RU2446477C2 - Facility integrated security system - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: integrated security system for a facility, which includes a security and surveillance system, having a first and a second modem, an information processing and display unit and a switching unit, also has at each guarded facility a sensor unit, a signalling unit, a video surveillance unit, an actuating device unit, a unit for aligning video information and a display unit, where said system is provided with a fire alarm system and a perimetre intruder alarm and video surveillance system for the territory of the facility.

EFFECT: broader functional capabilities owing to a fire alarm, perimeter intruder alarm and video surveillance of the territory of the facility.

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Description

The proposed system relates to security means, in particular, to fire and security alarm systems of industrial, economic, administrative and residential buildings of an object, control and management of access to industrial, economic, administrative and residential buildings of a facility, perimeter security alarms and video surveillance of the property's territory.

Known security systems of objects (ed. Certificate of the USSR No. 1,348.361, 1.387.029, 1.690.217, 1.699.013, 1.774.361; RF patents No. 2.012.056, 2.017.216, 2.019.057, 2.116.673, 2.117.762, 2.120.139, 2.163.743, 2.167.432, 2.221.260, 2.246.736, 2.255.354, 2.332.721; U.S. Patent Nos. 4,975,969, 5,361,070; UK Patents Nos. 2,150.724, 2.258.579; Japanese patent No. 4.083.190; Dikarev V.I., Zarenkov V.A., Zarenkov D.V., Koinash B.V. Protection of objects and information from unauthorized access. St. Petersburg, 2004).

Of the known systems closest to the proposed one is the "Security and Surveillance System" (RF patent No. 2.120.139, G08B 13/196, 1998), which is chosen as the base object. The specified system allows video surveillance of a large number of objects with the ability to record, analyze, process information and create a database with its subsequent constant updating, and also allows monitoring not only from a specific remote remote control, but also directly from the apartment (from the monitoring object). This will make it possible to use the system in offline mode (as an "electronic video watchman").

However, the known system can most effectively be used only to suppress unauthorized access to protected (controlled) objects, for example, residential industrial, utility and administrative buildings.

An object of the invention is to expand the functionality and scope of the system by means of fire and security alarms in industrial, commercial, administrative and residential buildings, perimeter security alarms and video surveillance of the property.

The problem is solved in that a comprehensive security system of the facility, including, in accordance with the closest analogue, a security and surveillance system containing the first and second modems, an information processing and display unit and a switching unit, as well as a sensor unit, a unit containing each protected object alarm system, designed to issue an alarm, to regulate the response time of the block of executive devices and their transition to standby mode when simulating the presence of the owner in the apartment, the video surveillance unit a unit, an executive unit, a video information combining unit and a display unit for recording, analyzing, processing information, comparing it with the data of the data bank and creating a database with its subsequent update, while the first modem is connected via a collective communication line and the second modem with the information processing and display unit, the sensor unit is connected to the alarm unit, the output of which is connected to the actuator unit and to the switching unit connected to the first modem and alignment units ideoinformation, the outputs of which are connected to the corresponding display units, and the inputs are connected to certain video surveillance units, differs from the closest analogue in that it is equipped with a security and fire alarm system and a perimeter security alarm system and video surveillance of the object’s territory, each modem being made in the form of series-connected an analog-code converter, a phase manipulator, the second input of which is connected to the output of the master oscillator, the first mixer, the second input of which is connected to the output of the first local oscillator, the amplifier of the first intermediate frequency, the first power amplifier, the duplexer, the input-output of which is connected to the transceiver antenna, the second power amplifier, the second mixer, the second input of which is connected to the output of the second local oscillator, the amplifier of the second intermediate frequency, multiplier, band filter and phase detector, the output of which is the modem output, while the input of the analog-code converter and the output of the phase detector of the first modem are connected to the output and input of the comm unit Utilities, respectively, the input of the analog-code converter and the output of the phase detector of the second modem are connected to the output and input of the information processing and display unit, respectively, the second input of the phase detector of the first modem is connected to the output of the first local oscillator, and the second modem to the output of the second local oscillator, the second input of the multiplier the first modem is connected to the output of the second local oscillator, and the second modem is connected to the output of the first local oscillator, the local oscillator frequencies in W _g1 and W _{g2 are} spaced by the value of the second intermediate frequency W _p2

_Pp2 W = W _{r1 r2} -W,

The collective communication line is made in the form of duplex radio communication using two frequencies W ₁ = W _g2 , W ₂ = W _g1 and complex signals with phase shift keying.

The problem is solved in that the complex security system of the facility differs from the closest analogue in that the fire alarm system contains n sensors for the concentration of gas components in the air released during the smoldering of combustible materials, each sensor through a series-connected matching amplifier and analog-to-digital the converter is connected to a microprocessor connected to an alarm conditioner and used to compare the current values of the measured sensors and concentrations of gas components with the simultaneous formation of ratios of current concentration values and comparing the generated ratio with its predetermined value, a master oscillator, a phase manipulator, the second input of which is connected to the second microprocessor output, a power amplifier and a transmitting antenna through a modulator code generator are connected to the second output of the microprocessor and on the information processing and display unit, the receiving antenna is serially connected, the amplifier is often high s, a mixer, a second input coupled to an output of a local oscillator, an intermediate frequency amplifier, a frequency detector, the trigger and the recording unit.

The problem is solved in that the complex security system of the facility differs from the closest analogue in that the perimeter alarm and video surveillance system includes a rotary camera and a radio wave detector including a microwave generator, the first output of which is connected to the transmitting antenna, the second output is connected to the second input of the balanced mixer and the third output is connected to the first input of the processor, a receiving antenna, a balanced mixer, a low-pass filter, a low-frequency amplifier are connected in series and a processor, the third input of which is connected to the output of the phase modulator of the reflected microwave signal.

The complex security system of the facility includes:

- a system of protection and surveillance of industrial, economic, administrative and residential buildings of the facility;

- fire alarm system of industrial, economic, administrative and residential buildings of the facility;

- perimeter alarm system and video surveillance of the facility.

The structural diagram of the system of protection and surveillance of industrial, economic, administrative and residential buildings of the object is presented in figure 1. Structural diagrams of the first 5 and second 6 modems are shown in figure 2 and 3, respectively. A frequency diagram illustrating frequency conversion of signals is shown in FIG. 4. Structural diagrams of a fire alarm system of industrial, office, administrative and residential buildings of an object are presented in Figs. 5 and 6. Timing diagrams explaining the principle of its operation are shown in Fig. 7. The structural diagram of the perimeter alarm system of the territory of the object is shown in Fig. 8.

The security and surveillance system of industrial, economic, administrative and residential buildings of an object contains, at each protected object, for example, an apartment, a sensor unit 1, an alarm unit 2, a video surveillance unit 3, an actuator unit 4, a first 5 and a second 6 modems, an information processing unit 7 and display, a collective communication line 8, a switching unit 9, a video information combining unit 10, a display unit 11, transmission units 12 and receiving 13 audio signals.

Each modem 5 (6) contains series-connected converter 17.1 (17.2) analog code, phase manipulator 18.1 (18.2), the second input of which is connected to the output of the master oscillator 19.1 (19.2), the first mixer 21.1 (21.2), the second input of which is connected to the output of the first local oscillator 20.1 (20.2), the amplifier 22.1 (22.2) of the first intermediate frequency, the first power amplifier 23.1 (23.2), the duplexer 24.1 (24.2), the input-output of which is connected to the transceiver antenna 25.1 (25.2), the second amplifier 26.1 (26.2) power, the second mixer 28.1 (28.2), the second input of which is connected to the output of the second Goethe homeland 27.1 (27.2), amplifier 29.1 (29.2) of the second intermediate frequency, multiplier 30.1 (30.2), bandpass filter 31.1 (31.2) and phase detector 32.1 (32.2), the output of which is the output of modem 5 (6), while the input of the converter 17.1 the analog code and the output of the phase detector 32.1 of the first modem 5 are connected to the output and input of the switching unit 9, respectively, the input of the converter 17.2 the analog code and the output of the phase detector 32.2 of the second modem 6 are connected to the output and input of the information processing and display unit 7, respectively, the second input 32.1 phase detector first mode MA 5 is connected to the output of the first local oscillator 20.1, and the second modem 6 is connected to the output of the second local oscillator 27.2, the second input of the multiplier 30.1 of the first modem 5 is connected to the output of the second local oscillator 27.1, and the second modem 6 to the output of the first local oscillator 20.2.

The frequencies of the local oscillators W _g1 and W _{g2 are} spaced by the value of the second intermediate frequency W _p2

_Pp2 W = W _{r1 r2} -W.

The collective communication line is made in the form of duplex radio communication using two frequencies W ₁ = W _g2 , W ₂ = W _g1 and complex signals with phase shift keying.

The fire alarm system contains n channels, each of which is designed to measure the concentration of one gas component and contains a sensor in the form, for example, of a gas sensor 33.i, to which a matching amplifier 34.i and an analog-to-digital converter 35 are connected in series. i (i = 1, 2 ..., n). The output of each analog-to-digital converter 35.i is connected to the corresponding input of the microprocessor 36 connected to the shaper 37 of light and sound alarms, equipped with a light 38 and sound 39 signaling devices. The number of n channels depends on the number of gas components, the concentrations of which are measured simultaneously at the initial stage of ignition. A modulator code generator 40, a phase manipulator 42, the second input of which is connected through the master oscillator 41 to the output of the microprocessor 36, a power amplifier 43, and a transmitting antenna 44 are serially connected to the second output of the microprocessor 36.

At the information processing and display unit 7, a receiving antenna 45, a high-frequency amplifier 46, a mixer 48, the second input of which is connected to the output of the local oscillator 47, an intermediate-frequency amplifier 49, a frequency detector 50, a trigger 51, and a registration unit 52 are connected in series.

The perimeter alarm and video surveillance system comprises a rotary camera and a radio wave detector including a microwave generator 54, the first output of which is connected to the transmitting antenna 55, the second output is connected to the second input of the balanced mixer 57, and the third output is connected to the first input of the processor 61, the receiver is connected in series an antenna 56, a balanced mixer 57, a low-pass filter 59, a low-frequency amplifier 60, and a processor 61, the third input of which is connected to the output of the reflected microwave signal phase modulator 58. A microwave generator 54, a transmitting antenna 55, a receiving antenna 56, a balanced mixer 57, and a phase modulator 58 of the reflected microwave signal form a transceiver module 53.

Consider an example of applying a security and surveillance system within the framework of a single entrance to a residential building.

CCTV blocks 3 are installed on the entrance doors of all the apartments of the entrance, as a block 3, a video peephole (camera) 14 with a video signal converter 15 and a low-frequency amplifier with a microphone 16 are used.

Similar CCTV blocks 3 are installed on the entrance door of the entrance and on the level of the third floor overlooking the courtyard (the use of nodes 16 in them is not mandatory).

The signals from blocks 3 are fed to blocks 10 combining video information installed in each apartment. Information from all blocks 10 is fed to the inputs of switching block 9, which provides a signal from the block 2 or a call from block 7 between the subscriber who sent the alarm signal and the monitoring console on which block 7 is installed. In this case, the information received from all blocks 10, through the switching unit 9 in the converter 17.1, the analog code is converted into a modulating code M ₁ (t), which is fed to the first input of the phase manipulator 18.1, to the second input of which harmonic oscillation is output from the output of the master oscillator 16

u _c1 (t) = U _c1 .Cos (W _ct + φ _c1 ), O≤t≤T _c1 .

At the output of the phase manipulator 18.1, a complex signal with phase shift keying (PSK) is formed

u ₁ (t) = U _c1. Cos [W _ct + φ _k1 (t) + φ _c1 ], O≤t≤T _c1 ,

where φ _k1 (t) = {0, π} is the manipulated component of the phase, which displays the law of phase manipulation in accordance with the modulating code M ₁ (t), which is fed to the first input of the mixer 21.1, to the second input of which the local oscillator voltage 20.1

u _g1 (t) = U _g1. Cos (W _g1 t + φ _g1 ).

At the output of the mixer 21.1, the voltages of the combination frequencies are formed, the amplifier 22.1 allocates the voltage of the first intermediate (total) frequency

u _pr1 (t) = U _pr1 .Cos [W _pr1 t + φ _к1 (t) + φ _pr1 ],

;Where

;

W _CR1 = W _c + W _g1 - the first intermediate (total) frequency (figure 4);

φ _pr1 = φ _c1 + φ _g1 .

This voltage after amplification in the power amplifier 23.1 through the duplexer 24.1 enters the transceiver antenna 25.1, is radiated by it at a frequency W ₁ = W _CR2 , is captured by the transceiver antenna 25.2 of the observation point and through the duplexer 24.2 and the amplifier 26.2 power is supplied to the first input of the mixer 28.2, the second input of which the local oscillator voltage 27.2

u _g1 (t) = U _g1. Cos (W _g1 t + φ _g1 ).

At the output of the mixer 28.2, the voltages of the combination frequencies are generated, the amplifier 29.2 produces the voltage of the second intermediate (difference) frequency

u _pr2 (t) = U _pr2 .Cos [W _pr2 t + φ _k1 (t) + φ _pr2 ],

;Where

;

W _CR2 = W _CR1 -W _g1 - the second intermediate (difference) frequency;

φ _pr2 = φ _pr1 -φ _g1 ,

which goes to the first input of the multiplier 30.2. The second input of the multiplier 30.2 is the voltage of the local oscillator 20.2

u _z2 (t) = U _r2 .Cos (W t + φ _{r2 r2).}

At the output of the multiplier 30.2 voltage is formed

u ₂ (t) = U ₂ .Cos [W _g1 t-φ _к1 (t) + φ _g1 ], О≤t≤T _c1 ,

;Where

;

W = W _{r1 r2} -W _np2;

φ _d1 = φ + φ _{r2 np2,}

which is allocated by the band-pass filter 31.2 and arrives at the first (information) input of the phase detector 32.2. The second (reference) input of the phase detector 32.2 is supplied with the voltage u _g1 (t) of the local oscillator 27.2. A low-frequency voltage is generated at the output of the phase detector 32.2

u _н1 (t) = U _н1. Cosφ _к1 (t), O≤t≤T _c1 ,

;Where

;

proportional to the modulating code M ₁ (t). This voltage is supplied to the information processing and display unit 7.

On block 7, which is a computer located on the monitoring console, information is recorded, processed, analyzed, displayed and compared with the data of the data bank, the new information is entered into the data bank and a message is issued, after which the service that ensures the safety of the object is received data decides on specific actions.

A message is issued on the monitoring panel and a command is formed to switch the switching unit 9 for communication with the subscriber who has given the alarm, or with the subscriber of particular interest to the security and surveillance service. To do this, the specified information enters the analog-to-code converter 17.2, which generates the modulating code M ₂ (t). This code is fed to the first input of the phase manipulator 18.2, the second input of which is fed into harmonic oscillation from the output of the master oscillator 19.2

u _c2 (t) = U _c2 .Cos (W _c t + φ _c2 ), O≤t≤T _c2 .

At the output of the phase manipulator 18.2, a complex signal with phase manipulation is formed

u ₃ (t) = U _c2 .Cos [W _c t + φ _к2 (t) + φ _c2 ], O≤t≤T _c2 ,

where φ _k2 (t) = {0, π} is the manipulated phase component that displays the phase manipulation law in accordance with the modulating code M ₂ (t), which is fed to the first input of the mixer 21.2, to the second input of which the local oscillator voltage 20.2

u _z2 (t) = U _r2 .Cos (W t + φ _{r2 r2).}

At the output of the mixer 21.2, voltages of combination frequencies are generated. Amplifier 22.2 stands out the voltage of the third intermediate (differential) frequency

u _CR3 (t) = U _CR3. Cos [W _CR3 t-φ _k2 (t) + φ _CR3 ], O≤t≤T _c2 ,

;Where

;

_PR3 W _r2 = W -W _c - third intermediate (difference) frequency;

_PR3 cp = φ -φ _{r2 s2.}

This voltage after amplification in the power amplifier 23.2 through the duplexer 24.2 enters the transceiver antenna 25.2, is radiated by it at a frequency W ₂ = W _pr3 , is captured by the transceiver antenna 25.1 and through the duplexer 24.1 and the amplifier 26.1 power is supplied to the first input of the mixer 28.1. The second input of the latter is supplied with voltage u _g2 (t) of the local oscillator 27.1. At the output of the mixer 28.1, voltages of combination frequencies are generated. Amplifier 29.1 distinguishes the voltage of the second intermediate (differential) frequency

u _CR4 (t) = U _CR4 .Cos [W _CR2 t + φ _K2 (t) + φ _CR4 ],

;Where

;

_PR3 W _r2 = W -W _PR3 - second intermediate (difference) frequency;

_WP4 cp = φ -φ _{r2 PR3,}

which is fed to the first input of the multiplier 30.1, the second input of which is supplied with the voltage u _g2 (t) of the local oscillator 27.1. At the output of the multiplier 30.1, a voltage is generated

u ₄ (t) = U ₄ .Cos [W _g1 t-φ _к2 (t) + φ _g1 ],

;Where

;

W = W _{r1 r2} -W _np2;

cp = φ _{r1 r2} -φ _WP2,

which is allocated by the band-pass filter 31.1 and arrives at the first (information) input of the phase detector 32.1. The second (reference) input of the phase detector 32.1 is supplied with a voltage u _g1 (t) of the local oscillator 20.1. At the output of the phase detector 32.1, a low-frequency voltage is generated

u _n2 (t) = U _n2. Cosφ _k2 (t), O≤t≤T _c2 ,

Where

which goes to the switching unit 9.

The principle of operation of block 2 is as follows.

If an object (person) appears at the entrance door of the apartment in the coverage area of the corresponding sensor 1 and, after pressing the call, is delayed there for a certain (adjustable) time, sensor 1 is activated and block 2 issues an alarm to the switching unit 9, which, when activated, establishes a connection with unit 7. At the same time, unit 2 sends a signal to unit 4 of executive devices, and the executive unit uses a video recorder located in an apartment in a hidden place to which information is recorded from etstvuyuschego unit 3 for a predetermined time, e.g., one minute, after which the absence of a signal from the VCR unit 2 enters the standby mode. A TV or other reproducing equipment, for example, a music center, which is turned on by a signal from unit 2 to the playback mode for a certain time, for example, for five minutes, in order to simulate the presence of the owner in the apartment during his absence, is also used as an actuator. After the specified time, in the absence of a signal from block 2, the reproducing equipment goes into standby mode.

If the owner is in the apartment, block 2 is turned off and the alarm does not work. In this case, for example, after a doorbell rings, the owner can turn on the TV, which is used as the display unit 11. In this case, the same TV, working in different modes, can be used both as an actuator (block 4) and as a block 11 display. Several video frames coming from block 10 are displayed on the TV screen (from the entrance door, view from the third floor to the courtyard, view from the front door to the apartment and view from the staircase to the floor).

If necessary, in a dialogue mode, the owner can conduct a conversation with an object (person) located in front of the entrance door to the apartment, which blocks 12 and 13 provide communication with. An alarm can also be interpreted as ringing a door with a subsequent attempt to unauthorizedly open the entrance door. In this case, the entire system is activated.

By changing the location of alarm units and actuator units, it is possible to ensure the protection of a wide variety of objects.

Using the system allows video surveillance of a large number of objects with the ability to record, analyze, process information and create a database with its subsequent constant updating, and also allows monitoring not only from a certain remote remote control, but also directly from the apartment (from the monitoring object). This makes it possible to use the system in standalone mode (as an "electronic video watchman").

It has been established that the initial stages of smoldering and ignition of most known combustible materials are characterized by the release of gas components, the main ones being hydrogen (H ₂ ), carbon monoxide (CO), carbon dioxide (CO ₂ ) and aromatic hydrocarbons (C _X H _Y ), and in the first 2-3 minutes their ratios are: K _SHNU : K _H2 : K _CO : K _CO2 = 1: 1.5-2.5: 6.0-8.5: 2.5-4.0,

where K is the current value of the concentration of the gas component in the air in%.

The microprocessor 36 continuously or with a predetermined frequency, for example, after 0.1-1 minute polls the sensors 33.1-33.4, compares the current signal values (corresponding to the current values of the concentration of gas components in the air) received from them and compares the obtained ratios of the current signal values with given ratios of signal values recorded previously and stored in its memory. If the ratios of the current values of the signals coincide with the specified ratios of values, the shapers 37 and 40 receive signals that generate alarms on them: light, sound and modulating code M (t) (Fig. 7, b), which displays the identification number of the fire safety object, and on the master oscillator 41, forming a high-frequency oscillation (Fig.7, a)

u _c (t) = U _c. Cos (W _c t + φ _c ), O≤t≤T _c .

This oscillation is fed to the first input of the phase manipulator 42, to the second input of which a modulating code M (t) is supplied from the output of the driver 40. At the output of the one-time manipulator 42, a complex signal with phase manipulation (PSK) is generated (Fig. 7, c)

u ₁ (t) = U _c. Cos [W _c t + φ _к (t) + φ _c ], 0≤t≤T _c ,

where φ _к (t) = {0, π} is the manipulated component of the phase, which displays the law of phase manipulation in accordance with the modulating code M (t) (Fig. 7, b), and

φ _к (t) = coust at Kτ _e <t <(K + 1) τ _e and can change abruptly at t = Kτ _e , i.e. at the borders between elementary premises (K = 1, 2, ..., N);

Kτ ₃ , N - the duration and number of chips that make up a signal of duration T _s (T _s = Nτ _e ),

which, after amplification in the power amplifier 43, enters the transmitting antenna 44, is radiated by it, is captured by the receiving antenna 45, installed at the control point, and through the high-frequency amplifier 46 is fed to the first input of the mixer 48, the voltage of the local oscillator 47 is supplied to its second input

u _g (t) = U _g. Cos (W _g t + φ _g ).

At the output of the mixer 48, voltages of combination frequencies are generated. The amplifier 49 is allocated the voltage of the intermediate (differential) frequency (Fig.7, g)

u _pr (t) = U _pr Cos [W _pr t + φ _k (t) + φ _pr ],

;Where

;

W _CR = W _c -W _g - intermediate (difference) frequency;

φ _CR = φ _s -φ _g ,

which is fed to the first input of the frequency detector 50.

At the output of the frequency detector 50, a sequence of short bipolar pulses is generated (Fig. 7, e), the temporary position of which corresponds to the moments of a step-like phase change of the FMN signal of intermediate frequency (Fig. 7, g).

These pulses are fed to the counting input of the trigger 51. Each incoming short pulse transfers the trigger 51 to the opposite state. As a result of this, at the output of the trigger 51, an analog of the modulating code M (t) is generated (Fig. 7, b) in the forward M ₁ (t) (Fig. 7, e) or inverse M ₂ (t) (Fig. 7, g) depending on how the state of the trigger 51 is phased and the short bipolar pulses arriving at its counting input (Fig. 7, d).

An analog of the modulating code is fixed by the registration unit 52.

Simultaneous monitoring of several gases increases the reliability of fire detection precisely in the early stages of smoldering and ignition. This eliminates the possibility of false alarms of the measuring device when increasing the concentration of one of the gases for any of the reasons that do not correspond to the ignition process. The latter is possible, for example, as a result of gas leakage from cylinders, tanks or pipelines located in the territory of the protected object, inside or near the protected premises.

In connection with the widespread use of electronic means of security perimeter alarm, requirements for the reliability of their work are increasing.

In standby mode, the signal from the microwave generator 54 is supplied to the transmitting antenna 55 and radiated into a guarded (controlled) space. The signals reflected from the objects through the receiving antenna 56 are fed to the balanced mixer 57. As a heterodyne signal, the microwave generator 54 is used, which is fed to the other input of the balanced mixer 57 (Fig. 8).

If all objects are stationary in the controlled zone, then the low-frequency variable component of the signal at the output of the balanced mixer 57 will be absent. If there is a moving object in the controlled area at the output of the balanced mixer 57, an alternating low-frequency signal appears with a Doppler frequency Fq equal to the phase velocity of the signal received from the moving object. The Doppler signal is extracted by a low-pass filter 59, amplified by a low-frequency amplifier 60, and fed to the input of the processor 61. The processor contains, for example, a threshold signal limiter and a time selector (inertial integrator or signal period counter). When the specified duration is reached when the Doppler signal exceeds the threshold level of the limiter, a permission is generated to issue an alarm notification via the radio wave channel.

In the self-monitoring mode, the microwave generator 54 irradiates the diode modulator 58 through the transmitting antenna 55. The reflected microwave signal, including from the diode modulator 58, enters the balanced mixer 57 through the receiving antenna 56, the microwave signal being received as the local oscillator at its other input the generator 54. If the pn junction of the diode is stationary (for example, open or closed), then at the output of the mixer 57 an alternating signal will be absent. If the pn junction of the diode opens and closes with a certain frequency F, then the phase of the signal reflected from it will change with frequency F. In this case, an alternating voltage component with frequency F will appear at the output of mixer 57, the amplitude of which depends on the magnitude of the reflection phase difference open and closed pn junction diode. The difference in the reflection phases depends on the absolute value of the phase of incidence of the microwave signal, and therefore, on the location of the diode. Therefore, the installation location of the diode is chosen so that at the input of the processor 61 the level of the test signal is provided, sufficient and necessary for its subsequent measurements and decision-making when changing it.

Using a modulator allows you to determine the fact of masking the radio wave channel. If a reflector, for example a metal screen, is introduced into the near zone of the transceiver module 53, then the microwave energy of the field irradiating the modulator 58 will increase. At the same time, the level of the phase-modulated signal at the input of the balanced mixer 57 will increase. This will lead to an increase in the test signal at the input of the processor 61, which can be used to detect masking of the radio wave channel.

Thus, the proposed complex security system of the facility, in comparison with the prototype and other technical solutions of a similar purpose, provides not only the suppression of unauthorized access to guarded (controlled) facilities, for example, residential, industrial, utility and administrative buildings, but also fire and security alarms of industrial, household, administrative and residential buildings, as well as perimeter signaling and video surveillance of the territory of the protected (controlled) facility.

This increases the reliability of the exchange of information between the first and second modems. This is achieved through the use of duplex radio communication between them at two frequencies W ₁ , W ₂ and complex signals with phase shift keying (PSK), which have high noise immunity, energy and structural secrecy.

The energy secrecy of complex FMN signals is due to their high compressibility in time and spectrum with optimal processing, which reduces the instantaneous radiated power. As a result, a complex PSK signal at the receiving point may be masked by noise and interference. Moreover, the energy of a complex FMN signal is by no means small; it is simply distributed over the time-frequency domain so that at each point of this region the signal power is less than the power of noise and interference.

The structural secrecy of complex FMN signals is caused by a wide variety of their forms and significant ranges of parameter changes, which makes it difficult to optimally or at least quasi-optimally process complex FMN signals of an a priori unknown structure in order to increase reception sensitivity.

Complex FMN signals allow the use of an effective type of selection — structural selection.

The widespread use of the proposed system allows you to effectively deal with such negative phenomena as apartment thefts, and with thefts at other secure objects (warehouses, shops, garages, etc.).

Simultaneous monitoring of several gases increases the reliability of fire detection precisely in the early stages of smoldering and ignition. This eliminates the possibility of false alarms of the measuring device when increasing the concentration of one of the gases for any of the reasons that do not correspond to the ignition process. The latter is possible, for example, as a result of gas leakage from cylinders, tanks or pipelines located in the territory of the protected object, inside or near the protected premises.

The perimeter alarm system determines the fact of movement in a controlled area. The system instantly provides information about the traffic zone to the facility. Repeated video cameras automatically turn in the direction of the movement zone.

This system completely controls the paths of formation of the passage of the Doppler signal, determines the masking of the radio wave channel.

Thus, the functionality and scope of the known system are expanded.

Claims (3)

1. The complex security system of the facility, including a security and surveillance system, containing the first and second modems, an information processing and display unit and a switching unit, as well as a sensor unit containing an alarm unit for signaling an alarm to control the time, which contains at each guarded object actuation of the actuator unit and their transition to standby mode when simulating the presence of the owner in the apartment, a video surveillance unit, an actuator unit, a video information combining unit and display ok, intended for recording, analyzing, processing information, comparing it with information from a data bank and creating a database with its subsequent updating, while the first modem is connected via a collective communication line and the second modem with an information processing and display unit, the sensor unit is connected to an alarm unit, the output of which is connected to a switching unit connected to the first modem and a video information combining unit, the outputs of which are connected to the corresponding display units, and the inputs are connected to a certain video surveillance units, characterized in that it is equipped with a security and fire alarm system and a perimeter security alarm system and video surveillance of the facility, each modem is made in the form of an analog-code converter, phase manipulator, the second input of which is connected to the output of the master oscillator, the first mixer, the second input of which is connected to the output of the first local oscillator, the amplifier of the first intermediate frequency, the first power amplifier, duplexer, input-output connected to the transceiver antenna, the second power amplifier, the second mixer, the second input of which is connected to the output of the second local oscillator, the second intermediate frequency amplifier, multiplier, band pass filter and phase detector, the output of which is the modem output, while the input of the converter is analog-code and output the phase detector of the first modem is connected to the output and input of the switching unit, respectively, the input of the analog-converter converter and the output of the phase detector of the second modem are connected to the output and input of the unit For information processing and display, respectively, the second input of the phase detector of the first modem is connected to the output of the first local oscillator, and the second modem to the output of the second local oscillator, the second input of the multiplier of the first modem is connected to the output of the second local oscillator, and the second modem to the output of the first local oscillator, local oscillator frequency W _g1 and W _g2 spaced by the value of the second intermediate frequency W _CR2
Np2 W = W _{r1 r2} -W,
The collective communication line is made in the form of duplex radio communication using two frequencies W ₁ = W _g2 , W ₂ = W _g1 and complex signals with phase shift keying. 2. The complex security system of an object according to claim 1, characterized in that the fire alarm system contains n sensors for the concentration of gas components in the air released during smoldering of combustible materials, each sensor being connected through a series-connected matching amplifier and an analog-to-digital converter with a microprocessor connected to the shaper of the alarm and designed to compare the current measurement values with sensors of the concentration of gas components with simultaneous by forming the ratios of the current concentration values and comparing the formed ratio with its predetermined value, a master oscillator, a phase manipulator, the second input of which is connected to the second microprocessor output, a power amplifier and a transmitting antenna through a modulating code generator, are connected to the second output of the microprocessor, and on the information processing unit and displaying in series a receiving antenna, a high-frequency amplifier, a mixer, the second input of which is connected to the output m LO, an intermediate frequency amplifier, a frequency detector, the trigger and the recording unit. 3. The complex security system of an object according to claim 1, characterized in that the perimeter alarm and video surveillance system comprises a rotary video camera and a radio wave detector including a microwave generator, the first output of which is connected to the transmitting antenna, the second output is connected to the second input of the balanced mixer, and the third output - with the first input of the processor, a receiving antenna, a balanced mixer, a low-pass filter, a low-frequency amplifier and a processor, the third input of which is connected to the output of the module phase of the reflected microwave signal.

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