KR102462890B1 - Dome type CCTV camera with shooting field of view - Google Patents

Abstract

The present invention relates to a dome-type CCTV camera having a shooting field of view security function. In a dome-type CCTV camera suspended at a high location, a camera unit for rotating photography operates within a hemispherical cover. Externally, as the rotation of a driving motor installed inside, a blowing fan and an exhaust fan are operated simultaneously to remove dust on the hemispherical surface and to prevent elements that interfere with shooting by attaching dust, insects, and spider webs. Thus, it is possible to record high-quality images. By detecting the temperature of the heat generated due to the operating characteristics of the camera unit that operates while being protected within a hemispherical cover and operating the driving motor to help heat dissipation efficiency, it is also possible to solve condensation and moisture that may occur inside the hemispherical cover due to temperature difference. Thus, the present invention has an effect of significantly extending the service life of the camera unit.

Description

Dome type CCTV camera with shooting field of view

The present invention relates to a dome-type CCTV camera, and more particularly, by improving a dome-type CCTV camera installed to be suspended at a high place for traffic and crime prevention, driving a single driving motor without interfering with photographing when rotating the camera unit It operates the blower fan and heat dissipation fan with the forced air flow to prevent dust, insects, and rainwater from getting on the surface of the hemispherical cover that protects the camera unit, so that clear picture quality recording and control monitoring can be achieved, and at the same time, It relates to a dome-type CCTV camera having a shooting field of view that can greatly extend the service life of the camera unit by dissipating heat generated from the infrared LED installed in the camera unit to the outside.

In general, CCTV cameras are used for unmanned monitoring of various security facilities, for anti-theft monitoring in banks or department stores, for line inspection or defect inspection in factories, and for unattended speeding monitoring on general roads and highways or to check traffic conditions. It has been widely used for safety monitoring in airports, airport runways, subway station premises, safety inspection of other safety facilities, and medical fields.

In addition, the camera unit of CCTV cameras is divided into fixed type and operation type according to the purpose. is being done

Such CCTV cameras have various problems in addition to normal operation, depending on the place where they are installed intelligently as they develop gradually.

For example, when it is installed on a factory facility, on the side of a highway, or inside a subway station, a lot of dust accumulates on the camera, cobwebs are often formed around the camera, or rainwater is formed during rain due to adhesion of dust. Obstacles to video recording appear.

Most of the CCTV cameras that are suspended from a high position and operated are exposed to the camera module as it is, and the lens is also a type with a convex lens to minimize dust or rainwater adhesion problems, or a separate dome-shaped hemispherical cover is applied. It is designed to protect the CCTV camera unit from the outside.

However, even if there are two types as described above, it is unavoidable to fundamentally prevent filming obstructions such as stains and spider webs due to dust and rainwater adhering to the outer surface of the hemispherical cover.

Looking at the source technology related to the dome type CCTV camera in consideration of the above points, Korean Patent Registration No. 10-1704342 (Name: Surveillance Camera with Lens Cover Cleaning Device, Registration: February 01, 2017, hereinafter referred to as 'Patent Documents') ') is disclosed.

The patent document includes a base portion composed of a fixing member and a rotating member rotatably installed to the fixing member by 360°; a driving unit installed on the fixing member of the base unit to rotate the rotating member and driven by sensing the number or size of contaminants set; a camera unit provided with a foreign material detection sensor configured to the rotating member of the base unit and configured to detect the set number or size of contaminants; A hemispherical cover having a protrusion having a tapered surface formed on one side of the outer surface is coated with a UV blocking material and a water-repellent material, the outer surface is coated with a UV blocking material and a water-repellent material, and is screwed to the rotating member of the base to protect the camera unit; and a wiper that is in close contact with the hemispherical cover with the elasticity of an elastic member installed in a receiving groove formed on one side of the fixing member of the base to be placed in close contact with the outer surface of the hemispherical cover. It was cleaned to prevent deterioration of image quality.

That is, the wiper is fixed in close contact with the hemispherical cover from the base, while the hemispherical cover rotates 360 degrees by the driving unit so that dust and rainwater on the outer surface of the hemispherical cover can be wiped away by the wiper, which is the camera It has a disadvantage that it can be cleaned only when the unit is fixed.

In addition, since the hemispherical cover is rotated and cleaned only by the electrical signal that the foreign object is detected by the detection sensor, inefficient cleaning of the cover is made, so old dust deteriorates the picture quality, and it is practically impossible to clean the cover. do.

On the other hand, if the camera unit is rotating, it can be cleaned through the wiper while rotating with the hemispherical cover. There is a downside to that.

In the case of CCTV cameras, which usually monitor and shoot the surroundings while the camera unit rotates directly, infrared LEDs used in places where the brightness changes depending on external conditions are installed. There is also an example in which an infrared LED is operated, and an image obtained by shooting with better discrimination power is secured through the light generated from the infrared LED.

However, in the camera using the infrared illumination, the inside of the camera is damaged by the heat generated from the infrared LED. It can be said that internally generated heat dissipation is essential because this can be significantly reduced.

For example, heat generated from the infrared LED can be easily emitted to the outside to prevent damage to the camera unit, but in the case of a CCTV camera with an infrared LED protruding to the outside, that is, a hemispherical cover not applied, dust adhesion And there is a risk of malfunction due to water leakage.

Korean Patent Registration No. 10-2307033 (Registration September 24, 2021)

The present invention was invented to solve the problems of the related art as described above, and it improves the dome-type CCTV camera that is installed to be suspended at a high place for traffic and crime prevention without interfering with shooting when rotating the camera unit. By operating a blower fan and a heat dissipation fan by driving one driving motor, the hemispherical cover that protects the camera unit with a forced air jet prevents dust, insects, and rainwater from getting on the surface, so that clear picture quality recording and control monitoring can be achieved. At the same time, it is an object to provide a dome-type CCTV camera having a shooting field of view that can greatly extend the service life of the camera unit by emitting the heat generated from the infrared LED installed in the camera unit to the outside.

According to the present invention for achieving the above object, in a dome-type CCTV camera that is connected to a connecting rod that is vertically downward on the side of a suspension rod at a high position to perform real-time peripheral photography,

The CCTV camera has a cylindrical connecting portion connected to the connecting rod at the upper portion, an air inlet is provided on the outer periphery, and a connecting housing integrally formed with a cap portion for blocking rainwater at the lower periphery; A drive motor provided inside the connection housing, a blower fan and an exhaust fan coupled at intervals on the rotary shaft of the drive motor, a shaft support penetrating and supporting the rotation shaft of the drive motor in the center, and a lower end of the shaft support a fan driving unit coupled to a connecting support body to rotate and support the end of the rotating shaft and provided with a plurality of heat dissipating holes on one surface; an air guide unit interconnected with the shaft support of the connection housing and the fan driving unit, the air guide unit focusing and discharging the air generated by the fan driving unit; a cylindrical air dividing unit installed close to the shaft support in the connection housing to partition a space in which a blower fan is installed and an air intake space generated by the exhaust fan; a servo motor installed on the lower part of the connection support; a camera unit connected to the rotation shaft of the servo motor to be rotatably installed in a 360 degree forward and reverse direction, the camera unit having a temperature sensor thereon; a hemispherical cover having an open upper end and a hemispherical cylindrical shape at the lower end, the inside of which accommodates the camera unit, and the upper side of which is connected to the air guide unit; It is achieved by providing a dome-type CCTV camera having a function to secure a photographing field of view configured including;

The shaft support according to the present invention has a cylindrical shape, a male screw part is formed on the outer periphery of the lower part, a plurality of heat exhaust holes are formed on the inner diameter, and a diaphragm formed with a shaft part is integrally formed in the center, and the lower or upper part of the diaphragm It is characterized in that the filter is detachably provided on any one surface.

The air guide part according to the present invention has a cylindrical body in which a female thread is formed on the inner diameter for fastening the shaft support and the hemispherical cover in a cylindrical shape, and extending on the outer periphery of the cylindrical body, a coupling part having an air through hole formed in a circumferential shape; It is narrowed down from the lower part of the fastening part and is spaced apart from the outer diameter of the hemispherical cover, characterized in that it consists of a cone part for focusing and discharging air.

The cone part according to the present invention has flexibility, is in contact with the outer periphery of the hemispherical cover, it is characterized in that when the air is discharged, a valve that is opened by the force of the air is further provided.

A plurality of exhaust holes for heat dissipation are arranged on the outer periphery of the air dividing unit according to the present invention in a columnar shape.

The blowing fan according to the present invention is characterized in that it is further provided with auxiliary wings to assist heat dissipation.

The dome-type CCTV camera having a shooting field of view according to the present invention is a dome-type CCTV camera suspended at a high position, wherein the rotating camera unit operates within a hemispherical cover, but externally of the driving motor installed inside By rotating the fan and exhaust fan at the same time, it removes dust on the hemispherical surface and prevents the elements that interfere with shooting by attaching dust, insects, insects, spider webs, etc. It detects the temperature generated by the operating characteristics of the camera unit that is protected and operates within the camera unit and operates the drive motor to help heat dissipation efficiency. It provides the effect of significantly extending the lifespan.

1 is a front view showing a state in which a CCTV camera of the present invention is applied to a suspension rod;
A front view showing a CCTV camera according to the present invention of Figure 2,
Figure 3 is a cross-sectional view showing a CCTV camera according to the present invention,
4 is a longitudinal cross-sectional view showing a state in which the configuration of the CCTV camera according to the present invention is combined;
5 is a block diagram of a control concept of a CCTV camera according to the present invention;
6 is a longitudinal cross-sectional view showing an embodiment in which the valve body is further applied to the auxiliary wing and the air guide part to the blowing fan of the CCTV camera according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention, so at the time of the present application, they can be replaced It should be understood that various equivalents and modifications may exist.

The dome-type CCTV camera according to the present invention will be described with reference to the accompanying FIGS. 1 to 6 as follows.

In the dome-type CCTV camera 100, which is installed connected to the connecting rod (2) that is vertically downward on the suspension rod (1) side of the high-place position, and where real-time peripheral photography is made,

The CCTV camera 100, as shown in FIG. 3, has a connection housing 10, a fan driving unit 20, an air guide unit 30, an air division unit 40, and a servo motor 50. , a camera unit 60 , a hemispherical cover 70 , and a control unit 80 .

The connecting housing 10 has a cylindrical shape and a connecting portion 11 connected to the connecting rod 2 at the upper portion, an air inlet 12 is provided on the outer periphery, and a cap portion for blocking rainwater at the lower periphery ( 13) is integrally formed.

A separate mesh-type dust filter is attached to the inside of the air inlet 12 to prevent the inflow of large particles of dust, foreign substances, and insects from the outside.

The fan driving unit 20 includes a driving motor 21 provided inside the connection housing 10 , a blower fan 22 and an exhaust fan coupled to the rotation shaft 21a of the driving motor 21 at intervals. 23, and a shaft support 24 penetrating and supporting the rotation shaft 21a of the driving motor 21 in the center, and coupled to the lower end of the shaft support 24 to support rotation of the end of the rotation shaft 21a And it consists of a connection support body 25 provided with a plurality of heat dissipation holes (25a) on one surface.

As shown in the accompanying FIG. 6; as shown, the blowing fan 22 is further provided with auxiliary wings 22-1 to assist heat dissipation.

The shaft support 24 has a cylindrical shape, a male screw portion 24a is formed on the outer periphery of the lower portion, a plurality of heat exhaust holes 24b are formed on the inner diameter, and a shaft portion 24c is formed in the center of the diaphragm ( 24-1) is integrally formed, and the filter F is detachably provided on any one surface of the lower or upper part of the diaphragm 24-1.

The air guide unit 30 is interconnected with the shaft support 24 of the connection housing 10 and the fan driving unit 20, and collects the air generated by the fan driving unit 20 to form the hemispherical cover (70). It was designed to be discharged to the lower side of the outer surface.

Looking at the configuration of the air guide part 30 in detail, the cylindrical body 31 having a female screw part 31a for fastening the shaft support 24 and the hemispherical cover 70 in a cylindrical shape is formed in the inner diameter, and the cylindrical body ( 31) Doedoe extending on the outer periphery, the air through hole (32a) is formed in a circumferential fastening portion 32, and narrowed downward from the lower portion of the fastening portion 32 and spaced apart from the outer diameter of the hemispherical cover 70 to focus the air Consists of a cone part 33 for discharging.

As an example, as shown in FIG. 6, the cone part 33 has flexibility inside the cone part 33, is in contact with the outer periphery of the hemispherical cover 70, and is opened by the force of the air when the air is discharged. 34) is further provided. That is, the valve 34 is formed with a cross-sectional area as thin as possible toward the end that is in close contact with the hemispherical cover in a circumferential shape, which is easily opened by the force of air (wind) and is in close contact with the hemispherical cover 70 when there is no air generation. It is designed to block the inflow of unnecessary air, insects, and dust from the outside.

The air dividing part 40 is cylindrical, and is installed close to the shaft support 24 in the connection housing 10 to partition the space in which the blower fan 22 is installed and the air intake space generated by the exhaust fan 23. it is for

A plurality of exhaust holes 41 for dissipating heat are arranged on the outer periphery of the air dividing unit 40 in a circumferential shape.

The servomotor 50 is installed under the connecting support body 25 , and the camera unit 60 is connected to the rotation shaft of the servomotor 50 so as to be rotatably installed in the forward and reverse directions 360 degrees. For reference, the lens unit 62 for photographing is tilted up and down in the camera unit 60, and is rotated by 360 degrees and adjusted up and down to take pictures.

A temperature sensor 61 is provided on the upper portion of the camera unit 60 to detect internal heat generated during operation within the hemispherical cover 70 .

The hemispherical cover 70 has a cylindrical shape with an open top and a hemispherical bottom at the bottom, the inside of which accommodates the camera unit 60 , and the top side is connected to the air guide unit 30 .

The driving motor 21 , the servo motor 40 , and the temperature sensor 61 according to the present invention are electrically connected to the control unit 80 , and are respectively controllable through the control unit 80 .

In the drawings, reference numeral 3, which is not described, denotes a solar light collecting plate, and 4 denotes a storage battery connected to the solar light collecting plate. It was made to work by supply.

The operation according to the operation of the dome-type CCTV camera of the present invention configured as described above is as follows.

In general, the dome-type CCTV camera 100 capable of 360-degree rotational photography is rotated to a position by direct adjustment per hour or minute or by direct adjustment in the control system to photograph the surrounding situation from the camera as a starting point, and data will be recorded as

In the overall form, the camera unit 60 provided inside the transparent hemispherical cover 70 positioned under the connection housing 10 rotates by driving through the control unit 80 of the servomotor 50 and at the same time, the camera Photography is performed by the lens unit 62 of the unit 60 .

As described above, in the photographing being performed simultaneously with the rotation of the camera unit 60, the heat generated by the internal PCB or infrared LED caused by the driving of the camera unit is the signal detected by the temperature sensor 61, the control unit 80 to rotate the driving motor 21 constituting the fan driving unit 20 .

The blower fan 22 and the exhaust fan 23 provided on the rotating shaft 21a by the driving of the driving motor 21 rotate at a high speed at the same time.

At this time, the heat inside the hemispherical cover 70 is the exhaust fan 23 located on the upper part of the connection support 25 through the heat dissipation hole 25a of the connection support 25 that connects and supports the servomotor 50. is discharged upward due to the generation of suction force of The space in which it is located is emitted.

The blower fan 22 blows the air sucked through the air inlet 12 of the connection housing 10 in the downward direction to maximize the heat dissipation as described above.

As described above, the air sent in the lower direction is rapidly and rapidly through the inner passage of the lower cone part 33 of the air guide part 30 spaced at a predetermined interval around the outer periphery of the hemispherical cover 70 . By spraying air on the outer surface of the hemispherical cover 70 while discharged to .

As described above, the blowing fan 22 and the exhaust fan 23 by the rotation of one driving motor 21 discharge heat inside the hemispherical cover while cleaning the outer surface of the hemispherical cover by forced inflow of external air, respectively. Since it is made, it is possible to record clear image quality by photographing the lens unit 62 of the camera unit 60 .

As described above, the amplification of the wind by the air guide unit 30 according to the rotation of the blowing fan 22 as described above is a side of the hemispherical cover 70 side of the outer surface, that is, the outer surface of the photographing section by the operation of the lens unit. Since the wind is blown intensively and hard on the air, it is possible to prevent the above-mentioned adhesion of dust and rainwater, as well as to solve the existing disadvantages that affect the shooting by sagging the spider's web.

As described above, the heat dissipation effect by the exhaust fan 23 by driving the camera unit 60 has the effect of extending the lifespan of the camera unit and the servo motor 50 inside the hemispherical cover, and furthermore, the hemispherical shape due to the difference in external temperature It is possible to prevent condensation and moisture inside the cover 70 in advance.

On the other hand, when the wind is rapidly amplified and discharged through the air guide unit 30 due to the forced inflow of external air by the driving motor 21 as described above, as shown in FIG. 6 , the air guide unit 30 is The valve 34 provided on the inside of the cone part 33 is normally in close contact with the outer surface of the hemispherical cover 70 to prevent penetration of small insects or dust from the outside. Therefore, it is possible to prevent contamination of the inside of the connection housing 10 as much as possible.

In addition, as shown in FIG. 6 , the blowing fan 22 further includes auxiliary wings 22-1, so that heat can be discharged in a form that can help heat dissipation as quickly as possible.

On the other hand, the cap on the side of the connection housing 10 installed on the suspension rod 1 at the high position without the eaves can prevent rainwater from adhering to the hemispherical cover 70 as much as possible. By operating the blower fan 22 by , rainwater, cobwebs, and internally, the exhaust fan 23 and the heat dissipation efficiency by the blowing fan are increased to maintain a clear shooting field of view of the dome-shaped CCTV camera.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

10: connection housing 11: connection
12: air inlet 13: cap
20: fan driving unit 21: driving motor
21a: rotating shaft 22: blowing fan
22-1: auxiliary wing 23: exhaust fan
24: shaft support 24: diaphragm
24a: male thread part 24b: heat exhaust hole
24c: bearing part 25: connecting support body
25a: heat release hole 30: air guide part
31: body 31a: female thread part
32: fastening part 33: cone part
34: valve 40: air partition
41: exhaust hole 50: servo motor
60: camera unit 61: temperature sensor
70: hemispherical cover 80: control unit
F: filter 100: CCTV camera

Claims (6)

In the dome-type CCTV camera 100, which is installed connected to the connecting rod (2) that is vertically downward on the suspension rod (1) side of the high-place position, and where real-time peripheral photography is made,
The CCTV camera 100,
A connection housing having a cylindrical shape and a connecting part 11 connected to the connecting rod 2 at the upper part, an air inlet 12 is provided on the outer periphery, and a cap part 13 for blocking rainwater on the lower periphery integrally formed (10) and;
A drive motor 21 provided inside the connection housing 10, a blower fan 22 and an exhaust fan 23 coupled at intervals on the rotation shaft 21a of the drive motor 21, and at the center A shaft support 24 penetratingly supporting the rotation shaft 21a of the driving motor 21, coupled to the lower end of the shaft support 24, rotationally supporting the end of the rotation shaft 21a, and dissipating a plurality of heat on one surface a fan driving unit 20 comprising a connecting support body 25 provided with a ball 25a;
an air guide unit 30 interconnected with the shaft support 24 of the connection housing 10 and the fan driving unit 20, and concentrating and discharging the air generated by the fan driving unit 20;
a cylindrical air dividing unit 40 installed close to the shaft support 24 in the connection housing 10 to partition a space in which a blower fan 22 is installed and an air intake space generated by the exhaust fan 23;
a servo motor 50 installed under the connection support body 25;
a camera unit 60 connected to the rotation shaft of the servo motor 50 to be rotatably installed in a forward and reverse direction 360 degrees and having a temperature sensor 61 disposed thereon;
a hemispherical cover 70 having an open upper end and a hemispherical cylindrical shape at the lower end, the inner side accommodates the camera unit, and the upper side is connected to the air guide unit 30;
The drive motor 21, the servo motor 40 and the temperature sensor 61 and the control unit 80 for controlling them electrically connected and installed;
The air guide unit 30,
A cylindrical body 31 having a female threaded portion 31a formed in the inner diameter for fastening the shaft support 24 and the hemispherical cover 70 in a cylindrical shape;
A fastening part 32 extending around the outer circumference of the cylindrical body 31 and having an air through hole 32a in a cylindrical shape;
A dome-type CCTV camera having a shooting field of view, characterized in that it is narrowed downward from the lower part of the fastening part (32) and is spaced apart from the outer diameter of the hemispherical cover (70) and has a cone part (33) for focusing and discharging air.
The method of claim 1,
The shaft support 24,
In a cylindrical shape, a male screw part 24a is formed on the outer periphery of the lower part, a plurality of heat exhaust holes 24b are formed on the inner diameter, and a shaft part 24c is formed in the center, and the diaphragm 24-1 is integrally formed. and a filter (F) detachably provided on either side of the lower or upper portion of the diaphragm (24-1).
delete The method of claim 1,
The inside of the cone part 33 has flexibility, is in contact with the outer periphery of the hemispherical cover 70, and when air is discharged, a valve 34 that is opened by the force of the air is further provided. Dome type CCTV camera with function.
The method of claim 1,
A dome-type CCTV camera having a function of securing a photographing field of view, characterized in that a plurality of exhaust holes 41 for heat dissipation are arranged on the outer periphery of the air dividing unit 40 in a cylindrical shape.
The method of claim 1,
A dome-type CCTV camera having a shooting field of view, characterized in that the blowing fan (22) is further provided with auxiliary wings (22-1) to assist heat dissipation.

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