KR102571758B1 - Surge Response Based Voltage Resistant CCTV Video Detection System - Google Patents

Abstract

The surge response-based CCTV image detection system according to the present invention includes a camera generating a CCTV image by receiving power from a power supply unit; First and second surge protection wires that are inserted between the first and second conductors receiving AC voltage from the power supply unit and between the first and second conductors and a grounding line for grounding, and connect the first and second conductors A fuse unit inserted into each of the fuse units to block the short-circuit current, and at least one of the first, second, and third surge protection wires being inserted into the first and second surge protection wires and the third surge protection wires to suppress the movement of the surge voltage. A varistor unit for limiting the surge voltage moving along one to 4 to 6 kV, and inserted into a fourth surge protection wire extending from at least one of the first and second surge protection wires and connected to the ground line to provide the fourth surge protection a surge protection interface including an arrestor unit for discharging a surge voltage moving along a wire to the ground wire; and a controller including an operation detection module for determining whether the surge protection interface is normally operating.

Description

Surge Response Based Voltage Resistant CCTV Video Detection System {Surge Response Based Voltage Resistant CCTV Video Detection System}

The present invention relates to a surge response-based voltage withstand CCTV image detection system, and more particularly, to a surge response-based voltage withstand CCTV image detection system capable of protecting a video device from a surge flowing into a CCTV circuit.

In general, the fluctuations in current, voltage, and power caused by external factors in electric circuits are called surges. Since all circuits are configured to perform their functions only at rated voltage, surges that exceed the allowable range of the specified rating When voltage flows into electrical and electronic devices through transmission lines, it causes serious problems such as damage to electronic components, fatal damage to electrical and electronic equipment, and program malfunction.

Therefore, in most electric devices implemented as electric circuits, surge protectors and surge suppressors designed as circuits using various protection elements to protect surges from transient phenomena such as lightning, switching of power systems, and switching of inductive loads. etc. are required.

In addition, the importance of security and safety is gradually being emphasized, and there is a trend that video equipment is being applied to many places for the prevention of accidents and post-verification. The imaging device system receives an image signal through a camera, controls the position of the camera and the perspective of an image with a control signal, and receives power through a power line. Although these video equipment systems are sometimes placed indoors, in many cases they are installed outdoors, and at this time, they suffer a lot of damage due to surges caused by lightning.

Therefore, the importance of a device for properly protecting the video equipment system from such a surge is being added.

As a prior art for this, Korean Patent Registration No. 10-0541571 discloses a 'surge protection device for video equipment'.

A surge protection device for a video device according to the prior art includes: a) a video device that captures motion of a subject and inputs a video signal through a video signal line; b) a video device control unit that controls the position and distance of the video device by applying a control signal through a control line and receives the video signal; c) a control monitoring unit that supplies power to the video device control unit and the video device through a power line, and remotely monitors and controls the video device through the video device control unit; and d) a surge protection unit that simultaneously protects all surges flowing into video signal lines, control signal lines, and power lines between the video device, the video device control unit, and the control monitoring unit.

The surge protection device for video devices according to the prior art uses a complex surge prevention circuit such as a varistor, a bridge diode, an avalanche diode or a fuse, so that all surges flowing into video signal lines, control signal lines, and power lines are protected from video devices. can be safely protected.

However, in the case of the prior art, in the surge voltage movement method through the varistor, there is a limit in that the limiting effect of the surge voltage through the varistor cannot be confirmed because the limit width of the surge voltage is not specified.

Therefore, in order to solve the problem as described above, by inserting a surge protection means that can appropriately lower the large surge voltage value into the circuit diagram, it is possible to improve the surge protection compared to the conventional circuit diagram and significantly improve the efficiency. There is a need to develop a novel and advanced surge response-based voltage withstand CCTV image detection system capable of detailed control of the adjustment width of the voltage value.

Korean Registered Patent No. 10-0541571

The main object of the present invention is to provide a CCTV image detection system with increased surge voltage suppression effect.

Another object of the present invention is to detect a voltage change and control driving of a camera when an abnormal voltage pattern occurs.

In order to achieve the above object, a surge response-based CCTV image detection system according to the present invention includes a camera for receiving power from a power supply unit and generating a CCTV image; First and second surge protection wires that are inserted between the first and second conductors receiving AC voltage from the power supply unit and between the first and second conductors and a grounding line for grounding, and connect the first and second conductors A fuse unit inserted into each of the fuse units to block the short-circuit current, and at least one of the first, second, and third surge protection wires being inserted into the first and second surge protection wires and the third surge protection wires to suppress the movement of the surge voltage. A varistor unit for limiting the surge voltage moving along one to 4 to 6 kV, and inserted into a fourth surge protection wire extending from at least one of the first and second surge protection wires and connected to the ground line to provide the fourth surge protection a surge protection interface including an arrestor unit for discharging a surge voltage moving along a wire to the ground wire; and a controller including an operation detection module for determining whether the surge protection interface is normally operating.

Furthermore, the controller may include a peak detection unit that graphs a voltage change with respect to time of the camera driven in the past and detects a peak in the graph, and an interval between the peak and an adjacent peak based on the peak is repeated. An abnormal section identifying unit identifying the peak and the repeating section as an abnormal section; It is characterized in that it includes a pattern learning module including a bad pattern identification unit that recognizes an abnormal section as a bad pattern, and a driving control module that controls driving of the camera according to occurrence of the bad pattern.

In addition, the system includes a cover provided on one side of an upper portion of the camera, wherein a protective enhancer including a flame retardant material is coated on the surface of the cover.

According to the surge response-based voltage withstand CCTV image detection system of the present invention,

1) While suppressing the surge voltage, it is possible to discharge it after limiting it to below the standard value to increase the efficiency of suppressing the surge voltage, and at the same time to monitor the normal operation of the surge protection interface through the controller, the surge voltage of the surge protection interface The deterrent effect is monitored and ensured that it is used reliably.

2) After observing the voltage change over time, observe whether the abnormal section including the peak occurs repeatedly, designate it as a bad pattern, and control the camera drive according to the occurrence of the bad pattern. It can prevent device or camera failure and enable stable camera operation,

3) Not only can the camera be wrapped and protected through the cover, but it is connected to the ground wire so that the surge voltage can be discharged to the outside, but the protection enhancer is coated to protect the camera from fire when it comes in direct contact with lightning. can do.

1 is a conceptual diagram of a camera of the present invention.
2 is a circuit diagram of a surge protection interface of the present invention;
Figure 3 is a block diagram showing the configuration of the controller of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numbers in each drawing indicate like elements.

1 is a conceptual diagram of a CCTV of the present invention.

Referring to FIG. 1, the surge response-based CCTV video detection system of the present invention can limit the surge voltage to a standard value or less through a surge protection interface, thereby protecting video devices, that is, CCTVs, from all transient surges. It relates to a voltage withstandable CTV image detection system.

Here, the camera 10 included in the CCTV system performs a function of generating CCTV images, and includes a switching mode power supply that receives AC voltage from the power supply unit and converts it into DC voltage required for driving the CCTV. to be

In addition, in a CCTV including such a switching mode power supply, if lightning, lightning, switching, charging or discharging occurs while AC voltage (or input power) is applied, a large surge voltage is generated in the conductor or device or element. will do

The surge voltage is a voltage higher than the AC voltage normally supplied to conductors or devices or elements, and refers to a voltage that increases rapidly, causes severe waveform changes in a short time, and has the characteristics of gradually decreasing. This surge voltage exceeds the voltage limit value of the conductor or device or element, or causes damage to the conductor or device or element due to the resulting spike voltage, etc., so the surge voltage value must be appropriately lowered.

Therefore, it is possible to prevent damage to CCTV equipment by lowering the surge voltage value through the surge protection interface. Here, the surge protection interface is another name for a surge protection circuit, which will be described later, such as a fuse unit, a varistor unit, and an arrestor. Since it is a collection of negatives, it will be collectively referred to as a surge voltage interface.

Therefore, through these surge voltage interface, a large surge voltage?? The purpose is to significantly improve efficiency by improving surge protection compared to circuit diagrams included in conventional CCTVs by properly lowering the value.

Furthermore, it is a matter of course that the normal operation of the surge protection interface can be determined through the controller 20 . The controller 20 means hardware having a CPU and a storage means in a state of having a communication unit and transmission means for transmitting communication and information, and a series of modules to be described later by software to be executed in the CPU and Specific functions can be derived.

A program that can be executed in the central processing unit (CPU) and storage means such as memory and hard disk is installed on the hardware basis, that is, software is installed to execute this software. A series of specific configurations for this software will be described later as 'modules', 'parts', and 'interfaces' as constituent units.

At this time, the controller 20 temporarily and / or permanently stores the signals (or data) processed therein (RAM: Random Access Memory, not shown) and ROM (ROM: Read-Only Memory, not shown) ), may include a processor.

In addition, the controller 20 may be implemented in the form of a system on chip (SoC) including at least one of a graphics processing unit, RAM, and ROM.

The processor may include one or more cores (not shown) and a graphic processor (not shown) and/or a connection path (eg, a bus) for transmitting and receiving signals to and from other components.

The memory may store programs (one or more instructions) for executing and controlling modules or parts to be described later. Programs stored in the memory may be divided into a plurality of modules according to functions.

Steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, implemented in a software module executed by hardware, or implemented by a combination thereof. A software module may include random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any form of computer readable recording medium well known in the art to which the present invention pertains.

That is, the components of the present invention may be implemented as a program (or application) to be executed in combination with a computer, which is hardware, and stored in a medium. Components of the present invention may be implemented as software programming or software elements, and similarly, embodiments may include various algorithms implemented as data structures, processes, routines, or combinations of other programming constructs, such as C, C++ , Java (Java), can be implemented in a programming or scripting language such as assembler (assembler). Functional aspects may be implemented in an algorithm running on one or more processors.

The configuration of such a 'module' or 'unit' or 'interface' refers to a configuration of hardware such as software or FPGA or ASIC executed via CPU and memory in a state installed and stored in the storage means of the controller 20. . At this time, the configuration of 'module' or 'unit' or 'interface' is not limited to hardware, and may be configured to be in an addressable storage medium or configured to reproduce one or more processors. As an example, 'module' or 'part' or 'interface' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, and properties. , procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables.

Functions provided by these 'modules' or 'units' or 'interfaces' may be combined into a smaller number of components and 'units' or 'modules', or may be combined into additional components and 'units' or 'modules'. can be further separated.

Hereinafter, detailed configurations and functions thereof will be described based on such a macroscopic configuration.

2 is a circuit diagram of a surge protection interface of the present invention.

Referring to FIG. 2, the surge protection interface is inserted between the first and second conductors 1 and 2 connected to the power supply unit and between the ground wire 3 for grounding, respectively, so that the first and second conductors 1 ,2) and the ground line (3) from surge voltage.

Here, the first conducting wire 1 is a live conducting wire, the second conducting wire 2 is a neutral conducting wire, and the ground wire 3 means a line connected for grounding to discharge surge voltage to the outside.

In addition, as the first conductor 1, the second conductor 2, the first surge protection conductor 101 and the second surge protection conductor 102 are connected in parallel, the AC voltage of the power supply unit can be moved.

The surge protection interface is configured to include a fuse unit 110 , a varistor unit 120 and an arrestor unit 130 .

The fuse unit 110 is inserted into the first conducting wire 1 and the first and second surge protection wires 101 and 102 connecting the first conducting wire 1 and the second conducting wire 2 to block short circuit current, A first fuse 111, a second fuse 112, and a third fuse 113 are provided to block the short-circuit current of the conductor.

The first fuse 111 is inserted into the first conductor 1 to move the short-circuit current of the first conductor 1 or a filter (not shown) that can be separately inserted at the rear end of the surge protection interface 100. block

The second fuse 112 is inserted into the first surge protection wire 101 to block the short-circuit current of at least one of the first and second surge protection wires 101 and 102, the varistor unit 120 and the arrestor unit 130. .

The third fuse 113 is inserted into the second surge protection wire 102 to block the short-circuit current of at least one of the first and second surge protection wires 101 and 102, the varistor unit 120 and the arrestor unit 130. .

Furthermore, the number of the first, second, and third fuses 111, 112, and 113 is not limited to one, and a larger number than that can be inserted into the first conducting wire 1 and the first and second surge protection wires 101 and 102, respectively. Also, a fuse may be additionally inserted into the second lead wire 2 not provided with a fuse.

The varistor unit 120 is inserted into the first, second, and third surge protection wires 101, 102, and 103, respectively, and suppresses the movement of the surge voltage while moving along at least one of the first, second, and third surge protection wires 101, 102, and 103. is limited to 4 to 6 kV or less, and for this purpose, the first varistor 121, the second varistor 122, and the third varistor 123 are provided. Here, the surge voltage means a voltage higher than the AC voltage value of the power supply unit.

The first varistor 121 is inserted into the first surge protection wire 101, passes through the second fuse 112 or the third fuse 113, and measures the surge voltage moving along the first surge protection wire 101. inhibit movement.

The first varistor 121 may be provided as a resistor or inductor, which is a blocking element for suppressing the movement of a surge voltage. However, the first varistor 121 may be provided with other means for suppressing the movement of the surge voltage instead of a resistor or an inductor.

The second varistor 122 is inserted into the second surge protection wire 102, passes through the second fuse 112 or the third fuse 113, and measures the surge voltage moving along the second surge protection wire 102. inhibit movement.

The second varistor 122 may be provided as a resistor or inductor, which is a blocking element for suppressing the movement of the surge voltage. However, the second varistor 122 may be provided with other means for suppressing the movement of the surge voltage instead of a resistor or an inductor.

The first varistor 121 and the second varistor 122 may have the same or different blocking elements. As a specific example, when the first varistor 121 is provided as a resistor, the second varistor 122 may be provided as the same resistor or as an inductor unlike the first varistor 121 .

In addition, at least one varistor of the first varistor 121 and the second varistor 122 is a metal oxide varistor or avalanche diode that is a clamping element by replacing the blocking element. can be provided with Through this, the varistor, which is a blocking element, can limit the moving surge voltage below the reference value.

The third varistor 123 is inserted into the third surge protection wire 103, and the surge voltage that moves along the third surge protection wire 103 after passing through the first varistor 121 or the second varistor 122 is limited to less than the standard value.

The third varistor 123 may be provided as a zinc oxide varistor or an avalanche diode, which is a cut-off type element for limiting the surge voltage below a reference value. However, instead of the zinc oxide varistor or the avalanche diode, the third varistor 123 may be provided with other means for limiting the surge voltage below the reference value.

The varistor unit 120 including the first, second, and third varistors 121, 122, and 123 may omit blocking devices and include all blocking devices according to a circuit of a switching mode power supply. This is because the process of limiting the surge voltage below the reference value is essential for protecting the circuit of the camera 10 from the surge voltage.

In addition, the number of the first, second, and third varistors 121, 122, and 123 is not limited to one, so that a greater number than that can be inserted into the first, second, and third surge protection wires 101, 102, and 103, respectively, and the varistor is not provided. A varistor may be additionally inserted into the fourth surge protection wire 104 .

The arrestor unit 130 extends from the first surge protection wire 101 or the second surge protection wire 102 and is inserted into the fourth surge protection wire 104 connected to the ground wire 3 so that the fourth surge protection wire The surge voltage moving along (104) is discharged to the ground line (3).

The arrestor unit 130 is a diverting element for limiting the surge voltage of the camera 10 to a reference value or less by discharging the surge voltage generated in the fourth surge protection wire 104 to the ground wire 3. Means such as a gas tube arrester may be provided.

In addition, the arrestor unit 130 preferably discharges the surge voltage to the ground line 3 that can be connected to one side of the cover 11 of the camera 10 so that the surge voltage is transmitted to the cover 11, thereby switching The mode power supply can be basically protected from surge voltage through the cover 11-based grounding.

3 is a block diagram showing the configuration of the controller of the present invention.

Referring to FIG. 3 , the controller 20 of the present invention includes the operation detection module 200 and can determine whether the surge protection interface is normally operating. The operation detection module 200 checks whether detailed elements included in the fuse unit, varistor unit, and arrestor unit are normally operating and normally connected in a state in which they are electrically connected to the fuse unit, varistor unit, and arrestor unit included in the surge protection interface. performs the function of recognizing

Therefore, at the same time as identifying the connection failure of a specific element, it is also determined whether or not the surge voltage is limited to the standard value, that is, in the range of 4 to 6 kV, by the varistor unit according to the above configuration, and if it is out of the standard value, this is also identified as an abnormal operation. It is possible.

Therefore, according to such a surge response-based withstand voltage CCTV image detection system, the surge voltage is suppressed while limiting it to a standard value and then discharged to increase the efficiency of suppressing the surge voltage, and at the same time, the controller 20 mediates the surge protection interface By enabling to monitor whether or not the normal operation of the surge protection interface, it has the effect of monitoring the suppression effect of the surge voltage of the surge protection interface and enabling stable use.

Furthermore, in observing the surge voltage suppression effect, the controller 20 of the present invention graphs the voltage change over time, identifies the voltage abnormal section based on this, and controls the driving of the camera 10 based on this. It is possible, for this purpose, the controller 20 of the present invention may further include a pattern learning module 300 and a driving control module.

First, the pattern learning module 300 analyzes the voltage change over time of the camera 10 driven in the past, and identifies a part that specifically changes (for example, when the voltage value at the time of observation is suddenly large or small) as a singularity. After designating it as a bad pattern, it performs the function of identifying it as a bad pattern. In more detail, the pattern learning module 300 includes a peak detection unit 310, a repetition section identification unit 320, an abnormal section identification unit 330, an abnormal repetition identification unit 340, and a bad pattern identification unit 350. do.

The peak detector 310 performs a function of time-sequentially plotting a voltage change with respect to time of the camera 10 driven in the past as a graph and detecting a peak in the graph. Here, the voltage change over time can be preferably shown in the form of a line graph, and thus the voltage change over time of the camera 10 driven in the past can be grasped in a time-series manner. In addition, peaks on the graph identified time-sequentially can serve as a reference point when determining a defective section to be described later. In this case, the peak may be referred to as a singular point in the above-described pattern analysis unit, that is, a specifically changing portion (for example, when a voltage value at an observation time point is suddenly large or small).

The repetition section identification unit 320 identifies the interval between adjacent peaks as a repetition interval based on the peak detected by the peak detection unit 310 described above, which identifies repetitive wavelet waveforms on the left and right based on one peak. , it provides a function to designate it as a repetition section.

The abnormal section identification unit 330 recognizes the above-described peak and repetition sections as defective sections, and recognizes abnormal sections including peaks and repeat sections, which are singular points identified in the voltage change generated while the camera 10 is driven, as defective patterns. prepare for comprehension.

The abnormal repetition detection unit 340 determines whether an abnormal section repeatedly occurs at regular time intervals, and provides a function of determining whether an abnormal section occurs every 1 second or 100 ms, for example.

The bad pattern identification unit 350 sets a repetitive abnormal section as a bad pattern, which sets a voltage range corresponding to the overlapping abnormal section as a bad pattern. That is, the identified defect pattern means that a voltage range including a peak repeatedly appears, which means that an abnormal voltage distribution repeatedly appears, that is, abnormal driving of the camera 10 is observed.

Therefore, when abnormal driving is observed through identifying the defective pattern, the drive control module performs a function of controlling the driving of the camera 10 according to the occurrence of the defective pattern. Driving of the camera 10 may be controlled by temporarily stopping driving and resetting (rebooting) the camera 10 .

Alternatively, when a bad pattern occurs, the image taken so far is saved, the shooting is stopped, and the shooting is started again, minimizing the data load and controlling the driving of the camera 10 so that the shooting is performed again, including the bad pattern, that is, the peak. It is possible to prevent the repetition of the voltage abnormal section.

According to this configuration, after observing the voltage change with respect to time, observing whether an abnormal section including a peak occurs repeatedly, designating this as a bad pattern and controlling the driving of the camera 10 according to the occurrence of the bad pattern By doing so, it is possible to prevent a failure of some devices or the camera 10 due to the occurrence of a voltage peak and to enable stable driving of the camera 10 .

Furthermore, the pattern learning module 300 further includes a pattern correction unit 360 to reduce errors that may occur in driving control of the camera 10 by identifying and removing noise that may be included in the identified defective pattern. can do.

The pattern correction unit 360 generates a correction pattern by removing noise from the defect pattern after recognizing the noise of the defect pattern. By removing the noise, the correction pattern is generated to increase the accuracy of detecting the defect voltage pattern, that is, detecting abnormal driving. can

Here, noise refers to a value that is out of the general case because it can be understood that a value exceeding the range that can be controlled through surge voltage, that is, the standard value of 4 to 6 kV, is caused by a failure of the surge voltage interface. can Since these values are not helpful in identifying patterns, they are detected as noise and removed, so that voltage peaks caused by abnormal cases such as lightning strikes can be removed from bad patterns.

Through this, a peak within a voltage change that can generally occur is detected, a correction pattern is identified based on this, and the driving control module controls driving of the camera 10 according to the occurrence of the correction pattern, thereby detecting a defective voltage pattern. It is possible to increase the accuracy of detection, that is, detection of abnormal driving, and to generate a more precise correction pattern.

In addition, the pattern correction unit 360 includes a value calculation part 361 and a correction pattern generation part 362 in detail to identify noise and remove it from a bad pattern to generate a correction pattern.

The value calculation part 361 calculates a reference value, which can be referred to as a reference value that defines the range of noise. At this time, the reference value calculation method is not limited, but preferably calculates the reference value based on Equation 1 below can do.

Equation 1.

(Where RV is the reference value, P is the value of any one of the peaks included in the graph)

Equation 1 is an equation for calculating a reference value according to the peak value detected by the peak detector 310 described above. In this case, the reference value means a criterion for determining whether the peak is noise, and is a value greater than the reference value. A peak with , can be defined as noise.

In addition, P denotes any one of a plurality of peaks recognized by the peak detector 310, and in this case, selecting one of the plurality of peaks may be arbitrarily set by the system administrator of the present invention, and the method includes Of course, there is no limitation, but preferably, the value of the peak may be designated as a value that does not exceed 6 kV, which is the upper value of the limiting value of the surge voltage.

For example, when P is 5 kV, the reference value calculated by Equation 1 is as follows.

That is, the reference value calculated through Equation 1 is 4.9, and among the peak values recognized by the peak detector 310, a peak having a value larger than the reference value of 4.9 may be recognized as noise. A configuration for determining noise from peaks will be described as follows.

The correction pattern generating part 362 identifies the presence or absence of noise in the defective pattern based on the reference value calculated by the value calculation part 361 and generates a correction pattern from which the noise is removed. The pattern is identified as noise, removed, and a correction pattern in which the noise is removed from the bad pattern is generated.

Therefore, by enabling the driving of the camera 10 to be controlled based on such a correction pattern, the occurrence of a peak caused by an unusual event such as lightning is removed as noise, and a bad pattern based on a peak that may occur daily It is possible to stably drive the camera 10 by generating and controlling driving of the camera 10 .

Furthermore, referring again to FIG. 1 described above, the system of the present invention may further include a cover 11 provided on one side of an upper portion of the camera 10, and this cover 11 may be connected to the ground line described above. Therefore, it is based on being able to perform a function of discharging surge voltage to the outside as well as a function of protecting the camera 10.

Since the shape of the cover 11 is not particularly limited, as long as it can cover the outside of the camera 10, it is based on not placing any restrictions on the shape.

Furthermore, in the case of this cover 11, since it is said that it can perform the function of discharging surge voltage to the outside by being connected to the ground wire, its insulation can be said to be important. A sex enhancer may be coated.

Here, there is no limitation on the flame retardant material constituting the protective enhancer, but it is possible to add flame retardancy by preferably including at least one of antimony trioxide and titania powder.

According to this cover 11, not only can the camera 10 be wrapped and protected, but it is connected to the ground wire so that the surge voltage can be discharged to the outside. (10) can be safely protected from fire, etc.
As described so far, the configuration and operation of the surge response-based withstand voltage CCTV image detection system according to the present invention are expressed in the above description and drawings, but this is only an example and the spirit of the present invention is reflected in the above description and drawings. It is not limited, and various changes and modifications are possible within a range that does not deviate from the technical spirit of the present invention.

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1: first conductor 2: second conductor
3: ground wire 10: camera
11: cover 20: controller
100: surge protection interface 101: first surge protection lead;
102: 2nd surge protection wire 103: 3rd surge protection wire,
104: 4th surge protection wire 110: fuse unit
111: first fuse 112: second fuse
113: third fuse 120: varistor unit
121: first varistor 122: second varistor
123: third varistor 130: arrester unit
200: motion identification module 300: pattern learning module
310: peak detection unit 320: repetition section identification unit
330: abnormal section grasping unit 340: abnormal repeated grasping unit
350: defective pattern identification unit 360: pattern correction unit
361: value calculation part 362: correction pattern generation part
400: drive control module

Claims (9)

As a surge response-based voltage withstand CCTV image detection system,
A camera generating a CCTV image by receiving power from the power supply unit;
Inserted between the first and second conductors receiving AC voltage from the power supply unit and between the first and second conductors and a ground wire for grounding,
A fuse unit inserted into the first and second surge protection wires connecting the first and second wires to block short-circuit current, and a fuse unit inserted into the first and second surge protection wires and the third surge protection wire to measure the surge voltage A varistor unit limiting a surge voltage moving along at least one of the first, second, and third surge protection wires to 4 to 6 kV while suppressing movement, and the ground wire extending from at least one of the first and second surge protection wires a surge protection interface including an arrestor unit inserted into a fourth surge protection wire connected to and discharging a surge voltage moving along the fourth surge protection wire to the ground line; and,
A controller including an operation identification module for determining whether the surge protection interface is normally operating;
The controller,
A peak detection unit that graphs the change in voltage over time of the camera driven in the past and detects a peak in the graph, and identifies a repetition interval that identifies an interval between the peak and an adjacent peak as a repeat interval based on the peak. an abnormal section detecting unit that designates the peak and the repeating section as an abnormal section; an abnormal section identifying unit that determines whether the abnormal section repeatedly occurs at regular time intervals; and the repeated abnormal section is classified as a bad pattern. a pattern learning module including a defective pattern identifying unit that identifies noise in the defective pattern and a pattern correcting unit that generates a correction pattern by removing noise from the defective pattern;
A driving control module controlling driving of the camera according to the generation of the correction pattern;
The pattern correction unit,
A value calculation part that calculates a reference value defining a range of noise based on Equation 1 below, and based on the reference value, determining whether or not there is noise in the defective pattern and generating a correction pattern from which the noise is removed A voltage-resistant CCTV image detection system comprising a correction pattern generating part to do.
Equation 1.
(Where RV is the reference value, P is the value of any one of the peaks included in the graph) According to claim 1,
The system,
A voltage-resistant CCTV image detection system comprising a; cover provided on one side of an upper portion of the camera. According to claim 2,
On the surface of the cover,
A voltage-resistant CCTV image detection system, characterized in that a protective enhancer containing a flame retardant material is coated. According to claim 3,
The flame retardant material,
A voltage-resistant CCTV image detection system, characterized in that it contains at least one of antimony trioxide and titania powder. delete delete delete delete delete