RU47118U1 - LOCAL SYSTEM OF CONTROL AND MANAGEMENT OF ACCESS TO PREMISES BASED ON BIOMETRIC IDENTIFICATION - Google Patents

Abstract

Use: to protect various objects from the penetration of unwanted unauthorized persons. Essence: a local control system for access to premises based on biometric identification contains an electrically coupled reader, controller, actuator and control object. A microprocessor video processing unit is introduced into the system controller. The system is supplemented by a block of light indicators, a sound notification system and a data input device, which can be, for example, a personal computer. The ACS reader is made optoelectronic, the microprocessor video processing unit contains a dedicated digital channel, the actuator is a unit made in the form of a digital microcontroller connected to the microprocessor video processing unit with a dedicated digital channel. The light indicator block, the sound notification system and the data input device are connected to the microprocessor-based video image processing unit through the corresponding connectors.

Description

The proposed utility model relates to techniques for protecting various objects (offices, common areas and other closed guarded objects, as well as computing and information resources, bank terminals, safes and vaults) against the penetration of unwanted unauthorized persons and can be used to create autonomous control systems and access control (ACS) based on biometric identification.

Identification using biometric technologies is currently one of the most promising, rapidly developing areas, among which methods and tools using fingerprints occupy one of the leading places. Biometric technologies are increasingly becoming leaders in the security industry, in the fight against crime and terrorism.

A number of analogs of local access control and management systems are known: the Scientific-Production Complex SoyuzSpetsAvtomatika, Moscow, the KODOS system; CJSC Picard, St. Petersburg, System PIKAR SKD-2000; Relvest-SB, Moscow, system "Parsec SC-TP05".

Local ACSs available on the market are organized according to a scheme using the TouchMemory identifier, an NTO-card reader (or its analogues), or mechanical access devices (keys). The lock control actuator (usually the lock is 12V, 1A)

usually integrated in the reader housing. Also found

actuators integrated in turnstiles, lock doors, barriers. The main disadvantage of these systems is the presence of a key that can be lost, copied, transferred, etc.

Also known is an intelligent card (credit, bank) with an integrated circuit integrated into it (see RF patent No. 2212708, IPC 7 G 06 K 19/07, publ. 2003.09.20), which is an identifier in a local system designed to ensure security when making trade deals. A distinctive feature of the card is that it is adapted to interface with a card reader and contains a substrate with mounted on it:

a storage device for storing data of a scanned fingerprint sample, an interface circuit with a card reader, a processing unit, a battery, a set of function keys and a display unit. The card has an important advantage, which is that it provides the ability to verify the fingerprint of the owner using the built-in circuit, thereby reducing the risk that occurs when the card is lost, and allows you to block the possibility of its use by another person. However, a disadvantage of the known technical solution is that the user must carry the card with him to complete trade transactions, in addition, it can be mechanically damaged, lost, etc.

Electronic keys are known (see copyright certificates of the USSR No. 1082923, MKI E 05 B 47/00, op. 30.03.84, No. 1437488, MKI E 05 47/00, op. 07.08.89, RF patent No. 22495977, IPC 7 E 05 B 49/00, op. 2005.02.10), which, despite the variety of designs, have a common drawback - the key may be damaged, copied, lost, etc.

The closest in technical essence to the proposed utility model is the PW-303 device, manufactured by the Elix group, Russia, selected as a prototype (see. SKUD. Anti-terrorism - 2005 catalog, p. 63). The device is designed to build local ACS and is a stand-alone controller-reader that is compatible with the identifiers of the Em-Marin or HID standard. PW-303 consists of a reader connected electrically to each other, installed near the controlled entrance, on a turnstile, gateway, etc. and a remote controller located inside the guarded room. Programming the device (up to 255 user codes) is carried out using a master card. Thus, the functional diagram of the closest analogue selected as a prototype contains: a reader, a controller electrically connected to the reader, and an actuator (relay) integrated in the controller that controls the control object, that is, the lock. The described access control system has wide operational capabilities, for example, in case of danger, each user can enter the “pass under duress” code, which activates an alarm output, instead of an individual code, and if necessary (card loss, etc.), it is necessary to separately remove the code from the controller’s memory taken card. This is an undoubted advantage of the device. However, despite these advantages, the disadvantage of the well-known ACS, selected as a prototype, is the presence of an identifier-card, which can be copied, lost or damaged mechanically. The disadvantages of the system should also include the combination of the actuator with the controller (control system). The consequence of this is the low reliability of the system. In addition, a significant disadvantage of the prototype is that in case of loss of the card, it must be re-manufactured (that is, to incur material costs.

The objective of the utility model is to increase the reliability of protection of protected objects by reducing the likelihood of unauthorized access while expanding the circle of persons of authorized access at no additional cost.

To solve the tasks, a local system for monitoring and controlling access to premises based on biometric identification is proposed, which, like the system closest to it, selected as a prototype, contains an electrically connected reader, controller, actuator, and control object. A feature of the proposed utility model that distinguishes it from the well-known one adopted as a prototype of a local access control and management system is that a microprocessor video processing unit is introduced into the controller. In addition, the system is supplemented by a block of light indicators, a sound notification system and a data input device, which can be, for example, a personal computer. The ACS reader is made optoelectronic, the microprocessor video processing unit contains a dedicated digital channel, the actuator is a unit made in the form of a digital microcontroller connected to the microprocessor video processing unit with a dedicated digital channel. The light indicator block, the sound notification system and the data input device are connected to the microprocessor-based video image processing unit through the corresponding connectors.

The tasks set during the creation of a utility model, was made possible thanks to the following.

In contrast to the prototype, which uses an identifier card that may be lost or damaged, and a reader compatible with it, in the claimed utility model it is proposed to use an optoelectronic sensor as a reader, with which

individual biometric parameters are determined that are obtained by scanning a user's fingerprint, which are used to identify the user. Thus, fingerprint information provides not only the fulfillment of one of the tasks - expanding the circle of persons with authorized access, but also solves another problem: there is no need for the cost of producing an identifier card, which costs about two dollars.

The essential features included in the utility model formula are those related to the new, different from the prototype, construction of the local ACS itself: its controller includes a microprocessor video processing unit, and the actuator is allocated, in contrast to the prototype, in a separate microprocessor controlled unit a video processing unit via a dedicated digital channel. Such control reduces for the attacker the potential for direct electronic impact on the control object (lock). This made it possible to solve the main problem, the utility model is aimed at, namely, increasing the reliability of the facility’s protection. The rest of the newly introduced essential features (a block of light indicators, a sound notification system and a data input device) ensure the functioning of the inventive system.

Thus, the combination of the above features allows us to solve the tasks.

The proposed utility model is illustrated by a drawing, which shows a functional diagram of a specific example of a local ACS using biometric identification. The following notation is introduced on the functional diagram:

1 - optoelectronic reader;

2 - controller;

3 - microprocessor-based video processing unit;

4 - actuator relay type;

5 - control object (lock);

6 - block light indicators;

7 - sound notification system;

8 - dedicated digital communication channel;

9 - data input device.

The optoelectronic reader 1 is used in the proposed utility model for converting the luminous flux containing biometric information (fingerprint) into digital data (DATA), which is transmitted through the XI connector to the microprocessor video processing unit 3 of controller 2. The optoelectronic reader 1 is also electrically powered (POWER, GND) and its state management (CONTROL). The microprocessor-based video image processing unit 3 is intended for preliminary filtering, processing, analysis and correction of a raster image received from an optoelectronic reader 1, as well as for converting fingerprint information into a unique code corresponding to a fingerprint. During the operation of the system, this code performs user identification operations. Controller 2 performs the function of controlling the actuator 4 of the relay type through connector X7 via a dedicated digital channel 8. Controller 2 through connectors X5, X6 controls the system status indicators: block 6 light indicators and sound notification system 7. To provide electrical power to the microprocessor-based image processing unit 3, connector X7 is used. Using the USB connector (X8), you can configure the system and add, remove and other operations with users using an external

data input devices 9. Actuator 4 of the relay type is designed for direct control of access devices - control objects (locks) 5. Using connector X10, actuator 4 either closes or opens the power circuit of the control object (lock) 5 (LOCK_PWR_IN, LOCK_PWR_OUT, LOCK_GND), depending on the encoded command of the controller 2 RELE_CTRL, supplied together with + 12V power supply to the X9 connector of the actuator 4 of the relay type. The control object (lock) 5 is designed to directly unlock or lock the door to the secure room. Depending on the type of lock, the supply or shutdown of the electric power LOCK_PWR_OUT of a certain power brings the control object (lock) 5 to the required state. The block of light indicators 6 simultaneously with the sound notification system 7 serve to visually and soundly display the status of the system, its operation mode. The signals RED, GREEN, GND of connector Х2 and SOUND, GND of connector ХЗ are used by controller 2 to transmit the necessary information to the indicated blocks 6 and 7 of the system.

In the claimed utility model as an optoelectronic reader 1 is used, for example, an optoelectronic sensor manufactured by NITGEN, South Korea, Seoul. Controller 2 is based on ATmega8L-8MI (MLF32) microcircuits manufactured by ATMEL (USA), as well as other industrial microcircuits, for example, ADM101EARM (mSOIC), 74HC125D (SO-14). Actuator 4, which is a digital microcontroller assembled on the basis of the industrially manufactured ATmega8-16MI (MLF32) microcircuit manufactured by ATMEL (USA) and other industrially produced electronic components. For example, a relay LS (Russia) can be used as a relay, and electromagnetic locks ML-395A as locks

(Taiwan), ML-194 (Russia), ZVD2 electromechanical lock or their analogues.

The local control and management system for access to premises based on biometric identification works as follows.

The person with the right of access applies a finger to the window of the optoelectronic biometric reader 1. The fingerprint is read. The fingerprint information received by the reader 1 is transmitted to the microprocessor video processing unit 3, in which it is converted into a unique code corresponding to the fingerprint, compared with information stored in the memory unit of the microprocessor video processing unit 3, and if the microprocessor video processing unit 3 matches through the controller 2, through connector X7, through a dedicated digital channel 8 gives a command to the actuator 4 of the relay type. At the same time, a green indicator lights up in the light indication unit 6, at the same time a short beep is heard. At the same time, the actuator 4 feeds the opening signal to the control object (lock) 5, which directly unlocks or locks the doors to the secure room. In case of unsuccessful identification, the signal to unlock the control object (lock) 5 is not generated, while the red indicator lights up and a longer sound signal sounds.

Thus, in the claimed utility model through the use of individual biometric parameters determined by scanning a fingerprint and a new, different from the prototype, construction of the local access control system itself, it became possible, without additional costs, to significantly expand the range of authorized access persons, increase the reliability of protection of protected objects and reduce the likelihood unauthorized access.

Claims (2)

1. Local control system for access to premises based on biometric identification, containing an electrically connected reader, controller, executive device and control object, characterized in that the microprocessor video processing unit is introduced into the controller, and the system is supplemented by a light indicator unit, an audio warning system and a data input device, wherein the reader is optoelectronic, the microprocessor-based video image processing unit contains a digitally allocated Channel 1, the actuator is a block made in the form of a digital microcontroller connected to a microprocessor-based video processing unit with a dedicated digital channel, and the light indicator block, sound notification system, and data input device are connected to the microprocessor-based video image processing unit through the corresponding connectors. 2. The local system according to paragraph 1, characterized in that the data input device is a personal computer.