Door locking control system and corresponding method

Abstract

The invention relates to a system (1) for controlling the locking of a door (P) comprising a magnetic lock (2); an electrical power supply (5); and a control device (10) configured to put the power supply in a default unlocked state when no person is detected, in which the lock is either not powered or powered with a holding power lower than the locking power, and in a locked state when at least one person is unauthorized. The control device is configured so that, when the person is authorized, it either leaves the power supply in said default unlocked state or puts the power supply into a temporary unlocked state in which the power supplied to the lock is less than the holding power. The invention also relates to a corresponding method. Figure for the abstract: Fig. 1

Description

Title of the invention: Door locking control system and corresponding method. FIELD OF THE INVENTION

[0001] The present invention relates to securing access to an area, in particular a building. Specifically, the invention relates to a system for controlling the locking of a door, as well as methods for locking and unlocking with such a system. EARLIER ART

[0002] To secure an access door, it is known to use magnetic door opening systems, particularly electromagnetic door holders with power failure protection. These holders produce a force that prevents opening when they are powered. Conversely, they produce a negligible, or even zero, force when they are not powered, thus ensuring that the door will open in the event of a power outage.

[0003] When an authorized person wishes to open the door, the power supply is cut off, for example after presentation of an access badge. Over a 24-hour period, the total time during which the power supply is cut off is generally less than 10 minutes, which is very little.

[0004] The electrical consumption of these suction cups is therefore not negligible.

[0005] There is a need to secure the opening of a door by limiting energy consumption, particularly electrical, while ensuring the security of access and the opening of the door in the event of a power failure. Summary of the invention

[0006] To this end, the invention relates to a door locking control system comprising: - a magnetic suction cup; - a power supply for the magnetic suction cup configured to provide the magnetic suction cup with power, called locking power, enabling the magnetic suction cup to lock the door in a closed configuration; - a control system configured for: • detect, at least on one side of the door, whether at least one person is approaching the door or not; • determine whether a person is authorized to pass through the door or not; • Turn on the power supply at least: - in a first state, called the default unlocking state, when no person approaching the door is detected in which: either the magnetic lock is not powered, or the magnetic lock is powered with a non-zero power, called holding power, less than the locking power; - in a second state, called the locking state, when the person or persons approaching the door are unauthorized, a locking state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; The control system is also configured so that, when at least one person approaches the door, it is authorized to... either leave the power supply in the said default unlocking state, in which the magnetic suction cup is preferably not powered, or put the power supply into a third state, called the ephemeral unlocking state, in which the power supplied to the magnetic suction cup is less than the holding power.

[0007] Under normal operating conditions, over a day, the power supply can be in the default unlocked state at least 80% of the time, or even at least 90%, or even at least 95% of the time.

[0008] It can be predicted that the "ephemeral unlocked state" corresponds to a short-duration state, in particular less than 20 s.

[0009] By "at least one person approaches or does not approach the door", we mean a person who moves towards the door and / or who is near the door, for example within 5 m of the door.

[0010] In the present invention, the power supply is in the default unlocked state for at least 80% of the day, or even at least 90%, or at least 95%, or even more. Thus, the magnetic suction cup is not powered or is powered at holding power for at least 80% of the day, or even at least 90%, or at least 95%, or even more, which makes it possible to limit electrical power consumption compared to the aforementioned prior art.

[0011] Power consumption can thus be reduced by at least 50%, or even by at least 80% compared to the prior art, which is particularly advantageous.

[0012] Furthermore, in addition to this limitation of power consumption, access security is guaranteed by the system according to the invention, thanks to the locked state in which the control device can place the power supply. The system also allows the door to be opened in the event of a power outage.

[0013] Thus, the system according to the invention provides at least the same safety guarantees as prior art systems, while reducing the electrical consumption of the suction cup.

[0014] The system can be used on any type of door, for example single or double-leaf doors, pocket doors, revolving doors, etc...

[0015] Of course, the door is configured to take an open configuration and a closed configuration and to be able to move from one to the other, for example by pivoting or sliding.

[0016] Power supply states

[0017] Default unlock state

[0018] The holding power can be between 10% and 50% of the locking power.

[0019] The holding power is advantageously sufficient to prevent the door from being opened by a gust of wind and to allow the door to be opened by a person.

[0020] Temporary unlocked state

[0021] The ephemeral unlocked state can have a predetermined duration, in particular between 2 s or 3 s and 60 s. This duration can be adjusted.

[0022] The power supplied by the power supply in the ephemeral unlocked state may be sufficient to prevent the door from being opened by a gust of wind and to allow the door to be opened by a person, in particular by providing a reasonable effort, i.e. a classic effort to open a door.

[0023] The power supplied during the ephemeral unlocked state may be less than 80% of the holding power, in particular less than 50%, in particular less than 30%.

[0024] As a reminder, during the ephemeral unlocked state, it can be expected that the suction cup is not powered (in other words, it can be expected that the power supplied by the electrical supply is zero).

[0025] Locked state

[0026] The locking power can be between 5 W and 7 W, in particular substantially equal to 6 W.

[0027] Not powered

[0028] When the magnetic suction cup is not powered, the magnetic suction cup produces a closing force of zero or substantially zero.

[0029] Conversely, when the suction cup is powered in the closed configuration of the door, the magnetic suction cup produces a force in the direction of keeping the door closed.

[0030] In particular, the force exerted is an attractive force between the plywood and the electromagnet that may make up the suction cup. The term "powering" thus refers to a power supply that generates an electromagnetic force at the suction cup. as opposed to a power supply that did not generate an electromagnetic force (or attraction) in the direction of keeping the door in the closed configuration, for example the power supply of an indicator light.

[0031] Magnetic suction cup

[0032] The magnetic suction cup may include an electromagnet.

[0033] The magnetic suction cup may include a metal counter plate opposite with said electromagnet when the door is closed.

[0034] The locking force of the magnetic suction cup when powered at the locking power can be between 2,000 N and 4,000 N, or approximately between 200 kgf and 400 kgf.

[0035] Power supply

[0036] The power supply can be connected to the mains.

[0037] The power supply can operate at 12V or 24V.

[0038] The power supply can provide a locking current, when the power supplied is the locking power, between 400 and 600 mA, in particular between 450 mA and 550 mA, for example equal to 480 mA.

[0039] The power supply may include a battery allowing temporary power supply in the event of a power outage.

[0040] Closing element

[0041] The system may include a closing element configured to produce a holding force enabling the door to be held in a closed configuration and allowing the door to be opened by a person, in particular exerting on the door a force greater than said holding force.

[0042] The closing element can be chosen from the group consisting of magnets, in particular permanent magnets, latch locks, in particular without a cylinder, door closers, for example spring-loaded, magnetic seals, and a mixture of these, preferably magnetic seals.

[0043] Control device

[0044] The control device may include a control unit, such as any processor, for example micro-control unit, or logic unit, and interfaces for interacting with its environment.

[0045] The control device may include electrical or network connectors, and / or wireless communication means.

[0046] The control device may include a user interface, configured to provide information about the control device, for example a screen or a series of LEDs.

[0047] The control device may include a door opening sensor.

[0048] The control device can be configured to signal a prolonged opening of the door. For example, the control device sends a signal when the door is open for a predetermined opening time, for example, more than 20 seconds. This signal can be an audible alert, an alert on a control console, a digital alert sent by telephone, internet, or any other network.

[0049] The control device can be connected to a power supply separate from the power supply of the suction cup. In one embodiment, the power supply of the magnetic suction cup is configured to power the control device.

[0050] The piloting device may include an approach sensor, in particular chosen from the group consisting of motion detectors, cameras, proximity sensors, in particular radar or TOF (Time of Flight), and a mixture of these.

[0051] The control device may include an authentication unit, in particular selected from the group consisting of keypads, card readers (remote or proximity), cameras, fingerprint readers, retina readers, ultra-high-frequency (UFH) sensors, ultra-wideband (UWB) sensors, and a combination thereof. Alternatively, the authentication unit may incorporate Bluetooth Low Energy (BLE) technology to operate with a smartphone or a BLE transponder. The authentication unit may also be able to read identification documents at short ranges, less than 50 cm, and in particular less than 10 cm.

[0052] In one embodiment, the approach sensor and the authentication unit can be integrated into the same reading device.

[0053] The control device may include an access button configured to put the power supply into the unlocked state when activated.

[0054] In one embodiment, the control device is configured to detect, only on one side of the door, whether at least one person is approaching the door. In this case, the access button is preferably positioned on the opposite side of the door from the detection side.

[0055] The control device can also be configured to put the power supply into the locked state when a person approaching the door is detected before determining whether or not the person is authorized to pass through the door. This prevents the door from opening before the person's authorization is determined, thus providing an additional security measure.

[0056] The invention further relates, according to another aspect, independently or in combination with the foregoing, to a control device configured to be connected to a power supply of a magnetic lock of a door locking control system, the magnetic lock being capable of being powered by the power supply with a power, called the locking power, enabling the magnetic lock to lock the door in a closed configuration, the control device being configured to detect, at least on one side of the door, whether at least one person is approaching the door or not, determine whether a person is authorized or not to pass through the door and apply the power supply at least: - in a first state, called the default unlocked state, when no person approaching the door is detected, in which: either the magnetic lock is not powered, either the magnetic suction cup is powered with a non-zero power, called holding power, less than a given locking power; - in a second state, called the locking state, when the person or persons approaching the door are unauthorized, a locking state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; The control system is also configured to activate when at least one person is authorized to approach the door: either leave the power supply in the default unlocked state, or put the power supply into a third state, called the state of Ephemeral unlocking, in which the power supplied to the magnetic suction cup is less than the holding power.

[0057] Unlocking method

[0058] The invention also relates, according to another of its aspects, in combination with the above, to a method of unlocking a door using a system as defined above, the method comprising the steps of: - detecting at least one person approaching the door; - determine for the person or persons detected whether or not they are authorized to cross the door; - put the power supply in the ephemeral unlocked state or leave the power supply in said default unlocked state if at least one person or each person is authorized; - put the power supply into the default unlocked state after a predetermined event.

[0059] The predetermined event is chosen from the group consisting of a predetermined duration calculated from the setting in the ephemeral unlocked state, for example a predetermined duration less than 20 s, and the non-detection of a person approaching the door.

[0060] When the control device includes a door opening sensor, the predetermined event can be the detection by the door sensor that the door has been opened.

[0061] For example, the method may include the following successive steps: - detect at least one person approaching the door; - determine for each person detected whether or not they are authorized to cross the door; - put the power supply in the ephemeral unlocked state if each person is authorized; - put the power supply into the default unlocked state after a predetermined event, for example 20 s after putting it into the ephemeral unlocked state.

[0062] For example, the method may include the following successive steps: - detect at least one person approaching the door; - determine for each person detected whether or not they are authorized to cross the door; - put the power supply into a temporary unlocked state if a person is authorized; - put the power supply into the default unlocked state after a predetermined event, for example 20 s after putting it into the ephemeral unlocked state.

[0063] For example, the method may include the following successive steps: - detect at least one person approaching the door; - determine for each person detected whether or not they are authorized to cross the door; - leave the power supply in the default unlocked state if each person is authorized.

[0064] For example, the method may include the following successive steps: - detect at least one person approaching the door; - determine for each person detected whether or not they are authorized to cross the door; - leave the power supply in the said default unlocked state if at least one person is authorized.

[0065] After being put in the unlocked state, the method may include a step in which an unauthorized person approaching the door is detected and a step in which the power supply is put in the locked state.

[0066] The method may include, after the detection step and before the determination step, a step in which the power supply is put into the locked state.

[0067] Locking method

[0068] The invention also relates, according to another aspect, in combination with the foregoing, to a method of locking a door using a system as defined above, the method comprising the steps of: - when no person approaching the door is detected, put the power supply in the default unlocked state; - detect at least one person approaching the door; - determine for the person or for each person detected whether or not they are authorized to cross the door; - put the power supply in the locked state if at least one person is unauthorized or if every person is unauthorized; - to restore the power supply to the default unlocked state after a predetermined event.

[0069] For example, the process comprises the following successive steps: - detect at least one person approaching the door; - determine for the person or for each person detected whether or not they are authorized to cross the door; - put the power supply in the locked state if at least one person is unauthorized; - to restore the power supply to the default unlocked state after a predetermined event.

[0070] For example, the process may comprise the following successive steps: - detect at least one person approaching the door; - determine for the person or for each person detected whether or not they are authorized to cross the door; - put the power supply in the locked state if each person is unauthorized; - to restore the power supply to the default unlocked state after a predetermined event.

[0071] After the locking state is established, the method may include a step in which an authorized person approaching the door is detected and a step in in which the power supply is put into the default unlocked state or into the ephemeral unlocked state.

[0072] The predetermined event may be the non-detection of a person approaching the door, the detection of an authorized person approaching the door.

[0073] The predetermined event can also be the non-detection of a person approaching the door after a predetermined time (which can be adjusted), for example between 3s and 60s, the power supply remaining in the locked state for the entire predetermined time.

[0074] The method may include, after the detection step and before the determination step, a step in which the power supply is put into the locked state.

[0075] Control system

[0076] The invention also relates, according to another aspect, independently or in combination with the foregoing, to a door locking control system comprising: - a magnetic suction cup; - a power supply for the magnetic suction cup configured to provide the magnetic suction cup with power, called locking power, enabling the magnetic suction cup to lock the door in a closed configuration; - a control system configured for: detect, at least on one side of the door, whether at least one person is approaching the door or not; determine whether a person is authorized to cross the threshold; turn on the power supply at least: in a default unlocked state when no person approaching the door is detected in which the magnetic suction cup is not powered, in a locked state when the person or persons approaching the door are unauthorized, locked state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; the control device is also configured so that, when at least one person is authorized to approach the door, the power supply remains in the default unlocked state.

[0077] Control system

[0078] The invention also relates, according to another aspect, independently or in combination with the foregoing, to a door locking control system comprising: - a magnetic suction cup; - a power supply for the magnetic suction cup configured to provide the magnetic suction cup with power, called locking power, enabling the magnetic suction cup to lock the door in a closed configuration; - a control system configured for: detect, at least on one side of the door, whether at least one person is approaching the door or not; determine whether a person is authorized to cross the threshold; turn on the power supply at least: in a default unlocked state when no person approaching the door is detected in which the magnetic suction cup is not powered, in a locked state when the person or persons approaching the door are unauthorized, locked state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; the control device is also configured so that, when at least one person is allowed to approach the door, the power supply is put into a temporary unlocked state, in which the power supplied to the magnetic suction cup is less than the holding power.

[0079] Control system

[0080] The invention also relates, according to another aspect, independently or in combination with the foregoing, to a door locking control system comprising: - a magnetic suction cup; - a power supply for the magnetic suction cup configured to provide the magnetic suction cup with power, called locking power, enabling the magnetic suction cup to lock the door in a closed configuration; - a control system configured for: detect, at least on one side of the door, whether at least one person is approaching the door or not; determine whether a person is authorized to cross the threshold; turn on the power supply at least: in a default unlocked state when no person approaching the door is detected in which the magnetic suction cup is powered with a non-zero power, called holding power, less than the locking power; in a locked state when the person or persons approaching the door are unauthorized, a locked state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; the control device is also configured so that, when at least one person is authorized to approach the door, the power supply remains in the default unlocked state.

[0081] Control system

[0082] The invention also relates, according to another aspect, independently or in combination with the foregoing, to a door locking control system comprising: - a magnetic suction cup; - a power supply for the magnetic suction cup configured to provide the magnetic suction cup with power, called locking power, enabling the magnetic suction cup to lock the door in a closed configuration; - a control system configured for: detect, at least on one side of the door, whether at least one person is approaching the door or not; determine whether a person is authorized to cross the threshold; turn on the power supply at least: in a default unlocked state when no person approaching the door is detected in which the magnetic suction cup is powered with a non-zero power, called holding power, less than the locking power; in a locked state when the person or persons approaching the door are unauthorized, a locked state in which the locking power supplied to the magnetic suction cup prevents the door from being opened by a person; the control device is also configured so that, when at least one person is allowed to approach the door, the power supply is put into a temporary unlocked state, in which the power supplied to the magnetic suction cup is less than the holding power. Brief description of the drawings

[0083] Other features and advantages of the invention will become apparent from the following description, which is purely illustrative and not limiting and should be read in conjunction with the accompanying drawings, on which:

[0084] [Fig-1] [Fig.1] illustrates, schematically, an example of a system according to the invention,

[0085] [Fig.2] [Fig.2] illustrates, schematically, another example of a system according to the invention,

[0086] [Fig.3] [Fig.3] is a functional diagram of an example of a process according to the invention, and

[0087] [Fig.4] [Fig.4] is a functional diagram of another example of a process according to the invention. DETAILED DESCRIPTION

[0088] In the following description, identical elements or elements with identical functions bear the same reference numeral. For the sake of brevity, they are not described opposite each figure; only the differences between the embodiments are described.

[0089] In the figures, the actual proportions have not been respected, for the sake of clarity.

[0090] A first example of a door locking system 1 according to the invention has been illustrated in [Fig.1].

[0091] The system 1 comprises a magnetic suction cup 2, which includes in particular an electromagnet 3 and a metallic counter plate 4. The electromagnet 3 is, for example, positioned on the frame of the door P and the counter plate 4 on the door P. The electromagnet 3 and the counter plate 4 are opposite each other when the door P is closed.

[0092] The suction cup 2 is connected by a wire 6 to an electrical power supply 5 configured to provide the suction cup 2 with power, called locking power, enabling the suction cup 2 to lock the door P in a closed configuration.

[0093] In this example, the power supply 5 operates at 12 V and is connected to the mains. When the power supply 5 provides the locking power to the suction cup 2, the electrical current is, for example, equal to 480 mA.

[0094] The locking power is for example equal to approximately 6 W.

[0095] When powered at the locking power, the suction cup 2 can produce a closing force, that is to say the force to be countered to open the door P, between 2,000 N and 4,000 N, or approximately between 200 kgf and 400 kgf.

[0096] The system 1 also includes a control device 10 comprising a control unit 11.

[0097] The control unit is presented for example in the form of a processor and a data memory in which computer instructions executable by said processor are stored, or in the form of a microcontroller.

[0098] In other words, the functions and steps described can be implemented as a computer program or via hardware components (e.g., programmable gate arrays). In particular, the functions and steps performed by the control unit or the control device can be carried out by instruction sets or computer modules implemented in a processor or controller, or by dedicated electronic components or field-programmable logic circuit (FPGA) components. gate arrays (which literally correspond to an in-situ programmable gate network) or application-specific integrated circuits (ASICs, which stand for application-specific integrated circuits) are examples of such systems. It is also possible to combine computer and electronic components.

[0099] The control unit is thus an electronic and / or computer unit. When it is specified that said unit or the control device is configured to perform a given operation, this means that the unit or device includes computer instructions and the corresponding execution means that enable said operation to be performed and / or that the unit or device includes corresponding electronic components.

[0100] The control unit 11 may also include a user interface, in this example a series of light-emitting diodes.

[0101] The control unit 11 is powered by the power supply 5 through a wire 12.

[0102] The control unit 11 also includes a connector 13 connected to the power supply 5 in order to pilot the latter, as described below.

[0103] The control device 10 also includes one or more approach sensors 15 capable of detecting whether a person is approaching the door P or not, in this example from only one side of the door P. The approach sensors 15 operate, for example, with radar technology and can be positioned on only one side of the door P.

[0104] The approach sensors 15 are connected via a connector 16 to an authentication unit 17, also called a reading head. The authentication unit 17 is configured to determine whether or not a person is authorized to pass through the door P.

[0105] For example, the authentication unit 17 operates hands-free, meaning that the person approaching does not need to produce a key, badge, or similar item. The authentication unit is, for example, capable of reading an access card from a distance of less than 3 meters. The authentication unit 17 operates, for example, with ultra-high frequency (UFH) or ultra-wideband (UWB) sensors. Alternatively, the authentication unit 17 can incorporate Bluetooth Low Energy (BLE) technology to operate with a smartphone or a BLE transponder. The authentication unit 17 can also read identification documents at short distances of less than 10 cm.

[0106] The authentication unit 17 is connected by a connector 18 to the control unit 11 in order to transmit information on the possible detection of a person approaching the door and on whether or not this person is authorized.

[0107] The control device 10 is configured to supply the power supply 5 at least: - in a default unlocked state when no person approaching door P is detected by the proximity sensors 15 in which: either the suction cup 2 is not powered, or the suction cup 2 is powered with a non-zero power, called holding power, less than the locking power, for example less than 50% of the locking power; - in a locked state when the person or persons approaching door P are detected by the proximity sensors 15 and are unauthorized according to the determination of the authentication unit 17, locked state in which the locking power supplied to the suction cup 2 prevents the opening of door P by a person;

[0108] The control device 10 is also configured so that, when at least one person approaching the door P detected by the proximity sensors 15 is authorized, either leave the power supply 5 in said default unlocked state, according to which the magnet 2 can be unpowered or powered with the holding power for example to prevent an untimely opening of the door by a gust of wind, or put the power supply 5 in an ephemeral unlocked state, in which the power supplied to the magnet is less than the holding power (for example when before said detection the power supply 5 was powered with said holding power to prevent an untimely opening of the door).

[0109] The ephemeral unlocked state can have a predetermined duration of between 2s and 10s.

[0110] The power supplied during the ephemeral unlocked state may be less than 50% of the holding power, in particular less than 30%.

[0111] The control device 10 may include a door opening sensor 20 P, connected to the control unit 11 via a connector 21.

[0112] The control unit 11 can be configured to send an alert, for example an audible alert, to an administrator when the door P is open for a period longer than a predetermined period, for example 20 s.

[0113] The control device 10 may include an access button 22, connected by a connector 23 to the control unit 11.

[0114] The access button 22 is positioned on one side of the door, opposite the side of the door P where the approach sensors 15 are positioned.

[0115] When a user presses button 22, the control device 10 puts the power supply 5 either into said default unlocked state or into said ephemeral unlocked state.

[0116] To control the power supply 5, the control device 10 can transmit, via the connector 13, a control signal, for example using a PWM output with duty cycle variation.

[0117] A control circuit, composed of electronic components such as transistors, allows the interface between the control signal and a power supply validation circuit 5.

[0118] The control unit 11 and / or the power supply 5 may include a protection circuit to protect the elements from a possible overvoltage, in particular related to the suction cup 2.

[0119] The control device 10 also includes a measuring circuit 30 configured to measure the electrical current supplied to the suction cup 2. This measuring circuit 30 can detect any overconsumption of the suction cup 2.

[0120] A variant of system 1 of [Fig.1] has been illustrated in [Fig.2].

[0121] In this variant, the power supply 5 of the suction cup 2 no longer supplies the device to control 10. The control device 10 is powered by a second power supply 35 via a wire 37. Such a power distribution can also be applied to the embodiment of [Fig.1].

[0122] In addition, the system 1 includes a closing element 36, in this example a magnetic seal, configured to produce a holding force enabling the door P to be held in a closed configuration and allowing the door P to be opened by a person exerting on the door a force greater than said holding force.

[0123] The magnetic seal can have a closing force of between 10 and 50 N / cm, for example substantially equal to 24N / cm.

[0124] Figure 3 illustrates an example of a method of using a system 1 according to the invention.

[0125] At the beginning of the process, at step E0, the door P is closed and the power supply 5 is in the default unlocked state.

[0126] With system 1 of [Fig. 1], in the default unlocked state, the magnetic lock 2 is powered with a holding force, which is less than the locking force. This holding force is sufficient to prevent the door P from opening, particularly in the case of a gust of wind. Alternatively, for example in a location not subject to gusts of wind, it can be provided that in the default unlocked state, the magnetic lock is not powered so that it does not exert a holding force opposing the opening of the door.

[0127] With system 1 of [Fig.2], in the default unlocked state, the suction cup 2 is not energized. In this case, it is the closing element 36 that keeps the door P closed and prevents it from opening in the event of a gust of wind.

[0128] In a second step El, the approach sensors 15, or at least one of the approach sensors 15, detects one or more persons approaching the door P. As a safety measure, the control device 10 can put the power supply 17 into the locked state in order to secure access.

[0129] The authentication unit 17 determines, for each person, whether or not they are authorized to pass through door P.

[0130] If, at step El, the authentication unit 17 determines that at least one person is not authorized, the control device 10, at step NI, puts the power supply 5 into the locked state. In this locked state, the locking force supplied to the magnetic lock 2 prevents the door P from being opened by a person.

[0131] It can be predicted that the electrical consumption of system 1 is at its maximum during step NI.

[0132] As long as the approach sensors 15 and the authentication unit 17 determine that at least one unauthorized person is approaching the door, the power supply 5 is maintained in the locked state, which ensures access security.

[0133] When no person approaching the door is detected after a predetermined time dN (preferably adjustable), for example between 3s and 60s, the control device 10 returns the power supply 5 to the default unlocked state.

[0134] If, at step El, the authentication unit 17 determines that the detected person(s) are authorized, the control device 10, at step Al, puts the power supply 5 either in the default unlocked state or in the temporary unlocked state. In both cases, the closing force of the magnetic lock is sufficiently weak for a person to open the door P without major difficulty.

[0135] It can be foreseen that, after a predetermined duration dA, for example of 10 s, the control device 10 returns the power supply 5, if it is not already the case, to the default unlocked state.

[0136] However, before the end of the predetermined duration dA, if the control device 10 detects an unauthorized person approaching the door P, the control device 10 proceeds to the NI step described previously.

[0137] In an alternative, illustrated in [Fig. 4], if at least one detected person is authorized at step 11, the control device sets the power supply 5, in step 11, either to the default unlocked state or to the ephemeral unlocked state. In both cases, the closing force of the magnetic lock is sufficiently weak for a person to open door P without major difficulty.

[0138] After a predetermined duration dA, for example of 10 s, the control device 10 returns the power supply 5, if it is not already in the case, to the default unlocked state.

[0139] If, at step El, the authentication unit 17 determines that each detected person is unauthorized, the control device 10, at step Nlb, puts the power supply 5 into the locked state. In this locked state, the locking power supplied to the magnetic lock 2 prevents the door P from being opened by a person.

[0140] When no unauthorized person approaching the door is detected after a predetermined time dN (preferably adjustable), for example between 3s and 60s, the control device 10 returns the power supply 5 to the default unlocked state and returns to step E0.

[0141] If, during step Nlb, the control device 10 detects an authorized person approaching door P, the control device 10 proceeds to step Alb described previously.

[0142] The invention is not limited to the examples just described.

[0143] In particular, the architecture of the control device 10 may be different.

[0144] For example, approach sensors can be chosen from the group consisting of motion detectors, cameras, proximity sensors, including radar or TOF, and a mixture of these.

[0145] For example, the authentication unit, in particular chosen from the group consisting of keyboards, card readers, remote or proximity, cameras, fingerprint readers, retina readers, ultra-high frequency or UFH (in English “ultra-high frequency”) measurement sensors, ultra-wideband or UWB (in English “ultra wideband”) sensors, and a mixture of these.

[0146] The door may be different, for example with at least two leaves or a sliding door.

[0147] The invention is not limited to the embodiments illustrated in the drawings.

[0148] The approach sensor(s) 15 and the authentication unit(s) 17 can be integrated into the same reading device. In other words, the sensors 15 can also be embedded in the authentication unit(s) 17.

[0149] Furthermore, the term "including" does not exclude other elements or steps. In addition, features or steps that have been described with reference to one of the embodiments set out above may also be used in combination with other features or steps from other embodiments set out above.

Claims

Demands

1. A system (1) for controlling the locking of a door (P) comprising: a magnetic lock (2); an electrical power supply (5) for the magnetic lock (2) configured to provide the magnetic lock (2) with power, called locking power, enabling the magnetic lock (2) to lock the door (P) in a closed configuration; a control device (10) configured to: detect, at least on one side of the door (P), whether at least one person is approaching the door (P); determine whether a person is authorized to pass through the door (P);the control device (10) being configured to put the electrical supply (5) at least: - in a first state, called the default unlocking state, when no person approaching the door (P) is detected, first state in which: either the magnetic lock (2) is not powered, or the magnetic lock (2) is powered with a non-zero power, called the holding power, less than the locking power; - in a second state, called the locking state, when the person or persons approaching the door (P) are detected, by putting the electrical supply (5) in the locking state before determining whether the person or persons are authorized to pass through the door (P), locking state in which the locking power supplied to the magnetic lock (2) prevents the door (P) from being opened by a person;the control device (10) also being configured so that, when at least one person approaching the door (P) is authorized, either put the electrical supply (5) into said default unlocking state, a state in which the magnetic suction cup (2) is preferably not powered, or put the electrical supply (5) into a third state, called the ephemeral unlocking state, in which the power supplied to the magnetic suction cup (2) is less than the holding power; in which, to detect, at least on one side of the door (P), whether at least one person is approaching the door (P) or not, the control device (10) includes an approach sensor (15) which is a camera or a radar.

2. System (1) according to claim 1, wherein the holding power is between 10% and 50% of the locking power.

3. System (1) according to claim 1 or 2, comprising a closing element (36) configured to produce a holding force enabling the door (P) to be held in a closed configuration and enabling the door (P) to be opened by a person exerting on the door (P) a force greater than said holding force.

4. System (1) according to the preceding claim, wherein the closing element (36) is selected from the group consisting of magnets, in particular permanent magnets, latch locks, in particular without a cylinder, door closers, for example spring-loaded, a magnetic seal, and a mixture thereof, preferably a magnetic seal.

5. System (1) according to any one of the preceding claims, wherein, to determine whether or not a person is authorized to pass through the door (P), the control device (10) includes an authentication unit (17), in particular selected from the group consisting of keyboards, card readers, remote or proximity, cameras, fingerprint readers, retina readers, ultra-high-frequency measurement sensors, ultra-wideband sensors, and a mixture thereof.

6. System (1) according to any one of the preceding claims, the control device (10) having an access button configured to put the electrical supply (5) into the unlocked state when activated.

7. A method for unlocking a door (P) using a system (1) according to any one of the preceding claims, the method comprising the steps of: detecting at least one person approaching the door (P) and putting the power supply (5) into the locked state; determining for the detected person or persons whether or not they are authorized to pass through the door (P); putting the power supply (5) into the ephemeral unlocked state or putting the power supply (5) into said state by unlock failure if at least one person or each person is authorized; put the power supply (5) into the default unlock state after a predetermined event.

8. Method according to the preceding claim, wherein the predetermined event is chosen from the group consisting of a predetermined duration calculated from the setting in the ephemeral unlocked state and the non-detection of a person approaching the door (P).

9. A method for locking a door (P) using a system (1) according to any one of claims 1 to 6, the method comprising the steps of: when no person approaching the door is detected, putting the power supply (5) into the default unlocked state; detecting at least one person approaching the door (P) and putting the power supply (5) into the locked state; determining for the detected person or for each person detected whether or not they are authorized to pass through the door (P); leaving the power supply (5) in the locked state if at least one person is unauthorized or if each person is unauthorized; returning the power supply (5) to the default unlocked state after a predetermined event.

10. A method according to the preceding claim, wherein the predetermined event is the non-detection of a person approaching the door (P).

11. A control device (10) configured to be connected to an electrical power supply (5) of a magnetic lock (2) of a door (P) locking control system (1), the magnetic lock (2) being capable of being powered by the electrical power supply (5) with a power, called the locking power, enabling the magnetic lock (2) to lock the door (P) in a closed configuration, the control device (10) being configured to detect, at least on one side of the door (P), whether at least one person is approaching the door (P), and to determine whether a person is authorized to pass through the door (P); and the control device (10) being configured to supply the electrical power supply (5) at least: - in a first state, called the default unlocked state, when no person approaching the door (P) is detected, the first state in which: either the magnetic suction cup (2) is not powered, or the magnetic suction cup (2) is powered with a non-zero power, called holding power, less than the given locking power; - in a second state, called the locking state, when the person or persons approaching the door (P) are detected, by putting the power supply (5) into the locking state before determining whether the person or persons are allowed to pass through the door (P), locking state in which the locking power supplied to the magnetic suction cup (2) prevents the opening of the door (P) by a person; the control device (10) also being configured so that, when at least one person approaching the door (P) is authorized: either put the electrical supply (5) into said default unlocked state, a state in which the magnetic lock (2) is preferably not powered, either put the electrical supply (5) into a third state, called the ephemeral unlocking state, in which the power supplied to the magnetic suction cup (2) is less than the holding power, in which, in order to detect, at least on one side of the door (P), whether at least one person is approaching the door (P) or not, the control device (10) includes an approach sensor (15) which is a camera or a radar.

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