RU2540883C2 - Method of inputting encoded unlocking signal into actuating mechanism of locking device - Google Patents

Abstract

FIELD: physics; control.

SUBSTANCE: invention relates to means of locking and unlocking locks and other locking mechanisms using non-mechanical means. The method includes generating an ultrasonic encoded unlocking signal; transmitting the signal to the external side of a protection means, further through a transmitting medium which is a locking device and/or the protection means; transmitting the signal to a signal receiver located on the internal side of the protection means; decoding the signal in an electronic device and transmitting a command by the electronic device to the actuating mechanism for unlocking the protection means; the invention provides screening the ultrasonic encoded unlocking signal reflected from the protection means from the external side of the protection means.

EFFECT: preventing or significantly reducing the probability of malicious secret detection of an encoded unlocking signal.

11 cl, 3 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.

The level of technology.

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 unrealizable in practice requirements are imposed on the parameters of the recording medium. 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 substantially 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 an ultrasonic encoded opening signal, applying a signal to the outside of the door (protection), then through a transmission medium, which is a locking device and / or door, transmitting a signal to a signal receiver located on the inside of the door, decoding the signal in an electronic device and giving a command by an electronic device to the door opening actuator.

In general, instead of a door (protection), 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.

The essence of the claimed invention lies in the fact that in a method of inputting a coded opening signal into a locking device, including generating an ultrasonic encoded opening signal, supplying a signal to the outside of the protection, then through a transmission medium, which serves as a locking device and / or protection, transmitting the signal to a signal receiver located on the inside of the protection, decoding the signal in an electronic device and issuing a command by the electronic device to the actuator m Opening protection according to the invention provide shielding protection from the outside of it reflected ultrasonic opening encoded signal.

An ultrasonic encoded opening signal may be formed as narrowly directed.

It is possible to generate several signals from different points of space or from different angles, while only one is opening, and the rest play the role of its silencers from other directions of registration.

It is possible the simultaneous formation of several opening signals, their simultaneous transmission to the respective receivers and their joint decoding in an electronic device.

A dialogue form of signal supply is possible, provided by the presence in the locking device of an additional ultrasonic transmitter controlled by an electronic device and a corresponding signal receiver in the device for supplying opening signals.

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

It is possible, when closing the locking device, the introduction of the program in the electronic unit, according to which time restrictions are introduced for opening the locking device and / or limiting the list of signals.

It is possible to enter the code into the key immediately before it is transmitted to the locking device, including in parts known, for example, to the sender and receiver.

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

It is possible to supply a signal to a signal receiver located on the inside of the protection through an extended sound-conducting body.

It is possible, simultaneously with the signal, to supply the locking device from the outside with power, for example, due to an additional inductor installed behind the protection.

The technical result from the use of the claimed invention is that the possibility of malicious covert registration of a coded opening signal is eliminated or significantly reduced.

The presence of the sign “provide shielding from the outside of the protection of the ultrasound encoded opening signal reflected from it”, which distinguishes the claimed invention from the prototype, allows us to assume that it meets the patentability condition of “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 shows a diagram of the operation of a locking device with a signal shielding; figure 2 and 3 presents options for the operation of the locking device with additional measures of protection against malicious registration of the ultrasonic opening signal.

The implementation of the invention.

The claimed method is implemented by means of a locking device including an ultrasonic signal receiver 1, an electronic device 2, an opening actuator 3 located behind the protection 4. An ultrasonic transmitter 5 of the opening signal 6, controlled by the programming unit 7, is installed on the outside of the protection 4. Reflections 8 of the opening signal from protection 4 are shielded from malicious registration on the outside of the protection 4 using a sound-absorbing screen 9, which can be a protection element 4 or set Xia conjunction with transmitter 5.

The claimed method is carried out in the following way. To protect 4, a transmitter 5 and a sound-absorbing screen 9 are installed on a previously known place on it. The programming unit 7 generates an opening ultrasonic signal 6 transmitted by the transmitter 5 through the protection 4 to the signal receiver 1. In the electronic device 2, the signal is decoded and an executive command is issued to the executive opening mechanism 3. The sound-absorbing screen 9 prevents malicious registration of the reflection 8 of the ultrasonic opening signal 6 from the protection 4 from its outer side at a distance from the point BB and the opening ultrasonic signal 6, on which multiple reflections from the protection 4 begin to overlap. To reduce the dimensions of the sound-absorbing screen 9, the transmitter 5 is narrowly oriented, and the opening ultrasonic signal 6 is supplied as separate pulse trains, amplitude and / or frequency modulated at high frequency, in order to speedy achievement of the mixing of the reflected signals 8 on the outer side of the protection 4.

Figure 2 presents a variant of the operating circuit of the locking device with additional measures of protection against malicious registration of the opening ultrasonic signal 6. To do this, use additional ultrasonic transmitters 10 transmitting ultrasonic signals 11, used as background and masking the transmission of the ultrasonic opening signal 6. Using an extended sound-conducting body 12 allows to increase the angular selectivity when receiving an ultrasonic opening signal 6 and to provide greater reception protection Nickname 1.

In the embodiment of the locking device shown in FIG. 3, additional ultrasonic receivers 13 are used simultaneously receiving different signals 11 from the respective transmitters 10. The signals received by receivers 6 and 13 are jointly decoded in the electronic device 2, after which a command is issued to the opening actuator 3.

In the case of using universal transceivers as a receiver 1 and a transmitter 5, it is possible to implement a dialog form of signal transmission, when after supplying the correct opening signal, the electronic device 2 sends an ultrasonic request signal 14 of an additional opening signal in a format known in advance to the receiver through the transceiver 1. The request 14 is processed by the controlled programming unit 7 and visualized on the display 15. The recipient must type on the keyboard 16 the response to the request 14, after which the controlled programming unit 7 generates an additional opening signal transmitted through the universal transceiver 5 to another receiver transmitter 1, and transmission channels 10 and 13 may be involved. An additional opening signal is decoded in electronic device 2, after which a command is issued to the executive mechanisms still opening 3.

An additional protection measure is the possibility of entering into the locking device through an ultrasonic transmission channel into the electronic device 2 a program that provides time limits for opening the locking device and / or limiting the list of signals.

An additional protection measure is the ability to enter the code of the opening signal into the programming unit 7 in parts known, for example, to the sender and receiver.

An additional protection measure is the possibility of simultaneously supplying an external power supply signal to the locking device, for example, due to an additional inductor installed behind the protection 4.

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 an ultrasonic encoded opening signal, applying a signal to the outside of the protection, then through a transmission medium, which serves as a locking device and / or protection, transmitting a signal to a signal receiver located on the inside of the protection decoding a signal in an electronic device and issuing a command by an electronic device to an actuator for opening a locking device, characterized in that provide shielding protection from the outside of it reflected ultrasonic opening encoded signal. 2. The method according to claim 1, characterized in that the opening signal is formed as narrowly targeted. 3. The method according to claim 1, characterized in that they generate several signals from different points of space or at different angles, while only one is opening, and the rest play the role of its silencers from other directions of registration. 4. The method according to claim 3, characterized in that they simultaneously form several opening signals that are different from each other, at the same time they are transmitted to the respective receivers and jointly decoded in an electronic device. 5. The method according to claim 1, characterized in that they use the dialog form of signal transmission provided by the presence in the locking device of an additional ultrasonic transmitter controlled by an electronic device and a corresponding signal receiver in the device for supplying opening signals. 6. The method according to claim 5, characterized in that a program is entered into the electronic unit, according to which, after the correct signal has been supplied, the response to the request generated by the electronic unit by means of an additional ultrasonic transmitter is sent as an additional signal. 7. The method according to claim 1, characterized in that when the shut-off device is closed, a program is introduced into the electronic unit that provides time limits for its opening and / or restriction of the signal list. 8. 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. 9. The method according to claim 1, characterized in that the signal is transmitted to the signal receiver located on the inside of the protection through a burnt sound-conducting body. 10. The method according to claim 1, characterized in that at the same time as the signal is supplied, an external power supply is provided to the locking device, for example, due to an additional inductor installed behind the protection. 11. The method according to claim 1, characterized in that the code is entered into the key immediately before it is transmitted to the locking device, including in parts known, for example, to the sender and the recipient.

Images