WO2006021592A1 - Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif - Google Patents

Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif Download PDF

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Publication number
WO2006021592A1
WO2006021592A1 PCT/ES2004/000341 ES2004000341W WO2006021592A1 WO 2006021592 A1 WO2006021592 A1 WO 2006021592A1 ES 2004000341 W ES2004000341 W ES 2004000341W WO 2006021592 A1 WO2006021592 A1 WO 2006021592A1
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WO
WIPO (PCT)
Prior art keywords
proximity
detection
lock
charge
cycles
Prior art date
Application number
PCT/ES2004/000341
Other languages
English (en)
Spanish (es)
Inventor
José Angel PÉREZ LÓPEZ
Aitor María AGUEDA QUESADA
Original Assignee
Onity S.L.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Onity S.L. filed Critical Onity S.L.
Priority to EP04742069A priority Critical patent/EP1783694B1/fr
Priority to ES04742069T priority patent/ES2360857T3/es
Priority to PCT/ES2004/000341 priority patent/WO2006021592A1/fr
Priority to DE602004031469T priority patent/DE602004031469D1/de
Priority to AT04742069T priority patent/ATE498876T1/de
Publication of WO2006021592A1 publication Critical patent/WO2006021592A1/fr

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks

Definitions

  • the new electronic proximity lock referred to in this invention is aimed at electronic locksmith applications in which the lock is an energetically autonomous device, that is, it is powered by batteries and not connected to an unlimited supply electrical network, or is a device that requires low energy consumption, and the key with which this lock operates is a proximity key without contacts, which can be a card , a keychain, or in general any object that incorporates technologies for exchanging data with electronic devices without physical contact between them.
  • the lock itself must also incorporate the electronics necessary for this contactless data exchange to take place and a low-consumption wake-up system for this communications electronics to reduce the high energy consumption that would entail keeping the lock constantly in communication.
  • the solution referred to in this invention can be integrated into any other electronically controlled device that, such as the electronic lock, is energy-independent or that a minimum energy consumption is sought without being operated by proximity to a contactless proximity such as safes, encoders, wall card readers, etc.
  • a contactless proximity such as safes, encoders, wall card readers, etc.
  • These devices are usually intended to equip, for example, hotel rooms, cruise ships, government buildings, military buildings, universities and, in general, any premises where there will be a wide variability of users with the right of access over time.
  • the concept of proximity electronic locksmithing has been developed in several clearly differentiated technical stages and on most occasions has been directly related to the use of cards as a key element.
  • the first concepts of electronic proximity lock such as the one described in patent US4717816, understand the term proximity by exclusively encompassing the reading element, that is, the lock is not operated by the proximity of the card but rather the reading of the card , magnetically encoded in this case, is performed without the need for physical contact between the card and the reader head of the lock, but always with the need for the card to be inserted in a reading slot or, in the most general case, that The card is precisely positioned on the reader of the lock.
  • an electronic lock is described that has a magnetic reader formed by three heads capable of detecting a code written on a card by means of the magnetization of three parallel bands.
  • This new concept of electronic proximity locksmith is based on the application of technologies for the exchange of important volumes of contactless information between an electronic device, such as a lock, and a key or card that has elements for the storage and exchange of information. such as proximity chip cards.
  • These technologies allow an exchange of information between these two elements due to the mere proximity between said elements, for example by means of radio frequency, and therefore does not require the introduction of the card in a slot or an especially precise positioning of it on a specific reader.
  • the only necessary and sufficient condition is proximity, and the distance at which this type of communication can be maintained depends, among other factors, on the emitting power of the electronic device that will interact with proximity cards, among other factors.
  • the user In the chip card presentation maneuver, the user must press one of the surfaces of the lock that is connected to a switch, which thanks to this pressure connects the power supply to the chip card reading unit, activating it and allowing " in that moment the reading of the card without there being physical contact between card and lock.
  • Some commercial solutions are based on substituting presence detection for self-awakening with an awakening, programming the communications system according to the expected frequency of use of the lock in such a way that, by For example, if a user has recently opened the door, the time between a switch on and the next of the communication system is longer than after several hours of inactivity of the lock in which a possible user is expected to be about to arrive.
  • the most recent advances in this field are described in patent JP2001055852.
  • a body moves in the proximity of a detection electrode, the resonance state varies by the electrostatic capacity that is generated between the approached body and the detection electrode, generating a voltage that indicates this approach and activates the communications circuit.
  • the overall consumption of the lock is very low, the operation of the lock does not require contacts even for self-ignition.
  • This invention implicitly exploits a physical phenomenon by which the capacitance of the environment varies with the presence of a body, which in turn produces a variation in a state of resonance, but the differentiating element is the aforementioned change in electrostatic capacity.
  • patent US6362632 proposes a system to measure the variation of the capacitance of the environment when an object is in proximity.
  • the invention consists of using a circuit with two switches whose purpose is to charge a reference capacitor with a known and stable capacitance in time, by means of charges and discharges consecutive of a plate that doubles as a sensor.
  • the first switch allows the sensor to be connected to a determined voltage and the second switch connects the plate to the reference capacitor.
  • the sensor will adopt a load proportional to the voltage and capacitance at that precise moment.
  • the first switch is opened and the second switch is closed, the charge acquired by the sensor will be transferred to the reference capacitor, generating in it a voltage that will be a function of its already known capacitance and the transferred charge, giving this idea of the capacitance of the sensor from which it has been transferred Ia load.
  • This type of detection systems have not been applied to date to an electronic lock in combination with a communications system.
  • the self-awakening system and the contactless communication system for cards are always linked as two integral parts of a self-awakening and communications module.
  • the principles of mechanical or optical self-awakening combined with a proximity communication system have been incorporated into other devices with autonomy requirements similar to those of an electronic lock, such as the case of an operated hotel room safe. by proximity card.
  • the present invention refers to a new electronic proximity lock and the self-awakening and proximity communications module that characterizes it. It is a lock operated by proximity to a key element, hereinafter the card, in which the exchange of information between the lock and the card is carried out without the need for contact between them and without the need for the card to be inserted into no slot of the lock or is precisely positioned on the card reader.
  • the technical problem that is to be overcome with the present invention is related to the limitations of current communication technologies that allow this type of contactless communication between the lock and the card, such as proximity card reading radio frequency systems.
  • These communications technologies require a significant energy consumption of the reader device so that it creates a field around it that excites the electronics incorporated in the proximity card and this can emit the corresponding signal and thus carry out the exchange of information between card and device.
  • Most of today's electronic locks for reasons of economic viability, are autonomous devices from an energy point of view and are usually powered by conventional batteries. By incorporating proximity card technologies in autonomous electronic locks, this high energy consumption of the proximity communication system becomes critical for the viability of the lock.
  • the only solution for this limitation is to incorporate a low consumption proximity detection system in the lock for self-awakening of the communications system, so that the lock can detect the proximity of a body or object at all times but maintaining residual electrical consumption and can activate the communications system, with high energy consumption, only when potentially necessary.
  • this system must allow detection and self-awakening so quickly that the benefits offered to the user are not diminished, that is, the user does not perceive any delay in the operation of the lock due to the incorporation of the self-awakening system.
  • the autonomy of electronic proximity locks is adequate so that their installation is technically and economically viable in the applications for which electronic proximity locks are intended.
  • FIG. 1 shows the theoretical circuit on which the charge pump system is based. Its operation is based on the alternative switching of two switches (1) and (2). By short-circuiting the switch (1) and keeping the switch (2) open, a conductive plate (3) is connected, which acts as a sensor at a predefined voltage (VCC). This plate (3) creates together with the nearby environment and earth a dummy capacitor (4) of capacitance (CX).
  • VCC predefined voltage
  • This capacitance (CX) is variable and depends on the conditions of the environment close to the plate (3) and therefore, the proximity of an object or body to the plate will produce a variation in (CX) with respect to the situation in which there is no proximity of any body or object to the plate (3). Therefore, by short-circuiting the switch (1) keeping the switch (2) open, the plate (3) will load a load (qx1) as a direct function of the capacitance (CX) at said instant. Subsequently, the switch (1) is opened and the switch (2) is short-circuited. At this time, the charge (qx1) acquired by the dummy capacitor (4) is transferred to a reference capacitor (5) connected to ground and with known and stable capacitance in time (CP).
  • the reference capacitor (5) maintains the charge (qx1), while the plate (3) is recharged with a charge (qx2) that it will be a function of the capacitance (CX) of the dummy capacitor (4) at the instant of this second maneuver.
  • the reference capacitor (5) will have a total charge that will be the sum of all the transferred partial charges from the plate (3) in the (N1) charge cycles, and it will generate a voltage (V1) between its terminals that will be a function of the total load that has been transferred from the plate (3).
  • V1 voltage between its terminals that will be a function of the total load that has been transferred from the plate (3).
  • this microcontroller (6) allows a more optimized application of the previous load pump system, designed to measure the capacitance of the environment, adapting it for its application to the detection of proximity of a body or object to the lock effectively, safe and stable.
  • the improvement of the load pump system incorporated in the present invention consists of a new method or algorithm as shown in Figure 4, which, executed by the microcontroller (6), offers the lock a response performance compared to the proximity of a user and global consumption of the proximity lock that improve the current state of the art in this field of technique.
  • Figure 4 shows the final construction of the low power self-awakening system by detecting variations in the capacitance of the environment of the present invention. It includes two protection diodes (7) and (8) and three resistors (9), (10) and (11) for adjusting the currents and voltages in the circuit.
  • FIG. 5 shows a summary of the method used by the present invention for proximity detection using a modification of the charge pump principle described above. As mentioned, said method consists of an algorithm executed by the microcontroller (6) on the modified charge pump circuit shown in Figure 4. Two subprocesses called:
  • Charging cycle which is the maneuver in which the charge of the plate (3) occurs and its subsequent discharge, transferring the acquired charge to the reference capacitor (5).
  • the amount of charge transferred in each charge cycle will depend on the capacitance of the environment of the plate (3).
  • Complete charging process which is the repetition of consecutive charging cycles until the voltage generated between the terminals of the reference capacitor (5) equals or exceeds a voltage threshold (V2).
  • V2 voltage threshold
  • the number of charge cycles involved in each complete charge process will depend on the capacitance of the environment during the completion of the complete charge process.
  • the reference capacitor (5) is discharged to a known initial charge, which may be, for example, zero.
  • the method begins with the positioning of the self-awakening system in an initial position (B1) by way of restarting the system and the calibration (B2) of the system, which occurs for example in the first installation of the lock. System calibration occurs not only during reboot but also in process steps (B7) and (B9), where the entire system is recalibrated.
  • the comparison variables of the measured signal and the reference voltages used by the system are given value, and both the dummy capacitor (4) and the reference capacitor (5) are discharged to an initial state that may consist for example, when both capacitors are completely discharged.
  • the comparison variables and the reference voltages that are given value in these calibrations are:
  • VCC Voltage
  • N2 Trip threshold
  • V2 voltage threshold
  • Voltage threshold (V2) or the voltage that is generated between the terminals of the reference capacitor (5) after carrying out a number of charge cycles coinciding with the trip threshold (N2), with the condition that there is no proximity to the plate (3) of any body or object other than the lock.
  • Counter value (CONT1) which in the calibration and after each complete charging process is set to zero, and which is the variable that counts the number of charging cycles carried out in each complete charging process, so that each time a charge cycle is performed, the counter value (CONT1) is increased by one unit.
  • Sensitivity S
  • N2 the trigger threshold
  • CONT1 the counter value
  • N3 Number of wake-up cycles (N3), or the number of consecutive times that the counter value (CONT1) must vary with respect to the trigger threshold (N2), and their difference must exceed the sensitivity (S), so that this means unequivocally The proximity of a body or object.
  • Counter value (CONT2) which in calibration is positioned at zero, and which is the variable that counts the number of consecutive complete charging processes in which the counter value (CONT1) has varied with respect to the trigger threshold (N2) and its difference has exceeded the sensitivity (S).
  • the system performs a first measurement (B3) of the capacitance of the environment through charge cycles.
  • the dummy condenser (4) and the reference condenser (5) are initially discharged and the counter value (CONT1) to zero. After this discharge, consecutive charging cycles are carried out.
  • the plate (3) is charged, connecting it to the fixed voltage (VCC) while the reference capacitor (5) is disconnected.
  • the microcontroller (6) opens the power switch of the plate (3) and closes a discharge circuit to charge the reference capacitor (5) with the charge recently acquired by the plate (3).
  • This charge is stored in the reference capacitor (5) that is disconnected from the plate (3).
  • the previous counter value (CONT1) is increased by one unit and it is measured if the voltage between the terminals of the capacitor (5) is equal to or greater than the voltage threshold (V2). If the voltage between the terminals of the reference capacitor (5) does not exceed the voltage threshold (V2), the charging cycle is repeated again until the voltage between the terminals of the reference capacitor (5) equals or exceeds the threshold of voltage (V2).
  • the proximity of a body to the plate (3) creates an increase in the capacitance of the dummy capacitor (4) but the existence of certain materials has been verified, some of them used for the support of chip data. proximity, which create a decrease in the capacitance of the environment with its proximity to the plate (3).
  • the incorporation of the microcontroller (6) in the present invention allows the applied method to be modified depending on the effect expected by the proximity of the proximity chip holder, without changing the algorithm used.
  • This algorithm difference basically consists in that, in the comparisons of the measurements made of the current counter value (CONT1) with respect to the triggering threshold (N2), the value that means possible proximity of a body or object is higher or lower than the threshold firing (N2).
  • the self-awakening system After this ignition, it is checked whether the communications is activated or not (B14). If it is still on, the self-awakening system considers that the last communication process has not finished and resumes the next power-up (B11). In the event that the communications circuit is not turned on, the process is restarted from the environment capacity measurement (B3). If the difference between the counter value (CONT1) and the trigger threshold (N2) after the complete charging process is greater than the sensitivity (S), there is a second indication of the proximity of a body or object to the plate (3 ) but a single measure does not confirm proximity either, since it could have been due to internal errors in the power supply or electronics. Therefore, the counter value (CONT2) is increased by one unit and the complete process of loading and comparison from (B3) to (B5) is repeated (B8) until one of the following three cases occurs:
  • N2 and the current counter value (CONT1) is less than the sensitivity (S) when the counter value (CONT1) is less than the tripping threshold (N2), so the increase in the capacitance of the environment is not owes to any proximity.
  • the communications system will exchange data with this element and in case it corresponds to a key object that corresponds to the lock, the communications circuit will emit a signal to the control circuit of the lock, which will correspond to performing the operation corresponding to the nature of the data exchanged, for example opening the lock.
  • Figure 2 shows an evolution of the circuit of Figure 1 with the same functionality but with a relocation of the switch (2) more in accordance with the application of the present invention.
  • Figure 3 shows a load pump circuit commanded by a microcontroller (6) with the same functionality as the circuits of Figures 1 and 2.
  • Figure 8 shows the main angles to take into account for the location of the plate (3) as a function of the most probable angle of approach of the card (22).
  • FIG. 9 shows the main external distances to the lock to be taken into account for its operation.
  • the following references are indicated in these figures:
  • VREF Reference voltage for comparison with the capacitor voltage (5)
  • CX Variable capacitance of the dummy capacitor (4)
  • CP Variable capacitance of the reference capacitor (5) 1.
  • B3. Calibration action of the self-awakening comparison variables.
  • B3. Measurement action of the variation of the capacitance of the environment of the plate (3)
  • B4. Comparison of the measurement regarding the tripping threshold (N2)
  • B5. Comparison of the difference between (N2) and the measurement regarding to the sensitivity (S)
  • B6. Action of not activating the communications system.
  • B7. Recalibration action of self-awakening comparison variables.
  • B8. Comparison of the number of consecutive measurements that indicate proximity.
  • B9. Recalibration action of self-awakening comparison variables.
  • B10. Activation action of the communications system.
  • This non-metallic coverage (13) allows the communications field created by the lock's communication system not to be screened by the metal casing (14) of the proximity lock.
  • the conductive plate (3) of the proximity sensor stands out first due to variation of the capacitance of the environment and the antenna of the communication system (12).
  • Plate (3) and antenna (12) are physically mounted on a single support plate (16) or PCB, one on each face of said support plate (16), and with Ia plate (3) located on its outermost face. Due to the special surface of the plate (3) in the form of parallel ribs of approximately one millimeter in width with a transverse rib that electrically interconnects them, the communications field created by the antenna (12) when the communications system is active it is not distorted when crossing the plate (3) and the assembly can adopt its maximum compactness, reducing the space required inside the lock and therefore reducing its overall size.
  • This set of plate (3), antenna (12) and common support plate (16) are supported on a second plate (17) that in turn houses the microcontroller (6) necessary for self-awakening, the additional electronics necessary for the self-awakening circuit and the electronics necessary for the communications system.
  • figure 7 shows a cross section of the upper part of the electronic proximity lock that houses the proximity detection plate (3) and the antenna (12) of the communications system.
  • Figure 7 shows the effective proximity detection area (21), a possible approximation of a proximity card (22) and the effective communication area (23) with the proximity card.
  • these effective detection (21) and communications (23) areas are concentrated around the area in which the electronic proximity lock does not have an external metal casing (14), but rather a cover non-metallic (13), for example plastic. In the rest of the areas around the metal casing (14), said casing produces a shielding effect on the detection and communication fields, so the user must bring the card closer to the plastic-covered area (13).
  • the effective area of communications is greater than the effective proximity detection area. This is done so that, given the possibility that the The user moves the card (22) slightly in the proximity of the lock and the communications field is capable of interacting with the card even if the movement is slightly distant after proximity detection.
  • the card (22) can be read in any position that is within the effective communications area (23), although a parallel approach between the surface of the card (22) to the surface of the non-metallic casing (13) is the approach with greater guarantees of operation of the lock.
  • figure 8 shows another cross section of the upper part of the electronic proximity lock that houses the proximity detection plate (3) and the antenna of the communications system (12).
  • Two angles stand out in this figure: the angle ( ⁇ ) of positioning of the plate (3) and the antenna (12) located on the same support plate (16) with respect to the vertical, and the angle ( ⁇ ) which is the probable angle of approach of the proximity card with respect to the vertical.
  • figure 9 shows another cross section of the upper part of the electronic proximity lock that houses the proximity detection plate (3) and the antenna of the communications system (12).
  • the distance (D1) to the exterior of the metal casing (14) to which the set consisting of proximity sensor plate (3), antenna (12) and the plate that supports them (16) stands out. with respect to the most outstanding point of the metal casing (14) of the lock.

Abstract

L'invention concerne un verrou électronique de proximité à faible consommation d'énergie, équipé d'un système d'activation automatique qui mesure la variation de capacité à proximité d'une plaque (3) faisant office de capteur de proximité, formant avec les alentours et la terre un condensateur fictif dont la capacité varia selon la proximité d'un corps. Ainsi, lorsqu'un corps est détecté à proximité, le système d'activation automatique active un système de communication sans fil qui émet un signal de communication, par radiofréquence, par exemple, dont l'objectif est de maintenir un échange de données avec une carte. S'il y a effectivement une carte à proximité et que celle-ci correspond au verrou, le système de communication transmet un ordre au système de commande du verrou et exécute les actions qui conviennent en fonction de la nature des données échangées.
PCT/ES2004/000341 2004-07-21 2004-07-21 Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif WO2006021592A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04742069A EP1783694B1 (fr) 2004-07-21 2004-07-21 Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif
ES04742069T ES2360857T3 (es) 2004-07-21 2004-07-21 Cerradura electrónica que comprende un sistema de actuación automático que utiliza un sensor de proximidad capacitivo.
PCT/ES2004/000341 WO2006021592A1 (fr) 2004-07-21 2004-07-21 Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif
DE602004031469T DE602004031469D1 (de) 2004-07-21 2004-07-21 Elektronisches schloss mit einem automatischen betätigungssystem mit einem kapazitiven proximitätssensor
AT04742069T ATE498876T1 (de) 2004-07-21 2004-07-21 Elektronisches schloss mit einem automatischen betätigungssystem mit einem kapazitiven proximitätssensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2004/000341 WO2006021592A1 (fr) 2004-07-21 2004-07-21 Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif

Publications (1)

Publication Number Publication Date
WO2006021592A1 true WO2006021592A1 (fr) 2006-03-02

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PCT/ES2004/000341 WO2006021592A1 (fr) 2004-07-21 2004-07-21 Verrou electronique avec systeme d'activation automatique par capteur de proximite capacitif

Country Status (5)

Country Link
EP (1) EP1783694B1 (fr)
AT (1) ATE498876T1 (fr)
DE (1) DE602004031469D1 (fr)
ES (1) ES2360857T3 (fr)
WO (1) WO2006021592A1 (fr)

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AT503301B1 (de) * 2006-05-04 2007-09-15 Evva Werke Vorrichtung zur zutrittskontrolle
US10001791B2 (en) 2012-07-27 2018-06-19 Assa Abloy Ab Setback controls based on out-of-room presence information obtained from mobile devices
US10050948B2 (en) 2012-07-27 2018-08-14 Assa Abloy Ab Presence-based credential updating
WO2019071707A1 (fr) * 2017-10-12 2019-04-18 深圳市沃特沃德股份有限公司 Procédé et dispositif de commande de serrure de porte

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CN101064755B (zh) 2006-04-30 2011-04-27 联想(北京)有限公司 实现呼叫转移的方法及电话终端
WO2011109460A2 (fr) 2010-03-02 2011-09-09 Liberty Plug-Ins, Inc. Procédé et système permettant d'utiliser un téléphone intelligent pour charger un véhicule électrique
DE102010040434B4 (de) * 2010-09-08 2020-01-30 BSH Hausgeräte GmbH Kapazitive Bedieneinrichtung für ein Haushaltsgerät, Haushaltsgerät und Verfahren zum Betreiben einer kapazitiven Bedieneinrichtung in einem Haushaltsgerät
DE102011018430B4 (de) * 2011-04-21 2019-03-21 Wenglor Sensoric Gmbh Induktiver Näherungsschalter

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US5682032A (en) * 1996-02-22 1997-10-28 Philipp; Harald Capacitively coupled identity verification and escort memory apparatus
US6362632B1 (en) * 2000-05-24 2002-03-26 Becs Technology, Inc. Balanced charge pump capacitive material sensor
US20020125994A1 (en) * 2001-02-21 2002-09-12 Kiekert Ag Keyless system for actuating a motor-vehicle door latch
US6535136B1 (en) * 1998-02-26 2003-03-18 Best Lock Corporation Proximity card detection system

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US5682032A (en) * 1996-02-22 1997-10-28 Philipp; Harald Capacitively coupled identity verification and escort memory apparatus
US6535136B1 (en) * 1998-02-26 2003-03-18 Best Lock Corporation Proximity card detection system
US6362632B1 (en) * 2000-05-24 2002-03-26 Becs Technology, Inc. Balanced charge pump capacitive material sensor
US20020125994A1 (en) * 2001-02-21 2002-09-12 Kiekert Ag Keyless system for actuating a motor-vehicle door latch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503301B1 (de) * 2006-05-04 2007-09-15 Evva Werke Vorrichtung zur zutrittskontrolle
AU2007247803B2 (en) * 2006-05-04 2014-02-13 Evva-Werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern Gesellschaft M.B.H. & Co. Kg Access control device
US8692650B2 (en) 2006-05-04 2014-04-08 Evva-Werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern Gesellschaft M.B.H. & Co. Kg Access control device
US10001791B2 (en) 2012-07-27 2018-06-19 Assa Abloy Ab Setback controls based on out-of-room presence information obtained from mobile devices
US10050948B2 (en) 2012-07-27 2018-08-14 Assa Abloy Ab Presence-based credential updating
US10606290B2 (en) 2012-07-27 2020-03-31 Assa Abloy Ab Controlling an operating condition of a thermostat
WO2019071707A1 (fr) * 2017-10-12 2019-04-18 深圳市沃特沃德股份有限公司 Procédé et dispositif de commande de serrure de porte

Also Published As

Publication number Publication date
ES2360857T3 (es) 2011-06-09
DE602004031469D1 (de) 2011-03-31
EP1783694B1 (fr) 2011-02-16
EP1783694A1 (fr) 2007-05-09
ATE498876T1 (de) 2011-03-15

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