KR102208158B1 - HEMP and IEMI protected video monitoring system - Google Patents

Abstract

The present invention relates to an image monitoring system for HEMP and IEMI protection. The image monitoring system for HEMP and IEMI protection may comprise: a power supply unit protected by an enclosure for protection, and supplying an external power by dropping a voltage; a photographing unit photographing a monitoring area through a light-transmitting protection unit by a camera unit provided in the enclosure for protection for which an opening is protected by the light-transmitting protection unit; a pan-tilt driving unit rotating and tilting the photographing unit, and protected by the enclosure for protection; and a monitoring unit storing and displaying an image photographed by the photographing unit in a protection room, and transmitting the image to an external device through wireless data communication.

Description

HEMP and IEMI protected video monitoring system}

The present invention relates to a video surveillance system for HEMP and IEMI protection, and more particularly, to a system capable of exhibiting efficient protection performance even in equipment having an opening.

In general, EMP (Electro Magnetic Pulse) refers to a phenomenon that permanently damages all electronic products within the explosive range by generating a strong electron storm within a short time due to the explosion of a nuclear explosion or an electron bomb. In particular, HEMP (High-altitude Electro Magnetic Pulse), which is a high-altitude EMP phenomenon, affects a wide area, so the damage is very large.

EMP was accidentally discovered during a nuclear explosion test in 1962, and there is a record of its impact on areas more than 1,000 km away at that time.

HEMP is known to have been used for the first time in the Iraqi War, and it has a frequency of 5 to 8.5 GHz, an output of 10 million KW, an emission angle of 30 degrees, and a current of 1.8 million A.

When a nuclear bomb that generates such HEMPs explodes at a height of 100 km or more above the ground, it destroys integrated circuits and core parts by high-power magnetic pulses stronger than lightning strikes, and penetrates into underground structures through various conductive lines, destroying electronic devices. do.

Since HEMP has a short action time of several nanoseconds, it paralyzes the electronic equipment system without harming humans by the emission of electromagnetic pulses.

In addition, IEMI (Intentional Electro Magnetic Interference) refers to intentional high-power electromagnetic pulses, not nuclear explosions, and causes local damage.

Unlike natural phenomena such as lightning (LEMP) or geomagnetic storm (GIC) caused by sunspot activity, it is distinguished in that it was intentionally created.

In St. Petersburg, Russia, a criminal used to disable the security system of a jewelry store, and in the Netherlands, a criminal who learned how to manufacture through the Internet tried to disrupt the IT system of a local bank by creating an electromagnetic interference the size of a briefcase. Examples are known.

Known as a protection method for such electromagnetic pulses, pulses propagating through the atmosphere can be protected by a sealed hexahedral conductor enclosure, and the interior can be protected by using the entrance door as a shielding door, and transmitted through a conductive line. It is known that the resulting pulse can be protected using a filter device.

However, in order to protect the video surveillance system including the non-conductive lens, it is difficult to provide protection measures for HEMP and IEMI because it is not easy to protect the non-conductive opening including the lens.

Registered Patent No. 10-1157364 of the applicant of the present invention (registered on June 11, 2012, a surveillance camera for electromagnetic wave pulse protection) has a technical configuration in which a wire mesh is applied to the opening side of the lens to protect the surveillance camera. Is described.

Although it is possible to perform protection against electromagnetic pulses by such a structure, there is a concern that the resolution of a surveillance image may be deteriorated by a wire mesh, and protection for the entire video surveillance system is required.

The problem to be solved by the present invention in consideration of the above problems is to provide a video surveillance system for HEMP and IEMI protection capable of performing complete protection of a camera unit having an opening.

In addition, another problem to be solved by the present invention is to provide a video surveillance system for HEMP and IEMI protection capable of designing components of a video surveillance system in a state optimized for protection.

In addition, another object of the present invention is to provide a video surveillance system for HEMP and IEMI protection capable of wireless remote monitoring in a state in which HEMP and IEMI protection is achieved.

The HEMP and IEMI protection video surveillance system of the present invention for solving the above technical problems is protected by a protection enclosure, a power supply unit for supplying external power by voltage dropping, and a protection in which an opening is protected by a translucent protection unit. A photographing unit for photographing a surveillance area through the light-transmitting protective unit by a camera unit provided in the enclosure, a pan-tilt driving unit that rotates and tilts the photographing unit, and is protected by the protective enclosure, and the It may include a monitoring unit that stores and displays the image captured by the photographing unit and transmits the image to an external device through wireless data communication.

In an embodiment of the present invention, the light-transmitting protective part may include a protective lens including a lens part that transmits light and a conductive shielding part surrounding the lens part.

In an embodiment of the present invention, the translucent protection unit includes a front bracket and a rear bracket that are mutually coupled with the protection lens therebetween, and the front bracket is coupled from the inside of the housing of the photographing unit, and the opening and the lens unit It includes a light-transmitting hole having the same diameter as and the rear bracket has a size smaller than that of the front bracket, and may include a light-transmitting hole having the same diameter as the opening and the lens part.

In an embodiment of the present invention, the light-transmitting protective part may include a conductive shielding part and a rear bracket formed between the front bracket and the housing of the photographing part, between the front bracket and the conductive shielding part formed on one surface of the protective lens, and on the other surface of the protective lens. Each of the first to third conductive gaskets disposed therebetween may be further included, and each of the first to third conductive gaskets may be a mixture of silicon and conductive powder.

In an embodiment of the present invention, the photographing unit converts the first EMP filter unit to block EMP introduced through the power supply cable of the power supply unit, and AC power supplied through the power supply cable of the power supply unit into DC power. The A/D conversion unit supplied to the camera unit and a pan-tilt driving control unit that transmits a control signal to the pan-tilt driving unit through a control cable including a processor, and an EMP introduced through the control cable are blocked. It may further include a second EMP filter unit.

In an embodiment of the present invention, the pan-tilt driving unit may include a pan-tilt driving motor that drives the photographing unit.

In an embodiment of the present invention, the power supply unit includes a third EMP filter unit configured to block EMP introduced through an external power line, and the photographing unit through a power supply cable by voltage dropping AC power supplied through the external power line. It may include a voltage drop transformer supplying to the power supply, and a fourth EMP filter to block EMP introduced through the power supply cable.

In an embodiment of the present invention, the monitoring unit includes a converter for receiving image data photographed by the photographing unit through optical communication and converting it into a digital image signal, a storage unit storing the digital image signal, and the digital image signal. It may further include a monitor to display, a router that transmits the digital image signal to a wireless data communication network through an antenna, and a limiter that blocks EMP flowing between the router and the antenna through an RF cable of the antenna.

The present invention has an effect of shielding the opening of the photographing unit by using a translucent protection unit having a central light-transmitting region and a conductive region positioned around the light-transmitting region, thereby protecting the photographing unit having the opening without fear of a decrease in resolution. .

In addition, when the light-transmitting protective part is coupled to the photographing unit housing, by using a conductive gasket, there is an effect of increasing the protective performance.

In addition, the present invention has an effect of reducing the weight of the photographing unit by separating the photographing unit and the power supply unit from each other, reducing the load of the pan-tilt driving unit that pan-tilt driving the photographing unit to reduce power consumption, and ease of maintenance There is an effect that can be secured.

In addition, the present invention has an effect of securing ease of protection by applying only the driving motor to the pan-tilt driving unit.

In addition, the present invention transmits the captured image data to an external network, but by blocking the influence of the EMP flowing through the transmission antenna and the RF cable with a limiter, it is possible to perform remote monitoring using an external device while maintaining the protection performance. It can have an effect.

1 is a block diagram of a video surveillance system for HEMP and IEMI protection according to the present invention.
2 is a detailed block diagram of a photographing unit and a pan-tilt driving unit.
3 is an exploded perspective view of a translucent protective part.
Figure 4 is a perspective view of the combined state of Figure 3;
5 is a diagram illustrating an installation state of a light-transmitting protective unit.
6 is a block diagram of a power supply unit.
7 is a block diagram of a monitoring unit.
8 to 11 are photographs of test reports.

In order to fully understand the configuration and effects of the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms and various modifications may be added. However, the description of the present embodiment is provided to complete the disclosure of the present invention, and to fully inform a person of ordinary skill in the art to which the present invention belongs. In the accompanying drawings, for convenience of description, the size of the components is enlarged compared to the actual size, and the ratio of each component may be exaggerated or reduced.

Terms such as'first' and'second' may be used to describe various elements, but the elements should not be limited by the above terms. The above terms may be used only for the purpose of distinguishing one component from other components. For example, without departing from the scope of the rights of the present invention, the'first element' may be referred to as the'second element', and similarly, the'second element' may be named as the'first element' I can. In addition, expressions in the singular include plural expressions unless clearly expressed otherwise in context. Unless otherwise defined, terms used in the embodiments of the present invention may be interpreted as meanings commonly known to those of ordinary skill in the art.

Hereinafter, a video surveillance system for HEMP and IEMI protection according to the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a video surveillance system for HEMP and IEMI protection according to a preferred embodiment of the present invention.

Referring to Figure 1, the HEMP and IEMI protection video surveillance system according to a preferred embodiment of the present invention, a photographing unit 100, a pan-tilt driving unit 200, a power supply unit 300, a monitoring unit 400, external It is configured to include the device 500.

The photographing unit 100, the pan-tilt driving unit 200, and the power supply unit 300 are each individual component accommodated in an EMP protection enclosure, and the monitoring unit 400 is equipped with an EMP shielding door to enable EMP shielding. Let it be indoor.

By independently configuring the photographing unit 100 and the power supply unit 300, the weight of the photographing unit 100 itself can be reduced to reduce the driving load of the pan-tilt driving unit 200, and the power supply unit 300 Power consumption can be reduced by dropping and supplying the AC voltage to the voltage used by the camera.

The features of the present invention will be described in detail together with the specific configuration of each unit as follows.

2 is a detailed block diagram of the photographing unit 100 and the pan-tilt driving unit 200.

Referring to FIG. 2, the photographing unit 100 of the present invention includes a housing 110 that blocks EMP transmitted through the atmosphere, and is accommodated in the housing 110, and a power supply cable of the power supply unit 300 A first EMP filter unit 120 for removing EMP introduced through 350, an A/D conversion unit 180 for converting AC power filtered by the first EMP filter unit 120 to DC power, and the A camera unit 130 that captures an image by receiving DC power from the A/D conversion unit 180, and a pan-tilt control unit 160 that performs a given operation program to change an area captured by the camera unit 130 ), and a second EMP filter unit 150 for removing EMP introduced through the control cable 170 through which the control signal of the pan-tilt control unit 160 is output.

The first EMP filter unit 120 blocks the influence of EMP flowing through the power supply cable 350 to which the AC voltage (24VAC) of the power supply unit 300 is supplied.

An A/D conversion unit 180 for converting the AC voltage (24VAC) of the power supply unit 300 into a DC voltage (12VDC) is positioned at a rear end of the first EMP filter unit 120.

The housing 110 of the photographing unit 100 includes an opening 111. The opening 111 is provided on the lens side of the camera unit 130 so that the surveillance area can be photographed.

Due to these openings 111, the enclosure 110 has a structure that cannot completely protect HEMP or IEMI propagating through the atmosphere.

That is, unlike the power supply unit 300 and the pan-tilt driving unit 200, the photographing unit 100 must include the opening 111, which is a passage through which external light is introduced, and thus cannot maintain complete protection performance.

In order to implement the complete protection performance of the photographing unit 100, in the present invention, a translucent protection unit 140 that transmits light and protects HEMP or IEMI is provided on the inside of the enclosure 110 in which the opening 111 is formed. It is installed so that the camera unit 130 can capture the surveillance area and completely protect against HEMP and IEMI.

3 is an exploded perspective view of the light-transmitting protective part 140, FIG. 4 is a perspective view of a combined state of FIG. 3, and FIG. 5 is a diagram illustrating an installation state of the light-transmitting protective part 140.

Referring to FIGS. 3 to 5, respectively, a front bracket 142 coupled to the inner side of the housing 110 in which the opening 111 is formed, and a first positioned between the front bracket 142 and the housing 110 The conductive gasket 141 is in close contact with one surface of the front bracket 142 with the second conductive gasket 143 interposed therebetween, and external light flowing through the opening 111 flows into the housing 110 A rear bracket 146 that is contacted with the other surface of the protection lens 144 and the third conductive gasket 145 between them, and is coupled to the front bracket 142. ) Can be included.

The front bracket 142 has a plate-shaped structure, and a light-transmitting hole 142a communicating with the opening 111 is formed in the center.

In addition, on both sides of the front bracket 142, gasket fixing grooves 142b are formed around the light-transmitting holes 142a, respectively, into which portions of the first conductive gasket 141 and the second conductive gasket 143 are inserted. .

That is, the front bracket 142 is partially inserted into the first conductive gasket 141 on one side and the second conductive gasket 143 on the other side, and one side is coupled to the inside of the enclosure 110.

The first conductive gasket 141, the second conductive gasket 143, and the third conductive gasket 145 are mixed with silicon and conductor powder, respectively, have elasticity for airtightness and provide conductivity to allow EMP to flow in. Confidentiality can be maintained so that no space can be created.

The first conductive gasket 141 may be larger than the diameter of the second conductive gasket 143, and the second conductive gasket 143 and the third conductive gasket 145 may each have the same size.

The rear bracket 146 also includes a light-transmitting hole 146a having the same size as the light-transmitting hole 142a of the front bracket 142 in the center, and along the periphery of the light-transmitting hole 146a, the third conductive gasket ( A gasket fixing groove 146b into which a part of the 145 is inserted and fixed is formed.

The gasket fixing groove 146b is assumed to be located only on one side of the rear bracket 146.

The protective lens 144 should be shielded with a conductor so that the surveillance area can be photographed by the camera unit 130 by transmitting light, and voids are not generated.

To this end, the protective lens 144 includes a central lens portion 144a and a conductive shielding portion 144b positioned around the lens portion 144a.

The material of the protective lens 144 may be glass or a resin material having excellent light transmission properties. The conductive shielding part 144b may be formed to be non-transmissive and conductive by applying and curing silver paste on an area of the protective lens 144 made of glass except for the lens part 144a.

The conductive shielding portion 144b is formed on both sides of the protective lens 144, and a region where the conductive shielding portion 144b of the glass lens is not formed becomes the lens portion 144a.

As another example, the conductive shielding part 144b may be formed by cutting and attaching a conductive film.

The diameter of the lens portion 144a of the protective lens 144 is the same as the diameter of the light transmission hole 142a of the front bracket 142 and the light transmission hole 146a of the rear bracket 146.

The front bracket 142 is coupled to the inside of the housing 110 as a conductor, and is coupled with a first conductive gasket 141 therebetween in order to maintain airtightness.

At this time, the first conductive gasket 141 is conductive and may protect EMP propagating through air.

In addition, the other surface of the front bracket 142 is in close contact with the conductive shielding portion 144b of the protective lens 144, and a second conductive gasket 143 is positioned therebetween.

The second conductive gasket 143 prevents the generation of voids between the front bracket 142, which is a conductor, and the conductive shield 144b, which is also a conductor, and can protect EMP.

The rear bracket 146 is coupled to the front bracket 142 with the protective lens 144 interposed therebetween, the front bracket 142, the second conductive gasket 143, the protective lens 144, and the third conductive gasket (145) can be brought into close contact with each other.

The rear bracket 146 is also a conductor, and is brought into contact with the rear side conductive shield 144b of the protective lens 144 by the third conductive gasket 145 as a conductor.

As described above, according to the present invention, by applying the light-transmitting protection unit 140 to the enclosure 110 in which the opening 111 is formed, the surveillance area can be photographed without deteriorating the resolution, and HEMP and IEMI protection are possible.

The pan-tilt control unit 160 transmits a driving signal for driving a motor by executing a given program, including at least a processor and a memory, through the control cable 170.

At this time, the control cable 170 is a voltage signal at this time, which controls the driving of the pan-tilt driving motor unit 230 of the pan-tilt driving unit 200.

Although the control cable 170 is a shielded cable, the second EMP filter unit 150 is used to prevent the EMP from flowing through the control cable 170 when HEMP or IEMI occurs.

The pan-tilt driving unit 200 may adjust the rotation and vertical angle of the photographing unit 100 by the pan-tilt driving motor unit 220.

The pan-tilt driving motor unit 220 of the pan-tilt driving unit 200 is accommodated in the enclosure 210 and is not affected by EMP propagating through the air.

6 is a block diagram of the power supply unit 300.

Referring to FIG. 6, the power supply unit 300 includes an enclosure 310 that performs EMP protection, and a third EMP filter unit 320 located in the enclosure 310 to remove EMP propagating through the external power line 360. Wow, a voltage drop transformer unit 330 that drops the commercial AC voltage transmitted through the third EMP filter unit 320 and supplies it to the photographing unit 100 through a power supply cable 350, and the power supply cable It includes a fourth EMP filter unit 340 for removing EMP flowing through 350.

The external power line 360 is a shielded cable that supplies commercial AC power (220VAC), and a third EMP filter unit 320 is used to remove the influence of EMP that may be introduced through the external power line 360.

The voltage drop transformer unit 330 is an AC-AC transformer and converts 220V into 24V.

According to the present invention, the power supply unit 300 is configured independently of the photographing unit 100 and is protected by the enclosure 310, thereby reducing the weight of the photographing unit 100.

As the relative weight of the photographing unit 100 decreases, the driving load of the pan-tilt driving motor unit 230 of the pan-tilt driving unit 200 may be reduced.

That is, since the capacity of the pan-tilt driving motor unit 230 can be reduced, manufacturing cost can be reduced, and power consumption can also be reduced.

In addition, since the power supply unit 300 and the photographing unit 100 can be individually managed, maintained, and repaired, it is easy to manage, and when an abnormality occurs, it can be easily replaced.

7 is a block diagram of the monitoring unit 400.

Referring to FIG. 7, the monitoring unit 400 includes a protection room 410, and converts image data of the photographing unit 100 received through an optical communication cable 470 in the protection room 410 into electrical data. A converter 440 that converts, a storage unit 430 (DVR) that stores image data converted through the converter 440, and a monitor 420 that displays an image stored or stored in the storage unit 430 And, a router 450 for transmitting video data packets stored or stored in the storage unit 430 to another wireless network, an antenna 480 for wirelessly transmitting data packets of the router 450, and the antenna It may include a limiter 460 that blocks the influence of the EMP introduced through 480.

Hereinafter, the configuration and operation of the monitoring unit 400 configured as described above will be described in more detail.

The monitoring unit 400 is a component for storing and displaying image data in the protection room 410 and transmitting data to another network.

The meaning of the protection room 410 is a space in which protection measures are provided on all lines through which power and data are transmitted from outside, such as power lines and communication lines, and entrance doors that open and close the space are also shielded doors, from the outside through air or cables. It means a space completely blocked from being affected by EMP.

The converter 440 of the monitoring unit 400 receives image data photographed by the camera unit 130 of the photographing unit 100 as an optical signal through the optical communication cable 470.

The converter 440 serves to convert the received image data into digital data that can be easily stored and copied.

The storage unit 430 is a recording device such as a hard disk, and stores digital data converted by the converter 440 and displays it on the monitor 420.

The monitor 420 may simply be a display means for providing a screen, and may be an active means including a computer body and a monitor.

Data stored in the storage unit 430 can be wirelessly transmitted through the router 450. The router 450 configures the storage unit 430 and the Ethernet network and at the same time configures a wireless data communication network together with the external device 500.

Accordingly, the router 450 may transmit data of the Ethernet network to the wireless data communication network through the antenna 480.

The wireless data communication network at this time may be an LTE network or a 5G network.

A limiter 460 is positioned between the router 450 and the antenna 480. The limiter 460 may be integrally configured with an RF connector connecting the router 450 and the antenna 480 or may be configured separately from the RF connector.

The limiter 460 may limit the pulse of the EMP that may be introduced through the antenna 480 so that the equipment in the protection room 410 is not affected by the EMP.

8 to 11 are results of test reports for the prototype of the present invention.

As a test method, MIL-STD-188-125-1:2005 was used.

According to the test results, the present invention shows complete protection performance against HEMP and IEMI.

Although the embodiments according to the present invention have been described above, these are merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent ranges of embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the following claims.

100: photographing unit 110, 210, 310: enclosure
120: first EMP filter unit 130: camera unit
140: light-transmitting protection unit 150: second EMP filter unit
160: pan-tilt control unit 180: A/D conversion unit
200: pan-tilt drive unit 220: pan-tilt drive motor unit
300: power supply unit 320: third EMP filter unit
330: voltage drop transformer unit 340: fourth EMS filter unit
400: monitoring unit 410: protection room
420: monitor 430: storage
450: router 460: limiter

Claims (8)

A power supply unit that is protected by a protective enclosure and supplies external power by voltage dropping;
A photographing unit for photographing a surveillance area through the light-transmitting protective unit by a camera unit provided in the protective enclosure whose opening is protected by the translucent protective unit;
A pan-tilt driving unit that rotates and tilts the photographing unit and is protected by a protective enclosure; And
A monitoring unit that stores and displays the image captured by the photographing unit in the protection room and transmits the image to an external device through wireless data communication,
The translucent protection unit,
A lens part as a central part of the protective lens, a conductive shield part as a silver paste layer located in a region other than the lens part of the protective lens, and a light-transmitting hole fixedly coupled to the protective lens to the protective case, respectively HEMP and IEMI protection video surveillance system including a front bracket and a rear bracket that are closely coupled to the conductive shield on both sides of the protective lens while allowing the lens unit to be exposed. delete The method of claim 1,
The translucent protection unit,
It includes a front bracket and a rear bracket mutually coupled with the protective lens interposed,
The front bracket is coupled from the inside of the housing of the photographing unit, and includes a light transmitting hole having the same diameter as the opening and the lens unit,
The rear bracket is smaller in size than the front bracket, and includes a light-transmitting hole having the same diameter as the opening and the lens unit. The method of claim 3,
The translucent protection unit,
First to third conductive gaskets respectively positioned between the front bracket and the housing of the photographing unit, between the front bracket and the conductive shielding portion formed on one surface of the protective lens, and between the conductive shielding portion and the rear bracket formed on the other surface of the protective lens Including more,
Each of the first to third conductive gaskets is a video surveillance system for HEMP and IEMI protection, characterized in that a mixture of silicon and conductive powder. The method of claim 1,
The photographing unit,
A first EMP filter unit for blocking EMP flowing through the power supply cable of the power supply unit;
An A/D conversion unit converting AC power supplied through a power supply cable of the power supply unit into DC power and supplying it to the camera unit;
A pan-tilt driving control unit for transmitting a control signal to the pan-tilt driving unit through a control cable including a processor; And
HEMP and IEMI protection video surveillance system further comprising a second EMP filter to block the EMP introduced through the control cable. The method of claim 5,
The pan-tilt driving unit,
HEMP and IEMI protection video surveillance system including a pan-tilt drive motor for driving the photographing unit. The method of claim 5,
The power supply unit,
A third EMP filter to block EMP flowing through an external power line;
A voltage drop transformer unit voltage dropping the AC power supplied through the external power line and supplying it to the photographing unit through a power supply cable; And
HEMP and IEMI protection video surveillance system comprising a fourth EMP filter that blocks EMP flowing through the power supply cable. The method of claim 5,
The monitoring unit,
A converter for receiving image data photographed by the photographing unit through optical communication and converting it into a digital image signal;
A storage unit for storing the digital image signal;
A monitor that displays the digital video signal;
A router for transmitting the digital video signal to a wireless data communication network through an antenna; And
HEMP and IEMI protection video surveillance system further comprising a limiter for blocking EMP flowing through the RF cable of the antenna between the router and the antenna.

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