LT4607B - A method and a device of a security system - Google Patents

Abstract

This invention is intended for security systems, i.e. for entrance door control in buildings of various purposes and security with the help of technical means. The scanning device of the security system electronic key (2) identification code is dielectric, mounted on the outer wall of the entrance door or in the door itself and thus reliably protected against any damage from the outside, remotely scanning the electronic key (2) identification code through a magnetic induction method. The security system operation method differs from other known methods by the fact that pressing the button of a talk device (8) installed in any premises or flat, or a local control button fitted on the inner entrance door side, temporarily turns off the alarm unit (4), and also by the fact that it turns on a warning alarm when the door is opened by an electronic key which is not registered in the security system memory.

Description

The invention relates to security systems, i.e. Technical measures for control and protection of entrance doors of multi-purpose buildings.

Various electronic security systems for building entry doors are known to unlock the door only to those who hold a valid electronic key - a card. For example, U.S. Patent No. 5,140,317 describes an electronic security system consisting of an electronic locking mechanism and an electronic key. Each one has a microprocessor controller and memory to store the identification data (ID code). If the identification data stored in the electronic key matches the data in the microprocessor memory, the electronic key affects the solenoid, which retracts and unlocks the door locking mechanism. It should be noted that the power for this operation is provided by the power source inside the electronic key, which from time to time will either need to be changed or recharged.

Another US patent 5,422,634 describes a locking system with a key having an integrated circuit memory. Electronic Key - The card can be used many times, it cannot be forged or replaced with another key. The door lock shall be unlocked only when the identification codes in the electronic key - card coincide with the code in the lock.

The major disadvantage of this security system is that the electronic key card must be inserted into a special reading device slot on the outside of the entrance door that can be intentionally blocked by any foreign object.

The present invention is intended to ensure the safety of citizens and the protection of urban utilities by improving the security equipment already installed in some premises or homes, making the security system of the invention accessible not only to elite but also to ordinary users.

The security system of the invention is universal and is intended for control and protection of buildings of any purpose. Protection and control are carried out by technical means. When attempting to break the door or open it in the unregistered security system memory with an electronic key - card, trying to enter the building through other places (balcony doors, windows, etc.) with appropriate security sensors, triggers an alarm signaling to the security panel and local alarm system. The alarm system is connected to the fire system, so the alarm is activated even if other system sensors (fire, smoke, etc.) are triggered.

The security system is externally inviolable as there is no standard door lock or electronic key - card reader device slot on the outside of the entrance door, which could be intentionally damaged or blocked by any foreign object. entry through the door is possible with the help of an electronic key in the form of a credit card, which needs to be placed in the magnetic field of the electronic key reader, blindly concealed in the concrete wall or built into the door. The personal identification code, stored in the electronic key, is read by magnetic induction at a distance of up to 12 cm from the electronic key reader. Preferably, the plane of the electronic key is parallel to the plane of its reading device mounted on the wall or door.

This electronic key does not require any additional power, i.e. there is no risk of depletion of the batteries. Each electronic key has a unique identification code that can be up to 4.5 billion in combinations. Each user has his own electronic key. Each electronic key has its own unique code. it is impossible to enter the building if the electronic key code is not stored in the security system's memory. If an electronic key is lost, its data is deleted from the security system's memory and the new electronic key's data is saved.

All running system operations or its state, i.e. every allowed door unlock, every unsuccessful attempt to unlock the door in an unregistered security system memory with an electronic key, attempt to break the door, data on the state of the lock (locked or unlocked, defective or in order), triggering of security or fire sensors, etc. are recorded in the system memory and may, if necessary, be printed on paper or reproduced on any other medium.

The invention will now be described with reference to a schematic representation of a security system.

As can be seen in Figure 1, the key element of the security system of the present invention is an electronic unit - controller 1, which is a microprocessor controlling all functions of the security system. Controller 1 is powered by a 220V / 50Hz power supply via a voltage converter or a 12V / 1.2Ah battery installed inside. Battery capacity is sufficient for 7 days autonomous operation, so there is no risk that in case of unexpected power failure or power failure of the building, the security system will stop working or all data stored in the security system memory, such as, allowable electronic key codes.

To open the building door from outside, the electronic key 2 must be placed in the magnetic field area of the reading device 3. Electronic Key 2 is in the form of a credit card, airtight, non-destructive, and does not require any power source to operate. Preferably, the planes of the electronic key 2 and the reading device 3 are approximately parallel during their alignment.

An innovation of the present invention is that the electronic key reading device 3, which is a flat antenna made of dielectric, is blindly mounted on the outer wall of the entrance door or on the door itself. In this way, the reading device 3 of the electronic key 2 is intact, i.e. it shall not be capable of being deliberately blocked or otherwise mechanically damaged as a slot in a standard reading device which is inserted into the electronic key while it is being read. The location where the electronic key reader 3 is installed shall be marked with a special mark. This makes it much easier to accurately place the electronic key of the security system in the magnetic field area of the reading device 2. The maximum distance at which the security system reader 3 reads the electronic key 2 identification code by magnetic induction is 12 cm. The scanned electronic key code is identified by the logic unit 1 of the controller and compared to the codes allowed in the security system memory.

If the identification code of the scanned electronic key 2 is stored in the memory of the security system, the controller 1 disables the alarm box 4 and forwards the signal to the electric actuator 5 which unlocks the lock. When entering, the door must be closed. When the door is closed, the door sensor 6 activates, which sends a signal to the controller 1, which again activates the security system alarm unit 4 and sends a signal to the electric door 5 of the entrance door lock, which locks the lock and thus the door.

If the code of the scanner electronic key 2 is not stored in the security system memory, the controller 1 sends a signal to the installed local alarm system 7, and the alarm is sounded three times. The alarm system shall not be deactivated and the door shall not be opened.

In order for the guest to enter the building, i.e. a person without an electronic key must contact the "Master" via the push-button communication device 8 located outside the entrance door. The "master" presses the remote control button, the signal is sent to the controller 1, which disables the alarm unit 4 and activates the electric actuator 5 of the entrance door lock. When you go in, the door is closed, the door sensor 6 is triggered and the security system starts operating as described above.

When exiting the building, the door is opened by means of a local control button located inside the entrance door. In this case, the operation of the security system is the same as when opening the door with the remote control button.

If an attempt is made to break the entrance door of the building, the door sensor 6 is triggered. The signal sent by this sensor goes to controller 1, which by telephone or radio transmits it to the security panel 9 and the local audio alarm 7. signal from security or fire detectors 10.

The operation of the security system is controlled and programmed from the local control panel 11. This means that all operations related to monitoring, modifying, debugging of the security system, elimination of malfunctions, recording of new electronic key identification codes in the memory of the security system and identification of unnecessary or lost electronic keys deleting codes from the security system memory.located on the local control panel 11.

As can be seen from the above, the security system operates reliably and autonomously, i.e. no outside intervention is required. The security system is characterized by automatically recording all events related to its functioning. Every sanctioned door opening, every attempt to open the door in an unregistered security system memory with an electronic key, every attempt to break the door, data on the state of the lock (locked or unlocked, defective or in order), triggering of security or fire detectors, etc. are captured in the security system memory and may be displayed on a monitor on the local control panel 11 or printed on paper as needed.

It is clear to those skilled in the art that such security systems can be interconnected into a single global system that is a large security - information system, assembling! information necessary for protection. Each security panel can be connected via telephone lines or radio waves to a central control panel, which collects, evaluates, processes, archives information data of security systems included in its global system and manages the entire security complex. In order to ensure better and more reliable communication between protected objects and the central station, additional stations - repeaters can be installed, which receive signals from the protected objects and transmit them to the central station, whose condition and functionality is controlled by the same central station.

Claims (2)

An alarm system consisting of a controller (1) identifying electronic key (2) codes, controlling a building entrance door lock electric actuator (5) and all security system functions, an electric actuator (5) locking and unlocking the entrance door, electronic key (2) containing identification data, electronic key reader (3), door opening sensor (6), push-button device (8), alarm unit (4), local alarm (7), security panel (9) , security and fire detectors (10), a local control panel (11) for monitoring and modifying the operation of the security system, characterized in that the security system electronic key (2) reading device (3) consists of a flat dielectric, blindly mounted on the outer wall of the entrance door or on the door itself and thus securely protected from any external damage by a magnetic vessel remotely retrieving the identification code of the electronic key (2). 2. A method of operating a security system comprising remotely reading, via magnetic induction, the identification code of the electronic key (2) by means of a blindly mounted device (3) in the outside wall of the entrance door and the identification code corresponding to the security code stored in the security system memory. opening by unlocking the electric drive lock (5) and temporarily deactivating the alarm unit (4), characterized by temporarily deactivating the alarm unit (4) by pressing the button of the push-to-talk device (8) located in any room or apartment or locally controlled a button located on the inside of the building's entrance door as well as activating a warning signal when trying to unlock the door in an unregistered security system memory with an electronic key (2).