RU2530847C1 - Method of inputting encoded opening signal into actuating mechanism of locking device - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: method includes generating an encoded opening signal, transmitting the signal to an external security side, further transmitting the signal to a signal receiver located on the internal security side, decoding the signal and transmitting commands by an electronic device to an actuating mechanism for opening a locking device. An encoded enabling signal is transmitted to the signal receiver through an alternating modulated magnetic field, shielded by a magnetic conductor from the external side of a key. The alternating modulated magnetic field is detected in the receiver, decoded and then transmitted to the electronic device.

EFFECT: preventing or significantly reducing the probability of malicious secret recording of an encoded opening key, wider range of devices for similar purposes.

11 cl, 4 dwg

Description

The technical field to which the invention relates.

The claimed invention relates to a means of locking and unlocking locks, other locking mechanisms using non-mechanical means.

State of the art

Known methods for the optical input of the access code to the controller of the actuator of the door lock. In these methods, optical radiation sources and keys with an optical information carrier are used. Using a carrier, selective illumination of individual elements of the radiation receiver is provided when they are located between the receiver and the radiation source with the generation of a corresponding signal to the executive unit, which unlocks the device upon command from the radiation receiver (DE 2000441, H01J 39/12 of 07/01/1969, or GB 2183717, E05B 19/00 from 11/27/1985, or PCT / SU 91/00124 from 11/13/1990). A common drawback of such technical solutions is the limited number of code elements, which, in turn, limits the number of non-repeating implementations. In addition, the key code used can be easily decrypted, and a duplicate key can be made using well-known and accessible technologies. It should also be noted that in devices that implement the known methods, for the analysis of signals from radiation receivers, as a rule, they use a processor that gives a command to unlock if the presented code matches the code stored in the processor’s memory or generates an alarm if mismatch of the codes mentioned. This leads to a significant complication and cost of devices.

Known methods for optical input of an access code in which a fingerprint is used as a key information medium (see, for example, US 5138468, G06K 9/00, 9/76 of 02.02.1990). The advantage of this method is that the code can not be decrypted, there is no need to use expensive electronic processors. However, systems based on this principle are sensitive to a change in the scale of the presented object. In addition, in the manufacture of one of the elements of the system — a matched filter — extremely high and practically unrealistic requirements for the parameters of the recording medium are presented. Finally, a papillary fingerprint of a particular user can be easily reproduced, for example, by photolithography methods using a randomly left imprint on foreign objects.

The invention is known under the name "Method for optical input of an access code into the controller of the actuator of the lock" (RF patent No. 2334855, E05B 47/00, application No. 2006129592/12, 08/15/2006, publication date of the application 02/20/2008). The method includes emitting optical signals by means of a radiation source of a code key to optical receivers and receiving them last. Optical signals are formed as a combination of at least two signal packets, while the signals are emitted by different optical emitters, transmit and receive them in isolation from each other, each with a separate optical receiver. Optical emitters are placed at a distance from each other, eliminating the possibility of separate reception of signals outside the optical channels. The transmission speed is variable.

When using the invention, there is the possibility of maliciously covert registration of an access code at the time of its entry, although this is difficult.

As a prototype of the claimed invention, the method of inputting a coded opening signal, implemented in the invention “Cylinder door lock” (RF patent No. 2337220, IPC E05B 47/06, application No. 2005108615/12 dated 08.28.2003, publication date on September 20, 2005) was selected.

According to this method, the signal may be a light, radio signal. The disadvantage of these options, as presented above, is the possibility of malicious covert signal registration. The closest in essence to the claimed invention is a variant in which the encoded opening signal is a mechanical vibration, in particular ultrasonic.

The method includes generating a key of an ultrasonic encoded opening signal, applying a signal to the outside of the door, then through a transmission medium, which serves as a locking device and / or door, transmitting a signal to a signal receiver located on the inside of the door, decoding the signal, and issuing a command to the electronic device door opening actuator.

In general, instead of a door, there may be sliding sashes, a manhole cover, etc. protection against penetration into the structure.

The disadvantage of this method is, although to a lesser extent compared to the methods presented above, the possibility of malicious covert registration of the encoded signal.

Disclosure of invention

The task of the invention is to provide a method of inputting a coded opening signal with increased reliability of protection against unauthorized unlocking of the locking device, as well as expanding the arsenal of means for this purpose.

The essence of the claimed invention lies in the fact that in the method of inputting a coded opening signal into a locking device, which includes generating a coded opening signal with a key, supplying a signal to the external side of the protection, then transmitting the signal to a signal receiver located on the internal side of the protection, decoding the signal and issuing an electronic command device to the actuator opening protection, according to the invention, the encoded opening signal is transmitted to the signal receiver using nnogo modulated magnetic field, the magnetic core shielded from the outside key modulated alternating magnetic field is recorded at the receiver, decoded and then transmitted to the electronic device.

It is possible to shield an alternating modulated magnetic field from the receiver side using a closed magnetic circuit between the key and the receiver.

It is possible to camouflage an alternating modulated magnetic field, with which a coded opening signal is transmitted, by forming from the outside of the key outside the shielding magnetic circuit an additional stronger alternating modulated magnetic field.

It is possible to camouflage an alternating modulated magnetic field with which a coded opening signal is transmitted by simultaneously transmitting the same type of encoded signals from several spatially separated closely spaced points, only one of which is an opening signal.

It is possible to enter the code into the key, which enters the encoded signal, immediately before its transmission to the locking device.

An interactive form of signal delivery is possible, including the introduction of a unique code and a conversion law into an electronic device.

It is possible to introduce into the electronic device when closing the locking device a program that provides time restrictions on its opening and / or restriction of the signal list.

It is possible to introduce a program into the electronic device, according to which, after the correct signal has been supplied, the response to the request generated by the electronic unit in the form of an additional signal is sent to the request.

It is possible to supply a signal in the form of separate pulse trains, amplitude and / or frequency modulated.

It is possible that, simultaneously with the signaling, external power supply to the locking device is realized.

The technical result from the use of the claimed invention is that the possibility of malicious covert registration of the encoded signal is completely or significantly reduced due to the complete exclusion of the output or the achievement of an insignificant output of the encoded signal outside the zone of direct interaction of the key-receiver pair. In addition, as indicated in the task of the claimed invention, the arsenal of funds for this purpose is expanding.

The presence of the signs "encoded opening signal is transmitted to the signal receiver using an alternating modulated magnetic field shielded by the magnetic circuit on the outside of the key, an alternating modulated magnetic field is recorded in the receiver, decoded and then transmitted to the electronic device", distinguishing the claimed invention from the prototype that it meets the condition of patentability “novelty”.

During the inspection, no technical solutions have been identified from the prior art that have a feature that matches the hallmark of the claimed invention. On this basis, we can conclude that its condition for patentability is “inventive step”.

Brief Description of the Drawings

Figure 1 schematically shows the location of the elements of the locking device, providing input coded opening signal, an option with a shielding magnetic circuit of the key;

figure 2 - arrangement of the same elements with a closed magnetic circuit;

figure 3 - arrangement of the same elements with the formation of an additional variable modulated magnetic field;

figure 4 - arrangement of the same elements, ensuring the simultaneous transmission of several of the same encoded signals.

The implementation of the invention

In accordance with the image (Fig. 1), a signal receiver 2 connected to an electronic device (not shown) and containing a receiving device is placed on the inner side of the protective device 1 (door, sliding shutter, hatch cover, etc. protection against penetration into the structure) inductor 3. Key 4 contains an inductor 5 mounted in the cavity of the magnetic circuit 6 made of a ferromagnet in the form of an armored core (cylindrical body of an E-shaped section).

To open the protective device 1, the key 4 with the open end of the magnetic circuit 6 is applied to a predetermined location on the outer surface of the protective device 1, and from the coil 5, a code packet is transmitted in the form of an alternating modulated magnetic field to the inductor 3 of the signal receiver 2. In the receiver 2, the signal is recorded and it converted to a form convenient for comparison with a reference code previously stored in the device’s memory. If the comparison result is positive, the electronic device generates a signal to the actuator for opening the protective device (not shown).

In the embodiment of the method shown in Fig. 2, an additional inductor 3 of the signal receiver 2 is shielded using a magnetic circuit 7 from a ferromagnet. The design of the magnetic circuit 7 is similar to that of the magnetic circuit 6. Thus, a closed magnetic circuit is created that completely shields the zone of direct interaction of the key 4 pair receiver 2 ".

In the embodiment of the method depicted in Fig. 3, an external coil 8 is additionally installed on the outside of the key 4, which provides camouflage of an alternating modulated magnetic field, by which a coded opening signal is transmitted by forming an additional stronger alternating variable outside the shield 4 of the magnetic core 6 modulated magnetic field.

In the embodiment of the method depicted in FIG. 4, several spatially spaced closely spaced “key-receiver” pairs 9, 10 are introduced. To open the protective device 1, several codes of the same type are simultaneously input. In this case, the encoded opening signal is supplied by only one key 4 and is perceived by only one receiver 2, and the signals from the remaining pairs camouflage it outside the zone of direct interaction of the “key 4-receiver 2” pair, which ensures the opening of the protective device 1.

In all variants of the implementation of the method, presented both in this section and in the section "Disclosure of the invention", there is a complete absence of output or slight output of the encoded signal outside the zone of direct interaction of the key-receiver pair. Due to which it is most difficult up to the complete exclusion of obtaining the possibility of malicious removal of the code to open the protective device 1.

Thus, the information presented indicates the fulfillment of the following set of conditions:

- the input method of the encoded opening signal, which is based on the claimed invention, provides increased reliability of protection against unauthorized unlocking of the locking device;

- for the claimed invention in the form in which it is described in the claims, the possibility of its implementation using the solutions described in the application and known prior to the priority date is confirmed.

Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (11)

1. A method of inputting a coded opening signal into a locking device, including generating a coded opening signal, supplying a signal to the external side of the protection, then transmitting the signal to a signal receiver located on the internal side of the protection, decoding the signal and issuing a command by the electronic device to the actuator for opening the locking device, characterized in that the encoded opening signal is transmitted to the signal receiver using an alternating modulated magnetic field, screen vannogo yoke on the outside key modulated alternating magnetic field is recorded at the receiver, decoded and then transmitted to the electronic device. 2. The method according to claim 1, characterized in that the variable modulated magnetic field is additionally shielded from the receiver side using a closed magnetic circuit between the key and the receiver. 3. The method according to any one of claims 1 or 2, characterized in that the variable modulated magnetic field, with which a coded opening signal is transmitted, is camouflaged by forming from the outside of the key outside the shielding magnetic circuit an additional stronger alternating modulated magnetic field. 4. The method according to any one of claims 1 or 2, characterized in that the variable modulated magnetic field by which a coded opening signal is transmitted is camouflaged by simultaneously transmitting from several spatially separated closely spaced points of the same type of encoded signals, only one of which is a unlocking signal . 5. The method according to claim 1. characterized in that several encoded opening signals are simultaneously generated and decoded at the same time using several of the same key-receiver pairs. 6. The method according to any one of claims 1 or 2, characterized in that the code is entered into the key by which the encoded signal is entered, immediately before it is transmitted to the locking device 7. The method according to claim 1, characterized in that the signal is supplied in an interactive form, including the introduction of a unique code and a conversion law into the electronic device. 8. The method according to any one of claims 1 or 2, characterized in that a program is introduced into the electronic device when the shut-off device is closed, providing time restrictions on its opening and / or restriction of the signal list. 9. The method according to any one of claims 1 or 2, characterized in that a program is introduced into the electronic device, according to which, after the correct signal has been supplied, a response to the request generated by the electronic unit is sent in the form of an additional signal. 10. The method according to claim 1, characterized in that the signal is supplied in the form of separate pulse trains, amplitude and / or frequency modulated. 11. The method according to any one of claims 1 or 2, characterized in that at the same time as supplying a signal, an external power supply is provided to the locking device.

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