KR101203952B1 - Monitoring device of the EMP shelter - Google Patents

Abstract

PURPOSE: A performance monitoring device of an electromagnetic pulse protection facility is provided to monitor performance of a protection facility protecting wiretapping and an electromagnetic pulse by an electromagnetic wave in real time. CONSTITUTION: An antenna(51) receives a sky wave in an inside of a protected room. A spectrum analyzing device(55) analyzes a receiving signal of the antenna and expresses signal intensity for a frequency axis or a time axis. A sensor(53) is connected to a power terminal connected to a protection filter and outputs to the spectrum analyzing device by receiving a signal which is through the protection filter. [Reference numerals] (51) Antenna; (52) Amplifier; (53) Sensor; (54) Transmitting/receiving unit; (55) Spectrum analyzing device; (56) Controlling device

Description

Monitoring device of the EMP shelter

The present invention relates to an apparatus for monitoring the performance of a protection facility that protects eavesdropping and EMP by electromagnetic waves, and more particularly, an antenna for receiving airwaves inside a protection room that spatially protects eavesdropping and EMP by electromagnetic waves. The sensor is connected to a power supply terminal connected to a protection filter that electrically protects wiretaps and EMPs by electromagnetic waves, and is connected to a sensor that receives a signal passing through the protection filter, and an overvoltage protection device that prevents overvoltage from occurring in the protection filter. Analyzes the signal receiving unit and the signal received by the antenna, the sensor and the receiving unit that changes as the performance of the overvoltage protection device is degraded due to the aging change of the overvoltage protection device, indicating the signal strength on the frequency axis or time axis. A protection analyzer, a protection filter, and a It is about the performance monitoring device of EMP protection facility to know whether the performance of overvoltage protection device is maintained.

In general, electromagnetic pulses (EMPs) are electromagnetic shock waves generated by nuclear explosions. They are processed by generating an electric field of approximately 50 kV / m and a very large electromagnetic energy of 5000 A without directly damaging life and buildings. It destroys electronic circuits induced through power lines and communication lines or directly applied to devices, and instantly paralyzes all electronic devices operating as semiconductors, such as military equipment, communication equipment, computers, mobile devices, and computer networks, in ns units. In recent years, because of the possibility of destroying enemy industrial facilities while avoiding international criticism of the killing of humans, the enemy's military communication without harming people and buildings as modern warfare is carried out by communication and weapon systems based on the electronics industry. EMP bombs that can neutralize all power systems, including weapon systems, require countermeasures against enemy nuclear development and high-altitude nuclear tests and attacks. In addition, electromagnetic waves occur in wired / wireless audio and video devices, and the detection and use of various kinds of information are frequently used. In the US, the term TEMPEST is defined and used to protect wiretap by electromagnetic waves.

As the necessity of preventing leakage of personal, corporate and national information by electromagnetic waves generated from paralysis of command and weapon systems by the EMP weapons and wired and wireless devices increases, it is possible to protect the eavesdropping and EMP by the electromagnetic waves. As the technology (protection facilities) is standardized by IEC at home and abroad, it is recommended to take countermeasures. FIG. 1 is a perspective view schematically illustrating a conventional protection facility. Referring to FIG. 1, a protection facility includes a protection room through a protection room 100 and a power line that spatially block EMPs and electromagnetic waves. 100) and a protective filter (not shown) for conductively protecting the EMP and electromagnetic waves flowing in and out. In general, the protection filter is connected to an overvoltage protection device (not shown) which discharges when an overvoltage occurs and configures a bypass circuit as a ground circuit to prevent EMP from flowing into the protection target device.

The protective room 100 is a facility for spatially protecting the wire tapping by EMP and electromagnetic waves, and joins a metal plate by welding or bolting to form an outer wall 110, and a door 120 through which people and devices can enter and exit. As the door 120 is continuously opened and closed, foreign matter is generated between the knife and the finger of the door 120 and the welded portion of the metal plate is cracked due to thermal expansion or the building itself. There is a problem that the tightness of the bolt is loosened by the mechanical vibration or shock generated during the equipment installation process in the protection room 100, the shielding degree of the protection room 100 is lowered. In addition, the protection filter conductively protects the tapping by EMP and electromagnetic waves, and the performance is deteriorated by lightning which occurs over 20 times a year for an overvoltage protection device that prevents overvoltage from being applied to the protection filter. There is a problem that can not achieve its purpose.

However, as described above, there is no device that can detect and display the protection facilities that spatially and conductively prevent eavesdropping by EMP and electromagnetic waves. There is a problem that cannot be confirmed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

It is an object of the present invention to provide a performance monitoring apparatus for an EMP protection facility that can actively and intelligently monitor in real time the performance of a protection facility that protects eavesdropping and EMP from electromagnetic waves in a spatial and conductive manner.

In addition, the present invention is a spectrum indicating the signal strength on the frequency axis or time axis by measuring the electric field strength of the antenna receiving the airwaves and the airwaves received by the antenna in the interior of the protective room to protect the EMP and EMP spatially It is an object of the present invention to provide a performance monitoring device of an EMP protection facility, including an analyzer, which can easily check whether the performance of the protection room is maintained by changing the signal strength.

In addition, the present invention is connected to a power supply terminal connected to a protective filter for protecting the EMP and EMP by electromagnetic waves and a sensor for receiving the signal passed through the protective filter, and the signal output from the sensor to analyze the frequency axis or It is an object of the present invention to provide a performance monitoring device of an EMP protection facility, including a spectrum analyzer indicating a signal strength on a time axis, which can easily check whether the performance of the protection filter is maintained by changing the signal strength.

In addition, the present invention is connected to an overvoltage protection device that prevents the occurrence of overvoltage in the protection filter, the receiving unit for receiving a signal that is generated from the overvoltage protection device and changes as the performance of the overvoltage protection device is degraded, and in the receiving unit Performance monitoring of the EMP protection facility, which can easily check whether the performance of the overvoltage protection device is maintained by changing the signal strength, including a spectrum analyzer that analyzes the output signal and indicates the signal strength on the frequency axis or the time axis. The purpose is to provide a device.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to an embodiment of the present invention, the performance monitoring apparatus of the EMP protection facility according to the present invention includes an antenna for receiving airwaves inside the protection room for intercepting the EMP and the EMP spatially; A spectrum analyzer indicating a signal strength on a frequency axis or a time axis by measuring the electric field strength of the airwaves received by the antenna, and checking whether the performance of the protection room is spatially maintained by changing the signal strength of the airwaves. Characterized in that it can.

According to another embodiment of the present invention, the performance monitoring device of the EMP protection facility according to the present invention is connected to a power supply line connected to a protection filter for protecting the EMP and tapping by electromagnetic waves to receive a signal passed through the protection filter And a sensor for outputting to the spectrum analyzer, wherein the spectrum analyzer analyzes the signal to indicate signal strength on a frequency axis or a time axis, and maintains the performance of the protective filter conductively through a change in the signal strength. It is characterized by being able to confirm whether it is done.

According to another embodiment of the present invention, the performance monitoring device of the EMP protection facility according to the present invention is connected to an overvoltage protection device for preventing overvoltage from occurring in the protection filter, the overvoltage due to the aging change of the overvoltage protection device And a receiver that receives a signal that changes as the performance of the protection device decreases and outputs the signal to the spectrum analyzer, wherein the spectrum analyzer analyzes a signal generated from the overvoltage protection device to determine a signal strength with respect to a frequency axis or time. In this case, it is possible to confirm whether the performance of the overvoltage protection device is maintained by changing the signal strength.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention has the effect of actively and intelligently monitoring in real time the performance of the protective facility to protect the eavesdropping and EMP by electromagnetic waves spatially and conductively.

In addition, the present invention is a spectrum indicating the signal strength on the frequency axis or time axis by measuring the electric field strength of the antenna receiving the airwaves and the airwaves received by the antenna in the interior of the protective room to protect the EMP and EMP spatially Including an analyzer, there is an effect that can be easily confirmed whether the performance of the protective room is maintained through the change in the signal strength.

In addition, the present invention is connected to a power supply terminal connected to a protective filter for protecting the EMP and EMP by electromagnetic waves and a sensor for receiving the signal passed through the protective filter, and the signal output from the sensor to analyze the frequency axis or Including a spectrum analyzer indicating the signal strength on the time axis, there is an effect that can be easily confirmed whether the performance of the protection filter is maintained through the change in the signal strength.

In addition, the present invention is connected to an overvoltage protection device that prevents the occurrence of overvoltage in the protection filter, and is received from the overvoltage protection device and receives a signal that changes as the performance of the overvoltage protection device is degraded due to aging change, Including a spectrum analyzer indicating the signal strength on the frequency axis or time axis by analyzing the signal output from the receiver, there is an effect that can easily determine whether the performance of the overvoltage protection device is maintained through the change in the signal strength .

1 is a perspective view schematically showing a conventional protection facility.
2 is a block diagram of a performance monitoring apparatus according to an embodiment of the present invention.
3 is a circuit diagram of a protection filter and an overvoltage protection device used in connection with a performance monitoring apparatus according to an embodiment of the present invention.
4 is a perspective view of an overvoltage protection device used in connection with a performance monitoring apparatus according to an embodiment of the present invention.
5 is a reference view for explaining the operation of the performance monitoring apparatus according to an embodiment of the present invention.
6 is a picture of a screen output from the performance monitoring apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the performance monitoring device of the EMP protection facility according to the present invention will be described in detail. Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and, if conflict with the meaning of the terms used herein, It follows the definition used in the specification. In addition, detailed description of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

2 is a block diagram of a performance monitoring apparatus according to an embodiment of the present invention, Figure 3 is a circuit diagram of a protection filter and an overvoltage protection device used in conjunction with the performance monitoring apparatus according to an embodiment of the present invention, Figure 4 Is a perspective view of an overvoltage protection device used in connection with a performance monitoring apparatus according to an embodiment of the present invention, Figure 5 is a reference diagram for explaining the operation of the performance monitoring apparatus according to an embodiment of the present invention, 6 is a picture of a screen output from the performance monitoring apparatus according to an embodiment of the present invention.

Since the performance monitoring device 5 according to an embodiment of the present invention monitors the performance of a protection facility that spatially and conductively protects an EMP, the performance monitoring device 5 will be described first in connection with the protection facility. 5) will be described.

As shown in FIG. 5, the protection facility conductively protects the EMP and the electromagnetic wave flowing in and out of the protection chamber 100 through a power line or the like, as shown in FIG. 5. And a protection filter (circuit) 2 for protection, and an overvoltage protection device (circuit) 1 for preventing overvoltage from being applied to the protection filter 2. Since the protection chamber 100 and the protection filter 2 use conventional techniques, only the overvoltage protection circuit 1 and the apparatus 3 will be described below. The protection filter 2 means an EMP protection power filter or a signal filter that is conventionally used.

3 and 5, the overvoltage protection circuit 1 is located in front of the protection filter circuit 2 to prevent overvoltage from being applied to the protection filter circuit 2, and the overvoltage protection circuit 1 Are first and second inductors L ₁ and L ₂ connected in series to a power line PWL, and a front power line PWL and a ground line of the first inductor L ₁ . A first overvoltage protection unit 11 connected between the GND and the power line PWL and the ground line GND between the first inductor L ₁ and the second inductor L ₂ . The second overvoltage protection unit 12 is included.

The first and second inductors L ₁ and L ₂ are connected in series to the power line PWL and have a high impedance with respect to a high frequency. The first inductor L ₁ has a second inductor L ₂ . It is also located closer to the input side (L) of the power line (PWL), it is also possible to use a ferrite bead instead of an inductor.

The first overvoltage protection unit 11 is configured to be connected between the front power line (PWL) and the ground line (GND) of the first inductor (L ₁ ) to discharge the overvoltage to configure a ground circuit, preferably An arrester is used. The arrester has a feature that the response speed is relatively slow but the current resistance is large so that it is not easily broken when the overvoltage is removed.

The second overvoltage protection unit 12 is connected between the power line PWL and the ground line GND between the first inductor L ₁ and the second inductor L ₂ , so that the first overvoltage protection unit is connected. The overvoltage not removed by (11) is discharged to constitute a ground circuit, and includes a varistor 121, a fuse 122, a performance display unit 123, and the like.

The varistor 121 is connected between the power line PWL and the ground line GND to conduct a current due to an overvoltage output from the first inductor L ₁ . Since the speed is high, the high-speed overvoltage not removed by the first overvoltage protection unit 11 may be removed. The fuses 122 are connected to the front end of the varistor 121 and the power line PWL, respectively, to prevent a short circuit accident of the power system due to damage of the varistor 121.

The performance display unit 123 is configured to monitor and monitor the performance of the varistor 121, a rectifier diode 123a connected in parallel between the varistor 121 and the fuse 122, and the rectifier diode 123a. The light emitting diodes 123b connected to the rear ends of the light emitting diodes, the resistors 123c connected to the rear ends of the light emitting diodes 123b and the ground lines GND, and the light emitted from the light emitting diodes 123b are changed. And a phototransistor 123d for outputting a current. When the varistor 121 is damaged and becomes a short circuit, the fuse 122 is disconnected and light is no longer emitted from the light emitting diode 123b. Thus, when the light is not emitted from the light emitting diode 123b, the varistor It is easy to grasp that there is damage to the 121. In addition, the amount of light emitted from the light emitting diode 123b is changed until the varistor 121 is damaged but the fuse 122 is completely disconnected. The amount of light that the phototransistor 123d changes is changed. Since the current is changed according to the output, the signal (change current) output from the phototransistor 123d can be checked through the performance monitoring device 5 to check the performance degradation state of the varistor 121.

Hereinafter, the principle of removing the overvoltage from the overvoltage protection circuit including the above configuration will be described. The overvoltage protection circuit is designed to satisfy the following electrical conditions.

V _AR ∠ V _L1 + V _VA ............. (1)

V _VA ∠ V _L2 + V _Load ......... (2)

(V _AR is the discharge start voltage of the arrester 11, V _L1 is the voltage _dropped by the first inductor L ₁ , V _VA is the discharge start voltage of the varistor 121, and V _L2 is the second The voltage dropped by the inductor L ₂ , and V _Load means the voltage _dropped in the protection filter circuit.)

When overvoltage is applied to the input side L of the power line PWL, the overvoltage protection circuit 1 satisfies the electrical conditions as shown in Equation (1). The overvoltage protection circuit 1 may be configured as a circuit having a large current resistance and a fast response speed since the varistor 121 having a fast response speed removes a fast overvoltage that the arrester 11 does not remove. It has a feature that can maintain its function for a long time without damage and deterioration. The overvoltage protection circuit 1 is an EMP medium pulse (1.5 / 3000us), the instantaneous value is 100 kA or more, the response speed is 20 ns or less, and the mean failure interval (MTBF) is 1 million or more.

When the overvoltage protection device of the EMP protection filter according to another embodiment of the present invention will be described with reference to FIGS. 3 to 5, the overvoltage protection device 3 includes the overvoltage protection circuit 1. The overvoltage protection device 3 will be described based on the coupling relationship between the components constituting the overvoltage protection circuit 1. The overvoltage protection device 3 includes a housing 31 forming an external shape, and includes first and second inductors (or ferrite beads L ₁ and L ₂ ) and an arrester constituting the over voltage protection circuit 1. 11 is installed inside the housing 31, and the second overvoltage protection unit 12 is modularized and detached to the outer surface of the housing 31 in a plug-in manner.

Looking at the coupling relationship between the housing 31 and the modular second overvoltage protection unit 32 in detail, the housing 31 includes the recess 311 into which the modular second overvoltage protection unit 32 to be described later is inserted; It is formed through the lower surface of the recess 311 and includes an insertion groove 312 is inserted into the insertion pin 322 to be described later. The modularized first overvoltage protection unit 32 includes a case 321 forming an outer shape, and a varistor 121 and a fuse constituting the first overvoltage protection unit 12 inside the case 321. 122 and the like, and an insertion pin 322 electrically connected to the first overvoltage protection part 12 installed inside the case 321 protrudes from one surface of the case 321. When the modularized first overvoltage protection unit 32 is inserted into the recess 311 and the insertion pin 322 is inserted into the insertion groove 312, the first overvoltage protection unit 12 is a power line (PWL) and ground line (GND).

The overvoltage protection device (3) is characterized in that the first overvoltage protection module can be coupled to the device detachably without opening the case of the device, so that the overvoltage protection device can be safely replaced in a short time (about 10 seconds). .

Referring to Figures 2 to 6 the performance monitoring device of the EMP protection facility according to an embodiment of the present invention for monitoring the performance of the protective facility described above, the performance monitoring device 5 is an antenna 51, an amplifier 52, a sensor 53, a receiver 54, a spectrum analyzer 55, a controller 56, and the like.

The antenna 51 is installed inside the protection chamber 100 that spatially protects the taps and EMPs caused by electromagnetic waves, and receives the airwaves of the protection chamber 100. The signal is output to an amplifier to be described later. The amplifier 52 receives and amplifies the signal output from the antenna 51 and outputs the amplified signal to the spectrum analyzer 55 to be described later.

The sensor 53 is connected to a power supply terminal connected to a protection filter 1 that electrically protects wire tapping and EMP by electromagnetic waves, and flows into the protection chamber 100 through the protection filter 1. It receives signals such as power frequency, harmonics, and broadcast waves and outputs them to a spectrum analyzer to be described later.

The receiver 54 is connected to an overvoltage protection device that prevents overvoltage from occurring in the protection filter 1, is output from the performance display unit 123 of the overvoltage protection device, and the performance of the overvoltage protection device (varistor) is improved. A signal (change current) that changes as it decreases is received and output to the spectrum analyzer 54.

The spectrum analyzer 55 receives signals output from the amplifier 52, the sensor 53, and the receiver 54, and analyzes the signals to display signal strengths on a frequency axis or a time axis. 6 shows an example screen output through the spectrum analyzer, where the X axis represents frequency and the Y axis represents signal strength.

The control device 56 receives an analysis signal output through the spectrum analyzer 55 and when there is a change in comparison with a previously set signal, the protection performance of the protection room, the protection filter, the overvoltage protection device is deteriorated. Determined to be. That is, when the signal strength on the frequency axis and / or time axis output through the spectrum analyzer 55 is different from when the performance of the protection room, the protection filter, and the overvoltage protection device is maintained, that is, the protection is performed. It is determined that performance is degraded. In the case of real time, it is possible to check whether the performance is maintained by reading the change of the value on the frequency axis, and in the long term, it is possible to check whether the performance is maintained by reading the change of the accumulated value on the frequency axis.

The difference is obtained by comparing the signal output through the antenna 51, the amplifier 52, and the spectrum analyzer 55 with a predetermined signal (the signal output through the antenna, amplifier, and spectrum analyzer when the protection room performance is maintained). If it is determined that the performance of the protection room is deteriorated, and the signal output through the sensor 53, the spectrum analyzer 55 and a predetermined signal (when the performance of the protection filter is maintained, the sensor, spectrum analyzer If there is a difference compared to the signal outputted through, it is determined that the performance of the protection filter is reduced, and the signal output through the receiver 54, the spectrum analyzer 55 and the predetermined signal (performance of the overvoltage protection device) When this is maintained, the signal output through the receiver and the spectrum analyzer) is compared, and when there is a difference, it is determined that the performance of the overvoltage protection device is deteriorated.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

1: overvoltage protection circuit 2: protection filter circuit 3: overvoltage protection device
5: performance monitoring device 51: antenna 52: amplifier
53: sensor 54: receiver 55: spectrum analyzer
11: first overvoltage protector (arrester) 12: second overvoltage protector
31 housing 32: modular second overvoltage protection
121: varistor 122: fuse 123: performance display
123a: rectification diode 123b: light emitting diode 123c: resistance
123d: phototransistor 311: recess 312: insertion groove
321: case 322: insertion pin

Claims (3)

In the performance monitoring device for monitoring the performance of the protection facility to protect the wiretapping and EMP by electromagnetic waves,
The performance monitoring device includes: an antenna for receiving airwaves inside a protection room that spatially protects the taps and EMPs caused by electromagnetic waves; A spectrum analyzer indicating a signal strength on a frequency axis or a time axis by analyzing the signal received by the antenna; and checking whether the performance of the protection room is spatially maintained by changing the signal strength.
The performance monitoring device further includes a sensor connected to a power supply terminal connected to a protection filter for electrically intercepting the EMP and the EMP, and receiving the signal passing through the protection filter and outputting the signal to the spectrum analyzer. Spectrum analyzer analyzes the signal output from the sensor to indicate the signal strength on the frequency axis or time axis, it is possible to determine whether the performance of the protective filter through the change in the signal strength is conductively maintained EMP Performance monitoring device in protective facilities. delete According to claim 1, The performance monitoring device of the EMP protection facility
And a receiving unit connected to an overvoltage protection device that prevents overvoltage from occurring in the protection filter, and receiving a signal that changes as the performance of the overvoltage protection device decreases and outputs the signal to the spectrum analyzer.
The spectrum analyzer analyzes the signal output from the receiver to indicate the signal strength on the frequency axis or the time axis, so that the performance of the overvoltage protection device can be confirmed by changing the signal strength. Facility performance monitoring device.

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