region of the door and which is designed to generate a magnetic field in an outer region of the door and in an unauthorized opening attempt of the locking system to issue an alarm signal.
  • Doors in the context of the present invention include all means for reversibly closing openings in walls, masonry or passageways, which allow a delineation of indoor areas to outdoor areas in relation to the structural measures containing the openings and thereby a selective passage or passageway through the openings. Doors may equally include gates, wickets, hatches, barriers or gates as well as windows or other through barriers to be opened. In the sense of the present In the present invention, doors may include all types of closure mechanisms, such as stop doors, folding doors, sliding doors, or other door types.
  • Locking systems in the sense of the present invention include all locking systems which serve to allow certain persons possessing and using a legitimate access key to open a barrier provided with the locking system and to refuse opening to other persons.
  • locking systems for the purposes of the present invention may include, for example, pin locks, cylinder locks, Buntbartschlösser, disc locks, Bramahschlösser or similar types of locks.
  • Fig. 1 shows a door 1 with a locking system 3 and a sensor system 10.
  • the view (a) shows the perspective of the door 1 from the inside
  • the view (b) shows the perspective of the door in side view.
  • the door 1 may for example be a house or front door, which has a door handle 2 and a pawl 2.
  • a locking system 3 such as a cylinder lock can be arranged, which can be opened via a matching key by inserting into a keyhole and corresponding rotational movement to gain access through the door 1.
  • the door 1 is a stop door that can be swiveled around hinges.
  • the sensor system 10 may be arranged.
  • the sensor system 10 in this case comprises a magnetic field sensor which detects a magnetic field in a region which extends on the other side of the door 1.
  • An exemplary extension region B is shown in view (b), wherein the sensor system 10 is arranged on the inside 4 of the door 1, for example inside the apartment, and the detected magnetic field B extends in the outer region 5 of the door 1.
  • the extension range of the magnetic field B that is detected may be a few centimeters to about one meter around the magnetic field sensor. Due to superimpositions by the geomagnetic field, magnetic fields of the electronics of the sensor system and / or magnetic fields of other components, there is usually always a magnetic field in the area of the locking system which can be detected by the magnetic field sensor. However, it does not depend on the absolute size of the magnetic field, but the changes in the magnetic field with time.
  • the sensor system 10 further comprises an acceleration sensor which detects accelerations or deflections A of the door 1 in at least two dimensions. This can accelerations or deflections A along the Swinging the door 1, but it can also be uplifts and subsidence of the door 1 or lateral movements along the extension surface of the door 1 are detected.
  • a rotation rate sensor (not shown) can be installed, so that the detection of the opening angle in a stopper door 1 can be improved.
  • Fig. 2 shows a schematic representation of an embodiment of a sensor system 10 for a locking system, for example, for the locking system 3 in Fig. 1
  • the sensor system 10 can be arranged, for example, on a door 1 or installed in a door 1, for example in the door 1 in FIG Fig. 1 ,
  • the sensor system comprises an acceleration sensor 11, which is designed to detect movements of the door 1 in at least two dimensions. Furthermore, the sensor system comprises a magnetic field sensor 12, which is designed to generate a magnetic field B in the area of the locking system 3 and to detect changes in the magnetic field B.
  • the acceleration sensor 11 and the magnetic field sensor 12 are coupled to a control device 13.
  • the control device 13 is designed to record a time-resolved acceleration profile from the detected movements of the door 1 and a time-resolved magnetic field change profile from the detected changes in the magnetic field B. These two profiles can be correlated by the control device 13, so that a comparison of the profile correlation with a predeterminable correlation signature can be made in order to output an alarm signal when the profile correlation matches the correlation signature.
  • the control device 13 can have, for example, a microcontroller or a microprocessor which has a memory area 14 in which one or more predeterminable correlation signatures can be stored.
  • the correlation signatures can be created, for example, by empirical field experiments with lock picking attacks. However, it can also be a calibration of the sensor system 10 when installed in the door 1 or when attached to the door 1 are made, which takes into account the respective local conditions of the environment of the door 1. From time to time, recalibration of the sensor system 10 may be performed as appropriate, and the correlation signatures may be overwritten or updated.
  • the control device 13 can furthermore operate one of the sensors 11 and 12 as a constantly detecting sensor, while the other of the two sensors 11 and 12 is only activated or activated if a signal pattern matching a break-in attempt by means of lock picking is detected by the constantly detecting sensor , The connected one of the two sensors can then be used to check the plausibility of this signal pattern. This can reduce the power consumption of the sensor system 10. Alternatively, both sensors 11 and 12 may be kept in continuous operation, for example, when more reliable monitoring is desired.
  • the sensor system 10 can furthermore have a signal output device 15, which is coupled to the control device 13 and outputs the alarm signal via an output interface 16 of the sensor system 10 to an alarm transmitter 18.
  • the alarm device may for example have an optical or acoustic transducer device, such as an alarm, a siren, an LED or similar device.
  • the signal output device 15 may be configured to output the alarm signal via wireless communication, indicated by reference numeral 17, to an alarm transmitter 18 or other device.
  • a user of the sensor system 10 can be informed via app, SMS or call on his mobile device about a detected intrusion attempt.
  • an alarm can be given to a security company or the police via wireless communication.
  • Fig. 3 shows a schematic representation of an exemplary method 20 for detecting tampering attempts by lock picking on a locking system of a door.
  • the method 20 may be implemented by the sensor system 10 in FIG Fig. 2 for monitoring the locking system 3 in Fig. 1 be used.
  • a time-resolved detection of movements of the door can take place in at least two dimensions. This can be a time-resolved in step 22 Acceleration profiles are created based on the detected movements.
  • a magnetic field in the area of the locking system can be detected, so that changes in the magnetic field can be detected in a time-resolved manner in a step 24. From this a time-resolved magnetic field change profile can be created in step 25.
  • the two profiles i. the acceleration profile and the magnetic field change profile can be correlated in step 26, so that in step 27 a comparison of the profile correlation with a predeterminable correlation signature can take place, for example in a microprocessor or a microcontroller. If the profile correlation agrees with the correlation signature, then an alarm signal can be output in step 28, which signals the detection of a break-in or attempt of burglary by means of lock picking. All common lock picking tools can be detected reliably and quickly with this procedure.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Lock And Its Accessories (AREA)
EP14702800.5A 2013-03-26 2014-01-31 Sensorsystem für eine schliessanlage und verfahren zum detektieren von manipulationen an einer schliessanlage Active EP2978914B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013205368.1A DE102013205368A1 (de) 2013-03-26 2013-03-26 Sensorsystem für eine Schließanlage und Verfahren zum Detektieren von Manipulationen an einer Schließanlage
PCT/EP2014/051874 WO2014154381A1 (de) 2013-03-26 2014-01-31 Sensorsystem für eine schliessanlage und verfahren zum detektieren von manipulationen an einer schliessanlage

Publications (2)

Publication Number Publication Date
EP2978914A1 EP2978914A1 (de) 2016-02-03
EP2978914B1 true EP2978914B1 (de) 2017-03-22

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EP14702800.5A Active EP2978914B1 (de) 2013-03-26 2014-01-31 Sensorsystem für eine schliessanlage und verfahren zum detektieren von manipulationen an einer schliessanlage

Country Status (9)

Country Link
US (1) US9702165B2 (ko)
EP (1) EP2978914B1 (ko)
JP (1) JP6033490B2 (ko)
KR (1) KR102096232B1 (ko)
CN (1) CN105051303B (ko)
BR (1) BR112015024475A2 (ko)
DE (1) DE102013205368A1 (ko)
RU (1) RU2015145599A (ko)
WO (1) WO2014154381A1 (ko)

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CN107542328A (zh) * 2016-08-30 2018-01-05 江门市联创发展有限公司 一种家居安全防盗监控系统

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Also Published As

Publication number Publication date
US20160290009A1 (en) 2016-10-06
CN105051303A (zh) 2015-11-11
KR102096232B1 (ko) 2020-04-02
RU2015145599A (ru) 2017-05-03
CN105051303B (zh) 2017-06-20
JP6033490B2 (ja) 2016-11-30
US9702165B2 (en) 2017-07-11
EP2978914A1 (de) 2016-02-03
DE102013205368A1 (de) 2014-10-02
BR112015024475A2 (pt) 2017-07-18
KR20150135318A (ko) 2015-12-02
JP2016519230A (ja) 2016-06-30
WO2014154381A1 (de) 2014-10-02

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