RU2321713C2 - Device to input access code into executive lock mechanism - Google Patents

Abstract

FIELD: protection of different objects against intrusion.

SUBSTANCE: device comprises means for control signal input means and executive lock mechanism controller. Control signal input means comprises indicator, which may repeatedly serially demonstrate indexes in predetermined order. The control signal input means is made as switch incorporated in indicator control link and may stop symbol demonstration as indicator shows index to be input in index set used as access code and as control signal corresponding to selected index is inputted in controller.

EFFECT: increased lock secrecy.

5 cl, 2 dwg

Description

The invention relates to locking devices, specifically to electronic combination door locks with alarm, and can be used to protect various objects from unauthorized persons.

A device for entering an access code into the actuator of the lock containing an electromagnet, a magnetically controlled rod of which is mounted with the possibility of longitudinal movement in the transverse recess of the lock bolt, an electronic control unit of the electromagnet, a code unit containing a metal casing fixed to the door frame structure with a turnkey well, a group of magnets located in a holder in one plane, transverse to the well plane, and parallel to each other and connected to the electronic unit control by means of a casing located on the borehole side, the opposite side of the magnet arrangement of the reading circuit electrical circuit formed by flow-sensing elements sequentially opposite the respective magnets, a protective shunt and a flat key with code holes and magnets placed in them in accordance with the location of the casing magnets (see US Pat. No. 2027836, CL ЕВВ 47/00, 1991).

This device is not vandal resistant, in addition, if a key is stolen, it allows unauthorized access (unauthorized opening of the lock).

A device for entering an access code into the actuator of the lock, including means for inputting a control signal, the controller of the actuator of the lock (see Germany patent No. 3606620 ЕВВ 47/00, 1987). As a means of inputting a control signal, a code key is used, made in the form of an electronic card, and the controller is equipped with a slot for placing a code key in it. Depending on the orientation of the key, the information read from it by the reader determines the direction of rotation of the electric motor, which through the rack and pinion moves the lock bolt into the locking strip or returns it to its original position.

The disadvantages of this castle are

a) locking the bolt in the extended position through the gear transmission, which causes a decrease in the reliability of the lock structure due to the possibility of damage to the transmission mechanism and opening the lock after applying force to the end surface of the bolt;

b) the drive of the locking mechanism is electric, which leads to overload or damage to the engine and locking mechanism during the extension of the bolt when the door is not fully closed or if there is a foreign object in the locking strip;

c) in addition, when a key is stolen, the possibility of unauthorized access (unauthorized opening of the lock) is provided.

The task to which the stated solution is directed is expressed in increasing the security of the lock while excluding the possibility of unauthorized entry of the access code by third parties who possessed the code key.

The technical result, which is manifested in the solution of the problem, is expressed in increasing the reliability of the lock, burglar resistance and vandal resistance of the structure, increasing ease of use.

The result is achieved in that the device for entering the access code into the lock actuator, including the control signal input means and the lock actuator controller, is characterized in that the control signal input means comprises an indicator configured to sequentially display the characters in a predetermined order with repeated repetition, wherein the input means of the control signal is made in the form of a switch in the indicator control circuit with the ability to stop the demonstration of characters when the appearance on the indicator of a character to be entered into the set of characters used as an access code and input into the controller a signal corresponding to the selected character as a control signal, in addition, the indicator is included in the control circuit of the controller of the lock actuator. In addition, the indicator is configured to change the rate at which characters are displayed. In addition, sensors are used in the control circuit of the indicator for remote reception of control signals, while the switch in the indicator control circuit is configured to generate a control signal and transmit it without contact. In addition, the switch is equipped with means for encoding a control signal, while the controller of the actuator of the door lock is equipped with means for decoding this signal. In addition, the switch in the indicator control circuit is made in the form of a contact button.

These features of the invention represent its differences from the prototype and determine the novelty of the proposal; these differences are significant, because they provide the achievement of the technical result reflected in the technical task, and are absent in the known technical solutions with the same effect.

A comparative analysis of the set of essential features of the proposed technical solution with the essential features of analogues and prototype indicates its compliance with the criterion of "novelty."

The features of the characterizing part of the claims solve the following functional tasks.

The signs "... the input signal of the control signal contains an indicator configured to sequentially demonstrate the characters in a predetermined order with repeated repetition" provide the ability to enter an arbitrary sequence of characters that make up the code sequence of characters, while entering a character it is selected from the combination of characters shown in random order i.e. the interactive mode of operation of the access code input device, in which the code key (switch) does not contain any code information, and therefore access to them does not provide the possibility of unauthorized opening of the lock.

Signs "... the input signal of the control signal is made in the form of a switch in the indicator control circuit with the possibility of stopping the symbol display when a symbol appears on the indicator to be entered into the set of symbols used as an access code and input into the controller a signal corresponding to the selected symbol as control signal "provides the possibility of sequential input (set) of characters that make up the code set of characters, with short-term positioning (stop) indicator and select a character.

The signs "... the indicator is included in the control circuit of the controller of the actuator of the lock" ensures that each of the symbols shown by the indicator corresponds to a similar symbol contained in the set of symbols "wired" into the memory of the controller, each of which corresponds to a separate signal (i.e. a signal different from any other output signal) of the controller, which allows, after identification of the dialed code set of characters, to use it to initiate the corresponding operation of Extra locking mechanism.

The signs of the second claim increase the security of the control signal when trying to intercept it.

The signs of the third paragraph of the formula allow the code key to be removable (wearable), i.e. exclude the possibility of intentional destruction of the control buttons by third parties.

The signs of the fourth claim increase the security of the control signal, complicate the possibility of its use in case of interception. The signs of the fifth claim allow to simplify the design of the castle, although they reduce its vandal resistance.

Figure 1 shows a diagram of the operation of the lock with a contact button; figure 2 - scheme of the lock with a remote control code key.

The drawings show the controller 1 of the actuator 2 of the door lock 3, indicator 4, button switch 5 (contact button), control circuit of indicator 6, control circuit of controller 7, sensors 8, remote switch 9.

As a door lock 3, an electromechanical lock of any known type can be used (as the drive of the actuator 2 of which an electric motor or an electromagnet is used - not shown in the drawings).

As the controller 1 can be used an electronic unit, preferably a microcontroller (for example, Microchip 16 F 684), which functionally includes elements that provide solutions to the following problems:

- input and storage of non-volatile access code;

- conversion of the input signal input by pressing the switch 5 or 9 when the indicator 4 shows the character to be selected, into a signal that is part of the generated code sequence;

- the formation of a code sequence from sequential signals entered by pressing the switch 5 or 9;

- comparison of the access code and the generated code sequence;

- the formation of the control signal of the actuator (respectively, its opening or closing).

The named functions are implemented mainly by software. In addition to these functions directly related to ensuring the operation of the lock, the controller 1 can provide a signal about an incorrectly dialed code and / or activate a security alarm or perform another action provided for in the list of options selected when purchasing a lock.

As an indicator, you can use liquid crystal panels on which an image is formed, or indicators implemented on the basis of LEDs, which is preferable, since it provides the possibility of operation without additional light sources in the dark or in insufficient light. In addition, indicators can be made in the form of disks installed with the possibility of rotation, along the perimeter of which symbols are placed and a window is made that allows you to observe part of the disk (i.e., part of the characters from their combination present on the disk).

Numeric (Arabic and / or Roman) and / or alphabetic characters (based on various alphabets), as well as pictograms, etc. can be used as symbols.

As sensors 8 (when using a remote switch), sensors with infrared, optical, magnetic or radio operation principle are used (in accordance with the nature of the signal generated by the remote switch 9). The remote switch 9 may be equipped with means for encoding a control signal, while the controller of the actuator of the door lock must be equipped with means for decoding this signal (these means are implemented in a known manner using known solutions and are not shown in the drawings).

The claimed device operates as follows.

A seven- or sixteen-segment LED (light-emitting diode) digital or alphanumeric indicator 4 mounted with the possibility of viewing its section through a peephole structure and a push-button switch 5, pressing a button are mounted in the door leaf 10 (or the safe door) which causes the interruption of the indicator.

The user goes to the door and presses the button of the push button switch 5, which turns on the indicator, which from a random symbol (i.e. the first symbol to be displayed - a letter - is chosen randomly) starts to show all the symbols displayed on it in a circle. After pressing the button, the symbol, which at that moment was displayed on the indicator, becomes an access code element. The "inertia" display "continues for another 0, 1, 2 or 3 characters (also a random amount). After this, the procedure is repeated several times. It will end when the user clicks on the button and holds it for a long time (more than 3 s) or selects the code end symbol from the displayed sequence. Then controller 1 comes into operation, which, after comparing the dialed code sequence with the access code stored in its memory, either gives the command to perform the corresponding operation to the lock (if the code sequence matches the access code), or gives a signal about the incorrectly dialed code and / or turns on burglar alarm, or performs another action provided by the functions of the lock.

The design described above eliminates the basic methods of breaking the code panel. The presence of a single push-button switch makes any attempt to mark (or track) the button pointless. Losing meaning and dismantling (destruction) of the indicator or button.

Unlike traditional code panels, where 10-12 buttons are used, this code panel uses only one button. With the help of which the user interacts with the lock controller. This reduces the cost and visibility of the code panel. Make it much more compact and protected from manifestations of vandalism.

When performing a wearable button (for example, in the form of an infrared or remote control - remote switch 9), the door or part of the wall is additionally equipped with sensors 8, the findings of which are used in a known manner in the indicator control circuit. The procedure for using the lock in this case corresponds to the above (the only thing is that the remote switch is oriented by radiating elements towards the sensors, after which it is used in the work).

The above embodiment of the present invention allows for various modifications and additions that are obvious to experts in the field to which this invention relates. That is, the present invention in no way can be limited to this description of the proposed device, and it may be amended and supplemented, defined below by the claims.

Claims (5)

1. A device for entering an access code into the actuator of the lock, including means for inputting a control signal and a controller for the actuating mechanism of the lock, characterized in that the means for inputting a control signal comprises an indicator configured to sequentially display characters in a predetermined order with repeated repetition, the input of the control signal is made in the form of a switch in the control circuit of the indicator with the ability to stop the demonstration of characters when the s ox to be introduced into a plurality of symbols serving as an access code and an input signal to the controller corresponding to the selected symbol as a control signal, in addition, the indicator is included in the control circuit of the controller actuator lock mechanism. 2. The device according to claim 1, characterized in that the indicator is configured to change the rate of display of characters. 3. The device according to claim 1, characterized in that in the control circuit of the indicator sensors are used for remote reception of control signals, while the switch in the control circuit of the indicator is configured to generate a control signal and transmit it without contact. 4. The device according to claim 1, characterized in that the switch is equipped with means for encoding a control signal, while the controller of the actuator of the door lock is equipped with means for decoding this signal. 5. The device according to claim 1, characterized in that the switch in the indicator control circuit is made in the form of a contact button.

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